05083504 is referenced by 23 patents and cites 15 patents.

A drink extraction apparatus utilizing a pump for pumping hot water from a hot-water tank and, through a pumping tube, pouring such hot water onto drink material in a drink material container, and for, upon completion of the extraction, sending into such drink material container pressurized air through such pumping tube to cut dripping from a filter by expelling hot water in the drink material residue, the air being pumped directly from the air intake or pumped into an air tank to pressurize the air.

Title
Drink extraction apparatus
Application Number
7/498521
Publication Number
5083504
Application Date
March 26, 1990
Publication Date
January 28, 1992
Inventor
Kiyoshi Sakai
Saitama
JP
Satoshi Wakui
Konosu
JP
Koji Koga
Oashi
JP
Agent
Armstrong Nikaido Marmelstein Kubovcik & Murray
Assignee
Sanyo Electric
JP
IPC
A23F 5/26
A47J 31/32
View Original Source