Patents by Inventor Melanie Jayne Walsh

Melanie Jayne Walsh 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).

  • Head gasket with a check valve
    Patent number: 6305420
    Abstract: A head gasket which acts, when clamped between a head and a cylinder block of an internal combustion engine, to form a seal around at least one lubricant or hydraulic fluid passage which extends between the head and the block. The gasket also comprises a non-return valve which extends across said passage and allows flow of liquid in said passage towards the head but prevents flow of liquid in said passage towards the block.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: October 23, 2001
    Assignee: Federal-Mogul Technology Limited
    Inventors: Alan William Atkinson, Melanie Jayne Walsh