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:
May. 21, 1991
Filed:
Mar. 15, 1990
Reinhard Wirtgen, D-5469 Windhagen, DE;
Other;
Abstract
A milling device for cutting up road surfaces which includes a roller-type milling body including a rotatably-mounted spiral conveyor, a plurality of rotary cutters carried on the spiral conveyor, the rotary cutters mounted for free rotation about their respective longitudinal axes. A plurality of retaining boxes is provided, each retaining box detachably connected by at least one screw in a respective trapezoidally-shaped positive radial recess in a wall of the spiral conveyor, each retaining box having a bore hole therein for receiving a respective one of the rotary cutters. The retaining boxes each have a trapezoidally-shaped shaft part for being matingly received in the trapezoidal recess with the narrow side of the trapezoidally-shaped shaft facing towards the spiral conveyor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile