Apparatus for automatic adjustment of an inductor in a tuned circuit
First Claim
1. In a tuned circuit of the type including an inductor mounted on a circuit board, wherein said inductor comprises a conductor having respective first and second ends connected to respective first and second points on said circuit board, said conductor having first, second and third portions, said first portion including a section in the shape of an extensible coil extending from said circuit board, said third portion including an extensible section extending from said circuit board, said second portion being connected between said first and second portions, and wherein said circuit board is formed with an opening therethrough located below said second portion, an apparatus for adjusting said inductor comprising:
- first means extending through said opening in said circuit board for exerting mechanical force against said second portion of said inductor;
second means for exerting mechanical force against said second portion extending in a direction opposite to that of said first means; and
control means connected to said first and second means for controlling said first and second means to simultaneously extend or compress said first and third portions.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is an apparatus for adjusting an inductor that is mounted on a circuit board. The inductor is of the type comprising two extensible sections connected at one respective end to the circuit board and connected at the other respective end by a connecting portion integral to the inductor. The electrical value of the inductor is adjusted by mechanically engaging the connecting portion between first and second push rods and moving the connecting portion so as to simultaneously extend or compress the two extensible sections. The first push rod extends through an opening in the circuit board to apply mechanical force against the connecting portion and the second push rod extends from above the circuit board so as to clamp the connecting portion between the first and second push rods. In one embodiment, the linear displacement of the first push rod is controllable to selectively advance or retract the first push rod, while the second push rod exerts a substantially constant force sufficient to collapse the two extensible sections of the inductor to the extent permitted by the linear displacement of the first push rod.
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Citations
6 Claims
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1. In a tuned circuit of the type including an inductor mounted on a circuit board, wherein said inductor comprises a conductor having respective first and second ends connected to respective first and second points on said circuit board, said conductor having first, second and third portions, said first portion including a section in the shape of an extensible coil extending from said circuit board, said third portion including an extensible section extending from said circuit board, said second portion being connected between said first and second portions, and wherein said circuit board is formed with an opening therethrough located below said second portion, an apparatus for adjusting said inductor comprising:
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first means extending through said opening in said circuit board for exerting mechanical force against said second portion of said inductor; second means for exerting mechanical force against said second portion extending in a direction opposite to that of said first means; and control means connected to said first and second means for controlling said first and second means to simultaneously extend or compress said first and third portions. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification