US3863660A - Method and apparatus for controlling sunlight transmission - Google Patents

Method and apparatus for controlling sunlight transmission Download PDF

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Publication number
US3863660A
US3863660A US273852A US27385272A US3863660A US 3863660 A US3863660 A US 3863660A US 273852 A US273852 A US 273852A US 27385272 A US27385272 A US 27385272A US 3863660 A US3863660 A US 3863660A
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US
United States
Prior art keywords
umbrella
cover
slats
sunlight
parasol
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.)
Expired - Lifetime
Application number
US273852A
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English (en)
Inventor
Werner T Glaeser
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.)
Individual
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 US273852A priority Critical patent/US3863660A/en
Priority to JP48067003A priority patent/JPS4952048A/ja
Priority to IT26681/73A priority patent/IT1012063B/it
Priority to DE19732336665 priority patent/DE2336665A1/de
Priority to GB3472173A priority patent/GB1431315A/en
Application granted granted Critical
Publication of US3863660A publication Critical patent/US3863660A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00—Details of umbrellas
    • A45B25/18—Covers; Means for fastening same
    • A45B25/20—Windows in covers

Definitions

  • ABSTRACT A beach umbrella or parasol construction in which the top material in one embodiment is provided with a multiplicity of openings to permit a controlled portion of the sun's rays to pass through the material and reach the user.
  • the openings also permit aerodynamic pressure equalization across the top to reduce likelihood of damaging the top during gusty wind conditions.
  • the top is fabricated from a number of radially projecting slats which may be pivoted along their longitudinal axes to vary the amount of sunlight passing through the slats.
  • means may be provided to rotate the parasol about its central supporting post so that the user beneath the parasol will receive brief flashes of sunlight in rapid sequence.
  • One embodiment of my invention includes an umbrella or parasol of generally conventional design having a central pole or other supporting element and a skeletal frame over which is stretched a top material of cloth, plastic or other light flexible sheet. A multiplicity of openings are formed in the top material to permit a controlled portion of the sun to reach the user beneath the umbrella top.
  • An additional feature of the invention resides in the elimination of any hot spots below the umbrella. Any heat which normally might tend to become trapped beneath the umbrella, particularly on balmy days, may rise upwardly through the holes to provide continuous and cool circulation.
  • Still another advantage of the invention resides in its resistance to damage or fracture as a result of gusting winds.
  • the multiplicity of holes in the top material of the umbrella permits rapid pressure equalization across both surfaces of the umbrella top thus reducing materially the stresses which normally might be imposed on the umbrella top and frame as a result of high or gusty winds.
  • the invention includes a cover which may be fitted over the top of the parasol to cover the holes formed therein.
  • the top of the parasol is formed from a plurality of slats which extend radially and outwardly from the center of the parasol.
  • the slats are mounted to the frame structure of the parasol so that they may be pivoted above their longitudinal axes between positions in which the sun is precluded from passing through the slats and a position in which the slats lie in a plane substantially parallel to the incident sunlight which then may pass through the top.
  • the angular position of the slats may be adjusted to vary the degree of sunlight passing therebetween.
  • Both embodiments of the invention may include a further modification in which the top of the parasol is rotatably mounted to its central supporting post so that the incident sunlight is alternately interrupted and reaches the user in rapidly repeated brief flashes.
  • the parasol top may be rotated by a motor or may include vanes or the like which rotate the parasol top in response to the wind.
  • a further object of the invention is to provide a method and apparatus for controlling the incident sunlight on the user which avoids the use of lotions. creams. and the like.
  • Another object of the invention is to provide a technique for controlling incident sunlight in which the degree of sunlight reaching the user may be controlled.
  • a further object of the invention is to provide a method and apparatus which enables one to remain outdoors for extended periods of time while avoiding discomfort from the effects of relatively intense sunlight.
  • Still another object of the invention is to provide a parasol having perforations or openings formed therein which permit only a portion of the incident sunlight to pass therethrough.
  • FIG. I is an illustration of one embodiment of the invention in which the parasol top is of continuous construction except for numerous perforations formed therein;
  • FIG. 3A is a somewhat diagrammatic illustration of the slats of the embodiment shown in FIG. 2 as viewed from one end of the slats and showing the position of the slats when fully closed to block fully the sunlight;
  • FIG. 3B is an illustration of the slats similar to that of FIG. 3A illustrating the position of the slats when pivoted to permit a portion of the incident sunlight to pass therethrough.
  • one embodiment of the invention includes a parasol or umbrella of generally conventional design having a rigid center post 10, which supports, at its upper end, a skeletal frame consisting generally of a plurality of radially extending ribs 12.
  • the ribs 12 will be pivotally mounted to the upper end of the post It] so that they may be folded downwardly along the post 10 for more compact storage.
  • the ribs 12 generally are supported by struts 14 which are also pivoted, at their ends, to the center of the ribs 12, and also to a sliding ring 16 which is movable along the post 10. Any number of conventional arrangements may be employed for locking the ring 16 in a position to maintain the struts l4 and ribs 12 in a radially extended position to open the parasol.
  • the ribs 12 are covered by a flexible umbrella top which may be formed from a sheet of cloth, plastic, metal foil, rubber or other material suitable for such use.
  • the umbrella top 18 is formed with a multiplicity of openings 20 which may be spaced equally from each other or may be arranged randomly over the surface of the umbrella top 18. In general. equally spaced holes are preferred in that they may be more simple to manu facture in mass production techniques.
  • the opening may be of any selected shape as round, triangular, pentagonal, hexagonal, octagonal or any other shape regular or irregular.
  • the invention also includes an outer, supplemental covering which is continuous and has no holes.
  • This outer covering 22 may be fit over and about the external surface of the foraminous top 18.
  • the slats 22 are pivotally mounted between the hub 24 and peripheral frame elements 26 to enable the slats to be pivoted to desired po sitions about their longitudinal axes 22.
  • This arrangement may include pivot pins or deformable torsion elements, indicated generally by the reference character 28, which are connected to the central hub 24 and peripheral frames 26.
  • the slats are dimensioned so that they are pivoted to the position shown in FIG. 3A (hereinafter referred to as horizontal) the adjacent slats will overlap or abut each other and will preclude sunlight from passing through the the parasol.
  • the slats may be pivoted about their longitudinal axis as shown in FIG. 38 to permit the incident sunlight to pass therethrough.
  • the quantity of sunlight transmitted is dependent on the angular position of the slats 22 in relation to the direction of the sunlight.
  • the slats may be adjusted by the user to transmit the desired amount of sunlight.
  • the slats or blades may be fabricated from any number of materials such as thin metal sheeting, plastic, rubber and the like. Alternative construction may include a textile covered metal or plastic frame.
  • the central hub 24 and ring 16 are mounted rotatably to the supporting post I0.
  • the bearing surfaces between the hub 24 and rings 16 preferably are low friction and may be formed from roller bearings, teflon journals, or any other well-known arrangements.
  • the umbrella top may be rotated by a battery powered motor (not shown) or by the wind. Because of the an gular disposition of the slats 22 the wind will rotate the umbrella top as the wind passes through and about the slats 22. If desired, supplemental aerodynamic vanes 30 may be attached to the umbrella top to aid in rotating the umbrella top, In the event that there is no wind, the motor-driven arrangement may be employed.
  • parasol is intended to mean not only beach umbrella or hand carried parasols but also to include any structure such as an awning which is intended to provide shade and shield the user from the sun.
  • An umbrella comprising,
  • cover means supported by said cover supporting means and including means defining a plurality of continuously open apertures free from material over substantially the entire surface of said cover means that transmit both sunlight and air therethrough for continuously exposing the user therebeneath to a portion only of the sunrays energy incident upon the top of said cover means and transmitting the flow of air therethrough,
  • aerodynamic means comprising said cover means for rotating said cover support means and cover means in response to the wind.
  • said cover means from a plurality of slats, said slats being pivotally mounted about axis which enable the edges of adjacent slats to be pivoted toward and away from each other.
  • each of said slats extend radially from a central hub and is pivoted along radially extending axis.

Landscapes

  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Building Awnings And Sunshades (AREA)
US273852A 1972-07-21 1972-07-21 Method and apparatus for controlling sunlight transmission Expired - Lifetime US3863660A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US273852A US3863660A (en) 1972-07-21 1972-07-21 Method and apparatus for controlling sunlight transmission
JP48067003A JPS4952048A (it) 1972-07-21 1973-06-15
IT26681/73A IT1012063B (it) 1972-07-21 1973-07-17 Apparecchiatura per controllare la trasmissione della luce solare
DE19732336665 DE2336665A1 (de) 1972-07-21 1973-07-19 Sonnenschirm
GB3472173A GB1431315A (it) 1972-07-21 1973-07-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US273852A US3863660A (en) 1972-07-21 1972-07-21 Method and apparatus for controlling sunlight transmission

Publications (1)

Publication Number Publication Date
US3863660A true US3863660A (en) 1975-02-04

Family

ID=23045690

Family Applications (1)

Application Number Title Priority Date Filing Date
US273852A Expired - Lifetime US3863660A (en) 1972-07-21 1972-07-21 Method and apparatus for controlling sunlight transmission

Country Status (5)

Country Link
US (1) US3863660A (it)
JP (1) JPS4952048A (it)
DE (1) DE2336665A1 (it)
GB (1) GB1431315A (it)
IT (1) IT1012063B (it)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184502A (en) * 1978-08-10 1980-01-22 Anderson Byron Jr Shade apparatus
US4327520A (en) * 1979-07-05 1982-05-04 Saxby Michael E Cloches
US4649947A (en) * 1983-08-19 1987-03-17 Brunswick Corporation Expandable soft side shelter
US4718188A (en) * 1986-08-08 1988-01-12 Roberts Fred W Ice removal device
US4979534A (en) * 1989-02-10 1990-12-25 Leonard Holtz Windproof umbrella
US5065779A (en) * 1989-02-10 1991-11-19 Leonard Holtz Windproof umbrella
US5103848A (en) * 1990-04-23 1992-04-14 Parsons Gerald W Sunshade umbrella
US5429147A (en) * 1993-10-15 1995-07-04 Barrington; Joan Detachable cover umbrella
US5606986A (en) * 1995-01-23 1997-03-04 Muise; Eric M. Clear top inside veil tent
WO1998001052A1 (de) * 1996-07-06 1998-01-15 Engelbert Hollah Sonnenschutz
RU2119291C1 (ru) * 1996-07-05 1998-09-27 Станислав Данилович Хотимский Устройство для защиты от солнечного излучения с установленным на нем средством для постоянного контроля допустимого для человека уровня солнечной радиации в уф-диапазоне
US5890506A (en) * 1997-02-24 1999-04-06 Kupferman; Glenn Umbrella and umbrella canopy
US20060207640A1 (en) * 2003-07-07 2006-09-21 Connelly Kevin T Combination of a shade and rain umbrella with an emergency indication on the rain cover
US20060260668A1 (en) * 2005-05-18 2006-11-23 Stollar Wendy A Decorative theme umbrella slipcover
US20070125409A1 (en) * 2005-12-06 2007-06-07 Debbie Colleen Cullen Umbrella cover and related systems and methods
US20070256717A1 (en) * 2005-05-18 2007-11-08 Stollar Wendy A Decorative theme slipcover for patio and beach umbrellas
US20080308139A1 (en) * 2007-06-18 2008-12-18 Keesling Jerry M Reflective overlay for shade umbrellas
US20090107973A1 (en) * 2007-10-25 2009-04-30 Mei-Hsiang Pai Heating and heat preservation cover and heat preservation cover
USD622498S1 (en) * 2009-01-26 2010-08-31 Alain Perez Umbrella cover
USD630008S1 (en) * 2009-02-05 2011-01-04 Alain Perez Umbrella cover
US9986799B1 (en) * 2017-08-11 2018-06-05 Daniel P. King Wind-proof dual canopy system
CN109090784A (zh) * 2018-10-19 2018-12-28 刘庆连 基于气流防止湿身并降低伞面滴淋的雨伞
GR20170100257A (el) * 2017-06-08 2019-03-20 Νικολαος Παντελη Πασπατακης Αναδιπλουμενο συστημα σκιασης με περσιδες
US20240344350A1 (en) * 2016-02-22 2024-10-17 John J. Dresch Wind-resistant adjustable shade shelter
US20250325077A1 (en) * 2024-04-22 2025-10-23 Andrew APOLLONSKY Powered sun umbrella

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8906931U1 (de) * 1989-06-06 1989-08-03 Ernst, Franz Theo, Dr.med., 4600 Dortmund Sonnenschutzvorrichtung
FR2664137B1 (fr) * 1990-07-06 1993-02-19 Horbacz Pascal Parapluie muni d'une coiffe amovible et interchangeable.
DE19708174C1 (de) * 1996-07-06 1998-02-12 Engelbert Hollah Sonnenschutz
DE19705572C2 (de) * 1997-02-14 1999-10-14 Sl Sonderkonstruktionen Und Le Sonnenschutzeinrichtung mit Ventilation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US341734A (en) * 1886-05-11 Joseph hamblet davies
US2118474A (en) * 1935-07-01 1938-05-24 Morton Agnes Whitton Portable sun and wind shelter for beach or like use
US2685885A (en) * 1950-11-24 1954-08-10 Mcfarland Awning Corp Umbrella
US2756760A (en) * 1954-02-05 1956-07-31 Grotteria Julius K La Sunshade for playpens
US3386455A (en) * 1967-03-28 1968-06-04 John D. O'rear Wind-resistant umbrella

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US341734A (en) * 1886-05-11 Joseph hamblet davies
US2118474A (en) * 1935-07-01 1938-05-24 Morton Agnes Whitton Portable sun and wind shelter for beach or like use
US2685885A (en) * 1950-11-24 1954-08-10 Mcfarland Awning Corp Umbrella
US2756760A (en) * 1954-02-05 1956-07-31 Grotteria Julius K La Sunshade for playpens
US3386455A (en) * 1967-03-28 1968-06-04 John D. O'rear Wind-resistant umbrella

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184502A (en) * 1978-08-10 1980-01-22 Anderson Byron Jr Shade apparatus
US4327520A (en) * 1979-07-05 1982-05-04 Saxby Michael E Cloches
US4649947A (en) * 1983-08-19 1987-03-17 Brunswick Corporation Expandable soft side shelter
US4718188A (en) * 1986-08-08 1988-01-12 Roberts Fred W Ice removal device
US4979534A (en) * 1989-02-10 1990-12-25 Leonard Holtz Windproof umbrella
US5065779A (en) * 1989-02-10 1991-11-19 Leonard Holtz Windproof umbrella
US5368055A (en) * 1989-02-10 1994-11-29 Leonard Holtz Windproof umbrella
US5103848A (en) * 1990-04-23 1992-04-14 Parsons Gerald W Sunshade umbrella
US5429147A (en) * 1993-10-15 1995-07-04 Barrington; Joan Detachable cover umbrella
US5606986A (en) * 1995-01-23 1997-03-04 Muise; Eric M. Clear top inside veil tent
RU2119291C1 (ru) * 1996-07-05 1998-09-27 Станислав Данилович Хотимский Устройство для защиты от солнечного излучения с установленным на нем средством для постоянного контроля допустимого для человека уровня солнечной радиации в уф-диапазоне
WO1998001052A1 (de) * 1996-07-06 1998-01-15 Engelbert Hollah Sonnenschutz
US5890506A (en) * 1997-02-24 1999-04-06 Kupferman; Glenn Umbrella and umbrella canopy
US20060207640A1 (en) * 2003-07-07 2006-09-21 Connelly Kevin T Combination of a shade and rain umbrella with an emergency indication on the rain cover
US20060260668A1 (en) * 2005-05-18 2006-11-23 Stollar Wendy A Decorative theme umbrella slipcover
US20070256717A1 (en) * 2005-05-18 2007-11-08 Stollar Wendy A Decorative theme slipcover for patio and beach umbrellas
US20070125409A1 (en) * 2005-12-06 2007-06-07 Debbie Colleen Cullen Umbrella cover and related systems and methods
US20080308139A1 (en) * 2007-06-18 2008-12-18 Keesling Jerry M Reflective overlay for shade umbrellas
US20090107973A1 (en) * 2007-10-25 2009-04-30 Mei-Hsiang Pai Heating and heat preservation cover and heat preservation cover
USD622498S1 (en) * 2009-01-26 2010-08-31 Alain Perez Umbrella cover
USD630008S1 (en) * 2009-02-05 2011-01-04 Alain Perez Umbrella cover
US20240344350A1 (en) * 2016-02-22 2024-10-17 John J. Dresch Wind-resistant adjustable shade shelter
US12345064B2 (en) * 2016-02-22 2025-07-01 John J. Dresch Wind-resistant adjustable shade shelter
GR20170100257A (el) * 2017-06-08 2019-03-20 Νικολαος Παντελη Πασπατακης Αναδιπλουμενο συστημα σκιασης με περσιδες
US9986799B1 (en) * 2017-08-11 2018-06-05 Daniel P. King Wind-proof dual canopy system
CN109090784A (zh) * 2018-10-19 2018-12-28 刘庆连 基于气流防止湿身并降低伞面滴淋的雨伞
US20250325077A1 (en) * 2024-04-22 2025-10-23 Andrew APOLLONSKY Powered sun umbrella

Also Published As

Publication number Publication date
GB1431315A (it) 1976-04-07
DE2336665A1 (de) 1974-01-31
JPS4952048A (it) 1974-05-21
IT1012063B (it) 1977-03-10

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