Resources Contact Us Home
Riot control weapon

Image Number 2 for United States Patent #4137893.

A riot control weapon using air pressure to eject inexpensive projectiles om its muzzle. Its velocity, range and impact is adjustable by an air regulator between the compressed air supply and the trigger actuated air valve to suit the needs of the situation. The weapon is a rapid fire rifle, wherein the regulator is adapted to provide instantaneous change to the pressure in the barrel of the rifle while the projectiles are being ejected therefrom, thus changing the range of fire of the rifle.

  Recently Added Patents
UV liquid treatment system
Agent for expelling parasites in humans, animals or birds
Positioning vehicles to improve quality of observations at intersections
Catalyst compositions for hydroformylation reaction and hydroformylation process using the same
Porous objects having immobilized encapsulated biomolecules
Method of controlling semiconductor device, signal processing method, semiconductor device, and electronic apparatus
Vehicle, toy, and/or replicas thereof
  Randomly Featured Patents
Thermally conductive grease and methods and devices in which said grease is used
Semiconductor device and manufacturing method using an ink-jet method of the same
Attribute entropy as a signal in object normalization
Laminate microstructure device and method for making same
System for converting at least one electrical input direct current into an electrical polyphase output alternating current
Machine recognition of handwritten character strings such as postal zip codes or dollar amount on bank checks
Silver halide color photographic light sensitive material
Putter hand grip
Laboratory work station with controllable environment
Guerbet meadowfoam esters