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US4093369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning system
Assignee: Xerox Corp
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Filing: 1977-03-18
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Granted: 1978-06-06
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Expires: 1997-03-18
Abstract
Abstract An apparatus in which particles are removed from a surface and collected. The particles are dislodged from the surface and move through a conduit to a storage housing. As the particles pass through the conduit, the particles are maintained spaced from the interior surface of the walls thereof.
Inventors
- 👤 Robert E. Hewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:04
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/10; G03G21/105
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
90 words
An apparatus for removing and collecting particles from a surface, including: means for dislodging the particles from the surface; means for storing the dislodged particles; a particle tight conduit operatively connected to said dislodging means for conducting the dislodged particles from said dislodging means to said storing means; means for moving the dislodged particles from said dislodging means through said conduit to said storing means; and means for maintaining the dislodged particles spaced from the interior surface of the walls of said conduit the movement of the dislodged particles therethrough.
Claim 2
Independent Claim
90 words
An apparatus for removing and collecting particles from a surface, including: means for dislodging the particles from the surface; means for storing the dislodged particles; a particle tight conduit operatively connected to said dislodging means for conducting the dislodged particles from said dislodging means to said storing means; means for moving the dislodged particles from said dislodging means through said conduit to said storing means; and means for maintaining the dislodged particles spaced from the interior surface of the walls of said conduit the movement of the dislodged particles therethrough.
Claim 3
Dependent Claim
35 words
An apparatus as recited in claim 1, wherein said moving means includes a blower for generating an air flow adapted to transport the particles from said dislodging means through said conduit to said storing means.
Claim 4
Dependent Claim
49 words
An apparatus as recited in claim 2, wherein said maintaining means includes a first air pervious member extending the length of said conduit at the lowermost portion thereof permitting air to flow therethrough into said conduit preventing the particles from settling on the interior surface of the walls thereof.
Claim 5
Dependent Claim
77 words
An apparatus as recited in claim 3, wherein said storing means includes: a first housing defining a chamber having an inlet port coupled to said conduit and an outlet port coupled to said blower; and a second air pervious member disposed in the chamber of said housing between the inlet portion and outlet port to define two compartments with one compartment being coupled to the outlet port and the other compartment being coupled to the inlet port.
Claim 6
Dependent Claim
44 words
An apparatus as recited in claim 4, wherein said dislodging means includes: a second housing defining a chamber coupled to said conduit; and a brush mounted rotatably in the chamber of said second housing and engaging the surface having the particles being dislodged thereon.
Claim 7
Dependent Claim
119 words
An electrophotographic printing machine of the type having residual toner particles adhering to a photoconductive member after transferring the toner power image to a sheet of support material, wherein the improvement includes: means for dislodging the toner particles from the photoconductive member; means for storing the dislodged toner particles; a toner tight conduit operatively connected to said dislodging means for conducting the dislodged toner particles from said dislodging means to said storing means; means for moving the dislodged toner particles from said dislodging means through said conduit to said storing means; and means for maintaining the dislodged toner particles spaced from the interior surface of the walls of said conduit during the movement of the dislodged toner particles therethrough.
Claim 8
Dependent Claim
119 words
An electrophotographic printing machine of the type having residual toner particles adhering to a photoconductive member after transferring the toner power image to a sheet of support material, wherein the improvement includes: means for dislodging the toner particles from the photoconductive member; means for storing the dislodged toner particles; a toner tight conduit operatively connected to said dislodging means for conducting the dislodged toner particles from said dislodging means to said storing means; means for moving the dislodged toner particles from said dislodging means through said conduit to said storing means; and means for maintaining the dislodged toner particles spaced from the interior surface of the walls of said conduit during the movement of the dislodged toner particles therethrough.
Claim 9
Dependent Claim
37 words
A printing machine as recited in claim 6, wherein said moving means includes a blower for generating an air flow adapted to transport the toner particles from said dislodging means through said conduit to said storing means.
Claim 10
Dependent Claim
49 words
A printing machine as recited in claim 7, wherein said maintaining means includes a first air pervious member extending along the length of said conduit at the lowermost portion thereof permitting air to flow therethrough into said conduit preventing the toner particles from settling on the interior surface thereof.
Claim 11
Dependent Claim
78 words
A printing machine as recited in claim 8, wherein said storing means includes: a first housing defining a chamber having an inlet port coupled to said conduit and an outlet port coupled to said blower; and a second air previous member disposed in the chamber of said housing between the inlet port and outlet port to define two compartments with one compartment being coupled to the outlet port and the other compartment being coupled to the inlet port.
Claim 12
Dependent Claim
47 words
A printing machine as recited in claim 9, wherein said dislodging means includes: a second housing defining a chamber coupled to said conduit; and a brush mounted rotatably in the chamber of said second housing and engaging the photoconductive member having the toner particles being dislodged thereon.
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) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |