Patents by Inventor Christopher Robin Grace

Christopher Robin 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).

  • Patent number: 11641990
    Abstract: A mobile cleaning robot includes a removable filter unit configured to receive a supply airflow generated by a blower and to filter debris from the supply airflow, a filter seat, a filter access opening, a filter access door, and a filter presence system. The filter access door is pivotable between a closed position, wherein the filter access door covers the filter access opening, and an open position, wherein the filter access door is displaced from the filter access opening to permit access to the filter seat. The filter presence system is configured to: permit the filter access door to move from the open position into the closed position when the filter unit is disposed in the filter seat; and prevent the filter access door from being moved into the closed position when the filter unit is not disposed in the filter seat. The filter presence system includes a lift arm movable between an extended position and a retracted position.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 9, 2023
    Assignee: iRobot Corporation
    Inventors: Eric Burbank, Christopher Robin Grace, Oliver Majer Lewis, Stephen Albert Hickey, Jude Royston Jonas
  • Patent number: 11027580
    Abstract: A wheel for an autonomous cleaning robot that maneuvers the robot on a floor surface includes a tire having first and second opposing outer edges and a middle portion having a tread pattern between the first and second outer edges, the tread pattern comprising a plurality of raised tread having trenches therebetween. Each of the plurality of raised tread includes a first raised tread portion extending from the first outer edge to the middle portion and substantially perpendicular to the first and second outer edges; a second raised tread portion extending at an angle away from the first raised tread portion; and a third raised tread portion extending from the second raised tread portion to the second outer edge and substantially perpendicular to the first and second outer edges, the third raised tread portion being laterally offset from the first raised tread portion.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: June 8, 2021
    Assignee: iRobot Corporation
    Inventors: Christopher Robin Grace, Lindsay Louise Wright, Timothy James Haughton, Marcus R. Williams, John Reimels, Timothy William Fleck
  • Publication number: 20200405106
    Abstract: A mobile cleaning robot includes a removable filter unit configured to receive a supply airflow generated by a blower and to filter debris from the supply airflow, a filter seat, a filter access opening, a filter access door, and a filter presence system. The filter access door is pivotable between a closed position, wherein the filter access door covers the filter access opening, and an open position, wherein the filter access door is displaced from the filter access opening to permit access to the filter seat. The filter presence system is configured to: permit the filter access door to move from the open position into the closed position when the filter unit is disposed in the filter seat; and prevent the filter access door from being moved into the closed position when the filter unit is not disposed in the filter seat. The filter presence system includes a lift arm movable between an extended position and a retracted position.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Eric Burbank, Christopher Robin Grace, Oliver Majer Lewis, Stephen Albert Hickey, Jude Royston Jonas
  • Patent number: 10779695
    Abstract: A mobile cleaning robot includes a removable filter unit configured to receive a supply airflow generated by a blower and to filter debris from the supply airflow, a filter seat, a filter access opening, a filter access door, and a filter presence system. The filter access door is pivotable between a closed position, wherein the filter access door covers the filter access opening, and an open position, wherein the filter access door is displaced from the filter access opening to permit access to the filter seat. The filter presence system is configured to: permit the filter access door to move from the open position into the closed position when the filter unit is disposed in the filter seat; and prevent the filter access door from being moved into the closed position when the filter unit is not disposed in the filter seat. The filter presence system includes a lift arm movable between an extended position and a retracted position.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: September 22, 2020
    Assignee: iRobot Corporation
    Inventors: Eric Burbank, Christopher Robin Grace, Oliver Majer Lewis, Stephen Albert Hickey, Jude Royston Jonas
  • Publication number: 20190210409
    Abstract: A wheel for an autonomous cleaning robot that maneuvers the robot on a floor surface includes a tire having first and second opposing outer edges and a middle portion having a tread pattern between the first and second outer edges, the tread pattern comprising a plurality of raised tread having trenches therebetween. Each of the plurality of raised tread includes a first raised tread portion extending from the first outer edge to the middle portion and substantially perpendicular to the first and second outer edges; a second raised tread portion extending at an angle away from the first raised tread portion; and a third raised tread portion extending from the second raised tread portion to the second outer edge and substantially perpendicular to the first and second outer edges, the third raised tread portion being laterally offset from the first raised tread portion.
    Type: Application
    Filed: January 3, 2019
    Publication date: July 11, 2019
    Inventors: Christopher Robin Grace, Lindsay Louise Wright, Timothy James Haughton, Marcus R. Williams, John Reimels, Timothy William Fleck
  • Publication number: 20190200826
    Abstract: A mobile cleaning robot includes a removable filter unit configured to receive a supply airflow generated by a blower and to filter debris from the supply airflow, a filter seat, a filter access opening, a filter access door, and a filter presence system. The filter access door is pivotable between a closed position, wherein the filter access door covers the filter access opening, and an open position, wherein the filter access door is displaced from the filter access opening to permit access to the filter seat. The filter presence system is configured to: permit the filter access door to move from the open position into the closed position when the filter unit is disposed in the filter seat; and prevent the filter access door from being moved into the closed position when the filter unit is not disposed in the filter seat. The filter presence system includes a lift arm movable between an extended position and a retracted position.
    Type: Application
    Filed: July 18, 2018
    Publication date: July 4, 2019
    Inventors: Eric Burbank, Christopher Robin Grace, Oliver Majer Lewis, Stephen Albert Hickey, Jude Royston Jonas