Inventor
ERICKSON FREDERICK L
US29 patents
⚠️ This page may combine multiple inventors who share the name “ERICKSON FREDERICK L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILIPS CORP
11 patentsUS5253619AOct 19, 1993
Hydraulically powered actuator with pneumatic spring and hydraulic latching
PHILIPS CORP65 citations96
US5248123ASep 28, 1993
Pilot operated hydraulic valve actuator
PHILIPS CORP81 citations96
US5152260AOct 6, 1992
Highly efficient pneumatically powered hydraulically latched actuator
PHILIPS CORP54 citations96
US5058538AOct 22, 1991
Hydraulically propelled phneumatically returned valve actuator
PHILIPS CORP32 citations92
US5221072AJun 22, 1993
Resilient hydraulic actuator
PHILIPS CORP15 citations74
US5189996AMar 2, 1993
Two-stroke-cycle engine with variable valve timing
PHILIPS CORP18 citations74
US5109812AMay 5, 1992
Pneumatic preloaded actuator
PHILIPS CORP16 citations74
US5083533AJan 28, 1992
Two-stroke-cycle engine with variable valve timing
PHILIPS CORP14 citations74
US5022359AJun 11, 1991
Actuator with energy recovery return
PHILIPS CORP16 citations74
US5029516AJul 9, 1991
Pneumatically powered valve actuator
PHILIPS CORP11 citations73
US5203535AApr 20, 1993
Cam actuated valve assembly with hydraulic spring
PHILIPS CORP3 citations63
MAGNAVOX CO
10 patentsUS4878464ANov 7, 1989
Pneumatic bistable electronic valve actuator
MAGNAVOX CO77 citations95
US4852528AAug 1, 1989
Pneumatic actuator with permanent magnet control valve latching
MAGNAVOX CO44 citations92
US4873948AOct 17, 1989
Pneumatic actuator with solenoid operated control valves
MAGNAVOX CO19 citations82
US4991548AFeb 12, 1991
Compact valve actuator
MAGNAVOX CO10 citations74
US4967702ANov 6, 1990
Fast acting valve
MAGNAVOX CO18 citations74
US4942852AJul 24, 1990
Electro-pneumatic actuator
MAGNAVOX CO14 citations74
US4915015AApr 10, 1990
Pneumatic actuator
MAGNAVOX CO17 citations74
US4875441AOct 24, 1989
Enhanced efficiency valve actuator
MAGNAVOX CO13 citations74
US5003938AApr 2, 1991
Pneumatically powered valve actuator
MAGNAVOX CO8 citations73
US4872425AOct 10, 1989
Air powered valve actuator
MAGNAVOX CO5 citations63
ERICKSON FREDERICK L
6 patentsUS5341774AAug 30, 1994
Self supercharged two stroked cycle and engine having migrating combustion chambers
ERICKSON FREDERICK L11 citations73
US4437437AMar 20, 1984
Dual-expansion internal combustion cycle and engine
ERICKSON FREDERICK L20 citations73
US4325331AApr 20, 1982
Dual-expansion internal combustion cycle and engine
ERICKSON FREDERICK L18 citations73
US4110060AAug 29, 1978
High displacement-to-size ratio orbiting fluid mechanism
ERICKSON FREDERICK L7 citations73
US4353331AOct 12, 1982
Dual-expansion internal combustion engine utilizing an oscillating piston inside an oscillating piston
ERICKSON FREDERICK L5 citations62
US4090817AMay 23, 1978
High displacement-to-size ratio rotary fluid mechanism
ERICKSON FREDERICK L5 citations62