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US3578008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast opening plate valve shock tube system
Assignee: Individual
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Filing: 1969-01-24
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Granted: 1971-05-11
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Expires: 1989-01-24
Abstract
Abstract A thin aluminum plate is positioned over one end of a shock tube to seal the passage between high and low pressure regions. Upon sudden reduction of the pressure on one side of the plate, a low pressure rarefaction passes toward the plate causing the plate to move rapidly away from the shock tube opening and allow high pressure gas to enter the tube and form a chock wave therein.
Inventors
- 👤 Robert O Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:37
CPC Classifications
F; F15; F15B; F15B21/00; F15B21/12; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1714
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A shock tube system comprising: an enclosure, a shock tube extending within said enclosure at one end thereof, a plate movable within and dividing said enclosure into two chambers and adapted to seal the end of said shock tube opening into one of said chambers within said enclosure, a high pressure gas inlet for each of said chambers, and a rupturable diaphragm responsive to a pressure differential for releasing the pressure in the other one of said chambers remote from shock tube to release pressure in said other chamber, thereby causing a rarefaction which produces a pressure difference across the outer periphery of said plate to cause it to accelerate rapidly away from said shock tube to allow gas under high pressure to enter said shock tube.
Claim 2
Dependent Claim
127 words
A shock tube system comprising: an enclosure, a shock tube extending within said enclosure at one end thereof, a plate movable within and dividing said enclosure into two chambers and adapted to seal the end of said shock tube opening into one of said chambers within said enclosure, a high pressure gas inlet for each of said chambers, and a rupturable diaphragm responsive to a pressure differential for releasing the pressure in the other one of said chambers remote from shock tube to release pressure in said other chamber, thereby causing a rarefaction which produces a pressure difference across the outer periphery of said plate to cause it to accelerate rapidly away from said shock tube to allow gas under high pressure to enter said shock tube.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |