Patent · US Active

Grooved drum and associated roller for motorized lifting device

US9399566B2 · kind B2 · utility

11Cited by

5References

20Claims

0Family size

Inventors

David R. Hall · Provo, US
Jerome Miles · Spanish Fork, US
Michael Hall · London, CA
Daniel Madsen · Bunker, US
Ben Taylor · Provo, US

Key dates

Filing date	Apr 4, 2014
Grant date	Jul 26, 2016
Priority date	—
Expiry date	Jul 15, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66D2700/0191
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

An apparatus includes a drum to draw in or let out a line and a motor coupled to the drum to apply a torque thereto. The drum includes a groove formed in an outer surface thereof to accommodate the line. A roller is provided that tracks the groove and extends into the groove. The roller pushes the line into the groove. In certain embodiments, the roller pushes the line to a bottom of the groove to ensure that the line is properly seated therein.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.