Pumps – Condition responsive control of drive transmission or pump... – Disconnectable drive element
Patent
1993-06-11
1995-01-10
Bertsch, Richard A.
Pumps
Condition responsive control of drive transmission or pump...
Disconnectable drive element
41742311, 41742314, F04B 4900
Patent
active
053801628
ABSTRACT:
A pump having a split driveshaft for use in pumping hazardous fluids wherein only one driveshaft becomes contaminated by the fluid while the second remains isolated from the fluid. The pump has a first portion and a second portion. The first portion contains a pump motor, the first driveshaft, a support pedestal, and vapor barriers and seals. The second portion contains a second, self-lubricating driveshaft and an impeller. The first and second driveshafts are connected together by a releasable coupling. A shield and a slinger deployed below the coupling prevent fluid from the second portion from reaching the first portion. In operation, only the second assembly comes into contact with the fluid being pumped, so the risk of contamination of the first portion by the hazardous fluid is reduced. The first assembly can be removed for repairs or routine maintenance by decoupling the first and second driveshafts and disconnecting the motor from the casing.
REFERENCES:
patent: 2839006 (1958-06-01), Mayo
patent: 2930325 (1960-03-01), Beard et al.
patent: 2978988 (1961-04-01), McAlpine
patent: 3163117 (1964-12-01), Haentijens
patent: 3179827 (1965-04-01), Baker
patent: 3519365 (1970-07-01), Conhagen
patent: 3737255 (1973-06-01), Emeny
patent: 3771926 (1973-11-01), Pardieck
patent: 3782860 (1974-01-01), DeLancey et al.
patent: 3897176 (1975-07-01), Emeny
patent: 3936221 (1976-02-01), Lobanoff
patent: 4098557 (1978-07-01), Claunch et al.
patent: 4523900 (1985-06-01), Frey
patent: 4669956 (1987-06-01), Brunel et al.
patent: 4854828 (1989-08-01), Haentjens
patent: 4875836 (1989-10-01), Zehnder et al.
patent: 5076762 (1991-12-01), Lykes et al.
patent: 5096391 (1992-03-01), Tuckey
Evans, II Thomas P.
Fazio John M.
Purohit Jwalit J.
Bertsch Richard A.
Dixon Harold M.
Korytnyk Peter
Moser William R.
The United States of America as represented by the United States
LandOfFree
Split driveshaft pump for hazardous fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Split driveshaft pump for hazardous fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Split driveshaft pump for hazardous fluids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-846986