Patents Assigned to Muhr und Bender
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Publication number: 20020133915Abstract: A raised spring band ring which includes a spring band which annularly surrounds one end of a hose, and two clamp ends which overlap one another and which run essentially in the peripheral direction of the spring band ring. The spring band ring when, in the clamping state, has a certain first diameter, and can be spread against its own spring force using a clamping tool to a second larger diameter. Additionally, the spring band ring has a smaller demand for installation space because the clamp ends, when in the clamped state, do not project radially outward from the round spring band.Type: ApplicationFiled: March 1, 2002Publication date: September 26, 2002Applicant: Muhr und Bender KGInventors: Heinz Hendrichs, Franz Hucker, Mario Hufnagel
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Patent number: 6336350Abstract: A method for the flexible rolling of a metallic band wherein, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls and which is set so that, over the length of the metallic strip, strip sections are obtained with different strip thickness. In order to prevent temperature-related deviations in the thickness and length profiles of the metallic strip, a compensation of the temperature influence effecting the metallic strip is carried out during rolling in order to prevent deviations from the theoretical thickness and/or the theoretical length of the individual strip sections at a default temperature of the metallic strip.Type: GrantFiled: August 7, 2000Date of Patent: January 8, 2002Assignee: Muhr und Bender KGInventor: Friedrich Klein
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Patent number: 6336349Abstract: A method for the flexible rolling of a metallic strip in which, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls, and during the rolling operation, the roll gap is deliberately changed in order to obtain different strip thicknesses over the length of the metallic strip. A good planeness of the metallic strip can be obtained, and particularly, also for relatively wide strips, in that, during each setting of the roll gap or directly afterward, the deflection curve bending line of the working roll is controlled depending on the setting of the roll gap for the achievement of planeness of the metallic strip.Type: GrantFiled: August 7, 2000Date of Patent: January 8, 2002Assignee: Muhr und Bender KGInventors: Andreas Hauger, Rainer Kopp
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Patent number: 6311965Abstract: Stabilizer (1) for motor vehicles which has a toroidal cross section, and which is formed of several stabilizer sections that, together, create a U-shape having a pair of U-legs (2) connected by a U-back (3) via arcuately shaped transitional shoulder areas (4). The stabilizer (1), as a pipe stabilizer, is able to withstand the required number of load cycles even under very high stress or enables even greater weight reduction under normal stresses, by important stabilizer sections having an increased strength as compared to other stabilizer sections by either dimensioning, and/or increasing the carbon content of an outer and/or inner surface layer of the stabilizer (1) by carburization, and also, optionally, by at least partially shot peening the inner surface, preferably at least in the transitional shoulder areas (4).Type: GrantFiled: September 25, 2000Date of Patent: November 6, 2001Assignee: Muhr und BenderInventors: Thomas Muhr, Leo Schnaubelt
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Patent number: 6250693Abstract: A device for connecting two tubular pipe sections. A sealing device is arranged between the pipe sections. At their ends, the pipe sections in each case have a flange-type end piece. The pipe sections are held together by a spring device using a pre-tensioning force, the spring device having a mid-section extending at right angles to the longitudinal axis of the pipe sections. The spring device has a spring element, from whose transverse sides of the mid-section, which extend at right angles to the longitudinal axes of the pipe sections, spring limbs extend. Forming an at least approximate U-shape with the mid-section, the spring limbs extend at least partially over the periphery of the pipe sections, the spring limps each having a centrical cut-out that is adapted to the outside diameter of the pipe sections and in which a pipe section is accommodated in each case in the mounted state of the spring element.Type: GrantFiled: November 25, 1998Date of Patent: June 26, 2001Assignees: Daimler-Benz Aktiengesellschaft, Leistritz AG & Co. Abgastechnik, Fa. Muhr und BenderInventors: Heiko Gensert, Arndt Peters, Horst Schneider, Helmut Wierzba, Rüdiger Scharioth
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Patent number: 6196530Abstract: Stabilizer (1) for motor vehicles which has a toroidal cross section, and which is formed of several stabilizer sections that, together, create a U-shape having a pair of U-legs (2) connected by a U-back (3) via arcuately shaped transitional shoulder areas (4). The stabilizer (1), as a pipe stabilizer, is able to withstand the required number of load cycles even under very high stress or enables even greater weight reduction under normal stresses, by important stabilizer sections having an increased strength as compared to other stabilizer sections by either dimensioning, and/or increasing the carbon content of an outer and/or inner surface layer of the stabilizer (1) by carburization, and also, optionally, by at least partially shot peening the inner surface, preferably at least in the transitional shoulder areas (4).Type: GrantFiled: May 12, 1998Date of Patent: March 6, 2001Assignee: Muhr und BenderInventors: Thomas Muhr, Leo Schnaubelt
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Patent number: 6186180Abstract: A plug-in connector, especially for hose connections and for use in motor vehicles, including a receptacle and a plug. The receptacle may be provided with an insertion opening for receiving the plug and a groove for retaining at least one locking spring which may be used to lock the receptacle and plug together. The locking spring may include at least one locking section and one unlocking section which can be actuated from the outside of the receptacle. The receptacle may also include an unlocking opening accessible from outside of the receptacle and which discharges into the groove so that the unlocking section of the unlocking spring may extends from the groove into the unlocking opening. The locking spring is retained in the groove in a manner that the locking section is moved outward in a substantially radial direction into the groove when a force is applied to the unlocking section, thus disengaging the locking section from the plug and allowing separation of the plug and the receptacle.Type: GrantFiled: May 20, 1999Date of Patent: February 13, 2001Assignee: Muhr und BenderInventors: Rudolf Möller, Mario Hufnagel
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Patent number: 6035686Abstract: A method and an installation for producing biconical wire, i.e., wire with repeating cylindrical and conical wire sections from a cylindrical starting material, in particular for producing helical compression springs inexpensively by using hot forming to form the conical wire sections. The installation has a heating unit (1) and a forming unit (2). The embodiment also includes a cooling unit (3) downstream from the heating unit (1), a cooling unit (4) downstream from the forming unit (2), a roll control (5), a re-rolling unit (6) downstream from the forming unit (2), another heating unit (7) for annealing or tempering, a cooling unit (8) downstream from the additional heating unit (7), an uncoiler (9), a roller straightening apparatus (10) and a coiler (11).Type: GrantFiled: September 29, 1998Date of Patent: March 14, 2000Assignees: Muhr und Bender, Neturen Co., Ltd.Inventors: Thomas Muhr, Andreas Kleemann, Hartmut Salje, Tesukazu Fukuhara, Takao Yamazaki
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Patent number: 5772549Abstract: The invention relates to belt tensioning device (1) with a receiver housing (2), a roller carrier (3) connected to the receiver housing (2), a spring-loaded bearing means (5) between the receiver housing (2) and the roller carrier (3), and a spring element (6) which acts between the receiver housing (2) and the roller carrier (3) for applying a tensioning force. To simplify the structure of belt tensioning device (1) and to cut production costs, according to the invention, the spring element (6) used for spring loading of the bearing means (5) in addition to being used for applying the belt tensioning force to the pulley carrier.Type: GrantFiled: December 12, 1996Date of Patent: June 30, 1998Assignee: Muhr und BenderInventors: Thomas Berndt, Joachim Jud, Asmus Koch, Uirich Roth
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Patent number: 5596790Abstract: The invention relates to a hose clamp (1) with a clamp body (3) which encloses a hose end (2) essentially in a ring with overlapping end areas (4,5). In the clamped state, the clamp body has an initial diameter, and using a clamping tool, the clamp body (3) can be spread to a second, larger diameter against its own spring force. In a first end area (4), there is a catch projection (6) which is offset rearward relative to its outer front edge (7) and which can be engaged with a second end area (5) of the clamp body (3) to achieve the spread state. The second end area (5) has a longitudinally extended recess (8) which holds first end area (4) which is correspondingly narrower. To be able to easily spread and release hose clamp (1), in a way which enables the attainment of the spread state is to be easily recognizable, a catch projection (6) is provided on the first end area (4,) in the spread state of the clamp body, rests against the front edge (10) of the second end area (5).Type: GrantFiled: November 20, 1995Date of Patent: January 28, 1997Assignee: Muhr und BenderInventor: Rudolf Moller
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Patent number: 4964326Abstract: A machine tool with a machine frame open at three sides, in the shape of the letter C, having upper and lower die supports disposed on the machine frame, a drive cradle disposed on the upper die support, a saddle plate disposed on the lower die support and a tool unit comprised or an upper die and a lower die in a guide frame. The machine tool has in particular a cutting unit or a coping unit, with T-groove coupling means being provided on the upper and lower die supports for connection with tool unit; wherein said tool unit as a whole is insertable between the upper and the lower die supports in the longitudinal direction of the machine frame from the direction of the open front end. In operations the tool unit is highly flexible because the saddle plate is rotatable in the horizontal plane with respect to the lower die support.Type: GrantFiled: October 19, 1989Date of Patent: October 23, 1990Assignee: Muhr und Bender, Maschinenbau GmbHInventor: Karl Steinhoff
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Patent number: 4930192Abstract: In a hose clamp having a resilient clamp body (2) substantially annularly surrounding one hose end and having tightening ends (6, 7) that overlap one another and are bent substantially radially away from the clamp body (2), in which a certain inside diameter prevails in the relaxed state, and the clamp body (2) can be spread apart to a considerably greater diameter counter to its own spring force with the aid of a tightening tool engaging the tightening ends (6, 7), and one tightening end (6) is embodied as an inverted U and the other tightening end (7) is embodied in protrusionlike fashion and is disposed between the U legs of one tightening end (6) with its free end approximately at the radial height of the crossbar of the U of the one tightening end (6), and the one tightening end (6), for forming a shackle (8), is bent back toward the other tightening end (7) substantially at a tangent or in a circumferentially curved manner, at a certain radial distance from the clamp body (2), and the tightening ends (6Type: GrantFiled: May 4, 1989Date of Patent: June 5, 1990Assignee: Muhr und BenderInventor: Rudolf Muhr
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Patent number: 4928377Abstract: A machine tool having a machine frame open on three sides in the shape of the letter C, comprising an upper die support, disposed on the machine frame and vertically movable by a drive cradle, with at least two die holding fixtures placed side by side and having corresponding upper dies, a lower die support disposed on the machine frame with a corresponding number of die holding fixtures placed side by side and having corresponding lower dies, and a matrix plate clamped on the lower die support, disposed in a frame containing the die holding fixtures. In this configurement, it is possible to use a self-guided tool unit in an equally flexible manner as the normal upper and lower dies, by disposing, instead of a lower die, a tool unit comprising an upper die and a lower die contained in a guide frame, such as a cutting unit or a coping unit, on a matrix plate in a corresponding die holding fixture, and to drivingly couple it with the upper die support.Type: GrantFiled: October 19, 1989Date of Patent: May 29, 1990Assignee: Muhr und Bender Maschinenbau GmbHInventor: Karl-Heinz Schulte
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Patent number: 4903985Abstract: A wheel suspension having a helical spring leg and transverse control with a shock absorber located inside of the spring arm is shown and described. The spring when in its unloaded state has an "S" shaped center line and may be curved in more than one plane. The center line of the spring when relaxed is not of a constant radius.Type: GrantFiled: October 11, 1988Date of Patent: February 27, 1990Assignee: Muhr Und BenderInventors: Karl-Heinz Muhr, Leo Schnaubelt
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Patent number: 4836009Abstract: An upper tool support (4) for a stamping machine or the like has at least two stamping tools (5) adjacently located. Each stamping tool (5) preferably includes a punch (7), a punch support (8) and a retaining nut (9) connecting the punch (7) with the punch support (8). The upper tool support (4) is provided with a support body (10), a receiving plate (11) with tool guides (12) for each stamping tool (5) disposed next to each other in the receiving plate (11), a locking cap (14). The locking cap (14) is connected to the support body (10) to be pivotable around a pivot axle (13), to be thus removable in a plane perpendicular to the direction of stamping. The upper ends of the stamping tools (5) are movably guided in the direction of stamping and limited in one direction by support flanges (15). The guidance of the stamping tools (5) is not influenced by the fastening of the locking cap (14) on the support body (10), because the locking cap (14) carries the receiving plate (11).Type: GrantFiled: October 22, 1987Date of Patent: June 6, 1989Assignee: Muhr und BenderInventor: Karl-Heinz Schulte
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Patent number: 4831865Abstract: A lower tool support for a stamping machine or the like having a lower frame and a tool saddle with a saddle plate, movably disposed on the saddle surface of the lower frame, with adjusting devices for the adjustment of the tool saddle in relation to the lower frame in the plane of the saddle surface and an arresting device for fixing the tool saddle on the lower frame being provided, the saddle plate of the tool saddle having at least one lower flange and the arresting device having at least one fastening flange formfittingly overlapping the lower flange, the fastening flange in the plane of the saddle surface having an exactly determined relative position in respect to the lower frame, thus securing the saddle plate against vertical lifting from the saddle surface.Type: GrantFiled: October 22, 1987Date of Patent: May 23, 1989Assignee: Muhr und BenderInventor: Werner Schroder
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Patent number: 4827758Abstract: An upper tool support (4) for a stamping machine or the like has at least one or several stamping tools (5) adjacently located. Each stamping tool (5) has a punch (7) a punch support (8) and a retaining nut (9) connecting the punch (7), with the punch support (8). The upper tool support (4) is provided with a support body (10), and a receiving plate (11) with a tool guide (12) for each stamping tool (5) extending in the direction of stamping. the upper end of the stamping tool (5) is limited to move in the stamping direction by support flanges (15), being thus guided in the direction of stamping. A receptacle (17) for the upper end of each stamping tool (5) is provided in the support body (10), above the tool guide (12) and below a power transfer area (16). The receptacle (17) is bridged by means of a power transfer rod (18) which is generally movable in a direction perpendicular to the stamping direction. A lifting lever (20) is provided on the support body (10) associated with each stamping tool (5).Type: GrantFiled: October 22, 1987Date of Patent: May 9, 1989Assignee: Muhr Und BenderInventor: Karl-Heinz Schulte
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Patent number: 4773129Abstract: A hose clamp (1) having a spring-loaded clamping body (2) encircling the end of the hose in a generally circular manner, and overlapping clamping ends (6, 7), where in the released state a defined inner diameter -clamping state- exists and the clamping body (2) can be spread to a considerably larger diameter against its inherent spring force by a spreading tool acting on the clamping ends (6, 7), which can be manipulated during operation without a special spreading tool because in the spread-open state of the clamping body (2) the clamping ends (6, 7) can be locked against each other and can be unlocked from each other for clamping a hose end.Type: GrantFiled: October 1, 1987Date of Patent: September 27, 1988Assignee: Muhr und BenderInventor: Rudolf Muhr
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Patent number: 4685365Abstract: An angle shear for cutting profile steel has generally parallel and spaced front and rear frame plates fixed relative to each other, at least one fixed blade carried on the front plate, a working slide displaceable vertically between the frame plates, and individual guide rails extending at an acute angle of generally 45.degree. to the vertical and secured to one of the frame plates. An angle slide displaceable along the guides generally at 45.degree. to the vertical between the plates carries a movable blade displaceable past the fixed blade. Formations link the slides for joint synchronous movement between the plates. Both slides move in generally the same plane and have front and rear faces directly confronting and engaging the front and rear plates, respectively.Type: GrantFiled: August 29, 1985Date of Patent: August 11, 1987Assignee: Muhr und BenderInventors: Richard Muhr, Werner Schroder
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Patent number: 4646604Abstract: In a machine tool, especially a punch, having a vertically movable upper tool carrier (1) with at least two punching tools (2) located next to each other and a lower tool carrier (3) with at least two punch matrixes (4) located next to each other, wherein preferably each punching tool (2) consists of a punch (5), a punch holder (6) and a retaining nut (7) connecting the punch (5) with the punch holder (6), and taking into consideration the cramped space in the upper tool carrier (1), a quick change of a punch (5) or of a punching tool (2) and/or of all punches (5) or punching tools (2) is possible, because the upper tool carrier (1) has a receiver plate (8) with a plurality of punch receivers (9) located next to each other and corresponding to the number of punching tools (2), because the punch receivers (9) are open in the direction of the front face of the upper tool carrier (1) and thereby the upper ends of the punching tools (2) or the punch holders (6) of the punching tools (2) are insertable or can be pType: GrantFiled: November 4, 1985Date of Patent: March 3, 1987Assignee: Muhr und BenderInventor: Karl Schink