US3817299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansive gas protective device
Assignee: Individual
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Filing: 1972-04-10
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Granted: 1974-06-18
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Expires: 1992-04-10
Abstract
Abstract An expansive gas protective device for use in a personnel work area and including a heavy walled protective vessel formed with a high pressure work piece chamber disposed in the work area and formed with a discharge outlet opening to an area remote from such work area and a doorway opening into such work area and normally covered by a heavy door. A high pressure source includes connector means disposed within the chamber for connection with work pieces located in such chamber. Means is also provided for moving the door between open and closed positions. Thus, work pieces may be placed in such chamber and the connectors connected therewith, the door closed and the high pressure source actuated to pressurize the work pieces. In the event of a failure and rapid expansion of gases in such chamber, the expanding gases will be directed out such outlet to the area remote from the work area and, likewise, any debris or airborne work pieces will also be directed away from the work area to protect personnel working in such area.
Inventors
- 👤 C Koehler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:42
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/12; F17C2205/00; F17C2205/01; F17C2205/0123; F17C2205/013; F17C2205/0134; F17C2205/0146; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0326; F17C2205/0352; F17C2205/0364; F17C2221/00; F17C2221/03; F17C2221/031; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/036; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0157; F17C2227/03; F17C2227/0337; F17C2227/0341; F17C2227/0348; F17C2227/04; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/043; F17C2250/06; F17C2250/0605; F17C2250/0636; F17C2260/00; F17C2260/04; F17C2260/042; F17C2270/00; F17C2270/07; F17C2270/0781
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
138 words
An expansive gas protective device for use in a work area for filling work-pieces and comprising: a heavy walled protective vessel formed with a high pressure work piece chamber disposed in said work area and having a discharge outlet opening toward an area remote from said work area, said chamber including an access doorway disposed in said work area; a high pressure source including connectOr means disposed in said chamber for connection with said work pieces; a door for covering said access doorway; counter-balance means connected with said door for urging it towards its open position and including a counter-balance fluid tank having an outlet port therein; valve means controlling flow from said outlet port; counter-balance fluid supply means for providing fluid to said tank; and means for moving said door between an open and a closed position.
Claim 2
Dependent Claim
138 words
An expansive gas protective device for use in a work area for filling work-pieces and comprising: a heavy walled protective vessel formed with a high pressure work piece chamber disposed in said work area and having a discharge outlet opening toward an area remote from said work area, said chamber including an access doorway disposed in said work area; a high pressure source including connectOr means disposed in said chamber for connection with said work pieces; a door for covering said access doorway; counter-balance means connected with said door for urging it towards its open position and including a counter-balance fluid tank having an outlet port therein; valve means controlling flow from said outlet port; counter-balance fluid supply means for providing fluid to said tank; and means for moving said door between an open and a closed position.
Claim 3
Dependent Claim
51 words
An expansive gas protective device as set forth in claim 1 that includes: spray means for spraying cooling fluid into said chamber and wherein; said tank is disposed in the path of fluid sprayed from said spray means and is open on the top side thereof for receipt of said fluid.
Claim 4
Dependent Claim
53 words
An expansive gas protective device as set forth in claim 2 that includes: a fluid supply line leading to said spray means; fluid control means in said line and responsive to closing of said door to deliver fluid to said tank and opening of said door to discontinue fluid delivery to said tank.
Claim 5
Dependent Claim
57 words
An expansive gas protective device as set forth in claim 1 wherein said: counter-balance means includes a counter-balance weight having a weight slightly less than the weight of said door and said tank has sufficient capacity to hold a sufficient quantity of said fluid to, when coupled with the weight of said counter-balance weight, overbalance said door.
Claim 6
Dependent Claim
37 words
An expansive gas protective device as set forth in claim 4 that includes: means responsive to opening of said door to open said valve means and responsive to closing of said door to close said valve means.
Claim 7
Dependent Claim
51 words
An expansive gas protective device as set forth in claim 4 that includes: spray means for spraying cooling fluid into said chamber and wherein; said tank is disposed in the path of fluid sprayed from said spray means and is open on the top side thereof for receipt of said fluid.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |