Safety hook
US7946005B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Aug 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/4755
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A safety hook includes a hook and a latch. The hook may be a twisted hook with a hooked portion twisted 90 degrees from a strap loop, or a flat “S” hook with the hooked portion and the strap loop in a single plane. The latch includes a full circle latch ring and a latch arm. The latch arm extends across a mouth opening of the hooked portion and is biased to prevent the hooked portion from disengaging from a wheel chair or other attachment point without forcing the latch arm away from the mouth. The latch ring resides against a loop portion of the hook and is held in place by grasps, fingers, lips, or the like which reach past center around a cross-section of the loop portion, or by molding-in-place over the loop portion, and by a strap attached around strap loop and the latch ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.