US3215046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic motor seal
Assignee: Ex-Cell-O Corp
•
Filing: 1964-02-13
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Granted: 1965-11-02
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Expires: 1984-02-13
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:08
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A HYDRAULIC MOTOR ASSEMBLY COMPRISING: (A) TWO OR MORE FLUID CHAMBERS, (B) TWO OR MORE OBSTRUCTION MEMBERS SEPARATING THE FLUID CHAMBERS, (C) A SLOT AS PART OF AN OBSTRUCTION MEMBER, (D) A RELATIVELY STIFF SEAL MEMBER OF RECTANGULAR CROSSSECTION WITHIN THE SLOT, (E) A RESILIENT MEMBER OF CIRCULAR CROSS-SECTION WITHIN THE SLOT AND UNDER SAID SEAL MEMBER TENDING TO FORCE THE SEAL AGAINST THE FLUID CHAMBER WALL, AND (F) WIPER MEMBERS EXTENDING MORE THAN THE FULL DEPTH
Claim 2
Dependent Claim
77 words
A HYDRAULIC MOTOR ASSEMBLY COMPRISING: (A) TWO OR MORE FLUID CHAMBERS, (B) TWO OR MORE OBSTRUCTION MEMBERS SEPARATING THE FLUID CHAMBERS, (C) A SLOT AS PART OF AN OBSTRUCTION MEMBER, (D) A RELATIVELY STIFF SEAL MEMBER OF RECTANGULAR CROSSSECTION WITHIN THE SLOT, (E) A RESILIENT MEMBER OF CIRCULAR CROSS-SECTION WITHIN THE SLOT AND UNDER SAID SEAL MEMBER TENDING TO FORCE THE SEAL AGAINST THE FLUID CHAMBER WALL, AND (F) WIPER MEMBERS EXTENDING MORE THAN THE FULL DEPTH
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |