Lamp In Shaft Patents (Class 600/179)
  • Patent number: 5644438
    Abstract: An optical device for illuminating and inspecting the interior of restricted spaces at a distance, comprising an elongated tubular housing having a distal end, a proximal sight end, and two apertures adjacent to the distal end and on the outer surface of the housing, namely, a first aperture through which a focused light beam reflected off of a first mirror is directed into a restricted space, and a second aperture through which reflected light and the image within the restricted space is received and reflected off of a second mirror through the sight end.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: July 1, 1997
    Inventor: Paul C. Pottash