Pipe joints or couplings – Packed – Sleeve
Patent
1990-11-26
1992-10-06
Reese, Randolph A.
Pipe joints or couplings
Packed
Sleeve
285 21, 285292, 285297, 285238, 285917, F16L 1300
Patent
active
051525577
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a plastic coupling for joining together two tubes in such a manner that the connection can be effected and severed repeatedly.
Still more especially the invention relates to a plastic coupling that is principally manufactured of a material that is different from the material of the tubes.
2. Discussion of the Related Art
It is known that with conventional glues or adhesives it is possible for the glue to stick very strongly on the condition that both elements to be joined are manufactured of the same materials.
In some cases, for the connection of two tubes, a coupling sleeve is used made of the same material as the tubes to which it is bonded, for example in the case of tubes and coupling sleeves in polyvinylchloride.
In other cases, whereby greater demands are put on the tubes and/or connection, it is desirable to utilise other materials including, for example, composite materials, such as polyester.
In such cases the manufacture of coupling sleeves in a composite material is a difficult if not impossible task. For example, the coupling sleeves would not be sufficiently strong or not be capable of being shaped into the desired form.
SUMMARY OF THE INVENTION
The invention relates to a plastic coupling that does not have these disadvantages and that consequently is principally manufactured of a suitable, strong plastic, whereby this coupling can nevertheless be stuck very effectively onto a tube of another material.
For this purpose the invention has a plastic coupling that is characterised in that is consists of two parts which can be coupled to each other, each of which is principally formed by a plastic body that is provided with an axial bore destined to receive the extremity of one of the two tubes, whereby the inner wall of that bore is at least partially formed by a ring covering the entire circumference, for example in metal or plastic, in the same material as the corresponding tube or in another hood adhesive material and whereby each plastic body may be still further provided with connecting means with which both can be directly or indirectly coupled to each other.
A similar plastic coupling can be stuck very strongly to the tube with a suitable glue, whereby both tubes can always be separated again by uncoupling the two parts of the coupling from each other.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to show better the characteristics according to the present invention, some preferred embodiments are described hereafter, as examples without any restrictive character, with reference to the enclosed drawings, in which:
FIG. 1 shows a front view of one part of a plastic coupling according to the invention;
FIG. 2 shows a cross-section according to line II--II in FIG. 1;
FIG. 3 shows a cross-section similar to that of
FIG. 2 but whereby the part of the plastic coupling in question is bonded to a tube;
FIG. 4 shows a cross-section similar to that of FIG. 3 but in relation to the second part of the plastic coupling;
FIG. 5 shows a cross-section similar to that of FIG. 4 but for another embodiment;
FIG. 6 shows a cross-section of a plastic coupling with the objective of connecting two similar couplings as FIG. 4 or 5 shows, to each other.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The plastic coupling represented in the FIGS. 1 through 5 consists of two parts 1, 2 which can be screwed onto each other, each of which can be bonded respectively to a tube 3, 4, whereby both parts 1 and 2 of the plastic coupling are manufactured of a material that is different from the material of the tubes 3, 4.
Part 1 of the plastic coupling, shown in FIGS. 1, 2 and 3, is formed by a cylindrical body 5 in which an axial bore 6 with internal screw thread 7 and a smaller axial bore 8 connecting thereon are provided. As shown in FIGS. 1 and 2, the outside body 5 shows at least two flat surfaces 9 situated opposite each other, for placing a spanner or similar tool, in order to facilitate later tightening or loosening the coupling.
REFERENCES:
patent: 2739829 (1956-03-01), Pedlow
patent: 2785910 (1957-03-01), Munger
patent: 3572392 (1971-03-01), McLarty
patent: 3819207 (1974-06-01), Leopold, Jr.
patent: 4635972 (1987-01-01), Lyall
patent: 4810010 (1989-03-01), Jones
patent: 4893848 (1990-01-01), Melcher
patent: 4903998 (1990-02-01), Stanley
patent: 4913465 (1990-04-01), Abbema et al.
patent: 5028081 (1991-07-01), Fournier
Aberle Timothy
Jonaco GmbH
Reese Randolph A.
LandOfFree
Plastic coupling with ring for adhesion to a tubular member does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plastic coupling with ring for adhesion to a tubular member, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plastic coupling with ring for adhesion to a tubular member will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1184846