Patent US3263618A successfully refreshed from Google Patents.
US3263618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield washer pump
Assignee: Motors Liquidation Co
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Filing: 1964-04-21
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Granted: 1966-08-02
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Expires: 1984-04-21
Abstract
No abstract record available.
Inventors
- 👤 Keith H Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0081; F04B43/009; F04B43/02; F04B43/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A PUMP COMPRISING, A CASING HAVING A FLUID DISPLACING DIAPHRAGM THEREIN WITH AN INTAKE STROKE AND A DELIVERY STROKE, POWER MEANS ACTING CONSTANTLY ON SAID DIAPHRAGM TO EFFECT ONE STROKE THEREOF, AND HYDRAULIC FLUID PRESSURE ACTUATED MEANS FOR EFFECTING THE OTHER STROKE OF SAID DIAPHRAGM, SAID DIAPHRAGM BEING CHARACTERIZED BY HAVING A PAIR OF SPACED DIAPHRAGM PORTIONS AND INTEGRAL SEPARATOR MEANS HOLDING SAID DIAPHRAGM PORTIONS IN SPACED RELATION WHEREBY RUPTURE OF EITHER OF SAID DIAPHRAGM PORTIONS RENDERS THE PUMP INOPERATIVE AND PRECLUDES INTERMIXING OF THE FLUID BEING PUMPED AND THE ACTUATING HYDRAULIC FLUID, SAID INTEGRAL SEPARATOR MEANS INCLUDING A CENTRALLY DISPOSED INTEGRAL PORTION AND AN INTEGRAL PERIPHERAL BEAD, SAID CASING HAVING TWO PARTS WHICH CLAMPINGLY EMBRACE SAID BEAD.
Claim 2
Dependent Claim
118 words
A PUMP COMPRISING, A CASING HAVING A FLUID DISPLACING DIAPHRAGM THEREIN WITH AN INTAKE STROKE AND A DELIVERY STROKE, POWER MEANS ACTING CONSTANTLY ON SAID DIAPHRAGM TO EFFECT ONE STROKE THEREOF, AND HYDRAULIC FLUID PRESSURE ACTUATED MEANS FOR EFFECTING THE OTHER STROKE OF SAID DIAPHRAGM, SAID DIAPHRAGM BEING CHARACTERIZED BY HAVING A PAIR OF SPACED DIAPHRAGM PORTIONS AND INTEGRAL SEPARATOR MEANS HOLDING SAID DIAPHRAGM PORTIONS IN SPACED RELATION WHEREBY RUPTURE OF EITHER OF SAID DIAPHRAGM PORTIONS RENDERS THE PUMP INOPERATIVE AND PRECLUDES INTERMIXING OF THE FLUID BEING PUMPED AND THE ACTUATING HYDRAULIC FLUID, SAID INTEGRAL SEPARATOR MEANS INCLUDING A CENTRALLY DISPOSED INTEGRAL PORTION AND AN INTEGRAL PERIPHERAL BEAD, SAID CASING HAVING TWO PARTS WHICH CLAMPINGLY EMBRACE SAID BEAD.
References Cited (Backward Citations)
No citation records indexed.
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 |