Patents by Inventor David C. Parsons

David C. Parsons 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: 11946169
    Abstract: A process for making a spunmelt nonwoven web including the steps of providing a mixture of recycled polypropylene, extruding the recycled polypropylene mixture to form a molten recycled polypropylene mixture, filtering the molten recycled polypropylene mixture through a filter to form recycled polypropylene filtrate, dosing the recycled polypropylene filtrate into the spunmelt production line by an amount of 80% to 100% by weight, passing the recycled polypropylene filtrate through at least one spinneret of the spunmelt production line to form filaments at a spinning speed of greater than 1200 meters per minute, cooling and drawing the filaments, and depositing the filaments on a moving belt to form at least one layer of the spunmelt nonwoven web made up of 80% by 100% by weight of recycled polypropylene fibers.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: April 2, 2024
    Assignee: PFNONWOVENS LLC
    Inventors: Karthik Ramaratnam, John C. Parsons, David John Pung, Anna Elizabeth Macura, Eric Bryan Bond
  • Publication number: 20230038357
    Abstract: Cable storage drum-reels, methods and systems are provided for deploying and retracting at least one push-cable with a distally mounted camera into and out of a pipe or cavity for applications such as plumbing and underground utility location. In an exemplary embodiment, a cable storage drum may include a centrally mounted axially projecting hub, and a housing to removably receive and rotatably support the cable storage drum. The housing may include an inside portion, and an outside portion with a front face and a rear face. The front face has an opening and is sloped inward toward the inside portion of the drum allowing a push-cable to be directed as desired into the cable storage drum and around the drum-reel. One or more cable guide points may be included for providing additional directional guidance of the push-cable into the drum and onto the hub.
    Type: Application
    Filed: July 27, 2022
    Publication date: February 9, 2023
    Applicant: SeeScan, Inc.
    Inventors: Mark S. Olsson, David C. Parsons, Andrew P. Corvin, Alexander L. Warren
  • Publication number: 20220085592
    Abstract: Cable storage drum-reel and cable guide apparatus, methods, and systems are provided for deploying and retracting at least one push-cable with a distally mounted camera into and out of a pipe or cavity for applications such as plumbing and underground utility location. In an exemplary embodiment, a cable guide assembly may include a bracket, and one or more wear guides positioned with openings in the bracket. The one or more wear guides may include two spaced-apart wear guides each having an opening defining an inner diameter. In one embodiment, the spacing between the two wear guides may be a distance of three or more times the inner diameter of the wear guides.
    Type: Application
    Filed: August 9, 2021
    Publication date: March 17, 2022
    Inventors: Mark S. Olsson, David C. Parsons, Andrew P. Corvin, Alexander L. Warren