US3238876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for through-bulkhead shock initiation
Assignee: MCCORMICK SELPH ASSOCIATES Inc
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Filing: 1963-10-08
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Granted: 1966-03-08
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Expires: 1983-10-08
Abstract
No abstract record available.
Inventors
- 👤 Robert C Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:24
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A THROUGH-BULKHEAD DETONATION DEVICE COMPRISING: (A) A HOUSING INTEGRALLY SUPPORTED WITHIN SAID BULKHEAD AND HAVING COAXIALLY ALIGNED DONOR AND PICK-UP PORTS OPENING ON EITHER SIDE OF SAID BULKHEAD, TOGETHER WITH AN INTERVENTING SUBSTANTIALLY NON-COMPRESSIBLE PORTION INTERPOSED BETWEEN SAID PORTS; (B) A CRYSTALLINE HIGH-EXPLOSIVE DONOR CHARGE FROM A GROUP OF SECONDARY HIGH EXPLOSIVES CONSISTING OF PENTAERYTHRITE TETRANITRATE (PETN) AND CYCLONITE (RDX) WHICH REACT WITH A VELOCITY IN EXCESS OF 3,000 FEET PER SECOND POSITIONED AT THE BASE OF SAID DONOR PORT ADJACENT SAID NON-COMPRESSIBLE INTERVENTING PORTION; (C) A SECONDARY HIGH-EXPLOSIVE PICK-UP CHARGE CAPABLE OF BEING INITIATED BY THE ENERGY OF AN EXPLOSIVELY GENERATED SHOCK WAVE POSITIONED AT THE BASE OF SAID PICK-UP PORT ADJACENT SAID INTERVENING NON-COMPRESSIBLE PORTION; AND (D) AN IGNITION CHARGE SUPPORTED ADJACENT SAID PICKUP CHARGE INSIDE OF SAID BULKHEAD.
Claim 2
Dependent Claim
131 words
A THROUGH-BULKHEAD DETONATION DEVICE COMPRISING: (A) A HOUSING INTEGRALLY SUPPORTED WITHIN SAID BULKHEAD AND HAVING COAXIALLY ALIGNED DONOR AND PICK-UP PORTS OPENING ON EITHER SIDE OF SAID BULKHEAD, TOGETHER WITH AN INTERVENTING SUBSTANTIALLY NON-COMPRESSIBLE PORTION INTERPOSED BETWEEN SAID PORTS; (B) A CRYSTALLINE HIGH-EXPLOSIVE DONOR CHARGE FROM A GROUP OF SECONDARY HIGH EXPLOSIVES CONSISTING OF PENTAERYTHRITE TETRANITRATE (PETN) AND CYCLONITE (RDX) WHICH REACT WITH A VELOCITY IN EXCESS OF 3,000 FEET PER SECOND POSITIONED AT THE BASE OF SAID DONOR PORT ADJACENT SAID NON-COMPRESSIBLE INTERVENTING PORTION; (C) A SECONDARY HIGH-EXPLOSIVE PICK-UP CHARGE CAPABLE OF BEING INITIATED BY THE ENERGY OF AN EXPLOSIVELY GENERATED SHOCK WAVE POSITIONED AT THE BASE OF SAID PICK-UP PORT ADJACENT SAID INTERVENING NON-COMPRESSIBLE PORTION; AND (D) AN IGNITION CHARGE SUPPORTED ADJACENT SAID PICKUP CHARGE INSIDE OF SAID BULKHEAD.
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |