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

Apparatus for dispensing toner particles and sealing the storage chamber thereof

Patent 4492321 Issued on January 8, 1985. Estimated Expiration Date: Icon_subject November 22, 2002. 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

1191116

3149760

3200430

3881446

3894510

3898956

Toner-replenishing apparatus for use in dry process electrostatic copier
Patent #: 4024993
Issued on: 05/24/1977
Inventor: Hanada

Tuner supply for electrostatic copiers Patent #: 4237943
Issued on: 12/09/1980
Inventor: Ermel ,   et al.

Inventor

Assignee

Application

No. 06/443402 filed on 11/22/1982

US Classes:

222/410, Rotary222/548Rotary, axially

Examiners

Primary: Tollberg, Stanley H.
Assistant: Huppert, Michael S.

Attorney, Agent or Firm

International Classes

G01F 11/10 (20060101)
G01F 11/24 (20060101)

Abstract

An apparatus in which particles are discharged from the open end of a storage chamber. In the operative mode, a brush mounted movably adjacent the open end of the chamber, is actuated. The brush has at least one row of bristles for dispensing particles from the open end of the storage chamber. In the inoperative mode, the brush is positioned such that the row of bristles seals the open end of the chamber preventing the discharge of particles therefrom.

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