← Back to Patent Explorer
US3985363A Expired / Lapsed US ⏱️ 0.0 years remaining

Golf club wood

Assignee: Acushnet Co
•
Filing: 1974-10-02
•
Granted: 1976-10-12
•
Expires: 1994-10-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An improved wood type golf club is disclosed. A reinforcing member is provided in the club whereby the strength of attachment of the shaft to the club is greater than with conventional wood type clubs. Additionally, because of the shape of the reinforcing member, a portion of the weight of the club head can be moved out to the peripheral regions thereof thereby providing a greater moment of inertia and a correspondingly better club. Furthermore, by means of providing edge radii of at least 0.15 inches and 0.25 inches on the bottom and top leading edges respectively of the face of the club and with a "trip step" there is a marked reduction in wind resistance thus lowering the power needed to swing the club or increasing club head velocity for equal energy input.

Inventors

  • 👤 John W. Jepson
  • 👤 Walter Reid
  • 👤 Robert A. Brown

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 05:03
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0416; A63B53/042; A63B53/0425; A63B53/0466; A63B60/00; A63B2209/00; A63B2209/02; A63B2225/00; A63B2225/01

Claims Analysis

Total Claims: 39
Claim 1
Independent Claim 223 words
A wood type golf club having a club head and a shaft and said club head having a top surface and a bottom surface and a leading surface for striking a golf ball comprising: a. a club head block; b. a reinforcing collar having front and back faces, the back face being affixed to said club head block, said reinforcing collar being substantially the same in peripheral dimension as the peripheral dimension of the club head block immediately adjacent the reinforcing collar and said reinforcing collar having a hole of at least one half of a square inch in cross sectional area therethrough from front to back; c. a face plate integral with the front face of said reinforcing collar, said face plate being in intimate contact with the club head block substantially throughout the area of the hole in the reinforcing collar; d. a rounded edge on the top leading edge of the club head, said rounded edge having a leading, a middle and a downstream point and having a radius of a least about 0.25 inches; e. a trip step in the radius specified in sub-paragraph (d), said trip step being located between the middle and downstream points of the radius and being from about 0.005 to about 0.035 inches in height; and f. a shaft affixed to said reinforcing collar.
Claim 2
Dependent Claim 223 words
A wood type golf club having a club head and a shaft and said club head having a top surface and a bottom surface and a leading surface for striking a golf ball comprising: a. a club head block; b. a reinforcing collar having front and back faces, the back face being affixed to said club head block, said reinforcing collar being substantially the same in peripheral dimension as the peripheral dimension of the club head block immediately adjacent the reinforcing collar and said reinforcing collar having a hole of at least one half of a square inch in cross sectional area therethrough from front to back; c. a face plate integral with the front face of said reinforcing collar, said face plate being in intimate contact with the club head block substantially throughout the area of the hole in the reinforcing collar; d. a rounded edge on the top leading edge of the club head, said rounded edge having a leading, a middle and a downstream point and having a radius of a least about 0.25 inches; e. a trip step in the radius specified in sub-paragraph (d), said trip step being located between the middle and downstream points of the radius and being from about 0.005 to about 0.035 inches in height; and f. a shaft affixed to said reinforcing collar.
Claim 3
Dependent Claim 11 words
The gold club of claim 1 further comprising a sole plate.
Claim 4
Dependent Claim 16 words
The golf club of claim 2 wherein the sole plate is integral with the reinforcing collar.
Claim 5
Dependent Claim 34 words
The golf club of claim 1 wherein there is a projection on the club head block, said projection having the same cross sectional area as the area of the hole of the reinforcing collar.
Claim 6
Dependent Claim 20 words
The golf club of claim 4 wherein the projection is the same thickness as the thickness of the reinforcing collar.
Claim 7
Dependent Claim 20 words
The golf club of claim 1 wherein the reinforcing collar and the face plate are a unitary one piece structure.
Claim 8
Dependent Claim 17 words
The golf club of claim 1 wherein the reinforcing collar and the face plate are separate pieces.
Claim 9
Dependent Claim 31 words
The golf club of claim 7 wherein the face plate is provided with bosses and the reinforcing collar with recesses and wherein the bosses correspond to recesses in the reinforcing collar.
Claim 10
Dependent Claim 13 words
The golf club of claim 1 wherein the club head block is wood.
Claim 11
Dependent Claim 15 words
The golf club of claim 9 wherein the club head block is of a maple.
Claim 12
Dependent Claim 12 words
The golf club of claim 1 wherein the reinforcing collar is metal.
Claim 13
Dependent Claim 24 words
The golf club of claim 11 wherein the reinforcing collar is composed of a material selected from the group consisting of aluminum and magnesium.
Claim 14
Dependent Claim 12 words
The golf club of claim 1 wherein the reinforcing collar is plastic.
Claim 15
Dependent Claim 21 words
The gold club of claim 13 wherein the plastic is selected from the group consisting of epoxies, polycarbonates, phenolics and butyrates.
Claim 16
Dependent Claim 15 words
The golf club of claim 13 wherein there is a filler in the reinforcing collar.
Claim 17
Dependent Claim 13 words
The golf club of claim 15 wherein the filler is a reinforcing filler.
Claim 18
Dependent Claim 13 words
The golf club of claim 16 wherein the reinforcing filler is glass fibers.
Claim 19
Dependent Claim 16 words
The golf club of claim 15 wherein the filler is more dense than the plastic material.
Claim 20
Dependent Claim 12 words
The golf club of claim 18 wherein the filler is barium sulphate.
Claim 21
Dependent Claim 26 words
The golf club of claim 1 wherein the leading edge of the bottom of the club head has a radius of at least about 0.15 inches.
Claim 22
Dependent Claim 16 words
The golf club of claim 20 wherein there is a trip step in the bottom radius.
Claim 23
Dependent Claim 235 words
A wood type gold club comprising: a. a club head block of wood; b. a reinforcing collar having front and back faces, the back face being affixed to said club head block, said reinforcing collar being of a material selected from the group consisting of aluminum and magnesium, said reinforcing collar being substantially the same in peripheral dimension as the peripheral dimension of the club head block immediately adjacent the reinforcing collar having a hole of at least one square inch in cross sectional area therethrough from front to back; c. a projection on the club head block, said projection having the same cross sectional area as the area of the hole of the reinforcing collar and said projection being the same thickness as the thickness of the reinforcing collar; d. a face plate integral with the front face of said reinforcing collar, said plate being in intimate contact with the projection on the club head block; e. a rounded edge on the top leading edge of the club head, said rounded edge having a leading, a middle and a downstream point and having a radius of at least about 0.25 inches; f. a trip step in the radius specified in subparagraph (e), said trip step being located between the middle and downstream points of the radius from about 0.005 to about 0.035 inches in height; and g. a shaft affixed to said reinforcing collar.
Claim 24
Dependent Claim 235 words
A wood type gold club comprising: a. a club head block of wood; b. a reinforcing collar having front and back faces, the back face being affixed to said club head block, said reinforcing collar being of a material selected from the group consisting of aluminum and magnesium, said reinforcing collar being substantially the same in peripheral dimension as the peripheral dimension of the club head block immediately adjacent the reinforcing collar having a hole of at least one square inch in cross sectional area therethrough from front to back; c. a projection on the club head block, said projection having the same cross sectional area as the area of the hole of the reinforcing collar and said projection being the same thickness as the thickness of the reinforcing collar; d. a face plate integral with the front face of said reinforcing collar, said plate being in intimate contact with the projection on the club head block; e. a rounded edge on the top leading edge of the club head, said rounded edge having a leading, a middle and a downstream point and having a radius of at least about 0.25 inches; f. a trip step in the radius specified in subparagraph (e), said trip step being located between the middle and downstream points of the radius from about 0.005 to about 0.035 inches in height; and g. a shaft affixed to said reinforcing collar.
Claim 25
Dependent Claim 26 words
The golf club of claim 22 wherein the leading edge of the bottom of the club head has a radius of at least about 0.15 inches.
Claim 26
Dependent Claim 11 words
The golf club of claim 22 further comprising a sole plate.
Claim 27
Dependent Claim 20 words
The golf club of claim 24 wherein the face plate and the reinforcing collar are a unitary one piece structure.
Claim 28
Dependent Claim 13 words
The golf club of claim 21 wherein the club head block is maple.
Claim 29
Dependent Claim 19 words
The golf club of claim 1 wherein the top of the club head has a generally continuous convex surface.
Claim 30
Dependent Claim 19 words
The golf club of claim 22 wherein the top of the club head has a generally continuous convex surface.
Claim 31
Dependent Claim 108 words
In a wood type golf club having a club head and a shaft and said club head having a top surface and a bottom surface and a leading surface for striking a golf ball, the improvement comprising a rounded edge on the top leading edge of the club head, said rounded edge having a leading, a middle and a downstream point and having a radius of at least about 0.25 inches and a trip step in the radius of the rounded edge, said trip step being located between the middle and downstream points of the radius and being from about 0.005 inches to about 0.035 inches in height.
Claim 32
Dependent Claim 108 words
In a wood type golf club having a club head and a shaft and said club head having a top surface and a bottom surface and a leading surface for striking a golf ball, the improvement comprising a rounded edge on the top leading edge of the club head, said rounded edge having a leading, a middle and a downstream point and having a radius of at least about 0.25 inches and a trip step in the radius of the rounded edge, said trip step being located between the middle and downstream points of the radius and being from about 0.005 inches to about 0.035 inches in height.
Claim 33
Dependent Claim 11 words
The gold club of claim 1 further comprising a sole plate.
Claim 34
Dependent Claim 20 words
The golf club of claim 30 wherein the sole plate and the reinforcing collar are a unitary one piece structure.
Claim 35
Dependent Claim 11 words
The gold club of claim 22 further comprising a sole plate.
Claim 36
Dependent Claim 20 words
The golf club of claim 32 wherein the sole plate and the reinforcing collar are a unitary one piece structure.
Claim 37
Dependent Claim 152 words
A "wood type" golf club having a club head and a shaft comprising: a. a club head block of wood; b. a reinforcing collar having front and back faces, the back face being affixed to said club head block, said reinforcing collar being substantially the same in peripheral dimension as the peripheral dimension of the club head block immediately adjacent the reinforcing collar; c. a face plate which is a separate piece from the reinforcing collar but which is integrally affixed to the front face of said reinforcing collar; d. a shaft affixed to said reinforcing collar; e. the reinforcing collar having a hole in the central portion thereof of at least one-half of a square inch in cross sectional area therethrough from front to back; and f. said face plate being in intimate contact with the said club head block substantially throughout the area of the hole in the reinforcing collar.
Claim 38
Dependent Claim 152 words
A "wood type" golf club having a club head and a shaft comprising: a. a club head block of wood; b. a reinforcing collar having front and back faces, the back face being affixed to said club head block, said reinforcing collar being substantially the same in peripheral dimension as the peripheral dimension of the club head block immediately adjacent the reinforcing collar; c. a face plate which is a separate piece from the reinforcing collar but which is integrally affixed to the front face of said reinforcing collar; d. a shaft affixed to said reinforcing collar; e. the reinforcing collar having a hole in the central portion thereof of at least one-half of a square inch in cross sectional area therethrough from front to back; and f. said face plate being in intimate contact with the said club head block substantially throughout the area of the hole in the reinforcing collar.
Claim 39
Dependent Claim 28 words
The golf club of claim 34 further including a reinforcing sleeve, said reinforcing sleeve reinforcing sleeve reinforcing the shaft at its point of attachment to the reinforcing collar.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-10-12 1980-04-12 1980-10-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-10-12 1984-04-12 1984-10-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-10-12 1988-04-12 1988-10-12 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag