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:
Jul. 19, 1994
Filed:
Jan. 29, 1992
Fredric J Weber, Waco, TX (US);
Edmund R Burke, Colorado Springs, CO (US);
Spenco Medical Corporation, Waco, TX (US);
Abstract
There is disclosed a cushion for absorbing energy to dampen vibration, distribute pressure and absorb shock. The cushion has a deformable polyurethane bladder which defines a chamber adapted to contain a fluid, such as air. A piece of viscoelastic material, such as a highly plasticized PVC gel, may be located inside the bladder so that when air is introduced into the chamber, the cushion is capable of absorbing energy to dampen low amplitude vibration, distribute pressure and absorb high amplitude shock. The cushion has a valve in fluid communication with the chamber for selectively varying the amount of air so that the shock absorbing capability of the cushion may be varied. Various embodiments incorporating the cushion are disclosed, including a removable bicycle saddle pad, a bicycle saddle, a wheelchair seat pad and a cyclist's glove.