US4332550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas torch having an improved valve construction
Assignee: Western Industries Inc
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Filing: 1979-10-29
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Granted: 1982-06-01
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Expires: 1999-10-29
Abstract
Abstract An improved valve construction for a gas torch. The torch includes a valve body having a fuel conducting passage which provides communication between a container for pressurized fuel, such as propane, and an outlet tube. An opening in the valve body intersects the gas passage and receives a valve which controls the flow of gas through the passage. The stem of the valve is provided with an external thread which is engaged with an internal thread in the opening, and the outer surface of the valve body bordering the opening is staked to deform the outer portion of the internal thread to prevent the valve from being threaded out of the opening.
Inventors
- 👤 Richard S. Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:33
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A gas torch construction comprising, a valve body to be connected to a container containing pressurized gas, an outlet tube connected to the valve body, passage means extending through the valve body and providing communication between the container and the outlet tube, whereby gas can flow from the container to the outlet tube, said valve body having an opening intersecting said passage means and having an internally threaded section, valve means for controlling the flow of fuel through said passage means and disposed within said opening, said valve means including a stem having an externally threaded section engaged with said internally threaded section, the outer end of said stem projecting outwardly of said valve body in a position to be manually rotated, the outer surface of the valve body bordering said opening having an annular uninterrupted depression, the portion of the valve body between the depression and said opening being depressed inwardly to deform the internal thread inwardly and prevent the external thread of the stem from being completely disengaged from said internal thread.
Claim 2
Dependent Claim
174 words
A gas torch construction comprising, a valve body to be connected to a container containing pressurized gas, an outlet tube connected to the valve body, passage means extending through the valve body and providing communication between the container and the outlet tube, whereby gas can flow from the container to the outlet tube, said valve body having an opening intersecting said passage means and having an internally threaded section, valve means for controlling the flow of fuel through said passage means and disposed within said opening, said valve means including a stem having an externally threaded section engaged with said internally threaded section, the outer end of said stem projecting outwardly of said valve body in a position to be manually rotated, the outer surface of the valve body bordering said opening having an annular uninterrupted depression, the portion of the valve body between the depression and said opening being depressed inwardly to deform the internal thread inwardly and prevent the external thread of the stem from being completely disengaged from said internal thread.
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) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |