Stoves and furnaces – Tool heaters – Liquid or gaseous fuel
Patent
1996-08-01
1997-11-18
Yeung, James C.
Stoves and furnaces
Tool heaters
Liquid or gaseous fuel
126226, 431344, 431345, F24C 300
Patent
active
056877056
ABSTRACT:
An aluminum baseball or softball bat warmer with an inner and outer container separated by an air space. The inner container is adapted to receive a bat and is supported inside the outer container on a hanger with an aperture. A convective thermal source is positioned below the hanger. Warmed air from the convective thermal source is directed through the aperture in the hanger and circulates through the air space, warming the sidewall of the inner container and the bat therein. By heating the aluminum bat, the possibility of cold denting and cracking thin walled aluminum bats formed of "CU-31" alloy, "C405" alloy or like, is reduced.
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patent: 4340029 (1982-07-01), Kelly, Jr.
patent: 4420681 (1983-12-01), Arnold
patent: 5237912 (1993-08-01), Fins
patent: 5404865 (1995-04-01), Huls
Fishel Grace J.
Yeung James C.
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