公开(公告)号：US20240053045A1

公开(公告)日：2024-02-15

申请号：US18198547

申请日：2023-05-17

Applicant: Precision Air Products Co.

Inventor： Ted A. Folstad

IPC: F24F11/75 ,  F24F11/49 ,  F24F11/63 ,  F24F7/06 ,  F24F11/77 ,  F24F8/108

CPC classification number: F24F11/75 ,  F24F11/49 ,  F24F11/63 ,  F24F7/065 ,  F24F11/77 ,  F24F8/108 ,  F24F2110/40

Abstract: Systems and methods for controlling operation of one or more fans of an air handling system having one or more filters or filter banks. A current air volume at an inlet side of the fan(s) is determined. In some embodiments, the inlet side air volume is determined via sensed pressure at the inlet side (e.g., pressure transducer open to a flow station at the inlet side). A controller operates to control or regulate a speed of the fan in a manner that maintains a constant air volume through the air handling system, for example based upon a comparison of the current air volume at the fan with a target air volume.

公开(公告)号：US20040192186A1

公开(公告)日：2004-09-30

申请号：US10393985

申请日：2003-03-24

Applicant: PRECISION AIR PRODUCTS CO.

Inventor： Therese Bourgeois ,  Jerry Mithuen ,  A. Ray Boyd

IPC: B01L001/04

CPC classification number: B01D46/12

Abstract: Provided is a filtering system and method that incorporates a portable filter device. The portable filter has a front side and a back side. A medical gurney is positioned proximate the portable filter device. An air intake provided in the back side of the portable filter device and an air outlet diffusion plate provided in the front side of the portable filter device. A first filter is disposed across the air intake and a second filter is disposed behind the air outlet diffusion plate. Also provided is an air drawing device which draws air into the portable filter device through the first filter and sends air out of the filter device through the second filter. Filtered streams of air are then formed above and below a patient supporting area of the gurney, such that the filtered streams of air have a laminar flow. Rollers are provided for permitting the portable filter device to be moved across a floor surface.

Abstract translation: 提供了一种包含便携式过滤装置的过滤系统和方法。 便携式过滤器具有前侧和后侧。 医用轮辋位于便携式过滤装置附近。 设置在便携式过滤装置的后侧的进气口和设置在便携式过滤装置的前侧的排气扩散板。 第一过滤器布置在进气口两侧，并且第二过滤器设置在出气扩散板的后面。 还提供了一种空气抽吸装置，其通过第一过滤器将空气吸入便携式过滤装置，并通过第二过滤器将空气从过滤装置中排出。 然后在格栅的患者支撑区域的上方和下方形成过滤的空气流，使得过滤的空气流具有层流。 辊子被提供用于允许便携式过滤器装置在地板表面上移动。