Patents by Inventor Mark Heitfeld

Mark Heitfeld 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: 11285514
    Abstract: An apparatus, system and method for fastening a screen has a screen with apertures sized to separate a first sized material from a second sized material. A box is positioned beneath the screen in a bracket extending along the screen. A protrusion extends from the box toward the screen. A triangular tensioning element secured along a length of the screen moves in a direction substantially perpendicular to the length of the screen in response to contact with the protrusion to seal the screen against the bracket and tension the screen.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: March 29, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Mark A. Heitfeld, Christopher T. Meranda
  • Publication number: 20210268546
    Abstract: An apparatus, system and method for fastening a screen has a screen with apertures sized to separate a first sized material from a second sized material. A box is positioned beneath the screen in a bracket extending along the screen. A protrusion extends from the box toward the screen. A triangular tensioning element secured along a length of the screen moves in a direction substantially perpendicular to the length of the screen in response to contact with the protrusion to seal the screen against the bracket and tension the screen.
    Type: Application
    Filed: May 3, 2016
    Publication date: September 2, 2021
    Applicant: M-I LLC
    Inventors: Mark A. Heitfeld, Christopher T. Meranda
  • Patent number: 10220414
    Abstract: Apparatus having a drivebox including a motor, a drive connected to the motor, a suitable number of adjustment brackets, and a set of adjustment gussets. A basket is connected to the drivebox through the adjustment brackets and adjustment gussets, and drivebox imparts a sifting motion onto the basket. The basket has a housing, an infeed end, an discharge end, at least one screening deck contained therein, and positioned at a screening deck angle. The apparatus is of a modular design which enables changing the screening deck angle while installed in a facility and without substantial disassembly.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: March 5, 2019
    Assignee: M-I L.L.C.
    Inventor: Mark Heitfeld
  • Patent number: 10086409
    Abstract: A system and a method tension a screen having a generally rectangular shape defined by a length and a width. The screen has a profile with a shape extending the length of the screen. A rod has a channel configured to receive the shape of the profile of the screen therein. The rod has a plurality of segmented portions such that a first segmented portion of the plurality of segmented portions is separable from a second segmented portion of the plurality of segmented portions. The screen is positioned on a frame. The rod is positioned parallel to the length of the frame on two sides. A clamping mechanism tensions the screen with respect to the frame.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: October 2, 2018
    Assignee: M-I L.L.C.
    Inventor: Mark Heitfeld
  • Patent number: 10065214
    Abstract: An apparatus, a system and a method for reinforcing a screen has a screen rod assembly extending from a first end to a second end. The screen rod assembly encloses an interior. A spring-loaded plunger is located in the interior and adjusts the length of the screen rod assembly. A ball joint is on the screen rod and defines sections of the screen rod assembly that bend around the ball joint to reduce the length of the screen rod. A sleeve extends from a screen with segments separated by a fold line extending along a width of the screen. The sleeve receives the screen rod assembly to reinforce the screen. In an embodiment, a screen pinch assembly is defined where the sleeve engages a retention clasp of a screen tensioning system that receives the screen. The screen pinch assembly holds the screen in place.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: September 4, 2018
    Assignee: M-I L.L.C.
    Inventors: Michael A. Timmerman, Robert A. Lunnemann, Mark Heitfeld
  • Publication number: 20170282216
    Abstract: An apparatus, a system and a method for reinforcing a screen has a screen rod assembly extending from a first end to a second end. The screen rod assembly encloses an interior. A spring-loaded plunger is located in the interior and adjusts the length of the screen rod assembly. A ball joint is on the screen rod and defines sections of the screen rod assembly that bend around the ball joint to reduce the length of the screen rod. A sleeve extends from a screen with segments separated by a fold line extending along a width of the screen. The sleeve receives the screen rod assembly to reinforce the screen. In an embodiment, a screen pinch assembly is defined where the sleeve engages a retention clasp of a screen tensioning system that receives the screen. The screen pinch assembly holds the screen in place.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Inventors: Michael A. Timmerman, Robert A. Lunnemann, Mark Heitfeld
  • Publication number: 20170100747
    Abstract: A system and a method tension a screen having a generally rectangular shape defined by a length and a width. The screen has a profile with a shape extending the length of the screen. A rod has a channel configured to receive the shape of the profile of the screen therein. The rod has a plurality of segmented portions such that a first segmented portion of the plurality of segmented portions is separable from a second segmented portion of the plurality of segmented portions. The screen is positioned on a frame. The rod is positioned parallel to the length of the frame on two sides. A clamping mechanism tensions the screen with respect to the frame.
    Type: Application
    Filed: June 3, 2015
    Publication date: April 13, 2017
    Inventor: Mark Heitfeld
  • Publication number: 20160175887
    Abstract: Apparatus having a drivebox including a motor, a drive connected to the motor, a suitable number of adjustment brackets, and a set of adjustment gussets. A basket is connected to the drivebox through the adjustment brackets and adjustment gussets, and drivebox imparts a sifting motion onto the basket. The basket has a housing, an infeed end, an discharge end, at least one screening deck contained therein, and positioned at a screening deck angle. The apparatus is of a modular design which enables changing the screening deck angle while installed in a facility and without substantial disassembly.
    Type: Application
    Filed: June 23, 2015
    Publication date: June 23, 2016
    Inventor: Mark Heitfeld
  • Patent number: 9216437
    Abstract: Enhanced action cleaning elements enable increased deblinding efficiency of gyratory sifters. The enhanced action cleaning elements increase the collisions between the elements and the screens of the gyratory sifters to enhance deblinding the screens of the gyratory sifter.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: December 22, 2015
    Assignee: M-I, LLC
    Inventor: Mark Heitfeld
  • Publication number: 20110186484
    Abstract: Enhanced action cleaning elements enable increased deblinding efficiency of gyratory sifters. The enhanced action cleaning elements increase the collisions between the elements and the screens of the gyratory sifters to enhance deblinding the screens of the gyratory sifter.
    Type: Application
    Filed: October 14, 2009
    Publication date: August 4, 2011
    Applicant: M-I L.L.C.
    Inventor: Mark Heitfeld