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US 11,905,733 B2Granted
Dampener for an exit device
AssigneeASSA ABLOY Accessories and Door Controls Group, Inc.
InventorsVincent Baker, Michael Connell, Michael Swearman, Douglas Thompson
Life of this patent
Estimating the term…
Abstract
A dampener for an exit device may be disposed between a portion of an exit device actuator and an exit device chassis so that the dampener dampens vibrations to reduce noise of the exit device and/or inhibit unintentional movement of the actuator to an actuated position. The dampener may be composed at least partially of a viscoelastic material.
Claims19
An exit device comprising:
- a chassis;
- a lever disposed fully inside the chassis configured to move between a first position and a second position;
- a latch configured to move between an engaged position and a disengaged position, wherein the latch is in the engaged position when the lever is in the first position and is in the disengaged position when the lever is in the second position;
- and
- a dampener disposed inside the chassis between the lever and an inside surface of the chassis and in contact with both the lever and the inside surface of the chassis, wherein the dampener is configured to compress when the lever is moved to the second position;
- wherein the lever may be moved between the first position and the second position by applying a force to an outside surface of the chassis.
3 more elements
A method of installing a dampener into an exit device, comprising:
- attaching a base of the dampener to a lever of the exit device, wherein the lever is configured to rotate to operate a latch of the exit device;
- and
- positioning the lever and attached dampener fully inside a chassis of the exit device, wherein the dampener contacts an inside surface of the chassis when the lever and the attached dampener are positioned inside the chassis;
- wherein the lever is configured to rotate by applying a force to an outside surface of the chassis.
1 more element
Dependencies are inferred from the claim text.