Stand-off cup for torch

Electric heating – Metal heating – By arc

Patent

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Details

21912148, 21912151, 219 75, B23K 900

Patent

active

051479974

ABSTRACT:
A cutting torch is provided circumjacent its tip with a stand-off cup which maintains a fixed distance between the torch orifice and the work piece. The distal end of the cup has a series of notches or windows which allow the operator to see the cutting arc and also permit escape of arc spatter. Between the notches are posts or castellations, at the distal end of which is a ring that maintains constant spacing between the cutting arc and a template, as the torch is guided around the edge of the template.

REFERENCES:
patent: 3872279 (1975-03-01), Fairbairn
patent: 4792657 (1988-12-01), Conley
patent: 4891489 (1990-01-01), Bollinger et al.
patent: 4924060 (1990-05-01), Delzenne
patent: 4940879 (1990-07-01), De-Swaan
patent: 5039837 (1991-08-01), Nourbakhsh et al.

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