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:
Feb. 09, 1988
Filed:
Feb. 28, 1986
Teuvo Vuorenoja, Valkeakoski, FI;
KT-Suunnittelu Oy, Valkeakoski, FI;
Abstract
An extruder for the manufacture of concrete slabs, particulary hollow slabs, in a movable relationship with a casting mold. The extruder includes a feed hopper, at least one feeder, particularly an auger for generating internal pressure in the cast concrete, and at least one core member for generating a desired slab cross-section. The extruder in accordance with the invention has an assembly of at least one contoured core section which performs a combined movement of oscillatory rotation and longitudinal reciprocation to generate inside the molding space a compacting shear action in the concrete mix. The extruder in accordance with the invention is especially applicable for the production of profiled concrete objects with elongated shape at low noise and vibration levels.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile