Patents by Inventor Johann Winterholler
Johann Winterholler 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: 9689126Abstract: An assembly includes a handheld work apparatus and a support. The support has a holder worn by an operator and a connector arrangement which is held at a first attachment on the holder and on a second attachment on the work apparatus. The connector arrangement is mounted on the second attachment so as to be pivotable about a pivot axis and supports the work apparatus in a rearward direction in relation to the operator and prevents a rearward movement of the work apparatus. The center of gravity of the work apparatus and the first attachment have a spacing (a) to one another measured in a horizontal and lateral direction in relation to the operator. The holder has, at the first attachment, a bracing device for supporting the tilting moment acting on the first attachment by the weight force (F) of the work apparatus because of the lateral spacing (a).Type: GrantFiled: January 21, 2016Date of Patent: June 27, 2017Assignee: Andreas Stihl AG & Co. KGInventors: Christian Barth, Markus Hittmann, Thomas Maier, Johann Winterholler, Matti Schwalk, Felix Oberhofer
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Publication number: 20160208449Abstract: An assembly includes a handheld work apparatus and a support. The support has a holder worn by an operator and a connector arrangement which is held at a first attachment on the holder and on a second attachment on the work apparatus. The connector arrangement is mounted on the second attachment so as to be pivotable about a pivot axis and supports the work apparatus in a rearward direction in relation to the operator and prevents a rearward movement of the work apparatus. The center of gravity of the work apparatus and the first attachment have a spacing (a) to one another measured in a horizontal and lateral direction in relation to the operator. The holder has, at the first attachment, a bracing device for supporting the tilting moment acting on the first attachment by the weight force (F) of the work apparatus because of the lateral spacing (a).Type: ApplicationFiled: January 21, 2016Publication date: July 21, 2016Inventors: Christian Barth, Markus Hittmann, Thomas Maier, Johann Winterholler, Matti Schwalk, Felix Oberhofer
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Publication number: 20060070540Abstract: A sleeve, in particular spacer sleeve, for variable-format printing presses, has at least two metallic layers, and at least one dimensionally stable intermediate layer arranged between a first, inner metallic carrier. layer and a second, outer metallic covering layer. The at least one intermediate layer determines the thickness or wall thickness of the sleeve.Type: ApplicationFiled: October 4, 2005Publication date: April 6, 2006Inventors: Alfons Grieser, Eduard Hoffmann, Angelika Keck, Johann Winterholler
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Patent number: 6899264Abstract: An apparatus for producing a sleeve-shaped printing form from a plate-shaped blank includes a circular shaping device for the blank, a welding system, by means of which the plate edges forming the start and end of the printing form can be cut to size, maintaining their dimensions, and welded, and a displaceable device for picking up and for transporting the blank to the circular shaping device. The displaceable device has a fixing frame which has two lifting elements which can be adjusted in accordance with the distance between the plate edges to be joined and can be set along the respective plate edge.Type: GrantFiled: December 22, 2003Date of Patent: May 31, 2005Assignee: MAN Roland Druckmaschinen AGInventors: Alfons Grieser, Eduard Hoffmann, Lorenz Stotz, Johann Winterholler
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Patent number: 6779449Abstract: A carrying sleeve, for painting and transfer forms of a metal material, the initial form of which is a rectangular thin-walled flat sheet. The sheet is bent into the desired hollow cylindrical form and the edges of the sheet which point toward one another are permanently connected together. The sleeve surface is processed in order to form a homogeneous continuous outer surface, so that continuous printing can be carried out.Type: GrantFiled: May 15, 1997Date of Patent: August 24, 2004Assignee: MAN Roland Druckmaschinen AGInventors: Eduard Hoffmann, Wolfgang Prem, Johann Winterholler
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Publication number: 20040155016Abstract: An apparatus for producing a sleeve-shaped printing form from a plate-shaped blank includes a circular shaping device for the blank, a welding system, by means of which the plate edges forming the start and end of the printing form can be cut to size, maintaining their dimensions, and welded, and a displaceable device for picking up and for transporting the blank to the circular shaping device. The displaceable device has a fixing frame which has two lifting elements which can be adjusted in accordance with the distance between the plate edges to be joined and can be set along the respective plate edge.Type: ApplicationFiled: December 22, 2003Publication date: August 12, 2004Applicant: MAN Roland Druckmaschinen AGInventors: Alfons Grieser, Eduard Hoffmann, Lorenz Stotz, Johann Winterholler
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Patent number: 6715418Abstract: Apparatus includes a housing, a feed table outside the housing for receiving a plate-like blank, a round shaping device in the housing for shaping the blank into a sleeve-like printing form, a welding system, and a transport device for fixing, transporting and depositing the blank aligned level on the shaping device. The transport device includes a plate suction frame penetrated by suction elements which make contact with the blank placed on the feed table. After contact has been made, the blank is fixed by activating the suction elements on the plate suction frame so as to be aligned level, and transported in a stable position to the round shaping device. The raw form is deposited on the round shaping device so as to be aligned level and fixed in-register.Type: GrantFiled: April 2, 2002Date of Patent: April 6, 2004Assignee: MAN Roland Druckmaschinen AGInventors: Eduard Hoffmann, Johann Winterholler, Alfons Grieser, Katrin Bilzer
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Publication number: 20020139267Abstract: Apparatus includes a housing, a feed table outside the housing for receiving a plate-like blank, a round shaping device in the housing for shaping the blank into a sleeve-like printing forme, a welding system, and a transport device for fixing, transporting and depositing the blank aligned level on the shaping device. The transport device includes a plate suction frame penetrated by suction elements which make contact with the blank placed on the feed table. After contact has been made, the blank is fixed by activating the suction elements on the plate suction frame so as to be aligned level, and transported in a stable position to the round shaping device. The raw forme is deposited on the round shaping device so as to be aligned level and fixed in-register.Type: ApplicationFiled: April 2, 2002Publication date: October 3, 2002Applicant: MAN Roland Druckmaschinen AGInventors: Eduard Hoffmann, Johann Winterholler, Alfons Grieser, Katrin Bilzer
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Patent number: 6367684Abstract: A method for smoothing and compacting a weld on a cylindrical support sleeve includes mounting the support sleeve on an abutment and moving a device across the support sleeve such that a roller on the support sleeve rolls on the weld under pressure so that it smooths and levels the weld. An arrangement for smoothing and compacting a weld on a cylindrical support sleeve includes, the abutment on which the support sleeve may be mounted, the device, and the roller.Type: GrantFiled: May 6, 1999Date of Patent: April 9, 2002Assignee: MAN Roland Druckmaschinen AGInventors: Eduard Hoffmann, Alfons Grieser, Johann Winterholler
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Patent number: 5992727Abstract: Disclosed is an apparatus for producing a sleeve-type printing form from a plate-shaped blank. The apparatus has a fixing device for fixing the uppermost plate-shaped blank of a stack of blanks as a flat raw form, a curving device for curving the flat raw form, and a welding machine by which the plate edges that constitute the beginning and end of the printing form can be welded by a laser beam. The apparatus includes a housing which is a radiation protective casing. The curving device and the welding machine are arranged in the housing, Outside of the housing, there is a layout table, and an opening is left in the housing above the layout table. A fixing frame to hold the plate-shaped blank can be moved between the layout table and the curving device by means of a linear drive, so that the entire production process for the sleeve-type printing form can be performed inside the housing, which can be sealed in a radiation-proof manner during the production process.Type: GrantFiled: March 16, 1998Date of Patent: November 30, 1999Assignee: MAN Roland Druckmaschinen AGInventors: Eduard Hoffmann, Johann Winterholler
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Patent number: 5557960Abstract: A device for producing a tube-shaped printing form from a plate with a register hole system. A clamping strip which can be supported in its initial position and fastened to the respective plate edge longitudinally is provided for each edge of the plate to be connected. The clamping strips have a pin register which is designed in so that the pins can cooperate with the register hole system of the plate. A mechanism is assigned to one of the strips for effecting a rotation around an axle parallel to its longitudinal axis. The strips can be positioned opposite one another by this rotation and the plate edges clamped at the strips contact one another and can be connected for the purpose of forming a tube.Type: GrantFiled: April 4, 1994Date of Patent: September 24, 1996Assignee: MAN Roland Druckmaschinen AGInventors: Eduard Hoffmann, Johann Winterholler, Wolfgang Prem
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Patent number: 5513568Abstract: A plate cylinder for a sleeve-type printform, particularly an aluminum offset printform, with a ramp-like transition piece as a guide surface for the mechanical expansion of the sleeve-type printform onto the larger cylinder diameter. At least the surface area of the plate cylinder that is covered by the ramp-like transition piece has a highly wear-resistant and pressure-resistant slide surface of a material different from the remaining surface material of the plate cylinder to prevent abrasion when the printform is slipped onto the plate cylinder.Type: GrantFiled: December 5, 1994Date of Patent: May 7, 1996Assignee: MAN Roland Druckmaschinen AGInventors: Eduard Hoffman, Wolfgang Prem, Alfons Grieser, Johann Winterholler
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Patent number: 5499580Abstract: A sleeve-shaped printing sleeve for a form cylinder of a printing machine is fabricated from a blank of metallic material by cutting the blank to a width corresponding to the form cylinder and to an intermediate length which exceeds the circumference of the intended printing form cylinder. Additionally, the blank is provided with aligning indicia in the regions between each edge of the intermediate-length blank and the corresponding edge to be defined by cutting. Thus, these regions lie outside of the printing area. The blank is bent circularly, held in exact register in a bending/welding device, and cut to the length required for the intended form cylinder by laser beam cutters. As a result of this cutting operation, two waste pieces are produced. The waste pieces are removed and the now defined plate edges forming the beginning and end of the printing form are positioned opposite one another without overlap and welded together, preferably by a laser.Type: GrantFiled: November 2, 1994Date of Patent: March 19, 1996Assignee: MAN Roland Druckmaschinen AGInventors: Eduard Hoffmann, Johann Winterholler, Wolfgang Prem
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Patent number: 5379693Abstract: A circumferentially continuous printing plate, which has the advantage over clamp plates that a clamping arrangement and groove in a plate cylinder can be eliminated, is formed by rolling a flat printing plate into tubular or sleeve form and welding the end edges together, preferably by a neodymium-YAG laser weld, resulting in a narrow, less than 1 mm wide, weld seam (2) having upper and lower concave sides, or by adhering the end edges to an underlay saddle (9), the plate can be coated and imaged when flat or after having been rolled and installed on a plate cylinder (37) of a printing machine. Interengaging projection-and-recess elements (4, 6; 14, 16) are formed on the plate (1, 1') and on the cylinder (37), respectively, to ensure lateral and circumferential register.Type: GrantFiled: December 4, 1992Date of Patent: January 10, 1995Assignee: MAN Roland Druckmaschinen AGInventors: Eduard Hoffmann, Johann Winterholler, Wolfgang Prem, Herbert Stockl
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Patent number: 5255602Abstract: An apparatus for threading webs in rotary printing machines. A threading belt (13) in the form of a hook band of a "VELCRO" closure is guided on the threading path, and the leading edge of the web has a loop band (35) which is engaged in the threading belt.Type: GrantFiled: September 8, 1992Date of Patent: October 26, 1993Assignee: MAN Roland Druckmaschinen AGInventors: Hans Mamberer, Johann Winterholler
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Patent number: 4598850Abstract: To permit formation of a threading element as a closed-loop structure, while being capable of accommodating threading paths of different lengths, the threading element is formed as a sprocket chain which has a long return portion (1) in a return path, coupled to a driven sprocket wheel (2), and connecting portions (3, 4) of a length suitable for the respective threading paths (B, C), and selectively connectable with the return portion (1), to thereby form a closed loop with the selected connecting portion (3 or 4). Pneumatically operated pistons located on path selection switches (5, 6) push the last link of the return portion into engagement with a selected end of the connecting portion, for example by engaging a cross pin (26) in a slotted end link (22, 23; 24, 25) of the connecting portions.Type: GrantFiled: February 11, 1985Date of Patent: July 8, 1986Assignee: M.A.N.-Roland Druckmaschinen AktiengesellschaftInventors: Johann Winterholler, Josef Plantsch, Petra Fischer
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Patent number: 4404907Abstract: To prevent jamming of a threading roller chain being pushed against the teeth of a sprocket wheel which, in advance of being driven, is still stationary, a portion of the guide rail guiding the roller chain (11) and opposite the sprocket wheel (24) is formed to be resiliently deflectable, for example by including a rocker element (36) or a resilient track portion (51, 52), the rocker element or the resilient track portion being maintained by a spring (46, 55) in normal, undeflected position, but permitting deflection, the spring means returning the resiliently deflectable portion to aligned, undeflected position upon proper feeding and threading of the roller chain.Type: GrantFiled: May 5, 1981Date of Patent: September 20, 1983Assignee: M.A.N.-Roland Druckmaschinen AktiengesellschaftInventors: Ingo Kobler, Johann Winterholler
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Patent number: 4402232Abstract: To permit adjustment of the engagement pressure of mutually engaged roller elements, such as bearer rings (1, 3) or rubber blanket cylinders (31-34) against an impression cylinder or plate cylinders (35-38), a blind bore (4) is formed in the respective roller elements in a zone where engagement pressure will result in deformation in a wall of the blind bore, the bore being filled with a fluid such as hydraulic fluid, silicone, or the like, the pressure of which is determined by a pressure transducer such as a piezoelectric element coupled, through an amplifier, to a peak detector which indicates pressure upon axial alignment of the blind bore (4) and the axes of rotation of the respective engaging rollers. A base pressure in the chamber can be adjusted by an outside adjustment screw which, like the transducer, is preferably carried on an external adapter element attached to the respective roller.Type: GrantFiled: June 5, 1981Date of Patent: September 6, 1983Assignee: M.A.N.-Roland Druckmaschinen AktiengesellschaftInventors: Albert Stegmuller, Herbert Stockl, Johann Winterholler
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Patent number: 4187968Abstract: To provide for automatic threading of a paper web throughout an entire printing press equipped with a press threading mechanism, and also over the folding former thereof, two paper guide baffles are located at the back side of the folding former extending in converging direction from the edges of the former to the tip thereof and up to the nip between a pair of take-up rollers located below, and adjacent the tip of the former. Air pressure differential generating means, typically air blast nozzles are directed towards the guide baffles to generate an under pressure adjacent to surfaces thereof which will pull paper downwardly into the nip between the take-up rollers. The take-up rollers themselves have a knurled, or ribbed surface and are driven by air blasts directed against the ribbing of the surface, to move paper which is guided over the folding former by the air blasts away and through the former mechanism.Type: GrantFiled: December 19, 1977Date of Patent: February 12, 1980Assignee: Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft (M.A.N.)Inventors: Johann Winterholler, Josef Plantsch, Herbert Stockl, Siegfried Gunther
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Patent number: 3995553Abstract: A plurality of drive elements, such as electric motors supplied with sprockets, are located along a threading path for the paper web of a rotary printing press; a threading element, such as a sprocket chain of a finite length somewhat longer than the maximum space between drive elements is moved along the path, for example, in a guide channel, the threading element cooperating with switches located adjacent the drive elements to energize the drive element adjacent a leading edge of the threading element, and move the threading element along to the next threading element, the trailing end turning the switch OFF since drive power will be supplied by the next drive element along the path. This sprocket chain carries a gripper with which the leading edge of the paper web to be threaded into the printing press can be gripped.Type: GrantFiled: January 21, 1975Date of Patent: December 7, 1976Assignee: Maschinenfabrik Augsburg-Nurnberg AGInventors: Johann Winterholler, Hans Jorg Laubscher, Bernd Heinrich, Josef Plantsch