Convenience lockbox
US4228746A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1978 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Aug 23, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5584
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lockbox is disclosed, as for use in hotel closets, which includes an above-floor container fixed to define a space with a rectangular opening for closure by a locking cover. The cover incorporates a peripheral double ridge defining a peripheral channel to receive the upper edges of the container. Pairs of latching cam members are pivotally affixed at central, diametrically opposed locations in the cover, for actuation by a centrally located lock movement for engagement and disengagement with slots in the container. The movement is accomplished through a symmetrical linkage mechanism which simultaneously actuates each of the individual cam members and which incorporates a pair of parallel arms extending between pairs of the cam members and a pair of linking arms extending from the parallel arms to the lock movement. The pivotal support shafts for the cam members also serve as spacer mounts to support an internal cover for the locking mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.