Vented liquid dispenser and attachment cap therefor
OwnerJonathan Z. Whiteinventor
Life of this patent
Estimating the term…
Abstract
A vented gravity dispenser for a liquid contained in a closed container. A clamp comprising a bevelled skirt, split compression ring and a nut are provided to sealingly attach said dispenser to said container. The present disclosure also details a dual acting valve, comprising a liquid discharge part and an air inlet part, which are co-operatively actuated.
Claims10
A liquid container in combination with a main cap, said container having side walls and an outlet comprising a mouth and a neck of standard shape, said neck having a conical part with an outside diameter increasing downstream relative to said container, said main cap removeably attached to said container mouth by means of:
- a) a skirt comprising a threaded outer surface, a cylindrical inner surface sized to fit slidingly over said mouth, and an open end bevelled conically outward;
- and,
- b) a nut in threaded engagement with said skirt threaded outer surface, comprising an internal threaded surface defining a diameter and open to one end, and a ring part extending normal to said internal threaded surface and having a bearing surface facing said open one end;
- and,
- c) a split compression ring of resilient material, with a section removed to provide for decreasing diameter during compression, having a downstream outer surface in sliding contact with the bevelled open end of said skirt, an upstream end surface in circular sliding contact with the bearing surface of said ring part, and a downstream end surface of lesser diameter than said upstream end surface in angular contact with said conical part of said neck.
A vented dispenser valve for gravity liquid dispensing from a closed container, said dispenser valve comprising:
- a) a valve housing with an annular primary sealing surface;
- and,
- b) a tubular valve member, bearing in releasable sealing contact with said primary sealing surface;
- and,
- c) a vent valve seat, fixed to said tubular valve member upstream from said primary sealing surface, comprising a vent sealing surface peripheral to a vent port;
- and,
- d) a vent closure in releasable sealing contact with said vent valve seat;
- and,
- e) valve closing force exerting means, configured to exert a closing force on said valve member and on said vent closure;
- f) a lifter, comprising a means for countering closing forces exerted by said valve closing force exerting means.
Dependencies are inferred from the claim text.