US3730217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check valve
Assignee: Motors Liquidation Co
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Filing: 1971-05-19
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Granted: 1973-05-01
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Expires: 1991-05-19
Abstract
Abstract A check valve having an elastic member that provides sealing between a passage that leads to a chamber and a passage that leads from the chamber and further operates to provide check valve operation for directing flow from one of these passages to the chamber and also cooperates with additional check valve structure to direct flow from the chamber to the other passage.
Inventors
- 👤 L Gute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:32
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/109; B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; F04B53/1037; F04B53/1047; F04B53/106; F04B53/1065; F16; F16K; F16K15/00; F16K15/14; F16K15/1401; F16K15/1402; F16K15/144; F16K15/147; F16K15/1472; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7842; Y10T137/7843; Y10T137/7879; Y10T137/788; Y10T137/7882
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
237 words
A check valve arrangement comprising a valve body having a chamber, an inlet passage for directing fluid to said chamber, an outlet passage for directing fluid from said chamber, an elastic valve member having nipple means received in said outlet passage, said nipple means and said valve body having cooperating rib and groove means for securing said valve member to said valve body and also providing sealing between said passages, said nipple means having a valve passage therethrough for connecting said chamber and said outlet passage, said nipple means having lips that normally inherently sealingly engage to close said valve passage and are yieldable to pressure in said valve passage from said chamber to open said valve passage, said valve member having a deflectable portion for normally closing said chamber from said inlet passage to prevent flow from said chamber to said inlet passage and deflectable to open said inlet passage to said chamber to permit flow from said inlet passage to said chamber, said valve body having valve closure means engaging and deflecting said nipple means in a direction transverse to said valve passage to assist in closing said lips to prevent flow from said outlet passage to said chamber and said nipple means deflectable by pressure in said valve passage from said chamber to open said chamber through said valve passage to said outlet passage to permit flow from said chamber to said outlet passage.
Claim 2
Dependent Claim
237 words
A check valve arrangement comprising a valve body having a chamber, an inlet passage for directing fluid to said chamber, an outlet passage for directing fluid from said chamber, an elastic valve member having nipple means received in said outlet passage, said nipple means and said valve body having cooperating rib and groove means for securing said valve member to said valve body and also providing sealing between said passages, said nipple means having a valve passage therethrough for connecting said chamber and said outlet passage, said nipple means having lips that normally inherently sealingly engage to close said valve passage and are yieldable to pressure in said valve passage from said chamber to open said valve passage, said valve member having a deflectable portion for normally closing said chamber from said inlet passage to prevent flow from said chamber to said inlet passage and deflectable to open said inlet passage to said chamber to permit flow from said inlet passage to said chamber, said valve body having valve closure means engaging and deflecting said nipple means in a direction transverse to said valve passage to assist in closing said lips to prevent flow from said outlet passage to said chamber and said nipple means deflectable by pressure in said valve passage from said chamber to open said chamber through said valve passage to said outlet passage to permit flow from said chamber to said outlet passage.
Claim 3
Dependent Claim
256 words
A check valve arrangement comprising a valve body having a chamber, an inlet passage for directing fluid to said chamber, an outlet passage for directing fluid from said chamber, an elastic valve member having nipple means received in said outlet passage, said nipple means and said valve body having cooperating rib and groove means for securing said valve member to said valve body and also providing sealing between said passages, said nipple means having a valve passage therethrough for connecting said chamber and said outlet passage, said nipple means having lips that normally inherently sealingly engage to close said valve passage and are yieldable to pressure in said valve passage from said chamber to open said valve passage, said valve member having a deflectable portion for normally closing said chamber from said inlet passage to prevent flow from said chamber to said inlet passage and deflectable to open said inlet passage to said chamber to permit flow from said inlet passage to said chamber, said valve body having valve closure means extending transverse to said valve passage and said lips into an interference position with said nipple means to externally engage and deflect said nipple means in a direction transverse to said valve passage to assist in closing said lips to prevent flow from said outlet passage to said chamber and said nipple means deflectable by pressure in said valve passage from said chamber to open said chamber through said valve passage to said outlet passage to permit flow from said chamber to said outlet passage.
Claim 4
Dependent Claim
256 words
A check valve arrangement comprising a valve body having a chamber, an inlet passage for directing fluid to said chamber, an outlet passage for directing fluid from said chamber, an elastic valve member having nipple means received in said outlet passage, said nipple means and said valve body having cooperating rib and groove means for securing said valve member to said valve body and also providing sealing between said passages, said nipple means having a valve passage therethrough for connecting said chamber and said outlet passage, said nipple means having lips that normally inherently sealingly engage to close said valve passage and are yieldable to pressure in said valve passage from said chamber to open said valve passage, said valve member having a deflectable portion for normally closing said chamber from said inlet passage to prevent flow from said chamber to said inlet passage and deflectable to open said inlet passage to said chamber to permit flow from said inlet passage to said chamber, said valve body having valve closure means extending transverse to said valve passage and said lips into an interference position with said nipple means to externally engage and deflect said nipple means in a direction transverse to said valve passage to assist in closing said lips to prevent flow from said outlet passage to said chamber and said nipple means deflectable by pressure in said valve passage from said chamber to open said chamber through said valve passage to said outlet passage to permit flow from said chamber to said outlet passage.
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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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |