Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 4931622 | Electronic card receiving device and ejection mechanism When an electronic card is inserted into the device, a first reject plate is pressed to elongate first and second coil springs to anchor the card. When no writing or reading ROM and RAM of the card, electric current instantaneously flows through a solenoi... | 06/05/1990 |
| 4922474 | Timepiece and method for its realization The chronograph hand (8) mounted on a shaft (7) carries a wheel (11) coaxial to a wheel (13) mounted on the end of a small-seconds shaft (2) extending beyond the frame (1) of the clockwork. A double sliding pinion (16-17), carried by a lever (14), can be ... | 05/01/1990 |
| 4879066 | Fire retardant additives and their uses A composition comprising two or more frits of different melting temperatures and optionally one or more ceramic material or basalt or intumescent substance is provided that may be added to a variety of materials to provides or enhance fire resistance. Suc... | 11/07/1989 |
| 4868800 | Advanced date warning system An electronic advanced date warning system including a base having a front surface, a first member associated with the front surface for lighting selected date warning areas thereon, a second member associated with the front surface for lighting selected ... | 09/19/1989 |
| 4865401 | Glove bag waste removal system for asbestos impregnated brakes An improved lightweight, collapsible preferably PVC formed glove bag asbestos brake removal/confinement system. The bag includes removable stiffening ribs and a replaceable flexible dual membrane opening in one end to mount the bag over the brake assembly... | 09/12/1989 |
| 4861642 | Reinforcement of phenolic foams composite A foam composite--especially useful as an insulating board--comprising first and second opposed corrugated skins having corrugations with inwardly facing apices, one or each of the skins being provided with a mat of porous or apertured reinforcement mater... | 08/29/1989 |
| 4858814 | Automatic nailer system The present invention, provides an automatic nailer system, for securing nailed ferrules to a substrate, comprising: a body defining a generally cylindrical channel for receiving a nailed ferrule with the nail and the channel being approximately coaxial; A ham... | 08/22/1989 |
| 4854247 | Lock type sealed paper currency collector and security device A lock type sealed security device or unit for clamping bills accumulated in vending machine validating or other paper currency accumulating devices. The device is locked onto the accumulating device in a position which allows the currency to be accumulat... | 08/08/1989 |
| 4854489 | Garment hanger A garment hanger is provided comprising a middle section with a hanging member such as a hook mounted thereon and two end sections with means for engaging a garment. At least one of the end sections is arranged for sliding movement relative to the middle ... | 08/08/1989 |
| 4854889 | Miniature electrical connector An electrical connector includes contacts to be connected to lead wires and a housing having apertures for receiving the contacts. The lead wires are connected to the contacts when the contacts are forced into the apertures of the housing. Each of the con... | 08/08/1989 |
| 4856077 | Method of signature verification and device for carrying out the method A method and a device for signature verification, where an electric pulse train individual for every person in question is caused to be generated in that said person is allowed to move a pen comprising at its nib a light-emitting member and a light-sensit... | 08/08/1989 |
| 4851971 | Transparency illuminator An improved front loading transparency illuminator having a transparency retaining frame with a side wall mounting flange and an open, substantially perpendicular transparency receiving channel. The multipiece frame includes an internal channel for connec... | 07/25/1989 |
| 4848889 | Artcle of adornment A pair of frames for eyeglasses is made from transparent plastics material and includes an elongated passage therein. An elongated, flexible colored member having sides of different colors is located in the passage in one of several axially rotational pos... | 07/18/1989 |
| 4848612 | Hinged dispensing closure An improved reinforced snap open hinged dispensing closure for a dispensing container. The closure having the snap open feature such that the closure lid is retained in an open position away from the dispensing opening of the container. The closure lid ha... | 07/18/1989 |
| 4847565 | Solid state electromagnetic wave amplifier A solid state electromagnetic wave amplifier is provided with confinement structures for the prevention of transverse carrier wave diffusion into the amplifier body. The carrier waves are confined with a non-metallic semiconductor layer sandwiched between... | 07/11/1989 |
| 4845509 | Multiple loop receiving device in a security system A receiving device for detecting the presence of an indicating device in a restricted investigation zone, where coils and associated feed and receiving equipment are provided to emit and receive magnetic alternating fields in order thereby to detect the p... | 07/04/1989 |
| 4842378 | Method of illuminating flat panel displays to provide CRT appearing displays LCD screen illumination is provided by a neon tube formed to fit closely adjacent the screen. A tube formed to fit around the periphery of the screen shielded from the viewer's eyes can be utilized to front light the screen. A serpentine shaped tube can b... | 06/27/1989 |
| 4843221 | Electronic card receiving device An electronic card receiving device includes a card holder forming a card receiving space in the device for receiving an electronic card, a card latching mechanism for holding the electronic card in position in the card receiving space formed by the card ... | 06/27/1989 |
| 4842347 | Glove box for removal of hazardous waste from pipes An improved glove box hazardous waste removal system especially for confining pipes, including a pair of semi-rigid side walls securable at one edge to one another to form a rigid cylindrical unit. The box includes sealable sleeves on each end thereof, se... | 06/27/1989 |
| 4837945 | Dryer, particularly for the chemical industry A dryer having a drying chamber and an inlet housing structure wherein a heating device is located in the inlet housing structure. An outlet structure is provided with a main chamber and a secondary chamber wherein the flow of gas exiting the drying chamb... | 06/13/1989 |
| 4836591 | Anti-theft vehicle hood lock release blocker mechanism An anti-theft hood lock release blocker assembly for preventing the release of a vehicle hood latch activated by a connecting sheathed cable. A bared portion of the cable is secured by a cable connector matingly engaged to a protruding member of a platfor... | 06/06/1989 |
| 4837174 | Method for producing thin conductive and semi-conductive layers in mono-crystal silicon A method for producing thin conductive or semiconductive layers embedded in silicon in the manufacture of structures for integrated circuits and the like. The invention is characterized by implanting metal atoms (14) in a silicon substrate (15) to a pre-d... | 06/06/1989 |
| 4837153 | Compost air injection and evacuation system with improved air control The present invention provides a method and apparatus with improved fluid flow control for economical and efficient composting. The improved fluid flow control is provided by a lance having at least two separate fluid flow zones to provide a fluid flow pr... | 06/06/1989 |
| 4834791 | Method for producing raw iron from iron concentrates for the manufacture of gas, and plant apparatus for carrying out the method A method for producing raw iron from iron-bearing oxidic material, comprising finally reducing the iron oxide by charging the iron oxide, coal, oxygen gas and slag-forming flux to a molten iron bath contained in at least one reactor vessel, a final reduct... | 05/30/1989 |
| 4828428 | Double tamping bar vibratory screed A double tamping bar vibratory screed is disclosed for use with a lay-down machine for laying a roadway. The screed consists of a main body portion having a strike-off plate on its leading edge which is followed by two tamping bars having independent ecce... | 05/09/1989 |
| 4826156 | Exerciser The user of the exerciser acts on control members which are integral with a cylinder (6) moving in a vertical (8). A fixed tube (12) penetrates into the cylinder (6). A compressor (16) produces an overpressure inside the tube (12) and the cylinder (6). An... | 05/02/1989 |
| 4824637 | Alloy phase stability index diagram An alloy phase stability index diagram comprising a phase distribution range specified therein by calculating average values Md and Bo of an alloy according to the following formulae with respect to an energy level of "d" orbitals of an alloying element a... | 04/25/1989 |
| 4824154 | Security lock for double-hung window A security lock for a double-hung sash window assembly which is to be mounted on a stile of one of the sash frames to limit movement of the second sash frame relative to the one sash. The lock includes a casing adapted to be mounted within one of the sash... | 04/25/1989 |
| 4821596 | Rotator A rotator comprises a gear housing which has a lower attachment for fitting the housing to the top of a mast, and which has extending therefrom a tube which can be rotated about its longitudinal axis relative to the gear housing by means of a gear therein... | 04/18/1989 |
| 4820222 | Method of manufacturing flat panel backplanes including improved testing and yields thereof and displays made thereby Subdivided pixels are provided with interconnected and hence redundant row and column bus lines to reduce fatal defects. The respective redundant row and column lines also can be interconnected between subpixels to further reduce defects. One defective su... | 04/11/1989 |
| 4820000 | Glove bag waste removal system for asbestos impregnated brakes A lightweight, collapsible preferably PVC formed glove bag asbestos brake removal/confinement system. The bag includes removable stiffening ribs and a flexible membrane or bunge controlled opening in one end to mount the bag over the brake assembly. The b... | 04/11/1989 |
| 4820618 | Method of forming a color proof by color electrostatography An emulsified polymer color toner in a liquid carrier is provided for application to a latent electrostatic image on an electrostatographic recording member and transferred to a receptor sheet. The color toner consists of a colorant and a polymeric binder... | 04/11/1989 |
| 4818032 | Anti-theft locking device Anti-theft locking device for securing a wheel medallion to the wheel of a vehicle. The device is utilized with a conventional wheel medallion of the type having spring retainers that protrude from the body of the medallion and extend through an opening a... | 04/04/1989 |
| 4818330 | One-sided corrugated board machine having replacable corrugating rollers One-sided corrugated board machine having at least two pairs of corrugated rollers, each pair forming an assembly including a lower corrugated roller and an upper corrugated roller. Each of the pairs of rollers is supported on a movable, lockable bearing ... | 04/04/1989 |
| 4816004 | Means for providing uplift to the female bust Means for providing uplift to the female bust comprises a pad to be used in conjunction with another like pad, each pad being placed, in use, in the lower part of a respective cup of a brassiere, the pad being defined by a first substantially flat surface... | 03/28/1989 |
| 4812811 | Alarm tag An alarm device, comprising a so-called alarm tag consisting of two parts arranged so as to be placeable each on one side of an article, for example an article of clothing, of fur or other article, where a needle is provided to extend from one part throug... | 03/14/1989 |
| 4805906 | Pinball machine construction A pinball machine construction having a horizontally hinged security door which includes a top control panel which also clamps the glass cover over the playing field. A variable ball delivery system is remotely actuated and variable to deliver the balls t... | 02/21/1989 |
| 4802848 | Parapulper restorative pin and driver assembly The parapulper restorative pin comprises a stem provided with a handle permitting to operate it manually, the dentist rotating this handle by gripping it between his fingers. This handle is provided with four longitudinal grooves constituting holds for fo... | 02/07/1989 |
| 4802318 | Insulating block unit, a method for its manufacture, and a method of erecting a wall by means of such blocks A thermally insulating masonry block constituted by a sandwich of at least two building blocks between which a plate of insulating material is interposed, the sandwich being tied together by at least one strap. A method of making such an insulating masonr... | 02/07/1989 |
| 4797122 | Drip-proof connector A drip-proof connector is used in connection between electric cables or the like and electric and electronic appliances such as cameras for televisions, servomotors for machine tools and the like. An insert of the connector is adapted to abut against an i... | 01/10/1989 |
