US3603122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller drainage press for laundry
Assignee: Individual
•
Filing: 1969-09-19
•
Granted: 1971-09-07
•
Expires: 1989-09-19
Abstract
Abstract A roller drainage press for wet laundry including a steel drum having conically flared outer edges driving a doughnut-shaped inflated rubber tire. A continuous band of wet laundry is fed through a conically reduced feeder channel to the drum and tire interface. The laundry band distorts the tire to a concave cross section which wrings out absorbed liquid.
Inventors
- 👤 Erich Sulzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:08
CPC Classifications
D; D06; D06B; D06B15/00; D06B15/02; D06F; D06F45/00; D06F45/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
126 words
A roller drainage press for laundry comprising: a cylindrical steel roller 10 having a base portion 18 and conically widened outwardly extending end sections 18a, 18b on both sides of said base portion, each of said sections rising outwardly directly from the base portion, and a doughnut-shaped rubber counterpressure roller filled with compressed air, said steel roller driving said rubber counterpressure roller, said rubber counterpressure roller having a ball-shaped pressure surface having a diameter less than the length of said steel roller which comprises the base portion 18 and the end sections 18a, 18b but greater than the length of said base portion alone, whereby said rubber roller engages said end sections when said laundry passes between said cylindrical steel roller and said rubber counterpressure roller.
Claim 2
Dependent Claim
126 words
A roller drainage press for laundry comprising: a cylindrical steel roller 10 having a base portion 18 and conically widened outwardly extending end sections 18a, 18b on both sides of said base portion, each of said sections rising outwardly directly from the base portion, and a doughnut-shaped rubber counterpressure roller filled with compressed air, said steel roller driving said rubber counterpressure roller, said rubber counterpressure roller having a ball-shaped pressure surface having a diameter less than the length of said steel roller which comprises the base portion 18 and the end sections 18a, 18b but greater than the length of said base portion alone, whereby said rubber roller engages said end sections when said laundry passes between said cylindrical steel roller and said rubber counterpressure roller.
Claim 3
Dependent Claim
125 words
The roller drainage press of claim 1 further comprising: a feeder channel comprising two guide plates positioned laterally on a transport facility to provide a channel laundry, said guide plates having their ends which are perpendicular to the direction of the transport facility and furthest from said rollers, separated from each other a greater distance than their ends perpendicular to the direction of the transport facility and closest to said rollers and further said guide plates being inclined towards each other such that their edges parallel to the longitudinal direction of the transport facility and closest to said transport facility are spaced further apart than the edges of said guide plates parallel to the direction of the transport facility and furthest from said transport facility.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |