Rail system

Details Rail system Rail system

2000-04-14

2001-10-02

Morano, S. Joseph (Department: 3617)

Railways: surface track

Roadbed

C238S005000, C238S264000, C238S283000, C238S382000

Reexamination Certificate

active

06296195

ABSTRACT:

CROSS REFERENCE TO RELATED APPLICATIONS
Applicants claim priority under 35 U.S.C. §119 of German Application No. P 197 46 215.4 filed on Oct. 21, 1997. Applicants also claim priority under 35 U.S.C. §120 of PCT/DE98/02952 filed on Oct. 5, 1998. The international application under PCT article 21(2) was not published in English.
BACKGROUND OF THE INVENTION
1. Field of the Invention.
The invention relates to a rail arrangement comprising
a rail, in particular a bullheaded rail comprising a rail head, a rail bridge and a rail foot, whereby the rail is provided with joint ties;
a driving track made of concrete or the like, with an integrated joint, in which the rail is seated, in particular in connection with a substrate; as well as
profiles made of elastomeric material specifically comprising
a base profile, which is arranged below the foot of the rail and provided with flanges on both sides, said flanges completely or partially gripping around the foot of the rail, whereby, furthermore, the base profile has a plurality of channels extending in the longitudinal direction of the rail, said channels mostly being arranged in the plane extending parallel with the underside of the foot of the rail;
two side profiles abutting the rail on both sides, whereby the side profile, if a bullhead rail is employed, preferably has a tracking groove on the side of the wheel rim; as well as
a joint tie coating.
2. The Prior Art
Based on the state of the art of a rail arrangement of the type specified above, as it is described, for example in published patent document DE 33 45 388 A1, the problems consists in providing a rail arrangement which, within the framework of communal traffic, permits a stroke of about up to 1.5 mm; which reduces tilting of the rail; as well as assures the mobility of the joint tie. Furthermore, the goal is to minimize the creeping current component and voltage corrosion.
SUMMARY OF THE INVENTION
Said problem is solved according to the characterizing part of claim
1
in that
the channels of the base profile have a rhombic cross sectional shape, whereby the channels located in the two edge areas of the base profile have a smaller cross section than the channels located in its center area, which causes the rigidity of the base profile to increase outwardly; and in that
the base profile, the two side profiles and the joint tie coating consist of an electrically insulating elastomeric material.
Useful developments of the rail arrangement as defined by invention are specified in claims
2
to
13
.


REFERENCES:
patent: 4231908 (1980-11-01), Pennino
patent: 4899933 (1990-02-01), Martin
patent: 5165598 (1992-11-01), Ortwein
patent: 5181657 (1993-01-01), Davis
patent: 5361986 (1994-11-01), Meier et al.
patent: 5735457 (1998-04-01), Bohm et al.
patent: 933 342 (1955-09-01), None
patent: 22 10 741 (1973-02-01), None
patent: 33 45 388 (1985-06-01), None
patent: 3345388-A1 (1985-06-01), None
patent: 38 34 329 (1989-04-01), None
patent: 3834329-A1 (1989-04-01), None
patent: 4223270-A1 (1994-01-01), None
patent: 94 17 436 (1996-03-01), None
patent: 9417436U1 (1996-04-01), None
patent: 2 154 635 (1985-09-01), None

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