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:
Jan. 08, 2019
Filed:
Oct. 19, 2016
Applicant:
James Heath, Seattle, WA (US);
Inventor:
James Heath, Seattle, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 63/00 (2006.01); A63J 1/02 (2006.01); B66D 3/06 (2006.01); F16D 125/28 (2012.01);
U.S. Cl.
CPC ...
A63J 1/028 (2013.01); B66D 3/06 (2013.01); F16D 63/008 (2013.01); F16D 2125/28 (2013.01);
Abstract
A lift system for lifting a load includes a counterweight, a base unit, a fly line, a load line, and pulleys. The base unit includes a movable cam assembly coupled to a fixed frame. The cam assembly includes a cam member that is rotatable relative to a carriage of the cam assembly. The cam assembly can be moved between first and second positions relative to the frame member, and prevents movement of the fly line through the base unit in the first position, while movement of the fly line through the base unit is allowed when the cam assembly is in the second position.