Door locking system having a sensor for controlling activating/deactivating of a locking device
AssigneeIlco Unican Inc.
InventorIlan Goldman
Life of this patent
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Abstract
An electrically operated locking system for doors and the like has an electrically operated locking device installed inside the door. A control device installed outside the door is operatively connected with the locking device. A sensor detects the position of the door with respect to the door mounting by a light activated means electrically coupled to the locking device such that when darkness is sensed, the locking device is activatable to operate the locking unit. When light is sensed, however, the locking device is nonactivatable.
Claims19
A method for controlling access to an area behind a door comprising the steps of:
- providing a locking device having a locking bolt and a light-activated sensing means;
- determining by the light-activated sensing means whether light or no light is present;
- inputting an access control code to a control unit mounted outside of the door;
- and
- activating the locking bolt thereby controlling access to the area behind the door only in response to no light being sensed and a valid code input by a user.
An electrically operated locking system for doors comprising:
- an electrically operated locking device installed inside the door;
- a control device installed outside the door operatively connected with said locking device;
- and
- sensing means for detecting the position of the door with respect to a mounting for the door wherein said sensing means includes light-activated means electrically coupled to and integral with said locking device such that only upon sensing darkness, said locking device may be activated to operate a locking unit, and upon sensing light, the locking device may not be activated.
An electrically operated locking system for a door comprising:
- a locking device having a sensor and a locking unit integral therewith wherein the locking device is mounted inside the door;
- a control device mounted outside the door and operatively connected with the locking device wherein the sensor upon detection of light prevents activation of the locking unit and only upon detection of darkness allows activation of the locking unit.
A locking system for a door comprising:
- a locking device having a bolt engaging means and a light-activated sensing means wherein the locking device is integrally constructed with the bolt engaging means and the light-activated sensing means;
- and
- a control means installed outside of the door operatively connected with the locking device to activate the bolt engaging means only upon sensing darkness by the light-activated sensing means and upon input of a valid code to the control means by a user.
Dependencies are inferred from the claim text.