Compressed Air Indicator

The Compressed Air Indicator is a device which indicates the presence or absence of compressed air in a pneumatic line.

  • Eliminates Trial and Error Method
  • Uses Spring Return System
  • Viewing Window Shows Internal Indicator Status
  • Saves Time and Effort
  • Ideal for Any Shop Environment


Utility Patent #9,310,228

Story Behind the Invention

Inventor James E. Rapp of Eagan, MN has created a device which indicates the presence or absence of compressed air in a pneumatic line.

Air operated tools, such as impact wrenches, and cutting chisels are common tools found in almost any mechanical shop, or motor vehicle repair center. Pneumatic power is also used to operate other tools around homes and businesses. When these tools are connected to an airline, it is not intuitively obvious as to the presence of compressed air or not. The user must go ahead with the connection of the tool, and then try to operate the tool to determine proper air pressure. This results in wasted time and possible repeated trips back and forth to the compressor. The lack of any indication may impact safety, should a user begin to work on a pneumatic piping system thinking it is unpressurized, when it is actually not. Inventor Rapp has created a means by which the presence of compressed air in a pneumatic piping system can be easily determined, without these disadvantages.

This clever new invention eliminates the trial and error method andcan be incorporated into existing fittings/connectors with modifications. It uses a spring return system. A viewing window shows an internal indicator status. It saves time and effort. It is ideal for any shop environment. The use of the Compressed Air Indicator allows for the easy determination of the presence of compressed air, in order to increase safety, and save time.

Wishlist 0
Continue Shopping