Heating – Heat generator with an associated work support or heat...
Reexamination Certificate
2000-04-05
2001-10-09
Wilson, Gregory (Department: 3749)
Heating
Heat generator with an associated work support or heat...
C015S246300, C015S358000, C015S360000, C222S092000, C222S105000, C220S001500, C220S009200, C220S592280
Reexamination Certificate
active
06299437
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
BACKGROUND OF THE INVENTION
The present invention relates to an improved collapsible tank structure for a freight container which is convertible to selectively carry solid freight or bulk liquid freight.
By way of background, there are certain congealable liquids, such as printer's ink or chocolate, which are transported in freight containers. These liquids must be maintained at an elevated temperature to prevent congealing thereof. If the liquids are permitted to congeal, they will clog the liquid conduits. However, if the liquids are heated sufficiently to maintain their liquidity, congealing does not occur, and, further, the filling and emptying of the tanks is done more efficiently.
Also by way of background, there are variations in the placement of the liquid conduit associated with the opening in the bottom of a collapsible tank. These variations may be due to the requirement for different placements of the parts in different installations. However, it is necessary to insure that there is proper sealing of the tank liner and the gasket proximate the tank outlet. This requires that the bolts associated with the securing of the tank liner and the gasket be properly oriented regardless of the above-mentioned variations.
BRIEF SUMMARY OF THE INVENTION
It is the object of the present invention to provide an improved collapsible tank structure for a convertible freight container which includes a forced air heating system for maintaining liquidity of the tank contents.
Another object of the present invention is to provide an improved collapsible tank liquid opening conduit mounting and sealing structure. Other objects and attendant advantages of the present invention will readily be perceived hereafter.
The present invention relates to a collapsible tank comprising a collapsible tank comprising a flexible side, a bottom plate, a fluid opening in said bottom plate, a base underlying said bottom plate, a fluid conduit in said base and in communication with said fluid opening, and a hot air duct in said base.
The present invention also relates to a collapsible tank comprising a heating system for a collapsible tank comprising a collapsible tank, a flexible side on said collapsible tank, a bottom plate on said collapsible tank, a fluid opening in said bottom plate, a base underlying said bottom plate, a fluid conduit in said base, a first hot air duct in said base, a hot air heater, and a second hot air duct for effecting communication between said hot air heater and said first hot air duct.
The present invention also relates to a collapsible tank connection comprising a base, an outer rim on said base, a frame within said outer rim, a plurality of spokes extending between said outer rim and said frame, a tank opening within said frame, a first liquid conduit extending through said frame, a second liquid conduit in communication with said first liquid conduit and extending transversely thereto toward said tank opening and in communication therewith, a flange on said second conduit, an annular ring on said second conduit between said first conduit and said flange, a first annular plate having an outer portion welded to said ring, a second annular plate located on the opposite side of said first annular plate from said annular ring, a tank liner portion between said first and second annular plates, a gasket between said flange and said second annular plate, first bolts extending between said annular ring and said annular plate to clamp said gasket therebetween, and second bolts extending between said first annular plate and said second annular plate to clamp said tank liner portion therebetween.
The various aspects of the present invention will readily be perceived hereafter when the following portions of the specification are read in conjunction with the accompanying drawings wherein:
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Bonerb James J.
Bonerb Thomas J.
Bounerba David
Converta-Vans, Incorporated
Gastel Joseph P.
Wilson Gregory
LandOfFree
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