| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 100269010 | Fluid pressure actuation | 16 |
| 20090133591 | METHOD OF OPERATING A HYDRAULIC PRESSING UNIT, AND HYDRAULIC PRESSING UNIT HAVING A HYDRAULIC PUMP - The invention relates firstly to a method of operating a hydraulic pressing unit ( | 05-28-2009 |
| 20080282912 | Waste Compaction Unit - This invention relates to a unit for compacting waste prior to disposal. The invention provides a waste compaction unit for fitting into a housing comprising a lid and an interior for collecting waste, the compaction unit comprising a plunger comprising bellows housed in said lid; a pneumatic locking mechanism housed in said lid; and a pump connected to the plunger via said locking mechanism wherein the pump is arranged in operation to activate the locking mechanism prior to inflating the bellows to extend the plunger axially towards the bin interior such that any waste collected therein is compacted. | 11-20-2008 |
| 20110219963 | FRAME PRESS WITH GUIDE COLUMNS - The invention relates to a frame press having a plurality of press frames ( | 09-15-2011 |
| 20120103209 | Pneumatic high velocity press - A pneumatic press with high slide acceleration and velocity is equipped with an arrangement trigger mechanism for holding the slide, upper die, and punch in place until air pressure force in tons is exerted against slide opposite the upper die and punch. When the trigger mechanism releases the slide, upper die, and punch in a short travel the velocity is very high. This will permit the punch to enter the part material at the strain rate of the material, thus eliminating burrs, reducing fatigue initiation sites on the part material surface where the punch goes through the material. Also will permit forming parts of uniform thickness, impact powder titanium to form sheet, and stamp parts against flat sheet of polyurethane with punch having the shape of the part. | 05-03-2012 |
| 20120227596 | RADIAL PRESS - A radial press comprising a first and a second structure, each having a press yoke that form a receiving chamber for a press tool. Under the action of a drive unit, the second structure can be linearly moved by a pressing stroke relative to the first structure between an open position and a pressing end position in a working plane perpendicular to the press axis. In the open position of the radial press, a lateral feed opening is formed between the two press yokes. The drive unit is arranged offset with respect to the press axis only on the side facing away from the feed opening. A supporting drive, which is arranged on the side of the drive unit facing away from the press axis and can be continuously longitudinally adjusted in a defined manner within a supporting stroke, acts between the first structure and the second structure. | 09-13-2012 |
| 20110226141 | DIE CUSHION DEVICE FOR PRESS MACHINE - A die cushion device for a press machine includes: a hydraulic cylinder for supporting a cushion pad and generating a die cushion pressure when a slide of the press machine moves downward; a proportional valve and a hydraulic pump/motor connected in parallel between a lower chamber of the hydraulic cylinder and a low-pressure source; an electric motor connected to a rotating shaft of the hydraulic pump/motor; a die cushion pressure command issuer for outputting a predetermined die cushion pressure command; a pressure detector for detecting a pressure in the lower chamber of the hydraulic cylinder; and a controller for controlling an aperture of the proportional valve and a torque of the electric motor in a manner that the die cushion pressure becomes equal to a pressure corresponding to the die cushion pressure command, based on the die cushion pressure command and the pressure detected by the pressure detector. | 09-22-2011 |
| 100270000 | Combined with mechanical actuation | 2 |
| 100271000 | Mechanical force mutiplier | 2 |
| 20090173242 | ELECTRIC PRESS APPARATUS AND DIFFERENTIAL MECHANISM - A differential mechanism | 07-09-2009 |
| 20090071351 | Dual Force Ram Drive for a Screw Press - Precise motion of the ram of a fastener press is controlled by high torque and low torque motors for high speed/low force and high force pressing of the ram by the ram, respectively. The high torque motor means drive passes through a bidirectional overrunning clutch. The clutch is controlled by the relative motion of the two separate motor drive speeds of which are regulated by a controller. The clutching motion is therefore controlled only by the relative speed of its drive versus driven components. This provides an extremely smooth and responsive transition between high speed/low force and low speed/high force operation of the ram so that the pressing cycle can be as fast and efficient as possible. | 03-19-2009 |
| 100269050 | Pressure intensifier | 1 |
| 20090084277 | PRESSURIZING DEVICE - A pressurizing device comprising a connection mechanism ( | 04-02-2009 |
| 100269060 | Multiple or staged driving means | 1 |
| 20080202359 | Plate-crimping press for making pipe - A press for crimping longitudinal edges of a plate for the manufacture of pipe has a closed press frame, an upper press platen, and a lower press platen extending longitudinally through the frame. A pair of transversely spaced and transversely shiftable upper supports are provided on the upper platen, and a pair of transversely spaced and transversely shiftable lower supports on the lower platen. Respective upper dies are fixed in the upper supports and have downwardly directed lower faces, and respective lower dies are fixed in the lower supports and have upwardly directed upper faces. A piston/cylinder assembly braced between the frame and one of the platens and pressurizable to shift the one platen vertically toward the other of the platens. Hydraulic actuators may position the holders and their dies transversely and also lock them in place. | 08-28-2008 |
| 100269120 | Platen positioning means | 1 |
| 20090301321 | Laser Alignment device comprising plunger - According to various embodiments, the present teachings relate to an alignment device, method, and system for aligning an upper platen of a paperboard press with a lower platen of a paperboard press. The alignment device can comprise a latching collar adapted to be mounted on a lower platen. The latching collar can comprise a central hole and can be adapted to be mounted on or affixed to the lower platen. The latching collar can comprise a locking area. The alignment device can further comprise a plunger unit. The plunger unit can comprise a housing, a securing device attached to the housing, and a plunger configured for reciprocal motion through the housing. The securing device can be adapted to removably secure the housing to a top surface of an upper platen of a paperboard press. The alignment device can further comprise a biasing device for normally biasing the plunger in a retracted position with respect to the housing yet permitting the plunger to be pushed partially through the housing to attain an extended position. | 12-10-2009 |
| 100269140 | Fluid supply system detail | 5 |
| 20100107905 | ELECTROHYDRAULIC PRESSING DEVICE HAVING REMOVABLE HOSE - A pressing device includes a work head having a work head body holding a tool and a mating end. The pressing device includes an actuator having an actuator body holding a hydraulic pump that is operable to drive the tool. The actuator has a mating end. The pressing device includes an interconnect assembly including a hydraulic hose having first and second couplings at both ends of the hydraulic hose for mating with the mating ends of the actuator and the work head, respectively. The interconnect assembly is removable and the work head is configured to be directly coupled to the actuator. | 05-06-2010 |
| 20100000425 | Electrically operated press tool apparatus - A pump receiver housing of a hydraulically operated pressing apparatus designed in a compact and lightweight manner and that connects a drive unit to a piston cylinder unit and to a press unit. A piston pump assembly is connected to a pump flange pressed directly onto a connection cylinder of the piston-cylinder unit. The connection cylinder projects through a pump lead-through in the housing wall into the pump receiver housing, and directly contacts on the pump piston. Thus, the pump receiver housing is designed without conduits, so that an inside of the pump receiver housing is free of or has no high pressure. | 01-07-2010 |
| 20100212521 | DRIVE DEVICE FOR A BENDING PRESS - The invention relates to a drive device ( | 08-26-2010 |
| 20080210108 | Plunger-Cylinder Assembly - Disclosed is a plunger-cylinder assembly for a press, comprising a plunger ( | 09-04-2008 |
| 100269160 | Particular valve feature | 1 |
| 20120137903 | ENERGY SAVING IN HYDRAULIC BENDING PRESSES - Bending presses containing pistons providing up and down motion of the upper clamp, at least one engine for motion of the said pistons, and filling valves providing pre-filling during quick down and up motion of the pistons. The bending presses contain at least one pump of variable rotation and fixed displacement transmitting the motion received from the said engine to the pistons. | 06-07-2012 |
