Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent
1988-03-22
1989-10-24
Foster, Jimmy G.
Receptacles
Receptacle having flexible, removable inner liner
Means for venting air trapped between the liner and its...
105423, 220 1B, 220 85B, B65D 8816
Patent
active
048755966
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a flexible vessel of plastic or elastomeric material for the transportation and storage of parcels, preferably vehicles or military equipment, gases, liquids ammunition or bulk material, which is provided with filling and discharge openings.
The invention furthermore relates both to a flexible vessel, which is located in a kind of trough, as well as to a container with vessels provided inside it.
It is, for example, known to transport liquids in a container, and for this purpose the container is provided with a tightly sealable inner vessel which is made of flexible plastic material. In its filled condition this vessel takes up substantially the form of the inner space of the container. In order to prevent the liquid present in the vessel from undesired movements (rolling or sloshing movements) during transportation, nets or straps are attached over the container such that these fix the plastic material vessel upright and against movement.
Due to the size of the common containers (the front surfaces have dimensions in the region of a few meters, whereas the length is about 10 meters), the manufacture of vessels suited for liquids is problematic, although they substantially correspond to the quadratic form of the container. There is also to be added the fact that, during transportation, the plastic material vessel is subjected to considerable load forces due to the movement of the liquid. For instance, a container may be transported on a freight car, which in turn runs off a roll-off slope and runs undampened against a stop block. In this case, such mass forces can result from the liquid that the plastic material vessel and the container may be destroyed.
The invention deals with the problem of improving the manufacture of liquid vessels suitable for containers and, moreover, to plastic material vessels and metal containers which are not subject to destruction by transportation load forces.
This is reached by means of a flexible vessel according to the claims.
The vessel according to the invention is made of a suitable material, that can also be multi-layered, by means of joining strips together to form a tube. This kind of production is technically known. Sufficiently long strips can, for example, be joined together by means of high frequency welding from webs of polar plastic material into a tube.
The two open ends of such a tube are then joined together by means of clamp connection parts fitting together. If a tube is selected which takes up the largest possible part of the inner space of a container, then, in order to close one opening along a straight line, one clamp connection part would be necessary which is longer than the width of the container. Therefore, in one embodiment of the invention, the two clamping parts are provided with clamping jaws, which have an undulated surface. If, for example, tooth rack-like clamping jaws with a tooth angle of 60.degree. are used, then, by means of the back-and-forth placing of the edge of the tube onto the undulated surface of the clamping jaws a clamping bar can be used, which only has a length of about a quarter of the circumference of the tube. In a suitable embodiment in accordance with the invention, such a length is selected so that the clamp connection parts fit exactly at both ends into the door opening of the container or are somewhat smaller. After the tubular vessel has been closed in this manner on both sides, the clamp connection parts are attached in the frame of the door opening of the container by means of expanding parts or the like at a particular height above the floor surface of the container. This attachment above the floor surface of the container leads to the fact that, on the one hand, the filled container always has a shape predetermined by the pretension of the vessel so that the oscillations during transportation can be counteracted and no destruction of the vessel occurs. To this, it is to be added that, by means of suitable attachment, the lower half of the tubular vessel is in a tensioned condition as well
REFERENCES:
patent: Re29721 (1978-08-01), Ukmar et al.
patent: 3658205 (1972-04-01), Kasravi
patent: 3756469 (1973-09-01), Clark et al.
patent: 4124136 (1978-11-01), Bjelland et al.
patent: 4461402 (1984-07-01), Fell et al.
patent: 4557400 (1985-12-01), Clarke
"Rubber Tanks for Oil Tested in Box Cars", author unknown, Popular Science Magazine, 6-1943.
LandOfFree
Flexible vessel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible vessel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible vessel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1584046