IP Library Granted Patent US 7,347,461
Granted Patent B2
US 7,347,461 · App. 10/299,422 · Granted Mar 25, 2008

Door handle actuated electronic egress system

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Quick Facts
Patent No.
US 7,347,461
App. No.
10/299,422
Granted
Mar 25, 2008
Kind
B2
Abstract

An electronic egress system includes at least one door, each door having a handle defining an interior area, an actuator and an exit control assembly including a switch assembly located substantially within the handle's interior. The handle is movable relative to the actuator such that motion of the handle relative the actuator changes the switch assembly from a first switch state to a second switch state.

Claims (51)

1. An electronic egress system, comprising:

door panel;

an at least partially hollow movable component defining an enclosed interior space and movably mounted to the door panel whereby the movable component can move relative to the door panel upon being activated by a force input;

a switch assembly mounted within the interior space of the movable component outputting a switch signal when activated by displacement of the movable component relative to the door panel; and

a latching assembly responsive to the switch signal,

wherein the movable component is attached to the door panel at a pair of pivot points, and

wherein the switch assembly mounted within the interior space of the movable component is movable relative to the door panel.

2. The electronic egress system of claim 1 further including a switch signal path assembly.

3. The electronic egress system of claim 2 wherein the switch signal path assembly includes an electrically conductive path from the switch assembly to the latching assembly.

4. The electronic egress system of claim 3 further comprising:

a top door rail assembly; and wherein

the movable component is a door handle extending to the top door rail assembly;

the door panel is pivotally mounted to a door header about a pivot axis;

the latching assembly is situated in the door header above the top door rail assembly; and

the electrically conductive path includes conductive wires extending from the switch assembly through the interior space of the door handle to the top door rail assembly and extending in the top door rail assembly towards the pivot axis, out of the top door rail assembly and into the door header above the top door rail assembly and to the latching assembly.

5. The electronic egress system of claim 3 further comprising:

a bottom door rail assembly; and wherein

the movable component is a door handle extending to the top door rail assembly;

the door panel is pivotally mounted to a door frame about a pivot axis;

the latching assembly is situated in the door frame beneath the bottom door rail assembly; and

the electrically conductive path includes conductive wires extending from the switch assembly through the space of the door handle to the bottom door rail assembly and extending in the bottom door rail assembly towards the pivot axis, out of the bottom door rail assembly and into the door frame below the bottom door rail assembly and to the latching assembly.

6. The electronic egress system of claim 1 wherein the switch assembly includes a momentary contact switch.

7. The electronic egress system of claim 1 wherein:

the switch signal includes a wireless signal; and

the latching assembly includes a wireless signal receiver.

8. The electronic egress system of claim 1 , wherein the latching assembly comprises an electromagnetic lock.

9. The electronic egress system of claim 1 , further comprising:

an aperture formed in the movable component providing access into the interior space of the movable component;

an actuator protruding from a surface of the door panel at a location proximate to the aperture of the movable component.

10. The electronic egress system of claim 9 wherein the actuator is adapted to engage the switch assembly in the interior space of the movable component.

11. A method of opening an electronically actuated egress system comprising:

mechanically engaging a switch assembly located in an enclosed interior space defined by at least a partially hollow movable component, by displacing the movable component relative to a door panel, wherein the movable component is attached to the door panel at a pair of pivot points and the switch assembly located in the enclosed interior space is movable relative to the door panel;

outputting a switch signal from a switch assembly responsive to the mechanical engagement; and

actuating a latching assembly responsive to the switch signal.

12. The method of claim 11 further comprising providing a force input to the movable component thereby displacing the movable component relative to the door panel.

13. The method of claim 11 further comprising actuating a momentary contact switch in said switch assembly.

14. The method of claim 11 further comprising transmitting said switch signal to said latching assembly via a switch signal path.

15. The electronic egress system of claim 11 wherein the step of displacing the movable component includes displacing a door handle relative to a door panel a predetermined distance sufficient to actuate the switch assembly.

16. The electronic egress system of claim 11 , wherein mechanically engaging the switch assembly includes moving the movable component relative to an actuator protruding from the door panel at a location proximate to an aperture of the movable component.

17. A electronically actuated egress system comprising:

an at least partially hollow movable component means defining an enclosed interior space and displaceable relative to a door panel;

means for outputting a switch signal from a switch assembly positioned within the interior space and responsive to displacing the movable component; and

means for actuating a latching assembly responsive to the switch signal,

wherein the movable component is attached to the door panel at a pair of pivot points, and

wherein the switch assembly is movable relative to the door panel.

18. The method of claim 17 wherein the means for outputting a switch signal further comprises a means for imparting a momentary contact within said means for outputting a switch signal.

19. An electronic egress system, comprising:

a movable component defining an interior space and movably mountable to a door panel and defining an aperture providing access into the interior space;

a switch assembly mounted within the interior space of the movable component outputting a switch signal when activated by displacement of the movable component, the switch assembly being movable relative to the door panel;

a latching assembly responsive to the switch signal; and

an actuator mountable to protrude from the door panel at a location proximate to the aperture of the movable component.

Assignments (2)
SECURITY AGREEMENT Recorded Apr 29, 2022
From: C.R. LAURENCE CO., INC.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 059823/0192 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2002
From: SPRAGUE, GARY
To: C.R. LAURENCE COMPANY, INC.
Reel/Frame 013512/0212 →