Patents by Inventor Lance H. Daby

Lance H. Daby 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).

  • Proportional pumping apparatus
    Patent number: 4312463
    Abstract: Apparatus for delivering highly viscous liquids from a pair of containers for mixing together, including a metering pump mounted on each of the containers, an air motor connected to one of the metering pumps, a master hydraulic cylinder connected to the air motor and a slave hydraulic cylinder connected to the other metering pump such that as the air motor drives one of the metering pumps in a stroke, the hydraulic cylinders move the other metering pump in its stroke.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: January 26, 1982
    Inventor: Lance H. Daby