The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1999
Filed:
Jun. 13, 1997
Charles E Alsip, Benson, MN (US);
John P Ellingson, Benson, MN (US);
Harvey E Hoffman, Danvers, MN (US);
Jack D Messner, Wayzata, MN (US);
David G Trooien, Willmar, MN (US);
Iboco, Inc., Benson, MI (US);
Abstract
A salt-sand spreader for use for spreading materials onto road surfaces primarily where icing or slippery conditions occur. The spreader includes an applicator for coating the particles with a liquid prior to discharging the particles to tend to speed up the ice melting reaction and if a suitable coating is used to inhibit corrosive action of the salt. Additionally, the velocity of discharge of the particles from a discharge mechanism is sensed or correlated to fan speed and the discharge velocity is adjusted to match the forward speed of the vehicle so that there is essentially zero relative velocity between the particles and the ground when the particles strike the ground.