4. Furnishings
  5. Furniture, freestanding support, or frame therefor
  6. Element

John W. Duffy

Inventor

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Chair

Furnishings – Furniture – freestanding support – or frame therefor – Element
Patent

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Chair arm

Furnishings – Furniture – freestanding support – or frame therefor – Element
Patent

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Control regulator having a rolling diaphragm

Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent

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Gas level monitoring system and gas flow rate sensor used...

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

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High-low pressure pilot

Fluid handling – Pressure modulating relays or followers – Plural series units
Patent

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Profile ID: LFUS-PAI-P-295061

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