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:
Sep. 21, 2021
Filed:
Jul. 27, 2017
Luigi Lavazza S.p.a., Turin, IT;
Luigi Lavazza S.p.A., Turin, IT;
Abstract
A machine for preparing beverages has a hydraulic circuit including a normally open discharge valve, which comprises a main inlet connected to a fluid actuator, a main outlet connected towards a collecting space, and a valve member between the main inlet and the main outlet, for enabling and preventing a flow of fluid between the main inlet and the main outlet. The discharge valve is a hydraulically driven valve, which also comprises a driving chamber for hydraulic driving the valve member. The driving chamber has an auxiliary inlet, connected to the delivery of a pump, and an auxiliary outlet, connected to a brewing unit and to the fluid actuator, in such a way that water delivered by the pump passes through the driving chamber before reaching the brewing unit and the fluid actuator, respectively. The driving chamber has a further outlet, connected in fluid communication to a device for spillage of water from the driving chamber.