Patent US4511147A successfully refreshed from Google Patents.
US4511147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf swing training club
Assignee: Individual
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Filing: 1983-08-03
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Granted: 1985-04-16
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Expires: 2003-08-03
Abstract
Abstract An invention in a golf swing trainer device having a weighted head with an appearance that is similar to an enlarged iron golf club, and includes a shaft that is bent oppositely at spaced apart points therealong, to off-set a lower shaft portion outwardly from an upper shaft portion. The head is secured on one shaft end and a hand grip is telescoped over the other that includes contoured depressions to accommodate a golfer's fingers closed therearound and has elevated portions for fitting the V areas between the thumb and forefinger of a golfer's hands therealong, the grip for exactly positioning the golfers hands relative to the trainer shaft and head. The weighted head is formed from a metal rod that is bent into the general shape of a head of the enlarged club iron, such that the weight thereof will be centered outwardly and above a head center point and is open to provide a minimum air resistant when the trainer is swung.
Inventors
- 👤 William A. Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:21
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3623; A63B69/3632; A63B60/00; A63B60/06; A63B60/12; A63B60/08; A63B60/10; A63B60/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
110 words
A golf swing trainer comprising, a grip means for accommodating a golfer's hands closed therearound; a shaft having an end of an upper substantially straight portion thereof fitted to said grip means and a lower portion, said lower portion including a substantially straight portion positioned along an axis spaced from said upper portion and substantially parallel to the axis of said upper portion, said upper and lower portions being connected by a substantially straight portion connected to said upper and lower portions at substantially equal angles; and weighted head secured to the lower end of said lower shaft portion and extending outwardly therefrom, which head has an open center area.
Claim 2
Dependent Claim
110 words
A golf swing trainer comprising, a grip means for accommodating a golfer's hands closed therearound; a shaft having an end of an upper substantially straight portion thereof fitted to said grip means and a lower portion, said lower portion including a substantially straight portion positioned along an axis spaced from said upper portion and substantially parallel to the axis of said upper portion, said upper and lower portions being connected by a substantially straight portion connected to said upper and lower portions at substantially equal angles; and weighted head secured to the lower end of said lower shaft portion and extending outwardly therefrom, which head has an open center area.
Claim 3
Dependent Claim
88 words
A golf swing trainer as recited in claim 1, wherein the grip means is arranged for telescoping over the shaft upper portion end, aligned in the same plane with the weighted head, and includes a plurality of finger-receiving grooves and has a pair of raised portions extending outwardly, one substantially in the same direction as the head, which raised portions have converging lateral sides to accommodate the sides of a persons thumb and forefinger positioned therealong, for positioning the persons hands relative to said shaft and weighted head.
Claim 4
Dependent Claim
32 words
A golf swing trainer as recited in claim 1, wherein the offset distance between said upper and lower straight portions is two and one-half (21/2) inches plus or minus one-quarter (1/4) inch.
Claim 5
Dependent Claim
61 words
A golf swing trainer as recited in claim 3, wherein the spacing distance between the bends is nine and one-half (91/2) inches, plus or minus one-quarter (1/4) inch, the bend angles are twelve degrees (12°), plus or minus two degrees (2°), above and below the line of the shaft upper portion, for a shaft effective length of approximately thirty-five (35) inches.
Claim 6
Dependent Claim
35 words
A golf swing trainer as recited in claim 1, wherein the weighted head is constructed such that a center of mass thereof will be located outwardly from a vertical center line through the head center.
Claim 7
Dependent Claim
33 words
A golf swing trainer as recited in claim 1, wherein the weighted head is constructed such that a center of mass thereof will be located above a horizontal line through the head center.
Claim 8
Dependent Claim
45 words
A golf swing trainer as recited in claim 1, wherein the head is constructed of a metal round stock bent back upon itself in a general shape of an enlarged golf club head commonly known as an iron; and is coated with a resilient material.
Claim 9
Dependent Claim
17 words
A golf swing trainer as recited in claim 7, wherein the resilient material is a colored plastic.
Claim 10
Dependent Claim
28 words
A golf swing trainer as recited in claim 8, wherein the metal round stock is a cold rolled steel; and the resilient material is a yellow vinyl plastic.
Claim 11
Dependent Claim
78 words
A golf swing trainer as recited in claim 7, wherein the metal round stock is bent from a neck end that is connected to as an extension of the shaft lower portion end to form a base side that will be parallel to the ground when a golfer holds the trainer as he would addressing a golf ball, and from that base side is bent upwardly into a toe and thence back to the neck, forming the head.
Claim 12
Dependent Claim
113 words
A golf swing trainer as recited in claim 10, wherein the round stock is bent from a neck end of approximately four (4) inches at an angle of thirty-six degrees (36°), plus or minus two degrees (2°), into a base of approximately three and three-quarter (33/4) inches, and therefrom is bent at an angle upward from that base of thirty-six degrees (36°), plus or minus two degrees (2°), for a length of approximately two and one-half (21/2) inches, and thence is bent back into engagement with the shaft neck for a length of approximately five and three-quarter (53/4) inches, to have a weight of thirteen (13) ounces, plus or minus one (1) ounce.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |