The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 1990
Filed:
Apr. 24, 1989
Applicant:
Inventors:
Daniel M Broberg, Edina, MN (US);
Terry A Prentice, Bloomington, MN (US);
Assignee:
Century Mfg. Co., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191215 ; 21912157 ; 21912139 ; 21912148 ; 21912401 ;
Abstract
In connection with a plasma arc metal cutting apparatus, an electrode having vertical movement within a nozzle, said nozzle having a gas supply passing therethrough, an over-center spring mechanism holding the electrode in one operating position, a switch in one position energizing the electrode in engagement with the nozzle and said switch in a second position actuating the spring mechanism to snap the electrode to a position away from engagement with the nozzle and thus draw an arc between the electrode and the nozzle, the arc comprising a plasma flame to cut materials.