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Concealed Door Loop

This patented Concealed Door Loop (CDL) is a low cost method of transferring low voltage power from the door frame to the locking device. Whereas typical door loops are surface mounted and remain constantly visible, the CDL slides into the door and/or frame completely concealing itself when the door is closed. Designed for Continuous and Butt hinge applications that are either full mortise, half mortise or half surface and have a standard throw. Commonly installed where ETH hinges are cost prohibitive and surface door loops are not desired. The CDL’s aesthetic appeal will benefit retrofits and new installations alike.

Models for butt & continuous hinges:

  • CDL-AL – Standard 6″ length with aluminum finished caps
  • CDL-BLK – Standard 6″ length with black anodized finished caps
  • CDL-AL-FX – Standard 6″ length with aluminum finished caps & 1 side fixed
  • CDL-BLK-FX – Standard 6″ length with black anodized finished caps & 1 side fixed

Models for 3/4″ offset Pivots:

  • CDL-AL-EXT – 12″ length with aluminum finished caps – door side fixed, frame side extended for wire guidance
  • CDL-BLK-EXT – 12″ length with black anodized finished caps – door side fixed, frame side extended for wire guidance
  • CDL-AL-EXT2 – 18″ length with aluminum finished caps – door side fixed, extended on both sides for wire guidance
  • CDL-BLK-EXT2 – 18″ length with black anodized finished caps – door side fixed, extended on both sides for wire guidance

Literature

CDL’s for Butt Hinge & Continuous Hinge

CDL’s for 3/4″ offset Pivots

Video