US3595398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter assembly having a replaceable filter element
Assignee: Fram Corp
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Filing: 1969-11-05
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Granted: 1971-07-27
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Expires: 1989-11-05
Abstract
Abstract Filter assembly in which filter element is installed through opening in side of housing, and a seal between an end of the filter element and the adjacent housing wall prevents fluid from bypassing the filter element.
Inventors
- 👤 Donald J Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:14
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; B01D2201/00; B01D2201/30; B01D2201/301; B01D2201/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
201 words
A filter assembly, comprising a filter element with inlet and outlet portions, a housing having a pair of end walls, a lateral wall extending between said end walls, and an inlet and an outlet respectively in communication with said inlet and outlet portions when said filter is secured in said housing, and a seal member disposed between one end of said filter element and the adjacent said end wall of said housing, said filter element being movable in a direction having at least a component axial of said housing, to cause said seal member to provide an effective seal between said end of said element and said adjacent end wall to prevent fluid flow through said assembly from bypassing said filter element, said housing having an opening in said lateral wall to admit said filter element, a door for said opening, and means including a second member adjacent the other end of said element constructed and arranged to control the axial position of said filter element, at least one of said second member and said element being arranged for movement relative to each other transverse to the axis of said housing to cause said seal member to provide said effective seal.
Claim 2
Dependent Claim
201 words
A filter assembly, comprising a filter element with inlet and outlet portions, a housing having a pair of end walls, a lateral wall extending between said end walls, and an inlet and an outlet respectively in communication with said inlet and outlet portions when said filter is secured in said housing, and a seal member disposed between one end of said filter element and the adjacent said end wall of said housing, said filter element being movable in a direction having at least a component axial of said housing, to cause said seal member to provide an effective seal between said end of said element and said adjacent end wall to prevent fluid flow through said assembly from bypassing said filter element, said housing having an opening in said lateral wall to admit said filter element, a door for said opening, and means including a second member adjacent the other end of said element constructed and arranged to control the axial position of said filter element, at least one of said second member and said element being arranged for movement relative to each other transverse to the axis of said housing to cause said seal member to provide said effective seal.
Claim 3
Dependent Claim
11 words
The assembly of claim 1 wherein said second member is movable.
Claim 4
Dependent Claim
36 words
The assembly of 2 wherein said second member is an annular clamping ring between the base of said housing and said element, and said ring is movable between positions spaced angularly with respect to said axis.
Claim 5
Dependent Claim
36 words
The assembly of 2 wherein said second member is an annular clamping ring between the base of said housing and said element, and said ring is movable between positions spaced angularly with respect to said axis.
Claim 6
Dependent Claim
70 words
The assembly of claim 3 wherein said ring includes ramps arranged to mate with corresponding ramps of the base of said housing in one of the angularly spaced positions, the corresponding pairs of ramps being unmated in the other of said angularly spaced positions, forcing said ring and said element axially away from said base and forcing said seal into sealing relationship with said end and said adjacent end wall.
Claim 7
Dependent Claim
59 words
The assembly of claim 4 wherein each said ramp of said base includes an inclined portion and a flat portion; and each said ramp of said ring includes a first inclined portion of slope equal to said inclined portion of said base, and a second inclined portion between upper and lower ridges respectively contacting said base and sAid element.
Claim 8
Dependent Claim
21 words
The assembly of claim 5 wherein said second inclined portion has a slope steeper than that of said first inclined portion.
Claim 9
Dependent Claim
36 words
The assembly of claim 3 wherein said base has a cylindrical flange with a pair of notches, sand ring has a tab which cooperates with said notches to fix said ring in its respective said positions.
Claim 10
Dependent Claim
23 words
The assembly of claim 7 wherein said housing, except for said base, is split and hinged to form said opening and said door.
Claim 11
Dependent Claim
23 words
The assembly of claim 4 wherein said ramps are in a recess in said base and terminate below a sidewall of said recess.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |