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:
Aug. 07, 2012
Filed:
Feb. 09, 2009
Applicant:
Anders B. Lorenzen, Åbenrå, DK;
Inventor:
Anders B. Lorenzen, Åbenrå, DK;
Assignee:
Linak A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 27/02 (2006.01); F16H 29/02 (2006.01); B65H 59/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An emergency lowering (retraction) mechanism for a linear actuator includes first and second cylindrical parts, an operating handle outside of the first cylindrical part, and a coil spring which has a first end connected to the operating handle, a second end connected to the second cylindrical part, and a plurality of windings, with some of the windings wrapping around and contacting the outer periphery of the first cylindrical part and some wrapping around and contacting the outer periphery of the second cylindrical part.