Patents by Inventor Alexander S. Petrov

Alexander S. Petrov 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: 4420964
    Abstract: A press and press method wherein an article is shaped by displacing a tool thereagainst in a plurality of time-spaced main strokes separated by intervals in which the energy for the main strokes is stored in a force-storing element such as a rod under tension and during these intervals, the tool continues to be advanced against the article by an auxiliary motor. The apparatus utilizes a lever pivotally connected to a support, to the force-storing element and to the tool. The main drive motor acts on this lever.
    Type: Grant
    Filed: April 28, 1981
    Date of Patent: December 20, 1983
    Assignee: V M E I "Lenin"
    Inventors: Alexander S. Petrov, Mihail S. Konstantinov
  • Patent number: 4343175
    Abstract: A power press in which low inertia motors with speed control circuitry are connected to a cam which acts upon a lever or cam follower which, in turn, cooperates with a force-storing element which has a spring action and is coupled, e.g. by the same lever, to the tool of the press. Accordingly, in the rotation of the cam, the force-storing means stores potential energy which is transformed into kinetic energy of the ram in another region of the cam at which part of the energy can be delivered to the low inertia motors. Hence the speed control of the motor will, in part, regulate the rate at which the stored force is delivered to the workpiece.
    Type: Grant
    Filed: April 15, 1981
    Date of Patent: August 10, 1982
    Assignee: Vmei "Lenin" - Centar Po Robotika
    Inventor: Alexander S. Petrov