US3205829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating diaphragm pump
Assignee: Motors Liquidation Co
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Filing: 1962-10-04
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Granted: 1965-09-14
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Expires: 1982-10-04
Abstract
No abstract record available.
Inventors
- 👤 Gerald R Andersen
- 👤 William W Harris
- 👤 Kenneth C Kernen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:42
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/16; F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4388; F02M2700/439
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PUMP COMPRISING A CASING, A DIAPHRAGM COOPERATING WITH SAID CASING TO FORM A PUMPING CHAMBER, PROTECTOR PLATE MEANS IN THE FORM OF A RIGID LEVER RETAINING A MOVABLE PORTION OF SAID DIAPHRAGM AND HAVING A PIVOTAL MOUNTING ON SAID CASING, SPRING MEANS URGING SAID PROTECTOR PLATE MEANS TO MOVE IN ONE DIRECTION IN AN ARCUATE PATH ABOUT SAID PIVOTAL MOUNTING THEREBY EFFECTING A PUMPING STROKE, POWER MEANS FOR DRIVING SAID PROTECTOR PLATE MEANS IN THE OTHER DIRECTION IN SAID PATH AND AGAINST SAID SPRING MEANS THEREBY EFFECTING A SUCTION STROKE, AND SAID PIVOTAL MOUNTING BEING AT ONE SIDE OF SAID ARCUATE PATH.
Claim 2
Dependent Claim
103 words
A PUMP COMPRISING A CASING, A DIAPHRAGM COOPERATING WITH SAID CASING TO FORM A PUMPING CHAMBER, PROTECTOR PLATE MEANS IN THE FORM OF A RIGID LEVER RETAINING A MOVABLE PORTION OF SAID DIAPHRAGM AND HAVING A PIVOTAL MOUNTING ON SAID CASING, SPRING MEANS URGING SAID PROTECTOR PLATE MEANS TO MOVE IN ONE DIRECTION IN AN ARCUATE PATH ABOUT SAID PIVOTAL MOUNTING THEREBY EFFECTING A PUMPING STROKE, POWER MEANS FOR DRIVING SAID PROTECTOR PLATE MEANS IN THE OTHER DIRECTION IN SAID PATH AND AGAINST SAID SPRING MEANS THEREBY EFFECTING A SUCTION STROKE, AND SAID PIVOTAL MOUNTING BEING AT ONE SIDE OF SAID ARCUATE PATH.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |