Patents by Inventor Gerard McHugh
Gerard McHugh 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).
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Patent number: 11040591Abstract: A wheeled work vehicle (1) comprises a forward chassis part (4) and a rearward chassis part (5) pivotally connected about a substantially vertically extending primary pivot axis (7) for steering thereof. A pair of forward ground engaging wheels (29) are carried on a forward suspension unit (32), and a pair of rearward ground engaging wheels (30) are carried on a rearward suspension unit (33). The forward suspension unit (32) is pivotally connected to the forward chassis part (4) by a pair of main forward transverse pivot shafts (63) pivotally coupled to the forward chassis part (4) by corresponding main forward pivot mountings (65). The main forward transverse pivot shafts (63) defines a main forward transverse pivot axis (59) about which the forward suspension unit (32) is pivotal relative to the forward chassis part (4).Type: GrantFiled: December 7, 2016Date of Patent: June 22, 2021Assignee: MULTIHOG R&D LIMITEDInventors: James McAdam, Gerard McHugh, Anthony Duff, Dallan McHugh, Daniel McElchar, Samuel Hampshire
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Patent number: 10953739Abstract: A work vehicle (1) comprising a forward part (3) and a rearward part (7) pivotally coupled about a main vertical pivot axis (10) for steering thereof. A power take-off shaft (29) is located adjacent a forward end (31) of the forward part (3) and is mechanically driven from a main output drive shaft (15) of an engine (14) located in the rearward part (7). A step-up gearbox (20) steps up the speed from the main output drive shaft (15) onto first and second output shafts (23, 24) for driving first and second hydraulic pumps (27, 28) which provide hydraulic supplies for motive power and for operating attachments attached to the forward end (31) of the forward part (3). A step-down gearbox (30) receives drive directly from the main output drive shaft (15) of the engine (14) and produces a stepped-down drive on an output shaft (33) of the step-down gearbox (30) with a gear ratio of 2:1.Type: GrantFiled: November 3, 2016Date of Patent: March 23, 2021Assignee: MULTIHOG R&D LIMITEDInventors: James Mcadam, Gerard Mchugh, Anthony Duff, Dallan Mchugh, Daniel Mcelchar, Samuel Hampshire
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Patent number: 10939602Abstract: A work vehicle (1) comprises a coupling apparatus (18) for coupling an attachment to the forward end (8) of the work vehicle (1). The coupling apparatus (18) comprises a three point linkage mechanism having a pair of lower coupling elements (19) and an upper coupling element (25). A first carrier element (22) is pivotally coupled to a forward chassis part (14) of the work vehicle (1) by a pair of main transverse pivot shafts (35) which define a main transverse pivot axis (33). A second carrier element (23) carries the lower coupling elements (19) and is pivotally coupled to the forward chassis part (14) about the main transverse pivot axis (33) and about a main longitudinal pivot axis (45).Type: GrantFiled: December 7, 2016Date of Patent: March 9, 2021Assignee: MULTIHOG R&D LIMITEDInventors: James McAdam, Gerard McHugh, Anthony Duff, Dallan McHugh, Daniel McElchar, Samuel Hampshire
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Publication number: 20190314869Abstract: Apparatus on a driver's cab roof mounts a hose terminating in a nozzle of a vacuum system. The apparatus includes a proximal carrier arm pivotally mounted on the cab roof about a vertically extending main pivot axis by a slewing mechanism. A distal carrier arm is pivotally coupled to the proximal carrier arm about a transversely extending horizontal first pivot axis. A first ram pivots the distal carrier arm upwardly and downwardly relative to the proximal carrier arm. The distal carrier arm is extendable between its proximal end and its distal end by a second ram. By pivoting the proximal carrier arm by the slewing mechanism, the nozzle is urged from one side of the vehicle to the other. By pivoting the distal carrier arm upwardly relative to the proximal carrier arm, and simultaneously extending the distal carrier arm, the reach of the nozzle is increased.Type: ApplicationFiled: November 27, 2017Publication date: October 17, 2019Applicant: MULTIHOG R&D LIMITEDInventors: James MCADAM, Samuel HAMPSHIRE, Daniel MCELCHAR, Gerard MCHUGH
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Publication number: 20180359902Abstract: A work vehicle (1) comprises a coupling apparatus (18) for coupling an attachment to the forward end (8) of the work vehicle (1). The coupling apparatus (18) comprises a three point linkage mechanism having a pair of lower coupling elements (19) and an upper coupling element (25). A first carrier element (22) is pivotally coupled to a forward chassis part (14) of the work vehicle (1) by a pair of main transverse pivot shafts (35) which define a main transverse pivot axis (33). A second carrier element (23) carries the lower coupling elements (19) and is pivotally coupled to the forward chassis part (14) about the main transverse pivot axis (33) and about a main longitudinal pivot axis (45).Type: ApplicationFiled: December 7, 2016Publication date: December 20, 2018Applicant: MULTIHOG R&D LIMITEDInventors: James MCADAM, Gerard MCHUGH, Anthony DUFF, Dallan MCHUGH, Daniel MCELCHAR, Samuel HAMPSHIRE
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Publication number: 20180354337Abstract: A wheeled work vehicle (1) comprises a forward chassis part (4) and a rearward chassis part (5) pivotally connected about a substantially vertically extending primary pivot axis (7) for steering thereof. A pair of forward ground engaging wheels (29) are carried on a forward suspension unit (32), and a pair of rearward ground engaging wheels (30) are carried on a rearward suspension unit (33). The forward suspension unit (32) is pivotally connected to the forward chassis part (4) by a pair of main forward transverse pivot shafts (63) pivotally coupled to the forward chassis part (4) by corresponding main forward pivot mountings (65). The main forward transverse pivot shafts (63) defines a main forward transverse pivot axis (59) about which the forward suspension unit (32) is pivotal relative to the forward chassis part (4).Type: ApplicationFiled: December 7, 2016Publication date: December 13, 2018Applicant: MULTIHOG R&D LIMITEDInventors: James MCADAM, Gerard MCHUGH, Anthony DUFF, Dallan MCHUGH, Daniel MCELCHAR, Samuel HAMPSHIRE
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Publication number: 20180319268Abstract: A work vehicle (1) comprising a forward part (3) and a rearward part (7) pivotally coupled about a main vertical pivot axis (10) for steering thereof. A power take-off shaft (29) is located adjacent a forward end (31) of the forward part (3) and is mechanically driven from a main output drive shaft (15) of an engine (14) located in the rearward part (7). A step-up gearbox (20) steps up the speed from the main output drive shaft (15) onto first and second output shafts (23, 24) for driving first and second hydraulic pumps (27, 28) which provide hydraulic supplies for motive power and for operating attachments attached to the forward end (31) of the forward part (3). A step-down gearbox (30) receives drive directly from the main output drive shaft (15) of the engine (14) and produces a stepped-down drive on an output shaft (33) of the step-down gearbox (30) with a gear ratio of 2:1.Type: ApplicationFiled: November 3, 2016Publication date: November 8, 2018Applicant: MULTIHOG R&D LIMITEDInventors: James MCADAM, Gerard MCHUGH, Anthony DUFF, Dallan MCHUGH, Daniel MCELCHAR, Samuel HAMPSHIRE
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Publication number: 20180291577Abstract: An attachment (60) for a wheeled work vehicle (2) for clearing snow comprises a support housing (3) which rotatably carries an elongated cylindrical brush (5) and a plough blade (4), with the plough blade (4) and the brush (5) alternately operable between a lower operative state and an upper inoperative state. End elements (62) are pivotally coupled about vertical pivot axes adjacent respective opposite ends (15,16) of the plough blade (4). The end elements (62) are pivotal about a main vertical pivot axis (64) between a plurality of forward and rearward states through respective outward states. A coupling mechanism (7) couples the attachment (1) to the wheeled work vehicle (2) so that the support housing (3) is slewable between a transverse state and respective maximum offset states.Type: ApplicationFiled: May 16, 2016Publication date: October 11, 2018Applicant: MULTIHOG R&D LIMITEDInventors: Sean CONNOLLY, Anthony HAVERN, James MCADAM, Gerard MCHUGH
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Publication number: 20030070856Abstract: An articulated forklift truck for use in narrow aisles comprises a front chassis section 10 having a first pair of ground-engaging wheels 20 and a rear chassis section 12 having a second pair of ground-engaging wheels 22. The front chassis section 10 carries a mast 16 and lift forks 18 and is pivoted to the rear chassis section 12 about a substantially vertical axis 14 to allow the truck to be steered. All four wheels 20, 22 are driven individually by respective hydrostatic motors 24, 26.Type: ApplicationFiled: October 17, 2001Publication date: April 17, 2003Inventors: Gerard McHugh, Gerard Harte, Joseph O'Brien, Martin McVicar, Robert Moffat
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Patent number: 6382340Abstract: A drive controller for a hydraulic drive system, a three wheeled vehicle having a pair of transversely arranged in line of drive shaft assemblies and a single wheel drive shaft assembly each assembly including a drive unit having two separate drives and has for series operation secondary hydraulic feed lines between one of the drives of the single drive units and one of the drives of each transverse drive unit. A pressure release valve is provided in each secondary line which valve is fed through a non-return valve.Type: GrantFiled: November 27, 1998Date of Patent: May 7, 2002Assignee: Moffett Research and Development LimitedInventors: Cathal McKenna, Eric O'Keeffe, Andrew William Wylie, Paul Patrick Quinn, Gerard McHugh, Seamus Murchan, Martin Damien McVicar, Gerard Harte
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Patent number: 6269901Abstract: A hydraulic drive system incorporating a hydraulic pump for three wheeled vehicles such as “piggy back” forklifts in which there are at least two separate but linked drives forming one drive unit for each of the wheels and each drive has a separate input and output. Valving is provided to provide both parallel and series operation of the system for optimum torque, speed and anti skid operation. In one preferred way of carrying out the invention a single drive unit feeds one of the drives of each of the other drives. The hydraulic pump feeds the single drive unit and one of the drives of the other transverse drive units. By-pass diverter valves are fitted across the drives of the transverse drive units.Type: GrantFiled: June 27, 1997Date of Patent: August 7, 2001Assignee: Moffett Research and Development LimitedInventors: Robert Moffett, Carol Moffett, James McAdam, Paul Quinn, Gerard McHugh, Gerard Harte, Andrew Wylie, Martin McVicar, Thomas Cadden
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Patent number: 6059330Abstract: A crash bar assembly for a vehicle having an auxiliary equipment carrying mode with, for example, a forklift extending beyond its rearmost portion. The impact absorbing bar forming part of the assembly is movable outwardly to adjacent the rearmost end of the forklift on bars in sockets. A forklift may have a crash bar assembly mounted on itself.Type: GrantFiled: May 30, 1997Date of Patent: May 9, 2000Assignee: Moffett Research and Development LimitedInventors: Robert Moffett, Carol Moffett, James McAdam, Paul Quinn, Gerard McHugh, Gerard Harte, Andrew Wylie, Martin McVicar, Thomas Cadden
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Patent number: 5749695Abstract: A universal forklift truck mounting frame (1) for fitting at a rear end of a carrier vehicle chassis has a composite base support framework. The base support framework has a rear support beam (8) and a front support beam (20) interconnected by a pair of spaced-apart hanger plates (5). Each hanger plate (5) has a flanged upper end (6) to provide a laterally extending chassis engaging surface. A wheel rest plate (9) is mounted at each end of the rear support beam (8). A pair of fork support sleeves (18), each for engagement with a fork of a forklift truck are mounted on the support framework between and substantially parallel to the hanger plates (5). A crash bar (10) is mounted at a rear end of the hanger plates (5).Type: GrantFiled: May 30, 1997Date of Patent: May 12, 1998Assignee: Moffett Research and Development LimitedInventors: Robert Moffett, Carol Moffett, James McAdam, Paul Quinn, Gerard McHugh, Gerard Harte, Andrew Wylie, Martin McVicar, Thomas Cadden
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Patent number: D749149Type: GrantFiled: December 19, 2014Date of Patent: February 9, 2016Assignee: Multihog LimitedInventors: James McAdam, Gerard McHugh, Daniel Patrick Begley
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Patent number: D749151Type: GrantFiled: October 7, 2014Date of Patent: February 9, 2016Assignee: Multihog LimitedInventors: James McAdam, Gerard McHugh
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Patent number: D749649Type: GrantFiled: December 19, 2014Date of Patent: February 16, 2016Assignee: Multihog LimitedInventors: James McAdam, Gerard McHugh, Daniel Patrick Begley
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Patent number: D749650Type: GrantFiled: October 7, 2014Date of Patent: February 16, 2016Assignee: Multihog LimitedInventors: James McAdam, Gerard McHugh