Power plants – Fluid within expansible chamber heated or cooled – Having means within the working chamber to effect the...
Reexamination Certificate
2000-12-22
2002-12-31
Nguyen, Hoang (Department: 3748)
Power plants
Fluid within expansible chamber heated or cooled
Having means within the working chamber to effect the...
C060S515000, C060S530000
Reexamination Certificate
active
06499297
ABSTRACT:
BACKGROUND
Micromachining is the science of forming various features on silicon structures. These features can be formed to relatively small sizes. Strength of the eventual features is a very important issue.
Thermopneumatic actuation can allow micro-sized fluid handling devices.
SUMMARY
The present disclosure describes using Parylene membranes along with micromachining of structure form various features. Another embodiment uses a composite of Parylene and silicone rubber to obtain certain advantages of each of the materials.
One embodiment teaches using robust Parylene membranes, formed using silicon micromachining technology, to form several fluid handling devices. These include a thermopneumatic actuator, valve, and pump, all of which operate using a heater in a thermopneumatic liquid. These devices have small size, high performance, low cost, and low power.
Another embodiment teaches using a composite of Parylene and silicone rubber.
REFERENCES:
patent: 4824073 (1989-04-01), Zdeblick
patent: 5176358 (1993-01-01), Bonne et al.
patent: 5177579 (1993-01-01), Jerman
patent: 5367878 (1994-11-01), Muntz et al.
patent: 6345502 (2002-02-01), Tai et al.
Grosjean Charles
Tai Yu-Chong
Wang Xuan-Qi
Yang Xing
California Institute of Technology
Fish & Richardson P.C.
Nguyen Hoang
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