Patents by Inventor Robert A. Pawlik

Robert A. Pawlik 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: 10385850
    Abstract: A hydraulic pump is described comprising a rotor provided for rotation about a longitudinal axis (X-X) within a housing. The pump comprises a plurality of chambers for pumping a fluid that are provided by longitudinally extending recesses in a circumferential outer surface of the rotor. During use the recesses are moved across a circumferential inner surface of the housing, and in so doing, are moved over an inlet port in the housing to draw fluid into the chamber and then over an outlet port in the housing to discharge the fluid. The hydraulic pump further comprises a roller that is mounted in a longitudinally extending pocket of the housing. The roller is positioned after the outlet port in a direction of the rotor's rotation and is arranged to follow the outer surface of the rotor and seal against each recess as it is drawn past the roller, thereby directing fluid from the chamber into the outlet port.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: August 20, 2019
    Assignee: Goodrich Actuations Systems Limited
    Inventor: Robert A. Pawlik
  • Publication number: 20170009769
    Abstract: A hydraulic pump is described comprising a rotor provided for rotation about a longitudinal axis (X-X) within a housing. The pump comprises a plurality of chambers for pumping a fluid that are provided by longitudinally extending recesses in a circumferential outer surface of the rotor. During use the recesses are moved across a circumferential inner surface of the housing, and in so doing, are moved over an inlet port in the housing to draw fluid into the chamber and then over an outlet port in the housing to discharge the fluid. The hydraulic pump further comprises a roller that is mounted in a longitudinally extending pocket of the housing. The roller is positioned after the outlet port in a direction of the rotor's rotation and is arranged to follow the outer surface of the rotor and seal against each recess as it is drawn past the roller, thereby directing fluid from the chamber into the outlet port.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 12, 2017
    Inventor: Robert A. Pawlik
  • Publication number: 20120057894
    Abstract: A method and printing apparatus include a plurality of components and a controller operatively connected to the components. Further, a power supply is also operatively connected to the components. The controller selectively limits the operations of selected ones of the components to prevent all the components of the printing apparatus from collectively drawing from the power supply an amount of power that exceeds a power limit.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 8, 2012
    Applicant: XEROX CORPORATION
    Inventors: Tab A. Tress, Robert Pawlik, Brian James Gillis
  • Patent number: 8041279
    Abstract: An iso-thermalizing printer structure can be used to provide temperature uniformity across a width of a printer fuser roll or fuser belt. Various embodiments are contemplated, including a solid natural graphite shaft, a solid natural graphite core having a sleeve of metal such as aluminum, and other flexible and rigid structures which can comprise natural or synthetic graphite.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: October 18, 2011
    Assignee: Xerox Corporation
    Inventors: Nicholas P. Kladias, Gerald A. Domoto, Santokh Badesha, Louis Fratangelo, Patrick Finn, Robert Pawlik
  • Publication number: 20100124446
    Abstract: An iso-thermalizing printer structure can be used to provide temperature uniformity across a width of a printer fuser roll or fuser belt. Various embodiments are contemplated, including a solid natural graphite shaft, a solid natural graphite core having a sleeve of metal such as aluminum, and other flexible and rigid structures which can comprise natural or synthetic graphite.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 20, 2010
    Applicant: XEROX CORPORATION
    Inventors: Nicholas P. Kladias, Gerald A. Domoto, Santokh Badesha, Louis Fratangelo, Patrick Finn, Robert Pawlik
  • Publication number: 20070071512
    Abstract: A non-gouging sheet stripper assembly is disclosed for stripping copy sheets from a surface of a moving fusing member. The non-gouging sheet stripper assembly includes (a) at least one baffle forming part of a sheet path; (b) a finger shaft having a first end attached to the at least one baffle and a second distal end for forming a sheet directing first angle with the surface of the moving fusing member; and (c) a finger tip located at the second distal end of the finger shaft and having a contour for forming a sheet stripping second angle, that is different from the sheet directing first angle with the surface of the moving fusing member.
    Type: Application
    Filed: September 23, 2005
    Publication date: March 29, 2007
    Inventors: Robert Pawlik, Robert Tuchrelo, Billy Stojanovski, Nathan Smith
  • Publication number: 20060228639
    Abstract: Toners including a low melt wax and a carnauba wax are described. The toners include at least one binder, at least one colorant, at least one wax having a melting point of 135° C. or less, and a compatibilizer wax (e.g., carnauba wax). The low melt wax is preferably polyethylene wax. Images may be formed with the toners in an image forming process including steps of depositing the toner onto a latent image of an imaging member to form a toner image, transferring the toner image to an image receiving substrate, and fusing the toner image. During the fusing, the at least one wax and the compatibilizer wax exude from the toner, forming a stripping enhancing layer upon the toner image. Thus, fuser roll stripping performance is enhanced.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 12, 2006
    Applicant: Xerox Corporation
    Inventors: Eugene Young, David Pan, Robert Pawlik, Robert Tuchrelo, Billy Stojanovski, William Hollenbaugh, Michael Grande, Hui Chang, Mark Mang