William R. Hutchinson

Unloader valve having bypass valving means

Portable collapsible tower

Machine with at least two modes of operation and switching means for changing the machine mode of operation

Towing assembly for a portable machine

Portable compressor with system for optimizing temperature in compressor housing and method

Surface pattern for the front of a control panel of a portable machine

Integral apparatus for separating lubricant from a hot compressed gas and for cooling the separated lubricant

Air compressor pressure regulating valve system

Sound-attenuating enclosure with integral cooling ducts

Storage devices for portable compressors