US3263622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Individual
•
Filing: 1964-06-01
•
Granted: 1966-08-02
•
Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Lewis Tyree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:51
CPC Classifications
F; F04; F04B; F04B7/00; F04B7/0073; F04B15/00; F04B15/06; F04B15/08; F04B19/00; F04B19/02; F04B19/022; F04B53/00; F04B53/10; F04B53/12; F04B53/122; F04B53/16; F04B53/162; F04B53/164; Y; Y10; Y10S; Y10S417/00; Y10S417/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A POSITIVE DISPLACEMENT RECIPROCATING PUMP FOR HANDLING CRYOGENIC LIQUIDS, WHICH PUMP COMPRISES FIRST AND SECOND COOPERATING PUMP MEMBERS WHICH ARE MOVABLE RELATIVE TO EACH OTHER AND WHICH DEFINE A PUMPING CHAMBER, MEANS DISPOSED BETWEEN SAID MEMBERS EFFECTIVE TO SEAL SAID PUMPING CHAMBER, SAID FIRST PUMP MEMBER HAVING A DISCHARGE PASSAGEWAY FORMED THEREIN IN FLUID COMMUNICATION WITH SAID PUMPING CHAMBER, AND DISCHARGE VALVE MEANS CLOSING SAID DISCHARGE PASSAGEWAY, A PORTION OF SAID DISCHARGE PASSAGEWAY BEING LOCATED IN CLOSEE THERMALLY CONDUCTING RELATION TO SAID SEALING MEANS SO THAT HEAT FRICTIONALLY GENERATED BY SAID SEALING MEANS IS ABSORBED BY THE DISCHARGE STREAM OF CRYOGENIC LIQUID AND CARRIED AWAY FROM SAID PUMPING CHAMBER.
Claim 2
Dependent Claim
109 words
A POSITIVE DISPLACEMENT RECIPROCATING PUMP FOR HANDLING CRYOGENIC LIQUIDS, WHICH PUMP COMPRISES FIRST AND SECOND COOPERATING PUMP MEMBERS WHICH ARE MOVABLE RELATIVE TO EACH OTHER AND WHICH DEFINE A PUMPING CHAMBER, MEANS DISPOSED BETWEEN SAID MEMBERS EFFECTIVE TO SEAL SAID PUMPING CHAMBER, SAID FIRST PUMP MEMBER HAVING A DISCHARGE PASSAGEWAY FORMED THEREIN IN FLUID COMMUNICATION WITH SAID PUMPING CHAMBER, AND DISCHARGE VALVE MEANS CLOSING SAID DISCHARGE PASSAGEWAY, A PORTION OF SAID DISCHARGE PASSAGEWAY BEING LOCATED IN CLOSEE THERMALLY CONDUCTING RELATION TO SAID SEALING MEANS SO THAT HEAT FRICTIONALLY GENERATED BY SAID SEALING MEANS IS ABSORBED BY THE DISCHARGE STREAM OF CRYOGENIC LIQUID AND CARRIED AWAY FROM SAID PUMPING CHAMBER.
References Cited (Backward Citations)
US1683617A
Cited
US2598528A
Cited
US2779295A
Cited
US2765625A
Cited
US2855859A
Cited
US3023710A
Cited
US3101057A
Cited
US3137143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |