The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 2004
Filed:
Jul. 10, 2002
Robin Hui Liu, Chandler, AZ (US);
Justin J. Bonanno, Gilbert, AZ (US);
Piotr Grodzinski, Chandler, AZ (US);
Randall Stevens, Phoenix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A fluidic valve ( ) switches a state of flow of a fluid in a fluid communication channel of a fluid guiding structure ( ). Heating a bi-phase valve element ( ) causes a change a state of the bi-phase valve element from a high viscosity state to a low viscosity state. A bi-phase valve element that clogs the fluid communication channel can be pushed into an expanded portion ( ) of the fluid communication channel by an application of pressure to the fluid while the bi-phase valve element is in the low viscosity state, unclogging the fluid communication channel. A bi-phase valve element can be pushed from a valve element source chamber ( ) into the fluid communication channel by using a pumped fluid entering the source chamber at a pump inlet ( ) while the bi-phase valve element is in the low viscosity state, clogging the fluid communication channel.