'Zamboni Dave' conquers Cornell hockey fans cleaning ice in costume (http://www.ithacajournal.com/article/20140124/NEWS01/301240058/Our-People-Zamboni-Dave-conquers-Cornell-hockey-fans-cleaning-ice-costume). Great Pictures.
The article states that the Zamboni was replaced by an Olympia in the early 1980's.That's wrong. The brand used between the Zamboni and the Olympia was a Rinkmaster. I even Googled this, to make sure, and found a reference. From page 29 of the January/February 1993 edition of the "Cornell Alumni News":
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The 1956 Zamboni lasted until1981, when a new machine—a Rinkmaster—was called on to resurface the ice.
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Not sure if this URL will work as a link to the .PDF or not:
https://www.google.com/search?q=rinkmaster+lynah&rlz=1C1CHFX_enUS540US540&oq=rinkmaster+lynah&aqs=chrome..69i57j69i59j69i60.3177j0j7&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8