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:
Nov. 01, 2016
Filed:
Sep. 30, 2013
Nestec S.a., Vevey, CH;
Matthieu Ozanne, Champanges, FR;
Didier Vuagniaux, Gimel, CH;
Nestec S.A., Vevey, CH;
Abstract
The present invention is directed to a check valve, an injection assembly, and a beverage preparation machine, which is integrated in the injection assembly. The check valveof the present invention is made of a body with a first fluid outlet, and a plug memberthat is movable inside the body. The plug memberhas a fluid inletand a second fluid outletinto a first cavity, wherein the fluid can exercise a pressure on a first surfaceof the plug memberopposing the first fluid outlet. The fluid pressure can overcome the force of an elastic element, which biases the plug memberinto a closed position. If the force of the elastic memberis overcome, the plug memberis moved into an open position. In the closed position a fluid path from the cavityout of the first fluid outletis closed, whereas in the open position said fluid path is open. To move the plug memberfrom its initial closed position to its open position, a fluid pressure on the first surface has to be equal to or larger than a predetermined threshold.