Excavating – Snow or ice removing or grooming by portable device – Snow or ice surface groomer
Reexamination Certificate
2005-05-16
2009-06-09
Mathew, Fenn C (Department: 3764)
Excavating
Snow or ice removing or grooming by portable device
Snow or ice surface groomer
C239S002200
Reexamination Certificate
active
07543400
ABSTRACT:
A machine towed by a snowmobile that forms parallel cross country snow skiing tracks and having a water container mounted thereon, which streams water through two water outlet ports by gravity and assist from the use of an air pump, powered by a storage battery to the bottom portion of the skiing tracks, where the water turns to ice in below freezing temperatures, thus imparting a slippery surface to the tracks, which provides an improved skiing surface that enhances the gliding action for the enjoyment of a skier.
REFERENCES:
patent: 3675857 (1972-07-01), Bourton
patent: 3761020 (1973-09-01), Tropeano et al.
patent: 6793148 (2004-09-01), Ratnik
patent: 19900113229 (1991-10-01), None
patent: 1995031009-F25C3104 (1997-05-01), None
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