US3332432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive-operated valve
Assignee: PYRONETICS Inc
•
Filing: 1966-01-14
•
Granted: 1967-07-25
•
Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 John L Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:49
CPC Classifications
E; E21; E21B; E21B29/00; E21B29/08; F; F16; F16K; F16K13/00; F16K13/04; F16K13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/1654; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN EXPLOSIVE-OPERATED VALVE, WHICH COMPRISES WALL MEANS TO DEFINE A VALVE CHAMBER, A PIPE ELEMENT SEALINGLY MOUNTED IN SAID WALL MEANS AND EXTENDING THROUGH SAID CHAMBER, SAID PIPE ELEMENT HAVING STRESS RISERS THEREIN AT LONGITUDINALLY SPACED POINTS WITHIN SAID CHAMBER WHEREBY TO FORM BETWEEN SAID STRESS RISERS A PIPE SECTION ADAPTED TO BE SHEARED OUT, A RAM ELEMENT MOUNTED FOR MOVEMENT IN SAID CHAMBER RELATIVE TO SAID PIPE ELEMENT AND HAVING A SHEARING SECTION ADAPTED UPON MOVEMENT OF SAID RAM ELEMENT TO SHEAR OUT SAID SECTION, AND EXPLOSIVE MEANS TO MOVE SAID RAM ELEMENT AND EFFECT SAID SHEARING OUT OF SAID SECTION BETWEEN SAID STRESS RISERS WHEREBY TO PROVIDE A CONTROL OPERATION RELATIVE TO FLOW OF FLUID THROUGH SAID PIPE ELEMENT.
Claim 2
Dependent Claim
121 words
AN EXPLOSIVE-OPERATED VALVE, WHICH COMPRISES WALL MEANS TO DEFINE A VALVE CHAMBER, A PIPE ELEMENT SEALINGLY MOUNTED IN SAID WALL MEANS AND EXTENDING THROUGH SAID CHAMBER, SAID PIPE ELEMENT HAVING STRESS RISERS THEREIN AT LONGITUDINALLY SPACED POINTS WITHIN SAID CHAMBER WHEREBY TO FORM BETWEEN SAID STRESS RISERS A PIPE SECTION ADAPTED TO BE SHEARED OUT, A RAM ELEMENT MOUNTED FOR MOVEMENT IN SAID CHAMBER RELATIVE TO SAID PIPE ELEMENT AND HAVING A SHEARING SECTION ADAPTED UPON MOVEMENT OF SAID RAM ELEMENT TO SHEAR OUT SAID SECTION, AND EXPLOSIVE MEANS TO MOVE SAID RAM ELEMENT AND EFFECT SAID SHEARING OUT OF SAID SECTION BETWEEN SAID STRESS RISERS WHEREBY TO PROVIDE A CONTROL OPERATION RELATIVE TO FLOW OF FLUID THROUGH SAID PIPE ELEMENT.
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |