Patent US4649955A successfully refreshed from Google Patents.
US4649955A
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Pulsed gas supply
Assignee: United States Department of the Army
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Filing: 1985-10-21
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Granted: 1987-03-17
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Expires: 2005-10-21
Abstract
Abstract The pulsed gas supply consists of a cylindrical gas reservoir which conta a multiplicity of small release ports in a helical pattern and an inner cylindrical rotary valve which also contains a multiplicity of small release ports in the same helical pattern. The reservoir and valve constitute an integral unit which has the advantage of totally balanced forces on a single moving part. This allows for motion free of friction caused by the high pressures of the gas supply.
Inventors
- 👤 William F. Otto
- 👤 Andrews H. Jenkins
- 👤 Thomas G. Roberts
- 👤 Thomas E. Honeycutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:00
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/30; F16K3/34; F16K51/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86509; Y10T137/86517; Y10T137/86718; Y10T137/86743; Y10T137/86751
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A pulsed gas supply valve assembly comprising: a. a toroidal member forming a reservoir and having an inlet connected to a gas source; b. a canister rotatably mounted in said toroidal member and defining an outlet means integrally formed with said reservoir to direct gas therefrom in a pulsed mode; c. said reservoir provided with an interior wall having a plurality of release ports therein, and said rotatable canister having a plurality of openings communicating into the interior thereof, said release ports and said openings disposed for aligned relation responsive to rotation of said canister; d. an outlet disposed in said canister to direct said pulsed gas to a target; and, e. said release ports in said toroidal member of said openings in said canister being arranged along the length of the inner and outer peripheral surfaces, respectively, thereof in a helical pattern.
Claim 2
Dependent Claim
143 words
A pulsed gas supply valve assembly comprising: a. a toroidal member forming a reservoir and having an inlet connected to a gas source; b. a canister rotatably mounted in said toroidal member and defining an outlet means integrally formed with said reservoir to direct gas therefrom in a pulsed mode; c. said reservoir provided with an interior wall having a plurality of release ports therein, and said rotatable canister having a plurality of openings communicating into the interior thereof, said release ports and said openings disposed for aligned relation responsive to rotation of said canister; d. an outlet disposed in said canister to direct said pulsed gas to a target; and, e. said release ports in said toroidal member of said openings in said canister being arranged along the length of the inner and outer peripheral surfaces, respectively, thereof in a helical pattern.
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) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |