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Directional differential pressure detector

a detector and differential pressure technology, applied in the direction of instruments, speed/acceleration/shock measurement, measurement devices, etc., can solve problems such as irritating sound

Inactive Publication Date: 2020-05-21
AIRFLOW DIRECTION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables immediate detection of air flow direction and pressure differences, facilitating adjustments to maintain desired air flow conditions and ensuring containment or isolation as needed, while being adjustable and calibrated for various applications.

Problems solved by technology

Such a sound may be irritating to those in close proximity to the lower end of the conduit, particularly if repeated frequently.

Method used

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Examples

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Embodiment Construction

[0068]The present disclosure relates to a device that provides an indication of directional air flow and whether a particular degree of directional differential pressure exists between spaces separated by a wall (e.g., two neighboring rooms). In some embodiments, the device includes one or more elongated conduits with openings, for example, located at opposite ends. As described further herein, the conduit(s) may extend through the wall, or may be located substantially on one side of the wall. A single conduit or multiple conduits may be employed. In some embodiments, an end of one of the conduits may extend into one of the rooms while the opposite end of the conduit does not extend into the other of the rooms. At least one ball, or other movable element, is disposed within a lumen of the conduit and may move freely back and forth along the length of the conduit. Restraints or end stops located at opposite ends of the conduit may be used to contain the ball within the conduit so tha...

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PUM

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Abstract

Methods and apparatuses for indicating the presence of a directional differential pressure between separated adjacent spaces are provided. A differential pressure set point indicator with integral calibration sensing the earth's gravitational horizontal or vertical planes may be configured to correlate multiple potential angles of inclination of a conduit located on one side of a wall to respective threshold differential pressures between two spaces which generate net flow of fluid sufficient to cause a lightweight ball to move from one region of the conduit to an opposing region. The inclination of the conduit may be adjusted through a rotatable configuration similar to a turret-type arrangement.

Description

FIELD[0001]Aspects of the present disclosure relate generally to methods and apparatuses for detecting the presence of a directional differential pressure.DISCUSSION OF RELATED ART[0002]Various applications within hospitals, laboratories, pharmaceutical facilities, clean room facilities, etc., often require a particular direction of air flow to be maintained, such as between neighboring rooms, compartments, corridors, ducts, or other spaces. The pressure of a room relative to adjacent space(s) will determine the net direction of air flow through an opening into or out of the room.[0003]For example, a hospital operating room, containing a patient who is undergoing surgery, may be supplied with highly filtered air so as to achieve a positive pressure, i.e., so that more air flows out of the room than into the room, thereby preventing dirty or infectious air from entering the room and entering the patient's wound. This positive pressure is accomplished by supplying clean air to the ope...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G01P13/00G01L19/12G01L13/02
CPCG01L19/12G01L13/02G01P13/0066
Inventor WISEMAN, BRIAN M.
Owner AIRFLOW DIRECTION INC
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