Patents by Inventor Lex A. Mellott
Lex A. Mellott 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: 11661319Abstract: A lift device includes a base, a turntable coupled to the base, a boom pivotably coupled to the turntable, and an actuator assembly. The actuator assembly includes a first actuator, a first coupler positioned at a first end of the first actuator, a second actuator, a second coupler positioned at a third end of the second actuator, and a third coupler. The first coupler and the second coupler pivotably couple the first actuator and the second actuator, respectively, to one of the boom or the turntable. The third coupler includes a body and a plurality of arms extending from the body. The body defines (i) a first interface that engages with an opposing second end of the first actuator and (ii) a second interface that engages with an opposing fourth end of the second actuator. The plurality of arms are pivotably coupled to the other one of the boom or the turntable.Type: GrantFiled: January 14, 2022Date of Patent: May 30, 2023Assignee: Oshkosh CorporationInventors: Lex A. Mellott, Eric T. Welsh
-
Publication number: 20220135381Abstract: A lift device includes a base, a turntable coupled to the base, a boom pivotably coupled to the turntable, and an actuator assembly. The actuator assembly includes a first actuator, a first coupler positioned at a first end of the first actuator, a second actuator, a second coupler positioned at a third end of the second actuator, and a third coupler. The first coupler and the second coupler pivotably couple the first actuator and the second actuator, respectively, to one of the boom or the turntable. The third coupler includes a body and a plurality of arms extending from the body. The body defines (i) a first interface that engages with an opposing second end of the first actuator and (ii) a second interface that engages with an opposing fourth end of the second actuator. The plurality of arms are pivotably coupled to the other one of the boom or the turntable.Type: ApplicationFiled: January 14, 2022Publication date: May 5, 2022Applicant: Oshkosh CorporationInventors: Lex A. Mellott, Eric T. Welsh
-
Patent number: 11225400Abstract: A lift device includes a base, a boom coupled to the base, and an actuator assembly having (i) a first end coupled to the base and (ii) an opposing second end coupled the boom. The actuator assembly includes a first actuator, a second actuator, and a coupler coupling the first actuator and the second actuator together at or proximate one of the first end or the opposing second end of the actuator assembly. The coupler is pivotally coupled to a pivot point of one of the boom or the base. The coupler pivots with the first actuator and the second actuator about the pivot point.Type: GrantFiled: April 2, 2020Date of Patent: January 18, 2022Assignee: Oshkosh CorporationInventors: Lex A. Mellott, Eric T. Welsh
-
Publication number: 20200231417Abstract: A lift device includes a base, a boom coupled to the base, and an actuator assembly having (i) a first end coupled to the base and (ii) an opposing second end coupled the boom. The actuator assembly includes a first actuator, a second actuator, and a coupler coupling the first actuator and the second actuator together at or proximate one of the first end or the opposing second end of the actuator assembly. The coupler is pivotally coupled to a pivot point of one of the boom or the base. The coupler pivots with the first actuator and the second actuator about the pivot point.Type: ApplicationFiled: April 2, 2020Publication date: July 23, 2020Applicant: Oshkosh CorporationInventors: Lex A. Mellott, Eric T. Welsh
-
Patent number: 10611611Abstract: A boom assembly includes a first boom, a second boom pivotally coupled to the first boom, and an actuator assembly having (i) a first end coupled to at least one of the first boom or the second boom and (ii) an opposing second end coupled to the second boom. The actuator assembly includes a first actuator, a second actuator flexibly joined to the first actuator at the opposing second end of the actuator assembly, and a rigid coupler positioned to fixedly couple the first actuator and the second actuator together at the first end of the actuator assembly. The rigid coupler is configured to pivotally couple the first end of the actuator assembly to the at least one of the first boom or the second boom. The first actuator and the second actuator are configured to move relative to one another in response to various loading conditions.Type: GrantFiled: May 14, 2019Date of Patent: April 7, 2020Assignee: Oshkosh CorporationInventors: Lex A. Mellott, Eric T. Welsh
-
Publication number: 20190263639Abstract: A boom assembly includes a first boom, a second boom pivotally coupled to the first boom, and an actuator assembly having (i) a first end coupled to at least one of the first boom or the second boom and (ii) an opposing second end coupled to the second boom. The actuator assembly includes a first actuator, a second actuator flexibly joined to the first actuator at the opposing second end of the actuator assembly, and a rigid coupler positioned to fixedly couple the first actuator and the second actuator together at the first end of the actuator assembly. The rigid coupler is configured to pivotally couple the first end of the actuator assembly to the at least one of the first boom or the second boom. The first actuator and the second actuator are configured to move relative to one another in response to various loading conditions.Type: ApplicationFiled: May 14, 2019Publication date: August 29, 2019Applicant: Oshkosh CorporationInventors: Lex A. Mellott, Eric T. Welsh
-
Patent number: 10294086Abstract: A boom assembly includes a lower boom, an upper boom, and an actuator assembly. The lower boom has an upper end and a base end. The base end is configured to be pivotally coupled to a lift device. The upper boom has a lower end pivotally coupled to the upper end of the lower boom. The actuator assembly has (i) a first end coupled to at least one of the upper end of the lower boom and the lower end of the upper boom, and (ii) an opposing second end coupled to the upper boom. The actuator assembly includes a first actuator and a second actuator. The second actuator is rigidly joined to the first actuator at the first end of the actuator assembly and flexibly joined to the first actuator at the opposing second end of the actuator assembly.Type: GrantFiled: April 5, 2017Date of Patent: May 21, 2019Assignee: Oshkosh CorporationInventors: Lex A. Mellott, Eric T. Welsh
-
Publication number: 20170291801Abstract: A boom assembly includes a lower boom, an upper boom, and an actuator assembly. The lower boom has an upper end and a base end. The base end is configured to be pivotally coupled to a lift device. The upper boom has a lower end pivotally coupled to the upper end of the lower boom. The actuator assembly has (i) a first end coupled to at least one of the upper end of the lower boom and the lower end of the upper boom, and (ii) an opposing second end coupled to the upper boom. The actuator assembly includes a first actuator and a second actuator. The second actuator is rigidly joined to the first actuator at the first end of the actuator assembly and flexibly joined to the first actuator at the opposing second end of the actuator assembly.Type: ApplicationFiled: April 5, 2017Publication date: October 12, 2017Applicant: Oshkosh CorporationInventors: Lex A. Mellott, Eric T. Welsh
-
Patent number: 9482245Abstract: A cylinder length sensor mounting and retaining assembly for a hydraulic cylinder includes a casing attachable to a blind end of the cylinder, a sensor retention cap affixable to the casing adjacent the blind end of the cylinder, and a locking pin extendable through the casing and positioned adjacent the sensor retention cap. The assembly facilitates sensor removal without requiring disassembly of the cylinder.Type: GrantFiled: October 25, 2011Date of Patent: November 1, 2016Assignee: JLG INDUSTRIES, INC.Inventors: Christopher L. Palmer, Lex A. Mellott
-
Publication number: 20130174727Abstract: A cylinder length sensor mounting and retaining assembly for a hydraulic cylinder includes a casing attachable to a blind end of the cylinder, a sensor retention cap affixable to the casing adjacent the blind end of the cylinder, and a locking pin extendable through the casing and positioned adjacent the sensor retention cap. The assembly facilitates sensor removal without requiring disassembly of the cylinder.Type: ApplicationFiled: October 25, 2011Publication date: July 11, 2013Applicant: JLG INDUSTRIES, INC.Inventors: Christopher L. Palmer, Lex A. Mellott
-
Patent number: 6827176Abstract: A vehicle includes a chassis supporting two front axle assemblies and two rear axle assemblies. Each of the front and rear axle assemblies includes an extendible and retractable axle supporting an independently steerable wheel and a steering mechanism. The axles of the respective front and rear axle assemblies are offset from each other. By providing independently steerable wheels, the vehicle is operable in a plurality of steering modes including two-wheel steer, crab steer and coordinated steer. A steering angle for each steering wheel is determined according to a steering angle of an inside front wheel on a turn-by-turn basis.Type: GrantFiled: January 7, 2003Date of Patent: December 7, 2004Assignee: JLG Industries, Inc.Inventors: Andrew J. Bean, Michael J. Blumberg, Richard J. Livdahl, Lex A. Mellott
-
Publication number: 20040129491Abstract: A vehicle includes a chassis supporting two front axle assemblies and two rear axle assemblies. Each of the front and rear axle assemblies includes an extendible and retractable axle supporting an independently steerable wheel and a steering mechanism. The axles of the respective front and rear axle assemblies are offset from each other. By providing independently steerable wheels, the vehicle is operable in a plurality of steering modes including two-wheel steer, crab steer and coordinated steer. A steering angle for each steering wheel is determined according to a steering angle of an inside front wheel on a turn-by-turn basis.Type: ApplicationFiled: January 7, 2003Publication date: July 8, 2004Inventors: Andrew J. Bean, Michael J. Blumberg, Richard J. Livdahl, Lex A. Mellott
-
Patent number: 6330933Abstract: A controller, for a scissor lift control system includes a multiplexing device for lessening the number of conductor lines sent to the controller. The controller includes a microprocessor, and it determines appropriate safe operations of the scissor lift based on various sensed inputs, such as height of the platform and load on the platform. The scissor lift is operated by pushing either a drive select push button, a lift select push button, or a deck select push button. After the switch is selected, the operator has a predetermined amount of time to stroke the joystick in order to effect movement of the scissor lift.Type: GrantFiled: November 29, 1999Date of Patent: December 18, 2001Assignee: JLG Industries, Inc.Inventors: Brian M. Boeckman, Lex A. Mellott
-
Patent number: 5992562Abstract: A controller for a scissor lift control system includes a multiplexing device for lessening the number of conductor lines sent to the controller. The controller includes a microprocessor, and it determines appropriate safe operations of the scissor lift based on various sensed inputs, such as height of the platform and load on the platform. The scissor lift is operated by pushing either a drive select push button, a lift select push button, or a deck select push button. After the switch is selected, the operator has a predetermined amount of time to stroke the joystick in order to effect movement of the scissor lift.Type: GrantFiled: January 26, 1996Date of Patent: November 30, 1999Assignee: JLG Industries, Inc.Inventors: Brian M. Boeckman, Lex A. Mellott
-
Patent number: 4392698Abstract: A vehicle having a chassis and a rotatable upper works is provided with a cylindrical electrical connector mounted remote from the axis of rotation of the upper works, to provide adequate ground clearance.Type: GrantFiled: December 30, 1980Date of Patent: July 12, 1983Assignee: JLG Industries Inc.Inventor: Lex A. Mellott