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Coaxial cable output terminal safety plug device

  • US 5,011,422 A
  • Filed: 08/13/1990
  • Issued: 04/30/1991
  • Est. Priority Date: 08/13/1990
  • Status: Expired due to Fees
First Claim
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1. A coaxial cable output terminal safety plug device comprising:

  • a plug comprising a round tube having an inner flange at the front end, two opposite, longitudinal grooves on the inner wall, and a cylindrical projection at the rear end, said cylindrical projection being designed in an outer diameter slightly smaller than said round tube and having three stop strips equidistantly connected between said round tube and said cylindrical projection, a driving tube and a threaded tube concentrically received therein, said driving tube having toothed portion at its front end and two opposite, raised strips on its outer wall surface respectively releasably engaged in said two longitudinal grooves, said threaded tube having a toothed portion at its rear end and releasably engaged with the threaded portion of said driving tube and an inner thread at its front end, a resistor mounting tube extending from the rear end of said threaded tube inserted in said driving tube for holding a resistor therein, a compression spring sleeved on said resistor mounting tube and set between said threaded tube and said driving tube, said resistor mounting tube having a stepped portion in larger inner diameter, said resistor having a rear end conductor fixedly connected to an element, said element having a projecting end sleeved with a spring and stopped between said element and the front end of said cylindrical projection; and

    a driving tool comprising a handle having a front tube extending therefrom, said front tube having three longitudinal channels made at the front and three openings radially made on its periphery around a circle near the front end thereof.

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