Window guard latch with emergency release
OwnerHarry H. Hicks, Gerald E. Davenportinventors
Life of this patent
Estimating the term…
Abstract
A window guard latch with emergency release comprising a bracket having a channel for receiving a portion of the window guard, a lock for engaging the portion of the window guard received in the channel, the lock having a trigger for releasing the engagement with the window guard, and a solenoid linked to the trigger to operate it. A control box, mounted inside the building has an RF signal detector and means to activate the solenoid in response to the detector to release the window guard. Smoke detectors which trigger an RF transmitter and portable push button RF transmitters can transmit an RF signal to remotely activate the release mechanism.
Claims20
A window guard latch for securing a guard over a window, the window guard latch comprising:
- a bracket;
- a channel in the bracket for receiving a portion of the window guard;
- a lock unit in said bracket, the lock unit including a lock for engaging the portion of the window guard received in the channel in the bracket;
- and,
- means for releasing the engagement between the lock and window guard in response to an RF signal transmitted from a remote source.
A window guard latch for securing a guard over a window, the window guard latch comprising:
- a bracket;
- a channel in the bracket for receiving a portion of the window guard;
- a lock unit in said bracket, the lock unit including a lock comprising a bolt operable between an extended position in the channel and a retracted position out of the channel,
- and an opening in the portion of the window guard received in the channel for receiving the bolt, the bolt extending into the opening in the window guard when the window guard is in the channel and the bolt is in the extended position to engage the window guard;
- the lock further comprising a lock cylinder, a trigger in the cylinder to retract the bolt from its extended position, and a slot in the cylinder to expose the trigger;
- a loop extending around the lock cylinder for engaging trigger;
- a solenoid attached to the loop for moving the loop against the trigger to retract the bolt;
- means for detecting an RF signal;
- and,
- means responsive to the detecting means for activating the solenoid to move the loop against the trigger and thereby release the latch.
A window guard with latch for securing the window guard over a window, the latch comprising means for engaging the guard to secure it in position over the window, and means for automatically releasing the engaging means in response to an RF signal transmitted from a remote source, thereby permitting the guard to be freely opened.
Dependencies are inferred from the claim text.