US3570670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating muddy water
Assignee: Kurita Water Industries Ltd
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Filing: 1969-06-18
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Granted: 1971-03-16
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Expires: 1989-06-18
Abstract
Abstract An apparatus for treating muddy water comprising a vibrating screen, a separating tank, a hydraulic cyclone, a chute for discharging solid components, a cement hopper and a mixer, all of which are incorporated to form a compact unitary system.
Inventors
- 👤 Masaaki Endo
- 👤 Takato Kawasaki
- 👤 Mituo Miura
- 👤 Yoko Ikuta
- 👤 Mosashi Suzuki
- 👤 Tateo Kawamura
- 👤 Minoru Okazaki
- 👤 Hajime Seo
- 👤 Toshio Okazaki
- 👤 Katsumi Tagomori
- 👤 Shiro Takahashi
- 👤 Noboru Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:05
CPC Classifications
B; B01; B01D; B01D36/00; B01D36/04; B01D36/045; B01D35/00; B01D35/20; B01D35/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
71 words
An apparatus according to claim 1, including a frame, a raw muddy water feeding device journaled on said frame and adapted for feeding raw muddy water onto said screen, said feeding device having a substantially Z-shaped passage whose cross-sectional area is progressively enlarged from the inlet to the outlet thereof, and an angle-adjusting mechanism mounted on said frame for adjusting the angular relationship between said feeding device and said screen device.
Claim 2
Dependent Claim
51 words
A apparatus according to claim 1, in which said vibrating screen device comprises an upper screen medium and lower screen medium, said upper screen medium comprising a flat perforated plate having holes of comparatively large diameter, said lower screen medium comprising a wire mesh having sieve openings of comparatively small size.
Claim 3
Dependent Claim
37 words
An apparatus according to claim 1, in which a feeding mechanism is provided between said hopper outlet and said mixer inlet, said feeding mechanism including means for regulating the rate of feeding cement into said mixer inlet.
Claim 4
Dependent Claim
30 words
An apparatus according to claim 1, including a liquid level controL device for controlling in the operation of said pump in response to the liquid level in the separating tank.
Claim 5
Dependent Claim
73 words
An apparatus according to claim 1, in which said chute is divided by separating plates into a central passage and side passages on opposite sides of said central passage, said central passage being disposed from receiving solids discharged from said screen device and said side passages being disposed for receiving solids discharged from said cyclone, said central passage having an opening through the bottom thereof and a damper for selectively closing said opening.
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) | 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 |