Patents by Inventor Peter Hanak

Peter Hanak 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).

  • Swab hoist use thereof in conveying crude oil and natural gas
    Patent number: 4454912
    Abstract: The invention relates to a swab hoist for use in conveying crude oil and natural gas having a cable drum and a driving motor for the cable drum.It is the object of the invention to provide a swab hoist of improved properties.This is achieved according to the invention by providing a hydraulic drive for the transmission of force from the driving motor to the cable drum. The hydraulic drive consists of a hydraulic pump driven by the driving motor, a hydraulic motor connected to the cable drum and a control means, in particular a pressure-reducing means, all connected to one another by means of pressure lines.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: June 19, 1984
    Assignee: OMV Aktiengesellschaft
    Inventors: Johann L. Frohlich, Josef Gamperl, Peter Hanak, Gerhard Wawra