Patent · US Active

Compact motorized lifting device

US9975745B2 · kind B2 · utility

2Cited by

24References

8Claims

0Family size

Inventors

David R. Hall · Provo, US
Jerome Miles · Spanish Fork, US
Michael Hall · London, CA
Davido Hyer · Spanish Fork, US
Chris Jones · Spanish Fork, US
Kevin Rees · Herriman, US
Daniel Madsen · Bunker, US
Ben Taylor · Provo, US

Key dates

Filing date	Apr 3, 2014
Grant date	May 22, 2018
Priority date	—
Expiry date	Aug 19, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB66D1/58
WIPO fieldHandling
WIPO sectorMechanical engineering

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. In certain embodiments, the motor and transmission are substantially entirely contained within the drum. In the same or other embodiments, a bearing may provide support for both the transmission and the drum.

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