US3711805A — High-frequency coil having a synthetic resin base

Claim 1

Independent Claim 182 words

A high-frequency coil comprising a winding supported on the upper side of a synthetic resin base member having two opposite side faces and provided with a plurality of wire-shaped connecting contacts which also serve for mounting the base on a printed circuit board, the base of the coil including a plurality of approximately parallel grooves at the lower side which terminate at one end at one of said two opposite side faces, the other end of the grooves being situated inside the base, each groove containing a wire-shaped contact with each wire-shaped contact having a first portion partly contained within one of said grooves in which it is a tight fit and from which it protrudes in part, the protruding part serving as a soldering tag for making external connections whereas the remaining portion of the wire-shaped contact extends in line with the bottom of the groove and is embedded in the material of the base with an end portion protruding from the second one of said two opposite side faces, and the coil winding being connected to said protruding end portion.

Claim 2

Dependent Claim 182 words

A high-frequency coil comprising a winding supported on the upper side of a synthetic resin base member having two opposite side faces and provided with a plurality of wire-shaped connecting contacts which also serve for mounting the base on a printed circuit board, the base of the coil including a plurality of approximately parallel grooves at the lower side which terminate at one end at one of said two opposite side faces, the other end of the grooves being situated inside the base, each groove containing a wire-shaped contact with each wire-shaped contact having a first portion partly contained within one of said grooves in which it is a tight fit and from which it protrudes in part, the protruding part serving as a soldering tag for making external connections whereas the remaining portion of the wire-shaped contact extends in line with the bottom of the groove and is embedded in the material of the base with an end portion protruding from the second one of said two opposite side faces, and the coil winding being connected to said protruding end portion.

Claim 3

Dependent Claim 82 words

A high-frequency coil as claimed in claim 1, wherein said first portion of each contact is adapted to be bent into a position at right angles to said remaining portion and wherein the length and the depth of the grooves are chosen such that the tag parts of the wire-shaped connecting contacts contained therein protrude equally far from the base, both in the straight condition and in the condition where they are bent at right angles around the material of the base.

Claim 4

Dependent Claim 104 words

A high-frequency coil as claimed in claim 1 further comprising a coil former composed of synthetic resin extending perpendicular to the base and having a pair of flanges, one of said flanges forming an integral unit with the base, around which a ferrite frame which serves as a magnetic yoke is pRovided, characterized in that the edge of said one flange of the coil former coheres with an elevation member formed on a portion of the base member so as to provide a space between the one flange and the coil base, and means securing one side of the ferrite frame within said space.

Claim 5

Dependent Claim 66 words

A high frequency coil as claimed in claim 3 wherein said first portion of each contact is adapted to be bent into a position at right angles to said remaining portion and wherein the length and depth of the grooves are arranged so that the tag parts of the wire-shaped contacts protrude the same distance from the base in either the straight or bent position thereof.

Claim 6

Dependent Claim 176 words

A high-frequency coil comprising a coil former with a base member for mounting the coil to a board and having a pair of opposed side walls, a winding mounted on the coil former with its axis perpendicular to the base member, a plurality of parallel grooves located in the bottom surface of the base member and extending perpendicular to the coil axis, said grooves extending from a first one of said side walls to a point inside the base member, a plurality of wire-shaped contacts each located with a first part in a respective groove and one end protruding from said one side wall for making external connections thereto and a second part in line with its respective groove and totally embedded within the base member with a second end protruding from the other of said side walls to provide a connecting terminal for said winding, said first part of each contact being adapted to be bent into a position perpendicular to the second part so as to protrude from said bottom surface of the base.

Claim 7

Dependent Claim 176 words

A high-frequency coil comprising a coil former with a base member for mounting the coil to a board and having a pair of opposed side walls, a winding mounted on the coil former with its axis perpendicular to the base member, a plurality of parallel grooves located in the bottom surface of the base member and extending perpendicular to the coil axis, said grooves extending from a first one of said side walls to a point inside the base member, a plurality of wire-shaped contacts each located with a first part in a respective groove and one end protruding from said one side wall for making external connections thereto and a second part in line with its respective groove and totally embedded within the base member with a second end protruding from the other of said side walls to provide a connecting terminal for said winding, said first part of each contact being adapted to be bent into a position perpendicular to the second part so as to protrude from said bottom surface of the base.

Claim 8

Dependent Claim 48 words

A coil as claimed in claim 5 wherein said grooves are dimensioned so that said one end of the wire-shaped contacts protrude substantially the same distance from the side wall and the bottom surface of the base member in the in-line and bent positions, respectively, of the contacts.

Claim 9

Dependent Claim 54 words

A coil as claimed in claim 6 wherein said coil former extends perpendicular to the base member and includes a flange that is an integral unit with the base member and forms a recess with a part of the base member, and a magnetic yoke frame member with one end located within said recess.

Claim 10

Dependent Claim 26 words

A coil as claimed in claim 6 further comprising a cylindrical ferrite core axially movable within said coil former to adjust the inductance of the coil.

Claim 11

Dependent Claim 24 words

A coil as claimed in claim 6 wherein said base member has a generally rectangular shape and is composed of a synthetic resin material.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1976-01-16	1976-07-17	1977-01-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1980-01-16	1980-07-17	1981-01-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1984-01-16	1984-07-17	1985-01-16	$7700.00	Window Closed / Lapsed

High-frequency coil having a synthetic resin base

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