Patents Assigned to Edison Control Corporation
  • Patent number: 4454635
    Abstract: A holder for releasably securing a bifurcated core or the like to an electrical power line, the core having two substantially U-shaped portions which are abuttable to form a closed loop that encompasses the power line. An L-shaped boat has at least one leg with an interior configuration that is complementary to one U-shaped portion of the core to receive and hold that one portion. A gantry also having an interior configuration that is complementary to one leg of each U-shaped portion of the core receives both portions and is sufficiently long to permit one leg of each portion to be received while those portions are spaced from each other. The gantry has a guide groove on the exterior thereof for guiding a substantially L-shaped bale which is formed of resilient material and which has one leg that extends over the base of the other portion of the core and another leg which is received by and guided in the groove on the gantry.
    Type: Grant
    Filed: October 19, 1982
    Date of Patent: June 19, 1984
    Assignee: Edison Control Corporation
    Inventor: Taft B. Russell
  • Patent number: 4389643
    Abstract: A multiplexed pulse tone receiving apparatus for receiving predetermined ones of multiplexed pulse tone signals of the type comprised of pulse tone signals of different tone frequencies, each tone frequency being transmitted during a recurring pulse time slot. The receiving apparatus includes an input gate for supplying all of the multiplexed pulse tone signals to a tone detector. When a particular pulse tone signal having a predetermined frequency is received, gate control circuitry is operative to close the gate and, thereafter, to open the gate periodically only during those time slots in which this same pulse tone signal is received.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: June 21, 1983
    Assignee: Edison Control Corporation
    Inventor: Desmond W. Hill
  • Patent number: 4007340
    Abstract: Apparatus for electrically communicating between a given location and a variably spaced apart remote location, the locations being connected via electrical conductors. A variable gain amplifier is connected in series between the spaced apart locations for variably amplifying the signals communicated therebetween. A gain control signal that is a function of the separation between the locations is generated and applied to the variable gain amplifier to vary the gain of the amplifier in accordance with the distance between the locations. The gain control signal is proportional to the effective resistance of the electrical conductors extending between the locations. The gain of the amplifier is varied by varying the transconductance of a transconductance amplifier connected in the amplifier feedback circuit in accordance with the gain control signal.
    Type: Grant
    Filed: February 25, 1975
    Date of Patent: February 8, 1977
    Assignee: Edison Control Corporation
    Inventor: Taft B. Russell