Roller bracket apparatus for an overhead door
US5799368A · kind A · utility
Inventor
Key dates
| Filing date | Jun 3, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Jun 3, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roller bracket apparatus includes a roller assembly which includes a carriage portion and a link portion projecting from the carriage portion. A push/pull assembly is provided, and a pivot assembly is connected between the link portion of the roller assembly and the push/pull assembly. The carriage portion includes a wheel-support portion and a plurality of axle/wheel assemblies supported by the wheel-support portion. Each of the axle/wheel assemblies includes an axle and a roller wheel connected to the axle. The link portion extends from the carriage portion at an oblique extension angle. The push/pull assembly includes a first member connected to the pivot assembly, and a second member is connected to the first member. The push/pull assembly also includes a third member connected between the first member and the second member. The second member of the push/pull assembly is oriented with respect to the link portion of the roller assembly substantially in a straight line when the second member of the push/pull assembly is oriented with respect to the wheel-support portion of the roller assembly at a right angle. On the other hand, the second member of the push/pull assembly is or…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.