Air compressor with shut-off mechanism

A compressor system comprising:

• a gauge having a gauge face and a rotatable member with a needle stop, said needle stop being movable relative to the gauge face from a first position indicative of a first pressure to a second position indicative of a second pressure, said gauge further having a first needle rotatably coupled to a gauge shaft, and a second needle fixably coupled to the gauge shaft, and a spring disposed between the first and second needles, said spring configured to bias the first needle into the second needle so rotation of the gauge shaft in response to changes in pressure in an output line of the compressor system, causes relative rotation of both the first and second needles with respect to the gauge face;
• a first pump fluidly coupled to the gauge, wherein a user settable shut-off mechanism cuts power to the first pump when the first needle reaches the needle stop;
• and
• wherein the second needle is configured to display the pressure in the output line and wherein the second needle is movable to a third position away from the first needle indicative of a third pressure greater than the second pressure when the first needle has engaged the needle stop.

A compressor system comprising:

• a first pump having a first compressed air output, said first pump being driven by a D/C motor;
• a second pump having a second compressed air output, said second pump being driven by an A/C motor;
• and
• a manually controlled switch which allows the user to select one of the D/C motor or A/C motor and disengage the other of the D/C motor or A/C motor;
• wherein said first and second compressed air outputs being fluidly coupled to a gauge having a gauge face and to a system hose, said gauge having a rotatable member having a movable needle stop which functions to interrupt power to one of the D/C or A/C motors upon engagement of a first needle, said needle stop being movable from a first position indicative of a first pressure to a second position indicative of a second pressure with respect to the gauge face wherein the gauge has a second needle which is configured to display a pressure greater than the second pressure, independent of a location of the needle stop.