Amusement devices: games – Puzzles – Take-aparts and put-togethers
Patent
1991-03-14
1993-03-02
Millin, V.
Amusement devices: games
Puzzles
Take-aparts and put-togethers
273167J, 273 80B, A63B 5300, A63B 5304
Patent
active
051902893
ABSTRACT:
A golf club is composed of a head, a shaft, a grip and the like, and includes a roughened surface portion capable of reducing the value of air resistance by forming a turbulent boundary layer around the head when a golfer swings. The golf club, the roughened surface portion is annularly formed in a peripheral portion of the face portion of the head a neck portion and a socket portion of the head and/or at least a portion of the shaft adjacent to the head.
REFERENCES:
patent: 703519 (1902-07-01), Becker
patent: 1396470 (1921-11-01), Taylor
patent: 1528017 (1925-03-01), Gammeter
patent: 1637735 (1927-08-01), Collinson
patent: 2088095 (1937-07-01), Sargent et al.
patent: 2908502 (1959-10-01), Bradstreet
patent: 2954231 (1960-09-01), Macintyre
patent: 3836153 (1974-09-01), Dance, Jr.
patent: 3869126 (1975-03-01), Thompson
patent: 3975023 (1976-08-01), Inamori
patent: 3985363 (1976-10-01), Jepson et al.
patent: 3989861 (1976-11-01), Rasmussen
patent: 4023802 (1977-05-01), Jepson et al.
patent: 4065133 (1977-12-01), Gordos
patent: 4077632 (1978-03-01), Taylor
patent: 4188032 (1980-02-01), Yanagioka
patent: 4213614 (1980-07-01), Philippi
patent: 4552713 (1985-11-01), Cavicchioli
patent: 4754974 (1988-07-01), Kobayashi
patent: 4768787 (1988-09-01), Shira
patent: 4792140 (1988-12-01), Yamaguchi et al.
patent: 4793616 (1988-12-01), Fernandez
patent: 4809983 (1989-03-01), Langert
patent: 4951953 (1990-08-01), Kim
Nagai Masao
Pininfarina Paolo
Millin V.
Mizuno Corporation
Passaniti Sebastiano
LandOfFree
Golf club does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Golf club, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Golf club will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-122618