A sealant dispenser comprising: a hollow can which includes an accommodation chamber, an opening, a connection seat, chemical sealant, an insertion, and the two peripheral ribs formed on a bottom of the insertion. A sealant dispenser is fixed on an accommodation box in which an air compressor is accommodated, the accommodation box includes a fixing hole, a U-shaped protrusion formed on a lower end of the fixing hole, a positioning space defined on the fixing hole above the U-shaped protrusion, and a peripheral column surrounding around the fixing hole, the U-shaped protrusion and the positioning space. The insertion of the hollow can is inserted into the fixing hole of the accommodation box, and the sealant dispenser is rotated so that the two peripheral ribs of the insertion are retained with the positioning space of the fixing hole, thus fixing the sealant dispenser on the accommodation box.

An assembly can be used for packaging chemical compounds. The assembly includes a foil pack for storage of a one-component or multicomponent compound, and a dispensing device for the foil pack. The foil pack has at least one elongated foil bag designed to be non-rigid, and one rigid head part having at least one fastening portion for one end of the foil bag and an outlet opening for discharge of the compound, where the dispensing device has at least one receptacle for pushing in the at least one film bag. The at least one elongated foil bag has, in a filled condition, the form of a truncated cone, the diameter of which narrows in the direction of a longitudinal axis, starting from the respective fastening portion.

The embodiments of the invention as described herein relate to a tool or device for sealing exterior duct joints. The device is designed and configured to drive a semi-solid mastic or cement-like material through a hose and a custom designed applicator wand. The various embodiments of the invention include cordless, lightweight and portable versions. This tool is designed to assist in the sealing of ductwork. An extension on the end of the wand enables a user to reach several areas that are either difficult to access, or awkward to seal using traditional techniques. Various embodiments of the spreader head have been designed to perform better for different parts of the duct system. The user only needs a ladder to seal the top of the supply trunk duct, the remainder of the ductwork can be sealed standing on the floor.

A cartridge usable in a viscous-material dispenser includes a cylinder, a plunger in the cylinder, and a plurality of ribs extending radially from an outer surface of the plunger to an inner surface of the cylinder. The ribs are circumferentially separated by a plurality of clearances, and the ribs and the clearances extend in an axial direction. Each of the plurality of clearances is defined by two adjacent ribs. The ribs and clearances are configured to allow the venting of gas through the clearances during a beginning of a cartridge filling operation and to impede the movement of the viscous material through the clearances during a remainder of the cartridge filling operation such that, at an end of the cartridge filling operation, the ribs and bodies of the viscous material in the clearances form an airtight seal between the plunger and the cylinder.

Ethylene-based polymer, LDPE, is made in a high pressure polymerization process to comprising at least the step of polymerizing a reaction mixture comprising ethylene, using a reactor configuration comprising (A) at least two reaction zones, a first reaction zone (reaction zone 1) and an i reaction zone (reaction zone i where i>2), (B) at least two ethylene feed streams, each feed stream comprising a percentage of the total make-up ethylene fed to the polymerization process, in which a first ethylene feed stream is sent to reaction zone 1 and a second ethylene feed stream is sent to reaction zone i, and (C) a control system to control the percentage of the total make-up ethylene in the ethylene feed stream sent to reaction zone 1 and the percentage of the total make-up ethylene in the ethylene feed stream sent to reaction zone i.

A high pressure polymerization, as described herein, to form an ethylene-based polymer, comprising the following steps: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones, and at least one of the following a) through c), is met: (a) up to 100 wt % of the ethylene stream to the first zone comes from a high pressure recycle, and/or up to 100 wt % of the last ethylene stream to a zone comes from the output from a Primary compressor system; and/or (b) up to 100 wt % of the ethylene stream to first zone comes from the output from a Primary compressor system, and/or up to 100 wt % of the last ethylene stream to a zone comes from a high pressure recycle; and/or (c) the ethylene stream to the first zone, and/or the last ethylene stream to a zone, each comprises a controlled composition; and wherein each ethylene stream to a zone receives an output from two or more cylinders of the last compressor stage of a Hyper compressor system.

A portable electric powered or pneumatic powered paint system designed to worn in a typical workman's tool belt and thus accompany the painter as he moves from wall to wall and room to room without the restriction of electrical cords plugged into wall outlets or air hoses connected to an air compressor. The electrically powered embodiment of the invention consists of a paint reservoir, an electric paint pump, a power pack of two or more 18 Volt batteries, a paint applicator and associated paint supply tubing for transfer of paint from the reservoir to the paint applicator. The pneumatic embodiment of the invention replaces the electric paint pump and battery power pack with a pressurized air bottle and pressure regulator. Both embodiments of the invention provide the painter with a self-contained powered painting system.

A cartridge usable in a viscous-material dispenser includes a cylinder, a plunger in the cylinder, and a plurality of ribs extending radially from an outer surface of the plunger to an inner surface of the cylinder. The ribs are circumferentially separated by a plurality of clearances, and the ribs and the clearances extend in an axial direction. Each of the plurality of clearances is defined by two adjacent ribs. The ribs and clearances are configured to allow the venting of gas through the clearances during a beginning of a cartridge filling operation and to impede the movement of the viscous material through the clearances during a remainder of the cartridge filling operation such that, at an end of the cartridge filling operation, the ribs and bodies of the viscous material in the clearances form an airtight seal between the plunger and the cylinder.

A paste application device stores two starting components for mixing the starting components to form a paste and for application of the formed paste. The device comprises a two-component cartridge comprising two internal spaces, two feed plungers shiftable in the internal spaces and bordering the internal spaces on a first side of the two-component cartridge, and at least two dispensing openings by means of which the internal spaces are open on a second side of the two-component cartridge that is opposite from the first side. The device further comprises a hollow cylinder that is made of a plastic material and has one front face that is open and one front face that is partially closed, in which is situated an axially mobile plunger that has at least two pestles attached to it, wherein the at least two pestles are oriented in the direction of the open front face, wherein the open front face of the hollow cylinder is arranged to axially touch against the first side of the two-component cartridge, and a connector for a compressed gas cartridge extends through an opening in the pressure vessel wherein a flap valve can be used to regulate the volume flow of the starting components through the dispensing openings, and whereby the flap valve is operable by means of a rod assembly of the paste application device, whereby the rod assembly is supported with a clearance of at least 0.3 mm in at least one direction that is perpendicular to the main direction.

A cartridge for a viscous-material dispenser includes a cylinder and a plunger axially slidably fitted in the cylinder and dividing the cylinder into a filling chamber and a pressurizing chamber and includes a plurality of solid spacers in an annular gap between the plunger and the cylinder for maintaining a minimum spacing between the plunger and the cylinder. The spacers at least partially define a plurality of passages that fluidically connect the filling and pressurizing chambers and are configured such that a first portion of the viscous material extending from the filling chamber into the plurality of passages forms a seal together with the solid spacers to prevent a second portion of the viscous material located in the filling chamber from entering the plurality of passages.