US 11,751,717 B2
Apparatus and method for frothing milk
Robert Grassia, Summer Hill (AU); Nicholas McColl, Randwick (AU); and Daniel Robert Corkin, Panania (AU)
Filed by BREVILLE PTY LIMITED, Alexandria (AU)
Filed on Jan. 9, 2020, as Appl. No. 16/739,043.
Application 16/739,043 is a continuation of application No. 15/025,890, abandoned, previously published as PCT/AU2014/000947, filed on Sep. 30, 2014.
Claims priority of application No. 2013903770 (AU), filed on Sep. 30, 2013; application No. 2014900665 (AU), filed on Feb. 28, 2014; and application No. 2014903059 (AU), filed on Aug. 7, 2014.
Prior Publication US 2020/0138234 A1, May 7, 2020
Int. Cl. A47J 31/44 (2006.01)
CPC A47J 31/4489 (2013.01) 16 Claims
OG exemplary drawing
 
1. A method of performing a frothing cycle for milk in a frothing apparatus container by injecting steam mixed with air provided by an air pump into the milk in the container, the method comprising the steps of:
1a) disabling the air pump;
1b) determining a back pressure of a wand having a distal end that is submersible in milk in the container, the back pressure being measured in an air ingress flow path from the air pump prior to mixing with steam;
1c) determining a pressure set point, dependent upon the determined back pressure and a desired pressure profile, to be established by the air pump; and
1d) enabling the air pump at a pump power dependent upon the determined pressure set point.