US 11,940,310 B2
Metering unit for free-flowing solids
Frank Pahl, Höpfingen (DE); Jürgen Böhrer, Heilbronn (DE); and Tobias Schmitt, Osterburken (DE)
Assigned to AZO Holding GmbH, Osterburken (DE)
Appl. No. 17/418,543
Filed by AZO Holding GmbH, Osterburken (DE)
PCT Filed Feb. 6, 2020, PCT No. PCT/EP2020/000034
§ 371(c)(1), (2) Date Jun. 25, 2021,
PCT Pub. No. WO2020/164791, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 10 2019 103 900.2 (DE), filed on Feb. 15, 2019.
Prior Publication US 2022/0026255 A1, Jan. 27, 2022
Int. Cl. G01F 11/08 (2006.01); G01G 13/00 (2006.01)
CPC G01F 11/088 (2013.01) [G01G 13/006 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A metering unit for flowable solids comprising an outlet nozzle which is moulded from a first flexibly elastic material and has at a first end thereof an inlet opening, the inlet opening being designed for fixing on an outlet of a storage container, the outlet nozzle having at a second end thereof a slot-shaped outlet opening, the slot-shaped outlet opening being formed between two opposite sealing lips of the outlet nozzle and elastically preloaded in a direction of a closed position thereof and can be transferred against elastic preloading thereof to an open position as a result of compressive forces which act approximately in a direction of extent thereof, wherein the slot-shaped outlet opening of the outlet nozzle is elastically preloaded into the closed position by a separate clamp made from a second flexibly elastic material, the clamp being mounted releasably on an outer circumference of the sealing lips bounding the slot-shaped outlet opening, wherein legs of the clamp, which rest on an outside of the sealing lips in a mounted state, are elastically preloaded in a direction of a position in which the legs are close together and can be moved elastically away from one another as a result of the compressive forces which act approximately in the direction of extent.