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US3793986A Expired / Lapsed US ⏱️ 0.0 years remaining

Toner reclaiming system for electrostatic printing machines

Assignee: Individual
•
Filing: 1971-06-11
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Granted: 1974-02-26
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Expires: 1991-06-11
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Abstract

Abstract A toner powder reclaiming system for use in conjunction with a photoreceptor cleaning device in an electrostatic reproduction machine, the system including a particle separator in the path of movement of air flow containing toner particles and defined by ducts arranged to receive the particles from the cleaning device. After the toner particles have become separated, they are directed to a plurality of receptacles, may be removed from the machine and used to return the toner particles back into the machine for reuse.

Inventors

  • 👤 S Latone

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 19:38
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/10; G03G21/105; Y; Y10; Y10S; Y10S55/00; Y10S55/03

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 236 words
An improved electrostatic reproduction machine having a photoconductive surface upon which is formed an electrostatic latent image, a developing apparatus for applying developing material to said latent image to develop the same, said material including toner particles which are electrostatically attractable to said latent image, and a cleaning mechanism for removing residual toner particles from said surface after development of said latent image, the improvement comprising: an air conveying system having an input and an output end, and blower means positioned between said ends for effecting movement of air throughout said system; said input end being operatively connected to said cleaning mechanism for receiving air and toner particles there-from; separating means positioneD in said system between said input end and said blower means, said separating means having inlet and outlet means for the movement of air therethrough and discharge means for discharging separated toner particles from said system; a toner recovery container having an opening for receiving said separated toner and means for engaging said discharge means in a sealing relationship for receiving said separated toner, said container being positioned in operative communication with said discharge means and arranged to receive said separated toner from said separating means; a toner dispenser for said developing apparatus, said dispenser having a mating element formed to engage said container in a manner which will permit said separated toner to be poured from said container into said dispenser without spillage.
Claim 2
Dependent Claim 236 words
An improved electrostatic reproduction machine having a photoconductive surface upon which is formed an electrostatic latent image, a developing apparatus for applying developing material to said latent image to develop the same, said material including toner particles which are electrostatically attractable to said latent image, and a cleaning mechanism for removing residual toner particles from said surface after development of said latent image, the improvement comprising: an air conveying system having an input and an output end, and blower means positioned between said ends for effecting movement of air throughout said system; said input end being operatively connected to said cleaning mechanism for receiving air and toner particles there-from; separating means positioneD in said system between said input end and said blower means, said separating means having inlet and outlet means for the movement of air therethrough and discharge means for discharging separated toner particles from said system; a toner recovery container having an opening for receiving said separated toner and means for engaging said discharge means in a sealing relationship for receiving said separated toner, said container being positioned in operative communication with said discharge means and arranged to receive said separated toner from said separating means; a toner dispenser for said developing apparatus, said dispenser having a mating element formed to engage said container in a manner which will permit said separated toner to be poured from said container into said dispenser without spillage.
Claim 3
Dependent Claim 50 words
An improved electrostatic reproduction machine according to claim 1, and further including means for supporting said container beneath said separating means, and for moving said container into a first position where it engages said discharge means, and into a second position where said container is disengaged from said discharge means.
Claim 4
Dependent Claim 44 words
An improved electrostatic reproduction machine according to claim 2, wherein said supporting and moving means includes means for biasing said container into one of said positions, and cam means for overcoming said biasing means and moving said container into the other of said positions.

References Cited (Backward Citations)

US821819A Cited
US1689104A Cited
US3410060A Cited
US3318212A Cited
US3483679A Cited
US3535730A Cited
US3543325A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-25 1977-08-27 1978-02-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-25 1981-08-27 1982-02-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-25 1985-08-27 1986-02-26 $7700.00 Window Closed / Lapsed

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