A gas dosing apparatus is provided that includes an inlet configured to receive gas, and a directional control valve connected to the inlet and having a first position and a second position. The gas dosing apparatus also includes a fixed volume reservoir connected to the directional control valve and receiving gas from the inlet, via the directional control valve, while the directional control valve is in the first position. The gas dosing apparatus further includes an outlet connected to the directional control valve and outputting a gas dose received from the fixed volume reservoir, via the directional control valve, while the directional control valve is in the second position.

A squeeze doser with a childproof cap is described herein. The squeeze doser with a childproof cap includes a container, a reservoir, and a cap. The container includes a neck. A reservoir is coupled with the neck of the container, wherein the reservoir further comprises a spout and at least one notch located on an outer surface of the neck, said spout coupled with a fill tube that guides liquid stored in the container to the spout, the spout including one or more holes positioned to maintain a predetermined dosage of liquid within the reservoir. The cap is releaseably attached to the neck and includes at least one protrusion that is configured to mate with the at least one notch of the neck, whereby the at least one protrusion coupled with the at least one notch renders the container childproof.

A doser assembly includes a hopper assembly configured to receive filler material, a vibration transmission assembly coupled to the hopper assembly, and a paddle in a hopper opening that extends through the hopper assembly. The vibration transmission assembly includes a shaft that is configured to rotate around a central rotation axis, an eccentric that is fixed to the shaft and has a center that is radially offset from the central rotation axis, a connecting rod that is pivotably connected to the center of the eccentric, and a bracket that is pivotably connected to the connecting rod. A first end of the paddle is pivotably coupled to the hopper assembly at a paddle pivot joint. The paddle is fixed to the bracket of the vibration transmission assembly separately from the hopper assembly. The vibration transmission assembly is configured to cause the paddle to reciprocatingly pivot around the paddle pivot joint.

A system and method for determining when a sand separator should be purged to remove solids from the sand separator. The system can include an acoustic sensor which detects the frequency of audible sound coming from the inner chamber of the vessel and generate a signature signal representative of the frequency of audible sound. There is a processor connected to the acoustic sensor and configured to compare the signature signal with a set frequency range of audible sound which in turn generates a signal indicating when the signature frequency and the set frequency are in overlapping relationship.

A fluid storage and dispensing system that safely and efficiently stores all grades of motor oil is provided. The system is configured to accurately dispense motor oil into vehicles. The system may also be used for the storage of and dispensing of other fluids.

Spill and contaminant resistant dispensers and measuring cap devices and methods for measuring and dispensing a desired amount of a bulk particulate, powdery, granular or viscous liquid substance from a storage container through a cap or a dispenser are provided. A dispenser and measuring cap is attached to a storage container or comprises an integral storage container. The dispenser and measuring cap has one or more measuring chamber ducts, each having a different predetermined volume. The measuring chamber ducts are selectively and separately operationally aligned with an internal funnel stem and a dispensing spout. A selected measuring chamber duct is filled with the substance by inverting the cap and attached container. A measured amount of the substance is captured and dispensed, and the unused portion of the substance retained in the storage container without exposure to outside contaminants or implements, by rotating the duct into operational alignment with the spout.

Fluid transport approaches are described that operate without the need for precise displacement of an actuator and with little or no sensing in the flow path. In certain implementations, a gas phase in a fluid reservoir is compressed by a pressure source such that releasing the pressure, such as by opening a valve to an intermediary conduit, displaces fluid to the intermediary chamber. Closing that fluid path and opening a different fluid path to a chamber at ambient temperature causes the fluid to be displaced to the chamber.

A liquid dosing device for dispensing a metered dose of liquid from a squeezable container, comprising an outlet passage leading to a discharge opening; a dosing chamber positioned behind said discharge opening and having at least one entrance opening allowing a charging flow of liquid from said container into said dosing chamber under the influence of weight of liquid, and a drive opening allowing a control flow of liquid from said container into said dosing chamber in response on a rise of pressure of liquid in the squeezable container; a floating plunger movably arranged in the dosing chamber so as to advance upon said rise of pressure from a rest position in which under the influence of a lifting force of buoyancy said floating plunger closes said drive opening, into a blocking position in which said floating plunger blocks said outlet passage, wherein said floating plunger when advancing into said blocking position, pushes said liquid charged into said dosing chamber, to said outlet passage; a stop seat upon which said floating plunger acts in its blocking position, and a sealing lip for closing said outlet passage, being arranged such that a seat-sided portion of the floating plunger or a plunger-sided portion of the stop seat and said sealing lip is formed, particularly injection-mold, of one single piece of the same plastic material.

A fluid measuring and dispensing device comprises a bottle engaging element having a bottom portion configured for removably sealably engaging the mouth of the bottle, a fluid container movably mounted on a top portion of a bottle engaging element and defining a fluid chamber, and a mist spray pump connected to the fluid container and having a fluid input port in fluid communication with the chamber. The fluid container is movable between a first position and a second position relative to the bottle engaging element. When the fluid container is in the first position, the chamber is sealed from the interior of the bottle. And when the fluid container is in the second position, at least one passageway extends throughout a bottom wall of the fluid container and throughout the bottle engaging element respectively, such that the chamber is in fluid communication with the interior of the bottle.

A fluid measuring and dispensing device comprises a bottle engaging element having a bottom portion configured for removably sealably engaging the mouth of the bottle, a fluid container movably mounted on a top portion of a bottle engaging element and defining a fluid chamber, and a mist spray pump connected to the fluid container and having a fluid input port in fluid communication with the chamber. The fluid container is movable between a first position and a second position relative to the bottle engaging element. When the fluid container is in the first position, the chamber is sealed from the interior of the bottle. And when the fluid container is in the second position, at least one passageway extends throughout a bottom wall of the fluid container and throughout the bottle engaging element respectively, such that the chamber is in fluid communication with the interior of the bottle.