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:
Oct. 15, 1996
Filed:
Nov. 08, 1994
David A Lowry, Wayne, PA (US);
Yevgeny Novikov, Ambler, PA (US);
Cema Technologies, Inc., Bridgeport, PA (US);
Abstract
A lockable hinge assembly for selectively rotatably locking a first hinge member to a second hinge member includes a first generally cylindrical member and a second member rotatably coupled to the first member. A wrap spring is interconnected between the first and second members. The wrap spring is movable with respect to the first member to control an amount of frictional torque applied between the wrap spring and the first member. An actuator member is in operative engagement with the wrap spring. The actuator is movable between first and second positions to move the wrap spring with respect to the first member to control the amount of frictional torque applied between the wrap spring and the first member such that when the actuator is in the first position a first amount of frictional torque is applied between the wrap spring and the first member to allow the first and second members to rotate with respect to each other, and when the actuator is in the second position a second amount of frictional torque is applied between the wrap spring and the first member to rotatably lock the first member to the second member.