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. 06, 2018
Filed:
Apr. 04, 2014
David R. Hall, Provo, UT (US);
Jerome Miles, Spanish Fork, UT (US);
Davido Hyer, Spanish Fork, UT (US);
Chris Jones, Spanish Fork, UT (US);
Kevin Rees, Herriman, UT (US);
David R. Hall, Provo, UT (US);
Jerome Miles, Spanish Fork, UT (US);
Davido Hyer, Spanish Fork, UT (US);
Chris Jones, Spanish Fork, UT (US);
Kevin Rees, Herriman, UT (US);
Other;
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 tracking module tracks an actual amount of line let out from the drum. A servo control unit receives the actual amount, compares the actual amount to a desired amount of line to let out from the drum, and generates an error signal reflecting a difference between the actual amount and the desired amount. A modulation module generates, from the error signal, a control signal to control the motor, thereby bringing the actual amount into better alignment with the desired amount.