A pressure indicator is disclosed having a coupling body and an indicator member positioned within the coupling body. The coupling body has an open first end and an open second end, an inside surface and an outside surface extending from the open first end to the open second end. The inside surface surrounds a coupling body cavity. The outside surface is threaded adjacent to the second end. The coupling body is sized and dimensioned to be threaded into a bung hole of a static storage container. The indicator member is positioned within the coupling body cavity in a sealing relationship. The indicator member, biased to a first position, is movable from the first position within the coupling body cavity to a second position outside of the coupling body cavity responsive to the coupling body being exposed to a pressure within the static storage container above a predetermined pressure threshold.

A tank assembly. The tank assembly comprises a shell, a plurality of conical dispensers, a plurality of drawtubes, a plurality of drawtube apertures, a slurry reservoir, one or more spray equipment and a slurry mixture. The slurry reservoir comprises a fluid reservoir within the shell of the tank assembly. The slurry reservoir comprises an upper reservoir and a conical dispensers reservoir. The conical dispensers reservoir can comprise a fluid space within the plurality of conical dispensers. each among the plurality of drawtubes comprise a drawtube axis. The plurality of drawtubes comprise at least a first drawtube and a second drawtube.

A tank assembly. The tank assembly comprises a shell, a plurality of conical dispensers, a plurality of drawtubes, a plurality of drawtube apertures, a slurry reservoir, one or more spray equipment and a slurry mixture. The slurry reservoir comprises a fluid reservoir within the shell of the tank assembly. The slurry reservoir comprises an upper reservoir and a conical dispensers reservoir. The conical dispensers reservoir can comprise a fluid space within the plurality of conical dispensers. each among the plurality of drawtubes comprise a drawtube axis. The plurality of drawtubes comprise at least a first drawtube and a second drawtube.

A tank for the storage of liquid or gaseous substances with a fiber-reinforced plastic sheathing, which limits at least one interior space for holding the materials to be stored. At least one circumferential section of the fiber-reinforced plastic sheathing comprises an evacuable sandwich structure, which completely encloses the circumferential section. As a result, the tank has a low weight with a high thermal insulation capacity. Furthermore, a reliable explosion protection of the tank is provided. Furthermore, a method for manufacturing a tank for the storage of liquid or gaseous substances is provided.

A tank for the storage of liquid or gaseous substances with a fiber-reinforced plastic sheathing, which limits at least one interior space for holding the materials to be stored. At least one circumferential section of the fiber-reinforced plastic sheathing comprises an evacuable sandwich structure, which completely encloses the circumferential section. As a result, the tank has a low weight with a high thermal insulation capacity. Furthermore, a reliable explosion protection of the tank is provided. Furthermore, a method for manufacturing a tank for the storage of liquid or gaseous substances is provided.

A bearing assembly for a door linkage. The bearing assembly is placed about a shaft which runs through a central opening in an arm, and the arm rotates about the shaft. The bearing assembly comprises a central composition bushing, a boss which is rotationally locked with the arm, and a plate. The central opening is large enough such that all the elements of the bearing assembly can be removed without disassembling the arm. The plate retains the elements of the bearing assembly in place when the arm is in use. The plate may also provide torque transmission between the boss and the arm.

A bearing assembly for a door linkage. The bearing assembly is placed about a shaft which runs through a central opening in an arm, and the arm rotates about the shaft. The bearing assembly comprises a central composition bushing, a boss which is rotationally locked with the arm, and a plate. The central opening is large enough such that all the elements of the bearing assembly can be removed without disassembling the arm. The plate retains the elements of the bearing assembly in place when the arm is in use. The plate may also provide torque transmission between the boss and the arm.

The invention is a device for sealing a hole or valve in a petroleum tank to prevent emissions, while optionally also automatically greasing a cable in a measured amount to combat friction and a method of use of such device, along with methods of manufacture and use.

A method of manufacturing a cylindrical cargo container includes: providing a plurality of rigid panels together formable into a cylindrical shell; forming a first semi-cylindrical shell from a first set of the panels; forming a second semi-cylindrical shell from a second set of the panels; forming the cylindrical shell from the first semi-cylindrical shell and the second semi-cylindrical shell; forming a collar conformably encircling the cylindrical shell; constricting the collar to compress joints formed at abutting edges of pairs of adjacent panels; rolling the cylindrical shell and collar to bring respective joints of pairs of panels to a lower position, and welding an inside seam of the joint when at the lower position; removing the collar from the cylindrical shell; and rolling the cylindrical shell to bring respective joints of pairs of panels to an upper position, and welding an outside of the joint when at the upper position.

A method of manufacturing a cylindrical cargo container includes: providing a plurality of rigid panels together formable into a cylindrical shell; forming a first semi-cylindrical shell from a first set of the panels; forming a second semi-cylindrical shell from a second set of the panels; forming the cylindrical shell from the first semi-cylindrical shell and the second semi-cylindrical shell; forming a collar conformably encircling the cylindrical shell; constricting the collar to compress joints formed at abutting edges of pairs of adjacent panels; rolling the cylindrical shell and collar to bring respective joints of pairs of panels to a lower position, and welding an inside seam of the joint when at the lower position; removing the collar from the cylindrical shell; and rolling the cylindrical shell to bring respective joints of pairs of panels to an upper position, and welding an outside of the joint when at the upper position.