Geometrical instruments
Patent
1984-05-14
1986-02-11
Weidenfeld, Gil
Geometrical instruments
339154R, 339177R, 339156R, 339157R, 339158, H01R 1350
Patent
active
045695679
ABSTRACT:
Computer terminal devices, especially non-intelligent devices, such as video display terminals, (sometimes called Cathode Ray Tubes), printers and others must be connected to an electrical energy source as well as a coaxial cable which links the terminal device with a cluster terminal control unit which in turn is ultimately connected with a central processor computer. These connections are provided by a combination male plug having a plug housing with a coaxial cable receptacle mounted thereon to be used to accept the coaxial connection from the terminal into the male plug and an AC power line to complete the AC power connection from the terminal to the male plug: therefore, the male plug accomplishes both the coaxial and AC power connections from the terminal to the male plug. Male connector prongs are mounted in the housing of the male plug and are used to complete the connection of coaxial and AC power supply with the female receptacle. A matching combination female receptacle mounted on a receptacle housing is complementary to and is adapted to receive the male connector. The combination female receptacle is provided on each desk or work area where it is coupled to a source of power as well as to a coaxial cable providing a communications line to its associated computer, through a cluster terminal control unit to a communications controller or directly to the host processor.
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IBM Tech. Disclosure Bulletin, "Wall Mounted Plug in Power Pack", vol. 20, #3, Aug. 1977, p. 1059.
Pirlot David L.
Weidenfeld Gil
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