Lift station and method

Liquid purification or separation – Gravitational separator – Mechanical constituent mover

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C415S003100, C416S19700C

Reexamination Certificate

active

07134557

ABSTRACT:
A lift station for raising the level of an open channel flow of liquid by sweeping blades mounted to a rotated wheel into the liquid flow after entering a housing to sweep the liquid up and back along a housing interior wall and over a weir edge located well above the level of the open channel flow stream. The flow stream is caused to descend as it enters the housing through a drop to increase the flow velocity to a degree sufficient to offset the impeding effect on upstream flow of the encounter of the flow with the rotating blades. Roller bearings are mounted to the inside of the housing to side walls to support the bladed wheel and are packed with a solid lubricant to insure a long service life despite being exposed to the liquid and debris entrained therein. A reverse rotation device positively prevents a backwards rotation of the wheel to prevent damage to the blades. The wheel is driven by a motor mounted in a housing tray affixed to one side wall driving a drive shaft penetrating the side wall. The housing tray collects any liquid leaking past the shaft and has a sloping bottom directing liquid back towards a drain hole in the housing side wall.

REFERENCES:
patent: 5980735 (1999-11-01), Bratten
patent: 6406635 (2002-06-01), Smith et al.
patent: 6705555 (2004-03-01), Bratten
patent: 7077954 (2006-07-01), Bratten
patent: 1 034 306 (1953-09-01), None
patent: 0 536 973 (1993-04-01), None
patent: 1 122 024 (2001-08-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Lift station and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lift station and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lift station and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3635203

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.