77255794
Aug 15, 2007
Jul 8, 2008
Hand pump used to inject liquid sealer into a pressure control device used with progressive cavity pump systems and reciprocating rod pump systems in the oil and gas industry
Hand ToolsA pumping system comprising of an automatic pressure control device and hand pump that uses liquid sealer to seal well bore production fluids away from the external environment for uses in artificial lift equipment including progressive cavity pump systems and reciprocating rod pump systems in the oil and gas industry
Electrical and Scientific Apparatus