Patent US3564697A successfully refreshed from Google Patents.
US3564697A
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US
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Collet lock removal tool
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1969-04-07
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Granted: 1971-02-23
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Expires: 1989-04-07
Abstract
Abstract A TOOL FOR REMOVING MULTI-FINGER INTERNALLY BEADED COLLECT FROM GROOVED STEMS WHICH HAS A STEM RECEIVING HOLLOW HEAD WITH FORWARDLY PROJECTING TAPERED TABS ADAPTED TO ACT BETWEEN THE STEM AND EACH FINGER OF THE COLLET FOR EXPANDING THE FINGERS SUFFICIENTLY SO THAT THEIR BEADS WILL NOT ENGAGE IN THE GROOVE OF THE STEM AND ALSO HAVING AN INDEXING PRONG FITTING IN A SLOT BETWEEN ADJACENT FINGERS FOR POSITIONING THE TABS AT THE MIDPOINTS OF THE FINGERS. THE TOOL IS ESPECIALLY ADAPTED FOR REMOVING LOCK AND SPRING RETAINER ASSEMBLIES FROM GROOVED POPPET VALVE STEMS.
Inventors
- 👤 John H Shalaty
- 👤 Herbert W Arp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:40
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/10; B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; F01L2303/00; F01L2303/01; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53817; Y10T29/53909; Y10T29/53913; Y10T29/53917; Y10T29/53943; Y10T29/53952
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |