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To protect our designs and our customers, it is important to be aware of the patents and trademarks that apply to our products. Look for the KENT Systems Name for quality, compatibility and proper function.

The KENT Systems product has a number of patents. All of our Quick Coupling products are covered by at least one of the following patents.

  • The KENT Systems product line (Quick Radial) is patented.
  • The Shut-Off incorporated in the KENT Systems (Quick Check) is patented.
  • The locking spring used on the KENT Systems product is patented.
  • The distinct barb used on the KENT Systems products is patented and under license from Value Plastics, Inc. (Value Plastics 500 Series Barb)



The KENT Systems distinct Barb Design number 1 is manufactured under license from Value Plastics, Inc. Value Plastics 500 Series profile is composed of blended radii giving it the distinct look.
Patent D388,876 \


The KENT Systems Quick Disconnect Radial Detent is used to connect the KENT Systems collections 1, 3 and 4.
Patent 5,937,885


The KENT Systems Shut-off valve is activated when the KENT Systems components are engaged.
Patent 6,305,724


The KENT Systems Swivel components allow for "knot free" tubing installations.
Patent 6,616,197


The KENT Systems Spring is used to ensure a secure connection has been made and prevents unintentional disconnections.

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