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. 20, 2022
Filed:
Jul. 28, 2017
Luigi Lavazza S.p.a., Turin, IT;
Luigi Lavazza S.p.A., Turin, IT;
Abstract
A machine for the preparation of beverages, comprising a hydraulic circuit that includes: —a brewing unit; —a water tank; —a pump having its inlet connected in fluid communication to the water tank and its outlet or delivery connected in fluid communication to the brewing unit; —a heating device for heating water forced by the pump towards the brewing unit; —a self-priming device (), which comprises a hollow housing structure (), having an inlet () in fluid communication with the outlet or delivery of the pump, and an outlet for spillage of water towards a collecting space, in particular the water tank. The self-priming device () comprises a spillage member (), which is set between the inlet () and the outlet (). The spillage member () has a body that is made of a material that is permeable to water and to air and that is such as to be traversed by water and air when the pump is active.