Patent US3234727A successfully refreshed from Google Patents.
US3234727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive motors
Assignee: NCR Voyix Corp
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Filing: 1964-11-04
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Granted: 1966-02-15
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Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 Filer Harold Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:50
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/006; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN AN EXPLOSIVE MOTOR OF THE TYPE HAVING A PISTON MEMBER WHICH IS AXIALLY MOVABLE, UNDER THE INFLUENCE OF AN IGNITED EXPLOSIVE CHARGE, WITHIN THE BORE OF A CYLINDER MEMBER, THE PISTON POSITIVE LOCKING FEATURE COMPRISING A FIRST GROOVE EXTENDING CIRCUMFERENTIALLY AROUND THE SURFACE OF SAID PISTON MEMBER, A SECOND GROOVE EXTENDING CIRCUMFERENTIALLY AROUND THE WALL SURFACE OF SAID BORE OF SAID CYLINDER MEMBER AND AXIALLY DISPLACED FROM SAID FIRST GROOVE WHEN SAID PISTON IS IN THE UNFIRED POSITION, A CYLINDRICAL LOCKING MEMBER OF DEFORMABLE MATERIAL HAVING TWO OPEN ENDS DISPOSED AROUND SAID PISTON MEMBER AND BETWEEN SAID FIRST AND SECOND GROOVES WHEN SAID PISTON MEMBER IS IN THE UNFIRED POSTION, AND A SHOULDER EXTENDING AROUND THE CIRCUMFERENCE OF SAID PISTON MEMBER ARRANGED TO ENGAGE AND DEFORM SAID CYLINDRICAL LOCKING MEMBER INTO SAID GROOVES WHEN SAID PISTON MEMBER IS AXIALLY MOVED BY AN IGNITED EXPLOSIVE CHARGE.
Claim 2
Dependent Claim
146 words
IN AN EXPLOSIVE MOTOR OF THE TYPE HAVING A PISTON MEMBER WHICH IS AXIALLY MOVABLE, UNDER THE INFLUENCE OF AN IGNITED EXPLOSIVE CHARGE, WITHIN THE BORE OF A CYLINDER MEMBER, THE PISTON POSITIVE LOCKING FEATURE COMPRISING A FIRST GROOVE EXTENDING CIRCUMFERENTIALLY AROUND THE SURFACE OF SAID PISTON MEMBER, A SECOND GROOVE EXTENDING CIRCUMFERENTIALLY AROUND THE WALL SURFACE OF SAID BORE OF SAID CYLINDER MEMBER AND AXIALLY DISPLACED FROM SAID FIRST GROOVE WHEN SAID PISTON IS IN THE UNFIRED POSITION, A CYLINDRICAL LOCKING MEMBER OF DEFORMABLE MATERIAL HAVING TWO OPEN ENDS DISPOSED AROUND SAID PISTON MEMBER AND BETWEEN SAID FIRST AND SECOND GROOVES WHEN SAID PISTON MEMBER IS IN THE UNFIRED POSTION, AND A SHOULDER EXTENDING AROUND THE CIRCUMFERENCE OF SAID PISTON MEMBER ARRANGED TO ENGAGE AND DEFORM SAID CYLINDRICAL LOCKING MEMBER INTO SAID GROOVES WHEN SAID PISTON MEMBER IS AXIALLY MOVED BY AN IGNITED EXPLOSIVE CHARGE.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |