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:
Oct. 24, 1978
Filed:
Apr. 22, 1977
Daniel I Pomerantz, Lexington, MA (US);
P. R. Mallory & Co. Inc., Indianapolis, IN (US);
Abstract
A programmable timing device includes a plurality of rotatable discs, three of which are concentrically rotatable about a common axis, one of which is eccentrically rotatable about another axis, and three light sources. Opaque portions of the four discs periodically mask and expose the three light sources whereby detectors activate and deactivate the timing device and activate a machine function in a programmed sequence of two time intervals at two dissimilar power levels. The two power levels are determined by independently moving two of the light sources in horizontal directions whereby one of the four rotating discs periodically exposes each light source for variably controllable time periods during each of the programmed time intervals. The exposure of the horizontally movable light sources is further controlled by the rotation of another one of the four rotating discs by determining which of the light sources is exposed to the detector for actuating the machine function during each time interval.