US4493338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washerless faucet
Assignee: Waltec Inc
•
Filing: 1982-12-14
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Granted: 1985-01-15
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Expires: 2002-12-14
Abstract
Abstract Disclosed is a removable cartridge for a fluid valve which uses a simple O-ring to seal with the housing in which the cartridge is received. The valve comprises a body member having an axial inlet opening at one end and at least one transverse outlet opening. A valve seat is secured in the inlet opening and a valve means is positioned in the body member for axial movement toward and away from the seat. The seat extends beyond the body member and has a circumferentially extending groove to receive an O-ring for providing a seal with a housing in which the cartridge is received.
Inventors
- 👤 Sigurdur G. Petursson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:41
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7613; Y10T137/7722; Y10T137/7837; Y10T137/7866; Y10T137/7867; Y10T137/7868
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
207 words
A removable cartridge for a fluid valve comprising a body member having an axial inlet opening at one end and at least one transverse outlet opening, a valve seat secured in said inlet opening, and valve means positioned in said body member for axial movement toward and away from said valve seat, said valve seat including a part extending beyond said body member adapted to receive an O-ring for providing a seal with a housing in which said cartridge is received, wherein said valve means includes a stem portion and a closure portion, said stem portion having male threads cooperating with female threads in said body member whereby rotation of said stem portion moves the valve means axially towards or away from said valve seat, said closure portion being rotatably mounted in said stem portion whereby said stem portion may be rotated without rotating said closure portion when it engages said valve seat, wherein said valve seat comprises an outer metallic portion having a first flat annular seat and an inner annular portion of resilient material providing a second seat and wherein said valve means has an outer flat annular portion engageable with said first seat and a second spherically shaped portion engageable with said second seat.
Claim 2
Dependent Claim
207 words
A removable cartridge for a fluid valve comprising a body member having an axial inlet opening at one end and at least one transverse outlet opening, a valve seat secured in said inlet opening, and valve means positioned in said body member for axial movement toward and away from said valve seat, said valve seat including a part extending beyond said body member adapted to receive an O-ring for providing a seal with a housing in which said cartridge is received, wherein said valve means includes a stem portion and a closure portion, said stem portion having male threads cooperating with female threads in said body member whereby rotation of said stem portion moves the valve means axially towards or away from said valve seat, said closure portion being rotatably mounted in said stem portion whereby said stem portion may be rotated without rotating said closure portion when it engages said valve seat, wherein said valve seat comprises an outer metallic portion having a first flat annular seat and an inner annular portion of resilient material providing a second seat and wherein said valve means has an outer flat annular portion engageable with said first seat and a second spherically shaped portion engageable with said second seat.
Claim 3
Dependent Claim
31 words
A cartridge as claimed in claim 1 wherein said part of said valve seat includes a lip portion to retain said O-ring during removal of said cartridge from said body member.
Claim 4
Dependent Claim
18 words
A cartridge as claimed in claim 1 wherein said stem portion and said closure portion are both brass.
Claim 5
Dependent Claim
219 words
A removable cartridge for a fluid valve comprising a body member having an axial inlet opening at one end and at least one transverse outlet opening, a valve seat secured in said inlet opening, and valve means positioned in said body member for axial movement toward and away from said valve seat, said valve seat including a part extending beyond said body member adapted to receive an O-ring for providing a seal with a housing in which said cartridge is received, wherein said valve means includes a stem portion and a closure portion, said stem portion being secured in said body member for rotational movement but not translational movement and having an internally threaded bore adapted to cooperate with an externally threaded rod on said closure portion, said closure portion being keyed to said body member to prevent it from rotating but to allow it to move longitudinally whereby rotation of said stem portion moves said closure portion towards or away from said valve seat, wherein said valve seat comprises an outer metallic portion having a first flat annular seat and an inner annular portion of resilient material providing a second seat and wherein said valve means has an outer flat annular portion engageable with said first seat and a second spherically shaped portion engageable with said second seat.
Claim 6
Dependent Claim
219 words
A removable cartridge for a fluid valve comprising a body member having an axial inlet opening at one end and at least one transverse outlet opening, a valve seat secured in said inlet opening, and valve means positioned in said body member for axial movement toward and away from said valve seat, said valve seat including a part extending beyond said body member adapted to receive an O-ring for providing a seal with a housing in which said cartridge is received, wherein said valve means includes a stem portion and a closure portion, said stem portion being secured in said body member for rotational movement but not translational movement and having an internally threaded bore adapted to cooperate with an externally threaded rod on said closure portion, said closure portion being keyed to said body member to prevent it from rotating but to allow it to move longitudinally whereby rotation of said stem portion moves said closure portion towards or away from said valve seat, wherein said valve seat comprises an outer metallic portion having a first flat annular seat and an inner annular portion of resilient material providing a second seat and wherein said valve means has an outer flat annular portion engageable with said first seat and a second spherically shaped portion engageable with said second seat.
Claim 7
Dependent Claim
18 words
A cartridge as claimed in claim 4 wherein said stem portion and said closure portion are both brass.
References Cited (Backward Citations)
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US2823006A
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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) | 1988-01-15 | 1988-07-16 | 1989-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-15 | 1992-07-16 | 1993-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-15 | 1996-07-16 | 1997-01-15 | $7700.00 | Window Closed / Lapsed |