Manually actuated dropper
AssigneePohl GmbH & Co. KG
InventorKlaus Derksen
Life of this patent
Estimating the term…
Abstract
A manually actuated dropper device for the mouth of a liquid container that delivers finely metered dosages of liquid is disclosed. The dropper comprises an elastically deformable bellows which can sealingly be fastened onto the mouth of a container along with a threaded cap. The bellows are perforated in a protruding region by a hole serving as a dropper opening. Two spring tongues are also attached to the container; these at least partially surround the bellows and extend substantially parallel to the longitudinal direction of the bellows. The protruding ends of the tongues can be elastically displaced towards each other, thereby squeezing the bellows. Stop surfaces on the spring tongues control the degree to which the bellows are squeezed.
Claims10
A manually actuated dropper device for the mouth of a liquid container, comprising:
- an elastically deformable bellows having longitudinal axis and a protruding region, said protruding region of said bellows having a perforation for serving as a dropper opening;
- attachment means for sealingly connecting the bellows to the mouth of a container;
- and
- two spring tongues connected to said attachment means, said spring tongues
- being configured to extend at least partially around the bellows and extending substantially parallel to the longitudinal axis of the bellows;
- said spring tongues having protruding end portions that can be displaced towards each other, thereby deforming the bellows located there between;
- and
- stop surfaces on the ends of the spring tongues, wherein the degree to which the spring tongues can be displaced towards each other is limited to a fixed value by the mutual contact of said stop surfaces;
- wherein the spring tongues and the protruding region of the bellows having the perforation project upwordly away from the attachment means.
A device for administering controlled doses of liquid, comprising:
- I) a container having a mouth;
- and
- II) a dispenser fitted to the mouth of the container, said dispenser comprising:
- an elastically deformable bellows having longitudinal axis and a protruding region, said protruding region of said bellows having a perforation for serving as a dropper opening, the protruding region of said bellows projecting upwardly away from the container so that the perforation is axially displaced away from the container;
- attachment means for sealingly connecting the bellows to the mouth of a container;
- and
- two spring tongues connected to said attachment means and protruding upwardly away from the container, said spring tongues
- i) being configured to extend at least partially around the bellows and extending substantially parallel to the longitudinal axis of the bellows;
- ii) said spring tongues having protruding end portions that can be displaced towards each other, thereby deforming the bellows located there between;
- and
- iii) stop surfaces on the ends of the spring tongues, wherein the degree to which the spring tongues can be displaced towards each other is limited to a fixed value by the mutual contact of said stop surfaces.
Dependencies are inferred from the claim text.