Patents by Inventor David Francis Biggin

David Francis Biggin 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: 9427741
    Abstract: A counterweight for use in a cone crusher that includes an inner oil chamber and an outer oil chamber to collect lubricating oil during operation of the cone crusher. The counterweight includes a vertical separating wall that receives a splash shield. The vertical separating wall and splash shield define an inner oil chamber while an outer oil chamber is defined by the splash shield, the vertical separating wall and an inner wall of the counterweight. Both the inner and outer oil chambers include drain holes that allow lubricating oil to pass through a generally horizontal floor of the counterweight. The combination of the inner and outer oil chambers allows oil to quickly exit the counterweight into the main oil sump and reduces the amount of oil that gets exposed to the upper seal assembly which reduces the passage of oil past seal assemblies formed in the cone crusher.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: August 30, 2016
    Assignee: Metso Minerals Industries, Inc.
    Inventor: David Francis Biggin
  • Patent number: 9399221
    Abstract: A bowl liner for use in a cone crusher that is comprised of a pair of bowl liner sections joined to each other to define the bowl liner. Each of the bowl liner sections includes first and second ends that engage opposite first and second vertical ends of the second bowl liner section. The first and second ends include key features that limit the axial movement of the first and second bowl liner sections relative to each other. Each of the first and second bowl liner sections further include a radial key and mating key slot to limit the radial movement between the bowl liner sections. The vertical joint between the bowl liner sections includes an inner relief that allows for manganese growth during use of the bowl liner.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: July 26, 2016
    Assignee: Metso Minerals Industries, Inc.
    Inventor: David Francis Biggin
  • Patent number: 9393567
    Abstract: A hydraulic separation system for use in a gyrational crusher to separate a socket of the crusher from a main shaft. The hydraulic separation system includes one or more hydraulic grooves formed at the interference contact area between the socket and the main shaft. Each hydraulic groove is fed with a supply of pressurized hydraulic fluid to aid in separation of the socket from the main shaft. An inner contact surface of the socket is tapered and engages a tapered outer surface of the main shaft. The mating tapered surfaces further aid in separation of the socket from the main shaft upon application of the pressurized hydraulic fluid.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: July 19, 2016
    Assignee: Metso Minerals Industries, Inc.
    Inventor: David Francis Biggin
  • Publication number: 20150352556
    Abstract: A counterweight for use in a cone crusher that includes an inner oil chamber and an outer oil chamber to collect lubricating oil during operation of the cone crusher. The counterweight includes a vertical separating wall that receives a splash shield. The vertical separating wall and splash shield define an inner oil chamber while an outer oil chamber is defined by the splash shield, the vertical separating wall and an inner wall of the counterweight. Both the inner and outer oil chambers include drain holes that allow lubricating oil to pass through a generally horizontal floor of the counterweight. The combination of the inner and outer oil chambers allows oil to quickly exit the counterweight into the main oil sump and reduces the amount of oil that gets exposed to the upper seal assembly which reduces the passage of oil past seal assemblies formed in the cone crusher.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 10, 2015
    Applicant: METSO MINERALS INDUSTRIES, INC.
    Inventor: David Francis Biggin
  • Publication number: 20150209791
    Abstract: A hydraulic separation system for use in a gyrational crusher to separate a socket of the crusher from a main shaft. The hydraulic separation system includes one or more hydraulic grooves formed at the interference contact area between the socket and the main shaft. Each hydraulic groove is fed with a supply of pressurized hydraulic fluid to aid in separation of the socket from the main shaft. An inner contact surface of the socket is tapered and engages a tapered outer surface of the main shaft. The mating tapered surfaces further aid in separation of the socket from the main shaft upon application of the pressurized hydraulic fluid.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 30, 2015
    Applicant: Metso Minerals Industries, Inc.
    Inventor: David Francis Biggin
  • Publication number: 20140361106
    Abstract: A bowl liner for use in a cone crusher that is comprised of a pair of bowl liner sections joined to each other to define the bowl liner. Each of the bowl liner sections includes first and second ends that engage opposite first and second vertical ends of the second bowl liner section. The first and second ends include key features that limit the axial movement of the first and second bowl liner sections relative to each other. Each of the first and second bowl liner sections further include a radial key and mating key slot to limit the radial movement between the bowl liner sections. The vertical joint between the bowl liner sections includes an inner relief that allows for manganese growth during use of the bowl liner.
    Type: Application
    Filed: June 11, 2013
    Publication date: December 11, 2014
    Inventor: David Francis Biggin
  • Patent number: 8070084
    Abstract: A spider for use with a gyratory crusher. The spider includes spider arms each formed from two spaced flanges joined by a connecting web to define an open channel having an open top end. The configuration of the spider arms increases manufacturability and provides the required strength and rigidity for the spider. The channel formed in each spider arm is covered by a spider arm shield to reduce abrasive wear to the spider arm.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: December 6, 2011
    Assignee: Metso Minerals Industries, Inc.
    Inventors: David Francis Biggin, Walter Ray Marks
  • Publication number: 20110192927
    Abstract: A spider for use with a gyratory crusher. The spider includes spider arms each formed from two spaced flanges joined by a connecting web to define an open channel having an open top end. The configuration of the spider arms increases manufacturability and provides the required strength and rigidity for the spider. The channel formed in each spider arm is covered by a spider arm shield to reduce abrasive wear to the spider arm.
    Type: Application
    Filed: February 5, 2010
    Publication date: August 11, 2011
    Applicant: METSO MINERALS INDUSTRIES, INC.
    Inventors: David Francis Biggin, Walter Ray Marks