Patent US3713636A successfully refreshed from Google Patents.
US3713636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incendiary cutting torch for underwater use
Assignee: United States Department of the Navy
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Filing: 1970-09-22
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Granted: 1973-01-30
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Expires: 1990-09-22
Abstract
Abstract An incendiary torch having a cylindrical housing with a nozzle positioned at one end thereof. The nozzle is held in place by a retainer cap threadedly attached to the housing which includes a diaphragm overlying the aperture in the nozzle thereby preventing the ambient environment from entering the torch chamber. The end of the torch housing may be connected to a work holding device.
Inventors
- 👤 H Helms
- 👤 A Rozner
- 👤 D Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:55
CPC Classifications
F; F23; F23B; F23B7/00; F23B2700/00; F23B2700/037
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
116 words
A tool adapted to be used as a cutting torch comprising: a fuel receiving chamber formed in a tubular housing having a closed end and an open end; a nozzle connected to the open end of the tubular housing and having at least one aperture therethrough communicating with said fuel receiving chamber; fastener means in the open end of the housing for receiving said nozzle; a diaphragm coupled to said fastener means for sealing said nozzle aperture in a closed mode and adapted to withstand a predetermined internal pressure; an electroresponsive squib contained within said fuel receiving chamber at the closed end thereof; and remotely controllable means external to said housing for activating said electroresponsive squib.
Claim 2
Dependent Claim
116 words
A tool adapted to be used as a cutting torch comprising: a fuel receiving chamber formed in a tubular housing having a closed end and an open end; a nozzle connected to the open end of the tubular housing and having at least one aperture therethrough communicating with said fuel receiving chamber; fastener means in the open end of the housing for receiving said nozzle; a diaphragm coupled to said fastener means for sealing said nozzle aperture in a closed mode and adapted to withstand a predetermined internal pressure; an electroresponsive squib contained within said fuel receiving chamber at the closed end thereof; and remotely controllable means external to said housing for activating said electroresponsive squib.
Claim 3
Dependent Claim
116 words
A tool adapted to be used as a cutting torch comprising: a fuel receiving chamber formed in a tubular housing having a closed end and an open end; a nozzle connected to the open end of the tubular housing and having at least one aperture therethrough communicating with said fuel receiving chamber; fastener means in the open end of the housing for receiving said nozzle; a diaphragm coupled to said fastener means for sealing said nozzle aperture in a closed mode and adapted to withstand a predetermined internal pressure; an electroresponsive squib contained within said fuel receiving chamber at the closed end thereof; and remotely controllable means external to said housing for activating said electroresponsive squib.
Claim 4
Dependent Claim
116 words
A tool adapted to be used as a cutting torch comprising: a fuel receiving chamber formed in a tubular housing having a closed end and an open end; a nozzle connected to the open end of the tubular housing and having at least one aperture therethrough communicating with said fuel receiving chamber; fastener means in the open end of the housing for receiving said nozzle; a diaphragm coupled to said fastener means for sealing said nozzle aperture in a closed mode and adapted to withstand a predetermined internal pressure; an electroresponsive squib contained within said fuel receiving chamber at the closed end thereof; and remotely controllable means external to said housing for activating said electroresponsive squib.
Claim 5
Dependent Claim
38 words
The tool as recited in claim 1 further including a solid fuel composition positioned within said fuel receiving chamber which upon ignition reacts to form a molten liquid which exits from said nozzle as a high velocity jet.
Claim 6
Dependent Claim
125 words
An incendiary cutting torch adapted for use underwater comprising: a cylindrical housing having an elongate cylindrical bore formed the length thereof defining a fuel receiving chamber and having an open end and a closed end; a solid fuel composition positioned within said fuel receiving chamber; an electroresponsive squib embedded in said solid fuel composition; a nozzle detachably connected to said open end of said housing and having aT least one aperture therein; a retaining member connected to said open end of said housing having a cylindrical cavity portion formed therein to receive said nozzle and a bottom portion integral therewith effectively closing said open end; and a diaphragm integral with said retaining member adapted to withstand a predetermined internal pressure within said fuel receiving chamber.
Claim 7
Dependent Claim
125 words
An incendiary cutting torch adapted for use underwater comprising: a cylindrical housing having an elongate cylindrical bore formed the length thereof defining a fuel receiving chamber and having an open end and a closed end; a solid fuel composition positioned within said fuel receiving chamber; an electroresponsive squib embedded in said solid fuel composition; a nozzle detachably connected to said open end of said housing and having aT least one aperture therein; a retaining member connected to said open end of said housing having a cylindrical cavity portion formed therein to receive said nozzle and a bottom portion integral therewith effectively closing said open end; and a diaphragm integral with said retaining member adapted to withstand a predetermined internal pressure within said fuel receiving chamber.
Claim 8
Dependent Claim
23 words
An incendiary torch as recited in claim 3 wherein said elongate cylindrical bore has a burning resistant liner positioned on the surface thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |