Patents by Inventor Chris Grace
Chris Grace 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).
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Patent number: 10612336Abstract: A drilling system, rotating control device, and a method for accessing a wellbore may employ a rotating control device arranged to form a dynamic seal between the housing and an exterior of the string to isolate the wellbore annulus under both a positive and a negative differential pressure across the seal. The rotating control device may including a sleeve rotatively disposed within the housing and rotatively carried near a longitudinal midpoint of the sleeve by a thrust bearing assembly. One or more seal retainers may be coupled to and sealed against the sleeve, each including a resilient element disposed to slide to a first sealing position within the seal retainer under a positive differential pressure across the element and to slide to a second sealing position within the seal retainer under a negative differential pressure across the element.Type: GrantFiled: February 16, 2015Date of Patent: April 7, 2020Assignee: HALLIBURTON ENERGY SERVICES, INC.Inventors: Derrick W. Lewis, Chris A. Grace
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Publication number: 20200000301Abstract: A robot floor cleaning system features a mobile floor cleaning robot and an evacuation station. The robot includes: a chassis with at least one drive wheel operable to propel the robot across a floor surface; a cleaning bin disposed within the robot and arranged to receive debris ingested by the robot during cleaning; and a robot vacuum configured to pull debris into the cleaning bin from an opening on an underside of the robot. The evacuation station is configured to evacuate debris from the cleaning bin of the robot, and includes: a housing defining a platform arranged to receive the cleaning robot in a position in which the opening on the underside of the robot aligns with a suction opening defined in the platform; and an evacuation vacuum in fluid communication with the suction opening and operable to draw air into the evacuation station housing through the suction opening.Type: ApplicationFiled: September 9, 2019Publication date: January 2, 2020Inventors: Russell Walter Morin, Harold Boeschenstein, Faruk Bursal, Chris Grace
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Patent number: 10405718Abstract: A robot floor cleaning system features a mobile floor cleaning robot and an evacuation station. The robot includes: a chassis with at least one drive wheel operable to propel the robot across a floor surface; a cleaning bin disposed within the robot and arranged to receive debris ingested by the robot during cleaning; and a robot vacuum configured to pull debris into the cleaning bin from an opening on an underside of the robot. The evacuation station is configured to evacuate debris from the cleaning bin of the robot, and includes: a housing defining a platform arranged to receive the cleaning robot in a position in which the opening on the underside of the robot aligns with a suction opening defined in the platform; and an evacuation vacuum in fluid communication with the suction opening and operable to draw air into the evacuation station housing through the suction opening.Type: GrantFiled: August 25, 2017Date of Patent: September 10, 2019Assignee: iRobot CorporationInventors: Russell Walter Morin, Harold Boeschenstein, Faruk Bursal, Chris Grace
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Publication number: 20180008111Abstract: A robot floor cleaning system features a mobile floor cleaning robot and an evacuation station. The robot includes: a chassis with at least one drive wheel operable to propel the robot across a floor surface; a cleaning bin disposed within the robot and arranged to receive debris ingested by the robot during cleaning; and a robot vacuum configured to pull debris into the cleaning bin from an opening on an underside of the robot. The evacuation station is configured to evacuate debris from the cleaning bin of the robot, and includes: a housing defining a platform arranged to receive the cleaning robot in a position in which the opening on the underside of the robot aligns with a suction opening defined in the platform; and an evacuation vacuum in fluid communication with the suction opening and operable to draw air into the evacuation station housing through the suction opening.Type: ApplicationFiled: August 25, 2017Publication date: January 11, 2018Inventors: Russell Walter Morin, Harold Boeschenstein, Faruk Bursal, Chris Grace
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Patent number: 9788698Abstract: A robot floor cleaning system features a mobile floor cleaning robot and an evacuation station. The robot includes: a chassis with at least one drive wheel operable to propel the robot across a floor surface; a cleaning bin disposed within the robot and arranged to receive debris ingested by the robot during cleaning; and a robot vacuum configured to pull debris into the cleaning bin from an opening on an underside of the robot. The evacuation station is configured to evacuate debris from the cleaning bin of the robot, and includes: a housing defining a platform arranged to receive the cleaning robot in a position in which the opening on the underside of the robot aligns with a suction opening defined in the platform; and an evacuation vacuum in fluid communication with the suction opening and operable to draw air into the evacuation station housing through the suction opening.Type: GrantFiled: December 10, 2014Date of Patent: October 17, 2017Assignee: iRobot CorporationInventors: Russell Walter Morin, Harold Boeschenstein, Faruk Bursal, Chris Grace
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Publication number: 20170191333Abstract: A drilling system, rotating control device, and a method for accessing a wellbore may employ a rotating control device arranged to form a dynamic seal between the housing and an exterior of the string to isolate the wellbore annulus under both a positive and a negative differential pressure across the seal. The rotating control device may including a sleeve rotatively disposed within the housing and rotatively carried near a longitudinal midpoint of the sleeve by a thrust bearing assembly. One or more seal retainers may be coupled to and sealed against the sleeve, each including a resilient element disposed to slide to a first sealing position within the seal retainer under a positive differential pressure across the element and to slide to a second sealing position within the seal retainer under a negative differential pressure across the element.Type: ApplicationFiled: February 16, 2015Publication date: July 6, 2017Inventors: Derrick W. Lewis, Chris A. Grace
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Publication number: 20160166126Abstract: A robot floor cleaning system features a mobile floor cleaning robot and an evacuation station. The robot includes: a chassis with at least one drive wheel operable to propel the robot across a floor surface; a cleaning bin disposed within the robot and arranged to receive debris ingested by the robot during cleaning; and a robot vacuum configured to pull debris into the cleaning bin from an opening on an underside of the robot. The evacuation station is configured to evacuate debris from the cleaning bin of the robot, and includes: a housing defining a platform arranged to receive the cleaning robot in a position in which the opening on the underside of the robot aligns with a suction opening defined in the platform; and an evacuation vacuum in fluid communication with the suction opening and operable to draw air into the evacuation station housing through the suction opening.Type: ApplicationFiled: December 10, 2014Publication date: June 16, 2016Inventors: Russell Walter Morin, Harold Boeschenstein, Faruk Bursal, Chris Grace