Patents Represented by Attorney C. A. Green
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Patent number: 4286544Abstract: 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.Type: GrantFiled: April 2, 1980Date of Patent: September 1, 1981Assignee: Xerox CorporationInventor: John C. Witte
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Patent number: 4273069Abstract: An apparatus in which a latent image is developed with particles having low conductivity. The particles are attracted to a member vibrating relative to the latent image. This increases the bulk conductivity of the particles being deposited on the latent image so as to improve development thereof.Type: GrantFiled: June 21, 1979Date of Patent: June 16, 1981Assignee: Xerox CorporationInventors: Raymond W. Huggins, Paul W. Burnham, Arthur L. Torrey
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Patent number: 4267797Abstract: An apparatus which develops a latent image by advancing a conductive developer composition comprising marking particles into contact therewith. The apparatus interacts with the developer composition causing the developer composition to have higher and lower regions of conductivity. In the regions of higher conductivity, development of the solid areas within the latent image is optimized. Development of lines within the latent image is optimized in the regions of lower conductivity.Type: GrantFiled: April 27, 1979Date of Patent: May 19, 1981Assignee: Xerox CorporationInventor: Raymond W. Huggins
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Patent number: 4240740Abstract: An apparatus which develops a latent image with magnetic particles. The apparatus includes a member having a multiplicity of magnetic fibers extending outwardly therefrom. At least a portion of the fibers have the free end regions thereof contacting the latent image. A magnet field attracts the particles to the member. Relative movement between the member and magnet field move the particles into contact with the latent image to form a substantially uniform particle image.Type: GrantFiled: June 11, 1979Date of Patent: December 23, 1980Assignee: Xerox CorporationInventor: Eugene F. Young
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Patent number: 4239017Abstract: An apparatus in which a latent image is developed with magnetic particles. The apparatus includes a magnetic member having a multiplicity of conductive fibers extending outwardly therefrom. Movement of the magnetic member advances the particles into contact with the latent image. As the particles are deposited on the latent image, the free end regions of at least a portion of the fibers contact the particles to aid in forming a substantially uniform particle image.Type: GrantFiled: July 16, 1979Date of Patent: December 16, 1980Assignee: Xerox CorporationInventor: William M. Schwarz, Jr.
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Patent number: 4230406Abstract: An apparatus which cleans particles from a photoconductive member arranged to advance along a predetermined path. When the photoconductive member is stationary, the particle cleaner and photoconductive member are spaced from one another. The photoconductive member is deflected into engagement with the particle cleaner in response to the photoconductive member advancing along the pre-determined path. In this manner, the particle cleaner removes residual particles from the photoconductive member during the movement thereof along the pre-determined path.Type: GrantFiled: March 26, 1979Date of Patent: October 28, 1980Assignee: Xerox CorporationInventor: Stanley D. Klett
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Patent number: 4227795Abstract: An optical system in which a movable photosensitive member is exposed to a light image of an original document. The optical system includes a light source which illuminates a screen having at least two adjacent spaced rows of opaque dots. Movement of the photosensitive member controls activation of the light source. The light source is activated periodically and responds to the photosensitive member moving a distance corresponding to the distance between adjacent rows of opaque dots on the screen.Type: GrantFiled: January 12, 1977Date of Patent: October 14, 1980Assignee: Xerox CorporationInventors: Richard M. Bobbe, John A. Durbin, Richard F. Lehman, Frederick A. Seedhouse
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Patent number: 4221480Abstract: An apparatus in which lateral movement of a moving belt is controlled so that the belt moves in a pre-determined path. The apparatus includes at least one moving member having a plurality of spaced, flexible discs extending outwardly from the exterior surface thereof. The portion or segment of the disc contacting the region of the belt passing thereover provides support therefor. Preventing the belt from deviating laterally from the pre-determined path deflects the portion or segments of the discs providing support for the belt. The deflected portion of the disc returns to the undeflected condition when not supporting the belt. In this manner, the maximum force applied to the belt never exceeds the minimum force required to buckle the belt.Type: GrantFiled: February 28, 1979Date of Patent: September 9, 1980Assignee: Xerox CorporationInventor: Charles W. Spehrley, Jr.
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Patent number: 4220325Abstract: An apparatus in which a sheet advancing along a pre-determined path is collected in one of a plurality of movable sheet receiving stations. One of the receiving stations is aligned with the sheet path. A guide moves from an inoperative position spaced from the receiving stations to an operative position coupling the aligned sheet receiving station with the sheet path. This enables the sheet to advance into the receiving station.Type: GrantFiled: January 15, 1979Date of Patent: September 2, 1980Assignee: Xerox CorporationInventors: Donald W. Tates, Gary A. Nobles
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Patent number: 4215932Abstract: An apparatus and method of use in which a first photoconductive belt arranged to move about an endless operative path in an electrophotographic printing machine is replaced by a second photoconductive belt. The leading marginal region of the second photoconductive belt is secured to the first photoconductive belt. As the first photoconductive belt moves about the operative path, it positions the second photoconductive belt thereabout. After the second photoconductive belt is positioned about the operative path, the first photoconductive belt is removed therefrom and separated from the second photoconductive belt. The leading marginal region of the second photoconductive belt is then secured to the trailing marginal region thereof.Type: GrantFiled: June 29, 1979Date of Patent: August 5, 1980Assignee: Xerox CorporationInventors: Vittorio Castelli, Ralph A. Hamaker, Stephen T. Chai
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Patent number: 4214746Abstract: A sorting apparatus in which a sheet loading station is arranged to advance sheets into individual sheet receiving members of one of at least two groups of sheet receiving members. The other group of sheet receiving members is positioned at one of two sheet unloading stations. After loading and unloading sheets from the respective groups of sheet receiving members, the loaded group of sheet receiving members moves to the other sheet unloading station as the unloaded group of sheet receiving members returns to the sheet loading station.Type: GrantFiled: January 15, 1979Date of Patent: July 29, 1980Assignee: Xerox CorporationInventors: Thomas P. Redding, Glenn M. Herbert, Alistair J. Caldwell
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Patent number: 4206994Abstract: An apparatus in which an endless belt is supported for movement in a recirculating path. A pressurized fluid flows between a support post and the belt to reduce friction therebetween. The post is urged resiliently toward the belt to maintain the belt under substantially uniform tension.Type: GrantFiled: September 20, 1978Date of Patent: June 10, 1980Assignee: Xerox CorporationInventors: Morton Silverberg, Ralph A. Hamaker
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Patent number: 4198155Abstract: A belt assembly in which a sub-belt has a photoconductive belt secured releasably thereto. The sub-belt and photoconductive belt move in unison with one another about a defined path.Type: GrantFiled: October 30, 1978Date of Patent: April 15, 1980Assignee: Xerox CorporationInventor: Morton Silverberg
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Patent number: 4197002Abstract: An apparatus in which a belt is supported for movement in a pre-determined path. The lateral movement of the belt relative to the pre-determined path is controlled. A pneumatic system provides pressurized fluid to at least partially support the belt and control the lateral movement thereof.Type: GrantFiled: November 15, 1978Date of Patent: April 8, 1980Assignee: Xerox CorporationInventors: Ralph A. Hamaker, Morton Silverberg
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Patent number: 4194666Abstract: An apparatus in which articles are stapled to one another. A staple is driven through the article so that a portion thereof protrudes therefrom. The staple legs protruding through the articles are bent into substantial contact therewith so as to clinch the staples. In the clinched position, the staple legs are closely adjacent to one another and may be overlapping. During the clinching operation, the staple legs are guided by a groove in the surface affecting bending. Initially, the stapled leg is received in the central region of the groove. The central region of the groove has a greater cross-sectional area than the end region thereof.Type: GrantFiled: June 26, 1978Date of Patent: March 25, 1980Assignee: Xerox CorporationInventors: Charles W. Spehrley, Jr., Brian F. Walsh
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Patent number: 4189223Abstract: An apparatus in which an endless belt is at least partially supported on the fluid film in a predetermined path of movement. A pneumatic system, responsive to a deviation of the belt from the path of movement, restrains the movement of the belt to the pre-determined path of movement.Type: GrantFiled: July 7, 1978Date of Patent: February 19, 1980Assignee: Xerox CorporationInventor: Morton Silverberg
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Patent number: 4188907Abstract: An apparatus in which particles are dispensed from an open-ended chamber. An oscillatory magnetic field vibrates a magnetic member at least partially immersed in the particles. This prevents bridging and caking of the particles to facilitate flow of the particles from the open end of the chamber.Type: GrantFiled: August 11, 1977Date of Patent: February 19, 1980Assignee: Xerox CorporationInventor: Anthony F. Lipani
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Patent number: 4187969Abstract: An apparatus in which a stack of sheets is brought into contact with the clamping surface of a fixed stapler head. After the stack is secured against the clamping surface, a staple is driven therethrough.Type: GrantFiled: May 15, 1978Date of Patent: February 12, 1980Assignee: Xerox CorporationInventor: Charles W. Spehrley, Jr.
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Patent number: 4188213Abstract: A color process in which color copies of an original document containing color information are reproduced. In this process, successive single color electrostatic latent images are recorded on an image bearing member. Each successive single color electrostatic image is developed with particles containing a predetermined colorant therein. These particles are transferred from the single color electrostatic latent images in a prescribed sequence. The sequence of transfer is such that the colorant of each successive layer of transferred particles corrects for the impurities contained in the colorant of the previously transferred layer of particles. The final color rendition of the copy is, thereby, color corrected so as to substantially approximate that of the original document.Type: GrantFiled: March 28, 1975Date of Patent: February 12, 1980Assignee: Xerox CorporationInventor: Richard F. Lehman
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Patent number: 4185916Abstract: A composite particle comprising a conductive portion and an insulating portion. The insulating portion is integral and contiguous with the conductive portion.Type: GrantFiled: April 8, 1977Date of Patent: January 29, 1980Assignee: Xerox CorporationInventors: Roger L. Miller, Lloyd F. Bean