Patent US3893672A successfully refreshed from Google Patents.
US3893672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club
Assignee: Individual
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Filing: 1974-05-23
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Granted: 1975-07-08
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Expires: 1994-05-23
Abstract
Abstract An improved golf club iron for effectively and consistently hitting a golf ball off of the fairway and other playing areas of the golf course. The iron club head includes a forwardly disposed flat surface interposed vertically between the sole and the lowermost portion of the club hitting face whereby the leading, lowermost vertical surface substantially reduces chances of mishitting the ball such as taking a fat divot or cutting the golf ball cover. The vertical flat surface is a non-hitting surface which terminates below the sweet spot on the inclined hitting surface of the golf club iron.
Inventors
- 👤 Theodore R Schonher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:43
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0433; A63B53/047; A63B60/00; A63B53/0458
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
In a golf club having a shaft and club head, said club head having a bottom surface sole disposed between a heel and toe, the sole of said club head having a horizontal baseline, said club head having a hosel interconnected with said shaft, said club head having a sloped, planer surface inclined with the vertical to define a loFt angle therebetween of between about 20* to 46*, said sloped hitting surface disposed between said heel and toe and having a centroid on said sloped hitting surface, the improvement which comprises: a blunt leading surface disposed between said toe and heel and extending vertically upward from said sole, said blunt leading surface being a non-hitting surface terminating with the intersection of said sloped surface below the centroid on the sloped hitting surface, said vertical leading surface being at least about one-sixteenth inch in vertical height from said baseline and less than about 70 percent of the vertical distance of the centroid from said baseline of the sole of said club.
Claim 2
Dependent Claim
170 words
In a golf club having a shaft and club head, said club head having a bottom surface sole disposed between a heel and toe, the sole of said club head having a horizontal baseline, said club head having a hosel interconnected with said shaft, said club head having a sloped, planer surface inclined with the vertical to define a loFt angle therebetween of between about 20* to 46*, said sloped hitting surface disposed between said heel and toe and having a centroid on said sloped hitting surface, the improvement which comprises: a blunt leading surface disposed between said toe and heel and extending vertically upward from said sole, said blunt leading surface being a non-hitting surface terminating with the intersection of said sloped surface below the centroid on the sloped hitting surface, said vertical leading surface being at least about one-sixteenth inch in vertical height from said baseline and less than about 70 percent of the vertical distance of the centroid from said baseline of the sole of said club.
Claim 3
Dependent Claim
40 words
The golf club in claim 1 wherein the vertical distance h of said blunt surface is between h (cos. theta ) 1/8 inch and h (cos. theta ) 5/16 inch, wherein theta is the angle of loft of said iron.
Claim 4
Dependent Claim
14 words
The golf club set forth in claim 1 wherein the bottom sole is flat.
Claim 5
Dependent Claim
14 words
The golf club set forth in claim 1 wherein the bottom sole is contoured.
Claim 6
Dependent Claim
22 words
The golf club in claim 1 wherein the intersection of the sloped hitting surface and the blunt leading vertical surface is beveled.
Claim 7
Dependent Claim
20 words
The golf club in claim 5 wherein the intersection of the blunt leading vertical surface and the sole is beveled.
Claim 8
Dependent Claim
150 words
In a golf club having a shaft and club head including a toe, a heel, and a bottom surface sole disposed between said heel and toe, the sole of said club head having a horizontal baseline, said club head having a hosel interconnected with said shaft, said club head having a planer sloped hitting surface inclined with a vertical defining a loft angle therebetween of between about 20* to 46*, said sloped hitting surface disposed between said heel and toe, the improvement comprising: a forewardly disposed lowermost non-hitting vertical surface, said vertical surface disposed between said toe and heel and extending vertically upward from said sole and terminating with the intersection of said sloped hitting surface, the vertical height of said vertical surface being between about (Cos. theta ) one-eighth inch and (Cos. theta ) five-sixteenths inch from said baseline, wherein theta is the loft angle of said golf club.
Claim 9
Dependent Claim
150 words
In a golf club having a shaft and club head including a toe, a heel, and a bottom surface sole disposed between said heel and toe, the sole of said club head having a horizontal baseline, said club head having a hosel interconnected with said shaft, said club head having a planer sloped hitting surface inclined with a vertical defining a loft angle therebetween of between about 20* to 46*, said sloped hitting surface disposed between said heel and toe, the improvement comprising: a forewardly disposed lowermost non-hitting vertical surface, said vertical surface disposed between said toe and heel and extending vertically upward from said sole and terminating with the intersection of said sloped hitting surface, the vertical height of said vertical surface being between about (Cos. theta ) one-eighth inch and (Cos. theta ) five-sixteenths inch from said baseline, wherein theta is the loft angle of said golf club.
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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |