US3870490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter and seal
Assignee: TGL ACQUISITION CORP A FL CORP
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Filing: 1974-04-29
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Granted: 1975-03-11
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Expires: 1994-04-29
Abstract
Abstract A filter and seal is disclosed in which a filter having a labyrinth like complex of filter media is surrounded by a generally rectangular frame. Secured to the marginal edges of the frame and extending from said edges is a gasket formed of a generally cellular compressable material, the outer reaches of which have a plurality of tongues and grooves. The tongues and grooves are filled with an inert stable grease, and then the filter unit is clampingly engaged between opposed seal support members which serve the two-fold purpose of locking the filter in place, and compressing the tongues and the inert stable grease to thereby effect a substantially impervious seal to microorganisms of the character which are commonly filtered by such a medium.
Inventors
- 👤 Jerome J Landy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:42
CPC Classifications
B; B01; B01D; B01D50/00; Y; Y10; Y10S; Y10S277/00; Y10S277/918
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
125 words
A filter and seal, said filter having a frame periphery with marginal edges to be secured to a support, said seal comprising, in combination: a gasket body of resilient material, a plurality of tongues on one face of said gasket body, a plurality of grooves defined between said tongues on said gasket body, means for securing said gasket body in sealed adhesive relationship to the filter frame, and a sealant of inert stable grease-like material in the grooves defined between said tongues, whereby, upon compressing the gasket members against the sealant in compressive relationship to the support means for holding the filter, a seal is defined between the interface of the tongues of the gasket and the support means which is wetted by the sealant.
Claim 2
Dependent Claim
125 words
A filter and seal, said filter having a frame periphery with marginal edges to be secured to a support, said seal comprising, in combination: a gasket body of resilient material, a plurality of tongues on one face of said gasket body, a plurality of grooves defined between said tongues on said gasket body, means for securing said gasket body in sealed adhesive relationship to the filter frame, and a sealant of inert stable grease-like material in the grooves defined between said tongues, whereby, upon compressing the gasket members against the sealant in compressive relationship to the support means for holding the filter, a seal is defined between the interface of the tongues of the gasket and the support means which is wetted by the sealant.
Claim 3
Dependent Claim
125 words
A filter and seal, said filter having a frame periphery with marginal edges to be secured to a support, said seal comprising, in combination: a gasket body of resilient material, a plurality of tongues on one face of said gasket body, a plurality of grooves defined between said tongues on said gasket body, means for securing said gasket body in sealed adhesive relationship to the filter frame, and a sealant of inert stable grease-like material in the grooves defined between said tongues, whereby, upon compressing the gasket members against the sealant in compressive relationship to the support means for holding the filter, a seal is defined between the interface of the tongues of the gasket and the support means which is wetted by the sealant.
Claim 4
Dependent Claim
125 words
A filter and seal, said filter having a frame periphery with marginal edges to be secured to a support, said seal comprising, in combination: a gasket body of resilient material, a plurality of tongues on one face of said gasket body, a plurality of grooves defined between said tongues on said gasket body, means for securing said gasket body in sealed adhesive relationship to the filter frame, and a sealant of inert stable grease-like material in the grooves defined between said tongues, whereby, upon compressing the gasket members against the sealant in compressive relationship to the support means for holding the filter, a seal is defined between the interface of the tongues of the gasket and the support means which is wetted by the sealant.
Claim 5
Dependent Claim
44 words
The filter and seal of claim 1, further including at least three tongues, the outer of said tongues being larger than the inner of said tongues to define a more complete seal at the exterior portions of the gasket to retain the sealant therebetween.
Claim 6
Dependent Claim
18 words
The filter and seal of claim 1, said gasket material being formed of a closed cellular neoprene material.
Claim 7
Dependent Claim
27 words
The filter and seal of claim 3, pressure clamping means for securing the support means against the wetted interface between the gasket tongues and the support member.
Claim 8
Dependent Claim
50 words
The filter and seal of claim 1, pressure clamping means cooperating with said support means to permit the installation of the seal and its associated filter with a compressive relationship between the gasket body and the support means wetted by the interface between the tongues and face of the support.
Claim 9
Dependent Claim
51 words
The filter and seal of claim 1, further including said tongues comprising five tongues, said five tongues defining therebetween four grooves, the outer two of said tongues being larger than the inner three of said tongues, whereby the outer tongues more effectively seal the sealant therebetween in the grooves thus defined.
Claim 10
Dependent Claim
27 words
The filter and seal of claim 6, pressure clamping means for securing the support means against the wetted interface between the gasket tongues and the support member.
Claim 11
Dependent Claim
23 words
The filter and seal of claim 1, wherein said sealant is a silicone grease of a non-fluid, non-pouring consistency at ambient room temperature.
References Cited (Backward Citations)
US2771156A
Cited
US3032062A
Cited
US3470679A
Cited
US3529406A
Cited
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Cited
US3712631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |