Patents by Inventor Oleg Knjazev

Oleg Knjazev 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).

  • Hydraulic attachment
    Patent number: 9574962
    Abstract: The present invention relates to a hydraulic attachment comprising a hydraulic circuit, the attachment being a construction or demolition tool, in particular a hydraulic breaker, demolition shears, scrap shears, a pulverizer, a gripper, a crusher bucket or a compactor, which can be mechanically connected to a support device and hydraulically connected to the hydraulic system of the support device. In order to enable the hydraulic circuit to be opened quickly and safely within an attachment and, in particular, to make it possible to display the presence of a particular pressure level within a hydraulic attachment and to determine whether a dangerous residual pressure is present in the system, a hydraulic attachment is proposed that has a residual pressure display (40) which is connected to the hydraulic circuit of the attachment in a detachable or non-detachable manner.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: February 21, 2017
    Assignee: CONSTRUCTION TOOLS GMBH
    Inventors: Oliver Preuss, Stefan Lohmann, Colin Dirr, Oleg Knjazev, Martina Jaekel, Uwe Autschbach, Markus Mellwig
  • HYDRAULIC ATTACHMENT
    Publication number: 20150027569
    Abstract: The present invention relates to a hydraulic attachment comprising a hydraulic circuit, the attachment being a construction or demolition tool, in particular a hydraulic breaker, demolition shears, scrap shears, a pulveriser, a gripper, a crusher bucket or a compactor, which can be mechanically connected to a support device and hydraulically connected to the hydraulic system of the support device. In order to enable the hydraulic circuit to be opened quickly and safely within an attachment and, in particular, to make it possible to display the presence of a particular pressure level within a hydraulic attachment and to determine whether a dangerous residual pressure is present in the system, a hydraulic attachment is proposed that has a residual pressure display (40) which is connected to the hydraulic circuit of the attachment in a detachable or non-detachable manner.
    Type: Application
    Filed: March 19, 2013
    Publication date: January 29, 2015
    Inventors: Oliver Preuss, Stefan Lohmann, Colin Dirr, Oleg Knjazev, Martina Jaekel, Uwe Autschbach, Markus Mellwig