Boots – shoes – and leggings
Patent
1977-09-12
1979-01-23
Atkinson, Charles E.
Boots, shoes, and leggings
73167, 273185R, 364525, G06G 748, A63B 4300
Patent
active
041363876
ABSTRACT:
Electro-optical sensors measure the location of a plurality of spots on the surface of a golf club head or a golf ball at a minimum of two precisely spaced points in time. The two time points for the club head are just prior to impact with the golf ball. The two time points for the golf ball are just after impact by the club head. From the apparent displacements of the plurality of spots between measurements, the apparatus determines in substantially real time the velocity of the club head or ball and the spin about orthogonal axes.
REFERENCES:
patent: 3359005 (1967-12-01), Cameron
patent: 3364751 (1968-01-01), Cornell et al.
patent: 3513707 (1970-05-01), Russell et al.
patent: 3630601 (1971-12-01), Lebovee
patent: 3633007 (1972-01-01), Sanders
patent: 3671724 (1972-06-01), Sanders
patent: 3804518 (1974-04-01), Meyr
patent: 3935669 (1976-02-01), Potrzuski et al.
patent: 4041293 (1977-08-01), Kihlberg
Gobush William
Hottel, Jr. Hoyt C.
Lynch Francis deS.
Sullivan Paul F.
Acushnet Company
Atkinson Charles E.
Krass Errol A.
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