Patents by Inventor Efim S. Gorbulev

Efim S. Gorbulev 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).

  • Piston ring assembly with tangential expander
    Patent number: 4408770
    Abstract: A compound oil ring comprises flat rings and a tangential expander provided therebetween. The tangential expander comprises an annular integrally bent serpentine spring having vertically extending webs and horizontally extending flanges terminating in vertically extending bearing shoulders. Each vertically extending flange is bent so as to form at least one bend extending into the interior of the compound oil ring.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: October 11, 1983
    Inventors: Rusaam S. Nemets, Vladimir G. Kislov, Efim S. Gorbulev, Ivan A. Koval, Boris S. Eremenko, Felix A. Brainman, Jury M. Kontsov, Anatoly V. Adamovich, Lev A. Burov, Viktor P. Moldavanov
  • Tangential expander for oil control piston rings
    Patent number: 4175758
    Abstract: The joint of the expander is formed by tooth-like portions of the side flanges of a U-shaped spring, bent inward and coiled into a ring.The device comprises a measuring gear which reels off the sinuous profiled spring from a spiral.The gear has a radial slot receiving the reciprocating cutters acting in conjunction with bending punches which bend the cut-off tooth-like ends of the spring, locked into a joint.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: November 27, 1979
    Inventors: Anatoly V. Adamovich, Lev A. Burov, Rusaam S. Nemets, Efim S. Gorbulev, Boris S. Eremenko, Felix A. Brainman, Viktor P. Moldavanov, Jury M. Kontsov, Viktor F. Axenov, Matvei I. Averbukh
  • Method of manufacturing tangential expanders for oil control piston rings
    Patent number: 4173878
    Abstract: According to the claimed method a round wire is first flattened and then formed into a serpentine flat spring. The segment portions of this spring are bent up in the form of thrust shoulders and calibrated for height. The shaped spring is coiled into a spiral on a mandrel, compressed and heat-treated before cutting it into individual tangential expanders.
    Type: Grant
    Filed: January 17, 1978
    Date of Patent: November 13, 1979
    Inventors: Rusaam S. Nemets, Efim S. Gorbulev, Veniamin A. Parygin, Jury M. Kontsov, Viktor P. Moldavanov, Mark A. Shaforenko, Alexei K. Ignatiev, Gennady S. Zaikovsky, Mikhail I. Volnyakov
  • Apparatus for making serpentiform springs
    Patent number: 4136718
    Abstract: In an apparatus, synchronous rotation of a driven drum supporting mandrel pins and of two plates rotating in the same direction is effected. The plates support bending rods to bend rod stock on either side about successively arranged pins.The portion of the stock being bent and the preceding bent portion are securely urged against respective pins by means of a pair of spring-loaded shoes.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: January 30, 1979
    Inventors: Alexei K. Ignatiev, Rusaam S. Nemets, Efim S. Gorbulev, Elena N. Stolyarova, Jury M. Kontsov