An ice resurfacer is a truck-like vehicle used to clean and smooth the surface of an ice rink, originally developed by Frank J. Zamboni in 1949. Frank J. Zamboni & Co, Inc. and other companies manufacture ice resurfacing machines, and many people colloquially refer to ice resurfacers as a Zamboni, although the name Zamboni is a federally and internationally registered trademark. Technology The heart of an ice resurfacer is the conditioner, a large device dragged behind the vehicle. A large, very sharp blade, similar to those used in industrial paper cutters, shaves the surface off the ice, and an auger in front of the blade sweeps the shavings to the center of the conditioner, where a second auger (or, in early models, a paddle-and-chain conveyor) picks them up. Behind the blade, wash water is often sprayed on the ice by nozzles at either end of the conditioner; this wash water is confined inside

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