US 12,138,642 B2
Pump head and metering device
Hyeck-Hee Lee, St. Ingbert (DE); Frank Holzer, St. Ingbert (DE); Ute Steinfeld, St. Ingbert (DE); and Markus Mahler, Völklingen (DE)
Assigned to F. Holzer GmbH, St. Ingbert (DE)
Appl. No. 17/250,880
Filed by F. Holzer GmbH, St. Ingbert (DE)
PCT Filed Sep. 20, 2019, PCT No. PCT/EP2019/075311
§ 371(c)(1), (2) Date Mar. 18, 2021,
PCT Pub. No. WO2020/058469, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 10 2018 216 060.0 (DE), filed on Sep. 20, 2018.
Prior Publication US 2021/0346900 A1, Nov. 11, 2021
Int. Cl. B05B 11/00 (2023.01); B05B 11/10 (2023.01)
CPC B05B 11/0067 (2013.01) [B05B 11/1016 (2023.01)] 45 Claims
OG exemplary drawing
 
1. A pump head for a metering device for a metered dispensing of a fluid comprising:
a head part having a discharge opening for the fluid to be dispensed, wherein the head part has an inner surface;
an elastic valve that has a surface facing the inner surface of the head part, wherein the elastic valve includes at least two sealing lips, wherein the at least two sealing lips are formed peripherally around each other, wherein at least one sealing lip of the at least two sealing lips is formed peripherally around the discharge opening, and wherein the at least two sealing lips are formed on and protrude from the surface of the elastic valve; and
a first component that has a passage opening for the fluid to be dispensed via, a flowing in of the fluid between the head part and the elastic valve while deforming at least one of, the elastic valve or the at least one sealing lip, and wherein an intermediate space is formed between the at least one sealing lip and the head part during an actuation state, wherein the head part and the first component are connected positively-locking and in a force-fitting manner while enclosing the elastic valve between the head part and the first component.