Patent · US Active

High load operation of an industrial roll door

US8162028B2 · kind B2 · utility

2Cited by

10References

66Claims

0Family size

Assignee

Assa Abloy Entrance Systems AB · SE

Inventors

Mikael Bengtsson · Eldsberga, SE
Håkan Larsson · Halmstad, SE
Raymond Sauve · Stone Mountain, US
Holger Siewert · Rheda-Wiedenbrück, DE
Jan Victor · Knokke, BE
Kent Palsson · Gothenburg, SE

Key dates

Filing date	May 2, 2005
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Jun 6, 2028

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE06B9/62
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A high load operation industrial roll door, including a flexible door curtain windable about a top roll positioned above a door opening and provided with a drive system. The roll door includes a bottom beam fastened to the door curtain, and a biasing spring, for resisting movement of the door upon application of a load thereon, and a positive stop preventing movement of the biasing means beyond a predetermined point.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.