公开(公告)号：US20190271450A1

公开(公告)日：2019-09-05

申请号：US15911943

申请日：2018-03-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert Dallos, Jr. ,  Xiaosong Huang ,  Shannen M. Borngesser ,  Mark R. Gordon

IPC: F21S45/60 ,  F21S45/50 ,  F21S41/20 ,  H05B3/84

Abstract: A lamp assembly includes a housing forming an interior space, and having a first portion and a second portion. A light source is disposed within the interior space and positioned to direct light through the first portion. An electrically resistive coating is disposed on the first portion of the housing, and is operable to heat the first portion to create a positive temperature gradient in which the first portion exhibits a higher temperature than the second portion so that moisture within the interior space condenses on the second portion and not the first portion. A self-contained power supply, including an energy storage device and a solar cell, may be incorporated into the housing. An interior surface of the first portion may be coated with a hydrophobic coating, and an interior surface of the second portion may be coated with a hydrophilic coating.

公开(公告)号：US20190299152A1

公开(公告)日：2019-10-03

申请号：US15937144

申请日：2018-03-27

Applicant: GM Global Technology Operations LLC

Inventor： Paul W. Alexander ,  Robert Dallos, JR. ,  Mark R. Gordon ,  Shannen M. Borngesser

IPC: B01D53/04 ,  F16K31/02 ,  B01D53/26 ,  F21S45/50 ,  F21S45/60

Abstract: A drying system includes an assembly with a housing defining an interior space. The housing has an inner wall with a first opening through which the inner chamber communicates with the outer chamber. The housing has an outer wall with a second opening. A rechargeable desiccant and a door are disposed in the outer chamber, and the door is movable between a first position and a second position. The door at least partially seals the second opening and unseals the first opening when in the first position, and at least partially seals the first opening and unseals the second opening when in the second position. A shape memory alloy actuator moves the door between the first position and the second position in response to a change in temperature of the shape memory alloy.