The present invention is a material dispensing system for controllably dispensing material from a packaging such as a chub pack. The system can include a housing capable of receiving the packaging, a cover pivotably connected to the housing, at least one nozzle tip, and at least one piercing projection capable of piercing the packaging. A packaging compression assembly can be used to compress the packaging toward the piercing projection so that the piercing projection pierces the packaging and allows the material in the packaging to be dispensed from the nozzle tip. A locking slide can be included to secure the cover in a closed position.

A caulking gun includes a gun body, a swinging member, a push rod, driving member and an abutting member. The gun body includes a side wall. The side wall has a penetrated portion. The penetrated portion defines an axial direction. The swinging member is swingably disposed on the gun body. The push rod is axially movably, disposed through the penetrated portion and the swinging member. The driving member is movably disposed in the gun body, and the driving member and the swinging member are located at two sides of the side wall respectively. The push rod is frictionally drivable by the driving member. The abutting member is axially movably disposed through the penetrated portion. The abutting member is disposed circumferentially around the push rod less than 360 degrees. Two ends of the abutting member are axially abuttable against the driving member and the swinging member respectively.

A caulking gun includes a gun body, a swinging member, a push rod, driving member and an abutting member. The gun body includes a side wall. The side wall has a penetrated portion. The penetrated portion defines an axial direction. The swinging member is swingably disposed on the gun body. The push rod is axially movably, disposed through the penetrated portion and the swinging member. The driving member is movably disposed in the gun body, and the driving member and the swinging member are located at two sides of the side wall respectively. The push rod is frictionally drivable by the driving member. The abutting member is axially movably disposed through the penetrated portion. The abutting member is disposed circumferentially around the push rod less than 360 degrees. Two ends of the abutting member are axially abuttable against the driving member and the swinging member respectively.

An apparatus for capping the tip of the nozzle of a caulking tube retained in a caulking gun to prevent the caulking tube from leaking caulking material such as latex or silicone during non-use. The apparatus has a cap portion, a housing portion, and a retractable flexible cord to provide a retractable cap to be used with the caulking tube placed in a caulking gun to prevent leakage when the caulking gun and caulking tube are not in use. The housing contains a retraction member which is placed under force when the cap is pulled away from the retraction member and placed over the tip of the caulking tube nozzle. When the cap is removed from the caulking tube nozzle, the tension from the retraction member causes the flexible cord to pull the cap to a location adjacent the housing so that the cap can be easily retrieved and not lost.

A common head for use in combination with a cartridge assembly, the cartridge assembly being retained within the material containment unit of a dispensing device and arranged to discharge reactive components from larger and smaller cartridges in response to actuation of the dispensing device. The common head includes inlet openings and a rigid walled tube having a partition positioned therein to define larger and smaller pathways to enable passage of the reactive components from the cartridges into and though the common head in a predetermined volumetric ratio and prevent backflow of the components which can lead to unintended curing prior to dispensing. A flexible liner arranged for positioning within one or both pathways of the rigid walled tube is also provided to prevent such backflow and unintended curing prior to dispensing.

A station for covering a bread roll half of a bread roll with a sauce in a preparation line of a fast food restaurant, comprising: a table by which a user standing at a front side can cover a bread roll half with sauce, a container comprising the sauce and arranged over the table at a working distance from the front side and from which an outlet nozzle oriented towards the table protrudes at a vertical distance from the table, so that the bread roll half which is to be covered with sauce can be placed on the table below the outlet nozzle, and a pressure actuator that can be actuated by the user and which is designed to dispense the sauce from the container onto the bread roll half when actuated by the user.

A caulking gun includes a push disk, a push rod, an adhesive cartridge compartment, a trigger and a gun body; the trigger is hingedly coupled to the middle part of the gun body; the rear end of the push rod is outside the gun body and provided with a braking device; the front end is in the adhesive cartridge compartment through the gun body and provided with a push disk; a push piece for driving the push rod is mounted in the gun body; the front end of the push piece is provided with a return spring; the trigger is provided with a pin position switching device for adjusting the propulsion ratio by adjusting the contact position of the push piece; adjustment of different propulsion ratios enables the caulking gun to be multifunctional to meet the construction requirements of different adhesives.

A higher viscosity fluid dispensing apparatus is provided having a reservoir chamber and a pump head positioned adjacent to an end of the reservoir chamber. The pump head includes a pump body having a pump cavity formed therein, a first one-way valve between the reservoir chamber and the pump cavity, a piston slidably engaged with the pump cavity and having a pump outlet in fluid communication with the pump cavity, and a second one-way valve between the pump outlet and the first one-way valve. The first one-way valve and second one-way valve cooperate to draw a higher viscosity fluid from the reservoir chamber into the pump cavity and expel the fluid out of the pump cavity through the pump outlet.

A dispenser assembly includes a rod, a plunger and a stopper. The rod has a plunger receiving end with a clip receiving recess. The plunger has a rod receiving structure with a rod engaging clip biased to fit to the clip receiving recess of the rod for movement therewith. The stopper has a plunger receiving space that defines an aperture extending through the plunger receiving space with the rod extending through the aperture. The plunger receiving space is dimensioned such that with the rod receiving structure of the plunger located within the plunger receiving space, movement of the rod engaging clip is restricted by contact with surfaces of the plunger receiving space preventing release of the rod from the plunger.

A station for covering a bread roll half of a bread roll with a sauce in a preparation line of a fast food restaurant, comprising: a table by which a user standing at a front side can cover a bread roll half with sauce, a container comprising the sauce and arranged over the table at a working distance from the front side and from which an outlet nozzle oriented towards the table protrudes at a vertical distance from the table, so that the bread roll half which is to be covered with sauce can be placed on the table below the outlet nozzle, and a pressure actuator that can be actuated by the user and which is designed to dispense the sauce from the container onto the bread roll half when actuated by the user.