Directional differential pressure detector
AssigneeAirFlow Direction, Inc.
InventorBrian M. Wiseman
Life of this patent
Estimating the term…
Abstract
Methods and apparatuses for indicating the presence of a directional differential pressure between separated adjacent spaces are provided. At least one movable element may be movable within an inclined conduit from a first vertically lower region to a second vertically higher region in response to a differential pressure between a first space and a second space separated by a barrier. The inclination of the conduit may be adjustable along a plane transverse to the barrier.
Claims25
A device comprising:
- an inclined conduit to be in fluid communication with a first space and a second space when the device is installed on a barrier separating the first space and second space, the barrier having a first side facing the first space and a second side facing the second space, wherein an angle of inclination of the inclined conduit is adjustable with respect to a horizontal reference plane such that a first region of the inclined conduit is vertically lower than a second vertically higher region of the inclined conduit, wherein the inclined conduit adjustable along a plane transverse to the barrier such that the angle of inclination of the inclined conduit is adjustable relative to the horizontal reference plane, and wherein the angle of inclination of the inclined conduit is adjustable from only the second side of the barrier;
- and
- at least one movable element movable within the inclined conduit from the first vertically lower region to the second vertically higher region in response to a differential pressure between the first space and the second space.
A device for indicating a presence of a directional differential pressure between a first space and a second space separated from the first space by a barrier, the device comprising:
- an inclined conduit in fluid communication with the first space and the second space, wherein the inclined conduit is inclined relative to a horizontal reference plane such that the inclined conduit includes a first vertically lower region and a second vertically higher region, wherein the inclined conduit is adjustable along a plane transverse to the barrier such that the angle of inclination of the inclined conduit is adjustable relative to the horizontal reference plane;
- at least one movable element disposed within the inclined conduit and movable from the first region of the inclined conduit to the second region of the inclined conduit in response to a differential pressure between the first space and the second space;
- a differential pressure set point indicator configured to correlate at least one angle of inclination of the inclined conduit with respect to the horizontal reference plane to a respective threshold differential pressure between the first space and the second space;
- and
- a roll indicator configured to indicate whether the device is aligned with a roll orientation with respect to gravity.
A device for indicating a presence of a directional differential pressure between a first space and a second space separated from the first space by a barrier, the device comprising:
- an inclined conduit in fluid communication with the first space and the second space, wherein the inclined conduit is inclined relative to a horizontal reference plane such that the inclined conduit includes a first vertically lower region and a second vertically higher region, wherein the inclined conduit is adjustable along a plane transverse to the barrier such that the angle of inclination of the inclined conduit is adjustable relative to the horizontal reference plane;
- at least one movable element disposed within the inclined conduit and movable from the first region of the inclined conduit to the second region of the inclined conduit in response to a differential pressure between the first space and the second space;
- a pitch indicator configured to indicate whether the device is at an inclination relative to the horizontal reference plane with respect to gravity;
- and
- a roll indicator configured to indicate whether the device is at a roll orientation with respect to gravity.
Dependencies are inferred from the claim text.