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Title: 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:
;
Issue Date:
OSTI Identifier:
6015346
Application Number:
ON: TI85006501
Assignee:
Dept. of Energy EDB-85-038953
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; EQUIPMENT PROTECTION DEVICES; SHUTTERS; DESIGN; FOILS; PISTONS; TRANSDUCERS; TRIGGER CIRCUITS; ELECTRONIC CIRCUITS; PULSE CIRCUITS; 420202* - Engineering- Protective Structures & Equipment

Citation Formats

Zimmermann, E.L., and Kania, D.R. Fast shutter apparatus. United States: N. p., 1984. Web.
Zimmermann, E.L., & Kania, D.R. Fast shutter apparatus. United States.
Zimmermann, E.L., and Kania, D.R. Wed . "Fast shutter apparatus". United States.
@article{osti_6015346,
title = {Fast shutter apparatus},
author = {Zimmermann, E.L. and Kania, D.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 = {1984},
month = {6}
}