Self-retracting lifeline
US7281620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2004 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Apr 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4984
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A preferred embodiment self-retracting lifeline (100) includes a centrifugal clutch assembly (121) having a pawl (128) and a spring (131). The pawl (128) and the spring (131), which do not require any fixed attachment to any other component of the device, are held in place and pivotable within a plate (143). The plate (143) is rotatable within a cavity (120) of a brake hub (118) including teeth (141) extending into the cavity (120). When a centrifugal force is applied, the pawl (128) compresses the spring (131) and moves away from the plate (143) to engage the teeth (141) thereby activating a brake assembly within the self-retracting lifeline (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.