Patents Represented by Attorney, Agent or Law Firm Synnestvedt & Lechner I
  • 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