Games using tangible projectile – Player held and powered – nonmechanical projector – per se,... – Racket or paddle; accessory therefor
Patent
1995-04-14
1998-10-13
Chiu, Raleigh W.
Games using tangible projectile
Player held and powered, nonmechanical projector, per se,...
Racket or paddle; accessory therefor
473556, A63B 5114
Patent
active
058205004
ABSTRACT:
A racquet stringing machine which accomplishes tensioning of the strings of a racquet by the use of one or more combination tensioning and holding clamp units which operate directly on the string inside the racquet. The present invention also provides fixed, non-rotating racquet head frame holding fixture holds the racquet stationary throughout the stringing process. The racquet is supported against distortion by compressive mounts disposed along the outer perimeter of the racquet head frame only. The racquet stringing machine further includes an offset pedestal which stabilizes the machine by counterweight effect while keeping the floor beneath the racquet holding fixture free of obstruction.
REFERENCES:
patent: 2023641 (1935-12-01), Morton
patent: 4249732 (1981-02-01), Balaban
patent: 4326713 (1982-04-01), Balaban
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patent: 5026055 (1991-06-01), Longeat
patent: 5186459 (1993-02-01), Korte-Jungermann
patent: 5186505 (1993-02-01), Chu
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The Stringer's Digest, 1987, and USRSA Certification Study Guide, (MacGregor), Bergelin LongString, pp. 78 and 79.
"MacGregor Bergelin Longstring", The Stringer's Digest -1987, pp. 78-79.
Chiu Raleigh W.
King Timothy J.
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