Inventor
HAAVIK HAROLD K
14 patents
⚠️ This page may combine multiple inventors who share the name “HAAVIK HAROLD K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NASH ENGINEERING CO
13 patentsUS5100300AMar 31, 1992
Liquid ring pumps having rotating lobe liners with end walls
NASH ENGINEERING CO61 citations95
US5197863AMar 30, 1993
Bearing fluid distribution systems for liquid ring pumps with rotating lobe liners
NASH ENGINEERING CO56 citations93
US6394777B2May 28, 2002
Cooling gas in a rotary screw type pump
NASH ENGINEERING CO22 citations92
US5295794AMar 22, 1994
Liquid ring pumps with rotating liners
NASH ENGINEERING CO39 citations92
US5217352AJun 8, 1993
Two-stage liquid ring pump with rotating liner in first stage supported by liquid from second stage
NASH ENGINEERING CO36 citations92
US5653582AAug 5, 1997
Fluid bearing pad arrangement for liquid ring pump systems
NASH ENGINEERING CO34 citations89
US5370502ADec 6, 1994
Liquid ring pumps with pressurized gas supported rotating liners
NASH ENGINEERING CO27 citations88
US5961295AOct 5, 1999
Mixed flow liquid ring pumps
NASH ENGINEERING CO24 citations86
US4050851ASep 27, 1977
Liquid ring pumps and compressors using a ferrofluidic ring liquid
NASH ENGINEERING CO29 citations81
US4613283ASep 23, 1986
Liquid ring compressors
NASH ENGINEERING CO17 citations73
US4422832ADec 27, 1983
Liquid ring pump with vanes in liquid ring
NASH ENGINEERING CO10 citations73
US4334830AJun 15, 1982
Two-stage liquid ring pump with improved intrastage and interstage sealing means
NASH ENGINEERING CO14 citations73
US4323334AApr 6, 1982
Two stage liquid ring pump
NASH ENGINEERING CO17 citations73