Metal fusion bonding – Process – Metal to nonmetal with separate metallic filler
Patent
1997-12-19
1999-11-30
Heinrich, Samuel M.
Metal fusion bonding
Process
Metal to nonmetal with separate metallic filler
2281246, 228189, B23K 3102
Patent
active
059927283
ABSTRACT:
An endoscope contains no adhesives, epoxies, or other organic materials. The endoscope includes a set of lenses held in position by cylindrical spacers. A pair of windows seal the ends of the endoscope, and prevent the lenses and spacers from falling out. The windows are brazed to the endoscope. Due to the use of brazing, no adhesives are needed to hold the lenses or windows in place. Thus, one can sterilize the endoscope in the high temperature environment of an autoclave, without risking damage to the optical components. The brazing produces a hermetic seal which enables the endoscope to function properly in an environment of high temperature or high pressure, or in chemically abusive environments.
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Websters 9.sup.th New Collegiate Dictionary, p. 176.
Atkinson Guy M.
Kelly Eugene J.
Pollack Michael J.
Heinrich Samuel M.
Three E Laboratories, Inc.
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