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Flanges like the one shown in the picture at right are common in piping systems, pumps, motors, and other valved industrial equipment. They range in sizes and materials but many of the configurations are heavy and awkward to move.
Common practice in moving units that are too heavy to be physically lifted by individuals is to weld a lifting point to the flange for the attachment of a chain and pulley system.
This is time-consuming, requires a certified welder with weld quality testing, and results in a change to the original design.
In order to move heavy flanges more easily and without altering the structure of the flange, the Air Force has devised a pin that slides into one of the various bolt holes on the circumference of the flange.
A head on the end of the pin occupies the space between the flange and back flange.
Once inserted, a sleeve is rotated around the pin to engage a cam thereby securing the shaft in the bolt hole. A hoist attachment point is fixed to the end of the shaft where a cable or chain can be placed. This simple component can accommodate multiple sizes of flanges.
- Does not damage or re-configure the flange
- Allows for safer and easier movement of heavy and awkward flanges
- Businesses and entrepreneurs can license US patent 9,233,816 for commercialization
- TechLink provides licensing assistance at no charge