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| Number | Title | Issue Date |
| 4260082 | Manually operated liquid dispensing device A manually operated, hand-held rechargeable liquid dispensing container device having a non-pressurized, either refillable or non-refillable receptacle or reservoir, is disclosed. The device comprises a relatively reciprocating piston and cylinder definin... | 04/07/1981 |
| 4254806 | Apparatus for filling caulking tubes in a clean manner An apparatus for filling caulking tubes in a clean manner with a liquid viscous composition wherein in the passage tube from which the viscous composition passes into the caulking tube there is attached a suck-back means comprising an air activated piston... | 03/10/1981 |
| 4249681 | Leak-proof sprayer A manually operated sprayer for dispensing liquids from a container includes an improved, self-sealing outlet check valve having a resilient diaphragm convexed toward and in seating engagement with the dispensing orifice. The diaphragm is designed to flex... | 02/10/1981 |
| 4243159 | Pump devices for dispensing fluids A spring actuated pump device is mounted on a container for fluids, the device including a pump chamber into which fluid from the container can flow, the spring expanding and forcing a cylinder structure against the fluid in the chamber to pressurize it, ... | 01/06/1981 |
| 4239131 | Self-priming liquid dispenser A container having an opening in its top by which it may be filled with liquid and an opening in its bottom through which liquid may be expelled. The bottom opening is covered by the distal end part of a first rod which is surrounded by a gasket; the firs... | 12/16/1980 |
| 4235265 | Aseptic container filler apparatus A mechanism and method for filling containers within a sterile chamber under aseptic conditions includes a vertically disposed nozzle (48) which forms an extension of the sterile chamber and which is arranged to have its lower outlet end inserted into an ... | 11/25/1980 |
| 4234107 | Tube filling machine having an adjustable stroke, cam operated piston A tube filling and closing machine includes a material feeding device which comprises a container for the material to be packaged which opens into a cylinder in which a piston is movable backwardly and forwardly for taking in the material from the contain... | 11/18/1980 |
| 4231493 | Lever pump with button actuator A pumping system is provided in which actuation of a piston and cylinder device is provided by a combination of a button and a lever. The lever magnifies the force applied to the button so that the pumping system operates at high pressure when pumping liq... | 11/04/1980 |
| 4230277 | Trigger type sprayer with integrally formed locking nozzle cover A trigger type sprayer comprises a nozzle cover integrally formed with the nozzle and connected to the nozzle through an integral hinge. The nozzle cover includes a seal section for sealing the ejection hole of the nozzle. An engagement section is provide... | 10/28/1980 |
| 4229413 | Adjustable device for distributing liquid samples The present invention relates to an adjustable device for distributing liquid samples, comprising a casing incorporating a mechanism for adjusting the volume and a volume indicator unit; a tip member which comprises a lateral supply tube, provided with me... | 10/21/1980 |
| 4227628 | Fluid dispensing pump having axially deformable valve In the illustrative embodiments of the invention disclosed, a non-aerosol pump includes a housing, a barrel within the housing forming a valve chamber, a pumping chamber within the barrel, a valve gland within the valve chamber for controlling intake and ... | 10/14/1980 |
| 4227650 | Fluid dispenser and nozzle structure A fluid pump dispenser 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 adj... | 10/14/1980 |
| 4225060 | Continuous pumping system A pumping system is disclosed in which a storage compartment formed by a spring loaded piston and cylinder assembly is provided with a spring which stays at a relatively constant length when pumping product to keep a relatively constant pressure on the pr... | 09/30/1980 |
| 4225063 | Fluid dispensing pump assembly An atomizing pump assembly for use with a variety of types of containers is disclosed in which a housing is formed with both an outlet port and an internal fluid chamber that communicates via a passageway with the outlet port. Tubular means provides commu... | 09/30/1980 |
| 4222500 | Non-propellant, duration spray dispenser with positive shut off valve A non-propellant operated, duration spray dispenser includes structure for mechanically pressurizing the material to be dispensed by pumping it into an expansible bulb for storage under pressure for subsequent dispensing of the material, and a snap-acting... | 09/16/1980 |
| 4204614 | Fluid dispenser having a spring biased locking mechanism for a safety nozzle cap A fluid dispenser includes an actuator containing fluid passages defining a discharge path for fluid from a supply container to a discharge orifice, a needle valve lying adjacent the discharge path, a nipple surrounding the needle valve and a nozzle cap h... | 05/27/1980 |
| 4201317 | Finger actuated pump assembly A manually operable dispenser pump construction wherein liquid product is received from a supply container into an axially compressible bellows. The bellows in turn includes product discharge valve means associated therewith and adapted to move between op... | 05/06/1980 |
| 4199082 | Hot melt adhesive gun A hot melt adhesive gun capable of dispensing relatively large volumes of molten adhesive and comprising a hot melt chamber and a pressurized air chamber separated by a moveable element which isolates the chambers one from the other. Molten adhesive from ... | 04/22/1980 |
| 4192361 | Apparatus for filling capsules and the like An apparatus for dispensing liquid or pasty substances to gelatin capsules and the like, in particular for dispensing pharmaceutical products thereto. In order to maintain the substance to be dispensed in relative motion to prevent deleterious thickening,... | 03/11/1980 |
| 4182496 | Actuator button for fluid dispenser An actuator button assembly for a finger-operated fluid dispenser including a compression chamber located in the actuator button, a piston slidably located in the compression chamber, an insert having an orifice therein fitted adjacent to the compression ... | 01/08/1980 |
| 4179049 | Pump dispenser A dispenser apparatus for receipt on a receptacle and operable to dispense a volume of liquid from a reservoir through an orifice includes means for injecting air into the liquid being dispensed to increase the level of atomization. The means includes a s... | 12/18/1979 |
| 4178929 | Dosing device for germ-free measurements and filling of liquid material A dosing device for germ-free measuring and filling of liquid material into containers. The dosing device has a dosing pump situated between a material supply chamber and a material filling chamber. In particular the pump has an extended chamber which per... | 12/18/1979 |
| 4170253 | Bakery mix dispenser having pump actuated outlet gate This dispensing device is for use with a mixing bowl having a discharge port. The device is connected to the bowl below the discharge port to receive mix from the bowl and includes a horizontal dispensing chamber having a discharge port at one end. A plun... | 10/09/1979 |
| 4168787 | Variable stroke fluid lubricant dispenser A head assembly for a fluid lubricant dispenser including a piston cavity having inlet and outlet ports disposed near the bottom of the cavity. The inlet and outlet ports are controlled by check valves that function oppositely and simultaneously to allow ... | 09/25/1979 |
| 4165208 | Intravenous delivery pump The present invention comprises a small, precise measuring pump provided with a germ barrier that is specifically designed for intravenous feeding devices and comprises: inlet and outlet chambers which are preferably integral one with the other, an inlet ... | 08/21/1979 |
| 4161262 | Multiple dosing device A multiple dosing device for the uniform dosing of liquids includes a plurality of dosing elements each including a dosing plunger; end connecting plates; sealing elements, interposed between the faces of adjacent dosing elements and between the faces of ... | 07/17/1979 |
| 4161288 | Fluid dispenser method and apparatus 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... | 07/17/1979 |
| 4155485 | Pump devices for dispensing fluids A spring actuated pump device is mounted on a container for fluid, the device including a pump chamber into which fluid from the container can flow, the spring forcing a cylinder structure against the fluid in the chamber to pressurize it, in order that o... | 05/22/1979 |
| 4153186 | Valve and medicant dispensing syringe A dispensing syringe comprising telescopically engaged inner and outer sleeves or cylinders having corresponding dispensing ends and open receiving ends, an insert cup extends across and is positioned in the outer cylinder at its dispensing end, and a pai... | 05/08/1979 |
| 4147280 | Pump device for dispensing fluids A device for dispensing fluids employs a manually actuated pump mounted in the neck of a conventional container. The pump includes a stationary piston and a shiftable cylinder which form a pump chamber. The piston includes a check valve which controls the... | 04/03/1979 |
| 4124147 | Flexible diaphragm dispensing system for condiments There is disclosed a novel dispensing unit and system for the controlled, metered dispensing of one or more liquid products. The unit which serves to provide an important part of the system is designed for use with an arrangement wherein pressurized liqui... | 11/07/1978 |
| 4105145 | Mechanically operated dispensing device A dispensing device includes a manually operable loading member carried by and accessible exteriorly of a container having a material to be dispensed, with the loading member connected through a gear arrangement with a material dispensing piston reciproca... | 08/08/1978 |
| 4088425 | Manually operated pump for disposable container 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 c... | 05/09/1978 |
| 4084731 | Fluid dispensing pump assembly An atomizing pump assembly for use with a variety of types of containers is disclosed in which a housing is formed with both an outlet port and an internal fluid chamber that communicates via a passageway with the outlet port. Tubular means provides commu... | 04/18/1978 |
| 4077494 | Grease gun A grease gun of the type wherein a dispensing head assembly having a lever-operated piston pump is screwed onto the head end of a grease-containing cylinder and wherein a spring-biased plunger and rod assembly in said cylinder is operative to feed grease ... | 03/07/1978 |
| 4059107 | Two step type pressurized injector A two step type pressurized injector comprising as main parts, a medicine chamber for holding an injecting liquid, a piston for pressurizing the injecting liquid, a nozzle hole for ejecting the injecting liquid, a power means for displacing said piston an... | 11/22/1977 |
| 4046291 | Device for pipetting and/or diluting A pipetting device which is readily adaptable to serve as a pipetting/diluting device. In accordance with the invention there is provided a tubular body having front and rear ends, the body having a central bore which narrows at the front end thereof to f... | 09/06/1977 |
| 4032044 | Liquid dispensing unit and system There is disclosed a system and dispensing unit for the controlled and metered dispensing of a liquid product, or of two or more liquid products, which should be combined in the right proportions only shortly before ultimate usage. The basic system, as di... | 06/28/1977 |
| 3979028 | Fluid injector A fluid injector unit wherein fluid from a chamber is deposited through an outlet passage in the chamber and onto a surface through the action of a first piston which moves in the chamber and a second piston which reciprocates within a bore in the first p... | 09/07/1976 |
| 3973700 | Bellows pump with extension having integral valves A pump or spray is comprised of a flexible bellows having a non-collapsible extension in which there are inlet and outlet ports. Flapper valves, integral with the extension, open and close the ports on the compression and expansion strokes of the bellows.... | 08/10/1976 |
