Yale Security Inc.

Larry R Hunt

Sidney J Lampley

Andrew Whitaker

Michael L Ensley

Michael Ensley

Steven J Gray

J Steven Gray

John Steven Gray

Daniel L Hibbs

Mark A Mason

A touch bar () exit device () comprises a retractor element () disposed in the housing () for substantially restilinear movement. The retractor element () connects the touch bar () and the latch bolt () such that the retractor element () and the latch bolt () are moved toward the retracted position in response to movement of the touch bar (). An electrically energizable locking mechanism () in the exit device () includes a reciprocating plunger () moving transverse to the retractor element (). When energized, the locking mechanism () is operative to move the plunger () to the projected locking position to prevent retraction of the latch bolt. A time delay circuit is connected to the locking mechanism (). A switch () actuated in response to movement of the touch bar () is connected to the time delay circuit for starting a predetermined time interval for temporarily delaying deenergization of the locking mechanism (). When the time delay circuit interrupts power to the locking mechanism (), the plunger () moves allowing the latch bolt () to move to the retracted position.

Delayed egress exit device

A removable mullion assembly comprises a fitting attached in the door opening for receiving an end of the mullion. The fitting houses a locking mechanism for selectively holding the mullion in place in the fitting. The locking mechanism comprises a latch bolt which in an extended position engages the end of the mullion and secures the mullion in the fitting. A key-operated mechanism, such as a cylinder lock, is operatively connected to the bolt for moving the latch bolt to the retracted position in response to turning the key in the cylinder. An actuating element is also provided which is activated by the end of the mullion as the mullion enters the retaining element for moving the bolt to the retracted position. The locking mechanism may further comprise a blocking element to block movement of the latch bolt from the extended position. The blocking element may be moved to the non-blocking position as the mullion is inserted into the retaining element by a release lever which is actuated by the end of the mullion or in response to turning the key in the cylinder. The new fitting allows the mullion to be mounted to the top fitting and in the door opening without the need for latch or lock components in the mullion. Having the lock mechanism permanently mounted in the fitting prevents damage and contamination to the components thereof when the mullion is removed and laid on the floor.

Removable mullion assembly

A fire retardant door having a vertical latch stile extending the length of the stile for receiving the elements of a concealed vertical rod exit device therein along with an expanding, fire resistant material, preferably an intumescent compound, for sealing the opening when subjected to heat. The vertically reciprocating exit device rods disposed in the opening are operably connected to bolts disposed in the end of the stile openings, the bolts moveable in response to movement of the vertically reciprocating element from a retracted position within the door edge opening to an extended position to engage the door frame. The composition of the door and arrangement of the exit device elements is selected for a high fire rating, and preferably includes a wooden outer layer provided on each of the major faces of the door. A fire retardant door latch stile for housing the elements of a concealed vertical rod exit device is also provided, the stile defining a vertical opening extending the length of the stile for receiving the exit device elements, and an expanding, fire resistant material, preferably an intumescent compound, is disposed in the stile for sealing the opening when the stile is subjected to heat.

Fire retardant door and exit device for same

Vertical concealed rods are attached to the respective ends of the slider of an exit device by adjustment bolts and bracket assemblies. Each bracket assembly is held adjacent the head of its adjustment bolt by a retainer. Once the cover of the latch mechanism is removed, the bolts are readily accessible from the outside of the door.

Growing community of inventors

Sebring, FL, United States of America

Larry R Hunt