US20090107381A1 - Universal Depth Boat - Google Patents

Universal Depth Boat Download PDF

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Publication number
US20090107381A1
US20090107381A1 US12/258,676 US25867608A US2009107381A1 US 20090107381 A1 US20090107381 A1 US 20090107381A1 US 25867608 A US25867608 A US 25867608A US 2009107381 A1 US2009107381 A1 US 2009107381A1
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US
United States
Prior art keywords
hull
stern
bow
sides
flat bottom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/258,676
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English (en)
Inventor
Timothy D. Woods
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PHOWLER BOAT COMPANY Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US12/258,676 priority Critical patent/US20090107381A1/en
Priority to CA002641890A priority patent/CA2641890A1/fr
Publication of US20090107381A1 publication Critical patent/US20090107381A1/en
Assigned to ILLOWA RESOURCE DEVELOPMENT, INC. DBA LARRY'S MARINE reassignment ILLOWA RESOURCE DEVELOPMENT, INC. DBA LARRY'S MARINE ORDER AND JUDGMENT Assignors: TMT MANUFACTURING, INC.
Assigned to PHOWLER BOAT COMPANY, INC. reassignment PHOWLER BOAT COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ILLOWA RESOURCE DEVELOPMENT, INC. DBA LARRY'S MARINE
Priority to US13/189,882 priority patent/US20110297068A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present invention relates generally to watercraft. More specifically, the present invention relates to watercraft hulls designed to displace water in a manner to provide enhanced stability and movement through the water while simultaneously allowing the watercraft to operate in extremely shallow water.
  • Conventional recreational and commercial watercrafts for the most part, incorporate hulls that have V-shaped bottoms, with the V-shape forming a keel at its lowest point.
  • the V-shape is thought to enable the boat, as speed is increased, to be pushed upwardly out of the water, as the water traversing against the boat's bow is forced sideways and downwardly at a vector to the outer shape of the hull.
  • Such designs have been used for years, but have various deficiencies.
  • V-shaped hull designs initially, as velocity begins to increase from zero the bow of the boat acts much like a plow, digging into and through the surface of the water. This creates what is known as a “bow wave”. As velocity increases, the bow tends to be forced upwardly by the sideways and downward force being applied to the water by the curvature of the V-shape of the hull, which is being forced horizontally forward and up over the bow wave.
  • the hydraulic force of the water against the V-shaped hull is substantial, and thus at least an equally substantial counteracting force must be provided by the engine of the boat.
  • Significant power is required to get the boat up to the planing position and to maintain it there.
  • the ultimate speed of the boat when planing depends on the specific design of the V-shaped hull, the weight (and weight distribution) of the boat, and the available power (i.e., the size of the engine and the size and pitch of the propeller that is driven by the engine).
  • the forward movement of the boat at any speed, whether planing or not is counteracted by both crossways and downward vectors of force produced by the relative hydraulic movement of the water against the hull.
  • the amount of fuel needed to power a boat at a given velocity is in direct proportion to the overall degree of each of the forces that must be overcome to move that boat forward over a given distance. The greater those forces, the greater the amount of fuel required.
  • hull designs that tend to reduce the overall amount of opposing forces directed against the hull during forward movement of the boat are desirable.
  • One approach to mitigate fuel usage is the use of relatively flat bottom hulls wherein there is less counteracting hydraulic force imposed against the hull as the boat moves forward. A flat hull is more readily pushed directly up over the bow wave to a position substantially on top of the water, creating less displacement of water by the hull in the dynamic mode as distinguished from the static mode.
  • Watercraft or boats with flat bottom hulls have been known for years. Small fishing boats have been manufactured using this design. Such boats have a relatively shallow draft to enable sports fishermen or hunters to reach shallow waters along shorelines, shallow and swampy areas, and lakes, ponds, and/or streams that are not sufficiently deep to accommodate the draft of conventional V-bottom boats.
  • Bass boat hulls are relatively narrow, in relation to length, with generally flat bottoms and relatively shallow V-shapes, if any.
  • the draft of these boats is relatively shallow in comparison to V-shaped hulls.
  • bass boat hulls are relatively narrow beamed and there is relatively little crossways or lateral force exerted against the hull of a bass boat, there is correspondingly less lateral stability; and, due to a relatively narrow beam, such boats tend to be susceptible to laterally moving waves.
  • these flat bottom hulls are also generally more susceptible to waves as the hull rides more on top of the waves rather than slicing through waves as V-shaped hulls do to a greater degree.
  • flat-bottomed boats do not steer as easily or as precisely as those with distinct, V-shaped hulls, again due to the fact that such boats incur relatively less opposing crossways forces (which are the forces that tend to hold a boat to a straight forward movement).
  • Both types of hulls are susceptible to wave action and may produce instability depending on the height and direction of waves. Both types of hulls have large surfaces which absorb the force of waves and cause significant vibration, vertical or lateral movement, or a combination thereof.
  • Other boats include hull designs which incorporate pontoons or sponsons for lateral stability and floatation, but such systems are undesirable for a number of reasons.
  • the invention is directed to a universal depth boat and universal depth boat hull design that overcome the deficiencies of prior designs.
  • the universal depth boat comprises a hull having a bow, stern, V-hull portion, flat bottom, keel, and first and second sides.
  • the V-hull portion performs the wave-spreading function of the hull and is located at a forward portion adjacent the bow of the craft.
  • the V-hull portion lends the universal depth boat greater stability and maneuverability over a bass boat.
  • the flat bottom performs the wave riding function of the hull and is located at a rear portion adjacent the stern. The flat bottom allows the universal depth boat to be operated in extremely shallow waters compared to conventional V-hull boats.
  • the combination of a V-hull portion adjacent the bow and a flat bottom adjacent the stern allows the universal depth boat to perform in both deep and shallow waters while being extremely durable, stable, and maneuverable.
  • the stern of the universal depth boat allows for single or dual motor mountings so that one motor may be used for operation in deep water and the other for operation in shallow water.
  • the universal depth boat hull design allows the universal depth boat to traverse wing dams and even short spans of dry land in certain scenarios.
  • the structure of the hull is designed to allow for stability and rapid turning in shallow or deep waters.
  • the supporting structure components are on the interior of the hull, inside the boat—nothing is external to the hull providing a continuously smooth outer surface, which may be constructed of a single, unitary piece of material.
  • a plurality of planes may be placed in the hull structure along the transition from the V-hull portion to the sides and/or the transition from the flat bottom to the sides through bending to increase the structural rigidity of the hull from the bow to the stern and affect the drag and stability of the universal depth boat as desired.
  • the universal depth boat as disclosed allows waterfowl hunters to access areas that are inaccessible to other watercraft.
  • the universal depth boat provides fishermen with the ability to cross timbers and transverse marshy areas that would otherwise be inaccessible.
  • the universal depth boat may also be used by emergency response crews because it gives such crews the ability to reach victims in traditionally inaccessible areas.
  • the universal depth boat allows navigation of floodwaters having debris and unknown obstacles beneath the surface without fear of damage to the hull.
  • FIG. 1 provides a front perspective view of an exemplary embodiment of the universal depth boat.
  • FIG. 2 provides a rear perspective view of the exemplary embodiment of the universal depth boat.
  • FIG. 3 provides a detailed rear view of the exemplary embodiment of the universal depth boat.
  • FIG. 4 provides a detailed front view of the exemplary embodiment of the universal depth boat.
  • FIG. 5 provides a detailed top view of the exemplary embodiment of the universal depth boat.
  • FIG. 6 provides a top view of the hull from the exemplary embodiment of the universal depth boat before the various fingers are joined.
  • FIG. 1 provides a front perspective view of an exemplary embodiment of the universal depth boat 10 .
  • FIG. 2 provides a rear perspective view of the exemplary embodiment of the universal depth boat 10 .
  • the universal depth boat 10 includes a hull 19 with two main portions: a V-hull portion 11 adjacent the front of the universal depth boat 10 (i.e., the bow 17 ) and a flat bottom 12 adjacent the rear of the universal depth boat 10 (i.e., the stern 16 , which may also be referred to as the transon).
  • the stern 16 may be sized and configured so that an outboard marine motor (not shown) may be mounted thereto.
  • the hull 19 may be made of a single piece of material. As shown, the universal depth boat 10 has a full floatation hull 19 with the openness of a commercial-style hull 19 . In the exemplary embodiment, the hull 19 has a lower rake angle to improve shallow water performance and provide improved planing characteristics. Accordingly, the universal depth boat 10 may be operated in extremely shallow water and plane out on the surface of the water at lower speeds as compared to conventional V-hull boats.
  • the V-hull portion 11 of the hull 19 provides the user with greater ability to traverse waves and increases the stability of the universal depth boat 10 in open water and while turning.
  • FIG. 6 shows the hull 19 outline for the exemplary embodiment of the universal depth boat wherein the hull 19 is constructed of a single piece of aluminum. Fingers 29 are cut into the aluminum sheet as shown in FIG. 6 , and then the sheet is bent according to design specifications for form the hull 19 .
  • the hull 19 may include four planes 14 a, 14 b, 14 c, and 14 d in the transition from the flat bottom 12 to the first side 18 a and second side 18 b, respectively. From the flat bottom 12 , the first plane 14 a may be angled approximately nineteen degrees on both the first and second sides 18 a, 18 b.
  • the second plane 14 b may be angled approximately twenty degrees on both the first and second sides 18 a, 18 b.
  • the third plane 14 c may be angled approximately twenty degrees, and the fourth plane 14 d may be angled approximately twenty degrees from the third plane 14 c.
  • the fourth plane 14 d on each of the first and second sides 18 a, 18 b forms the upper-most portion of the sides of the hull 19 .
  • the fourth plane 14 d at the area adjacent the stern 16 may be twenty to twenty four inches high depending on the length, width, and design specifications of the universal depth boat 10 .
  • the first and second sides 18 a, 18 b may be higher or lower in other embodiments depending on the requirements of the user.
  • the first and second planes 14 a, 14 b may intersect one another at the transition of the hull 19 from the flat bottom 12 to the V-hull portion 11 . From this point of intersection, the first and second planes 14 a, 14 b may increase in width towards the stern 16 to aid the universal depth boat 10 in planing out on the water surface. At the stern, the width of the first and second planes 14 a, 14 b may be from one to twenty centimeters, depending on the application of the universal depth boat 10 .
  • the third and fourth planes 14 c, 14 d may terminate at their respective interfaces with the V-hull portion 11 , as shown in FIG. 1 .
  • the width of the third and fourth planes 14 c, 14 d may be from five to fifty five centimeters.
  • the universal depth boat 10 does not have first, second, and/or third planes 14 a, 14 b, 14 c.
  • the fourth plane 14 d is adjacent the flat bottom 12 , and the first and second sides 18 a, 18 b are formed exclusively from the fourth plane 14 d.
  • the hull 19 as viewed from the stern 16 would resemble a block-shaped “U”.
  • the universal depth boat 10 has first a plane 14 a and a fourth plane 14 d, but does not have second or third planes 14 b, 14 c.
  • the universal depth boat 10 may include any combination of planes 14 a, 14 b, 14 c, and/or 14 d at any orientation with respect to one another, the flat bottom 12 , and the V-hull portion 11 .
  • the vertical distance from the interface of the flat bottom 12 to the V-hull portion 11 to the top rails 21 a, 21 b will vary depending on the specific application of the universal depth boat 10 and in no way limits the scope of the present invention. Those skilled in the art will recognize that this vertical distance affects the stability of the universal depth boat 10 and the minimum depth of water in which it will operate.
  • the overall length of the universal depth boat 10 , the length and width of the V-hull portion 11 , the length and width of the flat bottom 12 , and the weight of the universal depth boat 10 may vary depending on the specific application.
  • the preceding design factor coupled with the presence or absence, dimensions, and orientation of planes 14 a, 14 b, 14 c, 14 d in the hull 19 affect the stability, maneuverability, and minimum depth of water required for operation of the universal depth boat 10 .
  • the distance from bow 17 to stern 16 may be as little as six feet or as much as twenty four feet, or it may be some value outside of that range.
  • the width of the stern 16 may be as little as two feet or as much as eight feet, or it may be some value outside that range. Accordingly, an infinite number of orientations and configurations will be apparent to those skilled in the art within the spirit and scope of the present invention.
  • the V-hull portion 11 may be formed.
  • the various fingers 29 shown in FIG. 6 are brought together and joined to form the V-hull portion 11 .
  • the fingers 29 may be joined by any method known to those skilled in the art that is appropriate for the material used in the hull 19 .
  • the fingers 29 may be welded; if the hull 19 is made of a polymer material, the fingers 29 may be chemically or thermally fused.
  • a keel 13 may be affixed to the center line of the V-hull portion 11 to increase strength and rigidity of the universal depth boat 10 .
  • the keel 13 may be affixed to the hull 19 in any manner known to those skilled in the art that is appropriate for the materials of construction.
  • a shelf 26 may be fashioned in the V-hull portion 11 along the interface of two fingers 29 on each side of the universal depth boat 10 .
  • the shelf 26 serves to deflect water or other material from entering the interior of the universal depth boat 10 .
  • a first top rail 21 a is placed on the top surface of the fourth plane 14 d on the first side 18 a
  • a corresponding second top rail 21 b is placed on the top surface of the fourth plane 14 d on the second side 14 b in the exemplary embodiment.
  • a plurality of cross supports 22 and longitudinal supports 23 may be affixed to the interior surface of the hull 19 , as shown in FIG. 5 .
  • a bow cap 24 may be affixed to the bow 17 and first and second top rails 21 a, 21 b.
  • two stern caps 25 may be affixed to the first and second sides 18 a, 18 b and the stern 16 , respectively.
  • the materials of construction, number, and orientation of the cross supports 22 , longitudinal supports 23 , bow cap 24 , and stern caps 25 will vary depending on the specific application of the universal depth boat 10 .
  • the universal depth boat 10 is designed so that stresses and forces are transferred across the entire hull 19 to prevent hooking and flexing.
  • Floor panels 40 may be placed over or around the cross supports 22 and longitudinal supports 23 so that the universal depth boat 10 has a flat floor for occupants. Additionally, seating structures, such as pods 42 , may be placed over the cross supports 22 and/or longitudinal supports 23 , or pods 42 may be placed directly onto floor panels 40 at convenient locations. Additionally, a deck 28 may be positioned between the first and second top rails 21 a, 21 b near the bow 17 for added strength or simply to create additional storage space protected from the elements in the area underneath the deck 28 . The materials of construction, number, and orientation of the floor panels 40 , pods 42 , and or decks 28 will vary depending on the specific application of the universal depth boat 10 and therefore are not limiting.
  • a trim tab 15 may be placed at the interface of the flat bottom 12 and the stern 16 .
  • the trim tab 15 may be integrally formed with either the flat bottom 12 or the stern 16 , or it may be separately affixed thereto.
  • the trim tab 15 may be used to adjust the angle of the universal depth boat 10 with respect to the water surface at a given speed by adjusting the angle of the trim tab 15 relative to the flat bottom 12 .
  • the universal depth boat 10 may include runners (not shown) affixed to the exterior portion of the hull 19 .
  • the runners (not shown) may be shaped as a fin and extend a predetermined distance from the surface of the hull 19 .
  • the runners (not shown) aide in cornering and maneuverability, and may be constructed of any suitable material, such as aluminum, wood, polymers, etc.
  • the runners (not shown) may be affixed to the hull 19 by any means suitable for the materials of construction that is known to those skilled in the art.
  • runners each placed approximately one foot from their respective sides 18 a, 18 b extending approximately ten feet from the stern along the flat bottom 12 , and approximately extending one inch from the surface of the hull 19 would provide increased maneuverability in many situations.
  • other configurations and/or dimensions of runners may be used without departing from the spirit and scope of the present invention.
  • the universal depth boat 10 and the various elements thereof may be constructed from aluminum with a single-piece formed hull 19 as described above, or from multiple sheets of material with welded seams therebetween.
  • the hull 19 is constructed from 0.125 inch thick marine-grade aluminum and is one piece. All supports and structures may be welded to one another. Alternatively, riveting may be used to attach certain elements to one another, such as floor panels 40 , bow cap 24 , and the like.
  • the stern 16 is typically constructed from a strong material capable of supporting the weight of an outboard marine engine from two to one hundred and fifty horsepower. This may be a thick aluminum or other material known to those skilled in the art, such as steel, metallic alloy, wood, polymeric material, etc.
  • the hull 19 and other portions of the universal depth boat 10 may be fabricated from materials other than aluminum, such as, for example, fiberglass reinforced plastic, high-density polyethylene, high-strength polymers, or other suitable materials.
  • the universal depth 10 boat may be equipped with a wide range of accessories and options including multiple seats, accessory lights and racks, accessory electrical plugs, winch mounts, extended deck storage, onboard fuel tanks, lockable storage spaces, stern 16 cutouts for specific motors, or any other accessory known to those skilled in the art for use with boats.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
US12/258,676 2007-10-27 2008-10-27 Universal Depth Boat Abandoned US20090107381A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/258,676 US20090107381A1 (en) 2007-10-27 2008-10-27 Universal Depth Boat
CA002641890A CA2641890A1 (fr) 2007-10-27 2008-10-27 Embarcation universelle pouvant naviguer dans des eaux de n'importe quelle profondeur
US13/189,882 US20110297068A1 (en) 2007-10-27 2011-07-25 Universal depth boat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54507P 2007-10-27 2007-10-27
US12/258,676 US20090107381A1 (en) 2007-10-27 2008-10-27 Universal Depth Boat

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/189,882 Continuation US20110297068A1 (en) 2007-10-27 2011-07-25 Universal depth boat

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US20090107381A1 true US20090107381A1 (en) 2009-04-30

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US12/258,676 Abandoned US20090107381A1 (en) 2007-10-27 2008-10-27 Universal Depth Boat
US13/189,882 Abandoned US20110297068A1 (en) 2007-10-27 2011-07-25 Universal depth boat

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US13/189,882 Abandoned US20110297068A1 (en) 2007-10-27 2011-07-25 Universal depth boat

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US (2) US20090107381A1 (fr)
CA (1) CA2641890A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230144630A1 (en) * 2021-06-04 2023-05-11 Kevin Fenn Paddlecraft and Method of Making Same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9254891B1 (en) 2014-10-29 2016-02-09 James Frederick Turner Marine vessel hull

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572623A (en) * 1946-12-05 1951-10-23 Hoppenstand David Boat structure
US3045629A (en) * 1959-12-11 1962-07-24 Floyd W Farrington Boat hull
US3179961A (en) * 1963-12-11 1965-04-27 Dura Craft Boats Inc Flat bottomed fishing boat
US3221351A (en) * 1964-01-30 1965-12-07 Rogenald J Keller Boat hull construction
US5063870A (en) * 1991-01-23 1991-11-12 Warren Wagner Boat bottom construction
US5549071A (en) * 1995-07-03 1996-08-27 Tige Boats Ski tow boat with wake control device and method for operation
US5571634A (en) * 1993-03-05 1996-11-05 Bell Communications Research, Inc. Hybrid lithium-ion battery polymer matrix compositions
US5818200A (en) * 1997-05-06 1998-10-06 Dell U.S.A., L.P. Dual smart battery detection system and method for portable computers
US6005367A (en) * 1998-07-14 1999-12-21 Centurion International, Inc. Smart power system
US6063519A (en) * 1998-05-15 2000-05-16 Valence Technology, Inc. Grid placement in lithium ion bi-cell counter electrodes
US6216622B1 (en) * 1997-09-10 2001-04-17 N.P.M. Holdings, Inc. Boat hull with center V-hull and sponsons
US6731022B2 (en) * 2001-10-11 2004-05-04 Denovo Research, Llc Digital battery
US6892147B2 (en) * 2003-04-18 2005-05-10 Dell Products L.P. Information handling system including a power management apparatus capable of independently switching between a primary and secondary battery
US20070279953A1 (en) * 2006-05-15 2007-12-06 A123 System, Inc. Multi-configurable, scalable, redundant battery module with multiple fault tolerance
US7378819B2 (en) * 2005-01-13 2008-05-27 Dell Products Lp Systems and methods for regulating pulsed pre-charge current in a battery system
US7391184B2 (en) * 2005-02-16 2008-06-24 Dell Products L.P. Systems and methods for integration of charger regulation within a battery system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850297A (en) * 1987-01-08 1989-07-25 Rogstad Keith L Laminate structure and boat hull made therefrom
US4860682A (en) * 1988-06-10 1989-08-29 Gunderson Charles F Unitary-panel boat hull construction

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572623A (en) * 1946-12-05 1951-10-23 Hoppenstand David Boat structure
US3045629A (en) * 1959-12-11 1962-07-24 Floyd W Farrington Boat hull
US3179961A (en) * 1963-12-11 1965-04-27 Dura Craft Boats Inc Flat bottomed fishing boat
US3221351A (en) * 1964-01-30 1965-12-07 Rogenald J Keller Boat hull construction
US5063870A (en) * 1991-01-23 1991-11-12 Warren Wagner Boat bottom construction
US5571634A (en) * 1993-03-05 1996-11-05 Bell Communications Research, Inc. Hybrid lithium-ion battery polymer matrix compositions
US5549071A (en) * 1995-07-03 1996-08-27 Tige Boats Ski tow boat with wake control device and method for operation
US5818200A (en) * 1997-05-06 1998-10-06 Dell U.S.A., L.P. Dual smart battery detection system and method for portable computers
US6216622B1 (en) * 1997-09-10 2001-04-17 N.P.M. Holdings, Inc. Boat hull with center V-hull and sponsons
US6063519A (en) * 1998-05-15 2000-05-16 Valence Technology, Inc. Grid placement in lithium ion bi-cell counter electrodes
US6005367A (en) * 1998-07-14 1999-12-21 Centurion International, Inc. Smart power system
US6731022B2 (en) * 2001-10-11 2004-05-04 Denovo Research, Llc Digital battery
US6892147B2 (en) * 2003-04-18 2005-05-10 Dell Products L.P. Information handling system including a power management apparatus capable of independently switching between a primary and secondary battery
US7378819B2 (en) * 2005-01-13 2008-05-27 Dell Products Lp Systems and methods for regulating pulsed pre-charge current in a battery system
US7391184B2 (en) * 2005-02-16 2008-06-24 Dell Products L.P. Systems and methods for integration of charger regulation within a battery system
US20070279953A1 (en) * 2006-05-15 2007-12-06 A123 System, Inc. Multi-configurable, scalable, redundant battery module with multiple fault tolerance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230144630A1 (en) * 2021-06-04 2023-05-11 Kevin Fenn Paddlecraft and Method of Making Same

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Publication number Publication date
US20110297068A1 (en) 2011-12-08
CA2641890A1 (fr) 2009-04-27

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