Patent US3784116A successfully refreshed from Google Patents.
US3784116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulping system with jet assist for pulper discharge
Assignee: Wascon Systems Inc
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Filing: 1971-09-28
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Granted: 1974-01-08
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Expires: 1991-09-28
Abstract
Abstract A pulping system is disclosed herein, having a pulping tank wherein waste is abraded and comminuted, and discharged therefrom, to a press as a water-waste slurry. Water is extracted from solids in the press, and is pumped therefrom, through a jet located at the pulper discharge, with the jet being operative to educt slurry from the pulper, and to assist its conveyance to the press. Waste water which feeds the jet is extracted from a return line of press water being recycled to the pulper.
Inventors
- 👤 W Buckman
- 👤 B Miller
- 👤 T Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:22
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/0084; B02C18/0092; Y; Y10; Y10S; Y10S241/00; Y10S241/38
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
220 words
A system for treatment of waste material, comprising pulper means for forming waste material into a slurry, said pulper means including tank means for receiving the waste material and a liquid and means for forming the waste material and liquid into a slurry, press means for separating the waste material from the liquid in the slurry, first conduit means connected in fluid communication with said tank means and press means for conducting slurry from said tank means to said press means, eductor means connected in fluid communication with said first conduit means for inducing a flow of slurry from said tank means to said press means through said first conduit means, said eductor means including chamber means for receiving slurry and having an inlet connected in fluid communication with said tank means and an outlet, venturi means having a throat connected in fluid Communication with said outlet from said chamber means, and nozzle means for directing a stream of liquid from said press means toward said throat of said venturi means to induce a flow of slurry from said chamber means through said venturi means, and second conduit means connected in fluid communication with said eductor means and said press means for conducting to said nozzle means liquid separated from the waste material in the slurry by said press means.
Claim 2
Independent Claim
220 words
A system for treatment of waste material, comprising pulper means for forming waste material into a slurry, said pulper means including tank means for receiving the waste material and a liquid and means for forming the waste material and liquid into a slurry, press means for separating the waste material from the liquid in the slurry, first conduit means connected in fluid communication with said tank means and press means for conducting slurry from said tank means to said press means, eductor means connected in fluid communication with said first conduit means for inducing a flow of slurry from said tank means to said press means through said first conduit means, said eductor means including chamber means for receiving slurry and having an inlet connected in fluid communication with said tank means and an outlet, venturi means having a throat connected in fluid Communication with said outlet from said chamber means, and nozzle means for directing a stream of liquid from said press means toward said throat of said venturi means to induce a flow of slurry from said chamber means through said venturi means, and second conduit means connected in fluid communication with said eductor means and said press means for conducting to said nozzle means liquid separated from the waste material in the slurry by said press means.
Claim 3
Dependent Claim
26 words
A system as set forth in claim 1 further including pump means for inducing a flow of liquid from said press means to said nozzle means.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |