公开(公告)号：US20230277971A1

公开(公告)日：2023-09-07

申请号：US18178057

申请日：2023-03-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Glen O. Gregerson ,  Mark A. Sanocki ,  Riley J. Hillstrom ,  Laszlo Titkos ,  Fernando J. Viso

IPC: B01D46/00 ,  B01D46/52

CPC classification number: B01D46/0016 ,  B01D46/521 ,  B01D2275/203

Abstract: The present disclosure generally relates to air filters expandable from a collapsed arrangement to an expanded, end-use arrangement and to methods of making, using, and installing such air filters. Some embodiments relate to an air filter having an expanded state and a collapsed state. The air filter includes a filter media assembly including (1) filter media including a plurality of pleats, (2) first and second opposing sides, and (3) first and second opposing ends. The air filter also includes a shape retention structure capable of being connected to at least a portion of the filter media assembly and capable of retention the filter media assembly in the expanded state. A spacing distance between adjacent pleats in the filter media is greater in the expanded state of the air filter than in the collapsed state of the air filter. In some embodiments, the air filter is an HVAC air filter.

公开(公告)号：US20230277970A1

公开(公告)日：2023-09-07

申请号：US18178093

申请日：2023-03-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mark A. Sanocki ,  Glen O. Gregerson ,  Riley J. Hillstrom ,  Michael L. Munson

IPC: B01D46/00

CPC classification number: B01D46/0005 ,  B01D46/0041 ,  B01D46/0054 ,  B01D2279/50

Abstract: A filter frame assembly includes a main frame including a first end and a second end, and a spindle unit disposed at the first end. The spindle unit includes a spindle frame, a dispensing spindle non-rotatably coupled to the spindle frame, and a receiving spindle rotatably coupled to the spindle frame. Each of the dispensing spindle and the receiving spindle is configured to receive a filter web thereon in a wound configuration. The main frame is insertable through a filter slot of an HVAC system from the second end, such that the main frame is at least partially received within the HVAC system and the spindle unit is disposed external to the HVAC system. The filter web extends from the dispensing spindle towards the second end of the main frame and extends back to the receiving spindle, while being at least partially received in the main frame.

公开(公告)号：US20240149198A1

公开(公告)日：2024-05-09

申请号：US18386008

申请日：2023-11-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Glen O. Gregerson ,  Riley J. Hillstrom ,  Laszlo Titkos ,  Bo Yang

IPC: B01D46/00 ,  B01D46/12

CPC classification number: B01D46/0001 ,  B01D46/0005 ,  B01D46/0016 ,  B01D46/0047 ,  B01D46/12 ,  B01D2267/30 ,  B01D2279/40

Abstract: A kit that includes a base with a floor and four edges; a cover with a ceiling and four edges; and, four side panels, at least one of which is a framed air filter. The kit may be nestable. The kit is assemblable into an upwardly-open, horizontally-closed air-filtration assembly. The floor of the base may include multiple through-cuts and hinged connections that define multiple areas of the floor that are rotatable upward to provide multiple upwardly-protruding tabs; the ceiling of the cover may include multiple through-cuts and hinged connections that define multiple areas of the ceiling that are rotatable downward to provide multiple downwardly-protruding tabs.

公开(公告)号：US20230024412A1

公开(公告)日：2023-01-26

申请号：US17757329

申请日：2020-12-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James E. Lockridge ,  Kevin W. Gotrik ,  Raymond J. Kenney ,  Caleb T. Nelson ,  Daniel J. Schmidt ,  Riley J. Hillstrom

IPC: G02B5/02 ,  G02B5/00 ,  B05D5/06 ,  B05D3/04 ,  B05D3/02

Abstract: The present disclosure provides a light control film and a method of manufacturing the same. The method includes providing a microstructured film. The microstructured film includes a plurality of light transmissive regions alternated with channels. The microstructure film is defined by a top surface and a pair of side surfaces of each light transmissive region and a bottom surface of each channel. The method further includes coating the pair of side surfaces of each light transmissive region and the bottom surface of each channel with a coating. The coating includes light absorbing particles that are dispersed in a liquid. The method further includes drying the coating such that the light absorbing particles are selectively deposited on the pair of sides surfaces of each light transmissive region.