Abstract: A dispenser for paste compositions is formed of a housing having an inside wall formed about a longitudinal axis for containing said compositions and being open at one end. A piston is arranged to move axially within the housing to urge the compositions towards the open end. A locking mechanism supports the piston within the housing against the inside wall and prevents the piston from moving in a direction opposite to a dispensing direction. A head part is arranged at the open end of the housing for displacement of a portion of the composition to be dispensed. A push button is arranged laterally next to the head part for pressing against and deflecting at least a part of the head part The head part has a centrally arranged closing valve formed with a valve body, the valve being opened and closed upon the activation of the push button. A connecting rod passes axially through the housing and is held by a holder positioned in a guide cylinder of the valve body with very little axial free play.

Abstract: An electrically actuated material dispensing gun is disclosed having a body including a handle section and an elongate cartridge support section extending outwardly from the handle section. The cartridge support section includes a cartridge support space and an apertured end wall for receiving a cartridge dispensing nozzle and for dispensing force resisting engagement with a dispensing end of a cartridge positioned in the space. A reciprocatable push rod is carried by the handle section and axially aligned with the space for force transmitting engagement with a piston which in one embodiment is of unique construction. An electric motor is mounted in the handle section. A drive element is rotatively mounted in the handle section and in positive drive, mechanically interconnected, relationship with the rod. The drive element is normally freely rotatable in response to axial motion of the rod. A power train including a planetary is connected to the output shaft of the motor.

Abstract: An applicator has a ratchet mechanism for dispensing material from a single or multiple barrel container. The ratchet mechanism includes a clutch that substantially prevents movement of a plunger of the applicator whenever a resistance to plunger movement is greater than a certain value. As a consequence, bursting of the container, or damage to components of the applicator, is substantially avoided. A resilient, integral pawl hinders unintentional rearward movement of the plunger and provides for a compact construction especially suitable for use in dispensing dental material.

Abstract: A repetitive pipette wherein a rack shaft (23) vertically and movably provided in a pipette body (1) is connected to a plunger (43) of a syringe unit (41), and a vertically movable and pivotable pawl member (16) repetitively moves downward and meshes with the rack shaft (23) to feed the plunger (43) downward by a predetermined feed pitch at each time, thereby effecting repetitive pipetting, and wherein the predetermined feed pitch for the rack shaft (23) can be variably set by a pipetted quantity variably setting device. A vertically movable push button (2) is provided on the pipette body (1). A rotary control knob (3) for variably setting a pipetted quantity is provided in coaxial relation to the push button (2) so as to be vertically movable together with the push button (2) as one unit and rotatable relative to the push button (2). A pawl retaining member (12) for retaining the pawl member (16) is vertically movable together with the push button (2) as one unit.

Abstract: A dispenser adapter apparatus which allows activation and dispensing of multiple types of materials with use of a single dispensing device. The invention includes a cartridge holder with a socket for receiving a replaceable cartridge of adhesive, filler, or other material, and an activation chamber. The cartridge holder is reversibly coupled to a dispensing device such as a syringe or dispensing gun. The piston of the dispensing device applies an activating pressure to a cartridge within the activation chamber. The activated cartridge is transferred from the activation chamber to the socket. A plunger associated with the cartridge holder forces material from the cartridge. Force is transferred from the piston of the dispensing device to the plunger of the dispenser adapter apparatus by mechanically interfacing the piston and plunger.

Abstract: A dispenser for dispensing relatively low viscosity material includes a plunger that is movable to advance the plunger in the chamber. A full stroke of the lever dispenses no more than a single drop of material from the chamber. A cap is detachably connected to an outlet of the chamber and includes an arm in contact with the lever when the cap is connected to the outlet for releasably retaining the lever in a fixed position to prevent unintentional discharge of material from the chamber. A stop comprising one or more sets of teeth is connected to the lever for hindering advancement of the plunger after the lever is released. In certain embodiments, the dispenser includes two side-by-side chambers, and a mixing tray has a well with side recesses for receiving protruding outlets of the chambers.

Abstract: A dispenser is provided that includes a container for storing a dispensable chemical product such as an underarm composition, an elevator mounted for axial movement within the container, a rotatable shaft attached to the elevator, a compartment within the container below the elevator and mechanisms for axially advancing and for reciprocating the elevator within the container. Each mechanism is actuated through a depressible button protruding from the housing. A flexible plastic band serving as a biasing spring is unitarily molded with the button as a plastic insert. The advancement mechanism includes a ratchet wheel with a plurality of teeth circumferentially surrounding the wheel and a pawl, attached to the plastic insert, for moving the teeth of the ratchet wheel. The reciprocating mechanism includes an angled ramp attached to an underside of the button.

Abstract: An adjustable tool is disclosed for dispensing a two-part adhesive from a two-chamber cartridge having a mixing nozzle with each chamber having a plunger. Pistons are insertable into the respective chambers. Piston rods and a drive rod move conjointly with the pistons. A lever is pivotable on the frame. A feed nut is mounted loosely on the drive rod so as to be capable of gripping the drive rod when canted for moving the feed nut, the drive rod, the piston rods, and the pistons conjointly to a forward limiting position of the feed nut when the lever is actuated. A spring biases the feed nut backwardly and permits the feed nut to be canted, to grip the drive rod, and to be moved forwardly and conjointly with the drive rod, the piston rods, and the pistons when the lever is pivoted into an actuated position. A set screw threaded adjustably into a threaded hole in the frame defines a backward limiting position of the feed nut.

Abstract: A caulking gun and cartridge combination is provided with afterflow prevention. The cartridge has a tubular body, a forward dispensing opening at a forward end of the tubular body, and a backwall movably disposed within the tubular body. The caulking gun has a trough for receiving the cartridge, and a piston movable parallel to the trough. A trigger handle is used for pushing the backwall forward within the tubular body and causing a reduction of volume within the chamber in the cartridge. The backwall slides substantially in a contact-less manner within the tubular body, preferably by way of a reduced diameter of the backwall relative the inner diameter of the tubular body, so that it is pushed backwardly when the body retracts radially after actuation. Alternatively, the cartridge body may be prevented from expanding or may even be actively squeezed so that afterflow caused by the volume reduction of the relaxing tube body is safely prevented.

Abstract: An improved charging device (20) comprising a vessel (22) for holding a liquid (24) therein. A component (26) on the vessel (22) is for allowing the liquid (24) to exit therefrom. A facility (28) on the vessel (22) is for dispensing the liquid (24) in controlled amounts through the exit component (26).

Abstract: A dispenser adapter apparatus which allows dispensing of multiple types of materials with use of a single dispensing device. The invention includes a cartridge holder with a socket for receiving a replaceable cartridge of adhesive, filler, or other material. The cartridge holder is reversibly coupled to a dispensing device such as a syringe or dispensing gun. A plunger associated with the cartridge holder forces material from the cartridge. Force is transferred from the piston of the dispensing device to the plunger of the dispenser adapter apparatus by mechanically interfacing the piston and plunger.

Abstract: The present invention relates to an improvement of a discharge container with a nozzle for housing a liquid, for example, an instantaneous adhesive or another moisture curing type adhesive, various adhesives such as solvent volatilizing type adhesive, various chemicals, foods, inks and medical supplies. The present invention is a discharge container with a nozzle which includes a container body for housing contents, a nozzle threadly attached to the container body, and a dual-shoulder type protective frame having a neck hole, wherein the base end of the mouth of the container body is inserted through the neck hole of the dual-shoulder type protective frame, and the container body is threadly attached to the nozzle, thereby allowing them to be made a one-piece structure.

Abstract: Simple and economical drive mechanism controls for incorporation in a manually operated caulking gun. The controls include various restraint springs and reeds to afford the caulk gun user the option of releasing pressure (to avoid drips) or not upon full release of the trigger, and a resistance clip to provide some restraint against the plunger shaft inadvertently sliding backward when the trigger is fully released and pressure is removed in the dripless drive context.

Abstract: An dispensing system is provided with a stepping plunger to minimize the air buffer at develops as material is dispensed. The stepping plunger includes a plunger body having an air passage therethrough for insertion into a syringe containing a material to be dispensed, A plunger rod having an air passage therethrough is attached at one end to the plunger body, and at the other end to an air hose. The plunger rod has a plurality of equally-spaced detents distributed along at least a portion of its the length, and a detent pin is urged into contact with at least one of said detents under spring bias. The detents are ramped to permit the plunger rod and said plunger body to move axially in one direction while being prevented from moving the opposite direction. The plunger body follows the level of material in said syringe as it is dispensed while maintaining a substantially zero air buffer in said syringe.

Abstract: A paste injector gun, especially adapted for injecting bone cement, has first and second mechanical advantages corresponding to different portions of the trigger stroke. The first mechanical advantage is greater than the second such that the first facilitates pressurizing the bone cement and the second facilitates high volume dispensing of the bone cement. The injector gun also includes a pair of U-shaped slots. One of the slots is sized to accept a large cement cartridge and the other slot is sized to accept a small cement cartridge.

Abstract: A C-clamp assembly has a fixed handle, a circular holding seat disposed in a front of the fixed handle, a driving handle inserted in an interior of the fixed handle, a push rod passing through the circular holding seat and the fixed handle transversely, a movable jaw disposed in a front end of the push rod, a generally C-shaped frame extending from the circular holding seat transversely, an elastic clamp device positioned on the generally C-shaped frame, and a fixed jaw disposed on a front end of the generally C-shaped frame.

Abstract: A caulking gun having a fixed first bearing surface, and an engagement member for preventing rearward movement of a plunger shaft while permitting forward movement thereof. Following termination of forward movement of the plunger shaft in response to operation of a handle mechanism of the gun, the plunger shaft selectively can be moved rearwardly a predetermined distance in response to cartridge back pressure. In an alternative mode of operation, the rearward movement is substantially prevented for effecting precise control and smoothly continuous feeding of media from the gun. In one configuration, a shifting link permits movement of the plunger shaft together with the engagement member up to a distance E when a control surface is positioned for providing forward movement of the engagement member in response to forward movement of the plunger shaft.

Abstract: The mechanism consists of a crankshaft and connecting rods driving two rods which extend through the full length of the cylinder of the taper. The rods reciprocate 180.degree. out of phase with each other and pass through a piston assembly. Clutch mechanisms in the piston assembly engage when the rods are moving toward the head assembly and do not engage for the opposite motion. As a result the piston assembly advances toward the head assembly an increment of motion each time one of the rods moves in that direction. A mechanism in the piston assembly engages the head end of the cylinder as the piston assembly approaches the head end and prevents the clutches from engaging so that the piston assembly does not jam against the head end of the cylinder. Also, mechanism is provided to disengage both clutches and keep them disengaged so that the piston assembly is free to move as the cylinder is being filled. This mechanism involves rotating the rods to drive cams which engage the clutches to hold them disengaged.

Abstract: The present invention relates to a syringe for delivering only a single dose of a medicament at each actuation of the syringe. The device includes a cylinder which is adapted to contain the medicament, the cylinder having a piston which is journalled in the bore of the cylinder for axial movement in the bore towards an outlet. The piston can be moved axially within the bore of the cylinder by means of a plunger member which carries one or more drive teeth which are adapted to engage teeth carried by an axially moveable drive member. The axial spacing between the axially adjacent teeth on either the plunger member or the drive member corresponds to the forward axial movement of the plunger member which is required to discharge a single dose of medicament. The drive member can also be retracted axially only a predetermined distance which corresponds to one of the tooth spacings with respect to the plunger.

Abstract: A caulk gun having a piston with a flexible rim providing dripless dispensing of caulk or adhesive and including a tube-engaging receptacle for securely holding a tube is disclosed. The advantages of a dripless caulk gun are provided by a piston having a flexible circumferential rim that engages an inside surface of a caulk or adhesive dispensing tube to create an atmospheric seal. The plunger moves the piston against an inside movable surface of the dispensing tube. When the trigger is released, the plunger mechanism moves backward, and the piston creates a partial vacuum within the caulk tube thereby halting dispensing. The dispensing tube is attached to the caulk gun by secure engagement with a tube-engaging receptacle. The receptacle may be provided with threads that threadingly engage with a portion of the dispensing tube.

Abstract: The invention relates to a repetition pipette including a syringe receiving section for a mounting portion of a syringe, said pipette comprising a receiving member having a piston receiving portion for the mounting portion of a syringe piston, piston returning means for moving said receiving member away from said syringe receiving portion, piston advancing means for advancing said receiving member towards said piston receiving portion in steps corresponding to the liquid volumes to be ejected by the syringe, and step width adjusting means for adjusting the width of the steps of said receiving member by means of an adjustment element, characterized by constant step means for setting the width of the first step to a constant value independent of adjustments of said adjustment element for the widths of following steps.

Abstract: A repetition pipette including a syringe receiving section for the mounting portion of a syringe, a receiving member having a piston receiving portion for the mounting portion of a syringe piston, piston returning means for moving said receiving member away from said syringe receiving portion, piston advancing means for advancing said receiving member towards said piston receiving portion, which piston advancing means comprises a rack connected to said receiving member, and actuating element movable along an actuation path, and a pawl pivotally mounted thereto, which pawl is moved into engagement with the toothing of the rack so as to drive the latter for an advancing step when the actuating element is advanced, and is moved out of engagement with the rack when the actuating element is returned, and step width adjusting means for adjusting the step width of the advancing step, the step width adjusting means comprising a withholding element displaceable along the rack by means of an adjusting element for preve

Abstract: The present invention involves a dispenser. The dispenser includes a main hollow housing with side walls, a base and an open top which contains a manifold component for dispensing material therethrough. At least one vertical support column is included within the hollow housing and it has horizontal ratchets thereon as well as a push plate located at its top. A trigger component is also contained within the housing and it is formed of plastic material with at least one flexible portion therein. It acts as a trigger, a ratcheting member and a spring, and is strategically positioned in a hinged manner such that a side wall cut-out or other member holding the trigger component against one of the vertical support column ratchets may be rotated inwardly and released outwardly to cause the ratcheting mechanism to advance the support column.

Abstract: A dripless caulk gun is disclosed having a biased-spring drive mechanism and a plunger that presses against an inside surface of a caulk tube for dispensing caulk. At the end of the plunger is a piston having a flexible rim which creates a seal between the piston and an inside surface of the caulk tube, thus creating a partial vacuum in a volume between the piston and the inside end face of the caulk tube when the plunger is moved backward. The partial vacuum causes a drive plate within the caulk tube to move back into the partial vacuum, thereby relieving all built-up pressure within the caulk-filled portion of the caulk tube which immediately ends dispensing of caulk.

Abstract: An angle-adjustable C-clamp has a handle with an upper interior to receive a rod. The upper front edge of the handle has a couple of step-shaped front edges with two positioning posts extending forward from each front edge. The positioning posts are inserted in a rotary seat and a disk plate. The rotary seat has a central opening to receive the positioning posts. An upper and lower seat lugs are protruded upward and downward from the rotary seat, respectively. The disk plate which has a central square hole and four rectangular holes corresponding to the four positioning posts is disposed in the rotary seat. The C-shaped frame has a lobe at one end and a fixed jaw at the other end. The lobe connects the lower seat lug. The rod has a ball at front end. The rod passes through the central opening and the square hole. The ball is inserted in the socket of the movable jaw.

Abstract: A simple and economical drive mechanism for caulk dispensing devices that gives a dripstop release feature to improve control over the bead of caulk. The drive mechanism is shown in the context of an open frame housing (which may be a single piece of molded plastic) having a downwardly extending handle. A plunger shaft is slidably supported in the housing for dispensing caulking composition, and a trigger is pivoted to the housing and retractable against the handle. The trigger includes an upper portion extending above the plunger shaft. A first gripping member encircles the plunger shaft forwardly of the trigger and protrudes downward for engagement with the trigger when the trigger is retracted. A first compression spring rearwardly biases the first gripping member, the first compression spring being formed with a forward constricted end having increasingly tighter helical coils to frictionally grip the plunger shaft.

Abstract: A bone cement delivery gun for use in attachment of prosthetics and method of using the delivery gun. The gun comprises a reservoir and a trigger mechanism. The reservoir comprises a plunger at a first end of the reservoir and a screw mount fitting at a second end of the reservoir. The trigger mechanism comprises a first position wherein gas, from a compressed gas source, is prevented from reaching the plunger and a second position wherein compressed gas is conveyed from the compressed gas source to the plunger to thereby move the plunger in a direction toward the screw mount fitting.

Abstract: A manually operated tool of the type in which a grip is pivotally mounted in a housing displacing a push rod mounted in the housing in an axial direction and in a stepwise manner. The push rod extends through at least a pair of canting blocks arranged between bearings supporting the push rod. A spring resting on the housing acts on the portions of the canting block through which the push rod extends. The force applied by the spring on the canting blocks is directed against the direction of displacement of the push rod. An adjusting force periodically exerted by the grip acts on the outer portions of the canting blocks remote from the push rod. At least one braking block is provided for holding the push rod.

Abstract: A device for extruding high viscosity fluids is described which has multiple modes of operation and provides a mechanism for relieving pressure being applied to fluid being extruded. The pressure release mechanism includes a first and second dog and a release arm that engages the second dog to result in the second dog disengaging the teeth of a drive rod attached to a piston for applying pressure to the fluid material to be extruded resulting in relief of the applied pressure by the drive rod and piston combination to stop the flow of the fluid from the nozzle of the device. The preferred device is a caulking gun.

Abstract: The movable actuating lever is connected to a transmission lever, at one hand, and is guided by means of a pin within a guideway in the housing of the apparatus, on the other hand. The transmission lever serves at the same time for transmitting the actuating motion via further levers to the apparatus part to be actuated. Due to the position and the shape of the guiding groove and the lever, the course of motion of the actuating lever with respect to the fixed handle portion may be optimally adapted to technical and ergonomic requirements in order to achieve an effective force transmission having minimal frictional losses. Furthermore, no levers are in the way, and injuries are avoided.

Abstract: A dripless caulk gun is disclosed having a biased-spring drive mechanism and a plunger that presses against an inside surface of a caulk tube for dispensing caulk. At the end of the plunger is a piston having a flexible rim which creates a seal between the piston and an inside surface of the caulk tube, thus creating a partial vacuum in a volume between the piston and the inside end face of the caulk tube when the plunger is moved backward. The partial vacuum causes a drive plate within the caulk tube to move back into the partial vacuum, thereby relieving all built-up pressure within the caulk-filled portion of the caulk tube which immediately ends dispensing of caulk.

Abstract: A manually actuated dispensing device for use with double dispensing cartridges for delivering two-component compositions comprises a double thrust ram for each cartridge and a drive member jointly acting on the thrust ram and being actuated by a trigger lever, the drive member comprising a thrust member which acts upon a toothing on the thrust ram. The thrust member comprises a driving dog provided with several teeth and being under the action of a spring, the driving dog acting substantially perpendicularly on the toothing of the thrust ram, and the thrust member acting essentially in the direction of the thrust ram or, respectively, the dispensing direction only. Such a dispensing device can be manufactured from a small number of low-priced parts of synthetic material and allows by the use of several teeth a substantial lowering of the contact-pressure, and a fast re-gripping of the trigger lever having a very small backlash.

Abstract: A sealant gun is disclosed having a pair of spaced longitudinally extending support arms connecting a stock portion to an apertured distal end portion, the distal end portion having a generally rectangular outer surface profile. The sealant gun is provided with a handle and an actuation mechanism for driving a piston incrementally in the longitudinal direction of the arms. A locking mechanism is also provided to selectively prevent or permit the piston to be retracted in the longitudinal direction. The generally rectangular outer surface profile of the distal end of the sealant gun enables groups of such sealant guns to be conveniently stacked or hung on a display rack.

Abstract: A liquid dispensing device which includes a housing and a spring actuated lever arm hingedly connected to the housing and having a latch operatively connected to a toothed bar wherein upon depression of the lever arm the toothed bar is axially displaced toward the front end of the housing and during return of the lever arm to its original position, the toothed bar is released, wherein the lever arm, the spring and the latch are integral, and the spring and latch are the same element.

Abstract: A disposable toothbrush apparatus is provided having a head, a bristle cluster extending from the head and a hollow handle for defining a toothpaste storage chamber connected to the head. A manually actuatable pump assembly mounted for axial displacement at the distal end of the handle storage chamber is adapted to cause a predetermined amount of toothpaste in the chamber to be fed via a conduit to a nozzle opening in a surface of the head at the base of the bristle cluster. In an alternative embodiment, a refillable cartridge containing a fresh supply of toothpaste and the self-contained pump assembly is adapted to be fitted to the hollow handle.

Abstract: A butter dispenser having a housing and a piston slidable within the housing. The housing has four flat walls each with an inwardly and downwardly extending tongue formed at a lower end to hold the butter in the applicator. The piston has a lower face engageable with an upper end of the stick of butter to move the butter through the housing.

Abstract: A water gun has a housing and a cylinder mounted on the housing, with the cylinder being formed with an opening and defining a chamber. A piston is slidably disposed in the chamber and is spring biased to a fired position, wherein the piston is adjacent the opening. A reservoir is also mounted on the housing. A cocking member is movably mounted on the housing, and the cocking member can be manipulated to move the piston to a load position, wherein the piston is distanced from the opening of the cylinder and water from the reservoir can enter the chamber. Also, a firing mechanism is provided for releasing the piston to permit it to rapidly return to the fired position and thereby emit water from the chamber through the opening in a burst pattern, and to give an audible and tactile indication of water emission.

Abstract: An electrostatic spray gun includes a housing for receiving a replaceable fluid container, a nozzle from which fluid is to be sprayed, a device for expelling fluid from the container, and a high voltage generator for applying electrostatic potential to the fluid to form an electrically charged atomized spray at the nozzle. An electrical path from the generator to the nozzle passes through the fluid, entering the fluid prior to its emergence from the nozzle. The container is rigid and fluid is expelled from the container by a piston under pressure exerted thereon through a forward part of the generator.

Abstract: A device for dispensing a predetermined amount of fluid material from chambers within a cartridge. This device includes a housing, a trigger pivotably connected to the housing and a plunger having teeth on a top side thereof entering the housing and passing through an upper part of the trigger. A ratchet is attached to the upper part of the trigger and engaged between the plunger teeth. When force is applied to the trigger, the ratchet is pushed forward, causing the plunger to also move forward, dispensing the contents of each of the chambers within the cartridge. When the trigger is released, the ratchet moves backward causing the plunger to move with the ratchet. The plunger moves backward a short distance until the force applied by the ratchet is overcome through frictional engagement between the plunger and a frictional brake mounted on the housing, at that point the ratchet slides over the next tooth behind it on top of the plunger.

Abstract: A method for the advance of two or more rods against a resistance, as it is typically required in dispensing appliances for multiple component dispensing cartridges, consists in that thrust rods are seized by clamping levers in a traveller and then are advanced along with the traveller. The thrust rods extend through guides in traveller on both sides of the respective clamping lever as well as through a bore in the clamping lever. By a transmission of the advancing motion to the clamping levers, which is offset with respect to the bore, the latter are pivoted perpendicularly to the bore, whereby the thrust rods are clamped in the bores and are driven along. The clamping levers are arranged in such a manner that the torsional moments of the clamping action are essentially equal and opposed, whereby no torsional moment acts upon the traveller as a whole.

Abstract: Dispensing device for high viscosity compositions includes an elongate drive rod movable in a linear direction for dispensing a high viscosity composition; a driving grip for receiving the drive rod therethrough and for engaging and driving the drive rod in the linear direction; a trigger pivotally secured to an axle and including a hand gripping section for actuating the trigger and a first link section; a second link pivotally secured to the first link section of the trigger through a toggle axle spaced from the axle of the trigger, whereby the second link and the first link section are movable from a first, retracted condition prior to manual actuation of the trigger to a second, extended condition upon manual actuation of the trigger to impart a high thrust to the second link. The second link is operably connected to a force transmitting member engaging the driving grip whereby the high thrust is imparted to the force transmitting member and the driving grip.

Abstract: A material dispensing tool has restraining and rear walls spaced apart to receive a material cartridge therebetween, and has an elongated rod supporting a plunger for movement between the walls and within the cartridge. A power ratchet mounted rearwardly of the rear wall over the elongated rod incrementally moves the elongated rod. Linkage including a spring concentrically arranged on the elongated rod effectively couples the power ratchet relative to the restraining wall, whereby the elongated rod can be resiliently biased by the strained spring. Output movement of the elongated rod relative to the power ratchet can thus be substantially independently of the plunger movement relative to the cartridge, the strained spring generating nearly uniform resilient plunger forces to discharge material from the cartridge.

Abstract: A caulking gun incorporating an inexpensive and convenient adjustment feature which allows the user of a caulk dispensing gun to vary the thrust output while using the gun, The adjustment feature is accomplished by means of a selection dial pivotally mounted for orthogonal rotation about an upward tip of the trigger. The selection dial can be rotated into various positions for varying the thrust output of the caulking gun.

Abstract: A dispenser serves to inject an edible viscous material such as mayonnaise, cream or the like at a constant rate after it is once contained in a cartridge (26). The dispenser includes a storing portion (2) in which a cylindrical inner case (30) having a bottom is stored. The cylindrical inner case (30) is dimensioned to have a length long enough so as to allow a shoulder portion of the cartridge (26) to be exposed to the outside via an opening portion at one end thereof. An insert hole (31) is formed on the bottom of the cylindrical inner case (20) at the other end of the latter so as to enable a rod (22) to be inserted therethrough. The cartridge (26) and an extrusion plate (21) are received in the cylindrical inner case (30) so that the extrusion plate (21) can smoothly be displaced in the storing portion (2).

Abstract: A sealant gun 1 comprises:two resilient longitudinally extending support arms 2, 3 connecting a stock 4 and an apertured end portion 5 having a rectangular cross section;a handle 13 projecting from stock 4;a trigger 11 mounted in the stock 4 and arranged to incrementally drive a push plate 9 attached to a push rod 10 (which together form a piston) in the longitudinal direction passing through stock 4; andcatch plate 15 and spring 16 arranged to selectively prevent or enable the piston to be retracted in the longitudinal direction.

Abstract: The present invention involves a dispenser. The dispenser includes a main hollow housing with side walls, a base and an open top which contains a manifold component for dispensing material therethrough. At least one vertical support column is included within the hollow housing and it has horizontal ratchets thereon as well as a push plate located at its top. A trigger component is also contained within the housing and it is formed of plastic material with at least one flexible portion therein. It acts as a trigger, a ratcheting member and a spring, and is strategically positioned in a hinged manner such that a side wall cut-out or other member holding the trigger component against the vertical support column ratchets may be rotated inwardly and released outwardly to cause the ratcheting mechanism to advance the support column.

Abstract: A tool for dispensing a single component or a multi-component mass by pressing the mass out of a foil bag (3) includes a piston rod (7) and a piston rod advancing mechanism (6). The advancing mechanism (6) has two pivotally movable clamping levers (12, 13) mounted on the piston rod (7). A triggering lever (11), pivotally displaceable between a pair of spaced end stops (5b, 5c), forms a stop in contact with one of the clamping levers. An unlocking lever (17) acts substantially simultaneously on both of the clamping levers (12, 13).

Abstract: A dual chambered pump for viscous products having a plastic body having a top wall and a side wall. The top wall has spaced discharge openings. The body has spaced parallel cylinders. A piston is associated with each cylinder and a piston rod is associated with each piston. A one way spring is provided between each rod and its respective piston. Each rod extends through the top wall of the body. A plastic lever has a top portion and a side portion which includes integral means interengaging integral portions on the top wall for pivotally mounting the top portion of the lever on the top wall of the body such that the side portion of the lever extends along the side wall of the body. The top portion of the lever has integral portions engaging the integral portions on the rod. A spring on the side portion of the lever is engageable with the side wall of the body for urging the lever away from the body.

Abstract: The present invention is a dispenser for liquids or solids. It includes a main hollow housing with sidewalls, an open base and an open top. The base is open to receive an activator component and the top is at least partially open for dispensing material therethrough. There are also at least two sets of vertically aligned, horizontal housing ratchets located on the inside of the housing sidewalls. They are tapered downwardly so as to permit upward movement and restrict downward movement of a push plate located within the housing. There is also an activator component inserted into the bottom of the housing, which is reciprocally movable. It has at least two sets of vertically aligned horizontal ratchets extending upwardly and aligned against the inside of the housing sidewalls. The activator component has a flexible spring portion biasing the activator component downwardly.

Abstract: A dispensing device includes a frame designed to receive and support a cartridge containing a viscous product. The dispensing device has a plunger with a plunger shaft and plate for dispensing the viscous product from the cartridge, and a drive assembly with a handle and a trigger for advancing the plunger. The frame of the dispensing device has a front yoke to receive and align the nozzle at one end of the cartridge, and sidewalls defining an aperture designed to receive the cartridge and support the body of the cartridge. A cartridge biasing assembly integral with the frame biases the cartridge toward the front yoke of the frame. The cartridge biasing assembly includes a biasing plate and a spring at least partially surrounded by a shroud. The cartridge is received within an entrance opening in the shroud and is spring-biased forwardly in the dispensing device by the biasing plate to prevent the cartridge from becoming misaligned.