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. 14, 2011
Filed:
Feb. 13, 2009
James B. Easley, Orono, MN (US);
James B. Easley, Orono, MN (US);
Other;
Abstract
A friction hinge includes a socket made up of a compressible elastomer insert sleeve inside a relatively rigid cup substrate. The insert sleeve defines an opening with a lip around the opening, and a relatively rigid ball or other center portion can be snap assembled through the lip and opening to center itself in the socket. A mount portion extends through the opening off the ball/center portion, and hand pressure on the mount portion can adjust the angular position of the joint. The size of the ball/center portion relative to the size of the cup substrate causes dimensional compression of the insert sleeve, such as about 15% of its thickness. The compression of the insert sleeve creates a controlled friction force on the ball/center portion, so the snap assembly friction hinge works consistently over a long time and over wide temperature ranges.