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:
Mar. 07, 2000
Filed:
Mar. 13, 1998
Thomas Roger Campbell, Chattanooga, TN (US);
Astec Industries, Inc., Chattanooga, TN (US);
Abstract
A milling machine is disclosed, which machine includes a frame, a drive mechanism for advancing the machine across a surface to be milled, and a milling assembly mounted on the frame of the machine for cutting a width of material from the surface in the path of the machine. The milling assembly includes a generally cylindrical milling drum having a plurality of cutting teeth, which drum is mounted for rotation about its axis. The milling assembly also includes a vibratory assembly which is mounted so as to impart vibration to the milling drum. The vibratory assembly includes an elongate shaft, a drive mechanism for rotating the shaft, and an eccentric weight that is mounted on the shaft. The eccentric weight has a non-symmetrical distribution of mass about the shaft so that vibration will be created upon rotation thereof. Also provided is a vibration isolator for isolating the vibratory assembly so as to limit the transmission of vibration created thereby to the frame of the machine.