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Method for ploughing snow and a snow plough
   
Document Number
US Patent 6813848
Issued Date
November 9, 2004
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Inventors
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Abstract
A method of plowing snow from a site using a snowplow with at least two plow blades (5) forming together a plowing angle and there being on the plowing site fixed objects, such as airport lamps (1), rising over the site surface. In the method, when the snowplow faces an object, the plow front end is opened and the area with the object on it is left unplowed by the open front end, with this unplowed area then being cleaned by brushes (6,7) in the rear of the plow front end.
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Number of Claims:
10
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Owner
Patria Vammas Oy (Vammala,FI)
Published
November 9, 2004
Application Number
10/398,406
Filed
July 21, 2003
US Classification
37/222   37/273
Int'l Classification
E01H   5/06   (20060101)   E01H   5/09   (20060101)   E01H   5/04   (20060101)  
Examiner
Assistant Examiner
Priority Data
Oct 05, 2000 [FI] 20002190
USPTO Field of Search
37/196   37/197   37/221   37/222   37/232   37/272   37/273   37/274   37/279   37/280   37/283   15/340.1   15/340.3   15/340.4   15/78   15/82   15/87  
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Claims
Description
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