Anchoring means for door lock plates
US4296619A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/8568
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lock plate (2) is secured to a door (1) or the like, by means of two upper and two lower securing means (4,5). A recess formed in one side edge (1b) of the door is arranged to accommodate a lock housing (10) having a lock pillar (12) which covers the recess. The lock pillar (12) is secured by an upper and a lower screw (6) which simultaneously serve as anchoring elements to lock the plate securing means against rotation. Each of the securing means comprises a screw-thread (5) provided with an opening or recess (5d) and co-operating with a screw element (4) which is non-rotatably received in a hole in the plate (2). Each of the anchoring screws (6) is passed through two screw-threaded sleeves (5) provided with recesses and located on mutually the same level. The anchoring screws (6) co-act with two sleeve parts (7,8) which partially surround said screws, of which sleeve parts one (7) is screw-threaded for engagement with the screw thread. The sleeve parts (7,8) are introduced into the spaces located between the upper side and underside respectively of the lock housing and adjacent surfaces defining the recess (1c) for the lock housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.