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| Number | Title | Issue Date |
| 7350454 | Cylinder unit for mounting on a cross member and/or a table of a device or machine for the deformation of workpieces A cylinder unit for mounting on a machine for the deformation of workpieces includes a cylinder block and a pressure plate which is arranged on the surface of the cylinder block which faces away from the fastening surface, wherein a plurality of pistons each having ... | 04/01/2008 |
| 7165437 | Mechanical press device The invention provides a mechanical press apparatus for both single and double uses which can press mold a large-sized blank at a high pressure by employing a single action use aspect while being of a double action type. In a mechanical press apparatus provided with... | 01/23/2007 |
| 6634205 | Hydraulic control method for hydraulic press A tryout of a metal mold for a mechanical press suitable for mass production is carried out with a hydraulic press in accordance with the same motion curve as that of the mechanical press so as to reduce metal mold corrections at a job site as much as pos... | 10/21/2003 |
| 6279370 | Hydraulic arrangement for performing a secondary operation in a pressing tool for sheet metal forming The invention relates to an arrangement for performing a secondary operation in a pressing tool for sheet metal forming comprising a primary cylinder/piston unit (1) arranged to pressurise an operating fluid upon closing of said pressing tool for performi... | 08/28/2001 |
| 6253672 | Hydraulic platen press A press has a fixed platen, a movable platen displaceable toward and away from the fixed platen, a plurality of low-pressure cylinders braced against the movable platen and pressurizable to move it toward the fixed platen, and a plurality of medium-pressu... | 07/03/2001 |
| 6152027 | Refuse and grinding system A refuse and grinding system. The system will contain a hydraulic fluid supply for supplying a hydraulic fluid and a first compactor adapted for containing a refuse. The first compactor will have a first ram assembly and a first hydraulic valve, with the ... | 11/28/2000 |
| 6035776 | Refuse and grinding system A refuse and grinding system. The system will contain a hydraulic fluid supply for supplying a hydraulic fluid and a first compactor adapted for containing a refuse. The first compactor will have a first ram assembly and a first hydraulic valve, with the ... | 03/14/2000 |
| 5809875 | Apparatus for crushing scrap vehicle wheels Apparatus for crushing scrap vehicle wheels includes a frame constructed from three radially disposed rectangular tube beams each mounting a hydraulic cylinder and crushing head which converge and operate radially to deform a scrap wheel supported at the ... | 09/22/1998 |
| 5727457 | Hydraulic press for forming door frames and panels or the like A rigid frame hydraulic press that includes a frame on which are mounted a series of movable columns that are used for vertical pressing and an end column that is used for horizontal pressing. The end column has a complementary support in its lower part l... | 03/17/1998 |
| 5704284 | Apparatus for automatically applying equilized pressure to a rotary cutting die An equalizer assembly that integrates into the die cutting station of a press and comprises two hydraulic actuators, each of which interacts with one of the jackscrews of the press to create an internal hydraulic pressure. The internal pressure of a first... | 01/06/1998 |
| 5640877 | Hydraulic piercing and stripping assembly The invention relates to a press driven work tool module comprising a power unit and a work unit. Each unit comprises a fluid filled cylinder, a piston for reciprocation therein, and a piston rod. Hydraulic fluid within the power stroke displacement space... | 06/24/1997 |
| 5637184 | Improved-efficiency welding device in a plastic bag production machine An improved-efficiency welding device in a plastic bag production machine, of the type including an upper welding bar and a lower welding bar, at least one of which is driven with reciprocating vertical movement between a position separated from The plast... | 06/10/1997 |
| 5632199 | Compactor Hydraulically activated compactor with internal storage and integrated removable container-lift, having automatic angularity control for the platen bar, forming bales of waste and refuse material.... | 05/27/1997 |
| 5601017 | Device for parallel guiding of a ram of a hydraulic press A device for parallel guiding a reciprocating ram of a hydraulic press has a ram of a rectangular contour and a drive unit with hydraulic cylinders for reciprocating the ram. The ram has first and second opposite lateral walls.... | 02/11/1997 |
| 5573366 | Hydraulic device with synchronously operating jacks A hydraulic device comprising at least two cylinder-piston assemblies. Each of the assemblies are of the double-action type with a front and rear chamber on either side of a piston. The chambers are connected in series in a hydraulic control circuit such ... | 11/12/1996 |
| 5568766 | Method for controlling the drive for a hydraulic press having a plurality of operating phases A method for controlling the drive of a hydraulic press and an associated device for carrying out the method are proposed, the piston/cylinder unit belonging to a press ram being driven via several hydraulic devices connected in series. Depending on the o... | 10/29/1996 |
| 5410946 | Hydraulic actuator A hydraulic actuator including a single cylinder body which defined therein a pressure chamber in which a first piston with a piston rod and a second piston with a piston rod are independently movably inserted, a first working member secured to the first ... | 05/02/1995 |
| 5323697 | Radial press having two press yokes movable radially against one another In a radial press having a press axis (A) , a plurality of outer cam surfaces (1, 2, 3, 4) at an angle to one another are grouped in two press yokes (18, 19) which are driven radially against one another. The planes of symmetry of the cam surfaces (1-2 an... | 06/28/1994 |
| 5307572 | Ironing machine with a differential-pressure regulating device An ironing machine with a computer-assisted control device for the advancing pressure and the pressing time between an upper and a lower shaping board (10, 16) which are movable relative to one another both vertically and horizontally, the ironing machine... | 05/03/1994 |
| 5303641 | Method for checking the driving and control system of hydraulic punch brakes A method for checking the driving and control system of a hydraulic punch press is provided which comprises the steps of delivering a stop order signal to the driving device, sensing the position of the sliding punch member along its stroke and comparing ... | 04/19/1994 |
| 5279215 | Machine for crushing oil filters A machine for crushing oil filters and collecting the oil therefrom. The machine has a piston and cylinder assembly for moving a crushing member into a crushing chamber to crush an oil filter. A control valve controls the supply of hydraulic fluid to the ... | 01/18/1994 |
| 5129318 | Revolving recycling compactor having multiple containers A refuse compacting system including a plurality of containers, each of the containers being substantially square and when placed in groups of four, forming four compacting stations, adjacent one another for occupying a reduced amount of space. In additio... | 07/14/1992 |
| 4896594 | Drawing installation for a press A drawing installation for a press which has to produce the holding force for the counter-holding during the drawing. The drawing ram displaces the sheet metal part and the sheet metal holder against the holding force to be produced by the drawing install... | 01/30/1990 |
| 4802836 | Compaction device for concrete block molding machine A compaction device for a concrete block molding machine, comprising a mold formed with cells opened at the top and at the bottom, and filled with a no-slump concrete mix. The mold freely rests either on a pallet or vibrating table, which acts as bottom w... | 02/07/1989 |
| 4617862 | Portable bin transfer system A bin transport system for a fiber baling apparatus utilizes a plurality of portable upwardly opening bins which have openable bottoms. The bins are transported from a plurality of fiber filling stations to a single compression station by a four-part tran... | 10/21/1986 |
| 4492154 | Overload protection in presses An overload protection for presses in which the working stages are protected against overload by balance-like overload pressure-responsive devices; to further protect the press balance-like adding pressure-responsive devices are also used whose operating ... | 01/08/1985 |
| 4341510 | Multiple press for ceramic moldings A multiple press having a plurality of molds for forming ceramic moldings. The press includes a base frame on which a movable mounting plate is mounted. The movable mounting plate carries a plurality of mold halves. The base frame also includes a fixed mo... | 07/27/1982 |
| 4018150 | Open-sided press In a press which comprises an upper frame provided at the forward end thereof with a main cylinder, a lower frame opposed to said upper frame across a vertical spacing and a shank frame attached integrally to the ends of said upper and lower frames so as ... | 04/19/1977 |
| 4007677 | Compactor device A waste compacting system for use in commerical establishments is described. Refuse to be compacted is fed via a chute into a first chamber and when a given level is reached, a first hydraulically actuated ram is automatically or manually activated to pus... | 02/15/1977 |
| 4005974 | Mold-closing unit, particularly for injection-molding machines A mold closing unit for an injection molding machine having a double acting mold closing piston, a closable valve interconnecting both sides of the piston, an auxiliary piston, and a piston rod for each piston, each connecting one side of the pistons to t... | 02/01/1977 |
| 4002116 | Apparatus for forming trusses A V-shaped, substantially flat, sheet metal, combined web-connector plate having diverging web-forming legs and integral apex and leg end connector portions provided with struck-out teeth for embedding within spaced apart wooden chord members to form a wo... | 01/11/1977 |
| 3998150 | Cotton packaging method and apparatus In a cotton packaging system including a press section, transfer section, strapping section, bagging section and shrink section in longitudinal alignment, a cotton bale is formed by successive compression of overlapping cotton layers and is thereafter tie... | 12/21/1976 |
| 3965812 | Method of compressing scrap metal This invention is directed to an apparatus and method wherein relatively large bulky pieces of scrap metal can be, substantially, simultaneously, divided or separated into smaller pieces of scrap metal and then compressed into smaller and more dense units... | 06/29/1976 |
