Locking snap hook
US4434536A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1982 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Oct 13, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B45/027
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A positively locking snap utilizing a conventionally shaped snap hook having a normally open hook end portion which is opened and closed to receive and discharge a line or other fixture by movement of a U-shaped spring biased closure pivotally connected to the snap body at a position remote from the open hook portion, the U-shaped spring biased closure extending beyond the body of the snap hook on the side opposite to the open hook end and capable of being moved in a direction away from the hook end portion about the pivot to open the snap hook end portion when a locking member received between the snap hook body and the spring biased closure on the hook side of the snap hook body is moved from a position where it interferes with the movement of the spring closure to a position where is does not interfere with that movement, the movement of the locking member being facilitated by the provision of an exposed lateral extension of the member extending beyond the spring biased closure toward the end of the snap hook opposite from the hook end portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.