Patents by Inventor Francis Petersen

Francis Petersen 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).

  • Fire sprinkler systems
    Patent number: 6868916
    Abstract: A fire sprinkler formed by an injection molding process is provided comprising a molded plastic body portion made of an injection molded plastic having a substantially hollow central portion for allowing water to pass therethrough, the hollow central portion extending from a distal end to a proximate end of the molded plastic body, a diffuser head portion located in the vicinity of the distal end of the hollow central portion, a sealing member made of an injection molded elastomeric material in proximity to the hollow central portion, and a link portion. When the link reaches a predetermined temperature the link portion is activated to start the flow of water out of the sprinkler.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: March 22, 2005
    Assignee: Phillips Plastics Corporation
    Inventor: Francis Petersen
  • Sprinkler systems
    Publication number: 20040055763
    Abstract: A sprinkler system formed by an injection molding process is provided, as well as a device to install, remove and/or maintain the sprinkler system. The sprinkler system includes a sprinkler having a body portion defining a substantially hollow central portion for allowing water to pass therethrough. The hollow central portion extends from a distal end of the body portion to a proximate end of the body portion. The sprinkler system also includes a housing connected to the sprinkler. The housing includes at least one outer wall and a cover portion transverse with the at least one outer wall which defines an interior space. The sprinkler can be at least partially located within the interior space. Also disclosed is a device for maintaining a sprinkler system.
    Type: Application
    Filed: July 7, 2003
    Publication date: March 25, 2004
    Applicant: PHILLIPS PLASTICS CORPORATION
    Inventors: Francis Petersen, Richard P. Manahan
  • Fire sprinkler systems
    Publication number: 20020134557
    Abstract: A fire sprinkler formed by an injection molding process is provided comprising a molded plastic body portion made of an injection molded plastic having a substantially hollow central portion for allowing water to pass therethrough, the hollow central portion extending from a distal end to a proximate end of the molded plastic body, a diffuser head portion located in the vicinity of the distal end of the hollow central portion, a sealing member made of an injection molded elastomeric material in proximity to the hollow central portion, and a link portion. When the link reaches a predetermined temperature the link portion is activated to start the flow of water out of the sprinkler.
    Type: Application
    Filed: March 25, 2002
    Publication date: September 26, 2002
    Applicant: Phillips Plastics Corporation
    Inventor: Francis Petersen