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US 3,994,177 AGranted
Television tuner
AssigneeOak Industries Inc.
InventorsNorman D. Cappelle, Walter Meyer, Henry H. Tap
Life of this patent
Estimating the term…
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AssigneeOak Industries Inc.
InventorsNorman D. Cappelle, Walter Meyer, Henry H. Tap
Estimating the term…
A TV tuner has a housing and a rotating channel selector shaft mounted on the housing. There are a plurality of individual support members positioned by and mounted on parallel flatted areas of the shaft, which flatted areas vary in size to assure correct placement of the support members. Individual coil strips, each carrying a tuning screw, are fixed to the shaft assembly. A simplified clutching arrangement for controlling adjustment of the screws utilizes a coil spring to provide the initial force for moving a pinion gear into operating engagement with the tuning screws. The tuning screws are held by resilient arms which bias the head of the screws toward the shaft to thus firmly maintain the screws in any adjusted position. Each of the coil strips have contacts extending outwardly from one side and positioned to be in electrical and mechanical contact with cantilever spring members fastened to a printed circuit board which in turn is held by the housing.
A TV tuner having a housing and a rotating shaft in said housing, a plurality of spaced radially extending support members mounted on said shaft, said shaft having parallel flat portions of differing width, with the portions of greatest width being adjacent an end of the shaft, a shoulder on the shaft at the end of each flat portion, at least some of said support members being positioned on separate flat portions and abutting said shoulders.
Dependencies are inferred from the claim text.