Pipes and tubular conduits – Structure
Reexamination Certificate
2000-05-04
2001-07-03
Brinson, Patrick (Department: 3752)
Pipes and tubular conduits
Structure
C138S178000, C138S121000, C138S114000, C138S108000, C248S049000
Reexamination Certificate
active
06253794
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention refers to a conduit having its particular application in the field of sanitary and heating installation and which is provided with a tube for conveying a fluid or for accommodating supply lines such as power supply lines or fluid-conducting pipes.
Plastic conduits find ever increasing use in the construction industry, one the one hand as waste water pipes and, on the other hand, as sanitary and heating pipes. Among others, plastic conduits are advantageous because of their light weight and the simple manner they can be placed, as well as their corrosion resistance. Further, plastic conduits have good noise insulating capabilities and are easy to mount.
There is a certain problem in placing plastic conduits on the surface, i.e. on the plaster. To this end, special tube clips are used to fasten the conduits to the substrate (plaster, but also wooden beams and the like).
SUMMARY OF THE INVENTION
It is the object of the present invention to provide a conduit for surface mounting that can easily be placed on the substrate.
According to the invention, the object is solved with a conduit, specifically for use in the field of sanitary and/or heating installation, provided with a pipe for conveying a fluid or for accommodating supply lines such as power supply lines or fluid-conducting pipes. This conduit is characterized in that the pipe is connected with a mounting material strip for fastening the pipe to a surface, an object or the like, the mounting material strip projecting laterally from the pipe (at least in one direction) and extending along the same. The fastening can easily be done by tacking or nailing, for example. Preferably, the mounting material strip extends beyond the pipe at both sides and is designed as film strip. Suitably, the mounting material strip extends tangentially to the pipe. Such a mounting material strip preferably comprises two different flange portions within which it can be fastened to the substrate.
The pipe of the present conduit is either a fluid-conducting pipe or an empty pipe for accommodating, and thereby mechanically protecting, a fluid-conducting pipe or other supply lines such as power supply lines. If the pipe of the present conduit serves as an empty pipe, it is advantageous to design the empty pipe as a corrugated pipe. Such corrugated pipes are flexible and can thus be bent easily and may be placed following bends.
The mounting material strip of the present conduit is suitably positively connected with the pipe, in particular by form fit, frictional engagement or material connection. Specifically, the mounting material strip is connected to or placed around the pipe by co-extrusion. In the latter case, the cross-sectional shape of the mounting material strip is shaped substantially like an &OHgr;. In this embodiment of the invention, the mounting material strip thus comprises a central connecting strip within which the mounting material strip encloses the pipe completely and from which two flange portions of the mounting strip extend laterally beyond the pipe.
As an alternative to the above described embodiment of the invention, the central portion of the mounting material strip does not enclose the pipe completely but only partly. In this central portion, the strip is preferably glued to the pipe.
Suitably, when the conduit serves as a protective pipe, particularly when designed as a corrugated pipe, the pipe will be provided from the beginning with a fluid-conducting inner pipe. Thus, a pipe-in-pipe system is provided wherein the inner pipe may be of plastic material, metal, or a plastic and metal composite.
REFERENCES:
patent: 4245924 (1981-01-01), Fouss et al.
patent: 5275506 (1994-01-01), Grimsley
patent: 5374138 (1994-12-01), Byles
patent: 6041829 (2000-03-01), Chancellor
Claussen Joerg
Dankbar Bernhard
Riesselmann Franz-Josef
Brinson Patrick
Diller Ramik & Wight
Hewing GmbH
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