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. 01, 1977
Filed:
Jun. 24, 1976
Tugio Ohigashi, Osaka, JA;
Junichi Ariga, Osaka, JA;
Matsushita Electric Industrial Co., Ltd., Osaka, JA;
Abstract
A channel selection mechanism for an electronic tuner of a television receiver comprises a motor-driven shaft, a voltage selection rotary switch with the contact arm mounted on the shaft, a channel number indicating drum mounted on the shaft for rotation with the rotary switch, a cam wheel having notches on the periphery thereof and mounted on the shaft for rotation with the rotary switch and the drum, and a cam follower pivoted at one end to engage the working surface of the cam wheel to provide swivel movements. The motor is energized by a motor start switch which is operated until a desired channel is reached. A motor stop switch is provided to operate in response to the swivel movements of the cam follower to deenergize the motor to precisely align the channel indicating number to a window provided in the receiver housing.