Patents by Inventor John A. Ruvang

John A. Ruvang 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).

  • Publication number: 20240011255
    Abstract: A wear component assembly for use with a material handling implement can include an adapter configured for attachment to a lip of the material handling implement, the adapter having a forward-projecting nose, and a wear component including a pocket configured to receive the nose therein, the pocket having a deepest internal surface, and the surface being longitudinally spaced apart from a forward end of the nose. Another wear component assembly can include an adapter and a wear component, and in which contact between an inclined surface formed on the nose and an inclined surface formed in the pocket prevents contact between a deepest pocket surface and a forward end of the nose. A material handling implement can include a wear component including a pocket that receives an adapter nose therein, the pocket having a deepest internal surface longitudinally spaced apart from a forward end of the nose.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 11, 2024
    Inventor: John A. RUVANG
  • Publication number: 20230417028
    Abstract: A fastening system can include a clamp configured to engage profiles formed in respective legs of a wear component, a wedge having a face configured to engage the clamp, and another face being configured to engage a surface of an opening formed through a lip, an externally threaded member rotatable by a shaft, and a biasing device that exerts an axially biasing force against the threaded member. A method can include positioning a wear component on a lip, installing a clamp into an opening formed through the lip, engaging surfaces of the clamp with profiles formed in legs of a wear component, installing a wedge into the opening, a face of the wedge engaging the clamp and an opposing face of the wedge engaging a surface of the opening, and rotating a shaft, thereby compressing a biasing device and exerting a biasing force that biases the wedge into the opening.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 28, 2023
    Inventor: John A. RUVANG
  • Publication number: 20230287661
    Abstract: An abutment assembly for reacting forces applied to a wear component attached to a lip of a material handling implement can include a base configured to be rigidly secured to the lip, and an abutment displaceable relative to the base and configured to contact a surface of the wear component. A method of securing a wear component on a material handling implement can include rigidly attaching a base of an abutment assembly to the lip, positioning the wear component on the lip, and then displacing an abutment of the abutment assembly relative to the base. The displacing step can include the abutment contacting a surface of the wear component.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 14, 2023
    Inventor: John A. RUVANG
  • Publication number: 20220403629
    Abstract: A wear component securement system can include a housing securable against rotation relative to a wear component, a pin rotatable in a passage of the housing about an axis of rotation, the pin being configured to displace along the axis of rotation in response to rotation of the pin in the passage, and a resilient member that resists rotation of the pin away from a locked position relative to the housing. A method can include installing a housing, a pin received in the housing, and a resilient member that resists rotation of the pin, the installing including preventing rotation of the housing relative to the wear component, and rotating the pin to a locked position, thereby aligning at least one bearing surface of the pin with at least one bearing surface of the wear component.
    Type: Application
    Filed: June 18, 2021
    Publication date: December 22, 2022
    Inventor: John A. RUVANG
  • Publication number: 20220259837
    Abstract: A heel shroud can include a base with a leg having a profile formed thereon and another leg having a receptacle and at least one wear member receiving opening formed therein, a wear member with a leg having a profile formed therein for sliding engagement with the base profile and another leg having at least one inwardly facing projection formed thereon, a retainer opening formed in the projection, and a retainer member received in the receptacle and the retainer opening. A method can include sliding a leg of a wear member onto a leg of a base, thereby aligning a receptacle formed in another base leg with a retainer opening formed in a projection of another wear member leg, inserting a retainer member in the receptacle and the retainer opening, and installing a fastener in the retainer member, thereby preventing removal of the retainer member from the receptacle.
    Type: Application
    Filed: February 17, 2021
    Publication date: August 18, 2022
    Inventor: John A. RUVANG
  • Patent number: 10370828
    Abstract: A wear member attachment system for use with an excavation implement can include a connector that releasably secures a wear member to the excavation implement, the connector including an elongated housing and engagement members extendable and retractable relative to the housing. One engagement member can extend relative to the housing when another engagement member retracts relative to the housing, and vice versa. A method of releasably securing a wear member to an excavation implement can include rotating a engagement member of a connector from an extended position in which opposing slots in the engagement member are aligned with respective projections in the wear member, to a retracted position in which the slots are not aligned with the projections. The rotating step can include extending another engagement member of the connector as the first connector displaces from the extended position to the retracted position.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: August 6, 2019
    Assignee: BLACK CAT WEAR PARTS LTD.
    Inventor: John A. Ruvang
  • Patent number: 9963857
    Abstract: A wear member attachment system for an excavation implement lip can include a wear member that protects an edge of the lip, and a wear member adapter that attaches the wear member to the lip, the wear member adapter being secured to the lip by a fastener, and the wear member being secured to the wear member adapter by another fastener. A method of protecting an excavation implement lip can include securing a wear member adapter to the implement, the wear member adapter including at least one receptacle, and inserting a protrusion on a wear member into the receptacle. Another system can include a wear member that protects a forward edge of a lip, and a wear member adapter that attaches the wear member to the lip between two adjacent teeth. The wear member can comprise a shroud and the adapter can wrap about an edge of the lip.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: May 8, 2018
    Assignee: Black Cat Blades Ltd.
    Inventor: John A. Ruvang
  • Publication number: 20170342688
    Abstract: A wear member attachment system for use with an excavation implement can include a connector that releasably secures a wear member to the excavation implement, the connector including an elongated housing and engagement members extendable and retractable relative to the housing. One engagement member can extend relative to the housing when another engagement member retracts relative to the housing, and vice versa. A method of releasably securing a wear member to an excavation implement can include rotating a engagement member of a connector from an extended position in which opposing slots in the engagement member are aligned with respective projections in the wear member, to a retracted position in which the slots are not aligned with the projections. The rotating step can include extending another engagement member of the connector as the first connector displaces from the extended position to the retracted position.
    Type: Application
    Filed: May 1, 2017
    Publication date: November 30, 2017
    Inventor: John A. RUVANG
  • Patent number: 9657463
    Abstract: A wear member attachment system for an excavation implement can include a retainer with an abutment that engages a forward side of an opening extending through a lip of the excavation implement, the retainer further including a cam. Rotation of the cam displaces the abutment forward relative to a body of the retainer. Another wear member attachment system can include a retainer with a cam and an abutment. Rotation of the cam displaces the abutment outward relative to a body of the retainer. The abutment displacement is in a direction orthogonal to an axis of rotation of the cam.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: May 23, 2017
    Assignee: BLACK CAT BLADES, LTD.
    Inventor: John A. Ruvang
  • Publication number: 20160356023
    Abstract: A wear member attachment system for an excavation implement can include a retainer with an abutment that engages a forward side of an opening extending through a lip of the excavation implement, the retainer further including a cam. Rotation of the cam displaces the abutment forward relative to a body of the retainer. Another wear member attachment system can include a retainer with a cam and an abutment. Rotation of the cam displaces the abutment outward relative to a body of the retainer. The abutment displacement is in a direction orthogonal to an axis of rotation of the cam.
    Type: Application
    Filed: March 2, 2016
    Publication date: December 8, 2016
    Inventor: John A. RUVANG
  • Publication number: 20160237658
    Abstract: A wear member attachment system for an excavation implement lip can include a wear member that protects an edge of the lip, and a wear member adapter that attaches the wear member to the lip, the wear member adapter being secured to the lip by a fastener, and the wear member being secured to the wear member adapter by another fastener. A method of protecting an excavation implement lip can include securing a wear member adapter to the implement, the wear member adapter including at least one receptacle, and inserting a protrusion on a wear member into the receptacle. Another system can include a wear member that protects a forward edge of a lip, and a wear member adapter that attaches the wear member to the lip between two adjacent teeth. The wear member can comprise a shroud and the adapter can wrap about an edge of the lip.
    Type: Application
    Filed: December 9, 2015
    Publication date: August 18, 2016
    Inventor: John A. RUVANG
  • Patent number: 9409258
    Abstract: A wear member stabilization system can include a wear member having recesses formed therein on opposing sides of an excavator lip receiving slot, the recesses receiving therein respective stabilization abutments which protrude outwardly from respective opposing inner and outer sides of the lip. A method of stabilizing a wear member on an excavator lip can include welding stabilization abutments to respective inner and outer sides of the lip, sliding the wear member onto the excavator lip, thereby engaging the stabilization abutments with respective recesses formed in the wear member, the stabilization abutments contacting lateral sides of the recesses between a forward end of the excavator lip and an opening extending through the excavator lip, thereby limiting lateral movement of the wear member relative to the excavator lip.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: August 9, 2016
    Assignee: Black Cat Blades, Ltd.
    Inventor: John A. Ruvang
  • Publication number: 20150167277
    Abstract: A wear member stabilization system can include a wear member having recesses formed therein on opposing sides of an excavator lip receiving slot, the recesses receiving therein respective stabilization abutments which protrude outwardly from respective opposing inner and outer sides of the lip. A method of stabilizing a wear member on an excavator lip can include welding stabilization abutments to respective inner and outer sides of the lip, sliding the wear member onto the excavator lip, thereby engaging the stabilization abutments with respective recesses formed in the wear member, the stabilization abutments contacting lateral sides of the recesses between a forward end of the excavator lip and an opening extending through the excavator lip, thereby limiting lateral movement of the wear member relative to the excavator lip.
    Type: Application
    Filed: November 5, 2014
    Publication date: June 18, 2015
    Inventor: John A. RUVANG
  • Patent number: 8943718
    Abstract: An attachment system for use with an excavation implement can include a retainer which secures a wear member to a lip of the excavation implement, the retainer being fixedly attached to the lip, and a biasing device retained within the retainer. The biasing device biases the wear member toward the lip. A method of attaching a wear member to a lip of an excavation implement can include installing a biasing device in a retainer fixedly secured to the lip, and then positioning the wear member on the lip. Another attachment system can include a biasing device which is compressed between the retainer and the locking device. Another method of attaching a wear member can include positioning the wear member on the lip, then extending the locking device from the wear member, and then compressing the biasing device between the locking device and the retainer.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: February 3, 2015
    Assignee: Black Cat Blades Ltd.
    Inventor: John A. Ruvang
  • Publication number: 20140202049
    Abstract: An attachment system for use with an excavation implement can include a retainer which secures a wear member to a lip of the excavation implement, the retainer being fixedly attached to the lip, and a biasing device retained within the retainer. The biasing device biases the wear member toward the lip. A method of attaching a wear member to a lip of an excavation implement can include installing a biasing device in a retainer fixedly secured to the lip, and then positioning the wear member on the lip. Another attachment system can include a biasing device which is compressed between the retainer and the locking device. Another method of attaching a wear member can include positioning the wear member on the lip, then extending the locking device from the wear member, and then compressing the biasing device between the locking device and the retainer.
    Type: Application
    Filed: January 22, 2013
    Publication date: July 24, 2014
    Applicant: BLACK CAT BLADES LTD.
    Inventor: John A. RUVANG
  • Patent number: 8561326
    Abstract: A wear assembly for use on a material handling apparatus can include a base having an attachment surface which attaches to the material handling apparatus and an engagement surface which is substantially parallel to the attachment surface, and a cover which protects the base from wear, the cover including another engagement surface which complementarily engages the base engagement surface. Another wear assembly can include a base having an attachment surface which attaches to the apparatus, and engagement surfaces which are inclined and not perpendicular relative to the attachment surface. The wear assembly can also include a cover with engagement surfaces which complementarily engage the base engagement surfaces. Yet another wear assembly can include a base having an attachment surface which attaches to the material handling apparatus, a cover which protects the base from wear, and an internally threaded nut received in a recess in the base.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: October 22, 2013
    Assignee: Black Cat Blades Ltd.
    Inventor: John A. Ruvang
  • Patent number: 8429838
    Abstract: An excavator implement attachment system can include a tooth having a pocket formed therein, an insert received in a recess formed in an adaptor nose and a threaded fastener which releasably secures the tooth on the nose, the fastener having a helical thread formed thereon which is eccentric relative to a fastener body. A tooth can include a pocket with at least one side wall which has an insert-receiving recess and generally planar insert-engaging interface surfaces formed therein, with one interface surface resisting rotation of the tooth about a longitudinal axis in one direction, and another interface surface resisting rotation of the tooth about the longitudinal axis in an opposite direction. An excavator tooth can include a pocket bounded by opposing side walls, with at least one of the side walls having an insert-receiving recess internally formed thereon, whereby the recess receives an insert installed in an adaptor nose.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: April 30, 2013
    Assignee: Black Cat Blades Ltd.
    Inventor: John A. Ruvang
  • Publication number: 20130052390
    Abstract: A wear assembly for use on a material handling apparatus can include a base having an attachment surface which attaches to the material handling apparatus and an engagement surface which is substantially parallel to the attachment surface, and a cover which protects the base from wear, the cover including another engagement surface which complementarily engages the base engagement surface. Another wear assembly can include a base having an attachment surface which attaches to the apparatus, and engagement surfaces which are inclined and not perpendicular relative to the attachment surface. The wear assembly can also include a cover with engagement surfaces which complementarily engage the base engagement surfaces. Yet another wear assembly can include a base having an attachment surface which attaches to the material handling apparatus, a cover which protects the base from wear, and an internally threaded nut received in a recess in the base.
    Type: Application
    Filed: July 25, 2012
    Publication date: February 28, 2013
    Applicant: BLACK CAT BLADES LTD.
    Inventor: John A. RUVANG
  • Publication number: 20120304505
    Abstract: An excavator implement attachment system can include a tooth having a pocket formed therein, an insert received in a recess formed in an adaptor nose and a threaded fastener which releasably secures the tooth on the nose, the fastener having a helical thread formed thereon which is eccentric relative to a fastener body. A tooth can include a pocket with at least one side wall which has an insert-receiving recess and generally planar insert-engaging interface surfaces formed therein, with one interface surface resisting rotation of the tooth about a longitudinal axis in one direction, and another interface surface resisting rotation of the tooth about the longitudinal axis in an opposite direction. An excavator tooth can include a pocket bounded by opposing side walls, with at least one of the side walls having an insert-receiving recess internally formed thereon, whereby the recess receives an insert installed in an adaptor nose.
    Type: Application
    Filed: August 10, 2012
    Publication date: December 6, 2012
    Applicant: BLACK CAT BLADES LTD.
    Inventor: John A. RUVANG
  • Patent number: 8307574
    Abstract: A fully stabilized excavator tooth attachment. An excavator tooth includes a nose-receiving pocket bounded by an inner end, upper and lower, and opposing side walls, the end wall having a nose-engaging interface surface formed orthogonal to a longitudinal axis of the tooth, at least one of the side walls having a fastener opening formed therethrough, and each of the upper and lower walls having two spaced apart nose-engaging interface surfaces formed thereon substantially parallel to each other. Another excavator tooth includes side walls having generally planar nose-engaging interface surfaces formed therein, one surface resisting rotation of the tooth about the longitudinal axis in one direction, and another interface surface resisting rotation of the tooth in an opposite direction. An attachment system includes a fastener configured for releasably securing the tooth on the nose, the fastener having a thread which is eccentric relative to a body of the fastener.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 13, 2012
    Assignee: Black Cat Blades Ltd.
    Inventor: John A. Ruvang