Sliding throttle valve type carburetor

Slow fuel controlling device for carburetor

Slow fuel supply system

Sonic carburetor

Sonic flow carburetor with fuel distributing means

Sonic flow variable area venturi carburetor

Sparger for producing gas bubbles in a liquid

Sprinkling apparatus for cooling tower

Starting aid for small internal combustion engines

Starting aid for small internal combustion engines

Starting assembly for a carburetor

Starting assembly for a carburetor

Starting facilities for internal combustion engine caburetors

Steam condensing apparatus

Steam conditioning butterfly valve

Steam conditioning valve

Steam injection heater with dual-sealing assembly

Steam injection water heater

Steam throttle valve

Steam-generator temperature control and optimization