Patents by Inventor Rupert M. Kosmala

Rupert M. Kosmala 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).

  • Hydraulic control device
    Patent number: 4351153
    Abstract: A hydraulic control device including an assembly of two or more pistons connected to move together within the same or different cylinders. The movement of the piston assembly causes each piston to displace corresponding amounts of hydraulic fluid from the associated cylinder, the fluid being used to operate hydraulic units, the latter being operated to the same extent irrespective of the loading thereupon.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: September 28, 1982
    Inventor: Rupert M. Kosmala