US4560165A — Golf practice device

Claim 1

Independent Claim 142 words

A golf practice device for a golfer, comprising: a base; a platform rotatably connected to the base for the golfer to stand on, the base remaining stationary when the platform rotates in a clockwise or a counterclockwise direction in a horizontal plane of rotation; a variable tensioning means connected to the platform for imposing a rotation retarding tension on the platform; a tension adjusting means connected to the variable tensioning means for selectively adjusting the rotation retarding tension; and means for limiting the rotation between the platform and base to a predetermined small angle achieved during a golf club swing for minimizing the the rotational movement of the golfer relative to the base and for providing a signal when a sufficient torque is applied to the platform to overcome said rotation retarding tension and rotate said platform said predetermined angle from rest.

Claim 2

Dependent Claim 142 words

A golf practice device for a golfer, comprising: a base; a platform rotatably connected to the base for the golfer to stand on, the base remaining stationary when the platform rotates in a clockwise or a counterclockwise direction in a horizontal plane of rotation; a variable tensioning means connected to the platform for imposing a rotation retarding tension on the platform; a tension adjusting means connected to the variable tensioning means for selectively adjusting the rotation retarding tension; and means for limiting the rotation between the platform and base to a predetermined small angle achieved during a golf club swing for minimizing the the rotational movement of the golfer relative to the base and for providing a signal when a sufficient torque is applied to the platform to overcome said rotation retarding tension and rotate said platform said predetermined angle from rest.

Claim 3

Dependent Claim 127 words

A golf pratice device for a golfer, comprising: a base; a platform for the golfer to stand on; a rotatable mounting connected to the base and the platform, said mounting allowing the platform to rotate clockwise and counterclockwise in a horizontal plane, said base remaining stationary during such rotation; a tensioning means connected to the platform for providing resistance to the rotation of the platform in one direction; and a movement stop connected to the base, said movement stop preventing rotation of the platform beyond a predetermined small angle of rotation achieved during a golfing swing for minimizing rotation of the golfer, the small angle of rotation being measured from a resting position of the platform to a stopped position of the platform caused by said movement

Claim 4

Dependent Claim 127 words

A golf pratice device for a golfer, comprising: a base; a platform for the golfer to stand on; a rotatable mounting connected to the base and the platform, said mounting allowing the platform to rotate clockwise and counterclockwise in a horizontal plane, said base remaining stationary during such rotation; a tensioning means connected to the platform for providing resistance to the rotation of the platform in one direction; and a movement stop connected to the base, said movement stop preventing rotation of the platform beyond a predetermined small angle of rotation achieved during a golfing swing for minimizing rotation of the golfer, the small angle of rotation being measured from a resting position of the platform to a stopped position of the platform caused by said movement

Claim 5

Dependent Claim 44 words

The golf practice device as recited in claim 2, further comprising: a resting stop connected to the base, and an extension on the platform contacting the resting stop when the platform is in the resting position and the movement stop in the stopped position.

Claim 6

Dependent Claim 31 words

The golf practice device as recited in claim 2, further comprising: an indicator means for providing a signal when the platform has rotated from the resting position to the stopped position.

Claim 7

Dependent Claim 55 words

The golf practice device as recited in claim 4 wherein the indicator means includes an electrical circuit that is open in the resting position and is closed by movement to the stopped position, said electrical circuit including a first contact on the platform engageable with a second contact on the base in the stopped position.

Claim 8

Dependent Claim 16 words

The golf practice device as recited in claim 5 wherein the indicator means includes a light.

Claim 9

Dependent Claim 19 words

The golf practice device as recited in claim 5 wherein the indicator means includes an electrical noise generating means.

Claim 10

Dependent Claim 135 words

A golf practice device for use by a golfer to develop a proper and consistent torque through the body to the feet from the start of downswing, comprising, a base, a horizontal platform mounted on the base to pivot about a vertical axis and having space for positioning the golfer's feet on either side of said axis, means for resisting pivoting of said platform in response to the torque developed by the golfer's downswing, means for limiting the pivoting between the platform and base to a small amount responsive to said torque for minimizing the pivoting of the golfer relative to the base during a golfing swing and including means for indicating at least one predetermined magnitude of that torque when developed by the downswing for the golfer to practice achieving that magnitude of torque.

Claim 11

Dependent Claim 135 words

A golf practice device for use by a golfer to develop a proper and consistent torque through the body to the feet from the start of downswing, comprising, a base, a horizontal platform mounted on the base to pivot about a vertical axis and having space for positioning the golfer's feet on either side of said axis, means for resisting pivoting of said platform in response to the torque developed by the golfer's downswing, means for limiting the pivoting between the platform and base to a small amount responsive to said torque for minimizing the pivoting of the golfer relative to the base during a golfing swing and including means for indicating at least one predetermined magnitude of that torque when developed by the downswing for the golfer to practice achieving that magnitude of torque.

Claim 12

Dependent Claim 23 words

The device of claim 8 in which said pivot resisting means includes an adjustable means for selecting different predetermined magnitudes of torque resistance.

Claim 13

Dependent Claim 31 words

The device of claim 8 or 9 in which said indicating means includes a stop for allowing a preselected amount of pivoting when the said predetermined magnitude of torque is achieved.

Claim 14

Dependent Claim 28 words

The device of claim 8 or 9 in which said indicating means includes electrical means for producing a signal when the said predetermined magnitude of torque is achieved.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1988-12-23	1989-06-24	1989-12-24	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1992-12-23	1993-06-24	1993-12-24	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1996-12-23	1997-06-24	1997-12-24	$7700.00	Window Closed / Lapsed

Golf practice device

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