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:
Sep. 23, 1980
Filed:
Jul. 14, 1978
Applicant:
Inventor:
Guglielmo Rossi, Stutensee-Friedrichstal, DE;
Assignee:
Ranco Incorporated, Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 200 / ; 200251 ; 200261 ;
Abstract
An electrical snap acting switch is calibrated by deforming an unsupported part of a terminal strip which carries a fixed contact after assembly of the switch device, to predetermine the operating point of the switch contacts. Deformation of the fixed contact support strip is facilitated by apertures in the strip on opposite sides of the fixed contact. These apertures also serve to ventilate the make and break zone of the contacts to assist in ozone dispersal from this zone, minimizing arcing.