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:
Apr. 20, 1982
Filed:
Jun. 30, 1980
Applicant:
Inventors:
Helmut Barkow, Steinbach, DE;
Karl Frank, Frankfurt am Main, DE;
Assignee:
Telefonbau und Normalzeit GmbH, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H04M / ;
U.S. Cl.
CPC ...
179164 ; 200 / ;
Abstract
A telephone hook switch having bounce contact spring which is formed like a frame with middle spring blades arched outwardly in opposite directions and attached at their lower ends with the attached lower ends held in a bearing slot of an operation part which connects to a switching balance. The operation part has a slot one one end for bearing onto the bounce contact spring. Several bounce contact springs and the associated outer springs may be combined like a comb over a stamped strip to be cut off after assembling. The operation part may also be formed comb-like of plastic.