Rotary Release Patents (Class 116/89)
  • Use of polymeric films for delivery of nematode eggs and ecological evaluations
    Patent number: 5739005
    Abstract: Provided is a polymer film useful in the delivery of biological agents, as well as a method for making such a polymer film. The polymer film comprises a transparent, gelled water-soluble polymer supported by a mesh. The polymer film also contains a biological agent. The polymer film can be made by preparing an aqueous solution of a gellable water-soluble polymer and the biological agent, dipping the meshed support into the aqueous solution to create a liquid film over the support, and then gelling the polymer.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: April 14, 1998
    Assignee: Auburn University a Public University of the State of Alabama
    Inventors: Rodrigo Rodriguez-Kabana, Nancy Kokalis-Burelle
  • Door control device with alarm switch
    Patent number: 4721946
    Abstract: An apparatus for monitoring the condition of a door which is biased toward a closed position by a closer arm connected to and biased by a door control device including a switch responsive to the position of the closer arm and signaling means connected to the switch. The switch is operable to activate the signaling means and establish a signal in response to the closer arm being disconnected from the door control device and when the door is moved from its fully closed position.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: January 26, 1988
    Inventor: Richard L. Zunkel
  • Window-door alarm
    Patent number: 4418638
    Abstract: An alarm device which explodes a loud sounding firing cap in case a door or window is started to be opened; the device including a pop gun mechanism wherein a released compression spring inside a barrel strikes an explosion cap inserted in an end of the barrel; the cocked spring mechanism being released by a push of a bar mounted on a movable window sash or door.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: December 6, 1983
    Inventors: Michel Lesly, George Spector