...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5048402 | Apparatus for kneading and cooking Apparatus for kneading and cooking, comprises a bowl (1) removably mounted on a base (4) enclosing a drive mechanism (5) adapted to drive in rotation a working tool (8) such as a rotating scraper. Heating elements (10, 11) are provided. The bowl is in the... | 09/17/1991 |
| 5048403 | Oven for roasting pieces of baked ware A baking or roasting oven is provided with a transfer apparatus by which the pieces of edible material which is to be roasted, such as slices of white bread, soft wafers, etc., are fed into the oven and the roasted toasts are removed from the oven. The ov... | 09/17/1991 |
| 5048404 | High pulsed voltage systems for extending the shelf life of pumpable food products The present invention is directed to methods and apparatus for preserving fluid foodstuffs, and more particularly is directed to such methods and apparatus for extending the shelf life of perishable fluid foodstuffs such as dairy products, fruit juices an... | 09/17/1991 |
| 5048405 | Apparatus for manufacturing fibrous fish or shellfish "neriseihin" product An apparatus for manufacturing a fibrous fish or shellfish neriseihin product comprised mainly of a bundle of fibrous filaments, each of which includes protein or the like being linearly aligned and a thin surface layer covering over the bundle of the fil... | 09/17/1991 |
| 5048406 | Disposable/refillable smoke cartridge for gas barbecue grills A single-unit, ready-to-use device for flavoring food by smoking on a barbecue grill using gas or other fuels. This invention is a small, convenient cartridge containing small pieces of one of the aromatic woods, such as Hickory or Mesquite, etc., or any ... | 09/17/1991 |
| 5048407 | Grain husking and polishing machine The versatility of a grain husking and polishing machine to treat grains of different types is improved by providing a grain treatment chamber constituted by an abrasive rotor mounted on a fixed axis and a screen assembly surrounding said rotor and mounte... | 09/17/1991 |
| 5048408 | Bundling device The present invention is embodied as a device for bundling annular articles. This device utilizes a tape bundling machine which bundles articles with an adhesive bundling tape. A pressing table which pinches a top end of the tape is made detachable from a... | 09/17/1991 |
| 5048409 | Truss fabrication machine with joystick controls A truss fabricating machine includes a gantry movable along an X-axis and a pressing cylinder suspended from the gantry which is movable along the Y-axis allowing the pressing cylinder to be located above a joint in a wooden truss. The pressing cylinder p... | 09/17/1991 |
| 5048410 | Apparatus for securely clamping a transmission shaft of a transfer feed press during its shutdown A disk is fitted over a transmission shaft which delivers drive force from a press drive to feed bars. Engagement members are selectively engaged with and disengaged from teeth on the disk so that when engagement members are engaged with the disk, the mov... | 09/17/1991 |
| 5048411 | Calender, in particular for the production of packing sheets A calender, in particular for the production of packing sheets, comprises a heated cylinder of larger diameter and a cooled cylinder of smaller diameter. The larger diameter cylinder is rotatably supported in calender stands by bearings which are in fixed... | 09/17/1991 |
| 5048412 | Apparatus for processing semiconductor packages and the like In a press for cutting and bending the leads of semiconductor packages, a series of cams on a common drive shaft operate both the feeding mechanism and the working presses to achieve high speed operation, up to 500 cycles per minute, through accurate timi... | 09/17/1991 |
| 5048413 | Can crushing apparatus A platform is supported on uprights on a base and extends over the top of an open top waste receptacle arranged to be supported on the base. A can crushing compartment is supported on the platform and has a powered plunger arranged to crush cans in the co... | 09/17/1991 |
| 5048414 | Automatic stamper Described herein is an automatic stamper for imprinting desired letters or characters on documents, which is of the type including a printing block having a plural number of stamp units mounted around the circumference of a drum, a support frame rotatably... | 09/17/1991 |
| 5048415 | Stamp combination A stamp has a housing and a stem provided on the housing. A lid is provided on the stem. A holder is connected to the lid by a rod and is receivable in the housing. A number of grooves are formed in a bottom of a lower casing. An upper casing and the lowe... | 09/17/1991 |
| 5048416 | Multi-color printing apparatus In each of the pressure transferring sections of the printing device, a pair of cylinders, a screen positioned to pass over the cylinders and an inking device for supplying ink to the original printing stencil on the screen are arranged. An original print... | 09/17/1991 |
| 5048417 | Compact apparatus for screen preparation and printing and method of use A compact, multi-function screen printing table is provided which, with the exception of the emulsion rinsing step, permits all of the steps of a screen printing process to be carried out at a single, space-saving work station. The upper side of the table... | 09/17/1991 |
| 5048418 | Flexographic printing machine with a temperature-regulated printing-machine frame The flexographic printing machine with an impression cylinder mounted in a double-sided printing-machine frame and regulated to a constant operating temperature, and with several flexographic printing units, is characterized in that the printing-machine f... | 09/17/1991 |
| 5048419 | Bomblet fuze A fuze for an explosive projectile, particularly a submunition projectile (bomblet) which includes a first primary firing pin mounted in a housing for axial displacement in the longitudinal direction, and a detonation charge carried by a slide disposed in... | 09/17/1991 |
| 5048420 | Low energy fuse In the field of blasting, an improvement in means for transmitting an initiating signal (non-electrically) to an explosive device to remotely detonate same in accordance with a predetermined delay period of the type which comprises tubing in which there i... | 09/17/1991 |
| 5048421 | Combustible cartridge case base An ammunition cartridge comprises a combustible tubular case having a threaded open end having a uniform density of plastic resin at said end. A generally cup shaped head having a cylindrical peripheral wall provided with threads corresponding to said thr... | 09/17/1991 |
| 5048422 | Main propellant ignition liner for cased telescoped ammunition A cased telescoped ammunition in which a rigid liner fills the gap between the control tube and the metering tube. The liner comprises an energetic material which transfers the ignition stimulus from the control tube propellant to the main propellant. Ene... | 09/17/1991 |
| 5048423 | Cartridge case for telescoped ammunition round A cartridge case for a telescoped ammunition round has a generally tubular case wall and an axially extending elongate score line in said wall to provide pressure relief during firing of the round. The elongate score line has a radial depth less than the ... | 09/17/1991 |
| 5048424 | Tie replacer and method A vehicle for replacing selective ties in a road bed uses a conveyor system whereby ties may be picked up from on top of the rails. If the ties are to be used by the particular vehicle, they may be held by that vehicle. On the other hand, the conveyor sys... | 09/17/1991 |
| 5048425 | Ballast tamping unit for mounting on a tamping machine and a tamping tool therefor A ballast tamping unit for tamping ballast under two successive ties comprises a vertically adjustable tamping tool carrier and a set of two pairs of opposed vibratory and reciprocable tamping tools mounted on the tamping tool carrier, the pairs of tampin... | 09/17/1991 |
| 5048426 | Integrated conveyor system with transfer of trollies A conveyor system includes a power and free section transporting product carriers on power and free type trolleys and a monorail section transporting utility carriers about a fixed loop. The monorail system is connected to the power and free section to re... | 09/17/1991 |
| 5048427 | Railway truck assembly with side bearing height adjuster In a truck assembly for a railway vehicle wherein the assembly has a truck frame defined by opposed side frame sections and a transom section extending transversely between the side frame sections and substantially at mid-length thereof. A pair of wheels ... | 09/17/1991 |
| 5048428 | Clip-on work surface for a chair tablet A generally flat add-on desk surface is provided with hooks and stop members so that the work surface can be attached to a tablet on a tablet arm chair. Hooks and fixed stop members engage side edges of the tablet to hold the added surface in position and... | 09/17/1991 |
| 5048429 | Universal shelving A universal shelving unit is provided with opposite pairs of legs having a cross brace extending between each pair of legs. Support brackets are slidably mounted on the legs for supporting longitudinal braces extending between corresponding legs in each p... | 09/17/1991 |
| 5048430 | Method of stopping combustion in restrained combustion furnace in safety and combustion stop system therefor A method of stopping combustion in a restrained combustion furnace in which wastes to be incinerated are gasified and then burnt with an air amount lower than a theoretical combustion air amount, in case of emergency, the method including steps of shuttin... | 09/17/1991 |
| 5048431 | Method and apparatus for reducing sulfur dioxide content in flue gases A method and apparatus are employed to reduce the sulfur dioxide produced by the combustion of a sulfur-containing fule in a combustion chamber. Part of the combustion air is introduced into the combustion chamber with and closely adjacent the fuel. Anoth... | 09/17/1991 |
| 5048432 | Process and apparatus for the thermal decomposition of nitrous oxide A process and apparatus is presented for the reduction of nitrous oxide in the effluent from the combustion of a carbonaceous fuel. The process comprises raising the temperature of the effluent to a temperature of at least about 1700° F. The apparatus ut... | 09/17/1991 |
| 5048433 | Radiation enhancement in oil/coal boilers converted to natural gas A coal-gas fuel composition, for use in furnaces and boilers which have been converted from oil or coal to natural gas, an apparatus and a method for burning said composition are disclosed. Conversions of oil or coal designed boilers to natural gas for en... | 09/17/1991 |
| 5048434 | Apparatus for transplanting plants The present invention involves a method and an apparatus which utilizes a porous open cell structure in which seeds may germinate and plants root and be provided with appropriate nutrients and water until they are mature enough to be transplanted. At that... | 09/17/1991 |
| 5048435 | Device for a sewing machine having a zigzag stitching mechanism and an embroidering mechanism A switching device is provided for a sewing machine for switching operation of the sewing machine from a zigzag stitching to embroidering or vice versa. The switching device comprises a rotatable disc fixedly mounted on an output shaft of a stepping motor... | 09/17/1991 |
| 5048436 | Rotary looper for a lockstitch sewing machine A rotary looper for a lockstitch sewing machine, which can receive either a coreless thread package or a thread-wound bobbin. An upper bobbin-housing part is provided with two separate thread-tensioning elements and with respective thread-guide slots asso... | 09/17/1991 |
| 5048437 | Presser device in a sewing machine Presser device in a sewing machine, comprising a support provided with structure for holding and releasing a presser foot. The support is of a general parallelepiped shape and has two parallel grooves that are arranged on two opposing lateral faces of the... | 09/17/1991 |
| 5048438 | Sewing machine bobbin thread tension control device The feed dog (17) for the fabric in a sewing machine is provided with a spring-wire (21) bent and passing through a hole of a support (23). When the feed dog (17) is in its upper position, the support (23) abuts the plate (18), which lowers the end (24) o... | 09/17/1991 |
| 5048439 | Computerized sewing machine In a sewing machine, the sewing of letters or signs belonging to different typefaces is enable by individual selection, effected by means of a keyboard of ten keys, followed by selection of the desired typeface by actuation of a respective key. When the s... | 09/17/1991 |
| 5048440 | Sailing apparatus A sailing apparatus includes a sail having a batten which is positioned relative to the mast by a coupling member which serves to induce a camber in the batten and enhance and stabilize the draft or curvature of the sail. The coupling member can be instal... | 09/17/1991 |
| 5048441 | Composite sail mast with high bending strength A composite member features a unique ply geometry which contributes to improved bending strength. The composite is constructed of a plurality of plies, each comprising a fiber component disposed within a polymer matrix. An inner ply has a fiber component ... | 09/17/1991 |