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:
Nov. 17, 1992
Filed:
Mar. 13, 1991
Laszlo Tamas, Budapest, US;
Zsolt Paapenek, Budapest, US;
Attila Komaromy, Budapest, US;
Istvan Varszegi, Budapest, US;
Antal Tapai, Budapest, US;
Jozaef Kokai, Budapest, US;
Adrian Horvath, Budapest, US;
Laszlo Farkas, Solymar, US;
Jeno Fulop, Budapest, US;
Andras Piller, Budapest, US;
Istvan Dombi, Budapest, US;
Beton-es Vasbetonipari Muvek, Budapest, HU;
Abstract
A railroad bed and method for making, wherein a less compact asphalt layer is spread on top of a more compact one, a trough shaped ballast bedding element suitably of reinforced concrete is placed over the aforementioned asphalt layers, a slab bearing the rails is applied into the trough-shaped ballast bedding, and an elastic, plastic-modified bituminous mortar is injected into the space between the slab and the ballast bedding element.