| Patent Number |
Title Of Patent |
Date Issued |
| 3997488 |
Process for the preparation of a non-aqueous dispersion of thermoplastic resin |
December 14, 1976 |
| This invention provides non-aqueous dispersions containing a graft-copolymer and at least one substance selected from the group consisting of wax and polyethylene in an organic solvent having a high resistivity and a low dielectric constant, said dispersions being useful for coatings |
| 3995948 |
Phase mask for use in holographic apparatus |
December 7, 1976 |
| A phase mask for use in a holographic apparatus comprising a combination of phase mask and data mask and being so devised that an illuminant beam transmitting these masks is irradiated on a Fourier transform plane together with a reference beam coherent with said illuminant bean, said |
| 3994005 |
Film winding and shutter actuating mechanism for a cartridge film type camera |
November 23, 1976 |
| A film winding member and a shutter cocking member are movable as a unit until the shutter is cocked, and then the film winding lever moves by itself. The film winding member is stopped when a film position sensing lever senses a hole in the film indicating the frame position. Means are |
| 3992342 |
Non-aqueous dispersion and process of preparing same |
November 16, 1976 |
| A non-aqueous dispersion containing a graft copolymer and at least one substance selected from the group consisting of polyethylene, polyethylene wax and paraffin wax in a liquid carrier (an organic solvent) having a high resistivity and a low dielectric constant and a process of prepari |
| 3990907 |
Method of removing vacuum evaporated selenium photoresponsive layer from base material of drum o |
November 9, 1976 |
| To remove an old photoresponsive or photoconductive selenium layer from a drum of a copy machine as preparation for the vacuum evaporation of a new photoresponsive layer thereonto, the drum is immersed in a hot fluid such as water, steam or liquid or vapor trichloroethylene or perchloroe |
| 3985435 |
Color electrophotographic apparatus |
October 12, 1976 |
| An electrophotographic photoreceptor is moved in reciprocatory movements at least a number of times corresponding to the number of color-selective reflection and transmission filters in a predetermined zone in which are disposed an exposing station and a transfer printing station. The |
| 3982116 |
Slit illumination system for copying machine |
September 21, 1976 |
| In an electrostatic copying machine, an original document is scanned by moving an original document over an illuminated slit. The system for illuminating the slit comprises an elongated light source and a first elliptic cylindrical mirror having a focus coincident with the axis of the |
| 3981580 |
Method and a system for concurrently copying both sides of an original |
September 21, 1976 |
| A method and a system are provided for concurrently copying both sides of an original by concurrently scanning nonoverlapping areas of the two sides of the original with two incident beams and scanning adjacent areas of a copy with the resulting reflected beams. Since the two incident be |
| 3977778 |
Electrophotographic apparatus |
August 31, 1976 |
| In electrophotographic apparatus for producing positive copies of both positive and negative originals with toner of one polarity by establishing and developing an electrostatic latent image on a light-sensitive member that is precharged to a first polarity for positive originals and to |
| 3977761 |
Bar lens array cleaning device |
August 31, 1976 |
| A plastic casing in which bar lenses are imbedded is formed with longitudinal grooves in the sides thereof. The bifurcations of a bifurcated pull rod are guidingly slidable in the grooves. A frame is connected to the pull rod for movement therewith and has portions facing the end fac |
| 3974974 |
Back tension imparting device |
August 17, 1976 |
| A device for imparting back tension of a predetermined magnitude to the portion of strip material disposed between a take-up reel and a supply reel when the strip material wound at one end on the supply reel and at the other end on the take-up reel is paid out of the supply reel by r |
| 3974167 |
(7-Nitro-2-aza-9-fluorenylidene) malononitrile |
August 10, 1976 |
| Photosensitive material for use in electrophotography which is a charge transfer complex comprising (mononitro-2-aza-9-fluorenylidene) malononitrile and an organic photoconductor. |
| 3970383 |
Apparatus for color electrophotography |
July 20, 1976 |
| An apparatus for color electrophotography including optical scanning means which moves intermediate a stationary original document and a copy sheet for scanning the colored image on the document onto, and a drum-shaped photoreceptor which is rotated in synchronism with the scanning movem |
| 3967241 |
Pattern recognition system |
June 29, 1976 |
| In a pattern recognition system of the type in which an input pattern is read, and stored in a two-dimensional memory, and after the features of the input pattern are extracted, they are compared with the standard patterns in storage in such a way that the degrees of similarity of the |
| 3966471 |
Electro photosensitive materials with a protective layer |
June 29, 1976 |
| A photosensitive material comprising a conductive support provided with a photoconductive layer and a protective layer, wherein the protective layer contains an organic aluminum compound. |
| 3966198 |
Sheet conveying device |
June 29, 1976 |
| A device for transporting a flexible sheet from one device wherein the sheet is processed at one speed to another device wherein the sheet is processed at another speed. The device comprises two pairs of rollers, one pair of rollers disposed on the downstream side of the path of movement |
| 3965556 |
Jacket holder |
June 29, 1976 |
| A jacket holder for holding a jacket wherein strips of microfilm are inserted into pockets formed in the jacket. The jacket holder comprises first and second plate members hinged with each other for holding the jacket therebetween. The first plate member includes a raised inclined su |
| 3964828 |
Apparatus for preparing electrophotographic microfilm |
June 22, 1976 |
| An electrophotographic process and a system for preparing microfilm is provided in which use is made of a roll film including a photosensitive layer a thin film of organic photoconductive material on a film of polyester. A portion of the film is taken out of the roll and is conveyed |
| 3964431 |
Device for supplying an offset preventing liquid to a fixing roller |
June 22, 1976 |
| A device comprising an offset preventing liquid supply roller of a novel construction which is capable of supplying a suitable amount of offset preventing liquid in one operation to a fixing roller of an electrophotographic copying apparatus and remaining in sevice over a prolonged t |
| 3962724 |
Method of and device for testing movable magnetic heads for ability to trace a predetermined spi |
June 8, 1976 |
| A method of and a device using a testing sheet having magnetically recorded thereon a magnetic head deviation detection signal formed on a portion of a predetermined spiral magnetic track or on a portion of a predetermined spiral magnetic track and on at least one side of such one portio |
| 3962546 |
Malfunction detection and changeover apparatus for data communications system |
June 8, 1976 |
| A data terminal is connected to a telephone line for data transmission and reception. When a malfunction is detected in the data terminal, the data terminal is automatically disconnected from the telephone line and a telephone set connected to the telephone line. After a predetermined ti |
| 3962545 |
Utility meter reading system using telephone line |
June 8, 1976 |
| A plurality of remote terminals are each connected to different pluralities of gas or electric meters or the like which are close together such as in an apartment building complex. The remote terminals communicate with a central terminal over a single public telephone line. The central t |
| 3962534 |
Facsimile set |
June 8, 1976 |
| A facsimile system capable of automatically transmitting or receiving the image through a telephone channel is disclosed in which each facsimile set may automatically reset its facsimile recorder and reader when the intercommunication with the other subscriber's facsimile set is inte |
| 3956580 |
System for reducing the transmission time of similar portions of visible images |
May 11, 1976 |
| In a transmitter, a fixed visible image or the subject copy is scanned with a predetermined scanning line width to convert the divided image pattern of each scanning line into a binary coded bit pattern; an old bit pattern of a scanning line is compared with a new bit pattern of the next |
| 3955494 |
Device for preventing an image of a printing master from being printed in an inclined position |
May 11, 1976 |
| A device for duplicating apparatus adapted to prevent an image of a printing master from being printed in an inclined position on copies produced from the printing master mounted in the apparatus. The device comprises, in combination, a pair of delivery rollers adapted to hold thereb |
| 3953433 |
Sensitizer for use in electrophotographic light-sensitive material |
April 27, 1976 |
| There are provided sensitizers for electrophotographic light-sensitive materials including organic photoconductors and electrophotographic light-sensitive materials containing same. The sensitizers are reaction products comprising benzopyrylium salt and benzopyran. |
| 3952242 |
Automatic voltage regulator with optical feedback |
April 20, 1976 |
| An automatic voltage regulator employing an optical feedback system, in which a luminous element, whose intensity varies in response to the variation in a regulated voltage, illuminates a photosensitive element which generates a feedback signal responsive to intensity of light. More |
| 3951585 |
Method of heating and fixing a toner image |
April 20, 1976 |
| A method and a device using a pair of fixing rolls at least one of which is heated so that the two rolls are brought into pressing engagement with each other by thermal expansion of the heated roll. A copy sheet bearing a toner image formed thereon is fed between the two rolls so as to f |
| 3951518 |
Projector and projection screen assembly |
April 20, 1976 |
| A box-shaped projection screen unit is attachable to an optical projector to constitute a cover therefor. The screen unit comprises a translucent screen mounted in an opening formed through the side of the box opposite an open side of the box which mates with the projector. A rectangular |
| 3951357 |
Automatic cartridge tape draw-out device |
April 20, 1976 |
| A reel drive roller and a tape draw-out roller larger in diameter than the reel drive roller and formed with irregularities on its peripheral surface are rotatably mounted coaxially on support means. When the support means is swung toward the opening in a cartridge, the reel drive roller |
| 3950615 |
Chronic interline phase error from an image scanner generating plural successive image signals i |
April 13, 1976 |
| A cylindrical scanner scans two lines of a document for each revolution, and has two marks spaced approximately 180.degree. from each other which generate a synchronizing signal for each scanline. In order to allow for production inaccuracies in the relative placement of the two marks, m |
| 3948510 |
Sheet jam detector for electrophotographic copying machine |
April 6, 1976 |
| Timers measure the length of time for the leading edge of the first copy sheet to reach a sensing point at the discharge side of the machine after the copy operation is started and de-energize the machine if the measured time is longer than a predetermined time value, indicating that the |
| 3948215 |
Fixing toner images in electrophotography |
April 6, 1976 |
| A toner image formed on a support sheet by toner particles adhering to selected areas of the sheet is fused either by simply disposing the sheet in with a heating surface, or by additionally pressing the sheet. After the toner image particles are fused, the sheet is cooled while maintain |
| 3947860 |
Remote focusing device for cameras |
March 30, 1976 |
| A remote focusing device for cameras is disclosed in which a focusing ring is rotatably disposed around the shutter release button coaxially thereof and is operatively coupled to a mechanism for moving the camera lens in such a way that when the focusing ring is rotated, the camera lens |
| 3947020 |
Device for automatically separating a photosensitive sheet from an original for copying apparatu |
March 30, 1976 |
| A device for separating a copy sheet and an original that are delivered together by copying apparatus along a common path, including suction means for drawing the original from the path and a curved guide plate for guiding the copy sheet as the original is separated therefrom. The suctio |
| 3946666 |
Comma printing mechanism |
March 30, 1976 |
| A printing apparatus in which a comma printing mechanism prints commas at any desired location within a printed number. Comma printing is accomplished by comma hammers, with one hammer provided between each two numerical places of the printing apparatus. All the comma hammers are ini |
| 3943541 |
Liquid developing apparatus for electrophotography |
March 9, 1976 |
| A developing apparatus in which a developing solution is caused to flood through a multiplicity of small apertures in an apertured plate to produce a uniform flow over the plate and is then caused to flow in the direction of travel of a sheet to be developed by use of a drawing roller ro |
| 3941472 |
Photosensitive drum for electrophotographic copying machines |
March 2, 1976 |
| An electrically insulated minor portion is provided on the periphery of a photosensitive drum comprising a cylindrical supporter, a photoconductive strip wound in roll form on a supply reel disposed in the interior of the cylindrical supporter and paid out thereof to apply a portion ther |
| 3941469 |
Dry type developing device for a copying apparatus or like apparatus |
March 2, 1976 |
| A dry type developing device built in a copying apparatus or like apparatus for developing an electrostatic latent image formed on a copy sheet by means of a magnetic brush wherein the device is provided with sheet guide means and receiver means which have the effect of ensuring proper c |
| 3936045 |
Sheet stripping device for copying apparatus |
February 3, 1976 |
| A device comprising a sheet pick-off member maintained in pressing engagement with one marginal portion of a specific zone of the peripheral surface of a drum with which one marginal portion of each copy sheet is adapted to be brought into engagement, and sheet guide means for guiding |
| 3936041 |
Automatic original supply device for electronic copying apparatus |
February 3, 1976 |
| An automatic original document supply device for electronic copying apparatus including a detection and control system, interposed between the original supply roller system and the original conveying and holding belt, which detects the passing of the trailing end of an original and produ |
| 3934256 |
Identification card producing apparatus |
January 20, 1976 |
| An apparatus for producing identification cards including a photograph of a person and written material by using electrostatic and transfer printing techniques. A photoreceptor comprising a layer of photoconductive material on a conductive supporter is charged and is exposed to an optica |
| 3931464 |
Line skip system for facsimile device |
January 6, 1976 |
| A document for transmission has ruled lines such as borders printed at predetermined locations thereon which do not constitute usable information. The main scan direction is perpendicular to the ruled lines. Each main scan line is pre-scanned to determine if the line contains informa |
| 3930925 |
Master plate treating device for a duplicating machine |
January 6, 1976 |
| A device for giving a desensitizing or so-called ink-repellent etching treatment in addition to a fixing/and or a drying treatment to a master plate which has been developed but not fixed yet when such master plate is prepared by an electrophotographic copying apparatus. As soon as the |
