David T Hansen
Security Companies and Guards in Sandy, UT
License number
Utah 300957-6303
Issued Date
Aug 31, 1993
Expiration Date
Aug 31, 1994
Category
Security Companies & Guards
Type
Unarmed Private Security Officer
Address
Address
Sandy, UT
Professional information
Traction Device For Tracked Vehicle
US Patent:
5547268, Aug 20, 1996
Filed:
Jun 7, 1994
Appl. No.:
8/255226
Inventors:
David W. Hansen - Sandy UT
International Classification:
B62D 5528
US Classification:
305191
Abstract:
An improved unit having a base and a plurality of teeth integral with the base and projecting outwardly therefrom. The teeth and base are formed of a suitable elastomeric material, such as natural rubber or urethane rubber. The teeth have conical outer surface and V-shaped notches or openings between adjacent teeth. The teeth have flat, angled surfaces. There are two rows of teeth on each base, respectively, and the teeth are aligned with each other front to back. The base is beveled so that each tooth will have maximum area at the root thereof.