Welding mask window door automatic operation

Details Welding mask window door automatic operation Welding mask window door automatic operation

1975-09-29

1977-03-15

Schroeder, Werner H.

Apparel

Guard or protector

For wearer's head

A61F 906

Patent

active

040115941

ABSTRACT:
An improved welding mask having a tinted window door that automatically closes as soon as a welding rod strikes an object that is intended to be welded, and wherein the door automatically opens and all electric current is shut the moment the welding arc is broken; the mask including an electrical circuit for accomplishing the same, the circuit including a transformer, relay and rectifier for activating a pair of door operating relays at opposite sides of the door, and the circuit extending through the welding torch and the work.

REFERENCES:
patent: 1643509 (1927-09-01), Moran
patent: 2154774 (1939-04-01), Rienacker et al.
patent: 2487183 (1949-11-01), Rohlf
patent: 2660728 (1953-12-01), Thornton
patent: 2678369 (1954-05-01), Van Hook

Affiliated with

Also associated with

Rating

Welding mask window door automatic operation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Welding mask window door automatic operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Welding mask window door automatic operation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-417535