Patents by Inventor Mark Rypalla

Mark Rypalla 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 for sealing a hood that protects a tumbling barrel
    Patent number: 5769428
    Abstract: A device for oil-impermeably sealing a stationary hood (6) off from a rotating, tumbling barrel, containing at least one stationary packing cord (7) which is forced against a race (8) by a pre-stressed and compressed gasket (9). The race is part of the barrel and rotates along with it. A cap (10) is connected to the hood (6) and demarcates in conjunction with part of the hood's end wall a region of expansion for the packing cord (7) and the gasket (9).
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: June 23, 1998
    Assignee: A. Friedr. Flender AG
    Inventor: Mark Rypalla