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. 04, 1977
Filed:
Apr. 11, 1975
Applicant:
Inventor:
Joseph J Mahon, Libertyville, IL (US);
Assignee:
The Singer Company, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ;
U.S. Cl.
CPC ...
200 / ;
Abstract
The follower tip of the switch operating bell-crank lever can ride on the large diameter of the axially movable, rotatably driven cam or on axial movement of the cam can drop onto the smaller diameter of the cam to close one switch and, upon further axial movement, the follower can move further in to a pseudo inner diameter to close a second switch. The lever acts to prevent return axial movement of the cam until the cam notch is aligned with the follower and the follower no longer interferes with axial movement.