Adjustable golf club

Details Adjustable golf club Adjustable golf club

1987-03-02

1988-04-05

Pinkham, Richard C.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 801, 273168, A63B 5306

Patent

active

047354143

ABSTRACT:
A pivot assembly includes a shank member to which a club shaft is attached. A connecting member having detent balls is attached to the shank member from which a dirt shield and a bearing disc depend. The disc has a pair of bearing faces and includes a pair of journal bearings extending therefrom. The head has a hollow core in which are a pair of facing ring bearings which engage the disc bearing faces and journal bearings. A pair of abutments upstand from the head assembly outside the cavity and are formed with first and second sets of depressions at different spacings from a reference plane. As the shaft is rotated from one extreme position to the other, the detent balls engage the depressions in one abutment or the other alternately to provide closely spaced detent positions of the club shaft.

REFERENCES:
patent: 198383 (1964-06-01), Butler
patent: 1599336 (1926-09-01), Lindgren
patent: 2661952 (1953-12-01), Jackson
patent: 3096982 (1963-07-01), Bassin
patent: 3204962 (1965-09-01), McCormick
patent: 3206206 (1965-09-01), Santosuosso
patent: 3214170 (1965-10-01), Warnock
patent: 4240636 (1980-12-01), Swenson
patent: 4289311 (1981-09-01), Smith
patent: 4508342 (1985-04-01), Drake
patent: 4519612 (1985-05-01), Tsao
patent: 4523758 (1985-06-01), Guendling, Jr.

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