US3213805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump control means
Assignee: Bendix Corp
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Filing: 1963-02-25
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Granted: 1965-10-26
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Expires: 1983-02-25
Abstract
No abstract record available.
Inventors
- 👤 Donald L Cooper
- 👤 Richard R Erick
- 👤 Henry P Tyler
- 👤 Robert W Loy
- 👤 Joseph L Peczkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:16
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/08; F01; F01B; F01B3/00; F01B3/10; F01B3/103; F01B3/106; F04B1/00; F04B1/12; F04B1/20; F04B1/22; F04B1/26; F04B1/30; F04B1/32; F04B1/324
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A PUMP HAVING A FLUID OUTLET AND A VARIABLE DISCHARGE CONTROL MEANS: A FIRST VALVE MEANS CONNECTED TO SAID OUTLET; A FIRST PISTON MEANS OPERATIVELY CONNECTED WITH SAID CONTROL MEANS, SAID FIRST PISTON MEANS BEING CONTROLLED BY SAID FIRST VALVE MEANS; A SENSING MEANS OPERATIVELY CONNECTED WITH SAID FIRST VALVE MEANS AND SAID FIRST PISTON MEANS TO CONTROL VALVE MOVEMENT IN RESPONSE TO PISTON MOVEMENT; A SECOND VALVE MEANS CONNECTED TO SAID FIRST FLUDI OUTLET; A SECOND PISTON MEANS CONTROLLEDBY SAID SECOND VALVE MEANS IN ACCORDANCE WITH PUMP DISCHARGE PRESSURE, THAT OPENS SAID SECOND VALVE MEANS TO CONTROL SAID SECON D PISTON MEANS; AND MEANS TO ADDITIVELY CONNECT SAID FIRST AND SECOND PISTONS TO SAID VARIABLE DISCHARGE CONTROL MEANS.
Claim 2
Dependent Claim
120 words
IN A PUMP HAVING A FLUID OUTLET AND A VARIABLE DISCHARGE CONTROL MEANS: A FIRST VALVE MEANS CONNECTED TO SAID OUTLET; A FIRST PISTON MEANS OPERATIVELY CONNECTED WITH SAID CONTROL MEANS, SAID FIRST PISTON MEANS BEING CONTROLLED BY SAID FIRST VALVE MEANS; A SENSING MEANS OPERATIVELY CONNECTED WITH SAID FIRST VALVE MEANS AND SAID FIRST PISTON MEANS TO CONTROL VALVE MOVEMENT IN RESPONSE TO PISTON MOVEMENT; A SECOND VALVE MEANS CONNECTED TO SAID FIRST FLUDI OUTLET; A SECOND PISTON MEANS CONTROLLEDBY SAID SECOND VALVE MEANS IN ACCORDANCE WITH PUMP DISCHARGE PRESSURE, THAT OPENS SAID SECOND VALVE MEANS TO CONTROL SAID SECON D PISTON MEANS; AND MEANS TO ADDITIVELY CONNECT SAID FIRST AND SECOND PISTONS TO SAID VARIABLE DISCHARGE CONTROL MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |