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. 21, 2017
Filed:
Apr. 04, 2014
Applicant:
David R. Hall, Provo, UT (US);
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01G 9/00 (2006.01); B66C 13/16 (2006.01); G01G 19/18 (2006.01); F16H 55/38 (2006.01); F16H 55/50 (2006.01); B66D 1/26 (2006.01); B66D 1/38 (2006.01); B66D 1/22 (2006.01); B66D 1/48 (2006.01); B66D 1/58 (2006.01); G01G 19/14 (2006.01); G01G 23/37 (2006.01);
U.S. Cl.
CPC ...
B66D 1/485 (2013.01); B66C 13/16 (2013.01); B66D 1/22 (2013.01); B66D 1/58 (2013.01); G01G 9/00 (2013.01); G01G 19/14 (2013.01); G01G 19/18 (2013.01); F16H 55/38 (2013.01); F16H 55/50 (2013.01); G01G 23/3728 (2013.01);
Abstract
An apparatus includes a drum to draw in or let out a line and a motor and transmission coupled to the drum to apply a torque thereto. A power sensor measures an amount of current drawn and/or voltage supplied to the motor as the motor applies torque to the line. A processor calculates an amount of weight that is attached to the line based on the amount of power consumed by the motor. Alternatively, if the motor is operated in generator mode, a current sensor may measure an amount of current generated by the motor and the processor may calculate an amount of weight that is attached to the line based at least partly on an amount of current that is generated by the motor.