Patents Assigned to Cohu, Inc.
  • Camera housing optical sealing method and device
    Patent number: 4113137
    Abstract: A new and improved device and method for hermetically sealing a lens window to a camera housing, which permits removal of the window from a pressurized housing without danger to the technician due to rapid or explosive decompression. The device comprises a unique combination of an O-ring seal and a square or rectangular cross-section face seal ring with two snap-rings in such a manner that removal of the first snap-ring causes controlled decompression of the housing, while the lens window is retained by the second snap-ring.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: September 12, 1978
    Assignee: Cohu, Inc.
    Inventor: Walter Jamison Wind