Patents by Inventor Alexandr I. Levterov

Alexandr I. Levterov 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: 4976113
    Abstract: An apparatus for indirect-evaporative gas cooling comprises a shell (1) with an inlet fitting (2) and outlet fittings (3,4). The inlet fitting (2) is for letting in a total gas stream. The outlet fitting (3) is for letting out the main gas stream and is located on the side of supplying the main gas stream to the consumer. The outlet fitting (4) is for letting the auxiliary gas stream to the atmosphere and is located on the side of the inlet fitting (2). The shell (1) accommodates a wettable capillary-porous solid (6), wherein there are provided moist ducts (7) and dry ducts (8) which intercommunicate on the side of the outlet fitting (3). This makes it possible to adjust the ratio between the surface areas of the dry and moist ducts, whereby the cooling efficiency is considerably increased.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: December 11, 1990
    Inventors: Alexandr N. Gershuni, Valery S. Maisotsenko, Alexandr A. Kaminnik, Vladilen K. Zaripov, Alexandr P. Nischik, Alexandr I. Levterov
  • Patent number: 4971245
    Abstract: In a casing of an air heater-cooler there is mounted an additional partition between the wall of the casing and a main partition to form a section for the passage of a heat transfer agent being utilized. Heat transfer elements are provided with finned inserts freely fitted on the surface of the heat transfer elements in the above section and in a section, for the passage of the flow of air being humidified, a capillary porous lining is made at the surface of the inserts.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: November 20, 1990
    Inventors: Valery S. Maisotsenko, Alexandr N. Gershuni, Vladilen K. Zaripov, Mikhail G. Semena, Alexandr I. Levterov, Mikhail O. Kolosovsky