Tea brewing method and apparatus

• US 6,564,697 B2
• Filed: 11/28/2001
• Issued: 05/20/2003
• Est. Priority Date: 11/30/2000
• Status: Expired due to Fees

• Current Assignee: Lipton, Inc.
• Original Assignee: Lipton, Inc.
• Inventors: Pennington, Miles, Maxwell, Adrian John, Quinn, Anthony Edward, Nandra, Charanjit Singh
• Primary Examiner(s): ALEXANDER, REGINALD
• Application Number:
  US09/996,101
• Publication Number:
  US 20020104442A1
• Time in Patent Office: 538 Days
• Field of Search: 992/87, 992/99, 993/05, 993/04, 993/07, 993/06, 992/97
• US Class Current: 99/287
• CPC Class Codes: A47J 31/0605 with a valve at the filter-outlet; Anti-drip devices A47J31/0615, A47J31/0621 take precedence
• CPC Class Codes: A47J 31/18 Apparatus in which ground coffee or tea-leaves are immersed in the hot liquid in the beverage container

Abstract

A machine for brewing tea. The machine has a housing, a vessel for receiving leaf tea and a hot water supply that supplies hot water to that vessel. The leaf tea is physically agitated within the vessel to maximise the rate and extent of infusion and the resulting infusion is siphoned out of the vessel before it is dispensed.

Claims

1. A tea brewing machine comprising a housing, a vessel for receiving leaf tea, hot water supply means for supplying hot water to the vessel, means for physically agitating the leaf tea within the vessel to maximise the rate and extent of infusion, and a siphon arrangement for siphoning the infusion out of the vessel before it is dispensed wherein the means for physically agitating the leaf tea within the vessel comprises a stirring device, or jets of water supplied by the hot water supply means which are pumped or pulsed through channels in a hub member located at an upper part of the vessel.

2. A machine according to claim 1 wherein the vessel includes means that supply jets of air or water into the vessel to physically agitate the leaf tea within the vessel.

3. A machine according to claim 1 wherein the siphoning arrangement comprises a siphon unit that projects from the base of the vessel, said siphon unit having at least one opening located adjacent the base of the vessel that leads into passageway that extends up the siphon unit and into a siphon tube that extends down through the siphon unit and terminates at a nozzle that projects below the base of the vessel.

4. A machine according to claim 3 wherein filter means is provided over the opening or openings of the siphon unit.

5. A machine according to claim 1 wherein at least a portion of the siphon unit is rotatably mounted on the base of the vessel, said rotatable portion being provided with fins or a propeller that agitates the leaf tea while it is infusing.

6. A machine according to claim 1 wherein water is supplied into the vessel via a channel that passes through the siphon unit.