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. 30, 1978
Filed:
Feb. 04, 1977
Applicant:
Inventors:
Yukichi Hayashi, Sakado, JA;
Masayuki Tamura, Sakado, JA;
Osamu Sugimoto, Sakado, JA;
Shinichi Kobayashi, Kamifukuoka, JA;
Masanori Tanaka, Sakado, JA;
Assignee:
Nippon Coinco Co., Ltd., Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G07F / ;
U.S. Cl.
CPC ...
1941 / ;
Abstract
A coin checking device for a vending machine capable of electrically examining whether an inserted coin is a true coin or a counterfeit one as well as kind of the coin. The device detects a waveform representing passage of the coin and also whether the peak level of the waveform appears in a predetermined window or not and, if the peak level is detected in the window, judges that the inserted coin is a true one.