Patents by Inventor Jeffrey S. Armfield

Jeffrey S. Armfield 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: 20200115199
    Abstract: A modular powered hoist design comprises: 1) a multifunctional baseplate, which forms a foundation of the powered hoist design and comprises part of a guide system for a lifting media, and 2) an integrated lift/guide assembly, securing a liftwheel therein, that is attachable to the baseplate through attachment features formed within the baseplate. Embodiments allow for different components of a powered hoist to be interchanged in the case of material incompatibility or to provide higher guide performance (such as accommodating different safety factors). Moreover, in manufacturing, embodiments allow for the use of overlapping product parts across different powered hoist product designs, thereby reducing overhead-related costs.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 16, 2020
    Inventor: Jeffrey S. Armfield
  • Publication number: 20200115198
    Abstract: A modular powered hoist design comprises: 1) a multifunctional baseplate, which forms a foundation of the powered hoist design and comprises part of a guide system for a lifting media, and 2) an integrated lift/guide assembly, securing a liftwheel therein, that is attachable to the baseplate through attachment features formed within the baseplate. Embodiments allow for different components of a powered hoist to be interchanged in the case of material incompatibility or to provide higher guide performance (such as accommodating different safety factors). Moreover, in manufacturing, embodiments allow for the use of overlapping product parts across different powered hoist product designs, thereby reducing overhead-related costs.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 16, 2020
    Inventor: Jeffrey S. Armfield
  • Patent number: 8844669
    Abstract: A modular portal wheel end system for connection to a plurality of different axles for vehicles. The portal wheel end system includes a housing configure to be selectively coupled with any one of the plurality of different axles. A plurality of input gears are configured to be interchangeably connected to the housing about a first rotational axis. A plurality of output gears are configured to be interchangeably connected to the housing about a second rotational axis offset from the first rotational axis. Each of the gears having a different predetermined width along their respective axis. The housing includes an inner portion at least partially supporting the input and output gears and an outer ring coupled to the inner portion with the outer ring having a width corresponding to the predetermined width of the input and output gears to define a cavity surrounding the input and output gears.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: September 30, 2014
    Assignee: Axletech International IP Holdings, LLC
    Inventor: Jeffrey S. Armfield
  • Publication number: 20120181850
    Abstract: A modular portal wheel end system for connection to a plurality of different axles for vehicles. The portal wheel end system includes a housing configure to be selectively coupled with any one of the plurality of different axles. A plurality of input gears are configured to be interchangeably connected to the housing about a first rotational axis. A plurality of output gears are configured to be interchangeably connected to the housing about a second rotational axis offset from the first rotational axis. Each of the gears having a different predetermined width along their respective axis. The housing includes an inner portion at least partially supporting the input and output gears and an outer ring coupled to the inner portion with the outer ring having a width corresponding to the predetermined width of the input and output gears to define a cavity surrounding the input and output gears.
    Type: Application
    Filed: February 21, 2012
    Publication date: July 19, 2012
    Inventor: Jeffrey S. Armfield
  • Patent number: 8118133
    Abstract: A modular portal wheel end system allows for connection of a portal wheel end to any of a plurality of differently configured axles for vehicles. The portal wheel end includes a housing that houses an input gear and an output gear. The input gear is coupled to the axle to which the portal wheel end is connected. A wheel hub is coupled to the output gear. A plurality of adapter brackets are each configured to be interchangeably connected to the housing and the axle. Each adapter bracket has a different predetermined configuration for connection to a separate one of the differently configured axles. The portal wheel end system allows the same housing, input gear, output gear, and wheel hub to be connected to any of the differently configured axles with the use of the appropriate adapter bracket.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: February 21, 2012
    Assignee: Axletech International IP Holdings, LLC
    Inventor: Jeffrey S. Armfield
  • Publication number: 20100007198
    Abstract: A modular portal wheel end system allows for connection of a portal wheel end to any of a plurality of differently configured axles for vehicles. The portal wheel end includes a housing that houses an input gear and an output gear. The input gear is coupled to the axle to which the portal wheel end is connected. A wheel hub is coupled to the output gear. A plurality of adapter brackets are each configured to be interchangeably connected to the housing and the axle. Each adapter bracket has a different predetermined configuration for connection to a separate one of the differently configured axles. The portal wheel end system allows the same housing, input gear, output gear, and wheel hub to be connected to any of the differently configured axles with the use of the appropriate adapter bracket.
    Type: Application
    Filed: July 10, 2009
    Publication date: January 14, 2010
    Inventor: Jeffrey S. Armfield
  • Patent number: 6422002
    Abstract: A method for non-thermal plasma aftertreatment of exhaust gases the method comprising the steps of providing short risetime, high frequency, high power bursts of low-duty factor microwaves sufficient to generate a plasma discharge and passing a gas to be treated through the discharge so as to cause dissociative reduction of the exhaust gases and enhanced catalyst reactivity through application of the pulsed microwave fields directly to the catalyst material sufficient to cause a polarizability catastrophe and enhanced heating of the metal crystallite particles of the catalyst, and in the presence or absence of the plasma. The invention also includes a reactor for aftertreatment of exhaust gases.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 23, 2002
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: John H. Whealton, Gregory R. Hanson, John M. Storey, Richard J. Raridon, Jeffrey S. Armfield, Timothy S. Bigelow, Ronald L. Graves
  • Patent number: 6190507
    Abstract: A method for non-thermal plasma aftertreatment of exhaust gases the method comprising the steps of providing short risetime (about 40 ps), high frequency (about 5G hz), high power bursts of low-duty factor microwaves sufficient to generate a dielectric barrier discharge and passing a gas to treated through the discharge so as to cause dissociative reduction of the exhaust gases. The invention also includes a reactor for generating the non-thermal plasma.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: February 20, 2001
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: John H. Whealton, Gregory R. Hanson, John M. Storey, Richard J. Raridon, Jeffrey S. Armfield, Timothy S. Bigelow, Ronald L. Graves
  • Patent number: 5699252
    Abstract: Methods are presented to remove from misfire/roughness measures both acceleration effects and those errors which are of a cyclical nature over the engine firing cycle. Included in the latter category are errors which repeat every revolution, e.g. tooth spacing errors resulting from manufacturing tolerances on a multitoothed wheel used to measure speed. Also included are errors arising from the cylinder by cylinder variations occurring in one firing cycle which would be essentially the same in neighboring firing cycles, e.g. mechanical and electrical tolerance effects that are cylinder based. These methods permit the correction in each cylinder measure of such cyclic errors on a cycle basis, i.e., after the completion of one or more of the cycles causing the error, or on a cylinder by cylinder basis, i.e., after the completion of the interval associated with an individual cylinder.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: December 16, 1997
    Assignee: Purdue Research Foundation
    Inventors: Stephen J. Citron, Jeffrey S. Armfield