US3788484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inline fluid filter
Assignee: Coulter Electronics Inc
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Filing: 1971-08-23
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Granted: 1974-01-29
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Expires: 1991-08-23
Abstract
Abstract A fluid filter to be used for inline installation or in systems which are not to be disturbed when it is desired to clean or replace the filter member. An enclosed body has a lateral slot and the filter element is carried by a removable carrier member which is engaged in the slot into filtering position. Seals are provided to prevent leakage when the carrier member is in operative position.
Inventors
- 👤 T Godin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:04
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0002; B01D46/0012; B01D29/00; B01D29/01; B01D29/012; B01D29/62; B01D29/70; B01D29/96; B01D35/00; B01D35/02; B01D46/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
218 words
A fluid filter devIce comprising: A A hollow body with a filtering chamber therein; B means for connecting opposite ends of said body into a fluid line to enable fluid to pass through said filtering chamber; C a lateral slot in said body giving access to said filtering chamber from the exterior of said body; D a slidable carrying member for a filter element and with a central aperture therethrough and a filter element in fluid flow communication with said aperture; E said member being constructed to be inserted through said slot into said body whereby said filter element is arranged transversely of said filtering chamber to require fluid passing through said filtering chamber to pass through said filter element; F said member including a flat portion forming sealing means surrounding said aperture and cooperating with said body to seal said member against leakage of fluid from said body while said filter element is inserted within said slot; G groove means in said body contiguous to said lateral slot circumferentiably surrounding said filter chamber within said body; H resilient ring means positioned within said groove means and in tangential frictional contact with said flat portion of said member to secure said member in filtering position in said body, and I handle means on said filter element carrying member.
Claim 2
Dependent Claim
218 words
A fluid filter devIce comprising: A A hollow body with a filtering chamber therein; B means for connecting opposite ends of said body into a fluid line to enable fluid to pass through said filtering chamber; C a lateral slot in said body giving access to said filtering chamber from the exterior of said body; D a slidable carrying member for a filter element and with a central aperture therethrough and a filter element in fluid flow communication with said aperture; E said member being constructed to be inserted through said slot into said body whereby said filter element is arranged transversely of said filtering chamber to require fluid passing through said filtering chamber to pass through said filter element; F said member including a flat portion forming sealing means surrounding said aperture and cooperating with said body to seal said member against leakage of fluid from said body while said filter element is inserted within said slot; G groove means in said body contiguous to said lateral slot circumferentiably surrounding said filter chamber within said body; H resilient ring means positioned within said groove means and in tangential frictional contact with said flat portion of said member to secure said member in filtering position in said body, and I handle means on said filter element carrying member.
Claim 3
Dependent Claim
70 words
The filter device as claimed in claim 1 wherein said lateral slot opens along a substantial portion of the periphery of said body and communicates with a generally annular space which extends into said body about said filtering chambers, said annular space being defined in part by laterally extending, oppositely facing, spaced apart planes, the distance between said planes being greater than the thickness of said filter element carrying member.
Claim 4
Dependent Claim
135 words
The filter device as claimed in claim 2 wherein said sealing means includes first and second elastomeric sealing members which are fixed respectively to oppositely facing sides of said annular space defined respectively by said planes, each of said sealing members having a portion thereof which extends about said filtering chamber and which projects from one of said planes toward the other of said planes, the distance between said facing projection portions, when said filter element carrying member is removed from said device, being less than the thickness of said filter element carrying member so that when said filter element carrying member is inserted into said annular space, the projection portions will fluid tightly engage and seat against opposite sides of said filter element carrier member and about said filter element in said filtering position.
Claim 5
Dependent Claim
84 words
The filter device as claimed in claim 1 wherein said body comprises first and second identical headers each having a chamber portion therein, each header having an annular planar surface with an annular groove therein, an elastomeric 0-ring disposed in each of said grooves, said headers being secured together with said chamber portions forming said chamber and with said planar surfaces spaced apart to form a generally annular space which is in alignment with said lateral slot opening onto the periphery of said body.
Claim 6
Dependent Claim
42 words
The filter device as claimed in claim 4 including a sleeve, said headers being secured together and spaced apart by said sleeve which encircles and is fixed to the facing ends of said headers, and said sleeve having said lateral slot therein.
Claim 7
Dependent Claim
94 words
The filter device as claimed in claim 4 wherein said planar surfaces are spaced apart a distance greater than the thickness of said filter element carrying member and the distance between said facing 0-rings being less than the thickness of said filter element carrying member befor said filter element carrying member is inserted into said annular space so that upon insertion thereof in said filtering position, said 0-rings will fluid tightly engage and seat against opposite sides of said filter element carrying member and about said filter elemenT in said filter element carrying member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |