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    Air filter devices with gap sealing unit
    1.
    发明授权
    Air filter devices with gap sealing unit 有权

    公开(公告)号：US10940416B2

    公开(公告)日：2021-03-09

    申请号：US15762409

    申请日：2016-09-16

    申请人： 3M INNOVATIVE PROPERTIES COMPANY

    发明人： Glen O. Gregerson ,  Thomas J. Herbrand ,  David J. Prince ,  Danielle M. Schreppel ,  Craig D. Thompson ,  Judd D. Olson

    IPC分类号： B01D46/00 ,  B01D46/52 ,  F24F13/28 ,  F24F3/16 ,  B01D46/10

    摘要： An air filter device including an air filter unit and an expansion unit. The air filter unit includes a filter media assembly maintained by an outer frame assembly. The outer frame assembly defines exterior length, width and depth dimensions of the air filter device in an initial state. The expansion unit provides one or more of an expanded length, width or depth in an expanded state of the air filter device. Portions or an entirety of the expansion unit can provided apart from the air filter unit in a deliver condition of the air filter device, or can be assembled to the air filter unit prior to delivery to a user. The air filter devices of the present disclosure are useful with a wide variety of differently size air handling devices, able to readily seal with an air handling device compartment via the expansion unit.

    AIR FILTER DEVICES WITH GAP SEALING UNIT
    6.
    发明申请
    AIR FILTER DEVICES WITH GAP SEALING UNIT 有权

    公开(公告)号：US20210187425A1

    公开(公告)日：2021-06-24

    申请号：US17192137

    申请日：2021-03-04

    申请人： 3M INNOVATIVE PROPERTIES COMPANY

    发明人： Glen O. Gregerson ,  Thomas J. Herbrand ,  David J. Prince ,  Danielle M. Schreppel ,  Craig D. Thompson ,  Judd D. Olson

    IPC分类号： B01D46/00 ,  B01D46/52 ,  F24F13/28 ,  B01D46/10 ,  F24F8/10

    摘要： An air filter device including an air filter unit and an expansion unit. The air filter unit includes a filter media assembly maintained by an outer frame assembly. The outer frame assembly defines exterior length, width and depth dimensions of the air filter device in an initial state. The expansion unit provides one or more of an expanded length, width or depth in an expanded state of the air filter device. Portions or an entirety of the expansion unit can provided apart from the air filter unit in a deliver condition of the air filter device, or can be assembled to the air filter unit prior to delivery to a user. The air filter devices of the present disclosure are useful with a wide variety of differently size air handling devices, able to readily seal with an air handling device compartment via the expansion unit.

    Expandable air filters
    10.
    发明授权
    Expandable air filters 有权

    公开(公告)号：US10981099B2

    公开(公告)日：2021-04-20

    申请号：US15762713

    申请日：2016-09-21

    申请人： 3M INNOVATIVE PROPERTIES COMPANY

    发明人： Glen O. Gregerson ,  Laura C. Chesnut ,  Danielle M. Schreppel ,  Stephen M. Sanocki ,  Zhiqun Zhang ,  Craig D. Thompson ,  David J. Prince

    IPC分类号： B01D46/00 ,  B01D46/52 ,  B01D46/10

    摘要： An expandable air filter. The air filter including a filter media assembly, an outer frame assembly, and at least one support member. The filter media assembly defines opposing, first and second major faces and a perimeter. The outer frame assembly is arranged about the perimeter. The support member is connected to the outer frame assembly and extends across the first major face. Further, the support member defines a line of separation at which the support member can be separated into first and second segment to permit expansion of the air filter. The filter media can form a plurality of pleats, with at least one pleat being free of bonding to the outer frame assembly. The unbonded pleat experiences expansion as the air filter transitions to an expanded state. The air filter can be configured for expansion in one or both of a length and width direction.