Alignment tool for mounting door lock assembly
US5081771A · kind A · utility
Inventors
Key dates
| Filing date | May 24, 1991 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | May 24, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B17/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An alignment tool for preparing through holes in a door to enable mounting a lock assembly includes a slidable bracket for securely positioning the tool in the mortise at the edge of the door. An angle element is connected to the bracket and to a support plate, which is perpendicularly disposed relative to the bracket. The support plate is formed with precisely positioned guide holes that indicates to the door installer exactly where the through holes are to be made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.