US4471497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lavatory filter
Assignee: Individual
•
Filing: 1982-08-20
•
Granted: 1984-09-18
•
Expires: 2002-08-20
Abstract
Abstract A lavatory filter for a sink drainage well is provided and consists of a flat annular ring member having an outer circumference larger than the sink drainage well whereby the flat annular ring member will sit on top of the sink drainage well, an annular dome shaped strainer member affixed at its outer edge to the inner circumference of the flat annular ring member and a plurality of curved leaf springs each one having one end affixed to the inner circumference of the flat annular ring member below the annular dome shaped strainer member and bent downwardly to engage the inner peripheral wall surface of the sink drainage well.
Inventors
- 👤 Aramis R. Riutort
- 👤 George Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:14
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/26; E03C1/264
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
349 words
A lavatory filter for a sink drainage well which comprises: (a) a flat annular ring member having an outer circumference larger than said sink drainage well whereby said flat annular ring member will sit on top of said sink drainage well; (b) an annular dome shaped strainer member affixed at its outer edge to the inner circumference of said flat annular ring member; and (c) means for securing said flat annular ring member to said top of said sink drainage well, wherein said annular dome shaped strainer member is made out of metal mesh material, wherein said means for securing said flat annular ring member to said top of said sink drainage well is a plurality of curved leaf springs each one having one end affixed to said inner circumference of said flat annular ring member below said annular dome shaped strainer member and bent downwardly to engage the inner peripheral wall surface of said sink drainage well, including a means for conforming said flat annular ring member to the contour of the sink, wherein means for conforming said flat annular ring member to the contour of the sink is an annual seal seat member affixed to said outer circumference of said flat annular ring member having a peripheral edge surface inclined inwardly and downwardly, in order to cooperate with the contour of said sink wherein said flat annular ring member further comprises: (a) lower base portion having a plurality of sockets around top surface; and (b) an upper portion having a plurality of projections around bottom surface, each said projection adapted to mate with each said socket on said lower base portion holding said outer edge of said annular dome shaped strainer member in an affixed position, said upper portion also having a plurality of finger grips, each of said finger grip extends beyond said outer circumference of said lower base portion so that outer circumference of said lower base portion so that said upper portion can be removed freeing said outer edge of said annular dome shaped strainer allowing said annular dome shaped strainer to be replaced.
Claim 2
Dependent Claim
349 words
A lavatory filter for a sink drainage well which comprises: (a) a flat annular ring member having an outer circumference larger than said sink drainage well whereby said flat annular ring member will sit on top of said sink drainage well; (b) an annular dome shaped strainer member affixed at its outer edge to the inner circumference of said flat annular ring member; and (c) means for securing said flat annular ring member to said top of said sink drainage well, wherein said annular dome shaped strainer member is made out of metal mesh material, wherein said means for securing said flat annular ring member to said top of said sink drainage well is a plurality of curved leaf springs each one having one end affixed to said inner circumference of said flat annular ring member below said annular dome shaped strainer member and bent downwardly to engage the inner peripheral wall surface of said sink drainage well, including a means for conforming said flat annular ring member to the contour of the sink, wherein means for conforming said flat annular ring member to the contour of the sink is an annual seal seat member affixed to said outer circumference of said flat annular ring member having a peripheral edge surface inclined inwardly and downwardly, in order to cooperate with the contour of said sink wherein said flat annular ring member further comprises: (a) lower base portion having a plurality of sockets around top surface; and (b) an upper portion having a plurality of projections around bottom surface, each said projection adapted to mate with each said socket on said lower base portion holding said outer edge of said annular dome shaped strainer member in an affixed position, said upper portion also having a plurality of finger grips, each of said finger grip extends beyond said outer circumference of said lower base portion so that outer circumference of said lower base portion so that said upper portion can be removed freeing said outer edge of said annular dome shaped strainer allowing said annular dome shaped strainer to be replaced.
References Cited (Backward Citations)
US1494882A
Cited
US1592866A
Cited
US2094286A
Cited
US2518205A
Cited
US2695411A
Cited
US3702013A
Cited
US3742524A
Cited
US3788485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |