Patents by Inventor Zdenek Riha

Zdenek Riha 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: 11712782
    Abstract: An abrasive head with clean gas infeed for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles to extend the tool lifetime by eliminating damage to the liquid jet's aperture by the abrasive, avoid degrading the abrasive inside the tool and increase the cutting power and flow efficiency.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: August 1, 2023
    Inventors: Jiri Mestanek, Zdenek Riha
  • Patent number: 11628540
    Abstract: An abrasive head with inserted jet for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles to extend the tool lifetime by eliminating damage to the liquid jet's aperture by the abrasive, avoid degrading the abrasive inside the tool and increase the cutting power and flow efficiency.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: April 18, 2023
    Inventors: Jiri Mestanek, Zdenek Riha
  • Patent number: 11396084
    Abstract: Multi-jet abrasive head for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles with a uniform velocity and density profile allowing the cutting power to be increased with more efficient cutting beam usage.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: July 26, 2022
    Inventors: Jiri Mestanek, Zdenek Riha
  • Publication number: 20190366508
    Abstract: An abrasive head with inserted jet for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles to extend the tool lifetime by eliminating damage to the liquid jet's aperture by the abrasive, avoid degrading the abrasive inside the tool and increase the cutting power and flow efficiency.
    Type: Application
    Filed: May 13, 2019
    Publication date: December 5, 2019
    Applicants: PTV, spol. s r. o., Institute of Geonics of the CAS
    Inventors: Jiri Mestanek, Zdenek Riha
  • Publication number: 20190366509
    Abstract: An abrasive head with clean gas infeed for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles to extend the tool lifetime by eliminating damage to the liquid jet's aperture by the abrasive, avoid degrading the abrasive inside the tool and increase the cutting power and flow efficiency.
    Type: Application
    Filed: May 20, 2019
    Publication date: December 5, 2019
    Applicants: PTV, spol. s r. o., Institute of Geonics of the CAS
    Inventors: Jiri Mestanek, Zdenek Riha
  • Publication number: 20190283213
    Abstract: Multi-jet abrasive head for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles with a uniform velocity and density profile allowing the cutting power to be increased with more efficient cutting beam usage.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 19, 2019
    Applicants: PTV, spol. s.r.o., Institute of Geonics of the CAS
    Inventors: Jiri Mestanek, Zdenek Riha
  • Publication number: 20160296949
    Abstract: A device and a hydrodynamic nozzle for a generation of a high pressure pulsating jet of a liquid without cavitation and saturated vapour The device for the adjustment of surfaces and dividing of materials with the hydrodynamic nozzle for the generation of high pressure pulsating jet of liquid without cavitation and presence of saturated vapours. The device for adjustment of surfaces and dividing of materials with the hydrodynamic nozzle generates pulsating jet, which is able to perform a very effective cleaning or removing surfaces of materials or dividing the given bodies of materials. The device could be composed of the bearing body (2) and the body of nozzle (1), which are mutually sealed by the sealing (3).
    Type: Application
    Filed: November 11, 2014
    Publication date: October 13, 2016
    Inventor: Zdenek RIHA
  • Publication number: 20040050980
    Abstract: Fluidic nozzle for emitting pressurized liquid includes a body forming mutually interconnected chambers including a liquid inlet chamber, an oscillatory chamber, and a liquid outlet chamber together defining a longitudinal axis of the nozzle. The oscillatory chamber includes a vortex section for inducing swirling of the liquid, A stream deflector is disposed in the vortex section upstream of an entrance to the outlet chamber, the stream deflector extending in a direction laterally of the axis from one wall of the vortex section to an opposite wall thereof.
    Type: Application
    Filed: June 25, 2003
    Publication date: March 18, 2004
    Applicant: HYDROSYSTEM project a.s.
    Inventors: Zdenek Riha, Frantisek Pochyly