Patents by Inventor Janusz Wlodarczyk

Janusz Wlodarczyk 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: 4788408
    Abstract: An arc plasma generating system includes components for adjusting spacing between the cathode and the anode. A piston affixed to the cathode is slidingly positioned in a cylinder partitioning therein a first chamber and a second chamber. The first chamber is receptive of discharged cooling fluid at reduced pressure. A first valve selectively infuses pressurized control fluid into the second chamber such as to move the piston against the reduced pressure and thereby move the cathode axially in a first direction. A second valve selectively discharges the control fluid from the second chamber such that the reduced pressure in the first chamber moves the piston opposite the first direction. Telescoping tubing affixed between the piston and the end wall of the cylinder is located within the cylinder and conveys cooling fluid to the cathode. A flexible electrical cable connected between the cathode and a source of arc current is located within the cylinder member such as to be cooled by fluid therein.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: November 29, 1988
    Assignee: The Perkin-Elmer Corporation
    Inventors: Janusz Wlodarczyk, Henry C. Thompson, Thomas F. Bernecki, Henry A. Budke
  • Patent number: 4780591
    Abstract: A plasma generating system comprises a plasma gun including a hollow cylindrical anode member, a hollow cylindrical intermediate member electrically isolated from and juxtaposed coaxially with the anode member to form a plasma-forming gas passage through the intermediate member and the anode member, and an axially movable cathode member. The intermediate member comprises tubular segments separated by resilient insulating spacing rings held in compression. Arc radiation is blocked from the spacer rings by meanders in the inter-segment slots and further by ceramic barrier rings. An electric motor or pneumatic piston responsive to a measurement of arc voltage continually adjusts the axial position of the cathode tip relative to the anode nozzle so as to maintain a predetermined arc voltage.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: October 25, 1988
    Assignee: The Perkin-Elmer Corporation
    Inventors: Thomas F. Bernecki, Kevin J. Varley, William P. Rusch, Janusz Wlodarczyk, John F. Klein