Patents Represented by Attorney Joseph A. Geiger
  • Patent number: 4573901
    Abstract: A cast iron die carrier member for the die closing unit of an injection molding machine having a machined die mounting face which is interrupted by a pattern of shallow face grooves on the surface of which the casting skin of higher resistance and lower elongation is retained, in order to stiffen the die carrier member against bending and distortion under an elevated die closing pressure. The die carrier member also has axially extended, vertically braced supporting flanges reinforcing the cantilever-type clamping connection between the member and the guide rails of the machine base to further stiffen the die carrier member against bending and to thereby reduce the long-term wear of the guide surfaces of the die closing unit.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: March 4, 1986
    Inventor: Karl Hehl
  • Patent number: 4571912
    Abstract: An overhead anchoring track with a C-shaped channel and a row of outwardly protruding eye sockets in the web portion of the channel shape, the eye sockets having conical portions and adjoining neck portions which engage the threaded shaft portions of countersunk head anchoring screws, the anchoring screws having their heads supported in the conical portions of the eye sockets, on the inner side of the web portion, while being axially retained either by a female thread in the neck portions or by neck portions which are radially pinched against the screw shafts. At least one additional member is threadable onto the distal extremity of each anchoring screw, for the purpose of anchoring and/or positioning the anchoring track in relation to the concrete member.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: February 25, 1986
    Inventor: Siegfried Fricker
  • Patent number: 4569437
    Abstract: An inclined furnace grate for an industrial furnace or incinerator with transverse grate beams supporting a downwardly stepped succession of banks of stationary and reciprocating grate bars, the grate beams having arranged in their supporting surfaces removable bearing pads of abrasion-resistant, alloyed cast iron for the sliding support and lateral positioning of the reciprocating grate bars, thereby protecting the softer cast iron grate beams against sliding wear and abrasion. The removable bearing pads are received inside shallow recessed seats and retained in place by the adjacent stationary grate bars.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: February 11, 1986
    Assignee: Richard Kablitz GmbH & Co. KG
    Inventor: Eugen Doerges
  • Patent number: 4565176
    Abstract: An intake air temperature control device for mixture-compressing internal combustion engines having an inlet flapper proportioning the flows of cold and preheated raw air into a duct junction and into raw air mixing duct, the flapper-adjusting wax thermostat being arranged inside a thermostat chamber into which branch flows of cold and preheated raw air are admitted through two calibrated branch inlets. A narrow annular gap through which the combined branch flows must pass assures an integrated response of the thermostat to changing temperatures and air intake speeds. A lost-motion drive connection and a biasing member produce a full-load correction of the adjusted temperature. The flapper drive members may have valve edges which cooperate with the calibrated branch inlets to open and close the latter.
    Type: Grant
    Filed: September 10, 1984
    Date of Patent: January 21, 1986
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventors: Herbert Alf, Rudolf Leipelt, Rolf Fusser, Helmut Spannbauer
  • Patent number: 4564348
    Abstract: A machine base for an injection molding machine welded together of die-cut and die-formed sections of steel sheet, including a U-shaped base member, front and rear end walls, and an intermediate partition wall. The folded-over upper edges of the base member side walls carry two guide rails supporting and centering the die closing unit, and the front end wall has a parts discharge opening accommodating a longitudinally oriented parts discharge conveyor in a height-adjustable mounting arrangement. This makes it possible to have closed side walls on the machine base which prevent operators from reaching into the work space of the machine.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: January 14, 1986
    Inventor: Karl Hehl
  • Patent number: 4558916
    Abstract: A multi-pin plug connection system with a multi-pin plug connector accepting single or multiple unequally constituted multi-conductor cables of the round and/or ribbon type for connection to the standardized socket bars of printed circuit board modules, the multi-pin connector featuring a one-piece housing with a central pocket receiving a pin bar assembly composed of one or more plug units. Each plug unit holds a number of parallel conductor strands, which enter positioning grooves between two clamping members from one or the other direction, in engagement with contact knives of the contact posts. The connector housing has two shell halves attached to the sides of said pocket by a bending hinge and equipped with cable positioning and reorienting studs in alignment with a shaped entry aperture, the shell halves being pivotable from an injection-molded open position to an abutting closed position.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: December 17, 1985
    Inventor: Karl Hehl
  • Patent number: 4552283
    Abstract: A safety device for the clamping screws of pressurized fluid receptacles comprising an internally faceted socket recess in the head of the clamping screw and a threaded axial bore in its shaft. Into the latter is screwed a bleed screw the head of which occupies the socket of the clamping screw. The need to unscrew the bleed screw to gain access to the socket of the clamping screw prevents the inadvertent unscrewing of the clamping screw under pressure by alerting the operator to the presence of pressure, as the bleed screw opens a bleed channel and thereby creates a small fluid leak. The bleed channel extends alongside the threaded axial bore in the clamping screw and is normally closed by the head of the bleed screw.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: November 12, 1985
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventor: Erich Poldner
  • Patent number: 4545753
    Abstract: An ejection device in a die closing unit of an injection molding machine in which the ejector piston rod, reaching from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half, is automatically engaged with, or disengaged from, the ejector plate, in the course of the movement of a die assembly into and out of the operating position, in conjunction with a mechanized die exchange procedure. A connecting socket at the extremity of the piston rod cooperates with a connecting plug on the back side of the ejector plate. A brief interruption of the transfer movement, obtained by means of a stop-start mechanism responsive to the die assembly transfer movement, allows for the piston rod to be extended into, or retracted from, the engagement cavity.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: October 8, 1985
    Inventor: Karl Hehl
  • Patent number: 4545532
    Abstract: A fan-jet sprinkler of the type which has an oscillating horizontal nozzle cylinder driven by a turbine wheel and a translation drive, the sprinkler having a rotational connection between its stand and housing, or between the nozzle cylinder and an oscillating drive sleeve, so that the oscillation range can be shifted by adjusting the angular relationship between the oscillation range and the sprinkler stand independently of the drive transmission.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: October 8, 1985
    Assignee: Perrot-Regnerbau GmbH & Co.
    Inventors: Friedrich Schanz, Emil Schucker, Alexander Perrot
  • Patent number: 4544340
    Abstract: A mechanism for the clamping attachment of interchangeable injection molding dies to the die carrier plates of an injection molding machine featuring a plurality of clamping plungers in axial guide bores of the die carrier plates, each clamping plunger having a clamping nose engaging a clamping shoulder of an oversized back plate of the die half, clamping the latter against the die carrier plate, when forcibly retracted by means of a transversely guided wedge rod driven by a hydraulic cylinder assembly. The wedge rod engages opposite faces of an inclined transverse plunger bore, for a self-locking clamping drive configuration and a positive extension drive configuration.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: October 1, 1985
    Inventor: Karl Hehl
  • Patent number: 4532740
    Abstract: An anchoring track designed to be embedded in the surface of a structural member of concrete, the track having a C-shaped profile and a styrofoam filler body filling out the interior of the track to prevent the penetration of mortar into the track, the filler body being removable from the embedded track by means of a tear strip which is arranged between the back side of the filler body and the base wall of the anchoring track, in alignment with the slot of the anchoring track. The tear strip, when pulled through the slot of the track, tears out a central profile portion from the filler body to permit easy removal of the profile portions of the filler body remaining underneath the flange portions of the anchoring track.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: August 6, 1985
    Inventor: Siegfried Fricker
  • Patent number: 4530655
    Abstract: A mounting arrangement for a die closing unit on the machine base of an injection molding machine, where the machine base has two guide rails with parallel horizontal and vertical guide faces welded to the upper edges of its U-shaped base member, the stationary die carrier plate and the stationary cylinder head plate of the die closing unit being positioned and positively centered by the guide faces of the guide rails, and the movable die carrier frame being adjustably guided on the same guide faces. The cylinder head plate is free to execute small displacements along the guide rails, in compensation for the periodic elongation of the tie rods, when the closing pressure is applied to the injection molding die.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: July 23, 1985
    Inventor: Karl Hehl
  • Patent number: 4518338
    Abstract: A device for the program-controllable exchange of injection molding dies and for the continuous preconditioning of an injection molding die, prior to and during its insertion into the die closing unit of an injection molding machine, comprising a translation table with two die emplacements which are alternatingly movable into transverse alignment with the die clamping space, for transfer of a die assembly by means of an endless roller chain with drive pins and a drive rack entraining the die assembly. Each die emplacement has a captive drive rack which carries a coupling head for flexible temperature conditioning supply lines and each die assembly has a matching coupling head with coupling valves and an identification code incorporated in a multi-conductor connection, all connections being established by the mere lowering of the die assembly onto its die emplacement.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: May 21, 1985
    Inventor: Karl Hehl
  • Patent number: 4516990
    Abstract: A method of removing soot from the exhaust gases of internal combustion engines, especially of the diesel-type, using an exhaust filter which collects the soot and a dosing device which, when triggered by a pressure switch and a series-connected temperature switch, injects a dose of a combustion-inducing substance onto the soot layer with the aid of compressed air. The combustion-inducing substance consists of CuCl and NH.sub.4 NO.sub.3 which are stored as a mixture in a single container or as separate ingredients in two containers.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: May 14, 1985
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventors: Hans Erdmannsdorfer, Manfred Wagner, Rudi Numrich, Gerd Weyh
  • Patent number: 4511085
    Abstract: A drive mechanism for a swiveling fan-jet sprinkler comprising a water-driven turbine, a reduction gear drive and, on the final drive shaft of the latter, a rotary cam member cooperating with a cam follower on the nozzle cylinder. The rotary cam member is preferably a swash plate with an elliptical torus-like rim, engaged by a fork-shaped cam follower. The mechanism may include adjustability of the swivel angle of the nozzle cylinder through a swash plate with an adjustable inclination on the final drive shaft.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: April 16, 1985
    Assignee: Perrot-Regnerbau GmbH & Co.
    Inventors: Friedrich Schanz, Emil Schucker, Eberhard Schucker, Alexander Perrot
  • Patent number: 4489586
    Abstract: A device for measuring the fold angle in a sheet metal bending press of the type in which a press head forces the workpiece into the V-shaped groove of a die block, the fold angle measuring device having one or two spring-loaded feeler rods in contact with the workpiece laterally outside the bending edge of the press head, the feeler rod, or rods, being connected to an indicator or transducer of the resistive, capacitative, or photoelectric type, for a readout and/or an electrical output signal usable in a feedback circuit of the press controls. The components of the device are arranged in the cavity of a narrow, block-shaped housing which has substantially the same outline as the adjoining sections of the press head.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: December 25, 1984
    Inventor: Johann Hess
  • Patent number: 4487386
    Abstract: A strain relief assembly for the angular throughfeed and attachment of a 90.degree.-deflected cable to the wall of a receptacle or enclosure comprising a threaded clamping sleeve with an enlarged clamping collar cooperating with a pot-shaped clamping cover which is adjustably clampable to the collar side of the clamping sleeve, while abutting against the latter opposite a cable pinching recess in the cover side wall. This abutments form a fulcrum about which the clamping cover is tiltable to clamp cables of different diameters. For mounting in a threaded bore, the threaded portion of the clamping sleeve has transverse slots defining yielding sectors which, when deflected in the axial direction by clamping screws, create a clamping interference between the threads of the clamping sleeve and of the bore.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: December 11, 1984
    Inventor: Karl Hehl
  • Patent number: 4487569
    Abstract: An injection molding machine with a mechanism for pivotably repositioning the die closing unit between a horizontal orientation and a vertical orientation, featuring a pivot frame composed of tubular members to which the die closing unit is fixedly attached and two transversely aligned stationary pivot bearings on the machine base, in relation to which the pivot frame is axially adjustable by means of two threaded spindles. The pivotal repositioning is obtained by means of a worm gear drive on one of the pivot shafts, and both pivot shafts cooperate with threaded clamping plugs which press the pivot frame members against the pivot bearings to transfer the pivot connections into rigid mounting attachments on the machine base.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: December 11, 1984
    Inventor: Karl Hehl
  • Patent number: 4485661
    Abstract: A deep-drawing and edge-trimming tool assembly for the shaping of workpieces with an upstanding peripheral edge flange and the subsequent trimming of the outer edge of the edge flange, the assembly comprising a vertically and horizontally movable bolster plate carrying a pressure ring and a drawing ring which cooperates with a stationary drawing punch arranged above the bolster plate, so that the drawing ring is movable downwardly, for a deep-drawing operation and, in its lowermost position, is also movable horizontally in four directions, for a sequential edge trimming operation, in cooperation with the lower peripheral edge of the stationary drawing punch.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: December 4, 1984
    Inventor: Karl Hehl
  • Patent number: 4473346
    Abstract: A mechanism for the clamping attachment of interchangeable injection molding dies to the die carrier plates of an injection molding machine featuring a plurality of clamping plungers in axial guide bores of the die carrier plates, each clamping plunger having a clamping nose engaging a clamping shoulder of an oversized back plate of the die half, clamping the latter against the die carrier plate, when it is forcibly retracted by means of a transversely guided wedge rod traversing the clamping plunger and driven by a hydraulic cylinder assembly in a self-locking taper drive configuration. The injection molding dies are insertable and removable in either a horizontal or a vertical direction.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: September 25, 1984
    Inventor: Karl Hehl