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. 04, 1989
Filed:
Oct. 24, 1988
Applicant:
Inventor:
John B Whitaker, Jr, Wetumpka, AL (US);
Assignee:
Kershaw Manufacturing Company, Ind., Montgomery, AL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B / ; E01B / ;
U.S. Cl.
CPC ...
104 12 ;
Abstract
A combined tamper and compaction apparatus for use on a railroad track leveling machine utilizes hollow tamping tools which are inserted in loose ballast on either side of a cross tie. The tamping tools are vibrated to 'fluidize' the ballast and plungers mounted within the tamping tools force the ballast therein downwardly and outwardly beneath the ties. Thereafter the tamping tools with plungers extended are raised and lowered to compact the ballast.