US3844355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure containers
Assignee: Novelis Deutschland GmbH
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Filing: 1973-06-05
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Granted: 1974-10-29
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Expires: 1993-06-05
Abstract
Abstract A seamless pressure container extruded from low-density metal includes a bush which extends into the interior of the container and which is integrally formed with the container, and a valve body sealingly fitted in the bush. In one arrangement in which the pressure container is part of a portable fire extinguisher and the valve body is that of a filling and test valve for the extinguisher the bush is positioned centrally of an inwardlydomed base part of the container.
Inventors
- 👤 C Kreipe
- 👤 H Peckmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:45
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/42; A; A62; A62C; A62C13/00; A62C13/76; F; F16; F16J; F16J12/00; F17; F17C; F17C1/00; F17C1/14; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0114; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/058; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0617; F17C2203/0634; F17C2203/0636; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/0157; F17C2205/018; F17C2205/03; F17C2205/0302; F17C2205/0308; F17C2205/0323; F17C2205/0388; F17C2205/0394; F17C2205/0397; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2260/00; F17C2260/01; F17C2270/00; F17C2270/07; F17C2270/0754; Y; Y10; Y10S; Y10S220/00; Y10S220/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
75 words
A metal pressure container comprising: a. a seamless wall forming said container, said wall having an inwardly domed base portion, b. a bush integrally formed with said wall disposed substantially at the center of said base portion, said bush having a passageway therethrough, and c. a valve body sealingly fitted in said passageway such that an outwardly projecting end of said valve body terminates above the plane defined by the bottom of said base portion.
Claim 2
Dependent Claim
75 words
A metal pressure container comprising: a. a seamless wall forming said container, said wall having an inwardly domed base portion, b. a bush integrally formed with said wall disposed substantially at the center of said base portion, said bush having a passageway therethrough, and c. a valve body sealingly fitted in said passageway such that an outwardly projecting end of said valve body terminates above the plane defined by the bottom of said base portion.
Claim 3
Dependent Claim
25 words
A metal pressure container according to claim 1, wherein said bush has indentations fromed in said passageway to engage corresponding protrusions on said valve body.
Claim 4
Dependent Claim
17 words
A metal pressure container according to claim 1 wherein the valve body is pressed into the bush.
Claim 5
Dependent Claim
17 words
A metal pressure container according to claim 1 wherein the valve body is screwed into the bush.
Claim 6
Dependent Claim
31 words
A fire extinguisher having a pressure container according to claim 1 including a filling and test valve wherein the case of said valve comprises said valve body fitted in said bush.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |