Variable orifice using an iris shutter

Patent · Sun Jan 01 00:00:00 EST 1978

OSTI ID:863108

Beeman, Raymond ^[1]; Brajkovich, Steven J ^[2]

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1. El Cerrito, CA
2. Fremont, CA

A variable orifice forming mechanism utilizing an iris shutter arrangement adapted to control gas flow, conductance in vacuum systems, as a heat shield for furnace windows, as a beam shutter in sputtering operations, and in any other application requiring periodic or continuously-variable control of material, gas, or fluid flow.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4094492
• OSTI ID: 863108
• Country of Publication: United States
• Language: English

Related Subjects

variable
orifice
iris
shutter
forming
mechanism
utilizing
arrangement
adapted
control
gas
flow
conductance
vacuum
systems
heat
shield
furnace
windows
beam
sputtering
operations
application
requiring
periodic
continuously-variable
material
fluid
vacuum systems
control gas
gas flow
fluid flow
heat shield
variable orifice
shutter arrangement
mechanism utilizing
variable control
iris shutter
/251/138/