1
Glover Cecil C: Golf club with adjustable weighting plugs. March 28, 1972: US3652094 (245 worldwide citation)

A golf club having provision for adjusting the swing weight and balance of the club. The club head includes a plurality of elongated cavities, each of which mounts an internally threaded sleeve. One or more externally threaded plugs are threadedly retained in each sleeve, the plugs being adapted to ...


2
Glover Cecil C: Golf club having integrally formed face and sole plate with weight means. September 19, 1972: US3692306 (221 worldwide citation)

A golf club whose head is provided with a bracket having sole and face plates formed integral with each other and positioned against respective bottom sole and front face surfaces of the head, and wherein one or the other of the plates carries at least one inwardly projecting elongate tube which is ...


3
Glover Cecil C: Golf club head with weight adjusting means. October 5, 1971: US3610630 (101 worldwide citation)

A golf club having provision for adjusting the swing weight and balance of the club. The club head includes a cavity adapted to removably receive a module mounting one or more threaded shafts. The shafts are threadedly retained in the module and may be withdrawn therefrom to receive a plurality of t ...