Line retraction device having a damper assembly
US10413761B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Nov 13, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/145
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A line retraction device includes a rotatable drum having a line associated therewith, with the line including a first end directly or indirectly attached to the drum and a second end opposite the first end, and at least one retraction member biasing the drum in a first rotational direction of the drum opposite a second rotational direction of the drum, where the drum is configured to: (i) retract the line when the drum moves in the first rotational direction; and (ii) payout the line when the drum moves in the second rotational direction. The device further including a damper assembly configured to provide rotational resistance to the drum in: (i) the first rotational direction of the drum as the line is being retracted; and (ii) the second rotational direction as the line is being paid out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.