Butt mounted riser hinge
US4991259A · kind A · utility
38Cited by
11References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Aug 24, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05F1/063
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A butt mounted riser hinge has a plastic cam assembly mounted in two metallic cylinders so that their camming surfaces do not rub against the metallic cylinders and become readily worn. The cam assembly includes a male member with bevelled end that is rotatably received in a cup-shaped female member. The hinge further includes a spring and shell assembly in sliding arrangement with one of the metallic cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.