US3684187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine mounted cutting torch
Assignee: Individual
•
Filing: 1970-06-05
•
Granted: 1972-08-15
•
Expires: 1990-06-05
Abstract
Abstract A machine mounted cutting torch comprising a valve block assembly and a head assembly. First, second and third valve assemblies are provided in the valve block assembly and are connected to sources of oxygen, oxygen and industrial gas respectively. The valve assemblies are actuated by a trigger lever pivotally mounted on the valve block assembly which is movable between first, second and third positions. All of the valve assemblies are normally closed when the trigger lever is in its first position. The second and third valve assemblies are opened when the trigger lever is moved to its second position so that oxygen and industrial gas can flow therethrough respectively. The first, second and third valve assemblies are opened when the trigger level is in its third position. The second and third assemblies are in communication with a rotatable volume control valve mounted in the valve block assembly which is adapted to permit the proper oxygen-gas mixture to flow therethrough when the first and second valve assemblies are opened. The volume control valve is in communication with the torch nozzle or tip at the forward end of the head assembly. The torch also includes an oxygen line which connects the first valve assembly and the nozzle so that additional oxygen can be supplied to the nozzle when the actual cutting operation is to be performed.
Inventors
- 👤 Berwyn E Etter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:34
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/38; F23D14/42; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86558; Y10T137/86566; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
286 words
A cutting torch comprising, a body portion having a chamber, a nozzle element at one end of said body portion, a first conduit extending through said body portion to said nozzle element, a second conduit extending through said body portion to said nozzle element, a first valve means movably mounted in said body portion and having first and second valve portions in communication with said first and second conduits respectively, said first and second valve portions having a plurality of first and second passageways formed therein respectively, adapted to register with said first and second conduits respectively, upon selective positioning of said first valve means, said passageways in each valve portion being of a different crosssectional size, means adapted to connect said first and second conduits to sources of industrial gas and oxygen respectively, whereupon industrial gas and oxygen can flow through said respective conduits upon the alignment of a passageway in one of said valve portions with said conduits by the movement of said first valve means, a second valve means in said body portion in communication with said conduits to control the flow of industrial gas and oxygen therethrough, an oxygen by-pass line extending around said first valve means and being in communication with said source of oxygen and said nozzle element, a third valve means in said by-pass line, said second valve means comprising first and second valve members in communication with said sources of industrial gas and oxygen respectively, said first and second valve members and said third valve means each comprising movable valve plungers, said plungers being normally closed to prevent flow therethrough, and a lever means pivotally mounted on said body portion adapted to selectively engage and open said plungers.
Claim 2
Dependent Claim
286 words
A cutting torch comprising, a body portion having a chamber, a nozzle element at one end of said body portion, a first conduit extending through said body portion to said nozzle element, a second conduit extending through said body portion to said nozzle element, a first valve means movably mounted in said body portion and having first and second valve portions in communication with said first and second conduits respectively, said first and second valve portions having a plurality of first and second passageways formed therein respectively, adapted to register with said first and second conduits respectively, upon selective positioning of said first valve means, said passageways in each valve portion being of a different crosssectional size, means adapted to connect said first and second conduits to sources of industrial gas and oxygen respectively, whereupon industrial gas and oxygen can flow through said respective conduits upon the alignment of a passageway in one of said valve portions with said conduits by the movement of said first valve means, a second valve means in said body portion in communication with said conduits to control the flow of industrial gas and oxygen therethrough, an oxygen by-pass line extending around said first valve means and being in communication with said source of oxygen and said nozzle element, a third valve means in said by-pass line, said second valve means comprising first and second valve members in communication with said sources of industrial gas and oxygen respectively, said first and second valve members and said third valve means each comprising movable valve plungers, said plungers being normally closed to prevent flow therethrough, and a lever means pivotally mounted on said body portion adapted to selectively engage and open said plungers.
Claim 3
Dependent Claim
57 words
The torch of claim 1 wherein first, second and third valve plungers are in said first and second conduits and said by-pass line respectively, said lever means adapted to simultaneously open and close said first and second valve plungers and adapted to open said third valve plunger after said first and second valve plungers have been opened.
Claim 4
Dependent Claim
22 words
The torch of claim 2 wherein said lever means includes means to maintain it in various selected positions of its pivotal movement.
Claim 5
Dependent Claim
238 words
A cutting torch comprising, a body portion having a chamber, a nozzle element at one end of said body portion, a first conduit extending through said body portion to said nozzle element, a second conduit extending through said body portion to said nozzle element, a first valve means movably mounted in said body portion and having first and second valve portions in communication with said first and second conduits respectively, said first and second valve portions having a plurality of first and second passageways formed therein respectively, adapted to register with said first and second conduits respectively, upon selective positioning of said first valve means, said passageways in each valve portion being of a different cross-sectional size, means adapted to connect said first and second conduits to sources of industrial gas and oxygen respectively, whereupon industrial gas and oxygen can flow through said respective conduits upon the alignment of a passageway in one of said valve portions with said conduits by the movement of said first valve means, a second valve means in said body portion in communication with said conduits to control the flow of industrial gas and oxygen therethrough, said first valve means comprising a shaft portion having a skirt at its lower end, said skirt including first and second skirt portions, said first and second passageways being formed in said first and second skirt portions respectively, said first passageways being sealed from said second passageways.
Claim 6
Dependent Claim
238 words
A cutting torch comprising, a body portion having a chamber, a nozzle element at one end of said body portion, a first conduit extending through said body portion to said nozzle element, a second conduit extending through said body portion to said nozzle element, a first valve means movably mounted in said body portion and having first and second valve portions in communication with said first and second conduits respectively, said first and second valve portions having a plurality of first and second passageways formed therein respectively, adapted to register with said first and second conduits respectively, upon selective positioning of said first valve means, said passageways in each valve portion being of a different cross-sectional size, means adapted to connect said first and second conduits to sources of industrial gas and oxygen respectively, whereupon industrial gas and oxygen can flow through said respective conduits upon the alignment of a passageway in one of said valve portions with said conduits by the movement of said first valve means, a second valve means in said body portion in communication with said conduits to control the flow of industrial gas and oxygen therethrough, said first valve means comprising a shaft portion having a skirt at its lower end, said skirt including first and second skirt portions, said first and second passageways being formed in said first and second skirt portions respectively, said first passageways being sealed from said second passageways.
Claim 7
Dependent Claim
40 words
The torch of claim 4 wherein said first passageways extend around and through said first skirt portion and have a decreasing cross-sectional area, said second passageways extending around and through said second skirt portion and having an increasing cross-sectional area.
Claim 8
Dependent Claim
247 words
A cutting torch comprising, a body portion having a chamber, a nozzle element at one end of said body portion, a first conduit extending through said body portion to said nozzle element, a second conduit extending through said body portion to said nozzle element, a first valve means movably mounted in said body portion and having first and second valve portions in communication with said first and second conduits respectively, said first and second valve portions having a plurality of first and second passageways formed therein respectively, adapted to register with said first and second conduits respectively, upon selective positioning of said first valve means, said passageways in each valve portion being of a different cross-sectional size, means adapted to connect said first and second conduits to sources of industrial gas and oxygen respectively, whereupon industrial gas and oxygen can flow through said respective conduits upon the alignment of a passageway in one of said valve portions with said conduits by the movement of said first valve means, a second valve means in said body portion in communication with said conduits to control the flow of industrial gas and oxygen therethrough, said second valve means comprising first and second normally closed valve members in communication with said sources of industrial gas and oxygen respectively, and a lever means pivotally mounted on said body portion adapted to selectively engage and open said first and second valve members for supplying industrial gas and oxygen to said first valve means.
Claim 9
Dependent Claim
247 words
A cutting torch comprising, a body portion having a chamber, a nozzle element at one end of said body portion, a first conduit extending through said body portion to said nozzle element, a second conduit extending through said body portion to said nozzle element, a first valve means movably mounted in said body portion and having first and second valve portions in communication with said first and second conduits respectively, said first and second valve portions having a plurality of first and second passageways formed therein respectively, adapted to register with said first and second conduits respectively, upon selective positioning of said first valve means, said passageways in each valve portion being of a different cross-sectional size, means adapted to connect said first and second conduits to sources of industrial gas and oxygen respectively, whereupon industrial gas and oxygen can flow through said respective conduits upon the alignment of a passageway in one of said valve portions with said conduits by the movement of said first valve means, a second valve means in said body portion in communication with said conduits to control the flow of industrial gas and oxygen therethrough, said second valve means comprising first and second normally closed valve members in communication with said sources of industrial gas and oxygen respectively, and a lever means pivotally mounted on said body portion adapted to selectively engage and open said first and second valve members for supplying industrial gas and oxygen to said first valve means.
Claim 10
Dependent Claim
61 words
The torch of claim 6 wherein an oxygen by-pass line extends around said first valve means and is in communication with said sOurce of oxygen and said nozzle element, and a normally closed third valve means in said bypass line, said lever means being adapted to open said third valve means after said first and second valve members have been opened.
Claim 11
Dependent Claim
227 words
A cutting torch comprising, a body portion having a cavity formed therein, a nozzle element at one end of said body portion, first and second conduits in said body portion and being in communication with said cavity and said nozzle element and extending therebetween, third and fourth conduits in said body portion and being in communication with sources of industrial gas and oxygen respective, said third and fourth conduits also being in communication with said cavity, a rotary mixing valve mounted in said cavity adapted to permit selective mixtures of industrial gas and oxygen to flow to said nozzle element, said body portion having an oxygen by-pass line extending therethrough which is not in communication with said cavity and which extends to said nozzle element, said by-pass line being in communication with a source of oxygen, a first normally closed valve means in said third conduit, a second normally closed valve means in said fourth conduit, a third normally closed valve means in said by-pass line, each of said first, second and third valve means compressing movable valve plungers, and a lever means pivotally mounted on said body portion adapted to simultaneously open the valve plungers of said first and second valve means, said lever means adapted to open the valve plunger of said third valve means after said first and second valve means have been opened.
Claim 12
Dependent Claim
227 words
A cutting torch comprising, a body portion having a cavity formed therein, a nozzle element at one end of said body portion, first and second conduits in said body portion and being in communication with said cavity and said nozzle element and extending therebetween, third and fourth conduits in said body portion and being in communication with sources of industrial gas and oxygen respective, said third and fourth conduits also being in communication with said cavity, a rotary mixing valve mounted in said cavity adapted to permit selective mixtures of industrial gas and oxygen to flow to said nozzle element, said body portion having an oxygen by-pass line extending therethrough which is not in communication with said cavity and which extends to said nozzle element, said by-pass line being in communication with a source of oxygen, a first normally closed valve means in said third conduit, a second normally closed valve means in said fourth conduit, a third normally closed valve means in said by-pass line, each of said first, second and third valve means compressing movable valve plungers, and a lever means pivotally mounted on said body portion adapted to simultaneously open the valve plungers of said first and second valve means, said lever means adapted to open the valve plunger of said third valve means after said first and second valve means have been opened.
References Cited (Backward Citations)
US1316681A
Cited
US1989468A
Cited
US2101356A
Cited
US2520591A
Cited
US3108614A
Cited
US3530892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |