US Patent No: 5,865,256

Number of patents in Portfolio can not be more than 2000

Deflectors for pendent-type fire protection sprinklers

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Importance

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Abstract

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A pendent-type fire protection sprinkler with a body defining an orifice and outlet for flow of fluid, and a deflector positioned coaxial with the outlet for impingement of fluid flow thereupon. The deflector has one or a combination of features for improved performance. For example, the deflector may have a frusto-conically shaped recess within a central area facing the sprinkler outlet, the recess defined by a surface slanted at a predetermined acute angle to the horizontal, with a plurality of holes or slots defined by the slanted surface, the recess being surrounded by an essentially flat outer area perpendicular to the sprinkler outlet axis. The deflector may have a bump, or other irregularity, on the sprinkler deflector inside surface opposed to the sprinkler outlet on each of the opposite tines in a plane perpendicular to a plane of the sprinkler frame arms. The deflector may have openings at about 45.degree. to the plane of the frame arms, the openings shaped with the width of each opening gradually decreasing towards the deflector periphery.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GRINNELL LLCCRANSTON, RI22

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pounder, Donald B North Kingstown, RI 16 215

Cited Art Landscape

Patent Info (Count) # Cites Year
 
CENTRAL SPRINKLER CORPORATION (1)
5,366,022 Extended coverage ceiling sprinklers and systems 49 1992
 
GRINNELL CORPORATION (1)
4,580,729 Sprinkler head with improved spray uniformity 58 1985
 
GRINNELL LLC (1)
5,392,993 Fire protection nozzle 26 1994
 
SENJU SPRINKLER CO., LTD. (1)
5,203,416 Sprinkler head 6 1991

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
TYCO FIRE PRODUCTS LP (18)
6,059,044 Fire protection sprinkler and deflector 43 1998
7,165,624 Early suppression fast response fire protection sprinkler 18 1999
7,201,234 Residential fire sprinkler 3 2004
8,353,356 Residential flat plate concealed sprinkler 2 2006
7,730,959 Early suppression fast response fire protection sprinkler 9 2007
7,658,231 Residential fire sprinkler 1 2007
8,122,969 Low pressure, extended coverage, fire protection sprinkler 1 2009
7,735,570 Early suppression fast response fire protection sprinkler 4 2009
7,766,091 Early suppression fast response fire protection sprinkler 3 2009
8,074,725 Residential pendent fire sprinkler 0 2010
8,186,448 Early suppression fast response fire protection sprinkler 1 2010
8,176,988 Early suppression fast response fire protection sprinkler 1 2010
8,528,653 Dry sprinkler 0 2010
8,469,112 Dry sprinkler 0 2010
8,746,356 Dry Sprinkler 0 2011
8,327,946 Dry sprinkler 0 2011
8,657,020 Low pressure, extended coverage, fire protection sprinkler 0 2012
8,485,270 Early suppression fast response fire protection sprinkler 0 2012
 
THE RELIABLE AUTOMATIC SPRINKLER CO., INC. (7)
6,276,460 Residental sprinkler arrangement 24 2000
6,446,732 VELO ECOH sprinkler arrangement 15 2000
6,554,077 Quick response adjustable automatic sprinkler arrangements 17 2001
6,516,893 Residential sprinkler arrangement 13 2001
7,624,812 Extended coverage, storage, automatic fire protection sprinkler 9 2006
7,343,980 Enhanced protection extended coverage pendent fire protection sprinkler 5 2006
8,172,001 Pendent residential fire protection sprinklers 1 2008
 
THE VIKING CORPORATION (7)
7,314,093 Fast response sprinkler assembly for a fire extinguishing system 4 2005
7,854,269 Sprinkler assembly 3 2006
D616062 Deflector for fire protection sprinkler 0 2009
D607084 Deflector for fire protection sprinkler 0 2009
8,376,061 Fire protection sprinkler 0 2009
D612450 Deflector for fire protection sprinkler 0 2009
D617415 Deflector for fire protection sprinkler 0 2010
 
CENTRAL SPRINKLER CORPORATION (2)
6,502,643 Low pressure, early suppression fast response sprinklers 24 1998
6,868,917 Low pressure, early suppression fast response sprinklers 20 2002
 
LG ELECTRONICS INC. (1)
7,172,413 Laundry dryer having gas combustion apparatus 2 2003
 
VICTAULIC COMPANY (1)
6,854,668 Extended coverage ordinary hazard sprinkler system 12 2002
 
Other [Check patent profile for assignment information] (2)
8,733,461 Fire sprinkler system and method of installation 0 2008
8,602,118 Fire sprinkler 0 2008

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