Geometrical instruments – Gauge – Golf stance – swing or club analysis
Patent
1994-12-12
1995-11-28
Wirthlin, Alvin
Geometrical instruments
Gauge
Golf stance, swing or club analysis
G01B 700
Patent
active
054696275
ABSTRACT:
An apparatus for fitting golf club length and head-to-shaft angle to an individual person. The fitting club shaft is in two telescoping portions. A conventional grip is provided at the end of the first portion and the end of the second portion is pivotally connected to a conventional club head. A generally "L"shaped electrically insulating panel has one leg extending into the second shaft portion and the other leg extending into a cavity in the head. A first series of longitudinally spaced electrical contacts on the first end are adapted to be contacted by a connection contact on the movable first shaft portion to send an electrical signal indicating club length. A second series of spaced electrical contacts are radially arranged on the second leg about the shaft pivot point. The second series of contacts is adapted to be contacted by a second connection contact to send an electrical signal indicating head-to-shaft angle. A person grasps the fitting club grip and assumes a normal golf stance. A digital display provides a visible readout on an adjacent tower of the club length and head-to-shaft angle selected by the person. A rack attached to the tower carries a number of normal clubs having different lengths and angles, so that the person can select a club having dimensions corresponding to the display.
REFERENCES:
patent: 3953033 (1976-04-01), Kelly et al.
patent: 4104802 (1978-08-01), Johnston
patent: 4788774 (1988-12-01), Boone
patent: 4885847 (1989-12-01), Korfanta
"Gage Helps Golfer Fit Clubs to His Stance", Popular Science Monthly, Jan. 1933, p. 53.
Denny Bradley J.
Hannon Richard H.
Duncan John R.
Gilliam Frank D.
Plop Golf Company
Wirthlin Alvin
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