US4063206A — Tunable electrical component

Claim 1

Independent Claim 170 words

An electrical component comprising a first coil of electrically conductive material having a plurality of windings, an adjustable shorting screw disposed in line with the longitudinal axis of said coil, said shorting screw being adapted to rotate on at least a portion of said windings and translate along said longitudinal axis to vary the electrical inductance of said coil, a mass of dielectric material defining a generally cylindrically shaped hollow shaft therein opening onto one end of said mass, at least a portion of said first coil being partially embedded in said mass around the defining wall of said shaft, said screw being adapted to translate at least partially into and out of said shaft and first coil, and a rotatable sleeve defining a hollow cylindrically shaped chamber therein opening onto one end of said sleeve, said mass having a cylindrically shaped surface adapted to fit at least partially in said chamber in relatively close conforming rotatable relation therewith, said screw being attached to the other end of said sleeve.

Claim 2

Dependent Claim 170 words

An electrical component comprising a first coil of electrically conductive material having a plurality of windings, an adjustable shorting screw disposed in line with the longitudinal axis of said coil, said shorting screw being adapted to rotate on at least a portion of said windings and translate along said longitudinal axis to vary the electrical inductance of said coil, a mass of dielectric material defining a generally cylindrically shaped hollow shaft therein opening onto one end of said mass, at least a portion of said first coil being partially embedded in said mass around the defining wall of said shaft, said screw being adapted to translate at least partially into and out of said shaft and first coil, and a rotatable sleeve defining a hollow cylindrically shaped chamber therein opening onto one end of said sleeve, said mass having a cylindrically shaped surface adapted to fit at least partially in said chamber in relatively close conforming rotatable relation therewith, said screw being attached to the other end of said sleeve.

Claim 3

Dependent Claim 33 words

The electrical component of claim 1 wherein said sleeve comprises a cap of electrically conductive material forming said other end of said sleeve, and a dielectric material forming the remainder of said sleeve.

Claim 4

Dependent Claim 18 words

The electrical component of claim 2 further comprising means for electrically connecting a radio antenna to said cap.

Claim 5

Dependent Claim 56 words

The electrical component of claim 1 further comprising a circular scale of graduations disposed around at least a portion of the periphery of said sleeve on an end portion thereof at said one end of said sleeve, and an index marker formed on the periphery of said mass for tracking said scale as said sleeve rotates.

Claim 6

Dependent Claim 55 words

The electrical component of claim 4 further comprising a series of gradations formed on the periphery of said mass perpendicular to said index marker, said gradations being spaced apart so as to track the translation of said one end of said sleeve along the surface of said mass as said screw rotates on said windings.

Claim 7

Dependent Claim 42 words

The electrical component of claim 1 further comprising means for inhibiting the flow of moisture through said one end of said sleeve, between the periphery of said mass and the defining wall of said chamber, toward said other end of said sleeve.

Claim 8

Dependent Claim 35 words

The electrical component of claim 6 wherein said inhibiting means comprises a circular slot formed in the periphery of said mass and opening onto said chamber defining wall, and an O-ring disposed in said slot.

Claim 9

Dependent Claim 38 words

The electrical component of claim 1 further comprising a second coil of electrically conductive material having a plurality of windings disposed in end-to-end alignment with said first coil, the opposing ends of said coils being electrically connected together.

Claim 10

Dependent Claim 23 words

The electrical component of claim 8 further comprising terminal means for making an external electrical connection to said opposing ends of said coils.

Claim 11

Dependent Claim 99 words

The electrical component of claim 1 further comprising a second coil of electrically conductive material having a plurality of windings disposed in end-to-end alignment with said first coil and being embedded in said mass on the opposite side of said first coil from said one end of said mass, the opposing ends of said coils being electrically connected together through said mass, and terminal means partially projecting into the other end of said mass and being electrically connected through the center of said second coil to said opposing ends, for making an external electrical connection to said opposing ends.

Claim 12

Dependent Claim 43 words

The electrical component of claim 10 further comprising a base constructed of electrically conductive material fixedly attached to said other end of said mass, said terminal means projecting into an interior void defined by said base and being electrically insulated from said base.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-12-12	1981-06-13	1981-12-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-12-12	1985-06-13	1985-12-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-12-12	1989-06-13	1989-12-13	$7700.00	Window Closed / Lapsed

Tunable electrical component

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