Patents by Inventor Boris Vladimirovich Nazarov

Boris Vladimirovich Nazarov 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).

  • Air-operated drilling machine or rotary-percussive action
    Patent number: 3978931
    Abstract: The machine has a braking arrangement for retaining it against rearward motion and rotation and includes a housing accommodating therein a hammer reciprocable in operation of the machine and adapted to strike the head part of the housing, the latter having a drilling tool rigidly connected thereto. The tail part of the housing supports a sleeve rigidly connected with the braking arrangement. The housing and the sleeve are connected so that the housing is rotatable and axially displaceable relative to the sleeve. The drilling tool rotating mechanism is positioned intermediate the sleeve and the housing and includes a helicoidal couple made up by a helicoidally threaded rod rigidly secured to the housing and a nut, the mechanism further including a freewheeling clutch of which the movable cage is made integral with the nut.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: September 7, 1976
    Inventors: Boris Vasilievich Sudnishnikov, Veniamin Viktorovich Kamensky, Eduard Petrovich Varnello, Sergei Konstantinovich Tupitsin, Boris Vladimirovich Nazarov