Fusion isn't a variation on a sewn bag. It's a different way of building one — and the portfolio below protects all four parts of it: the stitchless bag, the heat-fused seam method, the machinery that makes the seal, and the test that verifies it.
The product claims: a bulk bag whose containment area is closed by heat, not thread — including the baffle, the reinforced discharge, and lift loops that attach without piercing the bag.
The Fusion bag itself. A stitchless, highly-oriented polypropylene bag whose top, body, bottom, fill spout and discharge tube are all joined by airtight heat-fused joints instead of stitching.
Baffle inserts heat-sealed to the bag body with a hot-melt film, using tab geometry that counters the peel forces a loaded baffle strap puts on the joint.
A reinforcing fabric layer beneath the heat-sealed bottom-to-discharge joint that prevents failure at the square corners of the discharge opening.
The earlier grant in the reinforced bottom-and-discharge family, covering how the reinforcer, discharge tube and bottom are overlapped and sealed.
Lift loops carried on an intermediate fabric layer that heat-fuses to the bag — so attaching the loops never punches stitch holes through the containment area.
The founding Fusion patents — the method every Fusion bag is built on.
The most recent grant in the founding method family, continuing protection on the coated-face-to-coated-face heat-fusing process.
A continuation in the same method family, keeping the core heat-fused seam process protected as the line evolved.
Further protection on producing polypropylene bags whose seams are formed by heat rather than thread.
Continues the founding method — heat applied below the fabric's melting point to fuse coated faces into a seam, leaving the fabric itself undamaged.
The patent Fusion is built on, filed in 2014: place coated face to coated face, apply heat below the fabric's melting point, and form seams that retain at least 85% of fabric strength with no sewing machines.
A seal is only as good as the bar that makes it. These cover the seal bar assembly, the carrier plates that run the line, and the sensorless control that holds temperature on every cycle.
Temperature control with no sensor touching the bar: the PLC reads voltage and current feedback, computes each heating element's real-time resistance, and derives its temperature from that.
The earlier grant in the sensorless control family — the basis for holding seal temperature to a computer-controlled setpoint on every cycle.
The seal bar itself: assemblies that self-align during sealing so pressure lands evenly across the whole seal area, with a single-piece heating element.
The carrier plates that move parts down the sealing line — guiding placement, checking that placement is correct, and setting up tooling.
Fusion's quality claim rests on a test — and the test is patented too.
The most recent grant covering the peel-strength test method and the tester used to run it.
A continuation of the lift-loop test family, protecting the process that turns a peel reading into a pass/fail on lifting safety.
A hand-held tester that measures peel strength at a lift-loop heat seal as a reliable indicator of shear strength — the check confirming a bag meets the industry's 5:1 safety factor.
Fusion is also protected internationally, alongside the registered trademark.
The Fusion stitchless bag protected in China — a needle-free, highly-oriented polypropylene bulk bag joined by airtight heat-fused joints.
The Fusion production method protected in Brazil.
The registered trademark protecting the Fusion® mark and logo.
The portfolio above is what a Fusion license gives you access to — the bag, the method, the machinery, and the test. Tell us about your operation and we'll walk you through it.