Improvements in the operation and maintenance of non-clogging pumps are provided which increase pump efficiencies through improved impeller design and vacuum assembly design, and which increase seal lubrication efficiencies through improved seal lubricant reservoir system design.
申请公布号
WO2012009021(A3)
申请公布日期
2012.04.12
申请号
WO2011US01269
申请日期
2011.07.18
申请人
ENVIRO TECH PUMPSYSTEMS, INC.;SHAW, JAMES, G.;NORTHRUP, JAMES;MILLER, MARTIN
