Patent US3662999A successfully refreshed from Google Patents.
US3662999A
Expired / Lapsed
US
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Apparatus for cutting thick-walled tubular elements
Assignee: Vodafone GmbH
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Filing: 1970-10-23
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Granted: 1972-05-16
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Expires: 1990-10-23
Abstract
Abstract A cutting torch is mounted on a carriage which, in turn, is mounted on an arm pivoting on an axis parallel to the axis of a pipe to be cut. Cutting is carried out in a plane, and from two different pivot positions along correspondingly different directions to obtain two merging kerfs.
Inventors
- 👤 Herbert Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:45
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/005; B23K7/006; B23K7/002; B23K7/003
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
Apparatus for cutting a length from a thick-walled hollow pipe, such as tubing produced by continuous casting, using a cutting torch, comprising: a support means adapted for maintaining particular relative position to the pipe to be cut; a pivot arm journaled on the support means, the pivot axis extending parallel to the axis of the pipe for enabling said arm to locate in two angularly displaced planar positions about said pipe; and carriage means disposed on the pivot arm for displacement along the arm during cutting for producing a separate kerf in each of said two positions of the arm, the carriage means supporting, moving and orienting the cutting torch relative to the arm and to the pipe during cutting when the arm has particular orientation to the pipe to produce two separate, smoothly merged kerfs aligned in a common plane.
Claim 2
Dependent Claim
141 words
Apparatus for cutting a length from a thick-walled hollow pipe, such as tubing produced by continuous casting, using a cutting torch, comprising: a support means adapted for maintaining particular relative position to the pipe to be cut; a pivot arm journaled on the support means, the pivot axis extending parallel to the axis of the pipe for enabling said arm to locate in two angularly displaced planar positions about said pipe; and carriage means disposed on the pivot arm for displacement along the arm during cutting for producing a separate kerf in each of said two positions of the arm, the carriage means supporting, moving and orienting the cutting torch relative to the arm and to the pipe during cutting when the arm has particular orientation to the pipe to produce two separate, smoothly merged kerfs aligned in a common plane.
Claim 3
Dependent Claim
33 words
Apparatus as in claim 1, including means for maintaining the pivot arm in between two particular positions relative to the pivot axis, the positions being apart by an angle of 90* to 100*.
Claim 4
Dependent Claim
32 words
Apparatus as in claim 1, including means for maintaining the torch on the carriage so that the torch flame is directed down and at an angle of about 40* to the horizontal.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |