Patents by Inventor John David Plumadore

John David Plumadore 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).

  • Non-interruptible battery changing system
    Patent number: 6936376
    Abstract: A battery changing system having a battery chamber housing a first battery connected to a circuit, and receives a second, replacement battery which becomes connected to the circuit and displaces the first battery from the battery chamber as the second battery is being inserted, maintaining continuity of power to the circuit. Embodiments include a system which displaces the battery from the same side or opening in which the replacement battery is inserted, and a system which displaces the battery from another opening in the battery chamber.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: August 30, 2005
    Assignee: Vermont Medical, Inc.
    Inventor: John David Plumadore
  • Non-interruptible battery changing system
    Publication number: 20030170532
    Abstract: A battery changing system having a battery chamber housing a first battery connected to a circuit, and receives a second, replacement battery which becomes connected to the circuit and displaces the first battery from the battery chamber as the second battery is being inserted, maintaining continuity of power to the circuit. Embodiments include a system which displaces the battery from the same side or opening in which the replacement battery is inserted, and a system which displaces the battery from another opening in the battery chamber.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 11, 2003
    Applicant: Vermed, Inc.
    Inventor: John David Plumadore