Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 5368208 | Apparatus for shielding air from molten metal flow from laddle to tundish in continuous casting facilities A sealing apparatus for shielding air from a path of molten steel in a laddle to a tundish in continuous metal casting facilities to prevent oxidation of the molten metal, the apparatus including a seal box lift mechanism mounted on a tundish body through... | 11/29/1994 |
| 5013026 | Sheet stacking and inverting apparatus A disc-stacker for inverting sheets either singly or in sets as they exit a copier enabling dual function N-1 and 1-N sequence copying with either face-up or face-down copies. The stacker comprises a sheet inverter wheel having a slot into which one or mo... | 05/07/1991 |
| 5006226 | Fluidized, dry bed, ore concentrator A fluidized, dry bed, ore concentrator in which a uniform air stream is utilized to fluidize ore particles within a region defined in part by two, moving, riffled surfaces. The particles are statically charged to enhance separation of particles within the... | 04/09/1991 |
| 4995530 | Adjustable dispenser for holding boxes of plastic bags An adjustable dispenser container for holding boxes of plastic bags that are usually stored on a roll or packed individually side-by-side within a box to be dispensed from the box via a slot including a housing having sidewalls, a bottom, a top and a long... | 02/26/1991 |
| 4981223 | Apparatus for feeding boards from the base of the stack Apparatus for feeding boards (10) sequentially in one direction from the base of the stack through a feed gate (11) at the base of a front stack retaining wall (12) comprising a transverse series of perforated reciprocating conveying straps (14) mounted o... | 01/01/1991 |
| 4972971 | Automatic inflator for inflatable articles An inflator for automatically inflating an inflatable article, such as a personal flotation vest, upon immersion in water. A plunger is movably mounted within a housing and is movable with respect to a pressurized gas canister attached to the housing. An ... | 11/27/1990 |
| 4971224 | Valve and container with a valve The present invention relates to a valve and container provided with such a valve, which can be used with portable apparatus using fuel gas, normally operating with piercable cartridges. The valve according to the invention is characterized by the presenc... | 11/20/1990 |
| 4968015 | Sheet feeding apparatus and method Sheet feeding apparatus for example for use as a banknote counter comprises a stripper system having a pair of rollers; and a banknote detection system including two pairs of rollers defining respective nips into which single notes are fed by the stripper... | 11/06/1990 |
| 4962920 | Sheet sorting device A sheet sorting device having a plurality of bin trays has a resilient member for imparting to a bin tray support member a force in the direction opposite to the direction of gravity and reducing a load applied to a bin tray drive source. A detecting devi... | 10/16/1990 |
| 4962872 | Container closure device A closure dispensing device or valve and method which may be applied to a liquid container. The preferred closure device includes a channel body with an extending channel portion. The channel portion has an internal channel with an exit port. The exit por... | 10/16/1990 |
| 4962851 | Dispenser A pump type dispenser having a bellows or diaphragm formed by a plurality of hollow ribs and valleys therebetween extending between a peripheral skirt and a central barrel. The valleys are inclined downwardly from the skirt to the barrel insuring the stre... | 10/16/1990 |
| 4961518 | Cartridge container A cartridge container of the character to be mounted in an office machine into and from which a viscous fluid such as ink is supplied and sucked out, comprises: a lower half container section made of a rigid material and an upper half container section ma... | 10/09/1990 |
| 4960273 | Dual mode document feeder A document feeder includes a feed tray which is pivotal about a horizontal axis between an elevated automatic position in which it can be locked and in which the uppermost document of a stack of documents thereon is engaged with an endless belt skimmer to... | 10/02/1990 |
| 4958749 | Appliance for simultaneously dispensing both free-flowing and pourable substances A dispenser includes a first receptacle enclosing a second receptacle, for storing and providing substantially simultaneous dispensing of free-flowing and pourable substances, respectively. A dosing element is included in the second receptacle for limitin... | 09/25/1990 |
| 4955596 | Method and apparatus for feeding and stacking articles An envelope processing system (20) includes an input transport section (22); a processing/transport section (24); and a discharge transport section (28). Envelopes are fed on-edge from the input transport section to the processing/transport section (24) b... | 09/11/1990 |
| 4951934 | Device for stacking sheet-like articles such as letters The invention relates to a device for stacking flat articles, such as postal items. First guide (9), which form part of a stacker head (7) and which bound a stack of articles (2) already stacked in a stacker bed (1) in a plane of stacking (D), carry out a... | 08/28/1990 |
| 4951936 | Separation unit A separation unit includes separation pawls for separating paper from a photosensitive drum, and a second shaft for supporting the separation pawls. Each separation pawl has a mounting hole extending therethrough and a slit opening the mounting hole. The ... | 08/28/1990 |
| 4949949 | Hybrid sequenced dadf duplexing system Disclosed is a hybrid copying system including a document feeder for a copier with a document bypass loop for copying documents in desired non-linear page sequences for improved copying efficiency, particularly for duplex copying. As shown, documents from... | 08/21/1990 |
| 4948012 | Dispenser for solid comestibles A dispenser for solid comestibles is disclosed which has a reservoir for containing the comestibles, a port for accessing the comestibles, a channel interposed between the port and the reservoir and a displacement mechanism which dispenses a consistent qu... | 08/14/1990 |
| 4948011 | Method and apparatus for destacking containers An apparatus and method for destacking and dispensing cup-like containers, such as for use in association with an automated product packaging machine, are disclosed. The apparatus includes pairs of upper and lower jaws associated with each stack of contai... | 08/14/1990 |
| 4946066 | Paper dispensing device A paper dispensing device having a one-piece unitary main body with an upper and lower portion having a depression in the upper portion for receiving the operator's finger therein. The body is resilient and, upon downward pressure of the upper portion, th... | 08/07/1990 |
| 4946078 | Apparatus for feeding bulk material A rotary feeder includes a housing which accommodates a rotor extending between two lateral disk members. Bearing against the peripheral area of each disk member is a slide ring which is acted upon by a pressure fluid with a constant holding force by whic... | 08/07/1990 |
| 4943045 | Printer sheet feed system A print medium sheet feeding system for an ink jet printer having a print head with a planar array of jets is provided by clamping the leading edge of a paper after it is passed through a printing zone to a rotating assembly of parallel disks. The sheet i... | 07/24/1990 |
| 4941655 | Skew-correcting and delay mechanism for sheet feeder Skew-correcting apparatus in which first and second sets of opposing feed rollers each comprise a pair of end rollers and a center roller between the end rollers. The first center roller has a sheet-gripping portion of limited circumferential extent formi... | 07/17/1990 |
| 4940850 | Color sorting apparatus A color sorting apparatus for granular objects comprises a plurality of sorting units arranged in parallel relation to each other. Detecting positions of the respective sorting units are spaced from each other in a horizontal plane. Each sorting unit incl... | 07/10/1990 |
| 4940221 | Suction-type sheet-separating device for a feeder of a printing press A suction-type sheet-separating device for a feeder of a printing press has suction-type grippers for lifting off an uppermost sheet from a pile of sheets and for transferring the lifted-off sheet to a transporting device for conveying the lifted-off shee... | 07/10/1990 |
| 4940163 | Wiring accessory dispenser A dispenser for wiring accessories has an elongate plate-like configuration and comprises a baseplate from which projects a bar extending transversely across the baseplate to a width less than the width of the baseplate. A longitudinal groove in the bar p... | 07/10/1990 |
| 4936493 | Elastomeric valve and piston structure for product dispenser An elastomeric piston member of a product dispenser for semi-viscous liquids includes integrally molded priming valve structure as well as check valve structure. The priming valve comprises a number of generally flat, triangular segments arranged around t... | 06/26/1990 |
| 4936564 | Sheet handling apparatus A cash dispensing unit includes first (68) and second (70) cooperating endless groups of belts for feeding a stack (72) of currency notes to an exit location (50). First ends of the first (68) and second (70) groups of belts respectively pass round first ... | 06/26/1990 |
| 4934567 | Hybrid beverage mixing and dispensing system A hybrid postmix beverage mixing and dispensing system wherein a beverage is mixed at an account from carbonated water and syrup, the brix ratio of which is precisely controlled by the use of a ratio proportioning pump. The mixed beverage is then delivere... | 06/19/1990 |
| 4934569 | Pressurized fluid injection method and means A pressurized fluid is injected into a mass of material through at least one length of hose or other tubing of inherently resilient, elastomer material having one end closed and provided with at least one series of potential openings cut into the elastome... | 06/19/1990 |
| 4934570 | Container closure with breakaway plunger and diffusing container incorporating the same The invention relates to improved end closures for a dispensing container. One end closure is a nonmetallic thermoplastic plunger end closure which is comprised of a retaining member and a plunger member which are connected along a fragmentation line. The... | 06/19/1990 |
| 4934681 | Hybrid output duplex copying system A copier with a coordinated hybrid or non-sequential postcollation sorter operation is disclosed in a hybrid copying system comprising a document feeder with a document bypass loop for copying documents in desired non-linear page sequences for improved co... | 06/19/1990 |
| 4932563 | Combined jug and sprayer This invention relates to an apparatus for containing liquids and for delivering such liquids both by pouring and by spraying. The apparatus has first and second containers defining respective first and second volumes for containing liquid, a closure for ... | 06/12/1990 |
| 4930684 | Closure strip and method for remanufacturing a toner cartridge and toner cartridge A toner cartridge, the cartridge having a first and second section. A toner material is located in the first section and maintained in the first section by a gasket. The gasket comprises a flexible substrate having attached to one surface thereof, a seali... | 06/05/1990 |
| 4928943 | Sheet feeding arrangement A sheet handling apparatus for copying and transporting sheets which comprises an image processing apparatus containing an image processing face, a sheet processing device disposed above said image processing face and operative to move toward and away fro... | 05/29/1990 |
| 4927051 | Multiple-product merchandising machine A multiple-product merchandising machine having a cylindrical drum mounted within a cabinet. The drum is divided into a plurality of horizontal shelves each of which is divided by a plurality of vertical walls into separate compartments from which the pro... | 05/22/1990 |
| 4927052 | Golf ball package, holder and dispenser A golf ball package, holder and dispenser with a cylindrical plastic molded base or sleeve, a replaceable plastic cover, and a deformable dispensing hole in the base side. The base is a one-piece plastic molding and the aperture is formed with an elliptic... | 05/22/1990 |
| 4927065 | Adjustable metering closure cap An adjustable metering closure cap which has an outer cap body which is adjustable along the length of a central metering post to provide more than one dispensing position. The inner periphery of the cap body cooperates with the outer periphery of the pos... | 05/22/1990 |
| 4927529 | Method and apparatus for separating knots A method of and apparatus for separating knots from a fibre suspension in the wood processing industry. A known problem in the prior art has been the quick wear of the screen surface of the knotter when the screen surface has been profiled. On the other h... | 05/22/1990 |
