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
- 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}
}