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In January 1964, David R. Snoeyenbos, while working for General Motors Corporation, revised the design of the air caster, and filed a patent for a “reversible air bearing support”. [4] General Motors Corporation manufactured air casters, or “air bearings” for several years, then sold the rights to Snoeyenbos, who moved to Decatur ...
Air casters are sometimes used in place of rolling casters. These require pressurized air to operate, which produces audible hiss that is undesirable in some situations, and are typically more expensive than rolling casters, but they have the advantage of "locking" the scenery securely in place when depressurized and, like swivel casters, they ...
Air caster: Gas flow is controlled through an air bag Aerodynamic: Foil bearing: Bearing surface is flexible, allowing large displacement and providing a good stability. Spiral groove bearing: Gas film is pressurized by grooves machined on one of the surfaces, achieving high load capacity and stability.
A caster (or castor) is an undriven wheel that is designed to be attached to the bottom of a larger object (the "vehicle") to enable that object to be moved. Casters are used in numerous applications, including shopping carts , office chairs , toy wagons , hospital beds, and material handling equipment.
Designed by Stephen Killough, after which the platform is named, with help from Francois Pin, wanted to achieve omni-directional movement without using the complicated six motor arrangement required to achieve a controllable three caster wheel system (one motor to control wheel rotation and one motor to control pivoting of the wheel). He first ...
An early wheel made of a solid piece of wood. A wheel is a rotating component (typically circular in shape) that is intended to turn on an axle bearing. The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating ...