JOHN C HARRINGTON
Engineering in Medfield, MA
License number
Massachusetts 32609
Issued Date
Jan 24, 1986
Expiration Date
Jun 30, 2018
Type
Fire Protection Engineer
Address
Address
Medfield, MA 02052
Professional information
Corrosion Resistant Sprinklers, Nozzles, And Related Fire Protection Components And Systems
US Patent:
2008030, Dec 18, 2008
Filed:
Dec 7, 2007
Appl. No.:
12/000060
Inventors:
Paul Su - East Setauket NY, US
John Harrington - Medfield MA, US
John Harrington - Medfield MA, US
Assignee:
FM Global Technologies, LLC - Johnston RI
International Classification:
A62C 37/08
US Classification:
169037000, 239522000
Abstract:
A frame of a sprinkler or nozzle for use in a corrosive service environment. The frame includes a corrosion resistant metal having a passive oxide film that is chemically stable in the service environment. Alternatively, the frame includes a polymer that is inert in the service environment.
Combined Plug And Sealing Ring For Sprinkler Nozzle And Related Methods
US Patent:
8607886, Dec 17, 2013
Filed:
May 25, 2011
Appl. No.:
13/067335
Inventors:
John Harrington - Medfield MA, US
Paul Po-Cheng Su - East Setauket NY, US
David Fuller - Millville MA, US
Paul Po-Cheng Su - East Setauket NY, US
David Fuller - Millville MA, US
Assignee:
FM Global Technologies, LLC - Johnston RI
International Classification:
A62C 37/08, B05B 1/34
US Classification:
169 37, 169 38, 169 39, 169 41, 239518, 239523, 239524
Abstract:
A combined plug and sealing ring for a sprinkler nozzle includes a nozzle plug having a substantially cylindrical portion adapted to engage within a nozzle orifice of a sprinkler nozzle, and a cap overlaying the substantially cylindrical portion. A sealing ring is adapted to seat onto a threaded pipe fitting portion of the sprinkler nozzle. A leash interconnects the nozzle plug and the sealing ring. A combined plug and sealing ring in combination with a sprinkler nozzle, and a method of installing a sprinkler nozzle in a highly corrosive or extremely corrosive environment are also disclosed.