Patents Assigned to Microdot Incorporated
  • Patent number: 4577874
    Abstract: A two element, high and low pressure seal assembly to be used in a hydraulic or pneumatic sealing environment between two relatively movable machine parts, the seal assembly comprising a spring element, circular or rectangular in cross-section and made of a relatively soft elastomeric material, and spring element being substantially contiguously surrounded along all but a small exposed area and contained within an annular slot of a house-shaped elastomeric annular sealing member whereby an integral assembly is formed for easy installation and unitary response. The house-shaped sealing element comprises a central body from which two anti-extrusion legs radially extend. The legs are located fore and aft of the spring element within an annular peripheral groove in one machine part and are disposed perpendicular or radial to the axis of said machine part.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: March 25, 1986
    Assignee: Microdot Incorporated
    Inventor: Gordon T. Zitting
  • Patent number: 4566703
    Abstract: A two element, high and low pressure seal assembly to be used in a hydraulic or pneumatic sealing environment between two relatively movable machine parts, the seal assembly comprising a spring element, circular or rectangular in cross-section and made of a relatively soft elastomeric material, and spring element being substantially contiguously surrounded along all but a small exposed area and contained within an annular slot of a house-shaped elastomeric annular sealing member whereby an integral assembly is formed for easy installation and unitary response. The house-shaped sealing element comprises a central body from which two anti-extrusion legs radially extend. The legs are located fore and aft of the spring element within an annular peripheral groove in one machine part and are disposed perpendicular or radial to the axis of said machine part.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: January 28, 1986
    Assignee: Microdot Incorporated
    Inventor: Gordon T. Zitting