Patents by Inventor Pavel Gdalievich Pimshtein

Pavel Gdalievich Pimshtein 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).

  • Method of manufacturing multilayer convex collared covers and bottoms for pressure vessels
    Patent number: 4101065
    Abstract: A method of manufacturing multilayer convex collared covers and bottoms for pressure vessels by assembling a pack of circular sheet blanks in the form of a truncated cone through the placement of one blank on another. The diameter of the upper smaller blank is equal to the developed length of the inner layer of the cover or bottom, the diameter of each subsequent blank being selected so that the base angle of the truncated cone would be 40.degree.-65.degree.. The blanks are then in assembled pack form welded to one another along their perimeter and stamped at a temperature of 800.degree.-1100.degree. C. Thereafter the stamped product is machined. The cover manufactured by this method has one ring at the external side and one ring at the internal side; the rings are welded at the flat side. The ring located on the internal side of the collar is provided with a circular sealing groove.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: July 18, 1978
    Inventors: Alexandr Nikolaevich Novikov, Evdokia Danilovna Kudrikova, Marat Moiseevich Shel, Pavel Gdalievich Pimshtein, Nikolai Kirillovich Globin, Boris Georgievich Ziselman, Vyacheslav Mikhailovich Potulov, Alexei Mikhailovich Maletin, deceased, by Ljubov Alexeevna Maletin, administrator, by Tatyana Alexeevna Maletina, administrator
  • Multilayer pressure vessel
    Patent number: 4010864
    Abstract: A multilayer pressure vessel comprising a cylindrical portion formed by a pipe with roll strips wound on said pipe and welded to the bottom of the vessel and to its flange for the cover. Said roll strips are wound in layers along a helical line so that each subsequent layer is wound in a direction opposite to the preceding layer at a pitch of 0.2 to 2.2 of the inside diameter of the pipe. The adjacent coils are welded to each other on a helical line only in the roll strip forming the external layer.The multilayer vessel according to the invention is considerably cheaper to manufacture than the known vessels.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: March 8, 1977
    Inventors: Pavel Gdalievich Pimshtein, Marat Moiseevich Shel, Enver Rakhmatullovich Khismatulin, Evgeny Grigorievich Borsuk, Alexandr Nikolaevich Novikov, Viktor Matveevich Makarov, Boris Grigorievich Ziselman, Alexandr Valeryanovich Kuramzhin, Viktor Grigorievich Usenko, Nikolai Kirillovich Globin, Vladimir Viktorovich Ivantsov