Patents by Inventor Anthony DUFF

Anthony DUFF 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: 11040591
    Abstract: 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: Grant
    Filed: December 7, 2016
    Date of Patent: June 22, 2021
    Assignee: MULTIHOG R&D LIMITED
    Inventors: James McAdam, Gerard McHugh, Anthony Duff, Dallan McHugh, Daniel McElchar, Samuel Hampshire
  • Patent number: 10953739
    Abstract: 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: Grant
    Filed: November 3, 2016
    Date of Patent: March 23, 2021
    Assignee: MULTIHOG R&D LIMITED
    Inventors: James Mcadam, Gerard Mchugh, Anthony Duff, Dallan Mchugh, Daniel Mcelchar, Samuel Hampshire
  • Patent number: 10939602
    Abstract: 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: Grant
    Filed: December 7, 2016
    Date of Patent: March 9, 2021
    Assignee: MULTIHOG R&D LIMITED
    Inventors: James McAdam, Gerard McHugh, Anthony Duff, Dallan McHugh, Daniel McElchar, Samuel Hampshire
  • Publication number: 20180359902
    Abstract: 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: Application
    Filed: December 7, 2016
    Publication date: December 20, 2018
    Applicant: MULTIHOG R&D LIMITED
    Inventors: James MCADAM, Gerard MCHUGH, Anthony DUFF, Dallan MCHUGH, Daniel MCELCHAR, Samuel HAMPSHIRE
  • Publication number: 20180354337
    Abstract: 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: Application
    Filed: December 7, 2016
    Publication date: December 13, 2018
    Applicant: MULTIHOG R&D LIMITED
    Inventors: James MCADAM, Gerard MCHUGH, Anthony DUFF, Dallan MCHUGH, Daniel MCELCHAR, Samuel HAMPSHIRE
  • Publication number: 20180319268
    Abstract: 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: Application
    Filed: November 3, 2016
    Publication date: November 8, 2018
    Applicant: MULTIHOG R&D LIMITED
    Inventors: James MCADAM, Gerard MCHUGH, Anthony DUFF, Dallan MCHUGH, Daniel MCELCHAR, Samuel HAMPSHIRE
  • Publication number: 20100248397
    Abstract: A susceptor configured to be coupled to a material processing system is described. The susceptor comprises a substrate support comprising a central portion and an edge portion, wherein the central portion has a support surface configured to receive and support a substrate, and the edge portion extends beyond a peripheral edge of the substrate. The susceptor further comprises an edge reflector coupled to the edge portion of the substrate support and configured to partially or fully shield the peripheral edge of the substrate from radiative exchange with an outer region of the material processing system.
    Type: Application
    Filed: March 26, 2009
    Publication date: September 30, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Danny NEWMAN, Ronald NASMAN, Richard Anthony DUFF, III