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:
Mar. 15, 2016
Filed:
Jul. 14, 2011
Applicants:
Terje Søraas, Vanvikan, NO;
Jon Eirik Brennvall, Trondheim, NO;
Tor Erik Naebb, Leksvik, NO;
Inventors:
Assignee:
ELTORQUE AS, Vanvikan, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 35/00 (2006.01); F16D 41/064 (2006.01);
U.S. Cl.
CPC ...
F16K 35/00 (2013.01); F16D 41/064 (2013.01); Y10T 137/7256 (2015.04);
Abstract
A self lock mechanism for rotating actuators, which allow rotation from one side while deny rotation from the other side, comprising sets of rollers arranged between a housing and a valve connection part, configured with a special shape to cause locking if the mechanism is attempted twisted from the valve side, a motor connection part to press rollers out of locking position and release the locking before the motor connection part makes contact with the valve connection part and start transferring torque. The rollers may be separated and kept in place by a wing on the valve connection part or by springs.