Patents by Inventor Alan Dewey

Alan Dewey 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).

  • Method for Supplying Fieldbus Communication and Power from a Handheld Maintenance Tool in a Hazardous Area Using a Single Lead Set
    Publication number: 20160299175
    Abstract: A connector assembly for a portable field device testing includes a two-wire communication line to provide communication between a handheld maintenance tool and a field device, a first two-prong plug to provide power and communication signals to the field device and a shunt plug to provide power to the field device using the two-wire communication line.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 13, 2016
    Inventors: Alan Dewey, Alden C. Russell, III, Roger Benson, Anthony Ferguson
  • Dual protocol handheld field maintenance tool with radio-frequency communication
    Publication number: 20060161393
    Abstract: A dual-protocol handheld field maintenance tool is provided with radio frequency communication. The radio frequency commination can be provided by virtue of an SDIO card inserted within an SDIO slot in the handheld field maintenance tool. A method of interacting with a process using a dual-protocol handheld field maintenance tool is also provided.
    Type: Application
    Filed: November 8, 2005
    Publication date: July 20, 2006
    Inventors: Martin Zielinski, Alan Dewey, Alden Russell
  • Field maintenance tool
    Publication number: 20050114086
    Abstract: An improved intrinsically safe field maintenance tool is provided. The tool is operable with process communication loops in accordance with a plurality of process industry standard protocols. Aspects of the invention include hardware features such as an infrared port; removable memory module; and an expansion memory module. Additional aspects of the invention include protocol-specific diagnostic methods executable with the improved intrinsically safe field maintenance tool.
    Type: Application
    Filed: December 9, 2004
    Publication date: May 26, 2005
    Applicant: Fisher-Rosemount Systems, Inc.
    Inventors: Martin Zielinski, Daniel Vande Vusse, Kun Yang, Alan Dewey, Alden Russell
  • Plug for and a handheld maintenance tool
    Patent number: D764329
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: August 23, 2016
    Assignee: FISHER-ROSEMOUNT SYSTEMS, INC.
    Inventors: Alan Dewey, Todd Mitchell Toepke, Tom Johnson