Amusement devices: games – Puzzles – Take-aparts and put-togethers
Patent
1984-04-23
1989-05-09
Marlo, George L.
Amusement devices: games
Puzzles
Take-aparts and put-togethers
273175, 273169, A63B 5304
Patent
active
048282650
ABSTRACT:
A wood-type golf club having a deep, channel-shaped cavity formed in the top surface of the club extending rearwardly from the ball striking face. The ball striking face has a height which is at least 50% of the distance between the top surface and the bottom surface of the club head. The depth of the cavity is at least 1/4 inch from the top surface of the club head the width of the cavity is at least 1/2 inch. The cavity preferably is further characterized as having an aspect ratio, defined as the square of the width at a transverse cross section of the cavity divided by the area of that transverse cross section, of less than 20. The cavity preferably has an average transverse gradient, defined as an angle between a line from the bottom low point of the cavity at a transverse cross section of the cavity to the cavity edge and a line across the top of the cavity at that cross section, greater than 3 degrees along the cavity's length.
REFERENCES:
patent: D192515 (1962-04-01), Henrich
patent: 780776 (1905-01-01), Brown
patent: 1913821 (1933-06-01), Stumpf
patent: 2003951 (1935-06-01), Pepin
patent: 2041676 (1936-05-01), Gallagher
patent: 2550846 (1951-05-01), Milligan
patent: 3035839 (1962-05-01), Coglianese
patent: 3162206 (1964-03-01), Sabia
patent: 3430963 (1969-03-01), Wozniak et al.
patent: 3468544 (1969-09-01), Antonious
patent: 3997170 (1976-12-01), Goldberg
patent: 4065133 (1977-12-01), Gordos
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