Midrail mounted exit device
AssigneeDor-O-Matic, Inc.
InventorsRichard Bettin Cohrs, Jr., Eric K. Arthur, Marlin Austin, Loren D. Mueller
Life of this patent
Estimating the term…
Abstract
An exit device for a door having a first stile, a second stile, and a midrail coupled to the first and second stiles and defining a cutout. The exit device comprises a latching mechanism positioned in the cutout. A pushbar positioned in the cutout encloses the latching mechanism and has a front surface. The front surface is positionable in an extended position and a depressed position. The front surface defines a plurality of apertures which communicate with the latching mechanism. A lid slideably engages the front surface and has a closed position and an open position. The lid covers the plurality of apertures in the closed position.
Claims16
An exit device having a latching mechanism for a door having a first stile, a second stile, and a midrail coupled to the first and second stiles, the midrail defining a cutout, the exit device comprising:
- a latching mechanism positioned in the cutout and having a left-hand orientation and a right-hand orientation, the latching mechanism including a base, a control rod which is substantially parallel to the base, a bell crank coupled to the control rod and rotatably coupled to the base, and a lift arm coupled to the base in a first position when the latching mechanism is in the left-hand orientation and in a second position when the latching mechanism is in the right-hand orientation;
- a pushbar enclosing the latching mechanism and extending into the cutout, the pushbar having an extended position and a depressed position;
- and
- a securing mechanism for securing the latching mechanism in the midrail, the securing mechanism including:
- a shaft having a first end and a second end and defining a longitudinal axis;
- a bracket coupled to the exit device, the bracket defining a first aperture and a second aperture, the first end of the shaft extending through the first aperture and the second end of the shaft extending through the second aperture;
- a first anchor slideably coupled to the shaft and being moveable along the longitudinal axis between a first locked position and a first unlocked position, the first anchor frictionally engaging the door in the first locked position;
- and
- a second anchor slideably coupled to the shaft and being moveable along the longitudinal axis between a second locked position and a second unlocked position, the second anchor frictionally engaging the door in the second locked position.
An exit device having a latching mechanism for a door having a first stile, a second stile, and a midrail coupled to the first and second stiles, the midrail defining a cutout, the exit device comprising:
- a latching mechanism positioned in the cutout and having a left-hand orientation and a right-hand orientation, the latching mechanism including a base, a control rod which is substantially parallel to the base, a bell crank coupled to the control rod and rotatably coupled to the base, and a lift arm coupled to the base in a first position when the latching mechanism is in the left-hand orientation and in a second position when the latching mechanism is in the right-hand orientation;
- and
- a pushbar enclosing the latching mechanism and extending into the cutout, the pushbar having an extended position and a depressed position;
- wherein the pushbar includes a front surface and has an extended position and a depressed position, the front surface defining a plurality of apertures.
An exit device having a latching mechanism for a door having a first stile, a second stile, and a midrail coupled to the first and second stiles, the midrail defining a cutout, the exit device comprising:
- a latching mechanism positioned in the cutout and having a left-hand orientation and a right-hand orientation, the latching mechanism including a base, a control rod which is substantially parallel to the base, a bell crank coupled to the control rod and rotatably coupled to the base, and a lift arm;
- and
- a pushbar enclosing the latching mechanism and extending into the cutout, the pushbar having an extended position and a depressed position;
- wherein the base defines a first predetermined mounting location and a second predetermined mounting location, wherein, when the latching mechanism is in the left-hand orientation, the lift arm is coupleable to the base in the first predetermined mounting location, and wherein, when the latching mechanism is in the right-hand orientation, the lift arm is coupleable to the base in the second predetermined mounting location;
- wherein the base includes an upper edge, and wherein the first mounting location is spaced a first distance from the upper edge and the second mounting location is spaced a second distance from the upper edge, the second distance being greater than the first distance.
An exit device having a latching mechanism for a door having a first stile, a second stile, and a midrail coupled to the first and second stiles, the midrail defining a cutout, the exit device comprising:
- a latching mechanism positioned in the cutout and having a left-hand orientation and a right-hand orientation, the latching mechanism including a base, a control rod which is substantially parallel to the base, a bell crank coupled to the control rod and rotatably coupled to the base, and a lift arm;
- and
- a pushbar enclosing the latching mechanism and extending into the cutout, the pushbar having an extended position and a depressed position;
- wherein the base defines a first predetermined mounting location and a second predetermined mounting location, wherein, when the latching mechanism is in the left-hand orientation, the lift arm is coupleable to the base in the first predetermined mounting location, and wherein, when the latching mechanism is in the right-hand orientation, the lift arm is coupleable to the base in the second predetermined mounting location;
- wherein the pushbar includes a front surface defining a plurality of apertures.
Dependencies are inferred from the claim text.