Door assembly with augmented counterbalancing
US5373665A · kind A · utility
18Cited by
14References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1993 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Apr 9, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2999/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A counterbalancing assembly and a non-vertically hinged door assembly incorporating the same include a first pair of torque rods directly connected between the door and a frame which produce a partial counterbalancing torque. A second pair of torque rods acting through cams produce an augmenting counterbalancing torque such that the sum of the partial and augmenting torques fully counterbalance the door throughout its arc of motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.