US3738127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cleaning recovery unit
Assignee: Systemation Inc
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Filing: 1971-01-29
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Granted: 1973-06-12
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Expires: 1991-01-29
Abstract
Abstract A dry cleaning liquid recovery unit which can be used integrally with a dry cleaning system, or as a separate stripping, drying and recovery unit to effectuate liquid recovery and rapid drying of fabrics and clothes placed therein without creasing. The recovery unit has an improved thermal heating unit which can be converted to a cooling unit for cooling the circulating air which allows the garments or fabrics in the recovery unit to be cooled down prior to removal and extended piling thereof.
Inventors
- 👤 R Hyams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:00
CPC Classifications
D; D06; D06F; D06F43/00; D06F43/08; D06F43/086; D06B; D06B9/00; D06B9/06; Y; Y02; Y02P; Y02P70/00; Y02P70/50; Y02P70/62
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
294 words
A dry cleaning unit comprising: a receptacle having a rotatable basket therein for purposes of moving fabrics for cleaning within a cleaning liquid; means for storing cleaning liquid when it is not being used in said receptacle; motor means for rotating the basket within said receptacle; a pump for circulating cleaning fluid through the receptacle, and to and from said cleaning fluid storage means; recoverY means for stripping residual cleaning fluid from fabrics within said receptacle comprising a first and second heat exchange means which can be supplied at least in part with heating fluid and cooling fluid; a first delivery conduit connected to said first heat exchange means; a second delivery conduit connected to said first heat exchange means; a second delivery conduit connected to said second heat exchange means with a valve interposed between said first and second delivery conduit to permit flow through each delivery conduit simultaneously, or only through one or the other delivery conduits; a first exit conduit from said first heat exchange means; a second pipe from said second exit conduit to said first exit conduit with a valve interposed therein for allowing exit of fluid flow only from said first exit conduit or in parallel with said second conduit means; a third pipe connected to said second exit conduit at a crossing with said second pipe and valve for passage of fluid when said second pipe from said second conduit is closed; and, means for operating said valving so that fluid flows through said first and second entry conduits to said first and second heat exchangers and outwardly therefrom through said first and second exit conduits or alternately so that cooling fluid flows through said first heat exchanger while heating fluid flows through said second heat exchanger.
Claim 2
Dependent Claim
294 words
A dry cleaning unit comprising: a receptacle having a rotatable basket therein for purposes of moving fabrics for cleaning within a cleaning liquid; means for storing cleaning liquid when it is not being used in said receptacle; motor means for rotating the basket within said receptacle; a pump for circulating cleaning fluid through the receptacle, and to and from said cleaning fluid storage means; recoverY means for stripping residual cleaning fluid from fabrics within said receptacle comprising a first and second heat exchange means which can be supplied at least in part with heating fluid and cooling fluid; a first delivery conduit connected to said first heat exchange means; a second delivery conduit connected to said first heat exchange means; a second delivery conduit connected to said second heat exchange means with a valve interposed between said first and second delivery conduit to permit flow through each delivery conduit simultaneously, or only through one or the other delivery conduits; a first exit conduit from said first heat exchange means; a second pipe from said second exit conduit to said first exit conduit with a valve interposed therein for allowing exit of fluid flow only from said first exit conduit or in parallel with said second conduit means; a third pipe connected to said second exit conduit at a crossing with said second pipe and valve for passage of fluid when said second pipe from said second conduit is closed; and, means for operating said valving so that fluid flows through said first and second entry conduits to said first and second heat exchangers and outwardly therefrom through said first and second exit conduits or alternately so that cooling fluid flows through said first heat exchanger while heating fluid flows through said second heat exchanger.
Claim 3
Dependent Claim
116 words
A dry cleaning recovery unit having a receptacle with a rotatable basket for fabrics to be cleaned and means to pass a stream of air therethrough comprising: a first heat exchanger which can be utilized for cooling the stream of air; a second heat exchanger over which the stream of air from said receptacle can pass; means for introducing a heating fluid; means for introducing a cooling fluid; valve means for curtailing the flow of cooling fluid to said second heat exchanger while heating fluid is flowing thereto; valve means to curtail the flow of the heating fluid while cooling fluid is flowing theough said second heat exchanger; and, means to operate both valve means simultaneously.
Claim 4
Dependent Claim
116 words
A dry cleaning recovery unit having a receptacle with a rotatable basket for fabrics to be cleaned and means to pass a stream of air therethrough comprising: a first heat exchanger which can be utilized for cooling the stream of air; a second heat exchanger over which the stream of air from said receptacle can pass; means for introducing a heating fluid; means for introducing a cooling fluid; valve means for curtailing the flow of cooling fluid to said second heat exchanger while heating fluid is flowing thereto; valve means to curtail the flow of the heating fluid while cooling fluid is flowing theough said second heat exchanger; and, means to operate both valve means simultaneously.
Claim 5
Dependent Claim
55 words
A dry cleaning recovery unit as claimed in claim 2 further comprising: a flap for limiting passage of air from said first heat exchanger to said second heat exchanger; vent means to permitting air to exit directly from said first heat exchanger; and, vent means for allowing air to directly enter said second heat exchanger.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |