4. Pipe joints or couplings
  5. Frangible element
  6. Score line or groove

Carl E. Floren

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Corrosion resistance for fire hydrant stem safety coupling

Joints and connections – Distinct end coupler – Separate screw or pin-type connections
Patent

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Frangible coupling for barrel sections of a fire hydrant

Pipe joints or couplings – Frangible element – Score line or groove
Patent

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Method for forming a ball valve connection

Metal working – Method of mechanical manufacture – Valve or choke making
Patent

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Method for forming a ball valve connection and structure

Valves and valve actuation – Rotary valves – Ball valve
Patent

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Method of making a three-way fire hydrant

Metal founding – Process – Shaping a forming surface
Patent

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Profile ID: LFUS-PAI-P-12423

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