An ice resurfacer is a truck-like vehicle or smaller device used to clean and smooth the surface of an ice rink

Ice rink

An ice rink is a frozen body of water and/or hardened chemicals where people can skate or play winter sports. Besides recreational ice skating, some of its uses include ice hockey, figure skating and curling as well as exhibitions, contests and ice shows...

. The first ice resurfacer was developed by Frank J. Zamboni in 1949 in the city of Paramount, California

Paramount, California

Paramount is a city in Los Angeles County, California, United States. According to the 2010 census, the city had a total population of 54,098 down from 55,266 at the 2000 census...

. Zamboni (zæmˈboʊni) is an internationally registered trademark, though the term is often used as a generic colloquialism for ice resurfacing vehicles.
The heart of an ice resurfacer is the "conditioner", a large device dragged behind the vehicle.