PUMP FOR DISPENSING FLUID MEDIA Russian patent published in 2019 - IPC B05B11/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to pumps of the type used for dispensing fluids, for example products such as soaps, gels, disinfectants, wetting agents and the like. Pump for dispensing fluid products from the product container contains a single pump casing defining the A axis and containing the pump chamber, the pump inlet and the pump outlet. Pump chamber is compressible during an axially directed pumping stroke from the initial state to the compressed state and displaceable to return to its original state during the return stroke. Pump also contains an inlet valve to allow one-way passage of fluid through the pump inlet and into the pump chamber and the exhaust valve to allow one-way passage of fluid from the pump chamber through the pump outlet. In addition, the pump contains a compressible in the axial direction of the spring located inside the pumping chamber and configured to at least partially support the pump casing during its compression. Spring contains a first end portion that engages at the pump inlet, a second end portion that engages at the outlet of the pump, and a spring housing between them. Spring housing contains a plurality of axially aligned leaf spring sections. Each of the sections can be compressed in the axial direction from the initial open state to the compressed state and is shifted for subsequent expansion into its open state. Axial compression of the spring creates a restoring force therewith that at least partially displaces the pumping chamber to its original state. Pump assembly comprises a pump and a pair of sleeves adapted to interact with the slide for guiding the pump during the pump stroke, including a fixed sleeve coupled to the pump inlet, and a sliding sleeve coupled to the release of the pump. Disposable fluid-dispensing package contains a pump or pump unit, tightly connected to a compressible container for the product. Method for dispensing a fluid from a pump or pump assembly comprises applying an axial force to the pump housing between the pump inlet and the pump outlet to overcome the displacement force and cause the pump chamber to contract during the pump stroke from its original state to the compressed state. Fluid contained in the pumping chamber is discharged through the discharge of the pump therewith. Then, the axial force is removed, allowing the displacement force to return the pump chamber to its original state during the return stroke. Fluid is drawn into the pumping chamber through the pump inlet therewith. Dispenser is made to embody the method on disposable fluid-dispensing packaging.

EFFECT: pump is proposed for dispensing a cleaning sterilizing product or skin care product.

27 cl, 21 dwg