Patent US4058778A successfully refreshed from Google Patents.
Patent US3306209A successfully refreshed from Google Patents.
US3306209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Bendix Corp
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Filing: 1964-03-26
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Granted: 1967-02-28
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Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Henry P Tyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:03
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/2014; F04B1/2035; F04B1/22; F04B1/26; F04B1/30; F04B1/32; F04B1/324; F04B13/00; F04B13/02; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/106; F04B49/00; F04B49/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A MULTI-FLUID PUMP COMPRISING: A FIRST, SECOND AND THIRD PUMP HAVING RESPECTIVE FIRST, SECOND AND THIRD ROTORS, PISTONS AND CAM PLATES; A MEANS TO COLLECTIVELY CONTROL EACH CAM PLATE INCLUDING, A PRESSURE RESPONSIVE MEMBER ARRANGED TO OPERATE ONE OF SAID CAM PLATES, A LINK MEANS TO CONNECT SAID ONE OF SAID CAM PLATES TO EACH OF THE OTHER OF SAID CAM PLATES, AND A SPRING MEANS OPERATIVELY CONNECTED TO SAID CAM PLATES AND LINK MEANS TO OPPOSE SAID PRESSURE RESPONSIVE MEMBER; A CONTROL VALVE ARRANGED TO ACTUATE SAID PRESSURE RESPONSIVE MEMBER; A FIRST PASSAGE MEANS IN SAID PUMP FOR DELIVERING SEPARATE FLUIDS TO EACH OF SAID PUMPS WITH ONE OF SAID PASSAGES ADAPTED TO SUPPLY A FLUID TO COOL THE PUMP BEFORE BEING CIRCULATED BY CENTRIFUGAL FORCE TO THE PUMP PISTONS, AND A SECOND PASSAGE MEANS IN SAID PUMP FOR EXHAUSTING FLUIDS FROM EACH OF SAID PUMP MEANS WITH ONE OF SAID PASSAGES ADAPTED TO INTERMIX A PAIR OF FLUIDS IN A CONSTANT RATIO THROUGHOUT A CONTROL RANGE FOR SAID PUMP; AND A BYPASS MEANS FOR EACH OF SAID FLUIDS OPERATIVELY CONNECTED BETWEEN SAID FIRST AND SECOND PASSAGE MEANS TO PERMIT NORMAL CIRCULATION OF FLUID REGARDLESS OF PUMP OPERATION.
Claim 2
Dependent Claim
199 words
A MULTI-FLUID PUMP COMPRISING: A FIRST, SECOND AND THIRD PUMP HAVING RESPECTIVE FIRST, SECOND AND THIRD ROTORS, PISTONS AND CAM PLATES; A MEANS TO COLLECTIVELY CONTROL EACH CAM PLATE INCLUDING, A PRESSURE RESPONSIVE MEMBER ARRANGED TO OPERATE ONE OF SAID CAM PLATES, A LINK MEANS TO CONNECT SAID ONE OF SAID CAM PLATES TO EACH OF THE OTHER OF SAID CAM PLATES, AND A SPRING MEANS OPERATIVELY CONNECTED TO SAID CAM PLATES AND LINK MEANS TO OPPOSE SAID PRESSURE RESPONSIVE MEMBER; A CONTROL VALVE ARRANGED TO ACTUATE SAID PRESSURE RESPONSIVE MEMBER; A FIRST PASSAGE MEANS IN SAID PUMP FOR DELIVERING SEPARATE FLUIDS TO EACH OF SAID PUMPS WITH ONE OF SAID PASSAGES ADAPTED TO SUPPLY A FLUID TO COOL THE PUMP BEFORE BEING CIRCULATED BY CENTRIFUGAL FORCE TO THE PUMP PISTONS, AND A SECOND PASSAGE MEANS IN SAID PUMP FOR EXHAUSTING FLUIDS FROM EACH OF SAID PUMP MEANS WITH ONE OF SAID PASSAGES ADAPTED TO INTERMIX A PAIR OF FLUIDS IN A CONSTANT RATIO THROUGHOUT A CONTROL RANGE FOR SAID PUMP; AND A BYPASS MEANS FOR EACH OF SAID FLUIDS OPERATIVELY CONNECTED BETWEEN SAID FIRST AND SECOND PASSAGE MEANS TO PERMIT NORMAL CIRCULATION OF FLUID REGARDLESS OF PUMP OPERATION.
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |