Pipe joints or couplings – Side slide
Patent
1986-01-17
1987-12-15
Arola, Dave W.
Pipe joints or couplings
Side slide
403353, F16L 3726
Patent
active
047128143
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present arrangement relates to a coupling arrangement for the detachable coupling together of component parts. The components making up a coupling form part of pipework systems for gases and liquids or similar.
BACKGROUND
The need arises within a number of different areas to be able to connect different components together in such a way that they are held together, but in such a way that they can also be separated from one another once more. One type of coupling arrangement is designed for the transmission of forces such as tractive forces. Once coupling has taken place, it must permit certain movements to take place between the connected elements. An arrangement in accordance with the present invention is relevant, amongst other things, to the aforementioned type of coupling arrangement.
Coupling arrangements having this type of function have been disclosed previously, for example in U.S. Pat. No. 2,460,216, Dalton and U.S. Pat. No. 3,098,365, Pearson, both of which show one element with a pin and a second element with a sleeve into which the pin can be introduced in a certain position of rotation, whereupon it is locked by turning. A certain amount of angular displacement is permitted between the two elements in the locked position.
Other previously disclosed coupling arrangements exist, although these are not intended primarily for the transmission of forces in the connected state, but are intended instead to act as couplings in pipework systems for gases and liquids. It is possible, by means of such couplings, for pipe branches to be connected to connection points in the pipework system in such a way as to permit necessary equipment to be connected or the pipework system to be extended by means of hoses, for example. A number of different coupling arrangements of this kind have been disclosed and are used as a general rule either by being held together by means of a locking arrangement which can be released by means of a control device, or by turning the coupling components into the locked position, for which purpose they are provided with threads or bayonet fixings. In the case of certain couplings, in particular those intended for liquids, one or both of the parts of the coupling contain a self-sealing valve, which is opened only when the coupling is made, such that those pipe branches which can be connected together will remain closed so as to prevent leakage with the coupling arrangement in its disengaged state.
TECHNICAL PROBLEM
In the previously disclosed designs in accordance with the aforementioned Patent Specifications of power transmission couplings the specific surface load in the various relative positions between the elements is considerable even when the applied force is low, and these arrangements are not, therefore, suitable for high loadings and for frequent movements, since high wear will then occur.
Many disadvantages are associated with the previously disclosed fluid couplings referred to above. A serious disadvantage is that, if no self-closing valves are fitted, the component parts of the coupling will, if the pressure has not been interrupted before separating the coupling, be thrown away from one another, in which case personal injury may be caused, or at any rate an undesired escape of gas or liquids may occur at high pressures. Even if self-closing valves are fitted, the coupling components may still be thrown apart if the coupling is used at high gas pressures, because it is impossible to prevent a small quantity of gas from remaining trapped between the valves arranged in the two component parts of the coupling. Moreover, couplings with self-closing valves may be very difficult to connect together in the presence of pressure in the system, as it is also necessary in this case simultaneously to open the valves, which are under pressure. This is particularly noticeable in the case of grooved couplings which are pushed into engagement, although couplings which are screwed together can also be difficult to connect in the presence of pressure in the sys
REFERENCES:
patent: 1996218 (1935-04-01), Swanson
patent: 2396747 (1946-03-01), Parrott
patent: 4258940 (1981-03-01), Fudge
patent: 4279041 (1981-07-01), Buchholz
patent: 4418944 (1983-12-01), Haines
LandOfFree
Coupling arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coupling arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling arrangement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1215634