公开(公告)号：US20220264704A1

公开(公告)日：2022-08-18

申请号：US17597545

申请日：2019-07-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ruixuan He ,  Cameron E. Derry ,  Ranjith Divigalpitiya ,  Paolo Rocca

IPC: H05B3/28 ,  B05D7/24 ,  B05D7/04 ,  B05D3/12 ,  H05B3/14

Abstract: An electrical film heater having a variable thermal output is described herein. The electrothermal film heater comprises a substrate having first and second major surfaces that is characterized by a length and a width. A nonuniform graphite coating layer is disposed on at least one major surface of the substrate creating a variable electrical resistance coating on the substrate along at least one of the length and/or the width of the substrate, and a pair of spaced apart bus bars disposed on top of the graphite coating layer.

公开(公告)号：US10834786B2

公开(公告)日：2020-11-10

申请号：US16069406

申请日：2017-01-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jian Li ,  Paolo Rocca ,  Jonathan M. Cliffen ,  Ranjith Divigalpitiya ,  Frank A. Brandys ,  Anibal S. Sanchez-Garcia ,  Weixing Hou ,  David E. Livingstone ,  Raul P. Moraes

IPC: H05B1/02 ,  H05B3/00 ,  H05B3/56 ,  B32B15/095 ,  B32B15/20 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32 ,  B32B27/36 ,  B32B27/40 ,  C09D175/04 ,  B32B15/08 ,  C09J7/29 ,  B32B27/28 ,  B32B15/085 ,  B32B27/12 ,  B32B27/34 ,  B32B15/06 ,  B32B15/09 ,  B32B5/02 ,  B32B25/10 ,  B32B27/30 ,  B32B25/04 ,  B32B25/08 ,  B32B15/02 ,  B32B27/06 ,  B32B15/082 ,  B32B7/12 ,  B32B7/06 ,  C09J7/24 ,  C09J7/38 ,  C09J9/02 ,  H05B3/14 ,  C08K3/04

Abstract: A heating tape comprises an insulated heating element that includes a heating element layer comprising a polymer composite having conductive particles and at least one set of conductive electrodes at least partially embedded in the polymer composite and extending along at least a substantial portion of the length of the heating tape. A heating tape system for a pipe or other surface, further includes a power ramp controller having a solid state relay component to regulate an in-rush of current to the heating element. The heating tape system also includes a connector having multiple contact points.

公开(公告)号：US20190008000A1

公开(公告)日：2019-01-03

申请号：US16069406

申请日：2017-01-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jian Li ,  Paolo Rocca ,  Jonathan M. Cliffen ,  Ranjith Divigalpitiya ,  Frank A. Brandys ,  Anibal S. Sanchez-Garcia ,  Weixing Hou ,  David E. Livingstone ,  Raul P. Moraes

IPC: H05B3/56 ,  B32B15/095 ,  B32B15/20 ,  B32B27/08 ,  B32B27/40 ,  B32B27/32 ,  B32B27/36 ,  B32B27/20 ,  H05B1/02 ,  H05B3/14 ,  C09J9/02 ,  C09J7/38 ,  C09J7/24

Abstract: A heating tape comprises an insulated heating element that includes a heating element layer comprising a polymer composite having conductive particles and at least one set of conductive electrodes at least partially embedded in the polymer composite and extending along at least a substantial portion of the length of the heating tape. A heating tape system for a pipe or other surface, further includes a power ramp controller having a solid state relay component to regulate an in-rush of current to the heating element. The heating tape system also includes a connector having multiple contact points.