The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 1981
Filed:
Aug. 16, 1977
Jon I Allsop, Bellingham, WA (US);
Donald J Stern, Bellingham, WA (US);
Allsop Automatic, Inc., Bellingham, WA (US);
Abstract
A shock absorbing ski pole having a hand grip mounted for up and down motion on the upper end of the ski pole. To cushion shocks imparted to the ski pole, a pneumatic cylinder and piston assembly is mounted in the upper end of the ski pole and operatively connected between the hand grip and the shaft. In addition, a compression spring is mounted in the upper end of the shaft to urge the hand grip to an upper position and also cushion impacts on the ski pole. An elongate friction and positioning sleeve is positioned securely within the hand grip and frictionally engages the outer surface of the upper end of the shaft to provide a frictional drag force and provide firm engagement between the hand grip and the shaft. The components are so arranged that the length of the pole can be conveniently adjusted by disassembling the shock absorbing components, cutting the upper end of the shaft to a desired length, and reassembling the shock absorbing components in the upper end of the shaft, with the components being held in place by means of a pin engaging a pair of holes in the shaft at a second lower location.