Patents by Inventor R. Clark DuBois

R. Clark DuBois has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4397461
    Abstract: A sorting machine has bins which are shifted sequentially past a sheet entry location between positions at opposite sides of the sheet entry location, to provide a relatively wide sheet receiving space between adjacent bins at the entry location. The bins have their outer ends pivotally mounted in a frame structure spaced from the sheet entry location, so that the bins slope forwardly. Shifting of the bins is accomplished by a reversible motor driven rotor located at one side of the bins and having recesses to receive trunnions at one side of the bins on each one-half revolution to shift a bin in one direction or the other. The other side of the bin group is unobstructed.
    Type: Grant
    Filed: October 21, 1981
    Date of Patent: August 9, 1983
    Assignee: Gradco/Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma
  • Patent number: 4332377
    Abstract: A sorting machine is provided for attachment to a copying machine to receive successive sheets from an outlet from the copying machine. The sorting machine has plural trays mounted to move progressively past the sheet outlet in opposite directions, the trays being relatively close together when positioned at either side of the outlet, but adjacent trays being widely spaced to accommodate the incoming sheets from the outlet. The trays are fed past and spaced at the outlet by driven members at opposite sides of the tray which engage and shift stacked trays in succession. The driver members are notched discs functioning as a linear Geneva movement. The remote ends of the trays are freely supported one on the other for relative longitudinal and pivotal movement. In certain forms, the remote tray ends are mounted one on the other by end pieces which have wedge surfaces causing the remote ends to be spaced apart responsive to longitudinal movement of the trays.
    Type: Grant
    Filed: January 27, 1981
    Date of Patent: June 1, 1982
    Assignee: Gradco/Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma
  • Patent number: 4328963
    Abstract: A sorting machine is provided for attachment to a copying machine to receive successive sheets from an outlet from the copying machine. The sorting machine has plural trays mounted to move progressively past the sheet outlet in opposite directions, the trays being relatively close together when positioned at either side of the outlet, but adjacent trays being widely spaced to accommodate the incoming sheets from the outlet. The trays are fed past and spaced at the outlet by driven members at opposite sides of the tray which engage and shift stacked trays in succession. The driven members are notched discs functioning as a linear Geneva movement. The remote ends of the trays are freely supported one on the other for relative longitudinal and pivotal movement.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: May 11, 1982
    Assignee: Gradco Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma
  • Patent number: 4186837
    Abstract: A conveyor moves a series of cartridges containing undeveloped film and sender-identified mailers in correlated side-by-side relation from a loading station past a cartridge sensing station, a dual labeling station, and a plurality of discharge stations. Information sensed from each cartridge is stored in a memory and later controls the off-loading of the correlated cartridges and mailers at an appropriate one of the discharge stations from which the cartridges go their separate ways for film processing. Prior to off-loading, the side-by-side cartridge and mailer receive separate labels preprinted with correlating indicia enabling the developed film and the mailer to be correctly reunited for return to the sender.
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: February 5, 1980
    Assignee: Mystic Color Lab, Inc.
    Inventors: Stanley Popiel, R. Clark DuBois, Jay L. Carley, John C. Hamma
  • Patent number: 4155168
    Abstract: A resilient metallic measuring tape of concavo-convex cross-section is coiled in inside wound fashion against an inner peripheral surface of a cup rotatably mounted within a case. The leading end of the tape is laterally offset from the tape coil for extension through a side opening slot in the case. A one-way brake, normally engaging an outer peripheral cup surface to inhibit cup rotation in a tape uncoiling direction, is released to permit automatic uncoiling of the tape into a rectilinear state for progressive extension out through the slot. Brake engagement, however, does not impede cup rotation in the opposite direction incident to manual recoiling of the tape.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: May 22, 1979
    Assignee: Fairfield Sailing Supplies, Inc.
    Inventor: R. Clark DuBois
  • Patent number: 4019911
    Abstract: Disclosed herein are novel liquid toner compositions that are useful in copier duplicators. The toner compositions of the present invention are highly hydrophobic liquid toners for developing latent images and comprise pigment, dye, polymer and a silane treated fumed silica, the combination being suspended in a volatile isoparaffinic hydrocarbon vehicle.
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: April 26, 1977
    Assignee: Pitney-Bowes, Inc.
    Inventors: Bheema R. Vijayendran, R. Clark DuBois
  • Patent number: 3939087
    Abstract: Disclosed herein are novel liquid toner compositions that are useful in copier duplicators. The toner compositions of the present invention are highly hydrophobic liquid toners for developing latent images and comprise pigment, dye, polymer and a silane treated fumed silica, the combination being suspended in a volatile isoparaffinic hydrocarbon vehicle.
    Type: Grant
    Filed: November 19, 1973
    Date of Patent: February 17, 1976
    Assignee: Pitney-Bowes, Inc.
    Inventors: Bheema R. Vijayendran, R. Clark DuBois
  • Patent number: D263848
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: April 13, 1982
    Assignee: Gradco/Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma
  • Patent number: D263850
    Type: Grant
    Filed: July 16, 1980
    Date of Patent: April 13, 1982
    Assignee: Gradco/Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma
  • Patent number: D264092
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: April 27, 1982
    Assignee: Gradco/Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma
  • Patent number: D264220
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: May 4, 1982
    Assignee: Gradco/Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma
  • Patent number: D265564
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: July 27, 1982
    Assignee: Gradco/Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma
  • Patent number: D270253
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: August 23, 1983
    Assignee: Gradco/Dendoki, Inc.
    Inventors: R. Clark DuBois, John C. Hamma