WO2001087455A1 - Plastic filter housing having a weld seam skewed with regard to a plane normal to the longitudinal axis of the housing - Google Patents

Plastic filter housing having a weld seam skewed with regard to a plane normal to the longitudinal axis of the housing Download PDF

Info

Publication number
WO2001087455A1
WO2001087455A1 PCT/US2001/015493 US0115493W WO0187455A1 WO 2001087455 A1 WO2001087455 A1 WO 2001087455A1 US 0115493 W US0115493 W US 0115493W WO 0187455 A1 WO0187455 A1 WO 0187455A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
end portion
side wall
seam
longitudinal axis
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.)
Ceased
Application number
PCT/US2001/015493
Other languages
French (fr)
Inventor
Timothy L. Memmer
Gerard W. Bilski
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.)
Honeywell International Inc
Original Assignee
Honeywell International Inc
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 Honeywell International Inc filed Critical Honeywell International Inc
Priority to CA002408744A priority Critical patent/CA2408744A1/en
Priority to DE60109155T priority patent/DE60109155T2/en
Priority to EP01935459A priority patent/EP1286742B1/en
Priority to MXPA02011278A priority patent/MXPA02011278A/en
Priority to AT01935459T priority patent/ATE289849T1/en
Priority to JP2001583909A priority patent/JP2003533341A/en
Publication of WO2001087455A1 publication Critical patent/WO2001087455A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/005—Making filter elements not provided for elsewhere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/08—Construction of the casing

Definitions

  • the present invention relates to a hollow molded plastic housing, formed from multiple
  • the present invention relates to a molded plastic housing of the type described and having a skewed
  • weld seam that is, having a weld seam which does not coincide with any plane perpendicular to
  • housings have been known and made of multiple parts which are glued or welded together around a filter element.
  • This known type of fuel filter also has relatively narrow inlet and outlet tubes extending outwardly away from opposite ends of the housing.
  • the seam is disposed in a skewed orientation with respect to a longitudinal axis of the housing.
  • a filter housing generally, includes a first housing member
  • Figure 1 is an assembled side plan view of a fuel filter housing according to a first
  • Figure 2 is an exploded side plan view of a fuel filter housing according to the first embodiment of the present invention
  • Figure 3 is an end plan view of a first housing member which is a first component of the
  • Figure 4 is an end plan view of a second housing member which is a second component
  • FIG. 5 is an exploded top plan view of a fuel filter which includes the housing of Figure
  • Figure 6 is an assembled side plan view of a fuel filter housing according to a second
  • Figure 7 is an exploded side plan view of a fuel filter housing according to the second
  • Figure 8 is a perspective view of a first housing member which is a first component of the
  • Figure 9 is an internal end plan view of a second housing member which is a second
  • Figure 10 is an exploded top plan view of the housing of Figures 6-7.
  • the housing 10 is made up of two complimentary housing members 12, 14 joined together as an integral unit.
  • the first and second housing members 12, 14 share a common longitudinal axis 16 ( Figure 5).
  • Figure 5 As seen in the end views of Figures 3 and 4, the housing 10, in the depicted embodiment, has a substantially kidney-shaped outline and cross-sectional shape.
  • the housing members are connected and sealingly joined together along a seam 15.
  • the seam 15 is skewed, away from alignment with a plane
  • the first housing member 12 has a first end portion 20 and a first side wall 22 integrally
  • first end portion 20 and the first end portion 20 are formed with, and extending away from the first end portion.
  • first housing member has a first aperture 21 formed
  • the first aperture 21 is in fluid communication with the
  • the first hollow socket 24 may form an outlet for the housing 10.
  • the first side wall 22 has an edge 25 defining a first mating surface 28, with a first shape
  • the external flow tube 18 extends outwardly away from the first
  • the second housing member 14 has a second end portion 30 and a second side wall
  • the second side wall 32 cooperate to define a second hollow socket 34 for receiving a second end of the filter element 26 therein.
  • the second side wall has an edge 35 defining a second mating surface 38, with a second shape, opposite the second end wall 30.
  • the second housing member 14 has a second aperture 31 formed through the second end portion 30 thereof.
  • the second aperture 31 is in fluid communication with the
  • the second aperture 31 may form a bypass outlet channel for the
  • the second mating surface 38 corresponds to, and is alignable with the first mating
  • the seam 15 is disposed in a skewed orientation with respect to a plane which is
  • the seam 15 is curvilinear and non-planar.
  • mating surface 28 includes a protrusion which fits into a notch 39 of the second mating surface
  • the seam 15 may be symmetrical or asymmetrical, as desired.
  • the housing 210 is made up of two complimentary housing members 212, 214 joined together as an integral unit. The first
  • second depicted embodiment has a substantially kidney-shaped outline and cross-sectional
  • the housing members 212, 214 are connected and sealingly joined together along a seam 215.
  • the seam 215 is skewed, away from the orthogonal.
  • the seam 215 is skewed out of alignment with a plane transverse to the
  • first housing member 212 to be made with an external flow tube 218, formed as an integral part thereof, in a single molding operation.
  • the housing 210 according to the second depicted embodiment is substantially identical
  • first and second housing members at the respective seams 15, 215.
  • first housing member 212 has a first
  • the first end portion 220 and the first side wall 222 cooperate to define a first
  • the filter element is the
  • the second aperture 221 formed through the first end portion 220 thereof.
  • the first aperture 221 is in fluid communication with the first hollow socket 224.
  • the first aperture 221 may form
  • the first side wall 222 has an edge 225 defining a first mating surface 228, with a first
  • the external flow tube 218 extends outwardly away from
  • the first side wall 222 and is also in fluid communication with the first hollow socket 224.
  • the second housing member 214 has a second end portion 230 and a second side
  • second side wall 232 cooperate to define a second hollow socket 234 for receiving a second end of the filter element 26 therein.
  • the second side wall has an edge 235 defining a second mating surface 238, with a second shape, opposite the second end wall 230.
  • the second housing member 214 has a second aperture 231 formed
  • the second aperture 231 is in fluid communication
  • the second aperture 231 may form a bypass outlet channel
  • the second mating surface 238 corresponds to, and is alignable with the first mating
  • the seam 215 is disposed in a skewed orientation with respect to a plane which
  • the seam 215 is disposed substantially coincident
  • the seam 215 is disposed along a plane P offset 30 degrees
  • the depicted filter housing 210 has a substantially kidney-shaped

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • External Artificial Organs (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A hollow plastic filter housing which is assembled from multiple parts, in which two primary housing members are alignable along a seam, and wherein the seam is disposed in a skewed orientation with respect to a longitudinal axis of the housing. The filter housing includes a first housing member and a second housing member which is attachably alignable with the first housing member. The first and second housing members are abuttingly aligned and joined together along a weld seam which is skewed with respect to a longitudinal axis of the housing. The weld seam may be disposed at an angle or alternatively, may be curved and may include corresponding alignment structures.

Description

PLASTIC FILTER HOUSING HAVING A WELD SEAM SKEWED WITH REGARD TO A PLANE NORMAL TO THE LONGITUDUINAL AXIS OF THE HOUSING
BACKGROUND OF THE INVENTION
1. Field of the invention
The present invention relates to a hollow molded plastic housing, formed from multiple
parts, in which two parts intersect at, and are joined along a weld seam. More particularly, the present invention relates to a molded plastic housing of the type described and having a skewed
weld seam, that is, having a weld seam which does not coincide with any plane perpendicular to
a longitudinal axis of the assembly.
2. Description of the Background Art
Many different types of molded plastic housings are known and in use today. Plastic is
increasingly a material of choice in modern manufacturing. As an example, certain plastic filter
housings have been known and made of multiple parts which are glued or welded together around a filter element.
For example, many commercially available disposable in-line fuel filters include a plastic
housing with two generally cup-shaped sections, which are joined at the open ends thereof at a
symmetrical weld seam. This known type of fuel filter also has relatively narrow inlet and outlet tubes extending outwardly away from opposite ends of the housing.
One example of a fuel filter with a housing according to this known design is given in
U.S. patent number 5,076,920.
A need still exists in the art for a plastic housing made in multiple pieces in which the number of pieces is kept as low as possible.
A continuing need in the filter industry also exists for innovative filter designs, and for
economies of manufacturing.
SUMMARY OF THE INVENTION The present invention provides a hollow plastic filter housing which is assembled from
multiple parts, in which two primary housing members are alignable along a seam, and wherein
the seam is disposed in a skewed orientation with respect to a longitudinal axis of the housing.
A filter housing according to the present invention, generally, includes a first housing member
and a second housing member which is alignable with the first housing member, and is provided
for attachment thereto .
Accordingly, it is an object of the present invention to provide a plastic housing, formed
from multiple pieces, in which two complimentary primary pieces are joined along a weld seam
which is skewed from the orthogonal, to allow the housing to be made in fewer pieces than
would otherwise be possible. For a more complete understanding of the present invention, the reader is referred to the
following detailed description section, which should be read in conjunction with the
accompanying drawings. Throughout the following detailed description and in the drawings, like
numbers refer to like parts.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is an assembled side plan view of a fuel filter housing according to a first
embodiment of the present invention;
Figure 2 is an exploded side plan view of a fuel filter housing according to the first embodiment of the present invention;
Figure 3 is an end plan view of a first housing member which is a first component of the
housing of Figures 1-2;
Figure 4 is an end plan view of a second housing member which is a second component
of the housing of Figures 1 -2 ;
Figure 5 is an exploded top plan view of a fuel filter which includes the housing of Figure
2 as a component thereof;
Figure 6 is an assembled side plan view of a fuel filter housing according to a second
embodiment of the present invention;
Figure 7 is an exploded side plan view of a fuel filter housing according to the second
embodiment of the present invention;
Figure 8 is a perspective view of a first housing member which is a first component of the
housing of Figures 6-7;
Figure 9 is an internal end plan view of a second housing member which is a second
component of the housing of Figures 6-7, showing the interior thereof; and
Figure 10 is an exploded top plan view of the housing of Figures 6-7.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
First Preferred Embodiment Referring now to Figures 1-2 of the drawings, a fuel filter housing, in accordance with a
first embodiment of the present invention, is shown generally at 10. The housing 10 is made up of two complimentary housing members 12, 14 joined together as an integral unit. The first and second housing members 12, 14 share a common longitudinal axis 16 (Figure 5). As seen in the end views of Figures 3 and 4, the housing 10, in the depicted embodiment, has a substantially kidney-shaped outline and cross-sectional shape.
The housing members are connected and sealingly joined together along a seam 15. In
the practice of the present invention, the seam 15 is skewed, away from alignment with a plane
transverse to the longitudinal axis 16 of the housing 10, to allow the first housing member 12 to
be made with an external flow tube 18, formed as an integral part thereof, in a single molding operation.
The first housing member 12 has a first end portion 20 and a first side wall 22 integrally
formed with, and extending away from the first end portion. The first end portion 20 and the first
side wall 22 cooperate to define a first hollow socket 24, for receiving one end of a filter element 26 therein. As best seen in Figure 5, the first housing member has a first aperture 21 formed
through the first end portion 20 thereof. The first aperture 21 is in fluid communication with the
first hollow socket 24. The first aperture 21 may form an outlet for the housing 10.
The first side wall 22 has an edge 25 defining a first mating surface 28, with a first shape,
opposite the first end wall 20. The external flow tube 18 extends outwardly away from the first
side wall 22, and is also in fluid communication with the first hollow socket 24.
In a complimentary fashion to that discussed above in connection with the first housing
member 12, the second housing member 14 has a second end portion 30 and a second side wall
32 extending away from the second end portion. The second end portion 30 and the second side
wall 32 cooperate to define a second hollow socket 34 for receiving a second end of the filter element 26 therein. The second side wall has an edge 35 defining a second mating surface 38, with a second shape, opposite the second end wall 30.
Most preferably, the second housing member 14 has a second aperture 31 formed through the second end portion 30 thereof. The second aperture 31 is in fluid communication with the
second hollow socket 34. The second aperture 31 may form a bypass outlet channel for the
housing 10.
The second mating surface 38 corresponds to, and is alignable with the first mating
surface 28, to define the seam 15 between the first and second housing members.
As noted, the seam 15 is disposed in a skewed orientation with respect to a plane which is
transverse to the longitudinal axis 16 of the housing.
In the embodiment of Figures 1-5, the seam 15 is curvilinear and non-planar. The seam
15 is somewhat free-form in shape, including curved portions. Also in this embodiment, the first
mating surface 28 includes a protrusion which fits into a notch 39 of the second mating surface
38, so that there is only one correct way to align the first and second housing members 12, 14.
The seam 15 may be symmetrical or asymmetrical, as desired. Second Preferred Embodiment
Referring now to Figures 6-10 of the drawings, a fuel filter housing, in accordance with a
second embodiment of the present invention, is shown generally at 210. The housing 210 is made up of two complimentary housing members 212, 214 joined together as an integral unit. The first
and second housing members 212, 214 share a common longitudinal axis 216 (Figure 10). As
seen best in the interior view of the first housing member 212 in Figure 9, the housing 210, in the
second depicted embodiment, has a substantially kidney-shaped outline and cross-sectional
shape. The housing members 212, 214 are connected and sealingly joined together along a seam 215. In the practice of the present invention, the seam 215 is skewed, away from the orthogonal.
In other words, the seam 215 is skewed out of alignment with a plane transverse to the
longitudinal axis 216 of the housing 210, to allow the first housing member 212 to be made with an external flow tube 218, formed as an integral part thereof, in a single molding operation.
The housing 210 according to the second depicted embodiment is substantially identical
to housing 10 according to the first embodiment, except for the difference in the shapes of the
first and second housing members at the respective seams 15, 215.
In the second embodiment of the housing 210, he first housing member 212 has a first
end portion 220 and a first side wall 222 integrally formed with, and extending away from the
first end portion. The first end portion 220 and the first side wall 222 cooperate to define a first
hollow socket 224, for receiving one end of a filter element 26 therein. (The filter element is the
same as the element 26 shown in Figure 5). As best seen in Figure 8, the first housing member
220 has a first aperture 221 formed through the first end portion 220 thereof. The first aperture
221 is in fluid communication with the first hollow socket 224. The first aperture 221 may form
an outlet for the housing 210.
The first side wall 222 has an edge 225 defining a first mating surface 228, with a first
shape, opposite the first end wall 220. The external flow tube 218 extends outwardly away from
the first side wall 222, and is also in fluid communication with the first hollow socket 224.
In a complimentary fashion to that discussed above in connection with the first housing member 212, the second housing member 214 has a second end portion 230 and a second side
wall 232 extending away from the second end portion. The second end portion 230 and the
second side wall 232 cooperate to define a second hollow socket 234 for receiving a second end of the filter element 26 therein. The second side wall has an edge 235 defining a second mating surface 238, with a second shape, opposite the second end wall 230.
Most preferably, the second housing member 214 has a second aperture 231 formed
through the second end portion 230 thereof. The second aperture 231 is in fluid communication
with the second hollow socket 234. The second aperture 231 may form a bypass outlet channel
for the housing 210.
The second mating surface 238 corresponds to, and is alignable with the first mating
surface 228, to define the seam 215 between the first and second housing members 212, 214,
respectively.
As noted, the seam 215 is disposed in a skewed orientation with respect to a plane which
is transverse to the longitudinal axis 16 of the housing.
In the embodiment of Figures 6-10, the seam 215 is disposed substantially coincident
with a plane P (Figure 6), which intersects the longitudinal axis 216 of the housing 210 at an
angle. In the illustrated embodiment, the seam 215 is disposed along a plane P offset 30 degrees
from the orthogonal, as shown.
As best seen in Figure 9, the depicted filter housing 210 has a substantially kidney-shaped
cross-section.
Although the present invention has been described herein with respect to a preferred
embodiment thereof, the foregoing description is intended to be illustrative, and not restrictive.
Those skilled in the art will realize that many modifications of the preferred embodiment could
be made which would be operable. All such modifications which are within the scope of the claims are intended to be within the scope and spirit of the present invention.

Claims

Having, thus, described the invention, what is claimed is:
1. A hollow filter housing formed from a plastic material and having a longitudinal axis,
the filter housing comprising:
a first housing member having a first end portion and a first side wall extending away
from the first end portion, the first end portion and the first side wall cooperating to define a first
hollow socket, the first side wall having an edge defining a first mating surface with a first shape
opposite the first end wall; a second housing member having a second end portion and a second side wall extending
away from the second end portion, the second end portion and the second side wall cooperating
to define a second hollow socket, the second side wall having an edge defining a second mating
surface with a second shape opposite the second end wall; wherein the second mating surface corresponds to, and is alignable with the first mating
surface to define a seam between the first and second housing members;
wherein the seam is disposed in a skewed orientation with respect to the longitudinal axis
of the housing.
2. The filter housing of claim 1, wherein the first housing member comprises an integral
tube section extending outwardly from the first side wall and in fluid communication with the
first hollow socket.
3. The filter housing of claim 1, wherein the seam is disposed substantially coinciding with a plane which intersects the housing longitudinal axis at an angle.
4. The filter housing of claim 1, wherein the seam is non-planar.
5. The filter housing of claim 1, wherein the housing has a substantially kidney-shaped
cross-section.
6. The filter housing of claim 1, wherein the first housing member has a first aperture
formed in the first end portion thereof in fluid communication with the first hollow socket.
7. The filter housing of claim 1, wherein the second housing member has a second
aperture formed in the second end portion thereof in fluid communication with the second hollow
socket.
8. A hollow filter housing formed from a plastic material and having a longitudinal axis,
the filter housing comprising: a first housing member having a first end portion and a first side wall extending away
from the first end portion, the first end portion and the first side wall cooperating to define a first
hollow socket, the first side wall having an edge defining a first mating surface with a first shape
opposite the first end wall; the first housing member having a first aperture formed in the first end portion thereof in fluid communication with the first hollow socket, the first housing member further having an integral tube section extending outwardly
from the first side wall and in fluid communication with the first hollow socket;
a second housing member having a second end portion and a second side wall extending away from the second end portion, the second end portion and the second side wall cooperating
to define a second hollow socket, the second side wall having an edge defining a second mating
surface with a second shape opposite the second end wall;
the second housing member having a second aperture formed in the
second end portion thereof in fluid communication with the second hollow socket; wherein the second mating surface corresponds to, and is alignable with the first mating
surface to define a seam between the first and second housing members;
and further wherein the seam is disposed in a skewed orientation with respect to the
longitudinal axis of the housing.
9. The filter housing of claim 8, wherein the housing is substantially kidney-shaped in
cross section.
10. A fuel filter comprising the filter housing of claim 1 with a filter element disposed
therein between the first and second housing members.
PCT/US2001/015493 2000-05-15 2001-05-14 Plastic filter housing having a weld seam skewed with regard to a plane normal to the longitudinal axis of the housing Ceased WO2001087455A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002408744A CA2408744A1 (en) 2000-05-15 2001-05-14 Plastic filter housing having a weld seam skewed with regard to a plane normal to the longitudinal axis of the housing
DE60109155T DE60109155T2 (en) 2000-05-15 2001-05-14 PLASTIC FILTER BOX WITH A WELDING THAT IS SWEEP TO THE HOUSING AXLE
EP01935459A EP1286742B1 (en) 2000-05-15 2001-05-14 Plastic filter housing having a weld seam skewed with regard to the longitudinal axis of the housing
MXPA02011278A MXPA02011278A (en) 2000-05-15 2001-05-14 Plastic filter housing having a weld seam skewed with regard to a plane normal to the longitudinal axis of the housing.
AT01935459T ATE289849T1 (en) 2000-05-15 2001-05-14 FILTER HOUSING MADE OF PLASTIC WITH A WELD SEAM THAT IS OBLIQUE TO THE LONGITUDINAL AXIS OF THE HOUSING
JP2001583909A JP2003533341A (en) 2000-05-15 2001-05-14 Plastic filter housing with a weld seam oblique to a plane perpendicular to the housing longitudinal axis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/705,961 US6651823B1 (en) 2000-05-15 2000-05-15 Plastic filter housing formed from multiple sections and having a skewed weld seam, and filter incorporating same
US09/705,961 2000-05-15

Publications (1)

Publication Number Publication Date
WO2001087455A1 true WO2001087455A1 (en) 2001-11-22

Family

ID=24835641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/015493 Ceased WO2001087455A1 (en) 2000-05-15 2001-05-14 Plastic filter housing having a weld seam skewed with regard to a plane normal to the longitudinal axis of the housing

Country Status (9)

Country Link
US (1) US6651823B1 (en)
EP (1) EP1286742B1 (en)
JP (1) JP2003533341A (en)
AT (1) ATE289849T1 (en)
CA (1) CA2408744A1 (en)
DE (1) DE60109155T2 (en)
ES (1) ES2236233T3 (en)
MX (1) MXPA02011278A (en)
WO (1) WO2001087455A1 (en)

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USD654566S1 (en) * 2011-09-15 2012-02-21 Whirlpool Corporation Filter unit
USD654562S1 (en) * 2011-09-15 2012-02-21 Whirlpool Corporation Filter unit
USD655377S1 (en) * 2011-09-15 2012-03-06 Whirlpool Corporation Filter unit
USD654564S1 (en) * 2011-09-15 2012-02-21 Whirlpool Corporation Filter unit
USD655378S1 (en) * 2011-09-15 2012-03-06 Whirlpool Corporation Filter unit
USD654565S1 (en) * 2011-09-15 2012-02-21 Whirlpool Corporation Filter unit
USD654560S1 (en) * 2011-09-15 2012-02-21 Whirlpool Corporation Filter unit
USD654559S1 (en) * 2011-09-15 2012-02-21 Whirlpool Corporation Filter unit
USD654563S1 (en) * 2011-09-15 2012-02-21 Whirlpool Corporation Filter unit
USD654561S1 (en) * 2011-09-15 2012-02-21 Whirlpool Corporation Filter unit

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Also Published As

Publication number Publication date
US6651823B1 (en) 2003-11-25
ATE289849T1 (en) 2005-03-15
EP1286742A1 (en) 2003-03-05
EP1286742B1 (en) 2005-03-02
DE60109155D1 (en) 2005-04-07
MXPA02011278A (en) 2003-04-25
JP2003533341A (en) 2003-11-11
ES2236233T3 (en) 2005-07-16
DE60109155T2 (en) 2006-04-13
CA2408744A1 (en) 2001-11-22

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