Patent · US Active

Electronically powered door with a manual override mechanism

US8806806B2 · kind B2 · utility

11Cited by
9References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 27, 2010
Grant dateAug 19, 2014
Priority date
Expiry dateMar 13, 2031

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE05Y2900/106
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

Embodiments of the resent invention provide an electric motor driven door or barrier opener with a manually operable drive for use in the event of a power failure. The operator includes a manually rotatable drive wheel and manual rotation of the drive wheel effects a movement of at least one drive coupler in generally radially extending direction relative to the drive shaft to effect a drive coupling between the drive wheel and the drive shaft to input drive to permit manual opening and or closing of the door.

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