Patents by Inventor John Wright Porterfield

John Wright Porterfield 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).

  • Spring-collet mechanism for activating a fire extinguisher
    Patent number: 10870026
    Abstract: A method of actuating an extinguisher system may comprise retaining a broadhead cutter in close proximity to a burst disc surface, receiving an impulse signal, actuating a spring release mechanism in response to receiving the impulse signal, driving a cutter shaft towards the burst disc surface in response to actuation, and piercing the burst disc surface via the broadhead cutter coupled to the cutter shaft.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: December 22, 2020
    Assignee: Kidde Technologies, Inc.
    Inventors: David Frasure, John Wright Porterfield
  • SPRING-COLLET MECHANISM FOR ACTIVATING A FIRE EXTINGUISHER
    Publication number: 20180085612
    Abstract: A method of actuating an extinguisher system may comprise retaining a broadhead cutter in close proximity to a burst disc surface, receiving an impulse signal, actuating a spring release mechanism in response to receiving the impulse signal, driving a cutter shaft towards the burst disc surface in response to actuation, and piercing the burst disc surface via the broadhead cutter coupled to the cutter shaft.
    Type: Application
    Filed: December 1, 2017
    Publication date: March 29, 2018
    Applicant: Kidde Technologies, Inc.
    Inventors: David Frasure, John Wright Porterfield
  • Spring-collet mechanism for activating a fire extinguisher
    Patent number: 9861846
    Abstract: The present disclosure relates to a broadhead cutter activation mechanism and system inside of a fire extinguisher. The broadhead cutter device may be attached to a cutter shaft which is driven downward when the elastic potential energy is released form a spring system. The broadhead cutter device may be configured to pierce and open a burst disc to release the flow of an extinguishing agent under pressure.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: January 9, 2018
    Assignee: Kidde Technologies, Inc.
    Inventors: David Frasure, John Wright Porterfield
  • SPRING-COLLET MECHANISM FOR ACTIVATING A FIRE EXTINGUISHER
    Publication number: 20160213963
    Abstract: The present disclosure relates to a broadhead cutter activation mechanism and system inside of a fire extinguisher. The broadhead cutter device may be attached to a cutter shaft which is driven downward when the elastic potential energy is released form a spring system. The broadhead cutter device may be configured to pierce and open a burst disc to release the flow of an extinguishing agent under pressure.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 28, 2016
    Applicant: KIDDE TECHNOLOGIES, INC.
    Inventors: David Frasure, John Wright Porterfield
  • THREADED INTERFACES
    Publication number: 20140319153
    Abstract: A threaded interface includes a male threaded body and a female threaded body. The male threaded body includes a threaded section with external threads and a seal section with a plurality of o-rings seated circumferentially around the threaded body. The female threaded body includes a threaded section with internal threads and a seal section. The seal section of the female threaded body sealingly engages the o-rings of the seal section of the mail threaded body. A pressure vessel and a pressure vessel assembly for an automatic fire extinguishing system incorporating the threaded interface are also disclosed.
    Type: Application
    Filed: April 26, 2013
    Publication date: October 30, 2014
    Applicant: KIDDE TECHNOLOGIES, INC.
    Inventors: John Wright Porterfield, Daniel Ray MacLachlan