A mixing and dispensing device (1) for preparing and applying an adhesive consisting of at least two components, comprises a syringe body (2) which encloses a substantially cylindrical cavity (3), wherein the cavity (3) is divided into at least two chambers separated from each other by a movable separating element (6), whereina first chamber (4) has a first component (13) of the adhesive anda second chamber (5) has a second component (14) of the adhesive, wherein a flow path (11) between the first chamber (4) and the second chamber (5) can be released by moving the separating element (6).

A grease gun cylinder walled cartridge adapted for direct attachment to any of a variety of grease gun head constructions and grease pumping systems, wherein the cartridge wall can be of any color or completely clear and see through, wherein the grease column within the cartridge is pressured toward and through an inlet port in the gun head, which port opens on the section stroke of a piston mounted in said cylinder into a loading portion of a cylinder of the grease pumping system, and wherein the grease column pressuring means is ambient air pressure.

The present invention is directed to a plunger, a plunger assembly, and a system for storing a substance or substances, preferably flowable substances, and a method of filling and sealing a substance in a storing system. In particular, the present invention provides for substantially air-free filling and storing of substances in a delivery system.

An adhesive dispensing device includes a dispensing tube, a dispensing needle fixed to a bottom end portion of the dispensing tube and configured to dispense adhesive received in the dispensing tube, a heating sleeve surrounding the dispensing needle and configured to slide along a length of the dispensing needle and heat the dispensing needle, and a driving assembly. The driving assembly drives the heating sleeve to slide along a length of the dispensing needle to reveal an end portion of the dispensing needle or cover the end portion of the dispensing needle.

Described are metering dispensers (10) having a body (100) configured to hold a flowable composition in a chamber, a drive screw (300) coupled to the body, and a plunger (400) threadingly coupled to the drive screw. The plunger includes at least two annular lips (416) that form a fluid seal with the chamber as the plunger travels along the drive screw through the chamber. A base (200) is rotationally coupled to the body with a cam (208) that contacts at least one tab (114) extending externally from the body so that the tab enters at least one low point (222) on the cam by traveling over a trailing edge (226) of the low point, and the trailing edge then prevents the tab from exiting the low point in the direction of the trailing edge.

A container for storing and dispensing a liquid has a generally cup-shaped receptacle formed by a circumferential side wall and a front wall. A piston is slidably accommodated within the receptacle. The receptacle and the piston in combination form a chamber in which the liquid is received. The piston forms a sealing structure bearing on an inner surface of the side wall. The inner surface of the side wall has an arithmetic average surface roughness of between 0.05 m and 4.5 m R?a.#191 The container allows for air to penetrate in the chamber while it provides for the liquid to be captured therein.

A grease gun cylinder walled cartridge adapted for direct attachment to any of a variety of grease gun head constructions and grease pumping systems, wherein the cartridge wall can be of any color or completely clear and see through, wherein the grease column within the cartridge is pressured toward and through an inlet port in the gun head, which port opens on the section stroke of a piston mounted in said cylinder into a loading portion of a cylinder of the grease pumping system, and wherein the grease column pressuring means is ambient air pressure.

A dispensing apparatus for a flowable component includes a storage container having a storage chamber for the reception of the component, a filling opening and a dispensing opening. A piston is displaceably arranged within the storage container in the direction of an expulsion direction. Moreover, dispensing apparatus includes an actuation element by which the piston can be displaced stepwise in the direction of the dispensing opening. After release of the actuation element actuation element is displaced from a final position into a starting position by a spring.

The present invention is directed to a plunger, a plunger assembly, and a system for storing a substance or substances, preferably flowable substances, and a method of filling and sealing a substance in a storing system. In particular, the present invention provides for substantially air-free filling and storing of substances in a delivery system.

A material dispensing assembly (100) and method of operation for converting a portable cartridge dispensing tool to a bag-type dispensing tool is provided in which the assembly includes a single piece piston (110) for advancing material though a material housing (104). The single piece piston (110) includes a substantially square-shaped receptacle (140). The assembly further includes a square shaped drive rack (112) for attaching to the piston (110) at the substantially square-shaped receptacle (140) at a connection end (128). The drive rack (112) further includes a plurality of teeth (142) located thereon. The assembly (100) further has a support (127) with a substantially square profile for receiving and supporting the drive rack (112) during operation such that the construct of the drive rack and piston (110) are prevented from rotating during operation.