US3283657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for direct percussive ignition of stable explosives, and apparatus therefor
Assignee: United Shoe Machinery Corp
•
Filing: 1964-05-29
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Granted: 1966-11-08
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Expires: 1984-05-29
Abstract
No abstract record available.
Inventors
- 👤 Robert C Kvavle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:43
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; B; B25; B25B; B25B27/00; B25B27/0085; B25C; B25C1/00; B25C1/08; B25C1/082; B25C1/085; F42B39/00; F42B39/08; F42B39/085; F42B39/087; F42C; F42C7/00; F42C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A METHOD OF OPERATING AN EXPLOSIVELY ACTUATED DEVICE COMPRISING CONFINING A SOLID CASELESS CHARGE CONSISTING OF RELATIVELY STABLE LOW EXPLOSIVE AND ENTRAPPED AIR IN A SUBSTANTIALLY CLOSED CHAMBER, INITIALLY VENTING SAID CHAMBER SO AS TO RELEASE PRESSURE OF THE AIR ABOUT THE CHARGE IN SAID CHAMBER, RAPIDLY ENGAGING AND CRUSHING BY IMPACT AT LEAST PART OF SAID CHARGE AFTER THE CHAMBER IS SUBSTANTIALLY CLOSED TO THEREBY EXPLOSIVELY DEFLAGRATE AT LEAST A PORTION OF SAID CHARGE WITH CONSEQUENT EVOLUTION OF GASES, AND CAUSING THE GASES EVOLVED FROM CONTINUED DEFLAGRATION THROUGHOUT SAID CHARGE TO IMPART ENERGY TO AN ELEMENT.
Claim 2
Independent Claim
97 words
A METHOD OF OPERATING AN EXPLOSIVELY ACTUATED DEVICE COMPRISING CONFINING A SOLID CASELESS CHARGE CONSISTING OF RELATIVELY STABLE LOW EXPLOSIVE AND ENTRAPPED AIR IN A SUBSTANTIALLY CLOSED CHAMBER, INITIALLY VENTING SAID CHAMBER SO AS TO RELEASE PRESSURE OF THE AIR ABOUT THE CHARGE IN SAID CHAMBER, RAPIDLY ENGAGING AND CRUSHING BY IMPACT AT LEAST PART OF SAID CHARGE AFTER THE CHAMBER IS SUBSTANTIALLY CLOSED TO THEREBY EXPLOSIVELY DEFLAGRATE AT LEAST A PORTION OF SAID CHARGE WITH CONSEQUENT EVOLUTION OF GASES, AND CAUSING THE GASES EVOLVED FROM CONTINUED DEFLAGRATION THROUGHOUT SAID CHARGE TO IMPART ENERGY TO AN ELEMENT.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |