Games using tangible projectile – Player held and powered – nonmechanical projector – per se,... – Club
Patent
1998-02-25
2000-11-28
Graham, Mark S.
Games using tangible projectile
Player held and powered, nonmechanical projector, per se,...
Club
A63B 5914
Patent
active
061528390
ABSTRACT:
A hockey stick blade assembly for removable and replaceable installation onto a reusable hockey stick shaft comprises a blade member having a bottom blade portion and an upwardly extending hozel portion insertable into the hollow end of the hockey stick shaft. First and second co-operating wedging surfaces are operatively disposed on the hozel portion of the blade member and on a wedge member, respectively, and are shaped for wedging contact with each other. When the hozel portion of the blade member engages the hockey stick shaft, the first wedging surface imparts a substantially transverse first wedging force to the second wedging surface and the second wedging surface imparts an oppositely directed substantially transverse second wedging force to the first wedging surface, which wedging forces are transmitted to the outer walls of the hollow-ended hockey stick shaft. The outer walls deform slightly to absorb the opposed first and second wedging forces and thus impart corresponding inwardly directed opposed reaction forces against the first and second wedging surfaces, thereby forcing the first and second wedging surfaces into intimate frictional engagement one with the other, so as to retain the blade member in place on the hockey stick shaft. A locking means is securely engageable between the blade member and the wedge member to preclude relative movement along a common longitudinal axis of the blade member and hockey stick shaft with respect to each other when the blade member is installed on the shaft.
REFERENCES:
patent: 3934875 (1976-01-01), Easton et al.
patent: 5582406 (1996-12-01), Babcock
patent: 5628509 (1997-05-01), Christian
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