Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Gerfast

Sten R. Gerfast, Mendota Heights, MN US

Patent application numberDescriptionPublished
20100225260Efficient circuit for brushless low cogging machine with congruent stator - A brushless dynamo-electric machine that can be used either as electric generator or electric motor driven by sine wave pulses or by commutated DC pulses.09-09-2010

Patent applications by Sten R. Gerfast, Mendota Heights, MN US

Sten R. Gerfast US

Patent application numberDescriptionPublished
20080246264In-expensive head and upper torso restraint with U-shaped air bag - This invention relates to a vehicle having a pivoted head rest and a pivoted seat back that follows a human head and torso forward during the accident of the vehicle, but prevent backwards motion. A U-shaped air bag, the head rest, and seat back prevent whip-lash and also side-impact-whip-lash by immobilizing the head and torso during a frontal or side impact crash.10-09-2008

Sten Rutger Gerfast, Mendota Heights, MN US

Patent application numberDescriptionPublished
20080196305Continuous hydrogen and alcohol generator from coal - A gas generator with the sole input of air, water and coal that continuously produces hydrogen and carbon monoxide and further reacts these two gases into alcohol. This gas generator/reactor is using its own by-products and is therefore also self sustaining.08-21-2008