4. Fluid handling
  5. Removable valve head and seat unit
  6. Retained by bonnet or closure

David E. Griswold

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Automatic fluid flow control and strainer device

Fluid handling – Removable valve head and seat unit – Retained by bonnet or closure
Patent

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Backflow prevention apparatus

Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line
Patent

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Backflow prevention apparatus

Fluid handling – Back flow prevention by vacuum breaking – Air vent in liquid flow line
Patent

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Backflow prevention apparatus

Fluid handling – Self-proportioning or correlating systems – Supply and exhaust type
Patent

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Check valve

Fluid handling – Removable valve head and seat unit – Retained by bonnet or closure
Patent

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Profile ID: LFUS-PAI-P-141157

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