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Cantilever Ratchet Valve

Technology Benefits

Only requires power to change the state of the valve from open to close or vice versa. Requires no power to maintain the valve in an open or closed position. Can support much higher pressures than a bubble valve.

Technology Application

Valves are an important part of any fluid system. The cantilever ratchet valve is easily fabricated and can be used in any microfluidics application.

Detailed Technology Description

None

Supplementary Information

Patent Number: US5970998A
Application Number: US199832249A
Inventor: Talbot, Neil H. | Evans, John | Lebouitz, Kyle S.
Priority Date: 27 Feb 1998
Priority Number: US5970998A
Application Date: 27 Feb 1998
Publication Date: 26 Oct 1999
IPC Current: F15C000500 | F16K009900
US Class: 137001 | 251011 | 25112902 | 25112906
Assignee Applicant: The Regents of the University of California
Title: Microfabricated cantilever ratchet valve, and method for using same
Usefulness: Microfabricated cantilever ratchet valve, and method for using same
Summary: For pump.
Novelty: Microfabricated cantilever ratchet valve assembly for pump

Industry

Biomedical

Sub Category

Medical Imaging

Application No.

5970998

Others

Tech ID/UC Case

18434/1996-061-0

Related Cases

1996-061-0

*Abstract

Researchers at the University of California, Berkeley have developed a micromachined valve for fluidic and gas systems that requires no energy input to remain open or closed. The moving parts of the valve are cantilevered plates or cantilevers. The cantilevers are actuated by differential heating and thermal expansion.

*IP Issue Date

Oct 26, 1999

*Principal Investigator

Name: John Evans

Department:

Name: Kyle Lebouitz

Department:

Name: Neil Talbot

Department:

Country/Region

USA