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Last Updated: December 22, 2024

Claims for Patent: 8,292,129

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Summary for Patent: 8,292,129

Title:	Dispensing device
Abstract:	A dispensing device for liquid media having a housing, a medium reservoir, an outlet opening for dispensing the medium and an inlet opening for intake of air for the purpose of volume equalization in the medium reservoir, wherein a cap is provided that is fittable onto the housing and protects the outlet opening when in the fitted state. The cap closes the inlet opening in gas-tight manner from an environment on the one hand and from the outlet opening on the other hand.
Inventor(s):	Stadelhofer; Peter (Singen, DE), Greiner-Perth; Juergen (Gottmardingen, DE)
Assignee:	Ing. Erich Pfeiffer GmbH (Radolfzell, DE)
Application Number:	12/657,081
Patent Claims:	1. Dispensing device for dispensing liquid media comprising: a housing; a medium reservoir; an outlet opening for dispensing the medium; and an inlet opening for intake of air for volume equalization in the medium reservoir; wherein a cap is provided that is removably fittable onto the housing and protects the outlet opening when in a fitted state; wherein the cap closes the inlet opening in a gas-tight manner from a surrounding atmosphere and from the outlet opening; and wherein the cap in the fitted state limits together with the housing a space closed-off gas-tight from the surrounding atmosphere, wherein the inlet opening opens into the space. 2. Dispensing device according to claim 1, wherein the inlet opening is provided in an area of an actuating button movable relative to the housing and designed as an inlet gap between the actuating button and the housing. 3. Dispensing device for dispensing liquid media comprising: a housing; a medium reservoir; an outlet opening for dispensing the medium; and an inlet opening for intake of air for volume equalization in the medium reservoir; wherein a cap is provided that is removably fittable onto the housing and protects the outlet opening when in a fitted state; wherein the cap closes the inlet opening in a gas-tight manner from a surrounding atmosphere and from the outlet opening; wherein the cap in the fitted state limits together with the housing a space closed-off gas-tight from the surrounding atmosphere, wherein the inlet opening opens into the space; and wherein the cap in the fitted state is in contact with the housing along two all-round contact tracks, with the space being provided between the two contact tracks. 4. Dispensing device according to claim 1, wherein the cap has at least one vent opening via which the outlet opening is connected to the surrounding atmosphere.

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