U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Dispenser for dispensing viscous fluids

Patent 6047862 Issued on April 11, 2000. Estimated Expiration Date: Icon_subject January 28, 2018. 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.

Patent References

Trigger-actuated atomizer
Patent #: 4434917
Issued on: 03/06/1984
Inventor: Saito ,   et al.

Dispenser for striped viscous products
Patent #: 4715518
Issued on: 12/29/1987
Inventor: Moore

Dispenser for metering proportionate increments of polymerizable materials
Patent #: 4747517
Issued on: 05/31/1988
Inventor: Hart

Injection head for filling dispenser that meters proportionate increments of dissimilar materials
Patent #: 4789012
Issued on: 12/06/1988
Inventor: Hart

Pump chamber dispenser
Patent #: 4804115
Issued on: 02/14/1989
Inventor: Ball

Stripping dispenser package for viscous products
Patent #: 4907726
Issued on: 03/13/1990
Inventor: Harris

Elastomeric valve and piston structure for product dispenser
Patent #: 4936493
Issued on: 06/26/1990
Inventor: Foster, et al.

Dispenser for the metered delivery of pasty products
Patent #: 4991744
Issued on: 02/12/1991
Inventor: Von Schuckmann

Pump dispenser package
Patent #: 5016783
Issued on: 05/21/1991
Inventor: Hayes, et al.

Dispenser of paste products with refill-type container
Patent #: 5104009
Issued on: 04/14/1992
Inventor: Battegazzore

More ...

Inventor

Assignee

Application

No. 945371 filed on 01/28/1998

US Classes:

222/145.3, Dispensed product retains identity of individual material (e.g., striped toothpaste)222/256, Follower combined with casing enclosed impeller222/327, Part of cartridge or removable container222/380Valve outlet

Examiners

Primary: Shaver, Kevin
Assistant: Quinalty, Keats

Attorney, Agent or Firm

International Classes

B67D 005/60
G01F 011/00

Foreign Application Priority Data

1995-04-12 GB

Abstract

A pump dispenser suitable for striped toothpaste, comprising a pump head [1] and a replaceable reservoir [2] for the toothpaste, in which the toothpaste is packed in radially disposed segments, and the reservoir is locked against rotation relative to the pump head.

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