Lock and emergency release system for power operated doors
AssigneeTekdata Inc.
InventorMagdy A. Rizk
Life of this patent
Estimating the term…
Abstract
A lock and emergency release system for a door normally power operated by a door operator. The system comprises a lock displaceable between an idle position to a functional position in which opening of the door by the door operator is prevented. An emergency release handle is manually operable for simultaneously displacing the lock to its idle position and releasing the door from the door operator, thereby allowing the door to be manually opened.
Claims9
A lock and emergency release system for a sliding door normally power operated by a door operator, the system comprising a lock displaceable between an idle position to a functional position in which the door operator is prevented from opening the door, at least one emergency release means manually operable for displacing said lock to said idle position thereof and releasing the door from said door operator, thereby allowing the door to be manually opened.
Dependencies are inferred from the claim text.