公开(公告)号：USD978443S1

公开(公告)日：2023-02-14

申请号：US29753638

申请日：2020-10-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Designer： Gregory G. Jager ,  Douglas D. Fletcher ,  Jason T. Lunn ,  Eric O. Hemberg ,  Oscar M. Hemberg ,  Anders P. Hellberg ,  Marco D'Adamo

公开(公告)号：US20220404054A1

公开(公告)日：2022-12-22

申请号：US17779712

申请日：2020-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Brian D. Gale ,  Andrew R. Fox ,  Alonso M. Hernandez ,  Gregory G. Jager ,  Abby R. Lemon ,  Nicolas W. Tremain

IPC: F24F11/52 ,  F24F8/108 ,  B01D46/42

Abstract: A powered room air purifier with a visual indicator of air quality, the visual indicator including: a reflector that defines a forwardly-open-ended reflecting cavity and that comprises at least one through-opening in a floor or ceiling of the reflector; at least one diffuser layer that covers the forward opening of the forward-open-ended reflecting cavity; and, at least one LED light source that is positioned within the at least one through-opening, the LED light source and the reflector being configured so that the LED light source is shielded from line-of-sight view along a forward-rearward axis of the powered room air purifier.

公开(公告)号：US09681506B2

公开(公告)日：2017-06-13

申请号：US14442479

申请日：2013-12-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Martin J. Vos ,  Gregory G. Jager

IPC: H05B37/00 ,  H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0842 ,  H05B33/0845 ,  H05B37/02 ,  Y02B20/346

Abstract: One aspect of the present disclosure directs to a switch circuit including an isolator circuit to allow detection of switch states of a multilevel light switch. Another aspect of the present disclosure directs to a lighting assembly containing light emitting diodes (LEDs) of different colors, where the lighting assembly produces light of different color depending on the switch state of a multilevel light switch.