Patents by Inventor Stewart Boyd

Stewart Boyd 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: 12269376
    Abstract: Various implementations include a seat riser system. The system includes a base and a seat. The base has a base center line, a first base end, a second base end spaced apart along the base center line, a first base side, and a second base side spaced apart from the first base side. The seat has a seat center line, a first seat end, a second seat end spaced apart along the seat center line, a first seat side, a second seat side spaced apart from the first seat side, and a bottom seat surface rotationally coupled to the base such that the seat is rotatable about a seat rotational axis. The seat rotational axis is spaced apart from the seat center line such that the seat rotational axis is closer to the first seat side than it is to the second seat side.
    Type: Grant
    Filed: June 12, 2024
    Date of Patent: April 8, 2025
    Assignee: Protomet Corporation
    Inventors: Nathan Mellas, Barrett Tillman, Stewart Boyd, William Matthew Reid
  • Patent number: 12116089
    Abstract: Various implementations include a clamping storage device. The device includes a clamping assembly having a proximal stop, a gas spring, and a distal stop. The proximal stop extends along a proximal stop longitudinal axis. The gas spring has a gas spring longitudinal axis, first end, and a second end. The first end of the gas spring is coupled to the proximal stop. The distal stop is coupled to the second end of the gas spring and extends along a distal stop longitudinal axis. The proximal stop longitudinal axis and the distal stop longitudinal axis are both locatable in an assembly plane that incudes the gas spring longitudinal axis. The gas spring is biased toward an extended position and urgable toward a retracted state. The gas spring is movable toward the extended position in an unlocked state and is prevented from being moved toward the extended position in a locked state.
    Type: Grant
    Filed: May 21, 2024
    Date of Patent: October 15, 2024
    Assignee: Protomet Corporation
    Inventors: Alec Stuckey, Brian Pitcher, Lynn Haynes, Aaron Pierce, Stewart Boyd, William Matthew Reid, Jeff Bohanan
  • Patent number: 12054226
    Abstract: Various implementations include a frame for supporting a bimini top. The frame includes base, forward, and aft assemblies. The forward assembly has a first portion and a second portion rotatably coupled to a forward portion of the base assembly. The aft assembly has a first portion and a second portion. The first portion of the aft assembly is slidably coupled to an aft portion of the base assembly. The forward and aft assemblies are movable between collapsed and extended positions. The forward or aft assembly is operatively coupled to a drive assembly such that rotation of a pulley of the drive assembly relative to the base assembly causes the forward or aft assembly to move between the collapsed and extended positions. Movement of the forward assembly from the collapsed position to the extended position causes the aft assembly to move from the collapsed position to the extended position.
    Type: Grant
    Filed: January 30, 2024
    Date of Patent: August 6, 2024
    Assignee: Protomet Corporation
    Inventors: Nathan Mellas, Stewart Boyd, William Reid, William Caden Webb, Aaron Pierce, Logan Atkins
  • Patent number: 11890978
    Abstract: Various implementations include an arm rest system. The system includes a housing, one or more actuators, and an arm cushion. The actuators are at least partially disposed within a cavity of the housing. Each of the actuators includes a cylinder defining an opening, a piston slidably disposed within the cylinder opening, and a piston rod having a first end coupled to the piston and a second end opposite and spaced apart from the first end. Each of the actuators is movable between a first position and a second position. One of the cylinder or the piston rod of each of the actuators is static with respect to the housing and the other is coupled to the arm cushion such that moving the actuators between the first and second positions moves the arm cushion relative to the housing.
    Type: Grant
    Filed: June 29, 2023
    Date of Patent: February 6, 2024
    Assignee: Protomet Corporation
    Inventors: Stewart Boyd, Alec Stuckey, Matt Reid
  • Patent number: 11873063
    Abstract: Various implementations include a sports board storage device. The device includes a housing, one or more linkages, a foot, and one or more linkage members. The housing has a first prong and a second prong. The one or more linkages are pivotably coupled to the first prong. The foot is pivotably coupled to the one or more linkages. The one or more linkage members are coupled to at least one of the one or more linkages. The one or more linkage members are movable relative to the housing to cause rotation of the one or more linkages and to cause the foot to move between a retracted position and an extended position. The foot is closer to the second prong in the extended position than it is in the retracted position.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: January 16, 2024
    Assignee: Protomet Corporation
    Inventors: Stewart Boyd, Nathan Mellas, Brian Pitcher, Lynn Haynes, William Matthew Reid, Jeff Bohanan, Alec Stuckey
  • Patent number: 11872913
    Abstract: Various implementations include a seat having a guide track, a base bracket, a first pivot arm, and a second pivot arm. The guide track includes an elongated track having a longitudinal centerline and one or more notches. The base bracket includes at least one laterally extending guide pin slidingly engaging the elongated track and disposable within the one or more notches. The first pivot arm is configured to support a forward cushion. The first pivot arm is rotatably coupled to the base bracket and movable between an upright position and a forward position. The second pivot arm is configured to support a rearward cushion. The second pivot arm is rotatably coupled to the base bracket and movable between an upright position and a rearward position.
    Type: Grant
    Filed: September 25, 2023
    Date of Patent: January 16, 2024
    Assignee: Protomet Corporation
    Inventors: Stewart Boyd, Brian Pitcher
  • Patent number: 11541970
    Abstract: A seat assembly includes: a backrest having a cushion surface formed on a first side of the backrest and support surface formed on a second side of the backrest; a first track assembly located along a first side of the backrest and a second track assembly located along a second side of the backrest; and a plurality of guide pins extending from the backrest into the first track assembly and the second track assembly such that the backrest is movable along the first track assembly and the second track assembly on the plurality of guide pins between a stowed position and a deployed position.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: January 3, 2023
    Inventors: Stewart Boyd, William Matthew Reid, Dale Lee Lambert
  • Patent number: 11255069
    Abstract: A front loader includes a link operating mechanism spanning a bucket and a stand. The link operating mechanism is configured to cause, using a swing force of the bucket, a bending and stretching link to bend so that propping and supporting of the bending and stretching link are released.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: February 22, 2022
    Assignee: Kubota Corporation
    Inventors: Robert Stewart Boyd, Erik Baker
  • Patent number: 11168461
    Abstract: A front loader includes a boom, a main frame attached to a vehicle body, a sub frame supporting the boom and being detachably attached to the main frame. The front loader includes a receiving tool provided on the main frame a cylindrical shaft provided on the sub frame and configured to be engaged with the receiving tool when attaching the sub frame to the main frame, a protruding portion protruding from the main frame and configured to guide the cylindrical shaft to be engaged with the receiving tool, and a coupling plate provided on the sub frame, the coupling plate having an opening through which the protruding portion is inserted when the cylindrical shaft is engaged with the receiving tool. The protruding portion protrudes forward from the main frame in a front-rear direction of the vehicle body.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: November 9, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Robert Stewart Boyd, Erik Baker
  • Patent number: 10982412
    Abstract: A hydraulic system includes: a boom cylinder; a working tool cylinder; a boom control valve; a working tool control valve; first and second fluid tubes through which operation fluid is supplied to the boom cylinder; third and fourth fluid tubes through which operation fluid is supplied to the working tool cylinder; a first relief valve provided in a first bypass fluid tube and configured to allow the operation fluid to flow from the fourth fluid tube toward the first fluid tube and to block the operation fluid flowing from the first fluid tube toward the fourth fluid tube; and a second relief valve provided in a second bypass fluid tube and configured to allow the operation fluid to flow from the third fluid tube toward the second fluid tube and to block the operation fluid flowing from the second fluid tube toward the third fluid tube.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 20, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Robert Stewart Boyd, Kosuke Oyama
  • Publication number: 20210040709
    Abstract: A front loader includes a boom, a main frame attached to a vehicle body, a sub frame supporting the boom and being detachably attached to the main frame. The front loader includes a receiving tool provided on the main frame a cylindrical shaft provided on the sub frame and configured to be engaged with the receiving tool when attaching the sub frame to the main frame, a protruding portion protruding from the main frame and configured to guide the cylindrical shaft to be engaged with the receiving tool, and a coupling plate provided on the sub frame, the coupling plate having an opening through which the protruding portion is inserted when the cylindrical shaft is engaged with the receiving tool. The protruding portion protrudes forward from the main frame in a front-rear direction of the vehicle body.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 11, 2021
    Inventors: Robert Stewart BOYD, Erik BAKER
  • Publication number: 20200407944
    Abstract: A hydraulic system includes: a boom cylinder; a working tool cylinder; a boom control valve; a working tool control valve; first and second fluid tubes through which operation fluid is supplied to the boom cylinder; third and fourth fluid tubes through which operation fluid is supplied to the working tool cylinder; a first relief valve provided in a first bypass fluid tube and configured to allow the operation fluid to flow from the fourth fluid tube toward the first fluid tube and to block the operation fluid flowing from the first fluid tube toward the fourth fluid tube; and a second relief valve provided in a second bypass fluid tube and configured to allow the operation fluid to flow from the third fluid tube toward the second fluid tube and to block the operation fluid flowing from the second fluid tube toward the third fluid tube.
    Type: Application
    Filed: June 12, 2020
    Publication date: December 31, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Robert STEWART BOYD, Kosuke OYAMA
  • Patent number: 10851518
    Abstract: A front loader includes a boom, a main frame attached to a vehicle body, and a sub frame supporting the boom. The sub frame is attached to the main frame and configured to be detached from the main frame. The front loader includes a first engaging portion provided on the main frame, a second engaging portion provided on the sub frame and configured to be engaged with the first engaging portion when the sub frame is attached to the main frame, a guide portion provided on the main frame and configured to guide the second engaging portion to be engaged with the first engaging portion, and an opening member provided on the sub frame and provided with an opening portion to which the guide portion is inserted when the second engaging portion is engaged with the first engaging portion.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: December 1, 2020
    Assignee: KUBOTA CORPORATION
    Inventors: Robert Stewart Boyd, Erik Baker
  • Publication number: 20200340202
    Abstract: A front loader includes a link operating mechanism spanning a bucket and a stand. The link operating mechanism is configured to cause, using a swing force of the bucket, a bending and stretching link to bend so that propping and supporting of the bending and stretching link are released.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Inventors: Robert Stewart Boyd, Erik Baker
  • Patent number: 10815641
    Abstract: A link operating mechanism is provided spanning a bucket and a stand. The link operating mechanism causes, using a swing force of the bucket, a bending/stretching link to bend so that propping and supporting of the bending/stretching link are released.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: October 27, 2020
    Assignee: Kubota Corporation
    Inventor: Robert Stewart Boyd
  • Publication number: 20200291605
    Abstract: A front loader includes a boom, a main frame attached to a vehicle body, and a sub frame supporting the boom. The sub frame is attached to the main frame and configured to be detached from the main frame. The front loader includes a first engaging portion provided on the main frame, a second engaging portion provided on the sub frame and configured to be engaged with the first engaging portion when the sub frame is attached to the main frame, a guide portion provided on the main frame and configured to guide the second engaging portion to be engaged with the first engaging portion, and an opening member provided on the sub frame and provided with an opening portion to which the guide portion is inserted when the second engaging portion is engaged with the first engaging portion.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 17, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Robert Stewart BOYD, Erik BAKER
  • Patent number: 10753063
    Abstract: A front loader includes a link operating mechanism spanning a bucket and a stand. The link operating mechanism is configured to cause, using a swing force of the bucket, a bending and stretching link to bend so that propping and supporting of the bending and stretching link are released.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: August 25, 2020
    Assignee: Kubota Corporation
    Inventors: Robert Stewart Boyd, Erik Baker
  • Publication number: 20190301128
    Abstract: A link operating mechanism is provided spanning a bucket and a stand. The link operating mechanism causes, using a swing force of the bucket, a bending/stretching link to bend so that propping and supporting of the bending/stretching link are released.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 3, 2019
    Inventor: Robert Stewart Boyd
  • Patent number: 10370819
    Abstract: A link operating mechanism is provided spanning a bucket and a stand. The link operating mechanism causes, using a swing force of the bucket, a bending or stretching link to bend so that propping and supporting of the bending or stretching link are released.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: August 6, 2019
    Assignee: Kubota Corporation
    Inventor: Robert Stewart Boyd
  • Patent number: 10352019
    Abstract: A front loader includes a boom, a first pivotal shaft disposed on a tip portion of the boom, a bucket supported by the first pivotal shaft to be capable of performing a shoveling movement and a dumping movement, a boom cylinder to swing the boom, a bucket cylinder to move the bucket to make the bucket perform the shoveling movement and the dumping movement, a control valve to be switched to any one of a first state supplying an operation fluid to the bucket cylinder and a second state stopping supplying the operation fluid to the bucket cylinder, a first movable member to turn around the first pivotal shaft in accordance with the movement of the bucket, and a wire connecting the first movable member to the control valve.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: July 16, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Robert Stewart Boyd, Daniel Underwood, Carlos Cabrera