Patent US3242939A successfully refreshed from Google Patents.
US3242939A
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Explosive operated shut-off device
Assignee: Individual
•
Filing: 1962-09-26
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Granted: 1966-03-29
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Expires: 1982-09-26
Abstract
No abstract record available.
Inventors
- 👤 Warren E Fogg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:59
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; F16K13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN EXPLOSIVE OPERATED SHUT-OFF DEVICE FOR A STRAIGHT THROUGH PIPE OF YIELDABLE MATERIAL COMPRISING A YIELDABLE SLEEVE SLIDABLE OVER SAID PIPE A DETONATION CORD HELICALLY WOUND AROUND SAID SLEEVE WITH THE CONVOLUTIONS OF SAID CORD SUBSTANTIALLY CONTIGUOUS ONE ANOTHER, AND A PRIMER FOR FIRING SAID DETONATION CORD, SAID DETONATION CORD CONTAINING AN EFFECTIVE AMOUNT OF EXPLOSIVE TO COMPLETELY SHUT OFF THE PIPE WHEN THE DETONATION CORD IS FIRED.
Claim 2
Dependent Claim
68 words
AN EXPLOSIVE OPERATED SHUT-OFF DEVICE FOR A STRAIGHT THROUGH PIPE OF YIELDABLE MATERIAL COMPRISING A YIELDABLE SLEEVE SLIDABLE OVER SAID PIPE A DETONATION CORD HELICALLY WOUND AROUND SAID SLEEVE WITH THE CONVOLUTIONS OF SAID CORD SUBSTANTIALLY CONTIGUOUS ONE ANOTHER, AND A PRIMER FOR FIRING SAID DETONATION CORD, SAID DETONATION CORD CONTAINING AN EFFECTIVE AMOUNT OF EXPLOSIVE TO COMPLETELY SHUT OFF THE PIPE WHEN THE DETONATION CORD IS FIRED.
References Cited (Backward Citations)
US2367206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |