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 threshold directional differential pressure between separated adjacent spaces. An inclined conduit contains at least one movable element that indicates whether the pressure difference between the two spaces is at least as high as a threshold pressure difference. The apparatus may provide a compact arrangement while allowing the movable element to have a suitable travel path length within the conduit.
Claims20
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:
- a baseplate;
- a first inclined conduit connected to the baseplate and configured to be fluidically connected to the first space and the second space;
- wherein the first inclined conduit is connected to the baseplate with a first mounting portion, and the first inclined conduit is inclined at a first angle relative to a horizontal plane when the baseplate is oriented vertically;
- wherein the first mounting portion is removable from the baseplate without damaging the baseplate or the first mounting portion;
- at least one movable element disposed within the first inclined conduit and movable from a first, vertically lower region of the first inclined conduit to a second, vertically higher region of the first inclined conduit in response to the directional differential pressure between the first space and the second space being greater than a threshold differential pressure;
- and
- a second mounting portion, wherein when the first mounting portion is removed from the baseplate and the second mounting portion is connected to the baseplate, the second mounting portion is configured to hold an inclined conduit at a second angle, different from the first angle, relative to the horizontal plane when the baseplate is oriented vertically.
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:
- a baseplate;
- an inclined conduit connected to the baseplate and configured to be fluidically connected to the first space and the second space, and the inclined conduit is inclined at an angle relative to a horizontal plane when the baseplate is oriented vertically;
- a mounting portion which supports the inclined conduit, wherein the mounting portion is connected to the baseplate;
- wherein the mounting portion includes a first locator, the baseplate includes a complementary second locator, and the first locator is configured to engage with the second locator to secure and orient the mounting portion at a desired roll orientation relative to the baseplate;
- wherein whenever the baseplate is secured to the barrier such that the baseplate is not rotatable relative to the barrier, and the mounting portion is secured to the baseplate, the angle of the inclined conduit relative to the horizontal plane is not adjustable without removing the mounting portion from the baseplate;
- and
- at least one movable element disposed within the inclined conduit and movable from a first, vertically lower region of the inclined conduit to a second, vertically higher region of the inclined conduit in response to the directional differential pressure between the first space and the second space being greater than a threshold differential pressure.
Dependencies are inferred from the claim text.