US4448695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Effluent water filter device and method
Assignee: Individual
•
Filing: 1982-02-19
•
Granted: 1984-05-15
•
Expires: 2002-02-19
Abstract
Abstract An effluent water filter device and method comprised of a cellular grid packed with an activated carbon and enclosed in a housing. The cellular grid is formed of a bacteria retarding material such as stainless steel. The housing is formed of a frame having screens on either side and locking end cap rings. The filter pack may be in any shape either rectangular or cylindrical.
Inventors
- 👤 Edward C. Gordon, Jr.
- 👤 Glen D. Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:09
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/10; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
An effluent filtering system comprising: a pipe section; a plurality of filter pack means serially positioned in said pipe; said filter pack means comprising; grid support means having a plurality of cells; said cells being packed with granular carbon; ring means receiving said grid support means packed with granular carbon; a screen on each side of said ring means; locking end caps on each side of said ring means locking said ring means, screens and grid together thereby forming a filter pack assembly; said grid and ring means being formed of bacterial growth retarding stainless steel; securing means securing said plurality of filter pack means in said pipe section; connecting means for connecting said pipe section with said plurality of filter pack means in an effluent pipe whereby effluent is caused to flow through said series of filter pack means.
Claim 2
Dependent Claim
140 words
An effluent filtering system comprising: a pipe section; a plurality of filter pack means serially positioned in said pipe; said filter pack means comprising; grid support means having a plurality of cells; said cells being packed with granular carbon; ring means receiving said grid support means packed with granular carbon; a screen on each side of said ring means; locking end caps on each side of said ring means locking said ring means, screens and grid together thereby forming a filter pack assembly; said grid and ring means being formed of bacterial growth retarding stainless steel; securing means securing said plurality of filter pack means in said pipe section; connecting means for connecting said pipe section with said plurality of filter pack means in an effluent pipe whereby effluent is caused to flow through said series of filter pack means.
Claim 3
Dependent Claim
37 words
The effluent filtering system according to claim 1 in which said means for securing said filter pack means in said pipe section comprises a recess at one end and a cap ring secured to the opposite end.
Claim 4
Dependent Claim
18 words
The effluent filtering system according to claim 2 including spacer means between each of said filter pack means.
Claim 5
Dependent Claim
50 words
An effluent water filtering method comprising; forming a cellular grid from a bacteria retarding material; packing the cells of said cellular grid with carbon; enclosing said packed cellular grid in a screened housing; positioning a plurality of said carbon packed cellular grids in the path of water to be filtered.
Claim 6
Dependent Claim
50 words
An effluent water filtering method comprising; forming a cellular grid from a bacteria retarding material; packing the cells of said cellular grid with carbon; enclosing said packed cellular grid in a screened housing; positioning a plurality of said carbon packed cellular grids in the path of water to be filtered.
Claim 7
Dependent Claim
19 words
The effluent filtering method according to claim 4 comprising forming said cellular grid from a bacteria retarding stainless steel.
Claim 8
Dependent Claim
17 words
The effluent filtering method according to claim 5 comprising packing said cellular grid with an activated carbon.
Claim 9
Dependent Claim
33 words
The effluent filtering method according to claim 4 comprising; positioning a plurality of carbon packed grids in series in a section of pipe; installing said section of pipe in a water supply pipeline.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |