US3567132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas torch for welding preferably fusible materials, such as plastics and for soldering soft alloys
Assignee: Individual
•
Filing: 1968-08-12
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Granted: 1971-03-02
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Expires: 1988-08-12
Abstract
Abstract A gas torch comprises a hollow housing with channels for feeding combustible gas and air to a mixing chamber within the housing. Inside the housing and facing the channels is a nozzle communicating with the gas channel. The periphery of the nozzle is provided with spirallike projections disposed downstream of the air channel to effect primary eddying of the air. At the outlet end of the housing is an outlet nozzle and an additional vortex generator is disposed between the nozzles, the latter vortex generator being formed by threads on the inside walls of the housing.
Inventors
- 👤 Andrei Nikolaevich Shashkov
- 👤 Jury Ivanovich Nekrasov
- 👤 Leonid Petrovich Guskov
- 👤 Nina Lvovna Frolova
- 👤 Vladimir Nikoaevich Potapov
- 👤 Jury Konstantinovich Rodin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:57
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/38; F23D14/40
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
178 words
A gas torch for welding fusible materials and soldering soft alloys, said torch comprising an elongated housing defining a chamber therein, said housing having opposite ends, an outlet nozzle at one end of said housing communicating with said chamber, an air channel in said housing, a separate channel for combustible gas in said housing, said channels opening into said chamber, and a nozzle body in said chamber communicating with the gas channel for conveying gas from the gas channel to spray the gas into said chamber within the housing, said nozzle body having a peripheral surface with spiral projections thereon disposed downstream of the air channel for producing eddies in the air as it flows to said chamber past the nozzle body, said air and gas being mixed in said chamber and fed to the outlet nozzle for discharge therefrom, said housing having inner walls with a thread disposed upstream of said nozzle and coaxially with said nozzle body to serve as a vortex geneRator for maintaining the air eddies imparted at the periphery of said nozzle body.
Claim 2
Dependent Claim
178 words
A gas torch for welding fusible materials and soldering soft alloys, said torch comprising an elongated housing defining a chamber therein, said housing having opposite ends, an outlet nozzle at one end of said housing communicating with said chamber, an air channel in said housing, a separate channel for combustible gas in said housing, said channels opening into said chamber, and a nozzle body in said chamber communicating with the gas channel for conveying gas from the gas channel to spray the gas into said chamber within the housing, said nozzle body having a peripheral surface with spiral projections thereon disposed downstream of the air channel for producing eddies in the air as it flows to said chamber past the nozzle body, said air and gas being mixed in said chamber and fed to the outlet nozzle for discharge therefrom, said housing having inner walls with a thread disposed upstream of said nozzle and coaxially with said nozzle body to serve as a vortex geneRator for maintaining the air eddies imparted at the periphery of said nozzle body.
Claim 3
Dependent Claim
25 words
A gas torch as claimed in claim 1, wherein said nozzle body has a central portion with an external annular recess facing said air channel.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |