Accession Number : ADD011333

Title :   High Temperature Ultra-High Vacuum Infrared Window Seal.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Manuccia,T J ; Peele,J R ; Geosling,C E

Report Date : 15 May 1984

Pagination or Media Count : 6

Abstract : This abstract discloses a window seal apparatus capable of transmitting infrared radiaton for use under high temperature ultra-high vacuum conditions. The apparatus includes a window clamped between an annular rim of a clamp flange and an annular rim of a sealing flange. The rim of the sealing flange includes an annular sealing knob machined therein having an annular indentation in its upper surface. An annular lead gasket is located between the sealing knob and one side of the window. An annular lead gasket having roughened surfaces is positioned adjacent to the other side of the window and TEFLON gasket is positioned adjacent to the annular rim of the clamp flange. A constant force means is provided for pushing the clamp flange toward the window and the sealing flange thereby producing a seal therebetween. The window is preferably formed form alkali halide material. (Author)

Descriptors :   *Patents, *Vacuum seals, *Flanges, *Windows, *Infrared lasers, Infrared radiation, Transmittance, High temperature, Ultrahigh vacuum, Clamps, Gaskets, Tetrafluoroethylene resins, Alkali metal compounds, Halides

Subject Categories : Lasers and Masers
      Adhesives, Seals and Binders
      Couplers, Fasteners, and Joints
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE