US4926217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particle transport
Assignee: Xerox Corp
•
Filing: 1986-08-11
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Granted: 1990-05-15
•
Expires: 2006-08-11
Abstract
Abstract An apparatus in which particles are moved from one end of a duct to the other end thereof. The particles in the duct are fluidized. A pressure differential is generated which moves the fluidized particles in the duct from one end of the duct to the other end thereof.
Inventors
- 👤 Jan Bares
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:49
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0822
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
An apparatus arranged for use in an electrophotographic printing machine for moving marking particles from a storage container located at one end of a tube to a developer unit located at the other end thereof, including: an elongated member disposed interiorly of said tube, said elongated member includes a rod having a multiplicity of fibers extending outwardly therefrom; means for moving said elongated member to fluidize the particles in the tube without inducing any substantial linear movement of the particles along the tube; and means for generating a pressure differential to move the fluidized particles in the tube from the storage container located at one end of the tube to the developer unit located at the other end of the tube.
Claim 2
Independent Claim
121 words
An apparatus arranged for use in an electrophotographic printing machine for moving marking particles from a storage container located at one end of a tube to a developer unit located at the other end thereof, including: an elongated member disposed interiorly of said tube, said elongated member includes a rod having a multiplicity of fibers extending outwardly therefrom; means for moving said elongated member to fluidize the particles in the tube without inducing any substantial linear movement of the particles along the tube; and means for generating a pressure differential to move the fluidized particles in the tube from the storage container located at one end of the tube to the developer unit located at the other end of the tube.
Claim 3
Independent Claim
130 words
An apparatus arranged for use in an electrophotographic printing machine for moving marking particles from a storage container located at one end of a tube to a developer unit located at the other end thereof, including: an elongated member disposed interiorly of said tube, said elongated member includes a hollow rod having a plurality of apertures therein with said apertures being arranged in a plurality of rows, means for moving said elongated member to fluidize the particles in the tube without inducing any substantial linear movement of the particles along the tube; and means for generating a pressure differential to move the fluidized particles in the tube from the storage container located at one end of the tube to the developer unit located at the other end of the tube.
Claim 4
Independent Claim
130 words
An apparatus arranged for use in an electrophotographic printing machine for moving marking particles from a storage container located at one end of a tube to a developer unit located at the other end thereof, including: an elongated member disposed interiorly of said tube, said elongated member includes a hollow rod having a plurality of apertures therein with said apertures being arranged in a plurality of rows, means for moving said elongated member to fluidize the particles in the tube without inducing any substantial linear movement of the particles along the tube; and means for generating a pressure differential to move the fluidized particles in the tube from the storage container located at one end of the tube to the developer unit located at the other end of the tube.
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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) | 1993-05-14 | 1993-11-13 | 1994-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-14 | 1997-11-13 | 1998-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-14 | 2001-11-13 | 2002-05-15 | $7700.00 | Window Closed / Lapsed |