Machine Tool Safety Patents For Sale

Whirlwind Tool Company founder and inventor David Butler has announced that he is selling his US Patents for disruptive technology related to machine tool safety. Patents US 8,082,825 and US 8,336,432 will stop machines in less than one second when his system senses a dangerous condition. Published patent application US 2015/0212512 A1 is also for sale. This patent application relates to (IoT: read more) data logging of machine tool safety practices which can be monitored and controlled remotely. This US patent is expected to issue in 2019 and will have a major impact on global workers-insurance industry for years to come. The Whirlwind systems are non-destructive. The machine can be immediately restarted and the operator learns of an unsafe operation of the machine. Whirlwind website visits number over a million hits and inquiries reflect a global demand for products from major and small business, governments, schools and individuals.

Prospective buyer inquires will be held in strict confidence through a suitable non-disclosure agreement.

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Black Box Prototype World's first 'Plug & Play' non-destructive flesh-sensing safety device for table saws & existing machine tools. Stops the saw blade in 1/8 of a second, with no injury to operator or damage to equipment.
Needs No Electrical Modification The Whirlwindâ„¢ BLACK BOX used with a typical 14" band saw, requires no electrical modification. Easily switch between tools.
Customized Safety Margin Whirlwind BLACK BOX accommodates various enclosures and shields for adjusting degrees of safety.
LED Blade Lights Enclosed LEDs provide a unique super-bright blade light to focus on the cutting action and enhance operator safety.
Classroom Application When properly supervised, children can experience machine woodworking. The Whirlwindâ„¢ BLACK BOX increases safety margin for novices.
Beyond the Basics Table saw miter cuts, bevels, narrow rip cuts, non-through cuts and dadoes have all been implemented in prototype. View more photos.
Dust Extraction Superior above-table saw dust containment and extraction reduces exposure and hazard.

Introducing 21st Century Woodworking Technology

The BLACK BOX 'Plug & Play' Flesh-Sensing Saw Safety Stop

Senses when fingers are in danger and STOPS the saw blade in 1/8 OF A SECOND!

Developed by veteran woodworker David Butler, the patent-pending Whirlwind Tool BLACK BOX table saw emergency blade brake is a simple bolt-on/removable device which can be easily and inexpensively incorporated into use with millions of existing saws and machine tools. The prototypes showcased on this site differ from all previous table saw blade guards and emergency blade brakes, with a built-in "electronic fence" blade enclosure. Removable, extended safety shields can be wide or narrow to offer varying safety margin depending on user comfort and experience.

If the operator approaches or touches the clear blade guard fence, the proximity detector will immediately shut down the saw motor and stop the blade, without damage, in one-eighth of a second — long before the operator can contact the spinning blade. The saw can be restarted almost immediately. Table saw miter cuts, bevels, narrow rip cuts, non-through cuts and dadoes have all been implemented with the BLACK BOX prototype.

Metal Cutting and Fabrication

Whirlwind Tool Saw Safety Brake for Metal Cutting

The BLACK BOX has been used for metal cutting and fabrication. With a simple modification to our woodworking guards we are able to cut metal on a band saw and two types of our table saws.

In addition to the revolutionary, new BLACK BOX system showcased here, Whirlwind health and safety technologies have been successfully implemented using the Makita bench top, Delta, Powermatic and Rigid saws.


Key Features

  • Flesh-Sensing technology
  • Stops blade within 1/8 second
  • Plug & Play, removable
  • No electrical modifications
  • Varying degrees of protection
  • Inexpensive relative to market options
  • Non-destructive
  • Restart immediately
  • Fits existing saw/machine tools
  • Integrated LED lighting
  • Integrated sawdust removal

The Whirlwind Hot Dog Test


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