Patent US3856283A successfully refreshed from Google Patents.
US3856283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe cutting and beveling tool
Assignee: Individual
•
Filing: 1972-12-27
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Granted: 1974-12-24
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Expires: 1992-12-27
Abstract
Abstract A simplified device for cutting and beveling the end of a section of pipe is disclosed. The device includes a flexible strip of smooth hard surfaced material which is circumferentially wrapped around the outer periphery of the pipe for more than one turn with the edges of the wrappings aligned. A mount is positioned on the outer periphery of the pipe so that it straddles the strip and a cutting torch is adjustably held on an inclined surface of the mount. The mount is securely coupled to the pipe by taking up the slack of a cord loop on the front end of the mount which is linked to a cord loop on the back end of the mount. Such an arrangement provides for the mount to be easily manually pushed or pulled about the pipe by providing for the loops of cord to slip along the smooth hard surface of the strip while the mount is being guided along the circumferential path formed by the sides of the wrappings of the strip.
Inventors
- 👤 J Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:50
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
Apparatus for cutting and beveling a pipe comprising: a strip of flexible material having a smooth hard surface for wrapping about the surface of a pipe for more than one turn with the sides of the successive wrappings aligned; a mount for supporting a cutting torch, said mount adapted to be positioned on the surface of the pipe with at least one of the side surfaces thereof contacting the sides of said wrappings; and flexible means for holding said mount against the surface of the pipe by interconnecting the ends of the mount while lying against the surface of the strip; whereby said mount can be advanced about the surface of the pipe while being guided by the sides of said wrappings and while said flexible means slips about the surface of said strip.
Claim 2
Dependent Claim
134 words
Apparatus for cutting and beveling a pipe comprising: a strip of flexible material having a smooth hard surface for wrapping about the surface of a pipe for more than one turn with the sides of the successive wrappings aligned; a mount for supporting a cutting torch, said mount adapted to be positioned on the surface of the pipe with at least one of the side surfaces thereof contacting the sides of said wrappings; and flexible means for holding said mount against the surface of the pipe by interconnecting the ends of the mount while lying against the surface of the strip; whereby said mount can be advanced about the surface of the pipe while being guided by the sides of said wrappings and while said flexible means slips about the surface of said strip.
Claim 3
Dependent Claim
50 words
The invention in accordance with claim 1 wherein said flexible means comprises a first loop of cord having its ends attached to the back end of said mount and a second loop of cord linking said first loop and having its ends attached to the front end of said mount.
Claim 4
Dependent Claim
61 words
The invention in accordance with claim 1 wherein side wheels are provided on said mount, and wherein said mount is adapted to be positioned with its side wheels contacting the surface of the pipe while straddling said strip with at least the face of the wheels on one side of the mount contacting the sides of the wrappings of said strip.
Claim 5
Dependent Claim
72 words
The invention in accordance with claim 1 wherein said mount is provided with an inclined supporting surface; wherein said mount includes a clamping plate adjustably held against said inclined supporting surface; and wherein said cutting torch is held by said clamping plate to cut the pipe so as to provide a bevel on the end thereof in accordance with the angle that said clamping plate is held against said inclined supporting surface.
Claim 6
Dependent Claim
27 words
The invention in accordance with claim 1 wherein said strip is formed of an asbestos compound, and wherein said flexible means is formed of a nylon material.
Claim 7
Dependent Claim
47 words
The invention in accordance with claim 2 including means on the front end of the mount for gripping one of the ends of the cord forming the second loops after said cord has been taken up for the purpose of tightly coupling the mount to the pipe.
Claim 8
Dependent Claim
163 words
Apparatus for cutting and beveling a pipe comprising: an elongated, thin, strip of readily bendable material for wrapping closely about and gripping the surface of a pipe to be cut, said wrapping continuing about the pipe for more than one turn with the side edges of the successive wrappings aligned; a torch mount having wheels on the sides thereof adapted to straddle the strip with its wheels contacting the surface of the pipe and closely fitting next to the side edges of the wrappings of the strip; and a flexible member for tightly holding said mont against the surface of the pipe by interconnecting the ends of the mount while bearing against the surface of the strip; said flexible member adapted to slip along the surface of said strip when said torch mount is manually moved circumferentially about the pipe while its wheels roll along the surface of the pipe and are guided by the side edges of the wrappings of the strip.
Claim 9
Dependent Claim
163 words
Apparatus for cutting and beveling a pipe comprising: an elongated, thin, strip of readily bendable material for wrapping closely about and gripping the surface of a pipe to be cut, said wrapping continuing about the pipe for more than one turn with the side edges of the successive wrappings aligned; a torch mount having wheels on the sides thereof adapted to straddle the strip with its wheels contacting the surface of the pipe and closely fitting next to the side edges of the wrappings of the strip; and a flexible member for tightly holding said mont against the surface of the pipe by interconnecting the ends of the mount while bearing against the surface of the strip; said flexible member adapted to slip along the surface of said strip when said torch mount is manually moved circumferentially about the pipe while its wheels roll along the surface of the pipe and are guided by the side edges of the wrappings of the strip.
Claim 10
Dependent Claim
158 words
A torch cutting and beveling apparatus including: an elongated guide member for wrapping closely around a pipe for more than one turn with the sides of the successive wrappings aligned, said guide member being formed of a pliable material having a smooth outer surface; a manually movable mount havinag means for mounting a torch thereon, said mount adapted to be positioned on the pipe so as to be guided by the sides of the wrappings of said guide member; and a flexible means encircling said guide member and attached by its ends ot said mount for tightly holding said mount on said pipe, said flexible means having a surface slidingly engaging the smooth outer surface of said guide member; whereby when a force is applied on said mount, the surface of said flexible means slides relative to the surface of said guide member while said mont is guided by the sides of the wrappings circumferentially about the pipe.
Claim 11
Dependent Claim
158 words
A torch cutting and beveling apparatus including: an elongated guide member for wrapping closely around a pipe for more than one turn with the sides of the successive wrappings aligned, said guide member being formed of a pliable material having a smooth outer surface; a manually movable mount havinag means for mounting a torch thereon, said mount adapted to be positioned on the pipe so as to be guided by the sides of the wrappings of said guide member; and a flexible means encircling said guide member and attached by its ends ot said mount for tightly holding said mount on said pipe, said flexible means having a surface slidingly engaging the smooth outer surface of said guide member; whereby when a force is applied on said mount, the surface of said flexible means slides relative to the surface of said guide member while said mont is guided by the sides of the wrappings circumferentially about the pipe.
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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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |