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:
Dec. 07, 1976
Filed:
May. 02, 1975
Applicant:
Inventors:
Helmut Eberwein, Brendlorenzen, DT;
Wolfgang Scherzer, Bad Neustadt, Saale, DT;
Assignee:
Preh Elektrofeinmechanische Werke, Bad Neustadt, Saale, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ; H05K / ;
U.S. Cl.
CPC ...
200 / ; 2001 / ; 200275 ; 200292 ; 174 685 ; 3171 / ;
Abstract
An ultrasonic remote control device of the type having an integrated switching network formed in a multilayer printed circuit and mechanical switching means whereby at least some of the circuit connection paths intersect in a cross connection matrix with the switching means manually operable to connect each intersecting path to a common potential, for example ground.