Patent US4972408A successfully refreshed from Google Patents.
Patent US3257736A successfully refreshed from Google Patents.
US3257736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for liquid extraction
Assignee: Whirlpool Corp
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Filing: 1963-11-27
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Granted: 1966-06-28
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Expires: 1983-11-27
Abstract
No abstract record available.
Inventors
- 👤 Remy J Lachat
- 👤 Carl R Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:41
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/02; D06F37/04; D06F37/06; D06F37/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
LIQUID EXSTRACTION APPARATUS FOR FABRIC, COMPRISING: A ROTATABLE DRUM FOR RECEIVING AND TUMBLING FABRIC PLACED THEREIN, SAID DRUM HAVING A SUBSTANTIALLY RIGID PERFORATE PERIPHERY OF LIQUID IMPERVIOUS MATERIAL; A PLURALITY OF SPACED LONGITUDINAL, INWARDLY EXTENDING BAFFLES AT THE INNER SURFACE OF SAID DRUM, EACH BAFFLE BEING HIGHER AT THE ENDS THAN AT AN INTERMEDIATE PORTION BETWEEN THE ENDS; A LIQUID EXTRACTING SUCTION NOZZLE BEARING AGAINST A PORTION OF SAID PERIPHERY OUTWARDLY OF THE DRUM; MEANS FOR APPLYING A LIQUID EXTRACTING SUCTION TO SAID NOZZLE; AND MEANS FOR ROTATING SAID DRUM RELATIVE TO SAID NOZZLE TO TUMBLE SAID FABRIC WITHIN SAID DRUM AND PRESENT DIFFERENT AREAS OF SAID FABRIC TO SAID NOZZLE, THEREBY AIDING IN WITHDRAWING LIQUID FROM SAID FABRICS AND THROUGH SAID PERIPHERY AND NOZZLE.
Claim 2
Dependent Claim
125 words
LIQUID EXSTRACTION APPARATUS FOR FABRIC, COMPRISING: A ROTATABLE DRUM FOR RECEIVING AND TUMBLING FABRIC PLACED THEREIN, SAID DRUM HAVING A SUBSTANTIALLY RIGID PERFORATE PERIPHERY OF LIQUID IMPERVIOUS MATERIAL; A PLURALITY OF SPACED LONGITUDINAL, INWARDLY EXTENDING BAFFLES AT THE INNER SURFACE OF SAID DRUM, EACH BAFFLE BEING HIGHER AT THE ENDS THAN AT AN INTERMEDIATE PORTION BETWEEN THE ENDS; A LIQUID EXTRACTING SUCTION NOZZLE BEARING AGAINST A PORTION OF SAID PERIPHERY OUTWARDLY OF THE DRUM; MEANS FOR APPLYING A LIQUID EXTRACTING SUCTION TO SAID NOZZLE; AND MEANS FOR ROTATING SAID DRUM RELATIVE TO SAID NOZZLE TO TUMBLE SAID FABRIC WITHIN SAID DRUM AND PRESENT DIFFERENT AREAS OF SAID FABRIC TO SAID NOZZLE, THEREBY AIDING IN WITHDRAWING LIQUID FROM SAID FABRICS AND THROUGH SAID PERIPHERY AND NOZZLE.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |