US2967084A — Process and apparatus for controlling water in a …

Claim 1

Independent Claim 202 words

IN A DRY CLEANING PROCESS OF THE TYPE WHEREIN GOODS ARE WASHED IN THE ROTATABLE DRUM OF A WASHER BY A DRY CLEANING SOLVENT COMPOSITION, AND SOLVENT COMPOSITION IS WITHDRAWN FROM THE WASHER, PUMPED THROUGH A FILTER AND RECIRCULATED TO THE WASHER IN A CONTINUOUS CIRCULATING PATH, AND SAID SOLVENT COMPOSITION INITIALLY CONTAINS A PREDETERMINED AMOUNT OF WATER WHICH IS LESS THAN THE WATER SATURATION VALUE FOR SAID COMPOSITION AND LESS THAN THE AMOUNT WHICH WOULD CAUSE UNDESIRABLE SHRINKAGE OF SAID GOODS, THE STEPS OF MAINTAINING THE WATER CONTENT OF SAID SOLVENT AT A DESIRED VALUE SUFFICIENT TO REMOVE WATER-SOLUBLE STAINS FROM SAID GOODS WITHOUT PRODUCING UNDESIRABLE SHRINKAGE THEREOF WHICH COMPRISE, WITHDRAWING A CONTINUOUS SAMPLE OF SAID CIRCULATING SOLVENT COMPOSITION, MIXING SAID SOLVENT COMPOSITION WITH A STREAM OF AIR TO EQUILIBRATE THE WATER CONTENT OF THE SOLVENT COMPOSITION AND THE AIR MIXED THEREWITH, SEPARATING THE EQUILIBRATED AIR FROM THE SOLVENT COMPOSITION, MEASURING THE RELATIVE HUMIDITY OF THE SEPARATED AIR, SUPPLYING WATER TO CIRCULATING SOLVENT COMPOSITION AND REGULATING THE SUPPLY OF WATER TO THE SOLVENT IN RESPONSE TO VIRIATIONS IN THE MEASURED RELATIVE HUMIDITY OF SAID SEPARATED AIR SO THAT THE WATER CONTENT OF SAID SOLVENT COMPOSITION IS MAINTAINED AT SAID DESIRED VALUE.

Claim 2

Dependent Claim 202 words

IN A DRY CLEANING PROCESS OF THE TYPE WHEREIN GOODS ARE WASHED IN THE ROTATABLE DRUM OF A WASHER BY A DRY CLEANING SOLVENT COMPOSITION, AND SOLVENT COMPOSITION IS WITHDRAWN FROM THE WASHER, PUMPED THROUGH A FILTER AND RECIRCULATED TO THE WASHER IN A CONTINUOUS CIRCULATING PATH, AND SAID SOLVENT COMPOSITION INITIALLY CONTAINS A PREDETERMINED AMOUNT OF WATER WHICH IS LESS THAN THE WATER SATURATION VALUE FOR SAID COMPOSITION AND LESS THAN THE AMOUNT WHICH WOULD CAUSE UNDESIRABLE SHRINKAGE OF SAID GOODS, THE STEPS OF MAINTAINING THE WATER CONTENT OF SAID SOLVENT AT A DESIRED VALUE SUFFICIENT TO REMOVE WATER-SOLUBLE STAINS FROM SAID GOODS WITHOUT PRODUCING UNDESIRABLE SHRINKAGE THEREOF WHICH COMPRISE, WITHDRAWING A CONTINUOUS SAMPLE OF SAID CIRCULATING SOLVENT COMPOSITION, MIXING SAID SOLVENT COMPOSITION WITH A STREAM OF AIR TO EQUILIBRATE THE WATER CONTENT OF THE SOLVENT COMPOSITION AND THE AIR MIXED THEREWITH, SEPARATING THE EQUILIBRATED AIR FROM THE SOLVENT COMPOSITION, MEASURING THE RELATIVE HUMIDITY OF THE SEPARATED AIR, SUPPLYING WATER TO CIRCULATING SOLVENT COMPOSITION AND REGULATING THE SUPPLY OF WATER TO THE SOLVENT IN RESPONSE TO VIRIATIONS IN THE MEASURED RELATIVE HUMIDITY OF SAID SEPARATED AIR SO THAT THE WATER CONTENT OF SAID SOLVENT COMPOSITION IS MAINTAINED AT SAID DESIRED VALUE.

Claim 3

Dependent Claim 185 words

IN A DRY CLEANING APPARATUS OF THE TYPE WHEREIN THE GOODS TO BE CLEANED ARE WASHED IN A ROTATABLE WASHING DRUM AND DRY CLEANING SOLVENT COMPOSITION IS CIRCULATED BY A PUMP THROUGH SAID DRUM AND A FILTER IN A CLOSED CIRCULATING PATH, APPARATUS FOR SUPPLYING A CONTROLLED AMOUNT OF WATER TO SAID SYSTEM COMPRISING, IN COMBINATION, WATER SUPPLY MEANS CONNECTED TO SAID PATH AND INCLUDING FLOWREGULATING MEANS FOR REGULATING THE FLOW OF WATER TO SAID PATH; A HUMIDITY MEASURING DEVICE, FLOW DIVERTING MEANS INTERCONNECTING SAID CIRCULATING PATH AND SAID MEASURING DEVICE TO DIVERT A SMALL STREAM OF THE CIRCULATING SOLVENT COMPOSITION TO SAID DEVICE, SAID HUMIDITY RESPONSIVE DEVICE COMPRISING MIXING MEANS FOR MIXING THE DIVERTED STREAM OF SOLVENT WITH A STREAM OF ATMOSPHERIC AIR TO EQUILIBRATE THE WATER CONTENTS OF THE SOLVENT AND AIR, A STEPARATING CHAMBER FOR SEPARATING THE EQUILIBRATE SOLVENT AND AIR, AND A HUMIDITY RESPONSIVE DEVICE POSITIONED IN CONTACT WITH THE SEPARATED EQUILIBRATED AIR; AND TRANSDUCER MEANS ACTUATED BY THE OUTPUT OF SAID HUMIDITY RESPONSIVE DEVICE AND CONNECTED TO SAID REGULATING MEANS TO REGULATE THE FLOW OF WATER TO SAID CIRCULATING SOLVENT.

Claim 4

Dependent Claim 185 words

IN A DRY CLEANING APPARATUS OF THE TYPE WHEREIN THE GOODS TO BE CLEANED ARE WASHED IN A ROTATABLE WASHING DRUM AND DRY CLEANING SOLVENT COMPOSITION IS CIRCULATED BY A PUMP THROUGH SAID DRUM AND A FILTER IN A CLOSED CIRCULATING PATH, APPARATUS FOR SUPPLYING A CONTROLLED AMOUNT OF WATER TO SAID SYSTEM COMPRISING, IN COMBINATION, WATER SUPPLY MEANS CONNECTED TO SAID PATH AND INCLUDING FLOWREGULATING MEANS FOR REGULATING THE FLOW OF WATER TO SAID PATH; A HUMIDITY MEASURING DEVICE, FLOW DIVERTING MEANS INTERCONNECTING SAID CIRCULATING PATH AND SAID MEASURING DEVICE TO DIVERT A SMALL STREAM OF THE CIRCULATING SOLVENT COMPOSITION TO SAID DEVICE, SAID HUMIDITY RESPONSIVE DEVICE COMPRISING MIXING MEANS FOR MIXING THE DIVERTED STREAM OF SOLVENT WITH A STREAM OF ATMOSPHERIC AIR TO EQUILIBRATE THE WATER CONTENTS OF THE SOLVENT AND AIR, A STEPARATING CHAMBER FOR SEPARATING THE EQUILIBRATE SOLVENT AND AIR, AND A HUMIDITY RESPONSIVE DEVICE POSITIONED IN CONTACT WITH THE SEPARATED EQUILIBRATED AIR; AND TRANSDUCER MEANS ACTUATED BY THE OUTPUT OF SAID HUMIDITY RESPONSIVE DEVICE AND CONNECTED TO SAID REGULATING MEANS TO REGULATE THE FLOW OF WATER TO SAID CIRCULATING SOLVENT.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1964-01-03	1964-07-04	1965-01-03	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1968-01-03	1968-07-04	1969-01-03	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1972-01-03	1972-07-04	1973-01-03	$7700.00	Window Closed / Lapsed

Process and apparatus for controlling water in a dry cleaning solvent composition with a humidity responsive device

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