Patents by Inventor David R. Knowlton

David R. Knowlton 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: 20180036092
    Abstract: A package for a medical device includes a blister having a base and a plurality of walls extending from the base with the base and the walls defining a cavity for receiving the medical device. The blister includes a first thermoplastic polyurethane or a combination of the first thermoplastic polyurethane and polyethylene terephthalate glycol. The package also includes a lid disposed on the blister and at least partially covering the cavity. The lid has outer and inner surfaces and includes a high density polyethylene. The package further includes an insert disposed on and in direct contact with the inner surface of the lid and facing the cavity. The insert includes a second thermoplastic polyurethane for increasing puncture resistance of the lid from the medical device.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 8, 2018
    Inventors: David R. Knowlton, Daniel J. Shaw, JR., Jeffrey Ryan Masters, Michael Joseph King
  • Patent number: 4733702
    Abstract: A method and apparatus for forming and packaging, within a suitable container for the dispensing thereof, an unstable product produced by intimately mixing at least first and second ingredients, the resulting unstable product remaining stable following the mixing of the ingredients for a relatively short period of time under normal ambient conditions, the method including the steps of providing streams of the ingredients, intimately mixing the ingredients in a filling head, ejecting the mixture from the filling head into a container, and sealing the container prior to the elapse of the relatively short period of time.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: March 29, 1988
    Assignee: The Gillette Company
    Inventors: John Anderson, III, David R. Knowlton
  • Patent number: 4727914
    Abstract: A method and apparatus for forming and packaging, within a suitable container for the dispensing thereof, an unstable product produced by intimately mixing at least first and second ingredients, the resulting unstable product remaining stable following the mixing of the ingredients for a relatively short period of time under normal ambient conditions, the method including the steps of providing streams of the ingredients, intimately mixing the ingredients in a filling head, ejecting the mixture from the filling head into a container, and sealing the container prior to the elapse of the relatively short period of time.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: March 1, 1988
    Assignee: The Gillette Company
    Inventors: John Anderson, III, David R. Knowlton
  • Patent number: 4651503
    Abstract: A method and apparatus for forming and packaging, within a suitable container for the dispensing thereof, an unstable product produced by intimately mixing at least first and second ingredients, the resulting unstable product remaining stable following the mixing of the ingredients for a relatively short period of time under normal ambient conditions, the method including the steps of providing streams of the ingredients, intimately mixing the ingredients in a filling head, ejecting the mixture from the filling head into a container, and sealing the container prior to the elapse of the relatively short period of time.
    Type: Grant
    Filed: June 13, 1984
    Date of Patent: March 24, 1987
    Assignee: The Gillette Company
    Inventors: John Anderson, III, David R. Knowlton