"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7695268 | System and method for manufacturing concrete blocks A system and method for manufacturing an uncured concrete block using the dry-cast manufacturing process includes a mold box having a pair of side walls, a pair of side plates, an open top side and an open bottom side defining a mold cavity. One or more end liners a... | 04/13/2010 |
| 7425124 | Device and method for compression moulding of plastic articles A device for compression moulding of plastic objects, comprising a plurality of compression-moulding units (9), each of which comprises a core mould element and a moulding cavity (2) filled by dropping into it a dose of plastic material; each moulding ... | 09/16/2008 |
| 7367791 | Device for producing annular or arcuate magnet A device capable of producing an annular magnet or arcuate magnet with excellent dimensional accuracy and magnet performance, of which the mass is not greatly scattered. The device for producing the annular magnet, for example, includes a preforming section for obta... | 05/06/2008 |
| 7364420 | Rotary press for making tablets Rotary press for making tablets with a rotor, which rotor exhibits a die plate and guides for the upper and lower punches, a rotor shaft and an electric drive motor, which electric drive motor rotates the rotor shaft and exhibits a runner and a stator, wherein the r... | 04/29/2008 |
| 7361301 | System and method for consolidating powders This invention relates to a system and method for consolidating particulate material, such as particulate material, in order to achieve at least ninety-five percent (95%) or even ninety-eight percent (98%) of its maximum theoretical density using a relatively long d... | 04/22/2008 |
| 7360483 | Device for the guidance of lower rams A device for the guidance of lower rams across the lower-ram head in a rotor-type rotary press in the area of a filling device wherein a charging cam is disposed between an ejector cam which precedes as viewed in the direction of production and a proportioning cam a... | 04/22/2008 |
| 7252495 | Press-molding mold A press-molding mold includes a first mold part (10), a second mold part (20), a bushing (40), a first latching pin (50) and a second latching pin (70). The second mold part (20) defines a longitudinal central axis (21 | 08/07/2007 |
| 7229267 | Tablet press A tablet press with a rotary turret that is driven by a direct drive is described. The rotary turret can be driven by a simple, inexpensive drive having low vibrations, which reduces the stress on the mechanical components and the drive train of the press. ... | 06/12/2007 |
| 7175405 | Compression molding machine A compression molding machine capable of maintaining dies parallel while precisely clamping work pieces and improving quality of molded products and productivity. The compression molding machine includes a fixed platen; a movable platen; a fixed die being held by th... | 02/13/2007 |
| 7132072 | Method for producing multi-cored molded article To manufacture a multi-core press-coated molded product efficiently and in a single step from molding materials, namely, powder or granular particles, a punch has been devised that is characterized in that the punch, consists of a center punch whose tip portion is s... | 11/07/2006 |
| 7118367 | Rotor for a tablet press A rotor for a tablet press including an upper-ram receptacle for the upper rams and a lower-ram guide for the lower rams of the tablet press, as well as a retainer plate having a series of die-bores which are oriented towards the upper and lower rams wherein the ret... | 10/10/2006 |
| 7021916 | Press and mould for precast cementitious article Disclosed herein is a press and mould apparatus for moulding cementitious articles comprising a precast mould and a press head having a pressing surface and being moveable between precast mould engaging and disengaging positions, wherein the pressing surface compris... | 04/04/2006 |
| 6972105 | Rotary tablet press A rotary tablet press comprises a rotary system constituted by a turret and a drive shaft arranged in a housing for rotation of the turret. The turret includes a die table and a number of punches are guided in the turret. The turret is connectable to the drive shaft... | 12/06/2005 |
| 6941860 | Method of briquetting metal chips and briquetting press A method and a briquetting press for briquetting metal chips, wherein stable briquettes/pressed component are produced. The actual length (Lact) of the pressed component is obtained by applying pressure (Pmax/Preq) using at least one... | 09/13/2005 |
| 6926511 | Rotary-table press with removable punches The invention relates to a rotary press with anti-rotation secured shafts and exchangeable punches attached thereto. The rotary press comprises a punch turn which is universally ensured with the use of anti-rotation secured punch shafts, meaning, not only with rotat... | 08/09/2005 |
| 6890168 | Biaxial press molding system A biaxial press molding system includes a cam apparatus having cams facing each other, and a biaxial press apparatus, disposed between the cams and installed to be capable of sliding contacting the cams, for forming a biaxial pressure to a molding object by converti... | 05/10/2005 |
| 6881048 | Apparatus for automatically loading powder material into a mold The present invention is a method of loading a desired amount of powder material into a mold which comprises a tubular body having a bore extending therethrough to define a mold cavity. The method comprises the steps of: providing the mold with a lower press core fi... | 04/19/2005 |
| 6827567 | Powder compression molding method and apparatus and dry cell Powder mixture is supplied into a die under a state that a center pin is located lower than the top surface of the die, after which the center pin is lifted up to a given molding position where an annular molding space is defined between the center pin and the die. ... | 12/07/2004 |
| 6805545 | Molding and packaging apparatus An apparatus that receives packaging containers and a mixture of powdered chemicals and compresses the powder into the containers at a pressure sufficient to form a solid of the powder yet not so high as to rupture the container. The apparatus is computer controlled... | 10/19/2004 |
| 6787082 | Compressing mallet with coating treatment The punch coated with Cr-Dopé-N is advantageous as a punch for preparing tablets containing an acidic substance or an adhesive substance and is excellent in corrosion resistance and releasing property. ... | 09/07/2004 |
| 6761554 | Rotary tableting press A rotary tableting press includes a turret with upper and lower carousels in which upper and lower punch assemblies are removably supported. The upper and lower punch assemblies include punch casings having a central opening and a punch slidably received in the cent... | 07/13/2004 |
| 6676863 | Rotary tablet press and a method of using and cleaning the press The rotary tablet press comprises a housing, in which a compression unit (14) is detachably mounted. The compression unit (14) comprises a die table (15) with punches (17, 18), a feeding device for the supply of material to be compressed into the dies (16... | 01/13/2004 |
| 6595767 | Rotary compression press A rotary compression press for cylindrical compacts, especially tablets, comprising a rotatably driven rotor including a die-plate and an upper and a lower ram guide for upper and lower rams cooperating with the die bores, and a pressure station with an u... | 07/22/2003 |
| 6558594 | Powder compression molding method for producing cathode pellets for dry cells Powder mixture is supplied into a die under a state that a center pin is located lower than the top surface of the die, after which the center pin is lifted up to a given molding position where an annular molding space is defined between the center pin an... | 05/06/2003 |
| 6361306 | Tool assembly for the manufacture of ring-shaped compacts using a rotary compression press A tool arrangement for the manufacture of ring-shaped compacts using a rotary compression press wherein the rotary compression press has a rotatably driven die-plate having die holes in which die inserts are mounted, and upper and lower rams aligned towar... | 03/26/2002 |
| 6361305 | Rotary tablet press A rotary tablet press, with a die plate rotatably mounted in a housing, which comprises guides for the upper and lower punch, whose position is controlled by cam disks rigid with the housing, and with an upright drive shaft which is arranged below the die... | 03/26/2002 |
| 6361302 | Rotary tabletting machine A rotary tabletting machine with a housing, with a matrix disk in the housing, which in an upper and a lower receiving section guides the upper and lower punch, with an upper and lower cam carrier ring rotationally rigid relative to the housing, for contr... | 03/26/2002 |
| 6227836 | Apparatus for manufacturing tablets A method and an apparatus for manufacturing tablets of moist powder which is produced by adding an additive agent such as an excipient or a binder to medical ingredients, further adding a solvent such as water, ethanol or the like, and kneading the mixtur... | 05/08/2001 |
| 6210146 | Friction component manufacturing apparatus and method To provide a friction component of a multilayer structure in which each layer can be formed so as to have a specified thickness, as well as its manufacturing apparatus and method. A side plate 3 having a void 3a of a specified depth formed therein is prov... | 04/03/2001 |
| 6165400 | Compacted-powder opposed twin-helical gears and method A multiply-acting powder metal press is disclosed for making green form double helical gear compacts. The press has inner and outer lower punches, and an upper, outer punch. The upper and lower outer punches have left hand and right hand external helical ... | 12/26/2000 |
| 6106262 | Press simulation apparatus An apparatus for reproducing compaction and ejection events in a plurality of press machines is disclosed. Each press machine has at least one die opening wherein a compound is placed to be compressed at least once between upper and lower punches sliding ... | 08/22/2000 |
| 6060008 | Process for producing friction linings In a process for producing friction linings, a friction material is produced in granular form in a mixing reactor (1). The granular material is pressed for up to 120 seconds together with lining bases in press moulds (3) to produce friction linings. Immed... | 05/09/2000 |
| 6056532 | Process for manufacturing the head surfaces of dies cooperating with cylindrical pressure rollers for rotary presses and die manufactured according to this process A process for manufacturing head surfaces of dies cooperating with cylindrical press rolls for rotary presses. To avoid the high Hertzian stresses occurring dies for rotary presses during the interaction of the die head and the press roll, the present inv... | 05/02/2000 |
| 6050798 | Rotary tablet press A rotary tablet press has a rotating mold table and top and bottom plungers, which can move reciprocally in plunger guides, coaxially with the molds. The reciprocating motion of at least the bottom plungers is cam-controlled and these plungers are acted u... | 04/18/2000 |
| 5928590 | Compression method for powder of granular material A method for compressing powder or granular material by a rotary tabletting machine (1), includes an initial step in which an opening (2) is filled with material to be compressed, a compacting step (C), in which a load is gradually applied to the material... | 07/27/1999 |
| 5910324 | Device for the manufacture of tablets The invention relates to a device for the manufacture of tablets or compacts with at least two compacting tools which in each case can be moved in relation to one another and at least one template interacting with these and with a filling arrangement to f... | 06/08/1999 |
| 5882696 | Tool-holder for a tablet making machine A stamping device for a tablet making machine includes a pair of coaxial stamping heads (1) which enter, on opposing faces, a matrix carried by a matrix plate (2) formed around a rotary turret (3), a pair of punches (4) which are guided by respective hole... | 03/16/1999 |
| 5762978 | Batching device for tablets making compression machine The device can be applied to compression machines including a turret (1), rotating around a vertical axis and fitted with a series of die holes (3) aimed at being filled with powder of granular material; pairs of punches (5,6), upper and lower punches res... | 06/09/1998 |
| 5698149 | Phased split die This invention relates to a device to compact parts with an undercut out of powder metal, including a pair of dies linearly moveable relative to one another and then phased, and an associated linearly displaceable pair of punches to produce said parts wit... | 12/16/1997 |
| 5698238 | Rotary tabletting machine A rotary tabletting machine, for compressing powder or granular material, includes a rotating turret (3) supporting a ring-shaped member (5) in which openings (2) are made to be filled with the powder or granular material, with pairs of punches moved by d... | 12/16/1997 |