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US4040633A Expired / Lapsed US ⏱️ 0.0 years remaining

Golf swing training machine

Assignee: Individual
•
Filing: 1976-02-26
•
Granted: 1977-08-09
•
Expires: 1996-02-26
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Abstract

Abstract There is described a golf practice device having a golf club guiding member consisting of a single tube wound in the form of a helix having in excess of one and a half turns. The diameter of the helix is somewhat less than the arc of a club head during the golf swing and the guide is supported on the ground or other surface such that the helix lies approximately in the plane defined by the shaft of a golf club during the normal golf swing. One end of the helix terminates adjacent the impact region of the club with the golf ball. The helical guide member extends away from the point of impact in the direction of the back swing. The pitch of the helix increases so that the overlapping turns of the helix are divergent in going from the point of impact to the top of the back swing region of the golf swing. The overlapping turns of the helix are held in fixed spaced relation by a supporting leg in the form of an open loop, the ends of the loop supporting the adjacent overlapping portions of the helical guide. The one end of the helix may be braced from the supporting leg.

Inventors

  • 👤 Frank A. Sciarrillo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 11:40
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3621; A63B69/36211; A63B69/3667; A63B71/00; A63B71/02; A63B71/023; A63B2071/026; A63B2071/027; A63B2225/00; A63B2225/09; A63B2225/093

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 100 words
A golf practice device comprising a helically shaped guide having at least one and a half turns to provide overlapping portions, means supporting the guide from a horizontal surface with the axis of the helix tilted from the horizontal so as to extend perpendicular to the plane of a normal golf swing, one end of the helical guide terminating adjacent the lowermost part of the helix adjacent the supporting surface and extending from the point of termination in the direction of the backswing to provide spaced overlapping sections of the helical guide in the backswing region of the golf swing.
Claim 2
Dependent Claim 100 words
A golf practice device comprising a helically shaped guide having at least one and a half turns to provide overlapping portions, means supporting the guide from a horizontal surface with the axis of the helix tilted from the horizontal so as to extend perpendicular to the plane of a normal golf swing, one end of the helical guide terminating adjacent the lowermost part of the helix adjacent the supporting surface and extending from the point of termination in the direction of the backswing to provide spaced overlapping sections of the helical guide in the backswing region of the golf swing.
Claim 3
Dependent Claim 43 words
The practice device of claim 1 wherein the pitch of the helix increases in the direction of the backswing so that the overlapping portions of the helical guide diverge from the impact region to the region at the top of the golf backswing.
Claim 4
Dependent Claim 42 words
The practice device of claim 1 wherein the guide supporting means includes a supporting leg in the form of an open loop, the ends of the open loop being attached respectively to separate turns of the helical guide in the backswing region.
Claim 5
Dependent Claim 40 words
The device of claim 2 wherein the other end of the helical guide terminates in the region of the maximum normal backswing, and means rigidly connecting said other end of the guide to the adjacent overlapping portion of the guide.
Claim 6
Dependent Claim 23 words
The device of claim 4 wherein the connecting means is adjustable to vary the spacing between the overlapping turns of the helical guide.
Claim 7
Dependent Claim 44 words
The device of claim 3 further including an additional guide member supported at one end by said supporting leg, the additional guide member extending toward and terminating at the impact region and being positioned radially outwardly of and substantially parallel to the helical guide.
Claim 8
Dependent Claim 21 words
A golf practice device of claim 1 wherein the helical guide member is of substantially constant radius throughout the length thereof.

References Cited (Backward Citations)

US1854392A Cited
US1960787A Cited
US3339927A Cited
US3730531A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-08-08 1981-02-07 1981-08-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-08-08 1985-02-07 1985-08-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-08-08 1989-02-07 1989-08-09 $7700.00 Window Closed / Lapsed

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