Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Reexamination Certificate
2006-12-12
2006-12-12
Hopkins, Robert A. (Department: 1724)
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
C210S159000, C210S161000
Reexamination Certificate
active
07147784
ABSTRACT:
A drive system for driving a screen in a fluid screening system comprises a hydraulic or pneumatic motor coupled to a drive shaft of the screen. The system is sized to provide the torque required to drive the screen throughout-the desired speed range, as well as providing additional torque as required to free lodged solids from the screen field. The hydraulic motor provides overload protection when lodged solids block the rotating rake bar. The drive system operates up to a predetermined pressure value before the overload protection is activated. The drive system may be operated in either a manual mode or an automatic mode.
REFERENCES:
patent: 3199793 (1965-08-01), Sabi
patent: 3659963 (1972-05-01), Jennings
patent: 4227138 (1980-10-01), Espelage et al.
patent: 4508318 (1985-04-01), Maeda
patent: 4799160 (1989-01-01), Arbeille et al.
patent: 5032263 (1991-07-01), Rudzinski
patent: 5730862 (1998-03-01), Mahr
patent: 6190258 (2001-02-01), Heidenreich et al.
patent: 2004/0245159 (2004-12-01), Rybar et al.
patent: 3404954 (1984-02-01), None
patent: 2808496 (2000-05-01), None
Bracewell & Giuliani LLP
Headworks, Inc.
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