Larry A Hunt

US Patent:

6427387, Aug 6, 2002

Filed:

Oct 27, 1999

Appl. No.:

09/427813

Inventors:

Larry R. Hunt - Lenoir City TN

Assignee:

Yale Security, Inc. - Monroe NC

International Classification:

E06B 500

US Classification:

49365, 292219

Abstract:

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.

US Patent:

7469942, Dec 30, 2008

Filed:

Sep 30, 2002

Appl. No.:

10/497116

Inventors:

Andrew Whitaker - Knoxville TN, US
J. Steven Gray - Maryville TN, US
Sidney J. Lampley - Monroe NC, US
Michael Ensley - Norris TN, US
Larry R. Hunt - Sebring FL, US

Assignee:

Yale Security Inc. - Monroe NC

International Classification:

E05B 65/10
E05B 65/00

US Classification:

292 92, 292 93, 292DIG 65, 70 92

Abstract:

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.

US Patent:

7832778, Nov 16, 2010

Filed:

Dec 2, 2008

Appl. No.:

12/326472

Inventors:

Andrew Whitaker - Knoxville TN, US
John Steven Gray - Maryville TN, US
Larry R. Hunt - Sebring FL, US
Sidney J. Lampley - Monroe NC, US
Michael L. Ensley - Norris TN, US

Assignee:

Yale Security Inc. - Monroe NC

International Classification:

E05B 65/10
E05B 65/00

US Classification:

292 92, 292 93, 292DIG 65, 70 92

Abstract:

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.

US Patent:

58160175, Oct 6, 1998

Filed:

Feb 2, 1996

Appl. No.:

8/595786

Inventors:

Larry R. Hunt - Lenoir City TN
Daniel L. Hibbs - Colby WI
Mark A. Mason - Amherst Junction WI

Assignee:

Yale Security Inc. - Monroe NC

International Classification:

A47B 1308

US Classification:

5278411

Abstract:

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.

US Patent:

50428519, Aug 27, 1991

Filed:

Jul 30, 1990

Appl. No.:

7/559713

Inventors:

Larry R. Hunt - Lenoir City TN

Assignee:

Yale Security Inc. - Monroe NC

International Classification:

E05C 112

US Classification:

292 21

Abstract:

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.