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Columbia Industries, Inc. Patents
Assignee:
Columbia Industries, Inc.
Address:
San Antonio, TX
No. of patents:
7
Patents:












Patent Number Title Of Patent Date Issued
5584767 Bowling ball finger insert having a wear indicator December 17, 1996
A finger insert having a wear indicator and adapted for installation along the wear surface in a finger hole of a bowling ball. The insert is a composite structure formed of a polymeric material and has a primary layer of a first color and a secondary layer of a contrasting second color.
5462491 Bowling ball with weight block October 31, 1995
A bowling ball comprises a core surrounded by a cover stock. The core comprises a body with its center positioned substantially coincident with the bowling ball's geometric center and a weight block positioned as close to the outer surface of the bowling ball as possible. The weight bloc
4522397 Filled shell bowling ball June 11, 1985
A bowling ball having hard and inflexible flake materials arranged in a substantially interlocking relationship and located at or just below the outer surface of the bowling ball to form a substantially continuous interlocking armored layer about the bowling ball which causes it to have
4328967 Lightweight bowling ball May 11, 1982
A bowling ball having an inner core and at least one thermosetting resin shell which contains sufficient lightweight particles, such as unicellular borsilicate glass spheres, having a diameter within the range of from about 10 to 100 microns and evenly dispersed therethrough to reduce th
4309377 Polymer alloy bowling ball January 5, 1982
A bowling ball having a thin viscous film deposited upon its surface from within the ball for increasing the coefficient of friction between the ball and the bowling lane. The film comprises a saturated plasticizer incorporated into the ball at the time of manufacture that slowly exudes
4253665 Polymer alloy bowling ball March 3, 1981
A bowling ball having a thin viscous film deposited upon its surface from within the ball for increasing the coefficient of friction between the ball and the bowling lane. The film comprises a saturated plasticizer incorporated into the ball at the time of manufacture that slowly exudes
4104352 Method of making a bowling pin August 1, 1978
Method of making a hollow bowling pin comprising a base, body and cap wherein at least said body is composed of a thermoset composition, and said base and cap are composed of a thermoset or thermoplastic composition. The body of said pin may be composed of two or more sections of dif

 
 
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