Patents by Inventor Daniel C. Roberts

Daniel C. Roberts 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: 20240099734
    Abstract: Apparatuses, capacitor arrays, and methods for generating therapeutic compressed acoustic waves (e.g., shock waves). In the apparatuses and at least some of the methods, a plurality of electrodes can disposed in a chamber that is defined by a housing and configured to be filled with liquid, and a plurality of capacitors can be electrically connected to the electrodes and can be carried by (e.g., physically coupled to) the housing. Voltage pulses can be applied simultaneously to the plurality of electrodes (e.g., to begin to vaporize and ionize portions of the liquid to provide at least one inter-electrode conductive path between the plurality of electrodes) and to the capacitors to charge the plurality of capacitors). The plurality of capacitors can be configured to, upon reaching a threshold charge, discharge to the plurality of electrodes (e.g.
    Type: Application
    Filed: November 8, 2023
    Publication date: March 28, 2024
    Inventors: Christopher C. Capelli, Michael Kishnevsky, Daniel Masse, John Summerson, David W. Robert, Walter Klemp, Robert Crowley
  • Publication number: 20110114305
    Abstract: An Improved Fluid well pumping system and method to produce the system. According to the system, it relates to ones that provide improved, low cost, efficient and low maintenance pumping systems for obtaining fluid from a source. It is envisioned that the systems will be used for removing oil, water, sludge, gaseous fluids, or leachates from shallow to medium depth wells (0 to 4000 feet depths). However, the invention has application for raising any fluids as needed above ground.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 19, 2011
    Inventors: Daniel C. Roberts, G Ronald Stoughton, James R. Wetzel
  • Patent number: 4724249
    Abstract: The invention is a rust proofing composition containing a copolymer in latex form derived from:(i) vinylidene chloride(ii) vinyl chloride; and(iii) one or more alkyl acrylates and/or alkyl metharcylates having from 1 to 12 carbon atoms is the alkyl group; anda chelating agent comprising pyrogallol, said pyrogallol being present in an amount between 0.5 and 5.0 percent by weight of said aqueous emulsion.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: February 9, 1988
    Assignee: Neutra Rust International Limited
    Inventor: Daniel C. Roberts