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:
Oct. 31, 1978
Filed:
Mar. 15, 1977
Katsuo Ito, Kanazawa, JP;
Kazunori Yoshimura, Kanazawa, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Abstract
A television tuner including a fine tuning mechanism, said mechanism comprising a cam body provided to a sleeve rotatably disposed around the operating shaft, said cam body having a cam surface adapted to convert rotary motion to reciprocating motion, and fine tuning means including a bobbin having a coil around the outside thereof, and a plunger having at one end a core adapted to be disposed within said bobbin, said plunger being L-shaped and composed of a plunger body provided with a core at one end and an arm portion at the other end, said arm portion being kept in contact with said cam surface at the free end thereof so that the plunger reciprocates said core within said bobbin with the rotation of said sleeve.