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:
Sep. 10, 1996
Filed:
Dec. 13, 1994
Abstract
A ballast cleaning machine comprises a machine frame supported on undercarriages running on the track and carrying a ballast screening arrangement, a ballast excavating device including a revolvable excavating chain arranged to deliver excavated ballast to the screening arrangement for cleaning the excavated ballast, a conveyor arrangement disposed to receive the cleaned ballast from the screening arrangement and to discharge the cleaned ballast for support of the track, a laterally and vertically adjustable suction pipe having a suction opening at one end for receiving ballast, and a vacuum device connected to an opposite end of the suction pipe for applying sub-atmospheric pressure to the suction opening and thereby to suck up ballast through the suction pipe.