Patents by Inventor Alexandr Khaimovich Graifer

Alexandr Khaimovich Graifer 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).

  • Two-roll machine for rolling-out disc-type articles
    Patent number: 3939684
    Abstract: A machine, comprising a portal-type bed, two slide rests located on circular guides rotatably mounted about shafts fastened to the bed, rolling heads mounted each in a corresponding slide rest so that they are capable of shifting with respect to the slide rest, rolling rolls set up in each head, a slide rest turning gear and a gear for displacing the rolling heads relative to the slide rests, a carriage with a gear for clamping an article being rolled, with said carriage being mounted movably on the bed to introduce the article into the rolling zone and to withdraw it therefrom, a carriage transfer gear linked mechanically to the slide rest turning gear, and drives of the above-mentioned gears.
    Type: Grant
    Filed: July 31, 1974
    Date of Patent: February 24, 1976
    Inventors: Alexei Kirillovich Ignatiev, Nikolai Ivanovich Volodin, Mikhail Yankelevich Alshits, Evgeny Rozhdenevich Maskulia, Alexandr Khaimovich Graifer, Lia Menakhimovna Kurs, Jury Ivanovich Zelenov, Erlina Mavrikievna Rakhmanova, Nikolai Alexandrovich Cherchintsev, deceased, by Nonna Alexeevna Krasilnikova, administrator, by Alexandr Nikolaevich Cherchintsev, administrator