Inventor
BERNSTROM MARVIN L
US14 patents
⚠️ This page may combine multiple inventors who share the name “BERNSTROM MARVIN L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EATON CORP
13 patentsUS4976594ADec 11, 1990
Gerotor motor and improved pressure balancing therefor
EATON CORP38 citations92
US5624248AApr 29, 1997
Gerotor motor and improved balancing plate seal therefor
EATON CORP29 citations90
US6544018B2Apr 8, 2003
Hydraulic motor having multiple speed ratio capability
EATON CORP17 citations82
US6371149B1Apr 16, 2002
Shuttle valve assembly and improved shifting thereof
EATON CORP14 citations81
US4715798ADec 29, 1987
Two-speed valve-in star motor
EATON CORP19 citations81
US6099280AAug 8, 2000
Two speed geroter motor with external pocket recirculation
EATON CORP17 citations78
US4756676AJul 12, 1988
Gerotor motor with valving in gerotor star
EATON CORP9 citations73
US6126424AOct 3, 2000
Transistion valving for gerotor motors
EATON CORP15 citations72
US4613292ASep 23, 1986
Hydraulic motor having free-wheeling and locking modes of operation
EATON CORP16 citations72
US5516268AMay 14, 1996
Valve-in-star motor balancing
EATON CORP18 citations71
US5593296AJan 14, 1997
Hydraulic motor and pressure relieving means for valve plate thereof
EATON CORP8 citations70
US5009582AApr 23, 1991
Rotary fluid pressure device and improved stationary valve plate therefor
EATON CORP5 citations62
US6679691B1Jan 20, 2004
Anti cavitation system for two-speed motors
EATON CORP6 citations58