Fast shutter apparatus
Abstract
An apparatus for protecting diagnostic equipment from blast damage by rapidly interposing a shutter between the equipment and the blast area. The apparatus comprises a sensor for sensing a trigger signal associated with the blast and for converting it into a voltage pulse. The voltage pulse is received by the first end of a firing pin. A pressure chamber holds a gas under pressure. The second end of the firing pin is located inside the pressure chamber and is located above a foil member covering an orifice. When the voltage pulse reaches the second end, a point-to-plane discharge ruptures the foil, allowing the gas to enter a drive housing and quickly move a drive piston away from the foil. A drive rod connects the drive piston to a shutter and as the drive piston is moved down, the shutter moves into a closed position, protecting the equipment from debris.
- Inventors:
-
- Santa Fe, NM
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 865441
- Patent Number(s):
- 4515173
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A62 - LIFE-SAVING A62C - FIRE-FIGHTING
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- fast; shutter; apparatus; protecting; diagnostic; equipment; blast; damage; rapidly; interposing; comprises; sensor; sensing; trigger; signal; associated; converting; voltage; pulse; received; firing; pressure; chamber; holds; gas; located; inside; foil; covering; orifice; reaches; point-to-plane; discharge; ruptures; allowing; enter; drive; housing; quickly; move; piston; rod; connects; moved; moves; closed; position; debris; located inside; voltage pulse; pressure chamber; apparatus comprises; closed position; trigger signal; pulse reaches; apparatus comprise; drive rod; diagnostic equipment; /137/251/
Citation Formats
Zimmermann, Eugene L, and Kania, Don R. Fast shutter apparatus. United States: N. p., 1985.
Web.
Zimmermann, Eugene L, & Kania, Don R. Fast shutter apparatus. United States.
Zimmermann, Eugene L, and Kania, Don R. Tue .
"Fast shutter apparatus". United States. https://www.osti.gov/servlets/purl/865441.
@article{osti_865441,
title = {Fast shutter apparatus},
author = {Zimmermann, Eugene L and Kania, Don R},
abstractNote = {An apparatus for protecting diagnostic equipment from blast damage by rapidly interposing a shutter between the equipment and the blast area. The apparatus comprises a sensor for sensing a trigger signal associated with the blast and for converting it into a voltage pulse. The voltage pulse is received by the first end of a firing pin. A pressure chamber holds a gas under pressure. The second end of the firing pin is located inside the pressure chamber and is located above a foil member covering an orifice. When the voltage pulse reaches the second end, a point-to-plane discharge ruptures the foil, allowing the gas to enter a drive housing and quickly move a drive piston away from the foil. A drive rod connects the drive piston to a shutter and as the drive piston is moved down, the shutter moves into a closed position, protecting the equipment from debris.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1985},
month = {Tue Jan 01 00:00:00 EST 1985}
}