Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Thermally activated trigger device










Image Number 2 for United States Patent #4762662.

A thermally activated trigger device 10 comprises a pressurized closed vessel 11 with a piston 12 slideably mounted in it to divide it into two compartments 14 and 16. A fluid such as an inert gas is contained within the compartments at substantially the same pressure. One end of one of the compartments has venting means 24, such as a normally closed pipe which vents the fluid from the compartment once the pipe becomes open by rupture or melting at an elevated temperature. The resulting pressure difference between the compartments on venting of the fluid moves the piston which is connected to an actuator means for performing a desired control or safety shut-down function. The trigger device is useful for performing many control and safety shut-down functions, particularly for rendering a nuclear space reactor subcritical upon reentry to the earth's atmosphere.








 
 
  Recently Added Patents
Bipolar junction transistor with a self-aligned emitter and base
Method for using directing cells for specific stem/progenitor cell activation and differentiation
Materials and methods for stress reduction in semiconductor wafer passivation layers
Idle stop and go system and method for controlling thereof
Treatment of cancer using the sodium salt of a benzoic acid derivative
Method for switching channels in a wireless communication network
Methods and systems providing desktop search capability to software application
  Randomly Featured Patents
Measuring vehicle front end parameters
Optical code reader and format
Electrical rotary machine
Preparation of laminated iron core of electric device
Heat exchanger for cooling tower
Safe needle methods, apparatus, and systems
Code analysis via ranged values
Apparatus for the reeling up and unreeling of flat printed products
Push-out vehicle side door
Hand gun and kit therefor