US3294030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive displacement syrup pump
Assignee: Dole Valve Co
•
Filing: 1964-12-03
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Granted: 1966-12-27
•
Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 William L Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/06; F04B43/073; A; A47; A47J; A47J31/00; A47J31/44; A47J31/46; A47J31/468; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4418; F01; F01L; F01L25/00; F01L25/08; F04B9/00; F04B9/08; F04B9/10; F04B9/103; F04B9/107; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/86614
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A DISPLACEMENT PUMP COMPRISING A BODY MEMBER HAVING A CAVITY THEREIN, ONE END OF SAID BODY MEMBER HAVING A VALVE CHAMBER THEREIN AND A PAIR OF PASSAGES EACH EXTENDING FROM A RESPECTIVE END OF SAID VALVE CHAMBER, A VALVE MEMBER DISPOSED IN SAID VALVE CHAMBER, THE VALVE CHAMBER BEING IN FLUID COMMUNICATION WITH ONE END OF SAID CAVITY, A FIRST BIASING MEANS FOR BIASING SAID VALVE MEMEBER TO ONE POSITION OF SEALING ENGAGEMENT WITH ONE OF SAID PASSAGES, MEANS FOR REMOVING THE FORCE OF SAID FIRST BIAS MEANS ACTING UPON SAID VALVE MEMBER,
Claim 2
Dependent Claim
93 words
A DISPLACEMENT PUMP COMPRISING A BODY MEMBER HAVING A CAVITY THEREIN, ONE END OF SAID BODY MEMBER HAVING A VALVE CHAMBER THEREIN AND A PAIR OF PASSAGES EACH EXTENDING FROM A RESPECTIVE END OF SAID VALVE CHAMBER, A VALVE MEMBER DISPOSED IN SAID VALVE CHAMBER, THE VALVE CHAMBER BEING IN FLUID COMMUNICATION WITH ONE END OF SAID CAVITY, A FIRST BIASING MEANS FOR BIASING SAID VALVE MEMEBER TO ONE POSITION OF SEALING ENGAGEMENT WITH ONE OF SAID PASSAGES, MEANS FOR REMOVING THE FORCE OF SAID FIRST BIAS MEANS ACTING UPON SAID VALVE MEMBER,
References Cited (Backward Citations)
US2526331A
Cited
US2506434A
Cited
US2711134A
Cited
US2954737A
Cited
US2868494A
Cited
US2960038A
Cited
US2916051A
Cited
US3004528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |