Drawer interlock
US4889396A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1988 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Dec 12, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B65/464
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drawer interlock combination for a stack or tier of drawers and simplified to include a frame forming a receptacle guide for a plurality of rotors, one rotor for each drawer in the stack and the same frame guiding a plurality of actuators, one for each drawer through a path limited in both extremes of travel and displaceable by the action of only one of the rotors so that only a single drawer may be opened at a time and plural drawers cannot be opened concurrently. The device may be completely locked by simple blocking of the travel of the actuators to less displacement than by an single of the rotors. The structure is simple, economical and easy to install. The parts repeat themselves and provide excellent drawer stabilization with overall locking of all drawers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.