Closure curtain with bumper centering device
US9316047B2 · kind B2 · utility
1Cited by
24References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2012 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Jul 20, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/801
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An overhead vertical closure, such as an overhead coiling door is described. A plurality of bumpers are spaced and fixed along the sides of the closure to center the curtain between the support brackets. In a first preferred embodiment, the geometry of the bumper is such that the vertical side and the extending sides meet in one or more obtuse angles. In a second preferred embodiment, the geometry of the bumper is such that the vertical side and the extending sides meet in a radius.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.