4. Refrigeration
  5. Refrigeration producer
  6. Compressor-condenser-evaporator circuit

Ludwig Ludin

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Bearing lubricated with water

Lubrication – Systems – For chassis lubrication
Patent

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Ceramic step bearing in a centrifugal pump

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Thread or shank structure
Patent

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Heat transfer pump

Heat exchange – With agitating or stirring structure
Patent

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Hot water priming device

Stoves and furnaces – Liquid heater – Boiler receiving hot liquid or steam from stove or furnace
Patent

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Pressureless large-area heating system

Heating systems – Heated floor
Patent

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Profile ID: LFUS-PAI-P-784909

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