An electrical power chord 31 may be provided for powering {TAIL ~ the compressor} 23 directly from {HEAD ~ a separate electrical source} such as an electrical outlet or battery pack or for recharging one or more of batteries 26 and 27 
An electrical power chord 31 may be provided for powering { TAIL ~ the compressor } 23 directly from { HEAD ~ a separate electrical source } such as an electrical outlet or battery pack or for recharging one or more of batteries 26 and 27
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH