Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – With protection or indication of pipe or trench
Reexamination Certificate
1999-05-07
2001-03-27
Lillis, Eileen D. (Department: 3673)
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
With protection or indication of pipe or trench
C405S172000, C248S049000
Reexamination Certificate
active
06206613
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to devices for laying and stabilizing pipes and conduits, and more specifically to devices for supporting a flexible piping installation such as waste lines temporarily strung between the sewer outlet of a recreation vehicle and a dump inlet.
BACKGROUND OF THE INVENTION
It is imperative that pipes designed to evacuate sewage and waste from a site be laid in a vertically linear fashion in order to avoid siphons and pockets into which the sewage can be trapped, settle and eventually clog the pipe. This requirement is particularly critical for flexible pipes which are used, often in a temporary fashion, to carry waste from a recreational vehicle storage tank into a dump reservoir or public sewer line. If the recreational vehicle is to remain for a certain time in a campsite or similar facility provided with sewer inlet, it is desirable that the sewer connection to the recreational vehicle be laid in a stable and sturdy, yet quickly removable manner. The common practice has been for campers and recreational vehicle enthusiasts to prop their sewer lines with bricks, wood blocks and other ad hoc implements. Those installations are subject to be kicked out of alignment, and are prone to sag between support points.
In many camping sites, connection to utilities such as water and electricity are often provided near the sewer inlet. It is therefore customary to run a water line or electrical cable along the sewer pipe toward the vehicle. The accumulation of these various lines and conduits not only can lead to unsightly and problematic entanglements, but also constitute tripping hazards, and raise other safety concerns.
The present invention results from an attempt to address these various aforesaid shortcomings.
SUMMARY OF THE INVENTION
The principal and secondary objects of this invention are to provide a convenient, and quickly installable and removable means for laying a temporary, flexible piping installation at a desired gradual descent above a ground surface, and to achieve a certain degree of stability while preventing low points in the line where liquid such as sewer waste can accumulate, as well as to provide a means to conveniently run together a plurality of conduits in an orderly and attractive fashion.
These and other objects are achieved by means of a series of components comprising a plurality of height-adjustable pipe-supports whose heads are in the form of circular clamps designed to securely hold a pipe. Gutter channels are also provided to span two adjacent supports and prevent sagging of the supported pipe therebetween. The height of the supports can be increased by use of a convenient extension interposed between the clamping head and the support footing.
REFERENCES:
patent: 675104 (1901-05-01), Oberle
patent: 2684222 (1954-07-01), Miller
patent: 3115726 (1963-12-01), Sayles
patent: 3809348 (1974-05-01), Di Laura
patent: 4244542 (1981-01-01), Mathews
patent: 4406434 (1983-09-01), Schneckloth
patent: 4407472 (1983-10-01), Beck
patent: 5871306 (1999-02-01), Tilcox
patent: 5906341 (1999-05-01), Brown
Buchaca John D.
Charmasson Henri J. A.
Lagman Frederick L
Lillis Eileen D.
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