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US4286544A Expired / Lapsed US ⏱️ 0.0 years remaining

Cross-mixing system

Assignee: Xerox Corp
•
Filing: 1980-04-02
•
Granted: 1981-09-01
•
Expires: 2000-04-02
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Abstract

Abstract An apparatus in which developer material is transported to a latent image so as to be deposited thereon to form a powder image thereof. The apparatus includes a mixer disposed interiorly of the transport, for mixing the developer material.

Inventors

  • 👤 John C. Witte

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 17:38
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/09

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 135 words
An apparatus for developing a latent image with developer material, including: a plurality of elongated magnetic members for attracting developer material thereto; means for movably supporting said magnetic members with adjacent magnetic members being spaced from one another and the longitudinal axes thereof substantially parallel to one another so that said magnetic members form the exterior circumferential surface of a cylindrical configuration defining an interior chamber with developer material passing between adjacent magnetic members to the interior chamber, said supporting means moving said magnetic members to transport developer material to the latent image so as to deposit developer material thereon; and means, mounted on said support means in the interior chamber of the cylindrical configuration defined by said magnetic members to move in unison therewith, for mixing the developer material passing between adjacent magnetic members.
Claim 2
Independent Claim 135 words
An apparatus for developing a latent image with developer material, including: a plurality of elongated magnetic members for attracting developer material thereto; means for movably supporting said magnetic members with adjacent magnetic members being spaced from one another and the longitudinal axes thereof substantially parallel to one another so that said magnetic members form the exterior circumferential surface of a cylindrical configuration defining an interior chamber with developer material passing between adjacent magnetic members to the interior chamber, said supporting means moving said magnetic members to transport developer material to the latent image so as to deposit developer material thereon; and means, mounted on said support means in the interior chamber of the cylindrical configuration defined by said magnetic members to move in unison therewith, for mixing the developer material passing between adjacent magnetic members.
Claim 3
Dependent Claim 22 words
An apparatus according to claim 1, wherein said mixing means includes a plurality of conically shaped members extending in a longitudinal direction.
Claim 4
Dependent Claim 66 words
An apparatus according to claim 2, wherein said plurality of conically shaped members includes one set of spaced apart conically shaped members having the apex of the cone pointing in one direction and another set of spaced apart conically shaped members having the apex of the cone pointing in the other direction opposed from the direction of said one set of spaced apart conically shaped members.
Claim 5
Dependent Claim 22 words
An apparatus according to claim 3, wherein said one set of conically shaped members overlaps said other set of conically shaped members.
Claim 6
Independent Claim 21 words
An apparatus according to claims 2, 3 or 4, wherein each of said conically shaped members is a semi-conically shaped member.
Claim 7
Dependent Claim 18 words
An apparatus according to claim 5, wherein each of said semi-conically shaped members is a partial funnel-shaped member.
Claim 8
Dependent Claim 30 words
An apparatus according to claim 6, wherein each of said plurality of magnetic members includes a magnetic strip with each of said magnetic strips being substantially parallel to one another.
Claim 9
Dependent Claim 68 words
An apparatus according to claim 7, wherein said supporting means includes: a shaft having said funnel-shaped members mounted thereon; at least a pair of spaced apart discs mounted on said shaft with said funnel-shaped members being positioned therebetween; and a plurality of spaced apart bars connecting said pair of discs to one another with each of said plurality of bars arranged to support one of said magnetic strips.
Claim 10
Dependent Claim 18 words
An apparatus according to claim 8, wherein said plurality of bars are substantially equally spaced from one another.
Claim 11
Dependent Claim 35 words
An apparatus according to claim 9, wherein each of said plurality of bars are connected to the outer periphery of said discs to define a cylindrical configuration with said funnel-shaped members being disposed interiorly thereof.
Claim 12
Dependent Claim 27 words
An apparatus according to claim 10, further including means, coupled to said shaft, for rotating said magnetic strips and said funnel-shaped members in unison with one another.
Claim 13
Dependent Claim 152 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: a plurality of elongated magnetic members for attracting developer material thereto; means for movably supporting said magnetic members with adjacent magnetic members being spaced from one another and the longitudinal axes thereof substantially parallel to one another so that said magnetic members form the exterior circumferential surface of a cylindrical configuration defining an interior chamber with developer material passing between adjacent magnetic members to the interior chamber, said supporting means moving said magnetic members to transport developer material to the latent image so as to deposit developer material thereon; and means, mounted on said supporting means in the interior chamber of the cylindrical configuration defined by said magnetic members to move in unison therewith, for mixing the developer material passing between adjacent magnetic members.
Claim 14
Dependent Claim 152 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: a plurality of elongated magnetic members for attracting developer material thereto; means for movably supporting said magnetic members with adjacent magnetic members being spaced from one another and the longitudinal axes thereof substantially parallel to one another so that said magnetic members form the exterior circumferential surface of a cylindrical configuration defining an interior chamber with developer material passing between adjacent magnetic members to the interior chamber, said supporting means moving said magnetic members to transport developer material to the latent image so as to deposit developer material thereon; and means, mounted on said supporting means in the interior chamber of the cylindrical configuration defined by said magnetic members to move in unison therewith, for mixing the developer material passing between adjacent magnetic members.
Claim 15
Dependent Claim 23 words
A printing machine according to claim 12, wherein said mixing means includes a plurality of conically shaped members extending in a longitudinal direction.
Claim 16
Dependent Claim 67 words
A printing machine according to claim 13, wherein said plurality of conically shaped members includes one set of spaced apart conically shaped members having the apex of the cone pointing in one direction and another set of spaced apart conically shaped members having the apex of the cone pointing in the other direction opposed from the direction of said one set of spaced apart conically shaped members.
Claim 17
Dependent Claim 23 words
A printing machine according to claim 14, wherein said one set of conically shaped members overlaps said other set of conically shaped members.
Claim 18
Dependent Claim 22 words
A printing machine according to claims 13, 14 or 15, wherein each of said conically shaped members is a semi-conically shaped member.
Claim 19
Dependent Claim 20 words
A printing machine according to claim 16, wherein each of said semi-conically shaped members is a partial funnel shaped member.
Claim 20
Dependent Claim 31 words
A printing machine according to claim 17, wherein each of said plurality of magnetic members includes a magnetic strip with each of said magnetic strips being substantially parallel to one another.
Claim 21
Dependent Claim 70 words
A printing machine according to claim 18, wherein said supporting means includes: a shaft having said funnel-shaped members mounted thereon; at least a pair of spaced apart discs mounted on said shaft with said funnel-shaped members being positioned therebetween; and a plurality of spaced apart bars connecting said pair of discs to one another with each of said plurality of bars being arranged to support one of said magnetic strips.
Claim 22
Dependent Claim 19 words
A printing machine according to claim 19, wherein said plurality of bars are substantially equally spaced from one another.
Claim 23
Dependent Claim 38 words
A printing machine according to claim 20, wherein each of said plurality of bars are connected to the outer periphery of said pair of discs to define a cylindrical configuration with said funnel-shaped members being disposed interiorly thereof.
Claim 24
Dependent Claim 28 words
A printing machine according to claim 21, further including means, coupled to said shaft, for rotating said magnetic strips and said funnel-shaped members in unison with one another.

References Cited (Backward Citations)

US3037478A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-08-31 1985-03-02 1985-09-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-08-31 1989-03-02 1989-09-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-08-31 1993-03-02 1993-09-01 $7700.00 Window Closed / Lapsed

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