US3256828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps for liquids
Assignee: Individual
•
Filing: 1964-04-01
•
Granted: 1966-06-21
•
Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Rule Clinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:19
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/66; F04D29/669; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/083; F04D29/08; F04D29/10; F04D29/106; F04D29/60; F04D29/605; F04D29/606
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PUMP FOR LIQUIDS COMPRISING AN AIRTIGHT HOUSING DEFINING ALL BUT ONE SIDE OF A MOTOR COMPARTMENT, A CASING RIGIDLY AFFIXED TO THE OPEN END OF SAID HOUSING AND DEFINING ALL BUT ONE SIDE OF AN IMPELLER CAVITY, A SUPPORT MEMBER POSITIONED WITHIN THE AREA DEFINED BY SAID CASING AND SAID HOUSING SO AS TO (A) FORM THE REMAINING SIDE OF SAID MOTOR COMPARTMENT, AND (B) FORM THE REMAINING SIDE OF SAID IMPELLER CAVITY, A MOTOR IN SAID COMPARTMENT RESTING UPON SAID SUPPORT MEMBER, SAID MOTOR HAVING A DRIVE SHAFT EXTENDING THROUGH SAID SUPPORT MEMBER, REVERSIBLY COMPRESSIBLE DAMPENING MEANS COMPRESSED BETWEEN SAID MOTOR AND SAID HOUSING, AN IMPELLER WITHIN SAID IMPELLER CAVITY AND AFFIXED TO SAID DRIVE SHAFT, AND AN OUTLET AND AN INLET IN SAID IMPELLER CAVITY.
Claim 2
Dependent Claim
128 words
A PUMP FOR LIQUIDS COMPRISING AN AIRTIGHT HOUSING DEFINING ALL BUT ONE SIDE OF A MOTOR COMPARTMENT, A CASING RIGIDLY AFFIXED TO THE OPEN END OF SAID HOUSING AND DEFINING ALL BUT ONE SIDE OF AN IMPELLER CAVITY, A SUPPORT MEMBER POSITIONED WITHIN THE AREA DEFINED BY SAID CASING AND SAID HOUSING SO AS TO (A) FORM THE REMAINING SIDE OF SAID MOTOR COMPARTMENT, AND (B) FORM THE REMAINING SIDE OF SAID IMPELLER CAVITY, A MOTOR IN SAID COMPARTMENT RESTING UPON SAID SUPPORT MEMBER, SAID MOTOR HAVING A DRIVE SHAFT EXTENDING THROUGH SAID SUPPORT MEMBER, REVERSIBLY COMPRESSIBLE DAMPENING MEANS COMPRESSED BETWEEN SAID MOTOR AND SAID HOUSING, AN IMPELLER WITHIN SAID IMPELLER CAVITY AND AFFIXED TO SAID DRIVE SHAFT, AND AN OUTLET AND AN INLET IN SAID IMPELLER CAVITY.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |