Patent US3280832A successfully refreshed from Google Patents.
US3280832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cycling valve
Assignee: RETEC Inc
•
Filing: 1963-11-18
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Granted: 1966-10-25
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Expires: 1983-11-18
Abstract
No abstract record available.
Inventors
- 👤 Henry L Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:32
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/021; Y; Y10; Y10S; Y10S128/00; Y10S128/10; Y10S137/00; Y10S137/908; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/224; Y10T137/2245; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7841
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A REVERSING VALVE FOR COUPLING WITH AN EXTERNAL FILL AND DUMP FLUID CAPACITANCE OF SUBSTANTIALLY LIMITED CAPACITY COMPRISING AN INLET NOZZLE, A FLOW DIVIDER IN FRONT OF SAID NOZZLE, A PAIR OF DIVERGING BRANCH PASSAGEWAYS ON OPPOSITE SIDES OF SAID DIVIDER, ONE OF SAID BRANCHES TERMINATING IN AN OUTLET AND THE OTHER BRANCH TERMINATING IN A CONNECTION FOR SAID CAPACITANCE, A CONSTANTLY OPERATIVE, UNIDIRECTIONAL BIASING JET ORIFICE ADJACENT SAID INLET NOZZLE ARRANGED TO DIVERT THE NOZZLE FLOW INTO SAID CAPACITANCE BRANCH, AND AN OPENING IN THE WALL OF SAID CAPACITANCE BRANCH OPPOSITE SAID DIVIDER SUPPLYING SAID BIASING JET ORIFICE WITH FLUID FROM SAID CAPACITANCE BRANCH, SAID INLET NOZZLE CONSTITUTING THE ONLY FUNCTIONAL SOURCE OF FLUID TO SAID VALVE AND SAID BIASING JET ORIFICE BEING THE ONLY BIASING JET ORIFICE IN THE VALVE.
Claim 2
Dependent Claim
132 words
A REVERSING VALVE FOR COUPLING WITH AN EXTERNAL FILL AND DUMP FLUID CAPACITANCE OF SUBSTANTIALLY LIMITED CAPACITY COMPRISING AN INLET NOZZLE, A FLOW DIVIDER IN FRONT OF SAID NOZZLE, A PAIR OF DIVERGING BRANCH PASSAGEWAYS ON OPPOSITE SIDES OF SAID DIVIDER, ONE OF SAID BRANCHES TERMINATING IN AN OUTLET AND THE OTHER BRANCH TERMINATING IN A CONNECTION FOR SAID CAPACITANCE, A CONSTANTLY OPERATIVE, UNIDIRECTIONAL BIASING JET ORIFICE ADJACENT SAID INLET NOZZLE ARRANGED TO DIVERT THE NOZZLE FLOW INTO SAID CAPACITANCE BRANCH, AND AN OPENING IN THE WALL OF SAID CAPACITANCE BRANCH OPPOSITE SAID DIVIDER SUPPLYING SAID BIASING JET ORIFICE WITH FLUID FROM SAID CAPACITANCE BRANCH, SAID INLET NOZZLE CONSTITUTING THE ONLY FUNCTIONAL SOURCE OF FLUID TO SAID VALVE AND SAID BIASING JET ORIFICE BEING THE ONLY BIASING JET ORIFICE IN THE VALVE.
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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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |