Patents by Inventor Daniel Pritchard

Daniel Pritchard 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: 11781520
    Abstract: An improved method of lifting fluid using the difference between atmospheric or higher boosted pressure and fluid vapor or vacuum pressure applied to a series of chambers with a movable plate that divides each into variable volumes, and comprises one stage of the system. Combinations of pressures in the chambers between the movable plates lift the fluid to a height where the fluid column base pressure equals atmospheric or boosted pressure less friction and mass losses. A vertical array of stages, each lifting fluid from the stage below it, allows fluid to be lifted to any height, limited only by structure or geographic elevation. Further; operating pressures are tapped from the top and bottom of a standpipe filled with static fluid, pressure changes are made when the volumes are zero, and the sum of the volume receiving fluid and volume delivering the fluid are constant, making the system closed. Once raised, the fluid may be released for it's end use and more particularly; through a power generator.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: October 10, 2023
    Inventor: Daniel Pritchard Swift
  • Publication number: 20230094079
    Abstract: A system for measuring snowfall comprising: a pressure sensor disposed beneath the surface of an inland body of water located within a region of interest; and a data logger operably connected to the pressure sensor, the data logger being arranged to receive and log data from the pressure sensor.
    Type: Application
    Filed: February 18, 2021
    Publication date: March 30, 2023
    Applicant: UNITED KINGDOM RESEARCH AND INNOVATION
    Inventor: Hamish Daniel PRITCHARD
  • Publication number: 20210332786
    Abstract: An improved method of lifting fluid using the difference between atmospheric or higher boosted pressure and fluid vapor or vacuum pressure applied to a series of chambers with a movable plate that divides each into variable volumes, and comprises one stage of the system. Combinations of pressures in the chambers between the movable plates lift the fluid to a height where the fluid column base pressure equals atmospheric or boosted pressure less friction and mass losses. A vertical array of stages, each lifting fluid from the stage below it, allows fluid to be lifted to any height, limited only by structure or geographic elevation. Further; operating pressures are tapped from the top and bottom of a standpipe filled with static fluid, pressure changes are made when the volumes are zero, and the sum of the volume receiving fluid and volume delivering the fluid are constant, making the system closed. Once raised, the fluid may be released for it's end use and more particularly; through a power generator.
    Type: Application
    Filed: April 23, 2020
    Publication date: October 28, 2021
    Inventor: Daniel Pritchard Swift
  • Patent number: D347999
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: June 21, 1994
    Assignee: Stephen Gould Paper Company, Inc.
    Inventors: Daniel Pritchard, Richard DeVincent