4. Metal deforming
  5. By use of closed-die and coacting work-forcer
  6. Forcing work into or within closed die; e.g., forging

Marvin G. Combes

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Apparatus and method for forming cylindrical valve hubs

Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Patent

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Cylindrical gate valve body

Valves and valve actuation – Reciprocating valve – Gate
Patent

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One piece seat ring with O-ring seal

Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve
Patent

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Orifice meter with replacable orifice disc

Measuring and testing – Volume or rate of flow – Using differential pressure
Patent

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Profile ID: LFUS-PAI-P-1148327

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