US3144919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-pull shaft assembly
Assignee: Weatherhead Co
•
Filing: 1962-07-24
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Granted: 1964-08-18
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Expires: 1982-07-24
Abstract
No abstract record available.
Inventors
- 👤 Charles M Foote
- 👤 Clem W Evard
- 👤 Emil A Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:34
CPC Classifications
G; G05; G05G; G05G5/00; G05G5/12; G05G5/14; G05G5/16; F; F16; F16C; F16C1/00; F16C1/26; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20426; Y10T74/20462; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN ASSEMBLY COMPRISING A SUPPORT HAVING AN OPENING THERETHROUGH, A UNITARY CIRCUMFERENTIALLY CONTINUOUS RESILIENT DEFORMABLE PLASTIC BUSHING SEATED IN SAID OPENING, SAID BUSHING HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED CORNERS ENGAGING THE SIDE WALL OF SAID OPENING AND BETWEEN SAID CORNERS PRESENTING SIDES WHICH ARE SPACED INWARD FROM THE SIDE WALL OF SAID OPENING, MEANS ON SAID HOUSING RETAINING SAID BUSHING AGAINST LONGITUDINAL MOVEMENT IN SAID OPENING, AND A LONGITUDINALLY RECIPROCABLE SHAFT EXTENDING THROUGH SAID OPENING AND SAID BUSHING, SAID SHAFT HAVING A MAXIMUM CROSS-SECTIONAL DIMENSION GREATER THAN THE MINIMUM INTERNAL CROSS-SECTIONAL DIMENSION OF SAID BUSHING BETWEEN SAID SIDES, SAID SHAFT ENGAGING SAID SIDES OF THE BUSHING AND DEFORMING THE LATTER OUTWARDLY AT A PLURALITY OF CIRCUMFERENTIALLY SPACED LOCATIONS WHICH ARE SPACED FROM SAID CORNERS OF THE BUSHING, SAID BUSHING BY ITS DEFORMATION AT SAID SIDES PRODUCING A FRICTIONAL RESTRAINT ON THE SHAFT AT SAID LAST-MENTIONED LOCATIONS.
Claim 2
Dependent Claim
147 words
AN ASSEMBLY COMPRISING A SUPPORT HAVING AN OPENING THERETHROUGH, A UNITARY CIRCUMFERENTIALLY CONTINUOUS RESILIENT DEFORMABLE PLASTIC BUSHING SEATED IN SAID OPENING, SAID BUSHING HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED CORNERS ENGAGING THE SIDE WALL OF SAID OPENING AND BETWEEN SAID CORNERS PRESENTING SIDES WHICH ARE SPACED INWARD FROM THE SIDE WALL OF SAID OPENING, MEANS ON SAID HOUSING RETAINING SAID BUSHING AGAINST LONGITUDINAL MOVEMENT IN SAID OPENING, AND A LONGITUDINALLY RECIPROCABLE SHAFT EXTENDING THROUGH SAID OPENING AND SAID BUSHING, SAID SHAFT HAVING A MAXIMUM CROSS-SECTIONAL DIMENSION GREATER THAN THE MINIMUM INTERNAL CROSS-SECTIONAL DIMENSION OF SAID BUSHING BETWEEN SAID SIDES, SAID SHAFT ENGAGING SAID SIDES OF THE BUSHING AND DEFORMING THE LATTER OUTWARDLY AT A PLURALITY OF CIRCUMFERENTIALLY SPACED LOCATIONS WHICH ARE SPACED FROM SAID CORNERS OF THE BUSHING, SAID BUSHING BY ITS DEFORMATION AT SAID SIDES PRODUCING A FRICTIONAL RESTRAINT ON THE SHAFT AT SAID LAST-MENTIONED LOCATIONS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |