DAVID K LAWRENCE
Engineering in Cincinnati, OH
License number
Massachusetts 36679
Issued Date
Jan 25, 1991
Expiration Date
Jun 30, 1992
Type
Civil Engineer
Address
Address
Cincinnati, OH 45226
Professional information
David Lawrence - Cincinnati, OH
Work:
InReturn - Blue Ash, OH
Production Associate
Production Associate
Education:
University of - Cincinnati, OH
Associates in Psychology
Associates in Psychology
Cue Stroke Practice Aid
US Patent:
7429217, Sep 30, 2008
Filed:
Jan 22, 2007
Appl. No.:
11/655954
Inventors:
David E. Lawrence - Cincinnati OH, US
International Classification:
A63D 15/00
US Classification:
473 2, 473 48
Abstract:
A cue stroke practice aid is used by a billiards player to improve the player's cue stroke by repetitiously practicing the stroke at varying skill levels until a consistent stroke is developed. The practice aid comprises an elongated housing with first and second openings at opposed ends. A slide assembly is positioned in the elongated housing. The slide assembly includes a shaft, equi-spaced rails extending axially from the shaft, cue guide arms and an adjusting knob. The adjusting knob is used to move the rails laterally within the housing. This has the effect of causing cue guide arms to radially expand or contract from the axis shaft to form a tubular cavity of a desired cross dimension. The opening defined by tips of the cue guide fingers provides a target for the billiards player to practice a stroke at a selected cross dimension according to an attainable skill level.