Patents by Inventor David Neal Mulligan

David Neal Mulligan 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: 20130078067
    Abstract: Embodiments include a loading rack apparatus mountable on a vehicle having a hoist motor, an extendable horizontal trolley to permit a load to be lifted with the hoist, moved horizontally into a vehicle, and lowered. A variety of embodiment trolley drive mechanisms are disclosed including but not limited to a rack-and-pinion means, belt drive means, and a lead screw means. A control means prevents trolley and hoist motor overcurrent. The control means includes a plurality of safety features including a tilt detection means to avoid loading under unsafe conditions and a pressure sensitive switch to halt trolley movement if the trolley contacts an object or person. A DC motor control means provides button control for trolley and hoist motors and emergency cut off. The top surface is shaped to define a surface for items. An arcuate embodiment crossbar member permits more stable positioning of items on the apparatus's topmost surface. A method for safely moving a load is disclosed.
    Type: Application
    Filed: October 24, 2012
    Publication date: March 28, 2013
    Inventors: Edward P. Owens, Jeffery S. Fine, Joseph P. Barrus, David Neal Mulligan
  • Patent number: 8322967
    Abstract: Embodiments include a loading rack apparatus mountable on a vehicle having a hoist motor, an extendable horizontal trolley to permit a load to be lifted with the hoist, moved horizontally into a vehicle, and lowered. A variety of embodiment trolley drive mechanisms are disclosed including but not limited to a lead screw trolley drive. An arcuate embodiment crossbar member permits more stable positioning of items on the apparatus's topmost surface. A method for safely moving a load is disclosed.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: December 4, 2012
    Assignee: Clearline Distribution Inc.
    Inventors: Edward P. Owens, Jeffery S. Fine, Joseph P. Barrus, David Neal Mulligan
  • Publication number: 20120217216
    Abstract: A multi-use vehicle mounted loading rack system adapted to safely lift and move loads onto and off of a truck. The system includes a support which rests on bed rails which rest on a truck bed, a horizontal member, a trolley which is reversibly extendable relative to the horizontal member, a hoist mounted on the trolley, and an electrical control system including a tilt sensor and other safety features.
    Type: Application
    Filed: February 25, 2011
    Publication date: August 30, 2012
    Applicant: STREAM LINE HOLDINGS, S.A.
    Inventors: Edward P. Owens, Joseph P. Barrus, David Neal Mulligan
  • Publication number: 20100183413
    Abstract: Embodiments include a loading rack apparatus mountable on a vehicle having a hoist motor, an extendable horizontal trolley to permit a load to be lifted with the hoist, moved horizontally into a vehicle, and lowered. A variety of embodiment trolley drive mechanisms are disclosed including but not limited to a rack-and-pinion means, belt drive means, and a lead screw means. A control means prevents trolley and hoist motor overcurrent. The control means includes a plurality of safety features including a tilt detection means to avoid loading under unsafe conditions and a pressure sensitive switch to halt trolley movement if the trolley contacts an object or person. A DC motor control means provides button control for trolley and hoist motors and emergency cut off. The top surface is shaped to define a surface for items. An arcuate embodiment crossbar member permits more stable positioning of items on the apparatus's topmost surface. A method for safely moving a load is disclosed.
    Type: Application
    Filed: January 20, 2010
    Publication date: July 22, 2010
    Inventors: Edward P. Owens, Jeffery S. Fine, Joseph P. Barrus, David Neal Mulligan
  • Patent number: 5787864
    Abstract: A hydrogen and natural gas fuel mixture for internal combustion engines is provided for vehicle engines such as those used in standard production engines for automobiles, trains and lawn mowers. The gaseous fuel for operating a vehicle combustion engines includes approximately 21 to 50% Hydrogen and the rest natural gas constituents such as combinations of Methane, Carbon Dioxide, Nitrogen, Ethane, Propane, Iso-Butane, N-Butane, Iso Pentane, N-Pentane, and Hexanes Plus. A fuel mixture of approximately 28 to 36 percent Hydrogen and a air fuel equivalence ratio of approximately 0.625 is an extreme lean burn condition that yields hydrocarbon emission levels of less than approximately 104 ppm(0.84 hm/hp hr.). Current internal combustion engines that are in mass production can take this alternative fuel without any substantial modifications to their systems. This alternative fuel is lean burning and emits emissions that are below current legal standards.
    Type: Grant
    Filed: December 21, 1996
    Date of Patent: August 4, 1998
    Assignee: University of Central Florida
    Inventors: Robert Kirk Collier, Jr., Robert Louis Hoekstra, David Neal Mulligan, Douglas Edward Hahn
  • Patent number: 5666923
    Abstract: A hydrogen and natural gas fuel mixture for internal combustion engines is provided for vehicle engines such as those used in standard production engines for automobiles, trains and lawn mowers. The gaseous fuel for operating a vehicle combustion engines includes approximately 21 to 50% Hydrogen and the rest natural gas constituents such as combinations of Methane, Carbon Dioxide, Nitrogen, Ethane, Propane, Iso-Butane, N-Butane, Iso Pentane, N-Pentane, and Hexanes Plus. A fuel mixture of approximately 28 to 36 percent Hydrogen and a air fuel equivalence ratio of approximately 0.625 is an extreme lean burn condition that yields hydrocarbon emission levels of less than approximately 104 ppm (0.84 hm/hp hr.). Current internal combustion engines that are in mass production can take this alternative fuel without any substantial modifications to their systems. This alternative fuel is lean burning and emits emissions that are below current legal standards.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: September 16, 1997
    Assignee: University of Central Florida
    Inventors: Robert Kirk Collier, Jr., Robert Louis Hoekstra, David Neal Mulligan, Douglas Edward Hahn
  • Patent number: 5660602
    Abstract: A fuel mixture is disclosed. In a preferred embodiment, an alternative gaseous fuel for operating a combustion engine includes approximately 21 to 50% Hydrogen and the rest natural gas constituants such as combinations of Methane, Carbon Dioxide, Nitrogen, Ethane, Propane, Iso-Butane, N-Butane, Iso Pentane, N-Pentane, and Hexanes Plus. Current production engines without any substantial modifications can take this alternative fuel. This alternative fuel is lean burning and emits emissions that are below current legal standards.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: August 26, 1997
    Assignee: University of Central Florida
    Inventors: Robert Kirk Collier, Jr., Robert Louis Hoekstra, David Neal Mulligan, Douglas Edward Hahn
  • Patent number: D662680
    Type: Grant
    Filed: June 5, 2011
    Date of Patent: June 26, 2012
    Inventors: Edward P. Owens, David Neal Mulligan