US4442789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particle moving and dispensing system
Assignee: Xerox Corp
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Filing: 1982-09-16
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Granted: 1984-04-17
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Expires: 2002-09-16
Abstract
Abstract An apparatus in which particles are discharged into the chamber of a housing storing a supply of developer material therein. The apparatus includes an auger having a multiplicity of spirally wound flexible fibers. As the flexible fibers rotate, they move the particles from a supply thereof to at least one exit port for discharge therefrom into the developer material.
Inventors
- 👤 Robert G. Pirwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:41
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0822; G03G15/0877
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
218 words
An apparatus for developing an electrostatic latent image recorded on a photoconductive member used in an electrophotographic printing machine, including: a housing defining a chamber for storing a supply of developer material comprising at least carrier granules and toner particles therein; means, defining an open ended chamber, for storing a supply of toner particles therein; a tubular member having an entrance port in communication with the open end of the chamber in said storing means to receive toner particles therefrom and a plurality of substantially equally spaced exit ports for dispensing toner particles therefrom into the chamber of the housing storing the developer material therein; means for moving the toner particles received in said tubular member from the entrance port to the exit ports therein for dispensing the toner particles therefrom into the chamber of the housing storing the developer material therein, said moving means comprising a support mounted rotatably in said tubular member, and a multiplicity of flexible fibers mounted on said support in a spiral configuration and extending outwardly therefrom with the free end portions thereof being closely adjacent to the interior surface of said tubular member; and means for periodically deflecting and releasing the free end portions of said flexible fibers to prevent caking and clogging of the toner particles moving in said tubular member.
Claim 2
Independent Claim
218 words
An apparatus for developing an electrostatic latent image recorded on a photoconductive member used in an electrophotographic printing machine, including: a housing defining a chamber for storing a supply of developer material comprising at least carrier granules and toner particles therein; means, defining an open ended chamber, for storing a supply of toner particles therein; a tubular member having an entrance port in communication with the open end of the chamber in said storing means to receive toner particles therefrom and a plurality of substantially equally spaced exit ports for dispensing toner particles therefrom into the chamber of the housing storing the developer material therein; means for moving the toner particles received in said tubular member from the entrance port to the exit ports therein for dispensing the toner particles therefrom into the chamber of the housing storing the developer material therein, said moving means comprising a support mounted rotatably in said tubular member, and a multiplicity of flexible fibers mounted on said support in a spiral configuration and extending outwardly therefrom with the free end portions thereof being closely adjacent to the interior surface of said tubular member; and means for periodically deflecting and releasing the free end portions of said flexible fibers to prevent caking and clogging of the toner particles moving in said tubular member.
Claim 3
Dependent Claim
49 words
An apparatus according to claim 1, wherein said deflecting and releasing means includes an elongated blade integral with and extending inwardly from the interior surface of said enclosure along the length of the elongated chamber with the free end thereof engaging the free end portions of said flexible fibers.
Claim 4
Dependent Claim
29 words
An apparatus according to claim 2, wherein said support includes a plurality of wires twisted around one another and having said flexible fibers passing therebetween to be secured thereon.
Claim 5
Dependent Claim
21 words
An apparatus according to claim 3, wherein said flexible fibers are wound about said plurality of wires in a helical path.
References Cited (Backward Citations)
US3363806A
Cited
EP0051550A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-17 | 1987-10-17 | 1988-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-17 | 1991-10-17 | 1992-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-17 | 1995-10-17 | 1996-04-17 | $7700.00 | Window Closed / Lapsed |