公开(公告)号：US11305235B2

公开(公告)日：2022-04-19

申请号：US17282733

申请日：2019-10-02

Applicant: President and Fellows of Harvard College

Inventor： Jonathan L. Grinham ,  Jack Alvarenga ,  Martin Bechthold ,  Joanna Aizenberg

IPC: B01D53/22 ,  B01D63/06 ,  B01D67/00 ,  B01D69/02 ,  B01D71/02 ,  F24F3/14

Abstract: An evaporative cooling system includes a porous ceramic body with a plurality of dry channels and a plurality of wet channels. The plurality of dry channels are configured to inhibit transfer of water vapor into the dry channels and include a barrier layer that includes a roughened layer with a features size less than 1000 nm and a hydrophobic chemical modification disposed on the roughened layer. The plurality of wet channels are configured to allow transfer of water vapor.

公开(公告)号：US11890579B2

公开(公告)日：2024-02-06

申请号：US17679998

申请日：2022-02-24

Applicant: President and Fellows of Harvard College

Inventor： Jonathan L. Grinham ,  Jack Alvarenga ,  Martin Bechthold ,  Joanna Aizenberg

IPC: B01D53/22 ,  B01D63/06 ,  B01D67/00 ,  B01D69/02 ,  B01D71/02 ,  F24F3/14

CPC classification number: B01D63/066 ,  B01D67/0041 ,  B01D67/0048 ,  B01D67/0088 ,  B01D67/0093 ,  B01D69/02 ,  B01D71/024 ,  F24F3/14 ,  B01D2325/06 ,  B01D2325/08 ,  B01D2325/38 ,  F24F2003/1435

Abstract: An evaporative cooling system includes a porous ceramic body with a plurality of dry channels and a plurality of wet channels. The plurality of dry channels are configured to inhibit transfer of water vapor into the dry channels and include a barrier layer that includes a roughened layer with a features size less than 1000 nm and a hydrophobic chemical modification disposed on the roughened layer. The plurality of wet channels are configured to allow transfer of water vapor.

公开(公告)号：US20200271395A1

公开(公告)日：2020-08-27

申请号：US16629899

申请日：2018-07-10

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Jonathan Grinham ,  Martin Bechthold ,  Salmaan Craig ,  Donald Ingber

IPC: F28F3/12 ,  F28D9/00 ,  F28F21/06

Abstract: A radiant cooling device comprises at least one fluidic layer including one or more micro-channel liquid-circuits and at least one structural layer coupled to the at least one fluidic layer. The device further includes a plurality of folds such that the device has a three-dimensional surface geometry having a plurality of inclined surfaces.

公开(公告)号：US20200231430A1

公开(公告)日：2020-07-23

申请号：US16630922

申请日：2018-07-18

Applicant: President and Fellows of Harvard College

Inventor： Saurabh Avinash Mhatre ,  Martin Bechthold ,  Allen Sayegh

IPC: B81B3/00

Abstract: A deployable Kiriform flexure includes first and second sections. The first section of the Kiriform flexure includes a plurality of curved fins arranged about a central axis. The second section of the Kiriform flexure includes a plurality of curved fins arranged about a central axis. Each fin of the second section is joined with a fin of the first section such that the first and second sections share a common central axis in a configuration that produces out-of-plane elastic buckling of the fins to actuate the Kiriform flexure from a substantially flat structure that extends substantially only in two dimensions orthogonal to the central axis to an expanded structure extending substantially in a third dimension parallel to the central axis when at least one of the first and second sections is rotated relative to the other section.

公开(公告)号：US11788800B2

公开(公告)日：2023-10-17

申请号：US16629899

申请日：2018-07-10

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Jonathan Grinham ,  Martin Bechthold ,  Salmaan Craig ,  Donald Ingber

IPC: F28F3/12 ,  F28D9/00 ,  F28F21/06

CPC classification number: F28F3/12 ,  F28D9/0025 ,  F28D9/0087 ,  F28F21/065 ,  F28F2210/02 ,  F28F2260/02

Abstract: A radiant cooling device comprises at least one fluidic layer including one or more micro-channel liquid-circuits and at least one structural layer coupled to the at least one fluidic layer. The device further includes a plurality of folds such that the device has a three-dimensional surface geometry having a plurality of inclined surfaces.

公开(公告)号：US11697585B2

公开(公告)日：2023-07-11

申请号：US16630922

申请日：2018-07-18

Applicant: President and Fellows of Harvard College

Inventor： Saurabh Avinash Mhatre ,  Martin Bechthold ,  Allen Sayegh

IPC: B81B3/00 ,  B25J15/00 ,  B29C53/36 ,  B29C53/80

CPC classification number: B81B3/0097 ,  B25J15/00 ,  B29C53/36 ,  B29C53/80 ,  B81B2203/053

Abstract: A deployable Kiriform flexure includes first and second sections. The first section of the Kiriform flexure includes a plurality of curved fins arranged about a central axis. The second section of the Kiriform flexure includes a plurality of curved fins arranged about a central axis. Each fin of the second section is joined with a fin of the first section such that the first and second sections share a common central axis in a configuration that produces out-of-plane elastic buckling of the fins to actuate the Kiriform flexure from a substantially flat structure that extends substantially only in two dimensions orthogonal to the central axis to an expanded structure extending substantially in a third dimension parallel to the central axis when at least one of the first and second sections is rotated relative to the other section.

公开(公告)号：US20150285454A1

公开(公告)日：2015-10-08

申请号：US14443170

申请日：2013-11-18

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Joanna Aizenberg ,  Allen Sayegh ,  Timur Dogan ,  Christian Ervin ,  Kiel Kenneth Moe ,  Jack Alvarenga ,  Martin Bechthold ,  Benjamin Hatton ,  Philseok Kim ,  Daekwon Park

IPC: F21S11/00 ,  G02B26/08 ,  G02B26/00

CPC classification number: F21S11/007 ,  E06B9/24 ,  E06B2009/2411 ,  E06B2009/2417 ,  E06B2009/2643 ,  G02B26/004 ,  G02B26/08 ,  Y10T29/49826

Abstract: The present application describes dynamic light control system that, can dynamically adapt to different sun positions and interior lighting levels. The dynamic light control system, includes two or more confinement panes and one or more light redirecting elements positioned therebetween. The light redirecting elements are arranged to deform the light redirecting elements in response to a change in the position of the sun. In addition, one or more fluidic-channels are formed between the light redirecting elements and the confinement panels, that can be filled with any desired fluid to provide additional dynamic changes depending on the desired characteristics.

Abstract translation: 本申请描述了动态光控系统，可以动态适应不同的太阳位置和室内照明水平。 动态光控制系统包括两个或多个限制窗格和位于其间的一个或多个光重定向元件。 光重定向元件被布置成响应于太阳位置的变化而使光重定向元件变形。 此外，在光重定向元件和限制面板之间形成一个或多个流体通道，其可以填充任何期望的流体，以根据期望的特性提供额外的动态变化。