Resources Contact Us Home
Pressure sensitive flow control valve

Image Number 7 for United States Patent #5878743.

A pressure sensitive valve for a positive pressure airway system which allows bi-directional flow with low resistance. When positive pressure from the air generator of the positive pressure airway system is lost, a spring actuated disc moves away from its compressed position to block the outlet of the air generator. By blocking the outlet of the air generator, the path of entry for contaminants is significantly restricted in so doing, an alternate, low resistance path to atmosphere is exposed to allow contaminants to escape.

  Recently Added Patents
Battery structures and related methods
Additives for oil recovery from reservoirs
Methods, systems, and computer-readable media for providing an event alert
Method for providing information of access point selection
Opioid-ketamine and norketamine codrug combinations for pain management
Elegant solutions for fingerprint image enhancement
Fusing apparatus and image forming apparatus provided with the same, and heating apparatus
  Randomly Featured Patents
Complementary transistors having respective gates formed from a metal and a corresponding metal-silicide
Method of making a test device
Fishing net hanging jig
Time-resolved optoacoustic method and system for noninvasive monitoring of glucose
Method and apparatus for distributing products to vehicle occupants
Measuring instrument
Drive device for a vehicle
Exposure apparatus and method
Movable access points and repeaters for minimizing coverage and capacity constraints in a wireless communications network and a method for using the same
Transducer for inducing seismic signals into an elastic medium