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:
Jan. 27, 1976
Filed:
Oct. 10, 1974
Applicant:
Inventors:
Matsuo Nishioka, Hirakata, JA;
Shunzo Oka, Hirakata, JA;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338174 ; 338130 ; 338180 ;
Abstract
An assembly for fine adjustment of a variable impedance mechanism is disclosed wherein a first disk-shaped rotary member, which functions as a knob, has a spiral ridge or groove formed on one side surface thereof for engagement with the teeth of a second disk-shaped rotary member or teethed wheel whose shaft is in turn coupled to the rotary shaft of a variable impedance element. When the first rotary member makes one rotation, the second rotary member is advanced one tooth, whereupon the fine adjustment of the variable impedance element is possible.