Patent US1820141A successfully refreshed from Google Patents.
Patent US4852879A successfully refreshed from Google Patents.
US4852879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf putter head
Assignee: Individual
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Filing: 1987-06-17
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Granted: 1989-08-01
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Expires: 2007-06-17
Abstract
Abstract Disclosed is a golf putter head having a body with an elongated ball-contacting surface and a generally hollow center disposed between two massive ends. The putter head has a center of mass aligned with the center of the ball-contacting surface. The putter head includes a handle-engaging hosel having a central axis aligned with the centroid of the ball-contacting surface. The hossel is configured to arrange the axis of the putter shaft so that its also is aligned with the center of the ball-contacting surface, and lies generally along that surface. A central web aligned with the center is provided in the hollow cavity. The central web has an upper inclined surface bearing readily-visible indicia to aid in aligning the center of the putter surface with the golf ball.
Inventors
- 👤 Truman F. Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:36
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0487; A63B53/0441; A63B53/02; A63B53/021; A63B53/045; A63B53/0454
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
A golf putter head comprising: a body having an elongated generally planar ball-contacting surface (40) with a generally hollow center disposed between two massive ends (16, 18); said head having a center of mass (CM) generally aligned behind a center C of said ball-contacting surface along a line (44) extending generally in the direction of swing of the golf putter; and means (14) for engaging a handle comprising an elongated hosel (14a) extending from the top of said head and having a longitudinal axis extending generally through the center of mass (CM) of said head and a generally parallel socket (14b) for receiving a handle having a longitudinal axis, said socket 14(b) being laterally offset from said hosel (14a) and having an elongated axis lying in the plane of said ball-engaging surface (40) so as to extend through the center (C) thereof, said socket (14b) adapted for coaxial alignment with the longitudinal axis of said handle (12).
Claim 2
Dependent Claim
157 words
A golf putter head comprising: a body having an elongated generally planar ball-contacting surface (40) with a generally hollow center disposed between two massive ends (16, 18); said head having a center of mass (CM) generally aligned behind a center C of said ball-contacting surface along a line (44) extending generally in the direction of swing of the golf putter; and means (14) for engaging a handle comprising an elongated hosel (14a) extending from the top of said head and having a longitudinal axis extending generally through the center of mass (CM) of said head and a generally parallel socket (14b) for receiving a handle having a longitudinal axis, said socket 14(b) being laterally offset from said hosel (14a) and having an elongated axis lying in the plane of said ball-engaging surface (40) so as to extend through the center (C) thereof, said socket (14b) adapted for coaxial alignment with the longitudinal axis of said handle (12).
Claim 3
Dependent Claim
31 words
The head of claim 1 further comprising an interior wall in a central portion of said head, dividing the hollow center of said body into a pair of side-by-side hollow cavities.
Claim 4
Dependent Claim
34 words
The head of claim 2 wherein said interior wall includes indicia on its surface generally aligned with both the center of mass (CM) of said head and the center C of said ball-engaging surface.
Claim 5
Dependent Claim
70 words
The head of claim 2 wherein said hollow center is generally C-shaped in cross section and comprises a front wall having said ball-contacting surface, intermediate a top and a bottom wall, with said means for engaging a handle joined to said top wall, said front, top and bottom walls extending between said massive ends and said interior wall generally mutually perpendicular to said front, said top and said bottom walls.
Claim 6
Dependent Claim
58 words
The head of claim 1 wherein said body has a vertical height (H) less than the diameter of a golf ball to be putted by said putter, ranging between 70% and 80% of the golf ball diameter, to facilitate alignment of the center of mass (CM) of said head with the center of mass of the golf ball.
Claim 7
Dependent Claim
37 words
The head of claim 5 wherein said putter head has an axial length (L) longer than the golf ball to be putted by said putter, ranging between 3.1 and 3.5 times the diameter of the golf ball.
Claim 8
Dependent Claim
39 words
The head of claim 5 wherein the hollow center of said head is elongated along the central axis of the head, having a length ranging between approximately 65% and approximately 75% of the axial length of the putter head.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |