Container with a pump that mixes liquid and air to discharge bubbles

Patent 5813576 Issued on September 29, 1998. Estimated Expiration Date:

July 1, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Foam dispensing pump container Patent #: 5443569
Issued on: 08/22/1995
Inventor: Uehira, et al.

Inventors

Assignee

Yoshino Kogyosho Co., Ltd.

Application

No. 666574 filed on 07/01/1996

US Classes:

222/190, WITH MATERIAL TREATMENT OR CONDITIONING MEANS222/321.9Pump casing within supply container

Examiners

Primary: Huson, Gregory L.

Attorney, Agent or Firm

Oliff & Berridge, PLC

Foreign Patent References

U-60-163249 JP. 10/12/1985
U-61-3243 JP. 01/12/1986
A-63-138960 JP. 06/12/1988
U-5-51758 JP. 07/12/1993
A-6-136411 JP. 05/12/1994
WO 92/08657 WO. 05/12/1992

International Class

B67D 005/58

Foreign Application Priority Data

1994-11-17 JP

Abstract

A pump for discharging bubbles is provided on a neck portion of a container body. The pump for discharging bubbles comprises a cylinder for liquid in which a first piston slides, a cylinder for air in which a second piston slides, a pump head on which a nozzle is provided and which is connected to the first piston and the second piston so as to drive the both pistons, a vapor-liquid mixing chamber in which liquid delivered from the cylinder for liquid and air delivered from the cylinder for air are joined and a bubbling member provided between the nozzle and the vapor-liquid mixing chamber. Liquid within the container body and outside air are pumped up to be joined in the vapor-liquid mixing chamber and the vapor-liquid is bubbled via the bubbling member to be discharged in a foamy state from the nozzle by depressing the pump head.