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:
Jul. 15, 1986
Filed:
Feb. 06, 1984
Sture Eriksson, Karlstad, SE;
Armerad Betong Vagforbattringar Aktiebolag, Stockholm, SE;
Abstract
At peat mining peat is suspended in water to a slurry or suspension which is led to a dewatering plant. From the dewatering plant (13) return water is returned and used to heat the raw peat in connection with the mining area. The return water can be spread onto the moss over an area (11) at a suitable distance from the mining pit (2), thereby at least partially displacing the moss water and providing water for making a slurry, the moss water preferably being drained to the mining pit. The return water contains also a separated fine parts fraction of the peat as well as peat ash and/or other chemicals which break down the colloidal bonds of the peat and which preferably also raise the pH-value of the water which is drained into the mining pit together with said fine parts fraction.