Patents Represented by Attorney Peter K. Kontler
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Patent number: 5259715Abstract: A self-locking connection between the external thread of a bolt and the internal thread of a nut is established by providing at least one face of the internal and/or external thread with a self-locking portion which is adjacent the root of the respective thread. The self-locking portion has a first facet which makes with the central axis of the respective thread an angle of between 5.degree. and 30.degree., preferably an angle of between 8.degree. and 15.degree., and at least one additional facet which is adjacent the first facet and is inclined relative to the central axis at a greater second angle. The self-locking action is established in that the crest of the other thread is urged toward and is deformed against the self-locking portion of the at least one face in response to adequate axial stressing of the nut and/or the bolt. The polygonal peripheral surface of the nut has an odd number of sections not a single one of which is parallel to any other section.Type: GrantFiled: July 25, 1991Date of Patent: November 9, 1993Inventor: Anton Harle
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Patent number: 5257910Abstract: An impeller for a centrifugal pump has an axis of rotation. The impeller includes a pair of covers which cooperate to define a chamber, and blades in the chamber defining generally radial flow channels. Each of the covers has a wall which is oriented transverse to the axis of rotation. The walls are provided with cutouts at the periphery of the impeller and one cutout is associated with each flow channel. The radial lengths of the cutouts are equal to or less than one-half the lengths of the flow channels. Each flow channel and its respective cutout cooperate to define an aperture which opens to the exterior of the chamber both axially and radially.Type: GrantFiled: June 20, 1991Date of Patent: November 2, 1993Assignee: KSB AktiengesellschaftInventors: Peter Hergt, Alexander Nicklas, Salvatore Scianna
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Patent number: 5257834Abstract: A coupling for pipes having confronting ends with conical or flat outwardly extending flanges utilizes an elastomeric sealing ring which is placed between the flanges and a variable-diameter clamping device which is positioned to surround the flanges and has two radially inwardly divergent sidewalls each of which is adjacent the exposed side of one of the flanges. The conical radially inner portions of the sidewalls engage and penetrate into the external surfaces of the pipes in response to a reduction of the diameter of the clamping device, and any further reduction of the diameter entails a movement of progressively larger parts of radially outer portions of the sidewalls into engagement with the exposed sides of the adjacent flanges to bring about radial compression of a large portion of the sealing ring.Type: GrantFiled: August 15, 1991Date of Patent: November 2, 1993Assignee: Rasmussen GmbHInventors: Siegmung Zeidler, Manfred Kruger
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Patent number: 5257065Abstract: Successive exposed photographic films are connected, either individually or in groups of two or more, to discrete sheet-like leaders which are transported along an elongated first path extending through the baths and the dryer of a developing unit. The leaders are separated from the respective webs downstream of the developing unit but upstream of a copying unit for developed films, and the separated leaders are directed into a second path to be gathered in a receptacle. The separation involves severing the leading end of each web close behind the respective leader, and the thus separated webs are caused to continue to advance along the first path through a magazine and thence into the copying unit.Type: GrantFiled: July 29, 1992Date of Patent: October 26, 1993Assignee: Agfa-Gevaert AktiengesellschaftInventor: Erich Nagel
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Patent number: 5253390Abstract: A hinge for an article of furniture has a mount which is attachable to a wall of the article. A hinge unit including a hinge arm and, optionally, a support for the arm is releasably connectible to the mount. To this end, the hinge unit is provided with a shaft which is receivable in a complementary recess of the mount. The hinge unit is further provided with a resilient tongue, and the tongue has a groove which cooperates with a projection on the mount to lock the hinge unit to the mount by snap action. A lever projects at an angle from both sides of the hinge unit, and the free end of each lever carries an arm which extends towards the tongue. An inclined protuberance is provided on either side of the tongue and each lever arm abuts a respective protuberance. The arrangement is such that, when the levers are urged towards one another, the lever arms cooperate with the protuberances to disengage the groove in the tongue from the projection on the mount.Type: GrantFiled: March 21, 1992Date of Patent: October 19, 1993Assignee: Paul Hettich GmbH & Co.Inventors: Jurgen Gross, Gunter Sundermeier, Ulrich Beneke, Dieter Waltemate, Detlev Uthoff
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Patent number: 5253011Abstract: A strip of exposed and developed film has a series of exposures and corresponding exposure identification numbers. The strip is conveyed through a scanning station on its way to a printing station. The exposures and identification numbers are scanned in the scanning station to produce output signals indicative of density changes. The signals are processed to generate groups of data which are combined into a data set. Each group includes the position of a respective exposure on the strip, the identification number for the exposure and the position of the identification number on the strip. Film transport is carried out in such a manner that scanning of the strip and processing of the resulting signals are completed before arrival of the strip at the printing station. A control unit uses the data set to position the exposures in the printing station and to print the exposures. The control unit also uses the data set to mark a copy of an exposure with the identification number of the exposure.Type: GrantFiled: February 11, 1992Date of Patent: October 12, 1993Assignee: AGFA-Gevaert AktiengesellschaftInventors: Wolfgang Zahn, Wilhelm Nitsch, Gunther Schnall, Gerhard Benker
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Patent number: 5251585Abstract: A two-armed lever which can be used as a rocker arm in the valve mechanism of a combustion engine has a central portion defining a rectangular passage for reception of a cam-actuated bearing on the rocker arm shaft. The first arm of the lever has a cupped motion receiving first portion which receives the complementary head of a push rod, and a second portion having an H-shaped cross-sectional outline and located between the cupped portion and the walls surrounding the passage in the central portion of the lever. The other arm of the lever has a first portion provided with an arcuate surface serving to transmit motion to the shank of an exhaust valve, and a second portion having an H-shaped cross-sectional outline and disposed between the first portion of the second lever and the walls surrounding the passage.Type: GrantFiled: February 1, 1993Date of Patent: October 12, 1993Assignee: Erich Neumayer GmbH & Co. K.G.Inventor: Andreas Graber
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Patent number: 5251643Abstract: A multipolar cardiac pacemaker lead wherein the distal end carries a first electrode and at least one sleeve-like additional electrode is provided between the first electrode and the proximal end. Each additional electrode is positively connected with a corresponding helically wound wire-like conductor of the lead by a tubular conductor within an insulating sheath of the lead and by one or more flexible metallic bands each of which has a distal portion soldered or welded to the internal surface of the respective additional electrode, a second portion soldered or welded to the respective tubular conductor, and an S-shaped or Z-shaped intermediate portion extending between and contacting the adjacent convolutions of the respective wire-like conductor. Each tubular conductor is welded or soldered to at least one adjacent convolution of the corresponding wire-like conductor. The wire-like conductors are electrically insulated from each other.Type: GrantFiled: November 19, 1991Date of Patent: October 12, 1993Inventor: Peter Osypka
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Patent number: 5250975Abstract: Apparatus for simultaneously treating two or more webs of photosensitive material has a tank with sets of pulleys for advancement of discrete webs. The sets of pulleys are installed in discrete compartments which are separated from each other by one or more light-intercepting partitions having one or more passages for the flow of liquid but preventing the penetration of light. Each set of pulleys is driven by a discrete motor or by a discrete clutch receiving torque from a single prime mover. The compartments are sealed by discrete closures. If the parts which are used to advance and treat a particular web happen to be defective or require attention for any other reason, the respective set of pulleys is arrested while the other set or sets of pulleys continue to transport the respective web or webs, and the cover for the compartment which confines the arrested set of pulleys is removed to afford access to the respective compartment.Type: GrantFiled: June 3, 1992Date of Patent: October 5, 1993Assignee: Agfa-Gevaert AktiengesellschaftInventors: Lutz Beckmann, Viktor Osegowitsch
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Patent number: 5248887Abstract: A length of exposed film has a timing track which extends along one of the longitudinal margins thereof. The timing track includes a begin segment having a first width, an end segment having a different second width and a grating between the segments. The grating consists of alternating light and dark segments having a uniform width different from the widths of the begin and end segments. The two longitudinal margins of the film are scanned by respective sensors as the film advances towards a film processing apparatus. Whenever a segment passes by a sensor, the width of the segment and its position in the timing track are recorded. Since the widths of the begin and end segments differ from the width of the grating segments, the position of the begin or end segment relative to the grating can be established. This information, combined with a knowledge of which sensor detected the timing track, makes it possible to determine the orientation of the film.Type: GrantFiled: May 1, 1992Date of Patent: September 28, 1993Assignee: AGFA-Gevaert AktiengesellschaftInventor: Knut Oberhardt
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Patent number: 5247865Abstract: Apparatus for subdividing a running web into narrower webs has a counterknife which is driven to rotate about a substantially horizontal axis. A second knife is freely rotatably mounted in a holder at a level above the counterknife. The holder is carried by the lower end of a vertically movable and turnable rod-like guide which can be moved up and down by a single-acting fluid-operated motor in cooperation with two springs or sets of springs. When the guide reaches its lower end position, the motor causes a conical end face at the lower end of a split sleeve to engage a complementary conical face at the upper end of a fixed guide member for the guide, whereby the sleeve clampingly engages the guide and locks it to the stationary cylinder of the motor so that the second knife is fixedly held at the selected level for any desired interval of time.Type: GrantFiled: September 22, 1992Date of Patent: September 28, 1993Assignee: E. C. H. Will GmbHInventors: Holger Kroger, Dieter Stolley
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Patent number: 5248234Abstract: Stacks consisting of selected numbers of neighboring signatures are bound together by at least two rows of stitches. The thread which is used to form the rows of stitches is severed subsequent to completed assembly of a stack and following partial assembly of the next-following stack. It is preferred to assemble at least two signatures of the next-following stack prior to severing of the thread between the finished stack and the growing stack.Type: GrantFiled: September 1, 1992Date of Patent: September 28, 1993Assignee: GRAPHA-Holding AGInventor: Hans Hollenstein
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Patent number: 5248375Abstract: Two parallel webs of wrapping material are advanced toward the inlet of a wrapping mechanism in a twin cigarette rod making, filter rod making or like machine adjacent a paster with two wheel-shaped rotary applicators which apply strips of adhesive to selected marginal portions of the respective webs. The applicators receive adhesive from discrete rotary adhesive supplying members which, in turn, receive adhesive from a tandem pump. The applicators are installed at a level below the wrapping mechanism to reduce the likelihood of contamination of such mechanism by sprays or droplets of adhesive. The webs are draped around discrete tobacco-containing or filter material-containing rods, and the adhesive-coated marginal portions of the webs are folded over the other marginal portions to form seams which extend in parallelism with the axes of the resulting cigarette rods or filter rods.Type: GrantFiled: April 23, 1992Date of Patent: September 28, 1993Assignee: Korber AGInventor: Wolfgang Steiniger
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Patent number: 5246398Abstract: A clutch plate for use in friction clutches has an output component in the form of a hub which is connectable to the input shaft of a variable-speed transmission, and an input component in the form of two spaced-apart disc-shaped walls which receive torque from a flywheel when the clutch is engaged. Two dampers are installed between the input and output components, and two diaphragm springs are provided to maintain the members of one damper and the elements of the other damper in proper axial positions relative to each other and relative to the components of the clutch plate. Plastic inserts are used to reduce wear upon metallic parts. One of the dampers is operative alone during a first stage of angular movement of the input and output components relative to each other, and the other damper is operative alone during the next-following stage of such angular movement.Type: GrantFiled: June 5, 1989Date of Patent: September 21, 1993Assignee: LuK Lamellen und Kupplungsbau GmbHInventors: Albert Birk, Michael Bosse
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Patent number: 5245922Abstract: A screen printing machine with one or more printing units each of which has a screen and at least one squeegee above a portion of the path for a movable web of paper or the like. The positions of the screens are adjustable by carriages which support the frames for the screens and receive motion from sets of motors which respond to signals from a computer. The latter receives signals from cameras which are adjacent the path of movement of the web and monitor alignment marks (if any) on the web and/or the position of printed matter on the web.Type: GrantFiled: November 26, 1991Date of Patent: September 21, 1993Assignee: Gerhard Klemm Maschinenfabrik GmbH & Co.Inventor: Gerhard Klemm
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Patent number: 5245724Abstract: Apparatus for wringing mops, sheets, strips or other wet commodities has a housing which can be placed on top of a bucket and contains a first roller and a second roller movable radially toward and away from the first roller. The mechanism for moving the second roller toward the first roller comprises a pivotable lever which can turn two sector-shaped collecting elements each connected to the trailing end of a discrete flexible elastic pusher the front end of which engages a bearing for the second roller. The pushers are confined to movement along selected paths while they push the second roller toward the first roller so that the rollers cooperate to expel moisture from a commodity between them at a rate which is determined by the selected position of the lever. The first roller can be driven to move a commodity between the rollers upwardly, and springs are provided to pull the second roller away from the first roller.Type: GrantFiled: July 16, 1991Date of Patent: September 21, 1993Inventor: Dieter Sacks
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Patent number: D339499Type: GrantFiled: August 15, 1991Date of Patent: September 21, 1993Assignee: Robert Krups GmbH & Co. KGInventor: Florian Seiffert
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Patent number: D339711Type: GrantFiled: December 12, 1990Date of Patent: September 28, 1993Assignee: Robert Krups GmbH. & Co. KG.Inventors: Hans-Jurgen Precht, Elmar Schuller
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Patent number: D340162Type: GrantFiled: October 31, 1991Date of Patent: October 12, 1993Assignee: Robert Krups GmbH & Co. KGInventor: Gunter Storsberg
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Patent number: D340605Type: GrantFiled: March 4, 1992Date of Patent: October 26, 1993Assignee: Ada Hotelcosmetic GmbHInventor: Robert Feigenbaum