Butt hinge with integrally formed butt straps
US5819372A · kind A · utility
8Cited by
15References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Dec 23, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved butt hinge is disclosed in which each hinge half comprises a leaf portion formed integrally with a butt strap. A second leaf portion mounts to each butt strap after the butt straps are mounted to a door and door frame. A hinge pin passes through each of the four leaf portions to hingedly mount the door to the door frame. The hinge pin cannot be removed without removing at least one of the second leaf portions, and since the second leaf portions cannot be removed while the door is closed, the hinge pin cannot be removed while the door is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.