Safety hook
US4062092A · kind A · utility
33Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Jul 6, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B45/028
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A safety hook is provided with a spring loaded closure segment normally closing the mouth of the hook. A pin carried by the segment is normally engaged by a spring loaded crank latch. The crank latch prevents the pin and segment from rotating to open the hook mouth until the crank latch is first rotatably released under the influence of a force acting to rotate the latch in a direction opposite to the direction of rotation which would occur under the influence of the force which would be transmitted from the segment to the latch in opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.