序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 METHOD OF DETERMINING PUMP FLOW IN ROTARY POSITIVE DISPLACEMENT PUMPS PCT/US2013035902 2013-04-10 WO2013155140A9 2014-04-24 STAVALE ANTHONY E
162 MODULAR ANTI-TORQUE MECHANISM PCT/DE2011002089 2011-12-07 WO2012097773A3 2013-08-08 CEMIN ANGELO; DITTRICH JOCHEN; ZUBER ALEXANDER
A mechanism for securing a drive unit for borehole pumps against torque is disclosed. The overload generated by the borehole pump and/or the drive unit can be entirely absorbed and/or neutralized by at least one securing element.
163 VACUUM LINE AND METHOD FOR MONITORING SAME PCT/FR2006050673 2006-07-04 WO2007003862A3 2007-03-08 BECOURT NICOLAS
The invention concerns a vacuum line for pumping gases in a process chamber, comprising at least: a pumping unit including a pump housing and a motor, a system for discharging the gases, first means for measuring a functional parameter concerning the motor, second means for measuring a functional parameter concerning the discharge system, and means for predicting the duration of use of the vacuum line. The prediction means calculates the duration of use of the vacuum line prior to failure of the pumping unit, based on the measurement of the functional parameter concerning the motor supplied by the first means and on the measurement of a functional parameter concerning the discharge system supplied by the second means. In another embodiment, the vacuum line further comprises third means for measuring a functional parameter concerning the pump housing, and the prediction means calculates the duration of use taking into account the measurement of said parameter.
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