Low cost garage door lock
AssigneeSargent Manufacturing Company
InventorsRonald S Slusarski, Scott B Lowder, Paul P Marquis
Life of this patent
Estimating the term…
Abstract
A vertical door locking system includes a sliding latch mounted to a door that opens vertically, such as a garage door or corrugated self-storage door, and an electrically operated solenoid mounted at a fixed location on a guide rail for the door or the door frame. The latch includes a latchbolt that extends outward from the door to prevent the door from being raised vertically and the latchbolt has an opening at one end. The solenoid includes a spring operated solenoid rod that extends into the opening in the latchbolt to prevent the latchbolt from being retracted thereby preventing the door from being opened unless the solenoid is electrically operated to disengage the solenoid rod and release the latchbolt.
Claims20
A vertical door locking system for use with a vertically opening door comprising:
- an electrically operable solenoid having a solenoid rod movable between an extended position and a retracted position;
- a latch adapted for attachment to said vertically opening door, the latch including a latchbolt movable relative to the vertically opening door between a latched position to prevent the door from opening and an unlatched position to allow the vertically opening door to open, the latchbolt having an opening at an end thereof of sufficient size to receive the solenoid rod;
- and
- a solenoid mount holding the solenoid at a fixed location with the solenoid rod extending perpendicular to the latchbolt, the solenoid rod preventing the latchbolt from moving to the unlatched position when the solenoid rod is in the extended position and received in the opening in the end of the latchbolt.
A vertical door and vertical door locking system comprising:
- a vertically opening door;
- a guide rail having a latchbolt opening, the guide rail acting to vertically guide the door between opened and closed positions;
- an electrically operable solenoid having a solenoid rod moveable between an extended position and a retracted position;
- a latch adapted for attachment to the door, the latch including a latchbolt movable between a latched position to prevent the door from opening and an unlatched position to allow the door to open, the latchbolt having an opening at an end thereof of sufficient size to receive the solenoid rod, the latchbolt extending through the latchbolt opening when the door is in the closed position and the latchbolt is in the latched position;
- and
- a solenoid mount attached to the guide rail near the latchbolt opening, the solenoid mount holding the solenoid with the solenoid rod extending perpendicular to the latchbolt, the solenoid rod preventing the latchbolt from moving to the unlatched position when the solenoid rod is in the extended position and received in the opening in the end of the latchbolt.
Dependencies are inferred from the claim text.