Hicor Technologies, Inc.

Oscomp Systems Inc.

Global Research Innovation and Technology L3c

Harrison O'Hanley

John Paul Walton

Andrew Nelson

Mitchell Westwood

Jeremy Pitts

Johannes Santen

Pedro T Santos

Pedro Santos

Benjamin Judge

Gwyndaf M Jones

Daniel D Frey

Mario Bollini

Nydia Ruleman

Xuefeng Chen

Amos G Winter, V

Danielle M DeLatte

Natasha K Scolnik

Benjamin H Gallup

Danielle Hicks

A positive displacement rotary compressor is designed for near isothermal compression, high pressure ratios, high revolutions per minute, high efficiency, mixed gas/liquid compression, a low temperature increase, a low outlet temperature, and/or a high outlet pressure. Liquid injectors provide cooling liquid that cools the working fluid and improves the efficiency of the compressor. A gate moves within the compression chamber to either make contact with or be proximate to the rotor as it turns.

Compressor with liquid injection cooling

Compressor

A manually powered wheelchair includes a first lever associated with a first rear wheel and demountably coupled to a first drivetrain, the first lever having a first brake thereon. The wheelchair also includes a second lever associated with a second rear wheel and demountably coupled to a second drivetrain, the second lever having a second brake thereon. Each drivetrain includes a chainring, a chain, and a freewheel, and each drivetrain has a fixed gear ratio. The freewheel of each drivetrain is actuated by manual pivoting of the lever associated therewith. In use, the wheelchair achieves changes in mechanical advantage when a user shifts the user's hands up and down the first and second levers.

Wheelchair with lever drivetrain

A positive displacement compressor designed for near isothermal compression. A rotor includes a curved sealing portion that coincides with a in an interior rotor casing wall. Liquid injectors provide cooling liquid. A gate moves within the compression chamber to either make contact with or be proximate to the rotor as it turns. Gate positioning systems position the gate in this manner, taking into account the shape of the rotor. Outlet valves allow for expulsion of liquids and compressed gas. The unique geometry and relationship between the parts provides for efficiencies and higher pressures not previously found in existing compressor designs.

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Ipswich, MA, United States of America

Harrison O'Hanley