Descent device with automatic and manual control
US9168399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2010 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Dec 27, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B1/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A descent device according to embodiments of the present invention includes a housing; an inlet capstan; a drive wheel coupled to a centrifugal brake, the drive wheel rotatable with respect to the housing about an axis, the drive wheel including a groove formed along its outer perimeter, the groove having a first inner side wall, a second inner side wall, and a bottom, a distance between the first and second inner side walls decreases from the outer perimeter to the bottom in a direction toward the axis, wherein at least a portion of a radial extent of the inner side walls includes a pattern of protrusions positioned between inner side walls to form an irregular rope path along the groove; an outlet capstan; and a rope extending through the rope inlet, around the inlet capstan, around the drive wheel, around the outlet capstan, and through the rope outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.