Patents by Inventor William D. Buchanan

William D. Buchanan 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: 10563457
    Abstract: A hand-powered photovoltaic module hoist having a sled that slides along a ladder, and a pulley assembly mounted at the top of the ladder with a first cord to lift the sled and a second safety release cord to permit the sled to descend down the ladder. The sled is not attached to the ladder and the pulley assembly is a removable frame that is hung onto rungs of the ladder such that the hoist can quickly be installed on a standard ladder.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 18, 2020
    Assignee: SolarCity Corporation
    Inventors: Brian D. West, Benjamin T. Materna, William P. Buchanan, Kathryn A. Pesce, Dana K. Noyes
  • Publication number: 20190293039
    Abstract: A fluid injector assembly extending along a longitudinal axis comprising a housing, and an injector positioned within the housing, the injector comprising a injector body having an interior cavity, a plunger positioned within the interior cavity and comprising a plunger body, a fluid delivery passage along at least a portion of the plunger body, and a plunger tip positioned at a downstream end of the plunger body, the fluid delivery passage comprising a longitudinal passage and at least one internal swirl passage, and the internal swirl passage being angled relative to the longitudinal axis and extending from the longitudinal passage to an opening upstream of the plunger tip, and a nozzle positioned at a downstream end of the injector body and including at least one nozzle passage, fluid being delivered from an upstream end of the injector to the at least one nozzle passage through the fluid delivery passage.
    Type: Application
    Filed: May 16, 2016
    Publication date: September 26, 2019
    Inventors: Anthony Shaull, David L. Buchanan, Lester L. Peters, Bradlee J. Stroia, William D. Daniel
  • Publication number: 20090291212
    Abstract: Highly volatile MOCVD (Metal-Organic Chemical Vapor Deposition) precursors are disclosed comprising a complex between a fluoroalkoxide ligand and one or more alkali, alkaline earth, lanthanoids or yttrium metals and one or more donor molecules. In one example, the fluoroalkoxide ligand is perfluoro-tert-butoxide and the complex is a heterobimetallic complex. These MOCVD precursors are highly volatile, non-oligomeric, non-pyrophoric and can be synthesized with high yields. They are ideally suited for MOCVD applications because of their ability to vaporize at low temperatures and at atmospheric pressure thus enabling the deposition of a more uniform and homogeneous metal coating of known stoichiometry on to a substrate.
    Type: Application
    Filed: May 26, 2009
    Publication date: November 26, 2009
    Applicant: Syracuse University
    Inventors: William D. Buchanan, Karin Ruhlandt-Senge
  • Patent number: 7256516
    Abstract: A charging system for simultaneously charging the batteries of a plurality of battery powered vehicles. The charging includes one or more DC-DC power converters having one or more charging ports configured to plug into the batteries. The DC-DC power converters are each configured to selectively connect to more than one charging port to selectively provide for higher port power levels. The DC-DC power converters connect to an AC rectifier through a DC bus. The AC rectifier connects to an AC power source having a limited power rating. The AC charging system also has a controller that controls the operation of the DC-DC power converters such that the total power draw on the AC rectifier does not exceed the power rating. The system is further configured such that the DC-DC power converters can drain selected batteries to obtain power for charging other batteries, thus allowing for batteries to be cycled.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: August 14, 2007
    Assignee: Aerovironment Inc.
    Inventors: William D. Buchanan, Joseph F. Mohos, Wally E. Rippel
  • Publication number: 20040130292
    Abstract: A charging system for simultaneously charging the batteries of a plurality of battery powered vehicles. The charging includes one or more DC-DC power converters having one or more charging ports configured to plug into the batteries. The DC-DC power converters are each configured to selectively connect to more than one charging port to selectively provide for higher port power levels. The DC-DC power converters connect to an AC rectifier through a DC bus. The AC rectifier connects to an AC power source having a limited power rating. The AC charging system also has a controller that controls the operation of the DC-DC power converters such that the total power draw on the AC rectifier does not exceed the power rating. The system is further configured such that the DC-DC power converters can drain selected batteries to obtain power for charging other batteries, thus allowing for batteries to be cycled.
    Type: Application
    Filed: July 10, 2003
    Publication date: July 8, 2004
    Inventors: William D. Buchanan, Joseph F. Mohos, Wally E. Rippel
  • Publication number: 20020070705
    Abstract: A charging system for simultaneously charging the batteries of a plurality of battery powered vehicles. The charging includes one or more DC-DC power converters having one or more charging ports configured to plug into the batteries. The DC-DC power converters are each configured to selectively connect to more than one charging port to selectively provide for higher port power levels. The DC-DC power converters connect to an AC rectifier through a DC bus. The AC rectifier connects to an AC power source having a limited power rating. The AC charging system also has a controller that controls the operation of the DC-DC power converters such that the total power draw on the AC rectifier does not exceed the power rating. The system is further configured such that the DC-DC power converters can selected drain batteries to obtain power to charge other batteries, allowing for batteries to be cycled.
    Type: Application
    Filed: June 14, 2001
    Publication date: June 13, 2002
    Inventors: William D. Buchanan, Joseph F. Mohos