Cutting guide for plasma torch

Details Cutting guide for plasma torch Cutting guide for plasma torch

2006-05-23

2006-05-23

Paschall, Mark (Department: 3742)

Electric heating

Metal heating

By arc

C219S121480, C219S121390, C266S070000, C408S078000, C408S11500B

Reexamination Certificate

active

07049541

ABSTRACT:
A guide that is used in conjunction with a plasma cutting torch includes a main circular ring having a small circular ring mounted on the outer periphery thereof. The small ring includes a bearing assembly and accommodates the plasma cutting torch. A guide bolt is mounted on the main circular ring and is attached to the workpiece and forms the center of a circular hole that will be cut with the plasma torch. Once the main ring is attached to the workpiece, the plasma torch is attached to the small ring. The torch and rings are then rotated about the bolt with the plasma torch activated to cut a hole that has a radius equal to the radius of the main circular ring plus the radius of the small ring.

REFERENCES:
patent: 3417979 (1968-12-01), Harold et al.
patent: 3880546 (1975-04-01), Segal
patent: 3886242 (1975-05-01), McGregor
patent: 3941358 (1976-03-01), Darling
patent: 4959520 (1990-09-01), Okada et al.
patent: 5651646 (1997-07-01), Banke et al.
patent: 5989485 (1999-11-01), Staacks et al.
patent: 6171032 (2001-01-01), Forche et al.

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