Title: Weighting device for attachment to baseball bats

Abstract: This invention is a weighting device for attachment to baseball bats which is of generally doughnut shape, and comprising a hollow chamber adapted to be filled with liquid or granular weighting material, which device may be fitted over the handle of a baseball bat and frictionally engaged with the barrel thereof for the purpose of permitting the batter to take practice swings with a heavy bat prior to taking his turn at bat.

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Inventors: Diforte, Jr., Mariano P. (Baltimore, MD, US)

Application Number: 499905
Filing Date: 1974-08-23
Publication_date: 1976-07-27
Assignee: Bat Weight, Inc. (Baltimore, MD)
Primary Class(es): 473/437 473/256
Other Classes:
US Patent Ref:

1343357	Jun, 1920	Eggers	128/118.
1663268	Mar, 1928	Foley et al.	9/345.
2978375	Apr, 1961	Grawey	273/DIG.
3171652	Mar, 1965	Newman	272/84.
3231271	Jan, 1966	Winer	272/84.
3311374	Mar, 1967	Wittenberg et al.	272/84.
3334899	Aug, 1967	Bosco et al.	272/84.
3521883	Jul, 1970	Hamilton	273/26.
3572702	Mar, 1971	Dorn	272/84.
3628790	Dec, 1971	Gordon	272/64.
3647220	Mar, 1972	Burkart	273/194.

Other Refs:
Primary Examiner: Pinkham, Richard C.
Assistant Examiner: Brown, T.
Attorney: Shlesinger, Arkwright, Garvey & Dinsmore