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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 4855923 | Parts assembly using signature analysis A method of assembling parts in which, before actual assembly of the parts, the forces associated with a good assembly of parts and the forces associated with a faulty assembly of parts are identified to train a pattern of recognition signature analysis s... | 08/08/1989 |
| 4851884 | Piecewise development system An apparatus which develops a latent image, corresponding to an original document, recorded on a moving member. The apparatus includes a first developer unit and a second developer having their characteristics regulated so that the density of the develope... | 07/25/1989 |
| 4842423 | Sealed bearing assembly An apparatus which seals a shaft mounted rotatably on a bearing member. At least two spaced apart annular flanges are mounted on the shaft. One of the flanges being is arranged to bear radially against the bearing member. An annular sealing member is moun... | 06/27/1989 |
| 4839688 | Development apparatus An apparatus in which a latent image recorded on a photoconductive member is developed with developer material. A developer roller, positioned closely adjacent to the photoconductive member, is arranged to transport the developer material into contact wit... | 06/13/1989 |
| 4838391 | Braking device A device which brakes a drive motor having a rotor adapted to be axially displaced when the motor winding is de-energized. A braking member moves with the rotor so that when the motor winding is deenergized, the circumferential surface of the braking memb... | 06/13/1989 |
| 4835570 | Apparatus for printing fixed and variable indicia An apparatus in which fixed and variable indicia are printed on a receiving member. One portion of a xeroprinting master has an imagewise pattern corresponding to the fixed indicia formed thereon. The xeroprinting master is uniformly charged and, the port... | 05/30/1989 |
| 4834502 | Optical mouse pad A pad, used with an optical mouse, including a substantially transparent sheet having a pattern of spaced dots on one surface thereof. One surface of a bottom sheet is positioned adjacent to the surface of the transparent sheet having the dots thereon. Th... | 05/30/1989 |
| 4831416 | Sheet set advancing apparatus An apparatus in which a rotatably mounted roller cooperates with a rotatably mounted polyhedron to define a nip through which a set of sheets is advanced.... | 05/16/1989 |
| 4828645 | Binding apparatus An apparatus which adhesively binds a set of sheets by applying a strip having an adhesive on one surface thereof to the spine of the set. The strip is supported on a heated platen which softens the adhesive. The spine of the set of copy sheets is pressed... | 05/09/1989 |
| 4827307 | Toner cartridge for use in an electrophotographic printing machine A toner cartridge for use in a copying machine for supplying fresh toner to the developer for the machine. The cartridge is formed with an elongated opening to permit discharge of toner when inverted. A removable flexible strip covers the opening and is d... | 05/02/1989 |
| 4825242 | Fusing apparatus control system An apparatus in which an image is fused to a sheet during a copy run. The number of sheets having images fused thereto is counted during the copy run. Heat is applied to at least the images of successive sheets of the copy run. The heat being applied to t... | 04/25/1989 |
| 4823102 | Magnetic roll for a copier A magnetic roll which is used in a processing station of an electrostatographic printing machine. The roll has a central portion with a plurality of spaced fins extending generally radially outwardly therefrom. A shaft extends outwardly from opposed ends ... | 04/18/1989 |
| 4811867 | Particle anti-bridging apparatus 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 chamb... | 03/14/1989 |
| 4806975 | Erase lamp with plural electrodes A lamp system which erases selected portions of an electrically charged photoconductive member. The lamp has a transparent housing defining a chamber filled with a gaseous medium. A charge is induced across a selected region of the gaseous medium. This ca... | 02/21/1989 |
| 4806971 | Magnet for use in a magnetic brush development apparatus A cylindrical magnet for a magnetic brush developer unit used in an electrophotographic printing machine is of U-shaped cross section having a cylindrical outer surface, and a cavity through which extends the rotary axis of the sleeve. The material formin... | 02/21/1989 |
| 4804996 | Charged particle sensor having magnetic field control An apparatus in which the developability of electrostatically charged particles in a mixture of particulate material is measured. The apparatus includes a transparent member positioned closely adjacent to a developer roller of an electrophotographic print... | 02/14/1989 |
| 4801135 | Sheet handling apparatus An apparatus in which the loading and unloading of sheets on a tray used in a printing machine is facilitated. The uppermost sheet of the stack of sheets on the tray is continuously maintained at a preselected level as additional sheets are loaded on the ... | 01/31/1989 |
| 4801270 | Shaft mounting and electrical grounding device A device which supports a shaft rotatably in an electrically grounded frame. The shaft is mounted in bearings in the aperture of an electrically conductive molded member mounted on the frame. A grounding brush is secured to the molded member and electrica... | 01/31/1989 |
| 4799853 | Self-centering end effector An apparatus which acquires individual articles having a substantially cylindrical aperture therein from a supply of roughly aligned articles in a storage bin. The apparatus grips the article on the interior wall of the cylindrical aperture therein. The g... | 01/24/1989 |
| 4797048 | Binding apparatus An apparatus which binds a set of sheets by applying a tape having an adhesive thereon to the spine of the set of sheets. A heated plate is resiliently urged into contact with the tape with a force selected to optimize adhesive melt and flow.... | 01/10/1989 |
| 4796051 | Multicolor liquid ink development system An apparatus in which latent images are developed with a liquid developer material of selected colors. A plurality of stationarily mounted developer units have liquid developer materials of selected colors supplied thereto. A cleaning material is furnishe... | 01/03/1989 |
| 4786924 | Hybrid control system for a copier An apparatus which measures the electrical current biasing a developer roller and transmits a control signal corresponding thereto to control discharging of marking particles in a development system of an electrophotographic printing machine. At selected ... | 11/22/1988 |
| 4780746 | Idler roll Roller pairs, including drive rolls and idler rolls, are used to advance a sheet in a printing machine. The idler roller includes a shaft and a sleeve. A bearing, mounted on the shaft, rotatably supports the sleeve. The inner race of the bearing is press ... | 10/25/1988 |
| 4771311 | Development apparatus An apparatus in which a latent image is developed with marking particles. In one mode of operation, the marking particles advance to the latent image. In another mode of operation, the marking particles are diverted from the latent image to prevent develo... | 09/13/1988 |
| 4771360 | Grounding brush A device which electrically grounds a component. The device includes a support member having a multiplicity of fibers mounted thereon. The support member has a plurality of spaced regions of reduced thickness to facilitate the breaking thereof. In this ma... | 09/13/1988 |
| 4769671 | Apparatus for positioning a photoconductive belt for development An apparatus in which a tubular member mounted on a shaft moves linearly in response to rotation of the shaft. A cam is mounted on the shaft and in engagement with bearings mounted on the interior surface of the tubular member. As the shaft rotates, the c... | 09/06/1988 |
| 4766462 | Liquid carrier recovery system A reproducing machine in which an electrostatic latent image recorded on a photoconductive member is developed with a liquid developer material comprising at least a liquid carrier having pigmented particles dispersed therein. The developed image is trans... | 08/23/1988 |
| 4761669 | Highlight color printing An electrophotographic printing machine in which indicia are printed on a sheet in at least two different colors. An electrostatic latent image is recorded on a photoconductive member and developed with a liquid developer material of one color. The latent... | 08/02/1988 |
| 4758101 | Bearing mounting A mounting which supports a bearing in a machine frame. The mounting is molded with the bearing being molded integrally therewith in an aperture therein. The outer race of the bearing is in molded non-rotative engagement with the mounting. The mounting ha... | 07/19/1988 |
| 4751547 | Sheet guide An apparatus in which a range of differing weight copy sheets are advanced from a processing station of an electrophotographic printing machine. At the processing station, developed images are transferred from a moving image bearing member to copy sheets.... | 06/14/1988 |
| 4746111 | System for controlling sorter indexing A copy sheet transport is provided for integration between a copier and an indexing sorter arranged for collating the copier output into copy sets or booklets. The transport is associated with a control system for controlling the acceleration or decelerat... | 05/24/1988 |
| 4744555 | Sheet transport and registration apparatus An apparatus in which a sheet is registered during the movement thereof. The sheet is moved along a path in a forward direction of movement and a lateral direction of movement substantially normal thereto. The lateral movement of the sheet causes the side... | 05/17/1988 |
| 4745432 | Liquid ink fusing system A reproducing machine in which an electrostatic latent image recorder on a photoconductive member is developed with a liquid developer material comprising at least a liquid carrier having pigmented particles dispersed therein. The developed image is trans... | 05/17/1988 |
| 4743939 | Intermediate transfer apparatus An apparatus in which a liquid image is transferred from a photoconductive member to a copy sheet. The liquid image, which includes a liquid carrier having toner particles dispersed therein, is attracted from the photoconductive member to an intermediate ... | 05/10/1988 |
| 4743936 | Transport having compensation for material packing 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 ... | 05/10/1988 |
| 4740814 | Preview system for an electrophotographic printing machine An electrophotographic printing machine in which an edited copy of an original document is formed. A video image of the original document is displayed and the machine operator adjusts the image as desired. After being adjusted, an edited copy of the video... | 04/26/1988 |
| 4736227 | Liquid ink transfer system An apparatus in which a liquid image is transferred from a surface to a substantially electrically non-conductive, flexible copy sheet with the liquid image being charged to one polarity and the surface being charged to a polarity opposite to the polarity... | 04/05/1988 |
| 4734789 | Editing copying machine An apparatus in which an altered copy of an original document is produced. An editing device associated with an electrophotographic printing machine changes the information in the original document and generates a signal indicative of the changes therein.... | 03/29/1988 |
| 4733272 | Filter regeneration in an electrophotographic printing machine A reproducing machine in which a liquid image including a liquid carrier having pigmented particles dispersed therein is transferred to a sheet of support material. In the operative mode, when the sheet of support material having the liquid image thereon ... | 03/22/1988 |
| 4731638 | Timing pulse generator for an electrophotographic printing machine An apparatus which generates timing pulses in an electrophotographic printing machine. A flexible member having spaced, marks formed photographically thereon is mounted on the shaft of the photoconductive member to rotate in unison therewith. As the flexi... | 03/15/1988 |
