Patents Assigned to Andrew J. Pratscher
  • Gas chamber animal trap
    Patent number: 4741121
    Abstract: A compact industrial animal trap is provided with a gas injector to effectively, continually and rapidly exterminate rodents and other animal pests with carbon dioxide or other gases in a reliable, efficient and safe manner. The animal trap has a disposal chamber and an elongated entrance chamber. In the preferred form, the entrance chamber has a vertically pivotable floor to lift and carry the animal from the entrance chamber into the disposal chamber.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: May 3, 1988
    Assignee: Andrew J. Pratscher
    Inventors: Andrew J. Pratscher, Philip J. Andres, IV