US3989491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas filter and mounting
Assignee: Individual
•
Filing: 1975-08-18
•
Granted: 1976-11-02
•
Expires: 1995-08-18
Abstract
Abstract A mounting for gaseous fluid filters is disclosed particularly suited for filters of the type which include a rigid box frame within which the filter is carried, the frame having opposite faces open for entrance and exit of the gaseous fluid to be filtered, the mounting including an enclosure with supporting tracks therein for the filter frame, the filter being detachably connected at its upper end to the duct system by a flexible leakproof fabric connection and being sealed at the lower end against leakage.
Inventors
- 👤 Michael E. Pelosi, Jr.
- 👤 Raymond Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:49
CPC Classifications
B; B01; B01D; B01D46/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
139 words
In a mounting for a filter for removing particles from gaseous fluids removably mounted within a cabinet in which the cabinet has enclosing walls with horizontal filter supporting rails therein and fluid inlet and outlet connections and the filter has a rigid surrounding frame and exposed upper and lower horizontal faces the improvement which comprises a flexible transition duct member connected to said rigid frame contiguous to one of said horizontal faces and to one of said fluid connections, and a peripherally disposed gasket member on said rigid frame intermediate the top and bottom thereof for fluid tight engagement with the interiors of said enclosing walls, said filter having the lower horizontal face in supported relation to said filter supporting rails, said filter having the other of said horizontal faces in communication with the other of said fluid connections.
Claim 2
Dependent Claim
139 words
In a mounting for a filter for removing particles from gaseous fluids removably mounted within a cabinet in which the cabinet has enclosing walls with horizontal filter supporting rails therein and fluid inlet and outlet connections and the filter has a rigid surrounding frame and exposed upper and lower horizontal faces the improvement which comprises a flexible transition duct member connected to said rigid frame contiguous to one of said horizontal faces and to one of said fluid connections, and a peripherally disposed gasket member on said rigid frame intermediate the top and bottom thereof for fluid tight engagement with the interiors of said enclosing walls, said filter having the lower horizontal face in supported relation to said filter supporting rails, said filter having the other of said horizontal faces in communication with the other of said fluid connections.
Claim 3
Dependent Claim
22 words
A mounting as defined in claim 1 in which said rigid frame is slidably supported on said frame for insertion and removal.
Claim 4
Dependent Claim
46 words
A mounting as defined in claim 1 in which said cabinet has a duct therein communicating with one of said fluid connections and connected to said transition member, and an expansible and contractible clamping ring is provided for detachably connecting said duct and said transition member.
Claim 5
Dependent Claim
70 words
A mounting as defined in claim 1 in which the members for connecting said transition member to said rigid frame comprise an angle member having a horizontal leg for engagement with the frame and a vertical leg, and a rim member in secured engagement with said frame and having a portion for engagement with said vertical leg for retaining an end of said transition duct with respect to said frame.
Claim 6
Dependent Claim
33 words
A mounting member as defined in claim 4 in which a sealing gasket is interposed in engagement with said end of said transition duct and is retained in position by said rim member.
References Cited (Backward Citations)
US813454A
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US2256145A
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US2473006A
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US3593502A
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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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |