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US 4,155,060 AGranted
Rotary preset tuner
OwnerHisao Fujimurainventor
Life of this patent
Estimating the term…
Abstract
A rotary preset tuner comprising a plurality of adjustable memory slugs, a single tuning member capable of being rotated in any direction, a sliding member connected to variable condenser elements and arranged so as to enable reciprocating movement thereof along guide members, and a sliding member reciprocation means for reciprocating the sliding member by rotating the tuning member. Tuning is provided by rotating the tuning member and reciprocating the sliding member to select a desired one of the plurality of adjustable memory slugs, the sliding member being resiliently abutted against the selected memory slug.
Claims8
A rotary present tuner comprising:
- (a) a single tuning member provided with a plurality of adjustable memory slugs capable of being rotated in any direction;
- (b) a sliding member connected to a variable tuner and arranged to move by reciprocating motion along a guide;
- (c) a sliding member reciprocating moving means for providing reciprocating movement to said sliding member by rotational operation of said tuning member;
- said rotational operation being adapted to select a desired one of the plurality of adjustable memory slugs while said sliding member is reciprocated and moved;
- said sliding member being in resilient contact with said one of the selected memory slugs to provide tuning;
- and
- (d) said sliding member reciprocating moving means including recesses provided in the tuning member and a swingable member resiliently fitted in said recesses which cooperatively contacts the sliding member as it disengages from contact with each of the respective recesses of the tuning member due to the rotation of the tuning member, said swingable member further sliding the sliding member in a predetermined direction as it is disengaged from contact with each respective memory slug.
4 more elements
Dependencies are inferred from the claim text.