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US 11,148,074 B2Granted
Clarifier with independent sump scraper drive
AssigneeKadant Black Clawson LLC
InventorPaul J. Powers
Life of this patent
Estimating the term…
Abstract
An improved clarifier tank having a rake arm assembly with one or more rake arms, a rake arm driveshaft operatively connected to the rake arms and a rake arm drive, and a sump scraper driveshaft, operatively connected to a plurality of sump scrapers and a sump scraper drive.
Claims18
An improved clarifier tank, comprising:
- a rake arm assembly, comprising one or more rake arms;
- a rake arm driveshaft operatively connected to said rake arms and a rake arm drive;
- and
- a sump scraper driveshaft, operatively connected to a plurality of sump scrapers and a sump scraper drive,
- wherein said sump scraper drive is independent of said rake arm drive.
2 more elements
An improved clarifier tank, comprising:
- a rake arm assembly, comprising one or more rake arms;
- a rake arm driveshaft operatively connected to said rake arms and a rake arm drive;
- a sump scraper driveshaft, operatively connected to a plurality of sump scrapers and a sump scraper drive;
- and
- a rake arm lift device,
- wherein said sump scraper drive is independent of said rake arm drive.
3 more elements
An improved clarifier tank, comprising:
- a rake arm system, comprising one or more rake arms, a rake arm driveshaft, and a rake arm drive, wherein said rake arm system is top driven;
- and
- a sump scraper system, comprising a plurality of sump scrapers, a sump scraper driveshaft and a sump scraper drive, wherein said sump scraper system is bottom driven.
A drive system for a clarifier tank, the drive system comprising:
- a drive assembly, wherein said drive assembly comprises,
- a drive shaft, one or more rake arms, and a plurality of sump scrapers, wherein said rake arms and said sump scrapers are operatively connected to said drive shaft through a slide coupling mechanism,
- wherein said slide coupling mechanism allows for said rake arms to move up-and-down, while still allowing said sump scrapers to remain in a fixed position.
Dependencies are inferred from the claim text.