...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 |
| 7391336 | Anomaly monitoring system for molding machine Each of molding machines has a conductive line whose electrification state changes as a result of anomalous stoppage. An anomaly monitoring system includes detection sections provided in the conductive lines so as to detect the electrification states thereof; a data... | 06/24/2008 |
| 7364683 | Rotary automatic transfer rail for injection molding Methods and assemblies related to a rotary automatic transfer rail for injection molding are disclosed. In one aspect, the invention includes a mold assembly. The mold assembly may include first, second, and third mold plates. The mold plates may be positioned gener... | 04/29/2008 |
| 7303703 | Nano-imprint system with mold deformation detector and method of monitoring the same A system for nano-imprint with mold deformation detector is disclosed for real-time monitoring of the deformation of the mold. An electrostatic plate capacitor is embedded in the mold, serving as the deformation detector. The capacitor includes two opposite metal fi... | 12/04/2007 |
| 7293430 | Press molding apparatus and press molding method of optical element A press molding apparatus includes upper and lower molding dies each having a molding surface facing each other, and a driving device which moves at least one of the upper and lower molding dies in a vertical direction so that the upper and lower molding dies are op... | 11/13/2007 |
| 7290997 | Plant for manufacturing of tablets A plant for the manufacture of tablets, comprising a rotary tabletting machine, a control cabinet which houses a machine computer, a control desk which preferably is mobile and houses a service computer to operate functions of the tabletting machine and store data i... | 11/06/2007 |
| 7220118 | Horizontal multi-material molding machine A horizontal multi-material molding machine includes a rotary table having a rotation axis center in a horizontal direction, a multi-material molding metal mold mounted on the rotary table, injection plunger units disposed to advance to and retreat from the multi-ma... | 05/22/2007 |
| 7191684 | Mechanism and method for rotating a machine tool element A rotate mechanism includes a fixed frame unit, a rotating frame unit, a first bearing, and a prime mover. The rotating frame unit is rotatably coupled to the fixed frame unit and rotates about an axis. The rotating frame unit includes a first surface for receiving ... | 03/20/2007 |
| 7179075 | Vertical injection molding machine A vertical injection molding machine designed to move up/down a large weight by a toggle link mechanism so as to perform mold opening/closing. In a foreign matter detection region where a mold opening/closing servo-motor is subjected to speed feedback control during... | 02/20/2007 |
| 7175788 | Device and method for removal of preforms A device for fracturing a defective preform for use in blowmolding is claimed. The preform has head end and a tail end and the device comprises a tube with walls defining a cavity for accepting the defective preform while the defective preform is on a core of an inj... | 02/13/2007 |
| 7104310 | Mold making machine with separated safety work zones An automatic molding machine has different operational molding stations in which at least two different safety zones are provided for the different molding stations. Such an automated machine includes a mold flask assembly including a drag flask, a cope flask and a ... | 09/12/2006 |
| 7104681 | Method and device to determine the thermal diffusivity of materials, such as thermoplastic polymers, during non-stationary heat transfer processes A measurement cell for an injection machine has a cavity formed between two removable and exchangeable internal metallic blocks equipped with a cooling and heating system. The internal metallic blocks are laterally isolated from bodies that hold the blocks by a spac... | 09/12/2006 |
| 7088069 | Load monitoring method for motor-driven injection molding machine Load of each motor-driven drive section of an injection molding machine is monitored in order to obtain an average load level of the drive section for each molding cycle. A cycle extending time or a cycle shortening time necessary for decreasing or increasing the av... | 08/08/2006 |
| 7070729 | Pressware die set with product ejectors at outer forming surfaces An improved pressware die set includes mechanical ejectors for removing formed product from the punch. A preferred embodiment includes rocker-style ejectors free from edges or other asperities which may tend to snag and mar the product during the production process.... | 07/04/2006 |
| 7052261 | Device for melting and remolding crayons A device suitable for use by children which recycles broken crayons and other materials by melting and molding. A stationary melting pot securely retains the charge material during heating. A housing substantially surrounds the melting pot and an associated mold cha... | 05/30/2006 |
| 7041242 | Mold-clamping control method for injection molding machine The value of a monitor item is detected in a monitor region predetermined in relation to a mold closing operation during the course of a mold clamping step. Emergency processing is performed when the detected value exceeds a threshold value. There are preset an anom... | 05/09/2006 |
| 7033159 | Method for part-forming machine having an in-mold integrated vision system A part-forming machine having an in-mold integrated vision system and method therefor for verifying the presence, absence and quality of molded parts therein. The image of the mold and/or part is acquired at a substantially parallel angle relative to the image-captu... | 04/25/2006 |
| 7029257 | Apparatus and method for molding simultaneously a plurality of semiconductor devices Provided is a molding apparatus for molding simultaneously a plurality of semiconductor devices. The molding apparatus includes a mold, a plurality of plungers, and a plunger block. The mold is prepared to mold a plurality of semiconductor devices. The plurality of ... | 04/18/2006 |
| 7014453 | Machine having sensors for controlling molding operation A mold and molding machine having a sensor and a control circuit for monitoring operation of the molding machine during a molding operation. The molding machine may be a blow molding machine that is used in an insert molding operation wherein a preformed insert is p... | 03/21/2006 |
| 7001169 | Machine for processing synthetic materials An injection moulding machine with a vertically movable mould-clamping plate, an electrical drive motor for the movable mould-clamping plate. A control unit for the drive motor, a machine control unit and a safety device to prevent unintentional movement of the mova... | 02/21/2006 |
| 6969244 | Powder compacting apparatus and method of producing a rare-earth magnet using the same The present invention aims to prevent heating and ignition of a material powder of a rare-earth alloy while reducing the oxygen content thereof so as to improve the magnetic properties of the rare-earth magnet. A rare-earth alloy powder is compacted by using a powde... | 11/29/2005 |
| 6969246 | Forming station and process for twin sheet thermoforming A forming station for a thermoformer in which the lower platen is lowered and moved laterally on linear bearings on the machine frame after two sheets are formed in side by side mold-plug assist tool sets so as to align the respective molds and formed sheets. The fo... | 11/29/2005 |
| 6902384 | Apparatus for melt spinning and cooling a group of filaments An apparatus for melt spinning and cooling a group of filaments comprising a spinning device with an annular spinneret and a cooling device arranged below the spinning device. The cooling device comprises a holder that is connected to a coolant dispersing head. The ... | 06/07/2005 |
| 6833092 | Method for controlling motor-driven injection molding machine In a method for controlling a motor-driven injection molding machine which includes a drive motor provided at a drive section, a load level of the drive section for each molding cycle is obtained in order to determine whether the load level has entered an overload r... | 12/21/2004 |
| 6821102 | Drive control apparatus for an injection molding machine A drive control apparatus is used in an injection molding machine in order to drive and control a servomotor for moving a movable member. Among a plurality of functional sections which constitute a servo circuit connected to the servomotor, at least one functional s... | 11/23/2004 |
| 6776598 | Semiconductor chip molding apparatus and method of detecting when a lead frame has been improperly positioned in the same A semiconductor chip molding apparatus includes an upper platen including an upper mold, a lower platen including a lower mold having a molding block configured to receive a lead frame, a controller, and an electrical detector for forming an electrical circuit betwe... | 08/17/2004 |
| 6755635 | Apparatus for protecting mold in injection molding machine There is disclosed a mold protection apparatus of an injection molding machine in which a cross head position and movable mold position are read from a correspondence table, a calculator calculates a thrust force limit value set with respect to a movable mold, and a... | 06/29/2004 |
| 6669877 | Malfunction-detecting method in injection molding machines This invention provides a method which makes it possible to reliably detect malfunctions during the ejecting step without rendering the injection molding machine more complicated. An ejector pin is incorporated in the movable die. This ejector pin is conn... | 12/30/2003 |
| 6652785 | Operatorless extrusion system An extrusion system controller monitors the movement of an extrudate using a motion detector. Upon detection that the extrudate is no longer moving along its path of movement at the appropriate speed, the controller causes power interruption to the extrus... | 11/25/2003 |
| 6592355 | Part-forming machine having an in-mold integrated vision system and method therefor A part-forming machine having an in-mold integrated vision system and method therefor for verifying the presence, absence and quality of molded parts therein. The image of the mold and/or part is acquired at a substantially parallel angle relative to the ... | 07/15/2003 |
| 6582632 | Injection molding machine An injection molding machine for plastic materials, the operation of which is governed by continuous monitoring of at least one measurement parameter, wherein there is provided a control which outputs a signal upon failure of a sensor which detects the me... | 06/24/2003 |
| 6520761 | Protection apparatus for an injection molding machine A protection apparatus for an injection molding machine includes an overrun detection mechanism and a control section. The overrun detection mechanism includes an element to be detected which is attached to one of a movable member of a movable mechanism a... | 02/18/2003 |
| 6398536 | Molded product ejection checking device A torque waveform of an ejecting device when a molded product is normally ejected is memorized in a memory device 12 as a normal waveform. A sampling device 11 samples a torque waveform of the ejecting device at predetermined time intervals to produce a d... | 06/04/2002 |
| 6379140 | Apparatus for forming an article An apparatus and method for semi-automatically forming a sheet of material into an article, such as a flower pot cover, is provided. The apparatus includes a male die, a female die, a presence sensing assembly, and a control assembly. The presence sensing... | 04/30/2002 |
| 6296466 | Apparatus for forming an article An apparatus and method for semi-automatically forming a sheet into an article, such as a flower pot cover, is provided. The apparatus includes a male die, a female die, a presence sensing assembly, and a control assembly. The presence sensing assembly is... | 10/02/2001 |
| 6287104 | Mechanical safety cover interlock for an injection-molding machine A mechanical safety cover interlock for an injection-molding unit has a protective device that covers the mold clamping area. As soon as the protective device is moved from its protecting position, a sensor for an auxiliary circuit emits an electrical sig... | 09/11/2001 |
| 6276916 | Failsafe shooting pot actuator for an injection molding machine A failsafe device, or pressure relief mechanism, for a shooting pot actuator in an injection molding machine. The shooting pot actuator has a multiple pusher rods mounted on one, or more, plates. Moving the plate holding the pusher rods depresses the shoo... | 08/21/2001 |
| 6268005 | Sheeter wire apparatus An improved sheeter wire device providing constant tension on a feeder spool even during wire breakage. A constant speed motor draws wire across the face of the sheeter while a drag motor maintains constant tension on the wire. A pair of pinch rollers pro... | 07/31/2001 |
| 6200122 | Thermoforming apparatus with improved press A thermoformer apparatus having a press driving upper and lower platens by respective pairs of servo motors, each pair driving four toggle linkages to stabilize the platen against the forming pressures. Linear bearings are provided on four corner posts fo... | 03/13/2001 |
| 6183234 | Apparatus for forming an article An apparatus and method for semi-automatically forming a sheet of material into an article, such as a flower pot cover, is provided. The apparatus includes a male die, a female die, a presence sensing assembly, and a control assembly. The presence sensing... | 02/06/2001 |
| 6164947 | Safety apparatus for a vertical injection molding machine A safety apparatus for a vertical injection molding machine. The safety apparatus includes an abnormality detection section for detecting an abnormal condition of a transmission belt, and a stopper mechanism including an engagement rod having a plurality ... | 12/26/2000 |