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Class Information
Number: 210/531
Name: Liquid purification or separation > Gravitational separator > Mechanical constituent mover > Horizontally rotating scraper > Elevatable scrapers
Description: Apparatus in which the scraper is elevatable.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6899807 |
Solid and liquid separation device |
May. 31, 2005 |
| 6695122 |
Chip conveyer and chip-separation/recovery apparatus |
Feb. 24, 2004 |
| 6357576 |
Chip conveyors and apparatus for separating and collecting chips |
Mar. 19, 2002 |
| 6136207 |
Lifting mechanism assembly for a rotary drive assembly |
Oct. 24, 2000 |
| 5997740 |
Lifting mechanism assembly for a rotary drive assembly |
Dec. 7, 1999 |
| 5720891 |
Retractable sediment collecting device for covered basins |
Feb. 24, 1998 |
| 5478471 |
Sludge scraping apparatus |
Dec. 26, 1995 |
| 5200079 |
Circular clarifier including improved skimmer clarifier |
Apr. 6, 1993 |
| 5198125 |
Method and apparatus for sludge collection |
Mar. 30, 1993 |
| 4859346 |
Ground mounted traction drive and method for sedimentation device |
Aug. 22, 1989 |
| 4855030 |
Dendrite inhibitor |
Aug. 8, 1989 |
| 4751002 |
Cable supported rake arm thickener |
Jun. 14, 1988 |
| 4725365 |
Bar screen raking apparatus and method of use |
Feb. 16, 1988 |
| 4624787 |
Lifting mechanism for sedimentation device |
Nov. 25, 1986 |
| 4592835 |
Pressure filter |
Jun. 3, 1986 |
| 4515694 |
Cable lifting mechanism for sedimentation device |
May. 7, 1985 |
| 4494581 |
Isolation of forestream and midstream portions of collected urine samples |
Jan. 22, 1985 |
| 4492258 |
Sterile urine specimen collection |
Jan. 8, 1985 |
| 4486309 |
Sludge shovel apparatus |
Dec. 4, 1984 |
| 4462908 |
Rake lifting means for sedimentation apparatus |
Jul. 31, 1984 |
| 4424130 |
Rake drive and lifting device for sedimentation apparatus |
Jan. 3, 1984 |
| 4417983 |
Scraper apparatus for settling basins and the like |
Nov. 29, 1983 |
| 4367141 |
Apparatus for the concentration of sludges and suspensions |
Jan. 4, 1983 |
| 4247400 |
Rotary rake structure for a settling tank |
Jan. 27, 1981 |
| 4172040 |
Sediment raking device |
Oct. 23, 1979 |
| 4137170 |
Travelling precipitate collector |
Jan. 30, 1979 |
| 4118321 |
Device for tanks of circular type such as, for example, thickeners, sludge tanks, mixing tanks and the like |
Oct. 3, 1978 |
| 4053421 |
Sedimentation tank with raking structure |
Oct. 11, 1977 |
| 4005019 |
Gravitational separator |
Jan. 25, 1977 |
| 3959152 |
Traction-driven composite sludge raking mechanism for sedimentation tanks |
May. 25, 1976 |
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