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:
Nov. 19, 1996
Filed:
Mar. 24, 1995
Applicant:
Inventor:
Thomas Seitz, Zug, CH;
Assignee:
Landis & Gyr Technology Innovation AG, Zug, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
296021 ; 194319 ;
Abstract
Coin detector may be manufactured in several steps. An integrated circuit board (ICB) having conductive material on its surface is covered with an etching mask where conductive elements are to be located. The unmasked portion of the ICB surface is etched off, and then the etching mask is removed. The ICB substrate is attached with a detector circuit located on an etched portion of the ICB surface. An oscillator circuit is connected to a conductive coil. If the coin detector uses a two-layer coil, the coils are connected by a through-going board. The structure is encased in a synthetic material.