Patents by Inventor Algirdas J. Dragunevicius

Algirdas J. Dragunevicius has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4593159
    Abstract: A base-plate for a telephone set base has a bottom web or panel, with a wall extending upward around the panel for the majority of its periphery. At one side an inclined web extends inward and upward and a wall extends round the periphery of the web, with an aperture formed in the bottom panel coincident with the inclined web. The inclined web, and the wall around the web define a lower recess and an upper recess. A further recess in the bottom panel, closed on three sides and top and open on the fourth side provides access for modular plugs of the handset cord and line cord. Enclosed channels extend from the upper end and lower end to the further channel for passage of line and handset cords. A further enclosed channel extends from the lower recess to the channel from the upper end for alternate positioning of a short line cord in a wall mounting mode. Mounting means for a circuit board, hook switch and piezoceramic transducer are provided.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: June 3, 1986
    Assignee: Northern Telecom Limited
    Inventors: Eugene W. Charchanko, Gerd Kuhfus, Algirdas J. Dragunevicius
  • Patent number: 4556763
    Abstract: A line switch assembly for a telephone switch has a unitary switch having a base within which are cantilevered contacts and a cap over the base, the cap having cam formations which actuate the contacts on reciprocal movement of the cap. An actuating member rests on the cap and has an extension with a rib which extends up into a recess in the top housing of the telephone set, the recess being one which accepts one of the handset transducers. Pressure on the rib pivots the actuating member and depresses the cap. The switch is a preassembled unit and is normally mounted on a circuit board carrying other components. A reduced number of components and quicker and easier assembly give a relatively high cost reduction.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: December 3, 1985
    Assignee: Northern Telecom Limited
    Inventors: Algirdas J. Dragunevicius, Gerd Kuhfus, Charles R. S. Walker
  • Patent number: 4188513
    Abstract: A telephone transmitter sub-assembly has an electret clamped between a pair of printed circuit boards. The electret conducting surface and printed circuit patterns on the boards have an overlapping arrangement at a planar junction. The arrangement connects a capacitor, of which the electret forms part, into an amplifying circuit.
    Type: Grant
    Filed: November 3, 1978
    Date of Patent: February 12, 1980
    Assignee: Northern Telecom Limited
    Inventors: Ronald J. Morrell, Beverley W. Gumb, Algirdas J. Dragunevicius
  • Patent number: 4163874
    Abstract: A base plate for a telephone set is molded of plastic instead of being a metal stamping and can be made of recycled scrap plastic material. The base plate is provided with a plurality of positions for mounting telephone set parts with each position having an arrangement of projections and one or more deflectable members whereby the telephone items can be mounted by sliding and downward movement to clip in, and with one or more of the positions also having alternative means for mounting items whereby alternate forms of an item can be interchangeably mounted.
    Type: Grant
    Filed: May 11, 1978
    Date of Patent: August 7, 1979
    Assignee: Northern Telecom Limited
    Inventors: George V. Lenaerts, Algirdas J. Dragunevicius