Patents by Inventor David C. Edelmann

David C. Edelmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device with a limit switch and trunnion
    Patent number: 7914076
    Abstract: Dental devices with cylinders, trunnions, and limit switches, and a method are provided. The dental devices include a cylinder and a trunnion having a cavity and an outer surface. A portion of the cylinder is slidably mounted within the cavity of the trunnion, and a portion of the cylinder protrudes out of the trunnion. The limit switch is coupled to the outer surface of the trunnion, with the limit switch is operable to contact the cylinder. Separation of the limit switch and the cylinder causes actuation of the limit switch, and the actuation of the limit switch inhibits a downward movement of the device. Alternatively, the limit switch may be coupled to the portion of the cylinder that protrudes out of the trunnion, with the limit switch operable to contact the trunnion. As such, separation of the limit switch and the trunnion causes actuation of the limit switch.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: March 29, 2011
    Assignee: Midmark Corporation
    Inventors: Jacob E. Broering, David C. Edelmann