Sleek, Secure Doors—No Trim Required

Industrial & Engineering

Traditional glass doors use a visible aluminum trim to hold the glass in place. While common, this design has several problems: it requires many parts (often eight per trim), making it expensive and complex to assemble. These multiple parts also increase the chances of failure. Worse, the trim creates a security weakness—an intruder can simply remove the trim to access and remove the glass panel. Finally, the trim obstructs the view and detracts from the modern, clean look many buildings aim for.

Core Features

This invention introduces a trimless door frame system made up of four sleek, solid segments that hold the glass without any visible trim. Each segment includes a built-in gripping channel with specialized clip-shaped features that securely grip the edges of the glass panel—either directly or with optional gaskets. These segments can be made from a single piece of aluminum or other materials, reducing complexity and cost. Reinforcement bars can be added to support door hardware like hinges or locks, making the design strong and durable.

Inventive Step

What’s truly novel is the elimination of trim altogether. The integrated gripping channel in each frame segment replaces traditional external clips or trim pieces. This not only simplifies the structure but also increases security and visual appeal, all while reducing manufacturing time and part count.

Benefits

  • Fewer parts = less cost and fewer failure points.
  • Better security—glass can’t be removed without breaking it.
  • Sleek appearance with no obstructive trim.
  • Easy to assemble and install.
  • Flexible use with different materials (glass, wood, recycled plastics).

Broader Impact

This innovation can transform modern architecture by offering a more secure, sustainable, and aesthetically pleasing door design. It also opens the door—literally—for greener materials and simpler manufacturing, aligning with trends in sustainable construction and minimalist design.