Fire Suppression Sprinkler and Deflector

A fire suppression sprinkler, said sprinkler comprising:

• a body surrounding a bore, said bore defining a flow axis arranged coaxially with said bore;
• first and second frame arms mounted on opposite sides of said body and extending therefrom in a direction along said flow axis, said frame arms defining a plane;
• a nose mounted on the ends of said frame arms, said nose being positioned coaxially with said flow axis;
• a deflector plate mounted on said nose and oriented transversely to said flow axis, said deflector plate having a periphery surrounding a center located on said flow axis, said deflector plate comprising:
• a plurality of slots of a first configuration extending from said periphery radially toward said center and terminating at a first distance from said center, at least two of said slots of said first configuration being disposed in said plane;
• at least four slots of a second configuration extending from said periphery radially toward said center and terminating at a second distance from said center, said slots of said second configuration being located about said periphery such that one of said slots of said second configuration is positioned adjacent to each side of each of said slots of said first configuration which are disposed in said plane;
• a plurality of slots of a third configuration extending from said periphery radially toward said center and terminating at a third distance from said center;
• wherein
• said second distance is less than any of said first or third distances.

An early suppression fast response fire suppression sprinkler, said sprinkler comprising:

• a body adapted for use in a pendent orientation, said body surrounding a bore, said bore defining a flow axis arranged coaxially with said bore, said bore defining a k factor of k=25.2 or greater;
• first and second frame arms mounted on opposite sides of said body and extending therefrom in a direction along said flow axis, said frame arms defining a plane;
• a plug removably mounted on said body between said frame arms and overlying said bore;
• a nose mounted on ends of said frame arms at a distance from said plug less than 1.0 inches, said nose being positioned coaxially with said flow axis;
• a deflector plate mounted on said nose and oriented transversely to said flow axis, said deflector plate having a periphery surrounding a center located on said flow axis, said deflector plate comprising:
• a plurality of first slots extending from said periphery radially toward said center and terminating at a first distance from said flow axis, at least two of said first slots being disposed in said plane;
• a plurality of second slots extending from said periphery radially toward said center and terminating at a second distance from said flow axis, said second slots being located about said periphery such that one of said second slots is positioned adjacent to each side of each of said first slots which are disposed in said plane;
• wherein
• said second distance is less than said first distance.