Exit alarm escutcheon

• US 7,990,280 B2
• Filed: 04/20/2007
• Issued: 08/02/2011
• Est. Priority Date: 04/20/2007
• Status: Active Grant

• Current Assignee: Corbin Russwin Inc.
• Original Assignee: Yale Security Incorporated (Assa Abloy AB)
• Inventors: Gray, John Steven
• Primary Examiner(s): Bugg; George A
• Assistant Examiner(s): LAU, HOI CHING
• Application Number:
  US11/738,100
• Publication Number:
  US 20080258911A1
• Time in Patent Office: 1,565 Days
• Field of Search: 340/540, 340/693.5, 340/542, 340/541.54, 340/545.1, 340/545.7, 340/541, 70/1, 704/32, 704/48
• US Class Current: 340/693.5
• CPC Class Codes: G08B 13/08 by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
• CPC Class Codes: G08B 7/062 indicating emergency exits

Abstract

An exit alarm system housed in an escutcheon for activating upon movement of an interior latch operator. The system is mounted to the interior side of a door with a latch assembly including an interior latch operator. The system may include an alarm, a trigger, and an electronic module. The trigger is responsive to movement of the interior latch operator. The electronic module may be electrically connected to a power source for providing an input signal to the alarm. Upon motion of the interior latch operator, the trigger may cause the electronic module to send an activating input signal to the alarm. The alarm may be a sound transducer. A switch may be provide to arm the system. A tamper switch may be provided to cause the electronic module to activate the alarm upon removal of the escutcheon. The system may be applied to retrofit an existing door.

Claims

1. An exit alarm escutcheon system for a door latch assembly for a door, the door having an interior side, the latch assembly including an interior latch operator and an associated spindle operatively connected to a latch, the exit alarm escutcheon system comprising:

a housing of unitary construction having a substantially open side adapted to be mounted to the interior side of the door without extending into the door, wherein the housing has an interior, and wherein the housing and a plane across the substantially open side of the housing define a volume that is the interior of the housing;

an alarm disposed within the interior of the housing; and

a trigger disposed within the interior of the housing and adapted to be actuated by movement of the interior latch operator and the associated spindle, and not by movement of an exterior latch operator or a lock, regardless of whether the exterior latch operator is locked,

wherein actuation of the trigger causes a signal to be sent to the alarm to put the alarm into operation.

2. The exit alarm escutcheon system of claim 1, further comprising an electronic module disposed within the interior of the housing for providing an input signal to the alarm, wherein the trigger signals the electronic module upon movement of the interior latch operator and the associated spindle, causing the electronic module to send the input signal to the alarm to put the alarm into operation.

3. The exit alarm escutcheon system of claim 2, further comprising a switch disposed in the interior of the housing that in a first position arms the system to be capable of putting the alarm into operation and in a second position disarms the system so that the system is incapable of putting the alarm into operation, wherein the electronic module is electrically connected to and signals the switch, such that in the first position the switch signals back to the electronic module, and in the second position the switch does not signal back to the electronic module.

4. The exit alarm escutcheon system of claim 3, further comprising a keyed actuator, wherein the switch is moved between first and second positions by the keyed actuator.

5. The exit alarm escutcheon system of claim 3, further comprising a keypad activated actuator, wherein the switch is moved between first and second positions by the keypad activated actuator.

6. The exit alarm escutcheon system of claim 3, further comprising a magnetic reader actuated actuator, wherein the switch is moved between first and second positions by the magnetic reader actuated actuator.

7. The exit alarm escutcheon system of claim 3, wherein the switch is a toggle switch.

8. The exit alarm escutcheon system of claim 7, further comprising a keyed actuator and a pronged ring that is rotated by the keyed actuator, wherein the pronged ring moves the toggle switch between first and second positions.

9. The exit alarm escutcheon system of claim 3, further comprising an indicator that is put into operation when the system is armed.

10. The exit alarm escutcheon system of claim 9, wherein the indicator comprises a lamp or light emitting diode that lights or flashes when put into operation.

11. The exit alarm escutcheon system of claim 9, wherein the indicator comprises a sound transducer that sounds when put into operation.

12. The exit alarm escutcheon system of claim 11, wherein the sound transducer generates an audible chirp when put into operation.

13. The exit alarm escutcheon system of claim 1, wherein the alarm comprises a sound transducer that sounds when put into operation.

14. The exit alarm escutcheon system of claim 1, wherein the alarm emits light when put into operation.

15. The exit alarm escutcheon system of claim 1, wherein the alarm generates a wireless signal receivable at a location outside of the housing when put into operation.

16. The exit alarm escutcheon system of claim 1, wherein the trigger comprises a microswitch.

17. The exit alarm escutcheon system of claim 1, further comprising a tamper switch disposed in the interior of the housing and adapted to be responsive to removal of the housing from the door, wherein the tamper switch signals the alarm to put the alarm into operation upon removal of the housing from the door.

18. The exit alarm escutcheon system of claim 1, further comprising an electrical connection for a power source external to the housing.

19. The exit alarm escutcheon system of claim 1, further comprising a power source disposed within the housing, including at least one battery.

33. The exit alarm escutcheon of claim 1, wherein all components of the exit alarm escutcheon system are within the housing or in contact with the housing.

20. An exit alarm escutcheon system for a door latch assembly for a door, the door having an interior side, the latch assembly including an interior latch operator and an associated spindle operatively connected to a latch, the exit alarm escutcheon system comprising:

a housing of unitary construction having a substantially open side adapted to be mounted to the interior side of the door without extending into the door, wherein the housing has an interior, and wherein the housing and a plane across the substantially open side of the housing define a volume that is the interior of the housing;

an alarm disposed within the interior of the housing; and

a trigger adapted to be disposed within the door outside of the housing and adapted to be actuated by movement of the interior latch operator and the associated spindle, and not by movement of an exterior latch operator or a lock, regardless of whether the exterior latch operator is locked,

wherein actuation of the trigger causes a signal to be sent to the alarm to put the alarm into operation.

21. The exit alarm escutcheon system of claim 20, further comprising an electronic module disposed within the interior of the housing for providing an input signal to the alarm, wherein the trigger signals the electronic module upon movement of the interior latch operator and the associated spindle, causing the electronic module to send the input signal to the alarm to put the alarm into operation.

22. The exit alarm escutcheon system of claim 21, further comprising a switch that in a first position arms the system to be capable of putting the alarm into operation and in a second position disarms the system so that the system is incapable of putting the alarm into operation, wherein the electronic module is electrically connected to and signals the switch, such that in the first position the switch signals back to the electronic module, and in the second position the switch does not signal back to the electronic module.

23. The exit alarm escutcheon system of claim 20, further comprising a tamper switch disposed in the interior of the housing and adapted to be responsive to removal of the housing from the door, wherein the tamper switch signals the alarm to put the alarm into operation upon removal of the housing from the door.

24. An exit alarm escutcheon system for a door latch assembly for a door, the door having an interior side, the latch assembly including an interior latch operator and an associated spindle operatively connected to a latch, the exit alarm escutcheon system comprising:

a housing of unitary construction having a substantially open side adapted to be mounted to the interior side of the door without extending into the door, wherein the housing has an interior, and wherein the housing and a plane across the substantially open side of the housing define a volume that is the interior of the housing;

a sound transducer disposed within the interior of the housing;

an electronic module disposed within the interior of the housing for providing an input signal to the sound transducer;

a trigger disposed within the interior of the housing and adapted to be actuated by movement of the interior latch operator and the associated spindle, and not by movement of an exterior latch operator or a lock, regardless of whether the exterior latch operator is locked; and

a toggle switch disposed in the interior of the housing that in a first position arms the system to be capable of putting the sound transducer into operation and in a second position disarms the system so that the system is incapable of putting the sound transducer into operation, wherein the electronic module is electrically connected to and receives signals from the toggle switch, such that in the first position the toggle switch signals back to the electronic module, and in the second position the toggle switch does not signal back to the electronic module;

wherein the movement of the interior latch operator causes the trigger to signal the electronic module, causing the electronic module to send the input signal to the sound transducer to put the sound transducer into operation.

25. The exit alarm escutcheon system of claim 24, further comprising a tamper switch disposed in the interior of the housing and adapted to be responsive to removal of the housing from the door, wherein the tamper switch signals the alarm to put the alarm into operation upon removal of the housing from the door.

26. An interior-side alarmed exit door system comprising:

a door having an interior side with an interior surface and including a latch assembly including an interior latch operator and an associated spindle operatively connected to a latch;

a housing of unitary construction having a substantially open side mounted to the interior side of the door, wherein the housing has an interior, and wherein the housing and a plane across the substantially open side of the housing coincident with the interior surface of the door define a volume that is the interior of the housing;

an alarm disposed within the interior of the housing; and

a trigger disposed within the interior of the housing and actuated by movement of the interior latch operator and the associated spindle, and not by movement of an exterior latch operator or a lock, regardless of whether the exterior latch operator is locked,

wherein actuation of the trigger causes a signal to be sent to the alarm to put the alarm into operation.

27. The interior-side alarmed exit door system of claim 26, further comprising an electronic module disposed within the interior of the housing for providing an input signal to the alarm, wherein the movement of the interior latch operator and the associated spindle causes the trigger to signal the electronic module, causing the electronic module to send the input signal to the alarm to put the alarm into operation.

28. The interior-side alarmed exit door system of claim 27, further comprising a switch that in a first position arms the system to be capable of putting the alarm into operation and in a second position disarms the system so that the system is incapable of putting the alarm into operation, wherein the electronic module is electrically connected to and receives signals from the switch, such that in the first position the switch signals back to the electronic module, and in the second position the switch does not signal back to the electronic module.

29. A method of making an exit alarm escutcheon system for a door latch assembly, the door having an interior side, the latch assembly including an interior latch operator and an associated spindle operatively connected to a latch, the method comprising:

providing a housing of unitary construction having a substantially open side adapted to be mounted to the interior side of the door without extending into the door, wherein the housing has an interior, and wherein the housing and a plane across the substantially open side of the housing define a volume that is the interior of the housing;

providing an alarm disposed within the interior of the housing;

providing a trigger adapted to be responsive to movement of the interior latch operator and the associated spindle, and not to movement of an exterior latch operator or a lock, regardless of whether the exterior latch operator is locked, disposed within the interior of the housing;

providing an electronic module disposed within the interior of the housing for providing an input signal to the alarm; and

electrically connecting the alarm and the trigger to the electronic module.

30. A method of installing an exit alarm escutcheon system, the method comprising:

providing a door having an interior side with an interior surface and including a latch assembly including an interior latch operator and an associated spindle operatively connected to a latch;

mounting a housing of unitary construction to the interior side of the door, the housing having a substantially open side mounted to the interior side of the door, wherein the housing has an interior, and wherein the housing and a plane across the substantially open side of the housing coincident with the interior surface of the door define a volume that is the interior of the housing, wherein an alarm and an electronic module are disposed within the interior of the housing, the electronic module for providing an input signal to the alarm;

providing a trigger responsive to movement of the interior latch operator and the associated spindle, and not to movement of an exterior latch operator or a lock, regardless of whether the exterior latch operator is locked, disposed within the interior of the housing; and

electrically connecting the alarm and the trigger to the electronic module.

31. The method of claim 30, wherein the door is an existing door including mechanical locking and latching, and further comprising:

removing an existing latch operator;

removing an existing escutcheon or plate; and

replacing the existing escutcheon or plate with the housing,

wherein the remainder of the latch assembly is left in place.

32. An exit alarm escutcheon system for a door latch assembly for a door, the door having an interior side, the latch assembly including an interior latch operator and an associated spindle operatively connected to a latch, the exit alarm escutcheon system comprising:

a housing of unitary construction having a substantially open side adapted to be mounted to the interior side of the door, wherein the housing has an interior, and wherein the housing and a plane across the substantially open side of the housing define a volume that is the interior of the housing;

an alarm disposed within the interior of the housing;

a trigger disposed within the interior of the housing and adapted to be actuated by movement of the interior latch operator and the associated spindle, and not by movement of an exterior latch operator or a lock, regardless of whether the exterior latch operator is locked;

an electronic module disposed within the interior of the housing for providing an input signal to the alarm, wherein the trigger is adapted to signal the electronic module upon movement of the interior latch operator and the associated spindle, causing the electronic module to send the input signal to the alarm to put the alarm into operation;

a toggle switch disposed in the interior of the housing that in a first position arms the system to be capable of putting the alarm into operation and in a second position disarms the system so that the system is incapable of putting the alarm into operation, wherein the electronic module is electrically connected to and signals the switch, such that in the first position the toggle switch signals back to the electronic module, and in the second position the toggle switch does not signal back to the electronic module; and

a keyed actuator and a pronged ring that is rotated by the keyed actuator, wherein the pronged ring moves the toggle switch between first and second positions.