KEITH M BARNES
Electrician in Fitchburg, MA
License number
Massachusetts 30820
Issued Date
May 26, 1987
Expiration Date
Jul 31, 2019
Type
Journeyman Electrician
Address
Address
Fitchburg, MA 01420
Personal information
See more information about KEITH M BARNES at radaris.comName
Address
Phone
596 Foster Rd, Ashby, MA 01431
5 Valiant Way, Salem, MA 01970
Professional information
See more information about KEITH M BARNES at trustoria.com
Snow Board With Collapsible Ski Poles And Holders For Same
Snow Board With Collapsible Ski Poles And Holders For Same
US Patent:
6345843, Feb 12, 2002
Filed:
Jun 28, 2000
Appl. No.:
09/605615
Inventors:
Keith M. Barnes - Fitchburg MA 01420
International Classification:
A63C 1100
US Classification:
280823, 280819
Abstract:
A snow board is fitted with mounts to hold collapsible ski poles which allow the snow boarder to propel himself along level areas of snow, or to traverse uphill. When the user is going down-hill, the ski poles are collapsed into a compact configuration, and held securely in mounts affixed at the forward and rear areas of the snow board, each pole has a handle, a hollow upper shaft, and a nested segment. The segment has an upper end and a lower end, with the upper end slidingly inserted into the hollow upper shaft. Locking means allow the user to lock the nested segment within the upper shaft in either the compact, collapsed position, or in the extended position suitable of propelling the user along the snow. Locking is accomplished by means of an eccentric split washer mounted in proximity to the upper end of the nested segment, the washer containing a flat portion opposite the split, and rotating about an axis which is not concentric with the axis of the nested segment. The washer thus will jam in one position, when the washer is mis-aligned with the long axis of the nested segment, and loosen when rotated so that it is aligned.