Patents by Inventor John Plummer

John Plummer 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).

  • Antitheft parcel delivery door system
    Patent number: 11369223
    Abstract: An antitheft parcel delivery door system for a facility including a door with a door opening; a weather resistant exterior cover attached to a first door face, moveably positioned over the opening; parcel drum support bracket, moveable arm and rotating parcel drum with parcel drum opening, and cam assembly revolving the rotating parcel drum in the door opening, the cam assembly rotating the parcel drum simultaneously while the weather resistant exterior cover is opened and closed, enabling the rotating parcel drum to receive a parcel then counter revolve in a second direction of rotation to deposit the parcel in a facility interior space; and a protective interior cover with opening attached to a second door face enabling a parcel to drop safely into the facility interior space while preventing unwanted facility access, theft of the parcel, human harm and animal harm from contact with the rotating parcel drum and the cam assembly.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: June 28, 2022
    Assignee: GLASSCRAFT DOOR COMPANY
    Inventor: John Plummer
  • ANTITHEFT PARCEL DELIVERY DOOR SYSTEM
    Publication number: 20210177182
    Abstract: An antitheft parcel delivery door system for a facility including a door with a door opening; a weather resistant exterior cover attached to a first door face, moveably positioned over the opening; parcel drum support bracket, moveable arm and rotating parcel drum with parcel drum opening, and cam assembly revolving the rotating parcel drum in the door opening, the cam assembly rotating the parcel drum simultaneously while the weather resistant exterior cover is opened and closed, enabling the rotating parcel drum to receive a parcel then counter revolve in a second direction of rotation to deposit the parcel in a facility interior space; and a protective interior cover with opening attached to a second door face enabling a parcel to drop safely into the facility interior space while preventing unwanted facility access, theft of the parcel, human harm and animal harm from contact with the rotating parcel drum and the cam assembly.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 17, 2021
    Inventor: John Plummer
  • Thermally insulating syntactic foam composition
    Patent number: 6284809
    Abstract: A syntactic foam composition is formed from a resin binder containing microspheres and minispheres and having a thermal conductivity less than 0.120 watts/meter° K.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: September 4, 2001
    Assignee: Emerson & Cuming Composite Materials Inc.
    Inventors: John Plummer, Michael Toupin, James Yeh