Patent US4811867A successfully refreshed from Google Patents.
US4811867A
Expired / Lapsed
US
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Particle anti-bridging apparatus
Assignee: Xerox Corp
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Filing: 1985-03-13
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Granted: 1989-03-14
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Expires: 2005-03-13
Abstract
Abstract An apparatus in which particles are dispensed from an open ended chamber of a container into a transport adapted to move the particles therefrom. The apparatus prevents the bridging and caking of particles in the chamber. A member, positioned in the chamber of the container in the region of the open end thereof, is in engagement with the transport. The member is resiliently coupled to the container and agitated as the transport moves the particles. This causes the springs resiliently coupling the member to the container to vibrate. As the springs vibrate, bridging and caking of the particles is prevented and the particles are dispensed from the open end of the chamber in the container.
Inventors
- 👤 William J. Deyle, Jr.
- 👤 John M. Wysocky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:19
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/66; G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0822; G03G21/00; G03G21/10; G03G21/12; Y; Y10; Y10S; Y10S222/00; Y10S222/01
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
152 words
An apparatus for preventing the bridging and caking of particles in an open ended chamber of a container dispensing the particles therefrom into a transport adapted to move the particles, including: a member; a first spring extending from one side of said member to a first wall of the container in the open end of the chamber thereof; and a second spring extending from the other side of said member to a second wall of the container in the open end of the chamber thereof, said first spring and said second spring freely suspending said member, in the chamber of the container in the region of the open end thereof, in engagement with the transport with said member being agitated as the transport moves the particles causing said first spring and said second spring to vibrate preventing bridging and caking of the particles being dispensed from the open end of the container.
Claim 2
Independent Claim
152 words
An apparatus for preventing the bridging and caking of particles in an open ended chamber of a container dispensing the particles therefrom into a transport adapted to move the particles, including: a member; a first spring extending from one side of said member to a first wall of the container in the open end of the chamber thereof; and a second spring extending from the other side of said member to a second wall of the container in the open end of the chamber thereof, said first spring and said second spring freely suspending said member, in the chamber of the container in the region of the open end thereof, in engagement with the transport with said member being agitated as the transport moves the particles causing said first spring and said second spring to vibrate preventing bridging and caking of the particles being dispensed from the open end of the container.
Claim 3
Dependent Claim
17 words
An apparatus according to claim 1, wherein said first spring is an open coil low rate spring.
Claim 4
Dependent Claim
17 words
An apparatus according to claim 2, wherein said second spring is an open coil low rate spring.
Claim 5
Dependent Claim
14 words
An apparatus according to claim 1, wherein the transport is a spiral spring member.
Claim 6
Dependent Claim
47 words
An apparatus according to claim 4, wherein said member includes a spherical portion disposed in the open end of the chamber of the container with a protrusion extending outwardly therefrom through the open end of the chamber of the container into engagement with said spiral spring member.
Claim 7
Dependent Claim
22 words
An apparatus according to claim 5, wherein said spherical portion and said protrusion of said member are molded integrally with one another.
Claim 8
Dependent Claim
205 words
An electrophotographic printing machine of the type having a cleaning station for removing residual toner particles from a photoconductive member, wherein the improvement includes: a container, in communication with the cleaning station, having an open ended chamber for receiving toner particles removed from the photoconductive member; means, positioned to receive the toner particles discharged from the open end of the chamber of said container, for transporting the toner particles to a location remote from the cleaning station. a member; a first spring extending from one side of said member to a first wall of said container in the open end of the chamber thereof; and a second spring extending from the other side of said member to a second wall of said container in the open end of the chamber thereof, said first spring and said second spring freely suspending said member, in the chamber of said container in the region of the open end thereof, in engagement with said transporting means, with said member being agitated as said transporting means moves the toner particles causing said first spring and said second spring to vibrate preventing bridging and caking of the toner particles being discharged from the open end of the chamber of said container.
Claim 9
Dependent Claim
205 words
An electrophotographic printing machine of the type having a cleaning station for removing residual toner particles from a photoconductive member, wherein the improvement includes: a container, in communication with the cleaning station, having an open ended chamber for receiving toner particles removed from the photoconductive member; means, positioned to receive the toner particles discharged from the open end of the chamber of said container, for transporting the toner particles to a location remote from the cleaning station. a member; a first spring extending from one side of said member to a first wall of said container in the open end of the chamber thereof; and a second spring extending from the other side of said member to a second wall of said container in the open end of the chamber thereof, said first spring and said second spring freely suspending said member, in the chamber of said container in the region of the open end thereof, in engagement with said transporting means, with said member being agitated as said transporting means moves the toner particles causing said first spring and said second spring to vibrate preventing bridging and caking of the toner particles being discharged from the open end of the chamber of said container.
Claim 10
Dependent Claim
18 words
A printing machine according to claim 7, wherein said first spring is an open coil low rate spring.
Claim 11
Dependent Claim
18 words
A printing machine according to claim 8, wherein said second spring is an open coil low rate spring.
Claim 12
Dependent Claim
16 words
A printing machine according to claim 7, wherein said transporting means includes a spiral spring member.
Claim 13
Dependent Claim
48 words
A printing machine according to claim 10, wherein said member includes a spherical portion disposed in the open end of the chamber of said container with a protrusion extending outwardly therefrom through the open end of the chamber of said container into engagement with said spiral spring member.
Claim 14
Dependent Claim
23 words
A printing machine according to claim 11, wherein said spherical portion and said protrusion of said member are molded integrally with one another.
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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) | 1992-03-13 | 1992-09-12 | 1993-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-13 | 1996-09-12 | 1997-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-13 | 2000-09-12 | 2001-03-14 | $7700.00 | Window Closed / Lapsed |