William Wasserberger - Muskegon MI Raymond M. Edwards - Matteson IL
Assignee:
Brunswick Bowling & Billiards - Muskegon MI
International Classification:
A63B 3710
US Classification:
473126
Abstract:
The lack of uniformity in reaction characteristics of bowling balls of differing weights is avoided by a family of bowling balls having nearly identical reaction characteristics which include a plurality of the balls, each of the same nominal diameter and each differing in weight from the others by about one pound or more. Each ball includes a cover (10) and a core (14, 16, 18, 20) of a material different from the cover (10). Each core (14, 16, 18, 20) is constructed and arranged within its cover to produce a first radius of gyration about a first axis and a second, different radius of gyration about a second axis that is generally transverse to the first axis. The first radius of gyration of all of the balls is substantially identical and the second radius of gyration of all of the balls is substantially identical.
Klaus Sommer - Pittsburgh PA John Clemons - Mount Pleasant SC Wolfgang Jacobsen - Koln, DE Ing Kurt Pirk - Koln, DE Arthur Zerbe - Burscheid, DE Werner Konig - Leverkusen, DE Berthold Justen - Burscheid, DE Jurgen Giesselmann - Overath, DE William Wasserberger - Spring Lake MI Raymond Edwards - Grand Rapids MI
Assignee:
Bayer Aktiengesellschaft - Leverkusen Bayer Corporation - Pittsburgh PA Brunswick Corporation - Muskegon MI
International Classification:
A63D 500 A63F 728
US Classification:
124 4
Abstract:
The invention relates to a method and a device for throwing balls with specific throwing parameters with the aid of a pendulum. The device consists of a pendulum having a free end which is suspended so as to be movable about an axis, characterized in that a holding device for the ball is located at the free end of the pendulum shaft and can release the ball in response to an electrical signal.