US4049406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid filter housing and assembly
Assignee: American Air Filter Co Inc
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Filing: 1976-04-23
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Granted: 1977-09-20
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Expires: 1996-04-23
Abstract
Abstract A fluid filter housing and assembly therefor including a housing with a flow-through inlet and a flow-through outlet, the housing having channels of U-shaped cross section with open tops extending around the perimeter of the flow-through inlet to receive filter assemblies therein, the channels having fluid filtering material therein, the filter assemblies having continuous downwardly extending members along the outer periphery thereof, the downwardly extending members being received by the channels whereby gases passing around the filter assemblies pass through the filtering material so that leakage of fluids around the sealing between the filter assemblies and the housing are treated by the filter material in the seal prior to passing to the housing outlet.
Inventors
- 👤 Richard D. Rivers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:59
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; B; B01; B01D; B01D29/00; B01D29/01; B01D29/11; B01D29/117; B01D29/50; B01D29/52; B01D29/56; B01D29/88; B01D29/90; B01D29/902; B01D29/96; B01D46/00; B01D46/30; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0446; B01D2253/00; B01D2253/10; B01D2253/102; B01D2257/00; B01D2257/93; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40084
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A fluid filter housing and assembly comprising: a housing having a flow-through inlet and a flow-through outlet therein; said housing having a channel of U-shaped cross section with an open top extending along the inner periphery of said flow-through inlet, and including fluid filtering material therein; and, a replaceable filter assembly disposed within said housing in flow-through communication with said inlet and said outlet, said filter assembly having a continuous downwardly extending member along the outer periphery thereof, said member being received by said U-shaped channel whereby gases passing around said filter assembly pass through said filtering material in said U-shaped channel.
Claim 2
Dependent Claim
102 words
A fluid filter housing and assembly comprising: a housing having a flow-through inlet and a flow-through outlet therein; said housing having a channel of U-shaped cross section with an open top extending along the inner periphery of said flow-through inlet, and including fluid filtering material therein; and, a replaceable filter assembly disposed within said housing in flow-through communication with said inlet and said outlet, said filter assembly having a continuous downwardly extending member along the outer periphery thereof, said member being received by said U-shaped channel whereby gases passing around said filter assembly pass through said filtering material in said U-shaped channel.
Claim 3
Dependent Claim
21 words
The fluid filter housing and assembly of claim 1 wherein said channel of U-shaped cross section defines a rectangular-shaped open area.
Claim 4
Dependent Claim
46 words
The fluid filter housing and assembly of claim 2, at least one channel having fluid filtering material therein extending between two opposed sides of said rectangular-shaped open area to define a plurality of rectangular-shaped open areas, each rectangular-shaped open area receiving a replaceable filter assembly therein.
Claim 5
Dependent Claim
38 words
The fluid filter housing and assembly of claim 1, said housing disposed for vertical flow, said flow-through inlet extending in a vertical direction and said flow-through outlet extending in a vertical direction in substantial alignment with said inlet.
Claim 6
Dependent Claim
144 words
The fluid filter housing and assembly of claim 1, said housing being disposed for horizontal flow, said inlet extending horizontally and said outlet extending horizontally, said housing including a first vertically extending baffle member disposed across said inlet from the bottom of said housing to a preselected distance spaced from a top of said housing and a second vertically extending baffle member disposed across said outlet from said top of said housing to a preselected distance spaced from said bottom of said housing, the upper extremity of said first baffle and the lower extremity of said second baffle being in spaced alignment, said channels containing fluid filtering material therein and extending along said upper extremity of said first baffle, the side walls of said housing, and said lower extremity of said second baffle thereby defining an open area to receive said filter element therein.
Claim 7
Dependent Claim
19 words
The fluid filter housing and assembly of claim 5, said replaceable filter assembly including filter elements extending vertically upward.
Claim 8
Dependent Claim
21 words
The fluid filter housing and assembly of claim 5, said replaceable filter assembly including filter elements extending in a horizontal position.
Claim 9
Dependent Claim
66 words
The fluid filter housing and assembly of claim 7, said filter assembly including a vertically extending front wall disposed between said first baffle and said filter elements, said front wall being in communication with said channel, said filter elements having inlets communicating with aligned openings in a vertically extending plate member, said front wall and said plate member defining a plenum for receiving a fluid therein.
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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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |