The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1998
Filed:
Sep. 17, 1996
Meinrad Rosse, La-Tour-De-Peilz, CH;
Nestec S.A., Vevey, CH;
Abstract
The present invention relates to a nozzle assembly for dosing liquid while preventing spillage or dripping between the dosing. This nozzle assembly includes a dosing chamber (4) has an inlet (21), a piston housing wherein a piston plunger (5) is disposed, and an outlet (22) communicating with a distribution channel (10), a first one-way valve to open the inlet (21) when the dosing chamber (4) is being filled and to close the inlet (21) when a dose is being emptied out from the dosing chamber (4) into the distribution channel. The nozzle assembly furthermore comprises a second one-way valve (3) and a pressure release valve (23) to open a distribution channel outlet (27) when pressurized to a desired pressure. This pressure release valve (23) has an elastic cover (19) tightly fitted around the distribution channel outlet (27) and a distribution chamber having one or more needles (13) through which the liquid is dosed. The invention also relates to a process for dosing of a liquid while preventing dripping between the doses.