公开(公告)号：US20250164673A1

公开(公告)日：2025-05-22

申请号：US18841431

申请日：2023-04-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Sean M. Sweetnam ,  Andrew C. Smith ,  Stephen P. Maki ,  David J. Rowe ,  Timothy J. Hebrink ,  Daniel M. Pierport ,  Kevin W. Gotrik ,  Mark D. Weigel ,  James A. Phipps ,  Kevin D. Hagen ,  Mark B. O'Neill

IPC: G02B5/08

Abstract: Light shielding articles are provided. Light shielding articles include a first multilayer optical film comprised of alternating first and second polymeric optical layers collectively reflecting at an incident light angle of at least one of 0°, 15°, 30°, 45°, 60°, or 75°, an average of at least 70, 80, 90, or 95 percent of incident visible light over at least a wavelength range from 400 nanometers (nm) to 700 nm. The light shielding articles further include either a second multilayer optical film or a barrier coating disposed on the first multilayer optical film. The light shielding article transmits at an incident light angle of at least one of 0°, 15°, 30°, 45°, 60°, or 75°, an average of at least 70, 80, 90, or 95 percent of incident radio frequency waves in at least one wavelength range from 1 mm to 10 mm, 10 mm to 100 mm, or 100 mm to 1000 mm. Additionally, an electromagnetic receiver and/or emitter is provided that includes a light shielding article according attached to at least a portion of the electromagnetic receiver and/or emitter.

公开(公告)号：US12263430B2

公开(公告)日：2025-04-01

申请号：US17764627

申请日：2020-10-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew W. Gorrell ,  John B. Stender ,  Tommie W. Kelley ,  Andrew C. Smith ,  Windy A. Santa Cruz ,  John F. Reed ,  Jacob D. Carlson ,  Marcus W. Rein ,  Jessalyn A. Cox ,  Zachary W. Boughton ,  Michael J. Stern

IPC: B01D46/00 ,  B01D46/10 ,  F24C15/20

Abstract: Filter assemblies are described. In particular, a filter securement assembly for receiving and retaining a filter media in an exhaust hood includes a main panel defining a first end and an opposed second end, a first retainment surface adjacent the first end of the main panel, a first retainment lip adjacent the first retainment surface, a second retainment surface adjacent the second end of the main panel and a second retainment lip adjacent the second retainment surface.

公开(公告)号：US20220339571A1

公开(公告)日：2022-10-27

申请号：US17764627

申请日：2020-10-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew W. Gorrell ,  John B. Stender ,  Tommie W. Kelley ,  Andrew C. Smith ,  Windy A. Santa Cruz ,  John F. Reed ,  Jacob D. Carlson ,  Marcus W. Rein ,  Jessalyn A. Cox ,  Zachary W. Boughton ,  Michael J. Stern

IPC: B01D46/00 ,  B01D46/10 ,  F24C15/20

Abstract: Filter assemblies are described. In particular, a filter securement assembly for receiving and retaining a filter media in an exhaust hood includes a main panel defining a first end and an opposed second end, a first retainment surface adjacent the first end of the main panel, a first retainment lip adjacent the first retainment surface, a second retainment surface adjacent the second end of the main panel and a second retainment lip adjacent the second retainment surface.