Door
US5301732A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Jul 14, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/135
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door, particularly for large doorways, which includes a door leaf suspended from an upper edge of the doorway and including at least one of a continuous sheet or a number of sheets arranged in a single or several layers attached to a series of lateral braces at an equal or common distance from each other in a vertical direction of the doorway. The lateral braces extend at respective ends thereof into a generally vertically extending guide profile, and from an upper edge of the doorway, a hoist is provided which includes lines or belts. Each lateral brace includes an attached hoisting device, with the hoisting devices being connected so as to enable movement of the door in an upward and downward direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.