Pumps – Motor driven – Electric or magnetic motor
Patent
1997-08-12
2000-04-18
Freay, Charles G.
Pumps
Motor driven
Electric or magnetic motor
4174241, 277367, 277408, F04B 1703
Patent
active
060507888
ABSTRACT:
A pump for pumping fluids in a filtration system is disclosed. The pump has a thrust balancing means to reduce axial loads on motor bearings of the pump during operation of the pump. A drive system of the pump includes an elongate flexible shaft interconnecting a drive shaft and an impeller shaft. The elongate flexible shaft bends and twists to accommodate misalignment during assembly of the drive system. A seal assembly is provided for sealing about a drive shaft. The seal assembly is evacuated to prevent pumped fluid from contaminating fluids in the motor. A concentric coupling and method for making the same are taught which include a cylindrical block which is concentrically bored and cut into an annular L-shaped segment having an L-shaped notch and a semi-cylindrical mating segment which is received into the notch. The coupling concentrically joins a pair of shafts together.
REFERENCES:
patent: 3698830 (1972-10-01), Goyne
patent: 4466619 (1984-08-01), Adams
patent: 4634134 (1987-01-01), Entrikin
patent: 5116066 (1992-05-01), Crawford
patent: 5346361 (1994-09-01), Jurgill et al.
patent: 5351972 (1994-10-01), Anderberg
patent: 5489105 (1996-02-01), Attenasio et al.
Benschoter Robert F.
Hallett Richard A.
McEwen Scott M.
McEwen Stephen N.
Palumbo Anthony J.
Freay Charles G.
Henry Filters, Inc.
Ratcliffe Paul L.
LandOfFree
Pump with improved seal for filtration systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pump with improved seal for filtration systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump with improved seal for filtration systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2331885