Patent US3611540A successfully refreshed from Google Patents.
US3611540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal puller
Assignee: United States Department of the Air Force
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Filing: 1969-07-28
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Granted: 1971-10-12
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Expires: 1989-07-28
Abstract
Abstract A PULLER FOR EXTRACTING A SEALING ELEMENT FROM THE HOUSING OF AN AIRCRAFT ACCESSORIES CASE HAVING A DRIVE SHAFT EXTENDING OUTWARDLY THEREFROM. THE PULLER INCLUDES A HOLLOW DRAW COLLET MEMBER WITH FLEXIBLE FINGER ELEMENTS WHICH ARE POSITIONED BEHIND THE SEAL AND WHICH MOVE RADIALLY OUTWARD IN REPONSE TO THE RELATIVE AXIAL MOVEMENT OF A COLLET SPREADER TO ENGAGE THE INSIDE CIRCUMFERENCE OF THE STEEL CASE OF THE SEAL. THE TIGHTENING OF A DRIVE BOLT AGAINST THE END OF THE DRIVE SHAFT THEN PULLS THE SEAL FROM THE HOUSING.
Inventors
- 👤 Tadashi Gibu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:47
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/023; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53848; Y10T29/53857; Y10T29/53878
Claims Analysis
Total Claims: 0
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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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |