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:
Jun. 29, 1999
Filed:
Jul. 07, 1997
Applicant:
Inventors:
M Earl Edwards, Jr, Trenton, GA (US);
Herbert E Jakob, Chattanooga, TN (US);
Assignee:
Pavement Technology, Inc., Chattanooga, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28B / ; B28B / ; B28B / ; B29C / ;
U.S. Cl.
CPC ...
264 71 ; 264333 ; 264338 ; 264D / ;
Abstract
A method for forming a test specimen from an asphalt concrete mixture includes providing a mold to receive a quantity of the mixture and adding a predetermined quantity of the mixture to the mold. The mixture in the mold is compressed at a pressure of at least about 7 psi while vibrating the mixture in the mold at a rate of at least about 2400 cycles per minute. The method also includes maintaining the vibration of and the application of compressing pressure to the mixture in the mold until the mixture obtains a predetermined mix design density within a range of about 90-97%.