Bizarre Patents
A coffin, for allowing inclination for display of a deceased person in a natural position.
PatentStorm News
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 |
| 6171531 | Method for simultaneous control of multiple accumulators A method for cascade, closed loop control of multiple operating parameters for an extrusion blow molding machine having multiple accumulators is disclosed. The method provides closed loop control of the ram back pressure during refill, along with the clos... | 01/09/2001 |
| 6120277 | Hybrid injection molding machine An electro-mechanical drive apparatus uses a single variable speed motor, two one-way clutches, a hydraulic pump stack and a hydraulic accumulator to provide both hydraulic power for linear motion axes and rotation of a driven element of an electromechani... | 09/19/2000 |
| 6086353 | Two-stage electric injection unit with rotating plunger The invention is directed to a two-stage, all-electric injection unit. More specifically, an injection unit in which the feed screw is preferably used only for plastication and the injection of the plasticized material is accomplished by a separate accumu... | 07/11/2000 |
| 6011376 | Method and apparatus for injection molding machine control A method and apparatus for verification of the linear position of a machine element driven by a motor is provided. The actual position of the element is detected and compared to an expected position. When the two positions differ from each other by more t... | 01/04/2000 |
| 5929583 | Method and apparatus for detecting aberrant motor operation in a plastics processing machine A method and apparatus for detecting an aberrant velocity of a motor used to drive an element in a plastics processing machine, such as an injection molding machine, for example. The velocity of the motor is detected by a first sensor and a machine parame... | 07/27/1999 |
| 5916602 | Injection molding machine having a hydraulically operated clamping system An electro-mechanical drive apparatus uses a single variable speed motor, two one-way clutches, and a hydraulic accumulator to provide both hydraulic power for the linear motion axes and rotation of the plasticizing screw in an injection molding machine. ... | 06/29/1999 |
| 5900260 | Accumulator head having a segmented barrel An accumulator head is convertible to alternate capacity ranges by providing a construction that has a segmented barrel with a matching ram in the purging system. More specifically, the accumulator barrel is divided into upper and lower segments so that t... | 05/04/1999 |
| 5895670 | Two-platen injection molding machine without tie bars A two-platen injection molding machine without tie bars has a platen fixed relative to the machine frame and a platen that moves relative to it, a traverse mechanism that operates the movable platen, a device for generating clamping force and a device to ... | 04/20/1999 |
| 5889201 | Characterization of fluid misting A method and apparatus for measuring a misting property of fluids, the method and apparatus simulating mist generation of fluids in machining processes. Fluid is supplied to mist generating means in an enclosure and energy input to the fluid by the mist g... | 03/30/1999 |
| 5874390 | Aqueous machining fluid and method An aqueous machining fluid admixture comprises water, a sulfurized oil and a water soluble salt of a dimercaptothiadiazole wherein the weight ratio of the sulfurized oil to the water soluble salt of dimercaptothiadiazole is in the range of from about 15:1... | 02/23/1999 |
| 5863567 | Two-stage electric injection unit for a molding machine The invention is directed to a two-stage, all-electric injection unit. More specifically, an injection unit in which the feed screw is preferably used only for plastication and the injection of the plasticized material is accomplished by a separate accumu... | 01/26/1999 |
| 5807517 | Preheating for an extruder An apparatus for heating and blending thermoplastic material prior to delivering the material into the barrel of an extruder. The apparatus, has an elongated housing which contains two intermeshing feed screws that are driven to rotate in the same directi... | 09/15/1998 |
| 5792486 | Retainer for the die pin in an accumulator head The accumulator of an extrusion blow molding machine is constructed so that the programming cylinder and die adjustment rod have axially aligned bores to receive a die pin retaining rod. The retaining rod holds the die pin in place by means of a lower spl... | 08/11/1998 |
| 5766057 | Centerless grinding machine Grinding and regulating wheels are carried on opposed feed slides on a machine base. A workrest is fixed to the base between the opposed wheels. Wheel dressers are mounted to cross-slides on the base, behind the wheels, independent of the feed slides. CNC... | 06/16/1998 |
| 5750158 | Preheating apparatus for an extruder An apparatus for heating and blending thermoplastic material prior to delivering the material into the barrel of an extruder has an elongated housing which contains two intermeshing feed screws that are driven to rotate in the same direction. Controlled h... | 05/12/1998 |
| 5739607 | Hybrid spindle bearing A machine tool spindle is supported at its spindle nose in a front, rolling element mechanical anti-friction thrust and radial support bearing means. The middle and rear end of the spindle is supported in a magnetic radial rear bearing and further support... | 04/14/1998 |
| 5738749 | Method of using a variable force compactor A head is positionable close to a supported composite material. A compactor on the head is movable relative to the head by a fluid actuator. A programmable valve means ports air into the actuator at several different pressures to provide variable compacti... | 04/14/1998 |
| 5716917 | Machining fluid composition and method of machining An aqueous machining fluid composition having improved resistance to microorganisms is provided. The fluid composition comprises in admixture: a) water, b) a water insoluble organic lubricant, c) a surface active agent selected from the group consisting o... | 02/10/1998 |
| 5711349 | Flow divider with diverter valve The present invention provides a dual flow divider for use on an extruder. The flow divider is configured to separate the melt stream received from the extruder at a central entry into two flow channels, the respective channels being formed as nearly to i... | 01/27/1998 |
| 5710372 | Method of analysis for aqueous fluids A simple, convenient method is provided for measuring the concentration of a constituent of an aqueous fluid composition (e.g. aqueous machining fluid composition) and for measuring total alkalinity thereof. The method comprises the steps of a) contacting... | 01/20/1998 |
| 5669751 | Transport system for workpieces A machine guard has an opening with a detachable door; i.e., sliding tracks and hinges are not used for door support. When an outside loader arm and its part grippers move to the door, the door is unlatched from the guard and attached to the arm. The arm ... | 09/23/1997 |
| 5667349 | Method of making pull tabs and lubricant therefor An improved process for making metallic pull tabs is provided. In accordance with the improved pull tab making process comprising the steps of feeding a strip of metal into a pull tab forming die and forming the metallic pull tab the step of forming the p... | 09/16/1997 |
| 5645873 | Electromechanical drive assembly for an accumulator head An accumulator head for a blow molding machine uses an electromechanical drive assembly for the purging and programming functions. The purging actuator of the drive assembly includes a ball screw and nut assembly in which the ball screw is rotated by an e... | 07/08/1997 |
| 5645868 | Drive apparatus for an injection unit An electro-mechanical drive apparatus uses a single motor and three one-way clutches to provide both injection and extruder functions in the injection unit of an injection molding machine. When engaged, the first one-way clutch couples the feed screw to t... | 07/08/1997 |
| 5634953 | Extruder venting system with vacuum shuttle valve The present invention provides a barrel venting system for use on an extruder. Gases that are generated during plasticizing are drawn by vacuum through a filter to remove plastic particles before the gas is exhausted to the atmosphere. To enable cleaning ... | 06/03/1997 |
| 5620646 | Method for cooling electrical components in a plastics processing machine A cooling method that involves circulating a liquid coolant through the motor housings and mounting surfaces for electrical/electronic components, such as the electric motors and associated electronic drives, in electric plastic processing machines. Speci... | 04/15/1997 |
| 5616350 | Dual flow divider with diverter valve The present invention provides a dual flow divider for use on an extruder. The flow divider is configured to separate the melt stream received from the extruder at a central entry into two flow channels, the respective channels being formed as nearly to i... | 04/01/1997 |
| 5601773 | Co-injection machine A pair of injection units and a common co-injection manifold are carried on a slide mounted a machine base. The machine base carries a mold element, and the injection units and manifold are moved in unison with respect to the mold element. The injection u... | 02/11/1997 |
| 5595218 | Valve construction A solid valve spool is split in two, by cutting through its center land diameter. A drill rod spacer is machined to length and inserted between the spool pieces to establish a spool assembly having a precise land width. The spool pieces and spacer are bia... | 01/21/1997 |
| 5560942 | Apparatus for sizing composite tows An apparatus for forming composite tows of uniform width comprises a tow tensioner mechanism which carries a reel having a length of tow of non-uniform width, a tow sizing unit, a drive roller unit and a tow winding device. A single tow is fed from the te... | 10/01/1996 |
| 5544556 | Reversibly rotatable chuck with internal cam for shifting work axis A chuck body has an internal cam unit eccentrically mounted within antifriction bearings, and the cam unit includes a workpiece gripper. A radial pin extends through the chuck body into a peripheral slot of the cam unit. When rotating in a first rotary di... | 08/13/1996 |
| 5538415 | Open frame injection molding machine An injection molding machine is provided with an open frame specifically designed to avoid angular displacement of the stationary platen during the molding process. More particularly, the stationary platen and the supporting frame are configured to mainta... | 07/23/1996 |
| 5536282 | Method for producing an improved vitreous bonded abrasive article and the article produced thereby A method is provided that produces grinding wheels which exhibit improved burn reduction or prevention, lower power consumption and increased penetration of metalworking fluid into the grinding zone in high metal removal rate grinding operations such as f... | 07/16/1996 |
| 5535638 | Antifriction screw drive A screw and nut have intermeshed helical threads which may be of a form selected from a variety of shapes; for example, a buttress thread. A ball track is formed by cooperating grooves in opposing flanks of the screw and nut threads, and a circuit of ball... | 07/16/1996 |
| 5523640 | Liquid cooling for electrical components of a plastics processing machine A cooling system which circulates a liquid coolant through motor housings and mounting surfaces for electrical/electronic components. This system is particularly cost effective where there are multiple electric motors and associated electronic drives, as ... | 06/04/1996 |
| 5512191 | Aqueous functional fluid having improved resistance to micro-organisms An aqueous functional fluid composition free of formaldehyde and formaldehyde producing agents, more especially an aqueous metalworking fluid composition, having improved resistance to attack by microorganisms is provided. This fluid comprises a) water, b... | 04/30/1996 |
| 5494269 | Vibration damper A workpiece is clamped to a machine table while being machined, but a cantilevered portion of the workpiece is subject to vibrations. The cap of a vibration damping unit is supported on the machine base and spring-loaded upwardly against the workpiece. A ... | 02/27/1996 |
| 5471900 | Method for turning a workpiece In a two-axis turning machine, the cutting tool unit machines a first diameter of a workpiece portion of barstock extending from a main spindle chuck. A special subspindle chuck rotating in the same direction advances axially, grasps the workpiece as it i... | 12/05/1995 |
| 5469038 | Method for compensating for efficient variations in an electric motor A method for compensating for variations in the operating efficiency of electric motors used in plastic processing machines. The current to the motor is continually monitored during all periods of operation to identify variations in the motor's actual eff... | 11/21/1995 |
| 5469031 | Dynamic braking for electric motors in a plastics processing machine A dynamic braking system for the electric motors in an injection molding machine uses the electric heater bands on the barrel of the injection unit as resistors to dissipate the energy generated by the electric motors during an emergency stop. This system... | 11/21/1995 |
