Patent US3604631A successfully refreshed from Google Patents.
US3604631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding and cutting torch
Assignee: Individual
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Filing: 1970-01-12
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Granted: 1971-09-14
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Expires: 1990-01-12
Abstract
Abstract A welding and cutting torch comprising a handle portion having a volume control valve rotatably mounted therein which is in communication with sources of industrial gas and oxygen. The volume control valve includes two valve portions which control the flow of gas and oxygen therethrough respectively. The two valve portions are coordinated with each other so that the operator can rotate the volume control valve to select the proper gas-oxygen mixture. The two valve portions are in communication with a master valve which permits preselected amounts of the gasoxygen mixture to flow therethrough for lighting and heating operations. The master valve may also be moved to an ''''off'''' position to prevent the flow of gas-oxygen mixture therethrough. The master valve is connected to the torch nozzle or tip. The torch also includes an oxygen line which bypasses the volume control valve so that additional oxygen can be supplied to the nozzle or tip when cutting operations are to be performed.
Inventors
- 👤 Berwyn E Etter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:08
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: 13
Claim 1
Independent Claim
219 words
A torch, comprising, a handle portion having first and second openings formed therein adapted to be in communication with sources of pressurized oxygen and industrial gas respectively, said handle portion having first and second spaced-apart chambers formed therein which are in communication with said first and second openings respectively, said handle portion having third and fourth spaced-apart chambers formed therein which have first and second conduits in communication therewith, a rotatable volume control valve means rotatably mounted in said handle portion having a first valve portion positioned between said first and third chambers and having a second valve portion positioned between said second and fourth chambers, each of said first and second valve portions having a plurality of spaced-apart and offset bores formed therein to permit selective communication between said first and third chambers and between said second and fourth chambers, whereby the flow of gas and oxygen through said volume control valve can be coordinated, a nozzle means having at least a conduit means extending therefrom, a second valve means between said conduit means and said first and second conduits, said second valve means adapted to be movable from a first position wherein gas and oxygen will flow to said nozzle means, to a second position wherein gas and oxygen is prevented from flowing to said nozzle means.
Claim 2
Dependent Claim
219 words
A torch, comprising, a handle portion having first and second openings formed therein adapted to be in communication with sources of pressurized oxygen and industrial gas respectively, said handle portion having first and second spaced-apart chambers formed therein which are in communication with said first and second openings respectively, said handle portion having third and fourth spaced-apart chambers formed therein which have first and second conduits in communication therewith, a rotatable volume control valve means rotatably mounted in said handle portion having a first valve portion positioned between said first and third chambers and having a second valve portion positioned between said second and fourth chambers, each of said first and second valve portions having a plurality of spaced-apart and offset bores formed therein to permit selective communication between said first and third chambers and between said second and fourth chambers, whereby the flow of gas and oxygen through said volume control valve can be coordinated, a nozzle means having at least a conduit means extending therefrom, a second valve means between said conduit means and said first and second conduits, said second valve means adapted to be movable from a first position wherein gas and oxygen will flow to said nozzle means, to a second position wherein gas and oxygen is prevented from flowing to said nozzle means.
Claim 3
Dependent Claim
23 words
The torch of claim 1 wherein said conduit means comprises third and fourth conduits which are in communication with said second valve means.
Claim 4
Dependent Claim
34 words
The torch of claim 2 wherein said second valve means is also movable to a third position wherein gas and oxygen is supplied to said nozzle means at a reduced rate for ignition purposes.
Claim 5
Dependent Claim
39 words
The torch of claim 3 wherein said fourth conduit has a diameter less than said third conduit and wherein the gas and oxygen mixture flows through said fourth conduit when said second valve means is in its ''''pilot'''' position.
Claim 6
Dependent Claim
27 words
The torch of claim 4 wherein the gas and oxygen mixture flows through said third conduit when said second valve means is in its said first position.
Claim 7
Dependent Claim
39 words
The torch of claim 1 wherein an oxygen bypass line extends between said first opening and said nozzle means, said bypass line having a manually operated valve means for supplying additional oxygen to the nozzle means for cutting purposes.
Claim 8
Dependent Claim
46 words
The torch of claim 1 wherein each of the bores in said first valve portion have a predetermined diameter and wherein each of the bores in said second valve portion have a predetermined diameter to permit said coordination of the flow of gas and oxygen therethrough.
Claim 9
Dependent Claim
32 words
The torch of claim 1 wherein said volume control valve means includes means thereon for indicating the relative position of said control valve means with respect to said first and second chambers.
Claim 10
Dependent Claim
187 words
A cutting torch, comprising, a handle portion having a chamber, a nozzle element on one end of said handle portion, a first conduit extending through said handle to said nozzle element, a second conduit extending through said handle to said nozzle element, a valve element movably mounted in said handle portion and having first and second portions in communication with said first and second conduits, respectively; each portion of said valve having a plurality of passageways, with one each of said passageways in each portion adapted to register with said first and second conduits, respectively, upon selective positioning of said valve element, said passageways in each portion being of a different cross-sectional size, means adapted to connect said first and second conduits to sources of oxygen and industrial gas, respectively, whereupon oxygen and industrial gas can flow through said respective conduits upon the alignment of a passageway i5 one of said valve portions with said conduits by the movement of said valve element, and a control valve in said handle portion and in communication with said conduits to control the flow of oxygen and industrial gas therethrough.
Claim 11
Dependent Claim
187 words
A cutting torch, comprising, a handle portion having a chamber, a nozzle element on one end of said handle portion, a first conduit extending through said handle to said nozzle element, a second conduit extending through said handle to said nozzle element, a valve element movably mounted in said handle portion and having first and second portions in communication with said first and second conduits, respectively; each portion of said valve having a plurality of passageways, with one each of said passageways in each portion adapted to register with said first and second conduits, respectively, upon selective positioning of said valve element, said passageways in each portion being of a different cross-sectional size, means adapted to connect said first and second conduits to sources of oxygen and industrial gas, respectively, whereupon oxygen and industrial gas can flow through said respective conduits upon the alignment of a passageway i5 one of said valve portions with said conduits by the movement of said valve element, and a control valve in said handle portion and in communication with said conduits to control the flow of oxygen and industrial gas therethrough.
Claim 12
Dependent Claim
36 words
The device of claim 9 wherein an oxygen bypass line extends around said valve element and is in communication with said source of oxygen and said nozzle element, and as control valve in said bypass line.
Claim 13
Dependent Claim
29 words
The device of claim 10 wherein said control valve includes means for passing varying amounts of industrial gas and oxygen to said nozzle for ignition and for cutting purposes.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |