US4318607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnet for a development system
Assignee: Xerox Corp
•
Filing: 1980-07-14
•
Granted: 1982-03-09
•
Expires: 2000-07-14
Abstract
Abstract An apparatus which develops a latent image by transporting developer material closely adjacent thereto. The apparatus includes a magnetic member having a magnetic portion formed integrally with a support portion.
Inventors
- 👤 Robert D. Bonham
- 👤 Joseph Fantuzzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:51
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/09; G03G15/0921
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
52 words
An apparatus for developing a latent image with developer material, including: means for transporting the developer material closely adjacent to the latent image; and a magnetic member, disposed interiorly of said transporting means, for attracting the developer material thereto, said magnetic member having a magnetic portion molded integrally with a support portion.
Claim 2
Independent Claim
52 words
An apparatus for developing a latent image with developer material, including: means for transporting the developer material closely adjacent to the latent image; and a magnetic member, disposed interiorly of said transporting means, for attracting the developer material thereto, said magnetic member having a magnetic portion molded integrally with a support portion.
Claim 3
Dependent Claim
21 words
An apparatus according to claim 1, further including a frame arranged to receive said support portion of said magnetic member therein.
Claim 4
Independent Claim
100 words
An apparatus for developing a latent image with developer material, including: means for transporting the developer material closely adjacent to the latent image; a magnetic member operatively associated with said transporting means for attracting the developer material thereto, said magnetic member having a magnetic portion formed integrally with a support portion, said magnetic portion of said magnetic member being an elongated cylindrical member, and said support portion of said magnetic member being a shaft molded integrally with at least one end region of said cylindrical member; and a frame arranged to receive said support portion of said magnetic member therein.
Claim 5
Independent Claim
100 words
An apparatus for developing a latent image with developer material, including: means for transporting the developer material closely adjacent to the latent image; a magnetic member operatively associated with said transporting means for attracting the developer material thereto, said magnetic member having a magnetic portion formed integrally with a support portion, said magnetic portion of said magnetic member being an elongated cylindrical member, and said support portion of said magnetic member being a shaft molded integrally with at least one end region of said cylindrical member; and a frame arranged to receive said support portion of said magnetic member therein.
Claim 6
Dependent Claim
12 words
An apparatus according to claim 3, wherein said cylindrical member is hollow.
Claim 7
Dependent Claim
21 words
An apparatus according to claim 4, further including a bearing support positioned at the other end region of said cylindrical member.
Claim 8
Dependent Claim
17 words
An apparatus according to claim 5, wherein said bearing support is molded integrally with said cylindrical member.
Claim 9
Dependent Claim
13 words
An apparatus according to claim 6, wherein said bearing support is a ring.
Claim 10
Dependent Claim
11 words
An apparatus according to claim 7, wherein said shaft is cylindrical.
Claim 11
Dependent Claim
21 words
An apparatus according to claim 8, wherein the diameter of said cylindrical member is greater than the diameter of said shaft.
Claim 12
Dependent Claim
83 words
An electrophotographic printing machine of the type in which an electrostatic latent image recorded on the photoconductive member is developed with a developer material, wherein the improvement includes: means for transporting the developer material closely adjacent to the electrostatic latent image recorded on the photoconductive member; and a magnetic member, disposed interiorly of said transporting means, to attract the developer material thereto, said magnetic member having a magnetic portion molded integrally with a support portion arranged to be mounted in the printing machine.
Claim 13
Dependent Claim
83 words
An electrophotographic printing machine of the type in which an electrostatic latent image recorded on the photoconductive member is developed with a developer material, wherein the improvement includes: means for transporting the developer material closely adjacent to the electrostatic latent image recorded on the photoconductive member; and a magnetic member, disposed interiorly of said transporting means, to attract the developer material thereto, said magnetic member having a magnetic portion molded integrally with a support portion arranged to be mounted in the printing machine.
Claim 14
Dependent Claim
118 words
An electrophotographic printing machine of the type in which an electrostatic latent image recorded on a photoconductive member is developed with a developer material, wherein the improvement includes: means for transporting the developer material closely adjacent to the electrostatic latent image recorded on the photoconductive member; and a magnetic member operatively associated with said transporting means to attract the developer material thereto, said magnetic member having a magnetic portion formed integrally with a support portion arranged to be mounted in the printing machine, said magnetic portion of said magnetic member being an elongated cylindrical member, and said support portion of said magnetic member being a shaft molded integrally with at least one end region of said cylindrical member.
Claim 15
Dependent Claim
118 words
An electrophotographic printing machine of the type in which an electrostatic latent image recorded on a photoconductive member is developed with a developer material, wherein the improvement includes: means for transporting the developer material closely adjacent to the electrostatic latent image recorded on the photoconductive member; and a magnetic member operatively associated with said transporting means to attract the developer material thereto, said magnetic member having a magnetic portion formed integrally with a support portion arranged to be mounted in the printing machine, said magnetic portion of said magnetic member being an elongated cylindrical member, and said support portion of said magnetic member being a shaft molded integrally with at least one end region of said cylindrical member.
Claim 16
Dependent Claim
13 words
A printing machine according to claim 11, wherein said cylindrical member is hollow.
Claim 17
Dependent Claim
22 words
A printing machine according to claim 12, further including a bearing support positioned at the other end region of said cylindrical member.
Claim 18
Dependent Claim
18 words
A printing machine according to claim 13, wherein said bearing support is molded integrally with said cylindrical member.
Claim 19
Dependent Claim
14 words
A printing machine according to claim 14, wherein said bearing support is a ring.
Claim 20
Dependent Claim
12 words
A printing machine according to claim 15, wherein said shaft is cylindrical.
Claim 21
Dependent Claim
22 words
A printing machine according to claim 16, wherein the diameter of said cylindrical member is greater than the diameter of said shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-08 | 1985-09-07 | 1986-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-08 | 1989-09-07 | 1990-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-08 | 1993-09-07 | 1994-03-09 | $7700.00 | Window Closed / Lapsed |