Patents by Inventor Peter Schradi

Peter Schradi 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: 7305913
    Abstract: An hydraulic unit includes a hydraulic cylinder, and a piston retained in the hydraulic cylinder, wherein the piston can be moved from a first end position located at one end of the hydraulic cylinder to a second end position located at the opposite other end position of the hydraulic cylinder. The hydraulic cylinder is hydraulically connected with a delay unit which is equipped with an auxiliary cylinder containing an auxiliary piston, with which a movement of the piston can be delayed in a middle section located between the first and the second end position. The auxiliary cylinder has a first and a second opening for incoming and outgoing hydraulic oil. In order to precisely set an attenuation point, a throttle valve provided on the auxiliary cylinder or piston be connected in the flow path.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: December 11, 2007
    Assignee: Schuler Automation GmbH & Co. KG
    Inventor: Peter Schradi
  • Publication number: 20060032368
    Abstract: The invention relates to a hydraulic unit with a piston (2) contained in a hydraulic cylinder (1), wherein the piston (2) can be moved from a first end position (E1) located at one end of the hydraulic cylinder (1) to a second end position (E2) located at the opposite other end position of the hydraulic cylinder (1), wherein the hydraulic cylinder (1) is hydraulically connected with a delay unit (8) which is equipped with an auxiliary cylinder (9) containing an auxiliary piston (10), with which a movement of the piston (2) can be delayed in a middle section located between the first (E1) and the second end position (E2), and wherein the auxiliary cylinder (9) has a first (16) and a second opening (17) for incoming and outgoing hydraulic oil. To be able to precisely set an attenuation point, the invention suggests that a shutoff valve (10a, 14, 20) provided on the auxiliary cylinder (9) or piston (10) be connected in the flow path.
    Type: Application
    Filed: August 12, 2005
    Publication date: February 16, 2006
    Applicant: SCHULER AUTOMATION GMBH & CO. KG
    Inventor: Peter Schradi