Patents by Inventor Hans Schaeff
Hans Schaeff has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7204378Abstract: A goods transshipment apparatus having a mobile substructure with a superstructure mounted so as to be rotatable relative to said substructure and having a driver's cab and engine compartment and a jib or jib system jointed to the superstructure wherein the superstructure is adjustable between a lower position (resting position I) on the substructure and an upper position (operating position II) at a spacing from the substructure.Type: GrantFiled: March 13, 2003Date of Patent: April 17, 2007Assignee: Fuchs-Bagger GmbH & Co. KGInventor: Hans Schaeff
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Patent number: 6755604Abstract: The present invention relates to a wheeled shovel loader that comprises a boom (3) capable of pivoting about an axis (4) as well as loading shovel (13) that can be actuated by a tilting structure (11, 12). According to this invention, at least one additional arm (7) connecting the boom (3) and the loading shovel (13) is hinged so as to be capable of displacement in the same way as a parallel linkage or parallelogram on said arm (3) under the action of at least a first connecting rod (8) and at least a second connecting rod (9). The shovel loader of the present invention comprises means for controlling the displacement of the additional arm (7) according to the angular position of the boom (3) relative to its pivot axis (4), as well as means for maintaining the loading shovel (13) in a horizontal position.Type: GrantFiled: May 4, 2001Date of Patent: June 29, 2004Assignee: Schaeff-Terex GmbH & Co. KGInventor: Hans Schaeff
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Publication number: 20040033124Abstract: A goods transshipment apparatus having a mobile substructure with a superstructure mounted so as to be rotatable relative to said substructure and having a driver's cab and engine compartment and a jib or jib system jointed to the superstructure wherein the superstructure is adjustable between a lower position (resting position I) on the substructure and an upper position (operating position II) at a spacing from the substructure.Type: ApplicationFiled: March 13, 2003Publication date: February 19, 2004Inventor: Hans Schaeff
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Publication number: 20020154984Abstract: A modular material shifting device with a base element (1) which includes an energy and drive unit (2), with a superstructure (30) which is disposed so as to be rotatable with regard to the base element (1) by means of a ring mount, including a boom system (50) with gripping or holding tool (59) and a counterweight (40) and with a driver's cab assigned to the superstructure (30).Type: ApplicationFiled: March 28, 2002Publication date: October 24, 2002Inventor: Hans Schaeff
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Patent number: 6293579Abstract: A mobile rig on wheels with transverse motion, in particular a telescoping stacker, having a first axle mounted on a rigid vehicle frame and a second axle disposed transversely movably on the vehicle frame to describe a circular translation. Advantageously, the second axle is disposed on the vehicle frame by parallel links and the parallel links can be swivelled through vertical axes by swivel actuation device.Type: GrantFiled: March 8, 1999Date of Patent: September 25, 2001Assignee: Karl Schaeff GmbH & Co MaschinenfabrikInventor: Hans Schaeff
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Patent number: 6170180Abstract: An excavator comprises a substructure and a superstructure pivoted on the substructure with an engine compartment and a valve box of the excavator being formed in the superstructure; and at least one fluid tank disposed between the engine compartment and the valve box essentially extending over the width of the superstructure. An excavator includes a first and a second fluid tank abutting each other with one positive and complementary side wall each to provide a particularly simple installation of the tanks in a wedge-like manner while utilizing the room in an optimum manner, for example, in the frame of the superstructure.Type: GrantFiled: March 12, 1999Date of Patent: January 9, 2001Assignee: Karl Schaeff GmbH & Co., MaschinenfabrikInventor: Hans Schaeff
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Patent number: 6158818Abstract: Rock cutting head comprising a one-part steel housing attachable to a working machine lug, an electric or hydro motor being attached to the rear portion of the housing and two uni-axial similar cutting drums being provided at its front portion, the rear housing portion, in which a drive pinion directly or indirectly connected to the motor is provided, being terminated toward the lug with a widened connection plate, its front portion supporting outer bearing hubs, in which the shafts of the two cutting drums uniformly connected to a middle drive spur-toothed wheel are provided and wherein a larger intermediate wheel is provided in the housing between drive pinion and drive spur-toothed wheel.Type: GrantFiled: November 5, 1997Date of Patent: December 12, 2000Assignee: Webster Schaeff & Co.Inventors: Hans Schaeff, Ian Frederick Webster
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Patent number: 5778569Abstract: A multipurpose construction vehicle bears on its vehicle frame, which is realized as an axle-link pivot or center pivot type, a front swing loading device and a rear-mounted excavator. The swing loading device is permanently connected above the front axle (3) to a front subframe (22) which forms part of the vehicle frame, and the rear-mounted excavator is permanently connected to a rear subframe (32) which is connected to the rear axle (5) and forms part of the vehicle frame, both subframes (22, 32) being connected to one another at a suitable point along the longitudinal center axis of the vehicle by means of a self-aligning bearing (34) which can swivel about this longitudinal axis to a limited degree and by means of cylinders arranged at a distance from the self-aligning bearing on both sides, so that the two subframes can be locked with respect to one another at any desired swivel position.Type: GrantFiled: March 28, 1996Date of Patent: July 14, 1998Assignee: Karl Schaeff GmbH & Co.Inventor: Hans Schaeff
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Patent number: 5308220Abstract: The invention concerns a scoop-and-dump jack of a loader shovel or a fork of a shovel loader and comprising a piston-rod extension 46a guided in a sealed borehole of the jack cylinder-bottom 43 to achieve a dumping motion at least as rapid as the retracting motion and to permit simple assembly and maintenance of the jack, the diameter of said extension corresponding at least to that of the piston rod 46, the jack bearing-eye 50 and the jack cylinder-bottom being integrally joined by a connection member 49 extending over most of the length of advance of the piston-rod extension 46a, and the receiving space 51 for the piston-rod extension comprising a laterally open access for purposes of assembly or exchange of the guide means and seals 44, 45 in the jack cylinder-bottom.Type: GrantFiled: August 27, 1992Date of Patent: May 3, 1994Assignee: Karl Schaeff GmbH & Co., MaschinenfabrikInventor: Hans Schaeff
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Patent number: 5295318Abstract: A backhoe-loader with a undercarriage resting on wheels and comprising at its front end a loader structure with a loader arm and a loading bucket and at the other end a superstructure revolving 360.degree. , a driver cab is mounted to one side of the superstructure and on the other side next to the driver cab there are provided power units and a mounting pad pivotable about a vertical shaft for the horizontal pivot shaft of an excavator boom. The boom is positionable in a raised state with the dipper arm collapsed and the implement in a forward-pointing rest position above the undercarriage and outside the field of view of the driver cab. A front mudguard is present in front of the mounting pad and functions as a rest for the implement, the loader structure is mounted asymmetrically relatively to the longitudinal center axis of the undercarriage on the cab side of the undercarriage, and the rest for the implement on the front mudguard is widened toward the middle of the undercarriage.Type: GrantFiled: July 21, 1992Date of Patent: March 22, 1994Assignee: Karl Schaeff GmbH & Co.Inventor: Hans Schaeff
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Patent number: 5178238Abstract: A braking power converter for trucks, busses, trailers, semitrailers and cars as a long-term brake, with oil as the working fluid and an oil cooler, wherein one or more high-pressure reciprocating pumps, which can control the transporting capacity up to zero transport, are driven continuously by the vehicle proportionately to the travelling speed, and an oil flow is compressed to a high pressure of roughly 300 to 900 bar during the braking operation, subsequently relieved of pressure and thereby heated up, after which the heated oil flow is recooled in the oil cooler.Type: GrantFiled: November 2, 1990Date of Patent: January 12, 1993Assignee: Karl Schaeff GmbH & Co., MaschinenfabrikInventor: Hans Schaeff
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Patent number: 5137101Abstract: A stepping vehicle with a chassis having two height-adjustable wheel arms with braked wheels and two stepping legs powered individually. The stepping legs are equipped with pivot limit positions parallel to the vehicle longitudinal axis and to assure chassis stability outside a stepping cycle, a support system is provided with one or two additional rest points.Type: GrantFiled: September 25, 1990Date of Patent: August 11, 1992Inventor: Hans Schaeff
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Patent number: 5054990Abstract: An excavator arm with basic boom 12, intermediate boom 14 and shovel stem 16 with digging implement is connected to a support part 86 which can be driven directly or indirectly into rotation about a vertical axis 84. In order to dig trenches with vertical walls outside the longitudinal axis of the vehicle and to achieve an advantageous transport position, the intermediate boom 14 consists of a front part 14a, a rear part 14b and a common rotary joint 20, the most advantageous transport position being achieved by rotating by 180.degree. the front part 14a, about the axis of rotation 22 set vertically, from the extended operational position relative to the rear part 14b.Type: GrantFiled: December 18, 1989Date of Patent: October 8, 1991Assignee: Karl Schaeff GmbH & Co.Inventor: Hans Schaeff
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Patent number: 4632595Abstract: A quick-change coupler for the work implements of an excavator beam with an adjustable support frame (4) at the beam, said support frame receiving by means of a hook jaw a cross-pipe fixed to the tool. The hook (6) widens starting at its tip and is provided on its backside with a slanted surface (7) cooperating with a corresponding bevel (23) at the tool in order that, after the engagement between hook and cross-pipe (21) and further pivoting of the support frame (4), this support frame be automatically centered until it is locked with respect to the tool.Type: GrantFiled: April 6, 1984Date of Patent: December 30, 1986Inventor: Hans Schaeff
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Patent number: 4602821Abstract: A guide member is mounted to the housing frame to be integrated into the boom or shovel arm of a hydraulic excavator to control an additional implement in the form of a clearing blade or clearing shovel which is displaceable on the guide member between a rest position laterally abutting the housing frame and an operational position pointing approximately in the same direction as the actual hammer and which can be locked in place at least in each of the end positions.Type: GrantFiled: September 28, 1984Date of Patent: July 29, 1986Assignee: Karl Schaeff GmbH & Co. MaschinenfabrikInventor: Hans Schaeff
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Patent number: 4571147Abstract: A shovel excavator with an upper carriage pivoting unrestrictedly on an undercarriage and with an attachment holder (6) for a boom (8) pivoting laterally at the front. The pivot shaft (5) is located a distance corresponding to at least half the conventional shovel width from the front edge (22) of the operator cab, so that when the boom is pivoted transversely and the shovel post (10) is folded up, together with the excavating shovel (11), this assembly remains within the contour of the upper carriage. Unhampered view forward and on the ground through the folded-up boom assembly is provided to the operator cab. The second pivot shaft (5) is located in the area between the travel track and the longitudinal center line L of the vehicle in one main excavating position of the upper carriage. Neither in the travel position nor in the main excavating position do the side walls of the upper carriage project laterally beyond the undercarriage.Type: GrantFiled: July 13, 1984Date of Patent: February 18, 1986Assignee: Karl Schaeff GmbH & Co. MaschinenfabrikInventor: Hans Schaeff
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Patent number: 4502709Abstract: An articulated vehicle with pivoting motion, on which the forward carriage supports a loading shovel for a forklift and the rear carriage a counterweight, at least a portion of the counterweight being displaceably arranged on a rear guide mounted transversely to the rear carriage and being so connected with the forward carriage that for every pivoting excursion an opposite displacement of the counterweight is achieved.Type: GrantFiled: March 24, 1982Date of Patent: March 5, 1985Assignee: Karl Schaeff GmbH & Co.Inventor: Hans Schaeff
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Patent number: 4378193Abstract: A mobile shovel excavator having a superstructure rotatable about a vertical axis on an undercarriage wherein the arc circumscribed by the rotating superstructure projects beyond the undercarriage, and a stump jib pivotable on the superstructure about a vertical pivot axis by means of a hydraulic cylinder is provided; an excavator jib is attached to the distal end of the stump jib, and the excavator jib is pivotable about the stump jib; in use, the stump jib may be pivoted so that the outer end thereof is either inside or outside of the arc circumscribed by this superstructure, thus varying the pivot point of the excavator jib, and when the excavator is not in use, both the stump jib and the excavator jib are entirely positioned within the arc circumscribed by the rotatable superstructure.Type: GrantFiled: May 26, 1981Date of Patent: March 29, 1983Inventor: Hans Schaeff
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Patent number: 4299530Abstract: A motor vehicle having excavating machinery mounted thereon and having at least two axles, at least one of which is driven, and further including an operator cab, the vehicle having counterweights on each lateral side of the cab, guides for the counterweights extending lengthwise of the vehicle on each lateral side of the cab, the counterweights being movable along the guides from a first position above one of the axles to a second position above the other of the axles, and apparatus for selectively securing the counterweights in each of the two positions.Type: GrantFiled: December 17, 1979Date of Patent: November 10, 1981Assignee: Karl Schaeff GmbH & Co.Inventor: Hans Schaeff
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Patent number: 4183711Abstract: A mobile power shovel comprising an upper carriage rotatably mounted on a vehicle chassis and including an attachment holder for an excavator jib, the attachment holder being mounted for pivoting within the envelope circle of the carriage on a slide laterally displaceable along a guide member, the guide member being arranged chordally within the envelope circle and spaced from the slewing axis, so that the slide, the jib, the scoop arm and the digging tool mounted thereon may be positioned within the envelope circle for improved maneuverability of the power shovel.Type: GrantFiled: August 1, 1978Date of Patent: January 15, 1980Inventor: Hans Schaeff