Patent US3674145A successfully refreshed from Google Patents.
US3674145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for clarifying liquids
Assignee: Jadair Inc
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Filing: 1970-03-26
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Granted: 1972-07-04
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Expires: 1990-03-26
Abstract
Abstract Liquids containing contaminating particles of various sizes are treated in a multi-stage system wherein the liquid is delivered into the rear end of a first stage of a tank divided longitudinally into two stages; passing the liquid into contact with and under a pair of baffles; forcing the liquid forward in the first stage to effect a settling of the coarser particles; slowly conveying the settled particles forward, up and out of the first stage of the tank; passing the liquid from the first stage to the second stage through a crossover weir which skims off the cleanest liquid; continuously forcing the liquid down to the bottom of the second stage and under a baffle, minimizing the settling distance for the finer particles; slowly conveying the settled particles forward, up and out of the second stage; and skimming the cleanest liquid at an outlet baffle located at the rear of the second stage adjacent the inlet of the first stage.
Inventors
- 👤 David L Schmutzler
- 👤 John H Schmutzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:40
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/003; B01D21/0039; B01D21/0042; B01D21/18; B01D21/24; B01D21/2433; B01D21/2438; B01D21/245; B01D21/30; B01D21/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
24 words
The method of claim 1 wherein the operation is performed according to a predetermined schedule to assure the removal of required amounts of contaminants.
Claim 2
Dependent Claim
23 words
The method of claim 1 wherein the movement of the conveying means is automatically controlled in each stage accordin to a predetermined program.
Claim 3
Independent Claim
272 words
A system for clarifying liquids having contaminants dispersed therein comprising: a. a generally rectangular tank having a bottom, a pair of opposed sides, a rear end, and a disposal ramp all integrally connected, said disposal ramp being inclined at an angle so that the upper edge thereof extends beyond the forward edge of the bottom; b. a dividing plate substantially parallel to and positioned between the sides secured to the rear end, bottom and disposal ramp dividing said tank into Stage A and Stage B; c. a crossover weir positioned adjacent the upper edge of the dividing plate and in close proximity to the disposal ramp; d. conveying means in Stage A adapted for moving coarse solid contaminants forward, up and over the edge of the disposal ramp; e. paddles attached to said conveying means; f. a pair of baffles positioned adjacent the rear end in Stage A; g. a baffle adjacent to the rear edge of the crossover weir and inclined in essentially the same manner as the discharge ramp; h. conveying means in Stage B for moving fine, solid contaminants forward, up and over the edge of the disposal ramp; i. a discharge baffle integrally connected to the side, rear end and dividing plate in Stage B and inclined in essentially the same manner as the discharge ramp. j. a drive means for moving the conveying means in Stage A and B independently of each other; k. an inlet positioned adjacent the rear end and substantially midway between dividing plate and the side and between the rear end and the inlet baffle; l. an outlet positioned above the discharge baffle.
Claim 4
Dependent Claim
24 words
The apparatus of claim 4 wherein said paddles are bow shaped with the ends extending forward of the middle and having drain holes Therein.
Claim 5
Dependent Claim
37 words
The apparatus of claim 5 wherein there is a strip of hard, flexible material attached to and extending below the lower edge of said paddles with said strip being tapered upwardly toward the ends of said paddle.
Claim 6
Dependent Claim
23 words
The apparatus of claim 4 wherein the upper edge of the disposal ramp extends above the sides and rear end of the tank.
Claim 7
Dependent Claim
19 words
The apparatus of claim 4 further including automatic controls for regulating the conveying means in Stages A and B.
Claim 8
Independent Claim
237 words
A system for clarifying liquids having contaminants dispersed therein comprising: a. a generally rectangular tank having a bottom, a pair of opposed sides, a rear end, and a disposal ramp all integrally connected, said disposal ramp being inclined at an angle so that the upper edge thereof extends beyond the forward edge of the bottom; b. a dividing plate substantially parallel to and positioned between the sides secured to the rear end, bottom and disposal ramp dividing said tank into Stage A and Stage B; c. a crossover weir positioned adjacent the upper edge of the dividing plate and in close proximity to the disposal ramp; d. conveying means in Stage A adapted for moving coarse solid contaminants forward, up and over the edge of the disposal ramp; e. paddles attached to said conveying means; f. a baffle adjacent to the rear edge of the crossover weir and inclined in essentially the same manner as the discharge ramp in Stage B; g. conveying means in Stage B for moving fine, solid contaminants forward, up and over the edge of the disposal ramp; h. a discharge baffle integrally connected to the sides and dividing plate in Stage B and adjacent the rear end; i. a drive means for moving the conveying means in Stage A and Stage B independently of each other, and j. an outlet in the rear end of Stage B, positioned above the discharge baffle.
Claim 9
Dependent Claim
24 words
The apparatus of claim 9 wherein said paddles are bow shaped with the ends extending forward of the middle and having drain holes therein.
Claim 10
Dependent Claim
37 words
The apparatus of claim 10 wherein there is a strip of hard, flexible material attached to and extending below the lower edge of said paddles with said strip being tapered upwardly toward the ends of said paddle.
Claim 11
Dependent Claim
25 words
The apparatus of claim 9 including automatic controls for maintaining constant level and regulating movement of the conveying means in Stage A and Stage B.
Claim 12
Dependent Claim
23 words
The apparatus of claim 9 wherein the upper edge of the disposal ramp extends above the sides and rear end of the tank.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |