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US 12,138,642 B2Granted
Pump head and metering device
AssigneeF. Holzer GmbH
InventorsHyeck-Hee Lee, Frank Holzer, Ute Steinfeld, Markus Mahler
Life of this patent
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Abstract
The invention relates to a pump head (I) with a specially designed flexible valve (20) which securely connects the pump head. The valve ensures the pump head is securely closed. The invention also relates to a metering device which can be designed, for example as a squeeze bottle, as a non-airless system or as an airless-system. Said metering device comprises the claimed pump head.
Claims45
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.
1 more element
A metering device comprising:
- a pump head connected to a storage vessel, the pump head comprising:
- a head part, the head part including a discharge opening for fluid to be dispensed, wherein the head part includes an inner surface;
- an elastic valve, the elastic valve including a surface that faces 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, the first component including a passage opening for the fluid to be dispensed through, wherein a flowing in of the fluid between the head part and the elastic valve is made possible while deforming at least one of the elastic valve or the at least one scaling 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.
2 more elements
A pump head for a metering device for a metered dispensing of fluid, the pump head comprising:
- a head part, the head part including a discharge opening for fluid to be dispensed, wherein the head part includes an inner surface;
- an elastic valve, the elastic valve, the elastic valve comprising:
- a surface that faces the inner surface of the head part;
- and
- at least two sealing lips, wherein the at least two sealing lips are formed on the surface peripherally around each other, wherein at least one sealing lip of the at least two sealing lips is located peripherally around the discharge opening of the head part, and wherein the at least two sealing lips protrude from the surface;
- a head;
- an elastic wall;
- and
- a first component, the first component including a passage opening for the fluid to be dispensed through a flowing in of the fluid between the head part and the elastic valve is made possible 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.
6 more elements
Dependencies are inferred from the claim text.