Patents by Inventor Oleg Ivanovich Grechishkin

Oleg Ivanovich Grechishkin 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).

  • Abrasive blasting device
    Patent number: 7101266
    Abstract: An abrasive blasting device provides for both “cold” and “hot” processing. It includes a nozzle gun, an abrasive vessel, a batcher, an ejection-type mixer, a fuel tank, and a receiver. The nozzle gun includes a combustion chamber (108), a tubular element (114) for air/abrasive mixture feeding, a nozzle (128), swirlers of the fuel blend (122) and of gaseous oxidant (124). The combustion chamber (108) at a perforated wall area (110) has variable cross-section. The batcher includes independent regulation of a seat position with respect to a position of a slide-valve rod, and abrasive loosening and blow purging.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: September 5, 2006
    Inventor: Oleg Ivanovich Grechishkin