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:
May. 22, 1979
Filed:
Dec. 20, 1976
Harry Greenwald, Whitestone, NY (US);
Walter Kidde & Company, Inc., Clifton, NJ (US);
Abstract
A combination coin operated mechanism and a non-reusable frangible coin-simulating element that is operative to activate the mechanism. The mechanism is of the type having a coin slide which is adapted to receive the frangible element, and wherein the presence of said element in the mechanism is operative to allow projected movement of the coin slide to an operative position. A camming plate is provided to engage with and deflect the frangible element upon projected movement of the coin slide. A constraining plate is also provided to engage with the deflected frangible element upon projected movement of the coin slide and limit further movement of said element, whereby said element fractures upon continued projected movement of said slide. The camming plate and the constraining plate are also responsive to the presence of a non-fracturable element in the coin operated mechanism to cause said non-fracturable element to jam said mechanism and prevent the continued movement of the coin slide toward its operative position.