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:
Jun. 09, 1998
Filed:
Apr. 22, 1996
Albert G Gapinski, Boulder, CO (US);
Charles M Schwimmer, San Jose, CA (US);
Schwinn Cycling & Fitness Inc., Boulder, CO (US);
Abstract
A pump head comprising a main body defining a chamber and having a top end and a bottom end, a force transmitting member slidably positioned in the chamber adjacent to the top end of the main body, a resilient collar positioned in the chamber adjacent to the bottom end of the main body and in engagement with the force transmitting member, and a camming device pivotally mounted at the top end of the main body. The collar defines an axial cavity having an inner wall and an inside diameter. The camming device has first, second and third cam surfaces in selective engagement with the force transmitting member. The second and third cam surfaces act to displace the force-transmitting member into the chamber to different extents to compress the collar. Compression of the collar decreases the inner diameter of the collar, and thus causes the collar to sealingly engage the valve stem positioned in the axial cavity. Compression of the collar at differing levels allows the pump head to work with many valve stems of differing sizes.