US3570504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing and drying apparatus
Assignee: Buckbee Mears Co
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Filing: 1968-10-01
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Granted: 1971-03-16
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Expires: 1988-10-01
Abstract
Abstract A washing and drying apparatus having a plurality of elongated rollers which are power driven so as to produce a propelling surface for transporting material through a cleaning solution and a drying station.
Inventors
- 👤 John J Frantzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:25
CPC Classifications
C; C23; C23G; C23G3/00; B; B08; B08B; B08B3/00; B08B3/04; B08B3/041; B29; B29D; B29D7/00; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0413; B29C; B29C71/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
145 words
Apparatus for cleaning and drying a sheet of material comprising: a stand; a plurality of elongated parallel rollers generally mounted on said stand so as to form a level propelling surface with a downward bending arcuate portion in the middle; a solution tank mounted on said stand below said propelling surface, said solution tank adaptable for receiving cleaning solution to a level above the top of the lower part of the arcuate portion of said propelling surface; means connected to said plurality of elongated rollers for driving all of said elongated rollers; said means comprising a pair of sprocket wheels on each roller each connected to an adjacent roller through an endless chain belt; and drying means for supplying hot air to the top and bottom of said propelling surface in an impinging relation against a sheet of material that emerges from said cleaning solution.
Claim 2
Dependent Claim
145 words
Apparatus for cleaning and drying a sheet of material comprising: a stand; a plurality of elongated parallel rollers generally mounted on said stand so as to form a level propelling surface with a downward bending arcuate portion in the middle; a solution tank mounted on said stand below said propelling surface, said solution tank adaptable for receiving cleaning solution to a level above the top of the lower part of the arcuate portion of said propelling surface; means connected to said plurality of elongated rollers for driving all of said elongated rollers; said means comprising a pair of sprocket wheels on each roller each connected to an adjacent roller through an endless chain belt; and drying means for supplying hot air to the top and bottom of said propelling surface in an impinging relation against a sheet of material that emerges from said cleaning solution.
Claim 3
Dependent Claim
46 words
The invention as described in claim 1 wherein said last drying means includes a first drying unit for directing hot air on the top of a sheet of material and a second drying unit for directing hot air at the underside of a sheet of material.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |