Abstract: A device for the roller application of liquid coating compositions such as paint is provided comprising;(a) a hollow body portion having an applicator opening at one end and a container opening at the opposite end; said portion containing;(1) a liquid feed tube extending from said applicator opening through said container opening;(2) a solid support member engaging the outside surface of said tube;(3) a rod reciprocatingly mounted in said solid support member and extending through the wall to the inside of said tube;(4) a flexible disc centrally mounted on said rod within said tube having a diameter substantially the same as the inside diameter of said tube;(b) a hollow handle portion contiguous with said body portion having pivotably mounted therein a trigger, said trigger connected by linking means with said rod for reciprocating said rod within said tube;(c) a container for said liquid coating composition mounted in said body portion at said container opening; said tube extending into said container; and(d

Abstract: This invention is a manually operated liquid dispenser designed in particular to dispense heavy soaps like hair washing shampoo. The dispensers which are presently available on the market are unsuitable for these reasons, (a) too expensive to manufacture, (b) have too many parts, (c) plug up the dispensing hole in a very short time. This dispenser has a very positive dispensing action and it positively vacuums out the dispensing hole during the return stroke. All parts can be molded from plastic or other moldable material and used without machining. The number of parts used to make this dispenser is far less than what is presently used in such dispensers. This dispenser is particularly suitable for domestic use. It has no flexible membrane or any spring loaded valves.

Abstract: A fluid pump dispenser includes a dispenser trigger which may be located in pivotable engagement with the dispenser housing and pump piston after shipment. The initial actuation of the trigger moves the pump piston and a container conduit, engaged thereto, to open a container vent shipping seal provided by mating surfaces on the conduit and the container cap. Fluid carried from the container by the conduit enters the pump chamber through a central orifice in the piston. A flexible member located on the piston functions as an inlet check valve for the conduit and as a piston ring. The fluid dispenser also includes a nozzle structure having a flexible member which functions as an outlet check valve and O-ring seal, and which cooperates with a threaded nozzle cap to vary the discharge pattern of the dispenser responsive to twisting adjustment of the cap.

Abstract: A leakproof pump construction for hand-held dispensers, comprising a pump cylinder, an annular piston having a hollow bore which is slightly conical, said piston being reciprocatible in the cylinder between high and low positions therein, and a hollow ducted plunger carrying the piston and extending through the bore thereof. The plunger has a side orifice and discharge passage or duct through which liquid product can flow to be dispensed from a spray head. The piston is movable between high and low positions on the plunger to control the discharge through the latter. For the non-dispensing condition, the piston seals against an internal shoulder in the cylinder while a valve head at the lower portion of the plunger seals against and effects a slight deformation of a cooperable valve seat on the lower body portion of the piston, so as to provide an improved seal between the latter two parts.

Abstract: A finger-operated spray pump assembly including a tank, a primary piston slidably fitted inside the tank, a secondary piston slidably fitted inside the primary piston, and a spring fitted inside the primary piston and on the outside of the secondary piston for biasing the primary piston away from the secondary piston.

Abstract: A pumping system is disclosed in which a storage compartment formed by a spring-loaded piston and cylinder assembly cooperates with a trigger actuated, spring loaded piston and cylinder assembly to store some product during a pressure stroke and discharge that product on a subsequent intake stroke to maintain a stream or spray issuing from the system. In a preferred embodiment, the trigger is part of a lever so constructed as to apply to the trigger actuated piston and cylinder assembly a force which is greater than the force applied to the trigger by the finger of a person. The lever projects outwardly beyond the outlet orifice of the pumping system and forms a ramp and opening for returning drips from the outlet orifice to the trigger actuated piston and cylinder assembly and ultimately to the container. The storage compartment preferably includes a strainer which strains product flowing through the storage compartment in order to inhibit clogging of the outlet orifice of the pumping system.

Abstract: A liquid sprayer having a cylinder with a pressure chamber and a suction chamber, a hollow piston with a liquid passage therethrough and slidably fitted in said cylinder, an actuator mounted on the piston, a suction tube suspended from the bottom of the suction chamber into a liquid container, a movable valve rod vertically movable provided in the piston and cylinder and having a valve portion at the top end thereof for opening and closing the liquid passage of the piston, a compression spring for at all times urging the movable valve rod towards the direction of lifting up the piston with the liquid passage thereof being closed, and an elastic valve closely and slidably fitted onto the valve rod and adapted to establish communication between the pressure chamber and the suction chamber at its uppermost position and cut off communication therebetween at its lowermost position; whereby the passage of the piston communicating with a spray nozzle is opened when the internal pressure of the pressure chamber excee

Abstract: A manual spray pump comprises a cylinder consisting of different diameter portions integral with one another and extending from one another and large and small pistons having respective collars of different diameters and fitted in respective cylinder portions in elastic contact with the inner wall thereof for reciprocal movement in the axial direction. The small piston is coupled to the large piston such as to receive liquid pressure therefrom, and a valve body provided at the top of the small piston co-operates with a valve seat of the large piston to constitute an opening valve. Further, in order to control or suppress too sensitive action of the small piston under low liquid pressure when actuating the opening valve with the liquid pressure exerted from the large piston to the small piston, the small piston is provided with an integral additional piston member of a still smaller diameter or is adapted to produce a frictional force in part of its portion coupled to the large piston.

Abstract: A manually actuated spray dispenser is presented having the usual reservoir for a liquid to be dispensed, with a manually operated pump at the upper end of the container for moving the liquid in the reservoir out through a dispenser opening at the top of the container and including a comfort hold extending from the upper end of the liquid reservoir to the top of the manual pump equipment, completely enclosing the spray complex. The comfort hold is provided at its upper end with a circular button having a downward projection engaging the usual actuator for the spray pump. The comfort hold is of a diameter to be comfortably held in the hand of a user of the spray equipment so that the user may grasp the container by gripping the hold and he will then have his fingers in position to actuate the button up and down to dispense the liquid contents of the reservoir.

Abstract: An oil injector for introducing a measured quantity of lubricating oil into a predetermined quantity of gasoline for use with a two-cycle engine. The oil injector includes a tank for a supply of lubricating oil and a reciprocating pump disposed internally of the oil tank and provided with a handle located externally of the oil tank for manual manipulation with the pump being provided with a calibrated chamber to inject a predetermined quantity of lubricating oil into the gasoline supply for a two-cycle engine for each reciprocal movement of the pump piston.

Abstract: A finger-operated spray pump assembly including a compression chamber, a primary piston and a secondary piston slidably fitted inside the compression chamber, a spring fitted inside the secondary piston for urging the secondary piston toward the primary piston, and a valve slidably connected to the secondary piston.

Abstract: The vertical hollow sleeve of a pump has a bottom open end receiving the top open end of a container with fluid. A top section of the sleeve has a first vertical bore with a bottom surface communicating with the bottom thereof and contoured to receive a convex diaphram. A hollow vertical extension slidably disposed in the first bore has a second vertical bore with a top disposed first orifice. The tip of a vertical member slidably disposed in the first bore fits movably into the first orifice. A mechanism engaging the extension and bottom surface has a horizontal chamber which in vertical cross section has the shape of a horizontally elongated axis. The diaphram forms the top surface of the chamber. The bottom surface of the chamber is formed by the rigid top end of a vertical cylinder which has a third vertical bore receiving the member. The member has a fourth vertical bore which communicates with an enlarged hollow region in the chamber.

Abstract: A leakproof pump construction for hand-held dispensers, comprising a pump cylinder, an annular piston having a hollow bore which is slightly conical, said piston being reciprocatible in the cylinder between high and low positions therein, and a hollow ducted plunger carrying the piston and extending through the bore thereof. The plunger has a side orifice and discharge passage or duct through which liquid product can flow to be dispensed from a spray head. The piston is movable between high and low positions on the plunger to control the discharge through the latter. For the non-dispensing condition, the piston seals against an internal shoulder in the cylinder while a valve head at the lower portion of the plunger seals against a cooperable valve seat on the lower body portion of the piston. The sealing surface of the valve head and the valve seat are both of conical configuration such that the valve head normally applies radially inward pressure on the walls of the piston.

Abstract: An atomizer assembly comprises a nozzle mounted in a push-button mounted on a tubular extension to a first piston of the assembly. The first piston is slidable in a first cylinder or pump chamber and defines a seat of a valve. A valve member co-operating with the seat forms part of a second piston slidable in a second cylinder defined by the first piston. Depression of the push-button causes pressure in the pump chamber to increase and at a certain point the valve member is lifted from the seat so that liquid under pressure passes to the nozzle.

Abstract: A non-pulsating, non-throttling, vented pumping system is disclosed for continuously dispensing product from a container in a relatively non-pulsating stream or spray. The pumping system includes a pump for withdrawing product from a container and for pressurizing the product, a storage compartment for storing the product under pressure, an accumulator piston in the storage compartment acting under bias to maintain the pressure on the product, an outlet passage opened and closed by the accumulator piston, and a restricted orifice at the outlet passage through which the product is dispensed as a stream or spray. The restricted orifice allows only a portion of the product pressurized by the pump to escape during the pressure stroke of the pump, and the remainder of the product is stored in the product storage compartment to be released for maintaining the spray or stream when the pressurizing pump is acting on its intake stroke.

Abstract: A molten metal metering and transfer device for use with a molding machine and a bath for holding and heating molten metal includes an elongate container which is supported in the bath with one end extending out of the bath and the other extending into the bath. An entry port is formed in the side of the container to allow molten metal to flow into the container and an exit port is formed in the container adjacent the top and above the bath. A uniquely formed plunger seated in the container moves downward into the bath, then upward out of the bath, trapping a predetermined amount of molten metal above its top surface. The formation of the plunger facilitates flow of the molten metal out of the container when the plunger reaches the exit port.

Abstract: A liquid dispensing pump particularly designed for dispensing measured amounts of edible liquids such as molten chocolate into molds, that may be of varying capacities. The pump dispenses, from a filled pump barrel, on outward movement of a valved piston and the quantity dispensed is determined by the position of a stop pin in a notched tube that is moved in unison with the piston rod and pivoted stop plates that limit movement of the stop pin. The pump is readily disassembled for cleaning and is adapted for easy mounting on a tank.

Abstract: A trigger-like actuating element for association with a pump having a depressible piston or plunger for dispensing small metered quantities of a liquid from a container such as a jar, bottle or can, the trigger-like element being designed to be manually operated for substantially horizontal movement to thereby depress vertically the pump piston or plunger in order to deliver a quantity of liquid, usually as a spray, in a horizontal direction.

Abstract: A trigger-like actuating element for association with a pump having a depressable piston or plunger for dispensing small metered quantities of a liquid from a container such as a jar, bottle or can, the trigger-like element being designed to be manually operated for substantially horizontal movement to thereby depress vertically the pump piston or plunger in order to deliver a quantity of liquid, usually as a spray, in a horizontal direction.

Abstract: Various means for controlling the rate of travel of a plunger through a pump chamber in a dispensing pump are disclosed including an arrangement in which a cap is slidably mounted to the upper end of the pump plunger and a spring interposed between the cap and plunger with a detent mounted on the container contacting the plunger to prevent downward motion so that as the cap is depressed it is moved downwardly relative to the plunger preloading the spring and in which, after a predetermined degree of motion of the cap relative to the plunger, the lower end of the cap releases the detent to that the preload expands driving the plunger downwardly at a uniform rate. In another illustrated embodiment a preload spring is disposed within the pump between a plunger stem and plunger piston, the hydraulic forces within the pump chamber permitting the spring to be compressed before an outlet passage is opened, the spring once again acting to permit uniform discharge.

Abstract: A bottle with an electrically-operated pump. The boxed cover containing dry cells, a motor and a switch, and the fistulous plug for stopping a mouth of a vacuum bottle are composed separately. The boxed cover hinges the upper and rear part of the vessel. The fistulous plug connects an inner pipe extending downward to an outer pipe extending laterally. A propeller shaft having a propeller at the lower end passes through the fistulous plug and the inner pipe. The rotation of the motor is transmitted to the propeller shaft by a clutch assembly.

Abstract: A dispenser adapted for mounting upon a liquid container has a manually or machine operable plunger in a depending barrel with check valves communicating the lower end of the barrel with the interior of the container and a dispenser extending at an angle upwardly therefrom with a vertically slidable gauge having an upper end engaging the plunger to adjustably fix the maximum stroke thereof and presenting a substantially flat upper profile in the lowered position of gauge and plunger.

Abstract: A finger-operable pump, adapted to be mounted on a hand-held container of liquid consumer product to provide an unpressurized dispenser package, includes a housing, that defines a pumping chamber, and a plunger telescopically received in the chamber for conventional pumping movement. A stem formed with the plunger projects outwardly of the housing. The pump further incorporates an inprovement in the form of an automatically operable seal arrangement for preventing leakage of liquid which comprises a conical valve seat formed about the mouth of a discharge passage through the plunger and stem and a valve element, having dome-shaped and conical portions, located in the pumping chamber to sealingly engage the valve seat. An actuator button is mounted on the outer end of the plunger stem and is linked, through an elongated connecting rod, to the valve element to move it out of engagement with the valve seat and then to reciprocate the plunger into the pumping chamber away from a home position.

Abstract: A finger-operated spray pump assembly adapted to maintain a seal against leakage under substantially all conditions normally encountered by the pump. The assembly includes a compression chamber, a piston slidable in the housing, a grommet for holding the piston in the compression chamber, a stem slidable in the piston, and a seal member abutting the piston. The lower end of the valve stem contacts the seal member to open the seal slightly before the piston starts its downstroke. A closure member for the container to be used is permanently attached to the spray pump.

Abstract: A fluid dispenser pump having a piston extending from one end of a cylinder with resilient means urging the piston from the cylinder to its extended position for manual movement into the cylinder to its retracted position, said piston and cylinder being elastomeric plastic members, with complementary cylindrical walls forming a sequence of chambers. An inlet chamber communicates with a fluid supply. An auxiliary pressure chamber is normally sealed from the inlet chamber, but it communicates with the inlet chamber whenever the piston is at its fully extended position. An operating chamber communicates with the auxiliary pressure chamber and a first check valve means between the chamber permits flow from the auxiliary pressure chamber to the working chamber, but prevents a reversal of such flow. A discharge chamber communicates with the working chamber and a second check valve means between the chambers permits flow from the working chamber to the discharge chamber but prevents a reversal of such flow.

Abstract: A finger-operated spray pump assembly including a compression chamber, a generally cylindrical valve slidably fitted inside the compression chamber, a piston slidably fitted inside the valve, and a spring fitted inside of the valve for urging the piston away from the bottom end of the valve.

Abstract: A spraying and watering can is herein disclosed. The spraying and watering can includes a container. The container includes a reservoir. A hollow carrying handle, having a vent hole formed therein, is connected to the reservoir. A spout is also connected to the reservoir. The spout is positioned below the vent hole. A sprayer is connected to the hollow carrying handle and to the reservoir. The spout is adapted to deliver a stream of water to a plant. The sprayer is adapted to deliver a water mist to the plant.

Abstract: A piston displacement liquid spray pump comprises a container; a supporting ferrule engaged on the neck of the container, a hollow cylindrical housing supported by the ferrule, and having at least one slit at its upper end to permit air communication between the container and the atmosphere; a stem within the housing; a hollow stem extension telescopically engaged outwardly of the upper section of the stem; an actuator engaging the upper end of the stem extension and capable of biasing it and the stem downwardly; a check valve comprising a seat at the lower end of the housing, a valve chamber above the seat and a bullet-shaped hollow floating valve member; a longitudinal groove along the upper section of the stem and communicating with the hollow extension; a piston slidably movable within said housing and mounted on the lower end of the hollow stem extension with a lost motion engagement to enable the piston to obstruct the groove during its upward stroke and to uncover same during its downward stroke; the p

Abstract: An atomizer comprises a cylinder defining a pump chamber and containing a piston. The chamber communicates with an atomizer nozzle by a valve comprising a valve member which is opened at a predetermined liquid pressure during operation of the piston to pressurize the liquid in the pump chamber. Liquid is fed into the pump chamber through a conduit which projects upwardly into the cylinder. A sleeve rigid with the valve member or the piston engages the conduit during operation of the piston to prevent communication between the conduit and the pump chamber.

Abstract: A printing plate is mounted on a driven print cylinder, and ink is applied to the face of the plate by an ink applying roll which forms a nip with an ink distributing roll positioned below and horizontally offset from the ink applying roll. The rolls are driven in timed relation by a set of connecting gears and are adjustable as a unit independently on opposite ends for selecting precision uniform contact of the ink applying roll with the printing plate. In addition, the ink distributing roll is adjustable on opposite ends independently relative to the ink applying roll for precisely adjusting the nip between the rolls without changing the drive relationship. The ink is supplied to the rolls by an ink recirculating pump actuated by a cam driven by the same motor which drives the print cylinder, the ink rolls and an optional web cut-off unit.

Abstract: A miniature type, rechargeable atomizing spray mechanism including a receptacle for the liquid to be atomized, and further including a cap and axially aligned first and second pressure chambers, one of which depends within the receptacle while the other projects above the cap. A reciprocable spray head is arranged to cooperate with plural pistons, one each of which are slidably arranged in said first and second pressure chambers. Upper and lower valve members are available to control the emission of spray. The upper valve is maintained closed by a spring element, and the lower valve is opened by reciprocation of the spray head to permit withdrawal of the liquid from the container so that it may pass through a bore provided between the plural pistons and be emitted as a spray from the spray head.

Abstract: Pump for spray dispenser has spring-pressed annular piston serving as an accumulator and controlling flow through the pump discharge so that no discharge passes unless and until pressure within the pump housing is sufficiently high.

Abstract: An easily assembled, low cost, disposable pump is disclosed for use with household liquid product containers. The pump is designed to prevent leakage of the product regardless of container attitude and comprises hollow outer and inner cylinders, each having an end wall, the cylinders being nested in telescoped manner with their end walls in spaced adjacency to form an intake valve chamber and a superimposed product receiving and discharging pump chamber. Liquid inlet duct means is formed in the respective end walls of each cylinder for admission of fluid, and a plunger assembly including a hollow stem and a piston is slidably received in the inner cylinder for reciprocable pumping action therein. The hollow stem provides communication between the pumping face of the piston and atmosphere, via a check valve disposed in the stem. A second check valve is disposed in the valving chamber formed by the telescoped cylinders.

Abstract: A metering and dispensing apparatus is disclosed for metering and dispensing liquid bath products such as shampoo and the like comprising a plurality of dispensers of the pump type secured to a rack member wherein the rack member has a securing device affixed thereto by which the rack member and dispensing apparatus may be readily affixed to a bathroom wall.

Abstract: The machine base of an injection molding machine is constructed to form a hydraulic tank; the hydraulic power unit is mounted in a vertical wall of this tak so that the pump is positioned inside the tank while the electric motor remains outside. Mounting flanges clamp the power unit against the tank wall, with vibration-absorbing resilient compression members interposed between the flanges and the wall. The latter is reinforced around the opening by a supporting and centering profile in the area of flange overlap.

Abstract: A hopper for disposing of machining refuse which comprises a hopper body having an inlet zone at one end and an outlet zone at the other end thereof, said outlet end being angled from said inlet end, said hopper body being provided with side walls which extend outwardly towards said outlet end, so that the diameter of the outlet end is larger than the diameter of the inlet end, gate means operatively associated with said outlet end for opening and closing said outlet end and a screw conveyor means rotatably disposed in the lower portion of the hopper, said screw conveyor means being directed toward the outlet of the hopper.

Abstract: The invention relates to a cylinder and plunger pump for transferring very small quantities of dosed liquids.The purpose of the invention consists in the realization of relatively small pumps of which the piston need only perform a very small reciprocating movement in order to pump up the liquid, whereby no disturbances may occur.

Abstract: An atomiser having a tapered pump chamber in which a valved lipped piston is slidably mounted, the piston being compressed radially inwardly by the tapered pump chamber to ensure a tight seal between the valve and its valve seat.

Abstract: A hand-held pump dispenser comprising a container having a neck portion, a pump assemblage including a piston and a tubular stationary cylinder member, the latter being adapted for disposition in the neck portion, and a resilient press-fit adapter carrying the cylinder member of the pump assemblage and arranged for insertion in the neck portion so as to make a tight press fit therewith. Interlocking means are provided on the cylinder member and on the adapter for enabling the latter to be snapped onto the member; additional means on the container neck and the adapter are provided for enabling the two parts, when assembled, to be snapped into the neck portion. The arrangement is such that all parts can be readily molded in simple mold cavities and easily assembled with a minimum of time and effort, and in the absence of special tooling or equipment.