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. 01, 1981
Filed:
Jan. 16, 1980
Harry Greenwald, Whitestone, NY (US);
Greenwald Electro-Mechanical Consultants, Inc., Whitestone, NY (US);
Abstract
A control device for a coin operated mechanism wherein the device includes a ratchet wheel formed having a plurality of teeth each having a front and a back face defining a tooth apex. The back face of each tooth and the front face of the next adjacent tooth define a well therebetween. The front face of each tooth is formed having a step which receives a ratchet follower to displace a normally open switch to its closed state at the end of each stepping operation of the ratchet wheel to operate the mechanism. A star wheel is operatively driven by a timing mechanism when the switch is in its closed state and is disposed to engage the ratchet wheel to cause rotation of the ratchet wheel conjointly upon rotation of the star wheel. The ratchet follower is displaced out of engagement with the ratchet tooth step and rides up the front face of the tooth over the apex and drops down the back face of the tooth, upon conjoint rotation of the star wheel and the ratchet wheel, whereby the ratchet follower is received within the next adjacent well thereby to open the switch.