Patents by Inventor Walter G. Drasche

Walter G. Drasche 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).

  • Patent number: 4386455
    Abstract: A piano action mechanism wherein a shaft pin for rotatably supporting a rotatable member on a flange is carried in bearings formed of bushing cloth glued to the surface of bushing holes in the rotatable member. With a pin inserted through the cylinders of bushing cloth, the assembly is dipped in water, dried, dipped in a solution of resin bonded fluorocarbon solids, again dried and the pin removed, to provide a durable and stable bearing having a low coefficient of friction and which is essentially noise-free and insensitive to changes in temperature and humidity.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: June 7, 1983
    Assignee: CBS
    Inventor: Walter G. Drasche