In supporting the curved lower portion of a thin-walled plastic container against deflection due to top loading during a filling, capping or like operation in order to prevent damage thereto, the improvement which involves confining support to a localized curved area of such lower portion only while maintaining a seating ring section substantially unsupported, thereby effectively accommodating containers for damage-resistant loading which have incrementally increased in height or assumed slightl...

Double walled smokestack apparatus is provided in accordance with the teachings of the instant invention having substantially independent, load bearing inner and outer portions which are concentrically disposed to form a thermally insulating air space therebetween. This is achieved according to an exemplary embodiment by providing breeching and top cap arrangements intermediate the inner and outer portions which are configured in such manner to accommodate differential thermal expansion between ...

A light walled circular metallic conduit including a first conduit member and a second conduit member. An expanded section is at one end of the first conduit member and an end of said second conduit member is snugly telescoped within said expanded section of said first conduit member. The expanded section has external threads thereon and a nut is provided which is internally threaded. Inside the nut is a split ring. The nut encircles a seal. Upon tightening the nut the split ring bites into the ...

The present invention provides a means for mounting the inner pipe within the outer pipe of a double-walled pipe used in reverse-circulation drilling so that torques imparted to the outer pipe will not be imparted to the inner pipe, in order to avoid failure of the inner pipe. The inner pipe has a bushing slidably received thereon at each end, the bushing being affixed, as by a plurality of welded circumferentially spaced ribs, to the inner wall of the outer pipe so that the inner pipe is free t...

Thin-walled ovenable parts made from polybutylene terephthalate.

A foldable display tray comprising two pairs of opposed hollow parallel wall panel arrays defining a generally rectangular bottom support panel including means for locking intersecting ends of said wall panel arrays together to prevent collapse thereof and a blank for forming said tray.

Metal containers, particularly for beer, have been made from stainless steel which is compatable with beer or aluminium which is specially coated to make a compatable inner surface. The stainless steel container is expensive when the wall thickness is such as to withstand rough handling and the cheaper aluminium container has a limited life depending on the internal coating. The present invention provides a double wall container of which the inner wall is of thin stainless steel. The invention s...

A walled structure of cast concrete is provided having a vertical sheet of flexible corrosion-resistant sheet material formed to the desired wall contour and having an exposed face surface, a series of vertical ribs on the sheet opposite the face surface, a series of spaced support members engaged in a base support having a U-shaped receptacle on the top thereof receiving the bottom edge of said sheet to hold the bottom edge in a desired selected position, a plurality of spaced vertical standard...

A vacuumed formed thin-walled, plastic soft drink dispensing cup is disclosed which has a stacking structure at the lip formed by a short inwardly tapered conical section disposed between a rolled lip at the upper end and an outwardly flaired section at the lower end which forms a downwardly facing annular shoulder having an arcuate cross section adapted to mate with the rolled lip of a like cup in a nested stack.

The invention is drawn to a double-walled cooking pot having an outer pot, and an inner pot arranged in said outer pot and having a side wall defining a continuous inner surface to receive the product to be cooked. The side walls of the outer pot and inner pot are connected to one another at their bottom portions by a bottom plate made of thermally conductive material and at their upper portions in a manner which forms a discharge rim. To provide a double-walled cooking pot in which it is possib...