US4124361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing device for filter cells
Assignee: American Air Filter Co Inc
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Filing: 1977-05-11
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Granted: 1978-11-07
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Expires: 1997-05-11
Abstract
Abstract A sealing device for a plurality of flow-through filter cells in a filter cell housing including a longitudinally extending toggle joint support member extending through opposed side walls of the housing and a plurality of toggle joints mounted at the knees onto the toggle joint support member, the toggle joints having one end pivotally mounted to the frame of the housing and the other end including engaging means engageable with the filter cells upon longitudinal movement of the support member.
Inventors
- 👤 Alan E. Revell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:13
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/0084; B01D46/0091; B01D46/0098; B01D46/56; B01D46/58; B01D46/88; B01D46/90; B01D2271/00; B01D2271/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
168 words
In a flow-through filter cell support housing adapted to receive and support filter cell means disposed between a dirty gas inlet passage and a clean gas outlet passage with peripheral edges of the filter cell means abutting against an aligned peripheral seal mounted around one of the passages, an improved filter cell sealing and retaining means comprising: a toggle joint support member longitudinally extending through said housing; a plurality of toggle joints spaced apart along the longitudinal axis of said toggle joint support member, each toggle joint having a pair of link members joined together at one end at a knee portion and pivotally connected to said toggle joint support member at said knee portion, and each toggle joint being pivotally mounted at one end of one of its link members to the frame of the filter cell support housing; and, engaging means attached to one end of the other toggle joint link member engageable with the filter cell means upon longitudinal movement of the toggle support member.
Claim 2
Dependent Claim
168 words
In a flow-through filter cell support housing adapted to receive and support filter cell means disposed between a dirty gas inlet passage and a clean gas outlet passage with peripheral edges of the filter cell means abutting against an aligned peripheral seal mounted around one of the passages, an improved filter cell sealing and retaining means comprising: a toggle joint support member longitudinally extending through said housing; a plurality of toggle joints spaced apart along the longitudinal axis of said toggle joint support member, each toggle joint having a pair of link members joined together at one end at a knee portion and pivotally connected to said toggle joint support member at said knee portion, and each toggle joint being pivotally mounted at one end of one of its link members to the frame of the filter cell support housing; and, engaging means attached to one end of the other toggle joint link member engageable with the filter cell means upon longitudinal movement of the toggle support member.
Claim 3
Dependent Claim
52 words
The device according to claim 1 wherein said engaging means comprises a swingably mounted finger pivotally connected to the one end of the other toggle joint link member, said finger swingably engaging said filter cell means and forcing said filter cell means against and into sealing engagement with its aligned peripheral seal.
Claim 4
Dependent Claim
62 words
The device according to claim 1, said toggle joint support member including an elongated flat member having thread means on one end thereof rotatably receiving a threaded end of a rotatably mounted rod, said rod extending through one side of said support housing, said toggle joints being mounted onto said flat member whereby rotation of said rod longitudinally moves said flat member.
Claim 5
Dependent Claim
19 words
The device according to claim 1, said toggle joint support member extending through opposed side walls of said housing.
Claim 6
Dependent Claim
33 words
The device according to claim 1, further comprising a guide link having one end pivotally attached to the frame of the housing and having its other end pivotally connected to said engaging means.
References Cited (Backward Citations)
US3393498A
Cited
US3409315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |