Patents Issued in December 20, 1983
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Patent number: 4420887Abstract: A micrometer wherein a rotary knob and a pinion are threadably coupled to each other, further, a resilient member for functioning as a constant pressure is interposed between the rotary knob and the pinion, and, when the rotary knob is rotated by a value of distortion of the resilient member after a spindle having a rack meshed with the pinion is abutted against a workpiece to be measured and stopped, the rotary knob is moved in a direction of the rotary shaft thereof, whereby a portion of the rotary knob is abutted against a main frame, thereby acting as a locking function.Type: GrantFiled: July 13, 1982Date of Patent: December 20, 1983Assignee: Mitutoyo Mfg. Co., Ltd.Inventors: Hideo Sakata, Ichiro Mizuno, Masao Nakahara, Takasi Sanpei
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Patent number: 4420888Abstract: A dial gauge wherein a mechanism for imparting a displacement of a spindle is simplified in arrangement.In this dial gauge, a link is rotated by a driving piece secured to the spindle, and a rotational value of this link is imparted to a cam member connected to a hand through a reciprocating member, so that the displacement of the spindle can be indicated.Type: GrantFiled: June 4, 1982Date of Patent: December 20, 1983Assignee: Mitutoyo Mfg. Co., Ltd.Inventors: Masato Wakao, Iwao Sugizaki
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Patent number: 4420889Abstract: A manual plug comparator for checking the diameter of holes of mechanical parts, comprising a support, a movable measurement unit and a protective casing. The movable measurement unit comprises two movable arms respectively bearing feeler elements which come into contact with the parts to be checked. A position transducer detects the position of the movable arms and is connected by an electric cord to an electric supply, detection and indication group. A base plate fastened to the casing has an opening adapted to permit the introduction of air under pressure into the plug. The flow of air passes through the inside of the plug, removing any foreign matter and emerges through other openings provided in the support.Type: GrantFiled: May 29, 1981Date of Patent: December 20, 1983Assignee: Finike Italiana Marposs S.p.A.Inventors: Mario Possati, Guido Golinelli, Narciso Selleri
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Patent number: 4420890Abstract: A backgauge locator which provides manual adjustment of the backgauge relative to the die elements of a machine tool press brake. When used in pairs, each probe tip is contiguous with the outer edge of the workpiece to prevent parallel misalignment. The body is slideably attached to the machine tool backgauge to compensate for varying widths of the workpiece having an over-center spring loaded cam for manual positioning. A probe is pivotally located in the body and spring loaded to engage a micrometer head providing controlled linear movement. The probe pivots upward to allow for secondary bends of the workpiece without damaging the precision micrometer head and the tension spring also acts as a return mechanism to reposition the probe when the workpiece is removed.Type: GrantFiled: February 22, 1982Date of Patent: December 20, 1983Inventor: Nelson A. Naylor
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Patent number: 4420891Abstract: A framing and layout square of flat unitary construction is provided exhibiting a number of unique and innovative features. The square includes an elongated blade, an elongated slot defined in the blade and parallel to the edges of the blade to provide two additional edges for the marking of measurement scales, a tongue joined at a right angle to the blade and provided with a terminal edge set at a forty-five degree angle to the tongue's lateral edges and adapted to provide a pivot point for the measurement of angles.Type: GrantFiled: August 5, 1981Date of Patent: December 20, 1983Assignee: Richard B. CogswellInventor: Howard L. Orem
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Patent number: 4420892Abstract: The thin film contact dryer consists of a rotor having flat rotor elements extending in a radial direction. In the central third of the rotor is arranged at least one combination of distributing elements and an annular weir which revolves with the rotor and leaves a narrow annular gap open to the internal dryer wall, the annular weir being arranged immediately downstream of the distributing elements as viewed in the direction of flow.Type: GrantFiled: January 29, 1982Date of Patent: December 20, 1983Assignee: Bayer AktiengesellschaftInventors: Burkhard Braun, Bernhard Vosteen, Reiner Skerhut, Adolf Sinn
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Patent number: 4420893Abstract: A system for supplying air to the interior of a shoe, particularly of a skiing boot for Alpine skiing is disclosed. The shoe or skiing boot comprises a shell and a gaiter, which is pivoted to the shell and pivotally movable in the longitudinal direction of the shoe. An air-handling device is mounted on the shell of the shoe and is connected to actuating means. The latter is also connected to the gaiter and during a forward and rearward pivotal movement of the gaiter move up and down to impart a pumping motion to the air-handling device so that air is pumped into the interior of the shoe. The air inlet is preferably disposed near the sole of the shoe.Type: GrantFiled: November 10, 1981Date of Patent: December 20, 1983Assignee: Fischer Gesellschaft M.B.H.Inventor: Walter Stephan
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Patent number: 4420894Abstract: A shoe having an insole with an upper and an outsole, the insole and outsole permanently fixed together by attaching members extending from the insole, which members are retained in corresponding receiving sockets in the outsole.Type: GrantFiled: April 19, 1982Date of Patent: December 20, 1983Inventor: Joel Glassman
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Patent number: 4420895Abstract: A ski boot comprising a boot part to receiver a wearer's foot and a leg engaging part which extends upwards from and is hinged to the boot part at a hinge point, said leg engaging part being shaped and positioned so as to at least partially grip around the knee joint of the wearer.Type: GrantFiled: July 23, 1980Date of Patent: December 20, 1983Inventors: Peter Baumann, Lutz Biedermann
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Patent number: 4420896Abstract: An electroscopic display device includes a plurality of small, moveable plates which are each electrostatically deflectable from a resting position, at a rear surface of a display cell, to a display position adjacent to a viewable front surface of the cell. A portion of the electrode structure remains fixedly adjacent to the cell rear surface and a second electrode is positioned fixedly adjacent to the front surface. Light entering through the rear of the cell is internally reflected before exiting through the front surface, only if the moveable electrode portion has been electrostatically attracted to the fixed front electrode. The display device is fabricated by masking and subsequent etching of a plurality of layers formed upon the surface of a display substrate, to provide the moveable electrode, spring and fixed electrode as an integrated structure.Type: GrantFiled: September 17, 1981Date of Patent: December 20, 1983Assignee: General Electric CompanyInventor: Donald E. Castleberry
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Patent number: 4420897Abstract: An electroscopic display cell in which stationary and moveable plate electrodes are fabricated upon a single substrate to provide a display with operating characteristics independent of cell thickness. The stationary electrodes are overcoated with a dielectric layer and a conductive plate electrode structure is thereafter fabricated upon the dielectric layer. Each electrode plate has a rest position determined by support members affixed to the dielectric layer and independent of the spacing between the single substrate and another substrate, which serves only to contain a display fluid.Type: GrantFiled: March 18, 1982Date of Patent: December 20, 1983Assignee: General Electric CompanyInventor: Donald E. Castleberry
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Patent number: 4420898Abstract: An "EXIT" sign utilizes a flat fluorescent lamp for illuminating the word "EXIT" through a stencil. The sign also includes a phosphorescent material which cooperates with the stencil to display the word "EXIT" when power to the lamp is cut.Type: GrantFiled: March 1, 1982Date of Patent: December 20, 1983Inventor: John R. Moses
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Patent number: 4420899Abstract: A combined function mechanism for an automatic pistol including a magazine and a magazine housing, which mechanism interrupts the kinematic chain between the trigger and the hammer when the magazine is not fully engaged within its housing, thereby preventing operation of the hammer by the trigger, the mechanism also serving to eject the magazine from the housing when the magazine locking/unlocking device is actuated.Type: GrantFiled: September 2, 1981Date of Patent: December 20, 1983Assignee: Fabrique Nationale HerstalInventors: Maurice V. Bourlet, Jean-Pierre H. Storder
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Patent number: 4420900Abstract: An electric fishing jigger for alternately raising and lowering a fishing line in an irregular fashion has an electric motor driving an offset resilient arm to which the fishing line is detachably engaged. The motor is powered by batteries and both are encased and attached to a fishing rod. A line activated alarm switch alerts the operator when a fish takes the bait.Type: GrantFiled: May 11, 1981Date of Patent: December 20, 1983Inventor: John M. Nestor
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Patent number: 4420901Abstract: A mobile implement for flame treating soil. The implement includes an elongated tube member for being pulled over the ground to be treated, a scoop for digging soil from the ground as the tube member is pulled thereover, an auger or screw for conveying the soil through the tube, and a burner for subjecting the soil being conveyed through the tube member to flame substantially along the entire length of the tube member.Type: GrantFiled: February 8, 1982Date of Patent: December 20, 1983Inventor: Howard Y. Clarke
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Patent number: 4420902Abstract: A modular planting apparatus which includes a plurality of tubular modules having access slots in the tops of the side walls and connectors for joining adjacent modules.Type: GrantFiled: September 29, 1981Date of Patent: December 20, 1983Inventor: Maxwell A. Rayner
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Patent number: 4420903Abstract: A portable container for living botanicals such as rooting plants, bulbs or seedlings, composed in part of either inert and/or biodegradable fillers, characterized by securing the plant and its root structure against dislocation while insuring adequate access to water and/or nutrient vapors. Use is made of soiless growth media may be in a plant net container or a natural soil as the media, for initial plant growth and in a larger pot container for sustained plant growth. The larger soiless media portion is molded in two halves whereby the net rooting container may be compressibly secured in place by molded flaps. A given young plant may continue growing therein, suffering little or no shock in the shipping and transplanting process. Water and/or nutrient overfill is precluded by coactive relationship between an overfill tube and the larger soiless media portion.Type: GrantFiled: April 23, 1982Date of Patent: December 20, 1983Assignee: Far West Botanicals, Inc.Inventors: Alexander S. Ritter, James A. Lee
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Patent number: 4420904Abstract: A device for feeding potted plants, consisting of a plant pot comprising a slot for the introduction of a wick, the said wick being attached to a tongue forming part of an adapter, a device for varying the level of the plant pot arrangement in a re-potting unit and a level indicator.Type: GrantFiled: March 30, 1983Date of Patent: December 20, 1983Assignee: International Standard Electric CorporationInventors: Siegfried Joswig, Johannes Liebscher, Peter Keils, Peter Tiwi
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Patent number: 4420905Abstract: A latching mechanism for a window or door closure hingedly mounted on a fixed frame comprising a control cam and catch fixed to the hinged side of the frame, a driving rod slidably mounted on the closure, a dog mounted on one end of the driving rod for latchingly engaging the catch, and a cam follow mechanism connected to the opposite side of the driving rod for engaging the control cam so that the dog is moved by the driving rod in latching alignment with the catch when the closure is moved to the closed position relative to the frame.Type: GrantFiled: March 20, 1980Date of Patent: December 20, 1983Assignee: Siegenia-Frank KGInventor: Eckard Kucharczyk
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Patent number: 4420906Abstract: A regulator for the window glass of a motor vehicle comprising a guide bracket, means for moving the guide bracket generally vertically between raised and lowered position and a floating bracket pivotally connected to a guide bracket about a generally horizontal axis extending longitudinally of the vehicle and adjacent the lower edge portion of the glass to provide for changing orientation of the glass about the aforesaid axis as the glass is raised and lowered.Type: GrantFiled: October 26, 1981Date of Patent: December 20, 1983Assignee: Ferro Manufacturing CorporationInventor: Joseph Pickles
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Patent number: 4420907Abstract: A shallow two inch deep double hung window which is sufficiently water and wind resistant to replace jalousies, which can be used in cabana walls and which fits screen porches, utilizing existing screening. Block and tackle sash balance counter balance the weight of individual panels and provide a lateral resilient action to maintain panels in position. A double action leaf spring stop for each panel selectively disengages the sash balances therefrom so that by moving a panel laterally it is removable. Window and panel frame members consist of aluminum extrusions which facilitate construction of custom windows made to selected sizes. Inside or outside flanges for securing the window to the wall structure are optionally provided.Type: GrantFiled: December 18, 1980Date of Patent: December 20, 1983Assignee: Windows, Inc.Inventor: Charles A. Swan
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Patent number: 4420908Abstract: The buffing wheel comprises a wheel body, abrasive-containing flexible material secured to the wheel body, and a drive shaft non-rotatably connected to the wheel body. The drive shaft comprises a flexible portion. A rigid member is carried by said drive shaft and slidable relative thereto between an inoperative position, in which said drive shaft is flexible, and a stiffening position, in which said rigid member stiffens said drive shaft.Type: GrantFiled: October 15, 1981Date of Patent: December 20, 1983Inventors: Reinhold Reiling, Karl Reiling
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Patent number: 4420909Abstract: The wafering system employs a chuck assembly for moving a severed wafer from a crystal through the aperture in the cutting blade to a take-off conveyor. The chuck assembly includes a suction head which is pivotally mounted via a pivot arm assembly, a slide for moving the head back and forth and a carriage for vertically moving the head up and down. A motor is used to actuate the carriage while air cylinders are used to actuate the slide and pivot arm assembly.Type: GrantFiled: November 10, 1981Date of Patent: December 20, 1983Assignee: Silicon Technology CorporationInventor: Robert E. Steere, Jr.
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Patent number: 4420910Abstract: A device for controlling the feeding of a grinding wheel (2, 16) relative to a truing device (8, 19) for the grinding wheel at truing operations in a grinding machine incorporating a measuring apparatus (9, 9a) for indicating the finished size of the ground surface of the workpiece (5, 12), means for controlling the feeding using the indications obtained, means for setting the operation cycle of the machine thus that truing of the grinding wheel is effected after a predetermined number of grinding operations by means of a truing device, which is mounted in a fixed position on the workhead and arranged in such a manner as to follow the movements of the workpiece during the grinding procedure, first members (24, 31) for establishing the position of the grinding wheel spindle relative to the workpiece and the truing device and second members for controlling the relative movement between the workpiece truing device and the grinding wheel during the truing a pre-determined distance characterized by that it incorpoType: GrantFiled: May 4, 1981Date of Patent: December 20, 1983Assignee: Lidkopings Mekaniska Verkstads ABInventor: Sture Larsson
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Patent number: 4420911Abstract: A work piece holder assembly for moving a work piece along a selected annular path relative to a predetermined fixed position of a work tool. The assembly includes a base member having a concavely arcuate shaped guide track, a saddle member slidably mounted on the base member for movement on the guide track, and a work piece mount for attaching the work piece to the saddle member in a predetermined relation with respect to the work tool.Type: GrantFiled: November 20, 1978Date of Patent: December 20, 1983Inventor: Jan D. Michael
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Patent number: 4420912Abstract: An apparatus for holding of workpieces with at least one vertical bore, particularly for holding a connecting rod, for a honing operation. The apparatus includes two workpiece receiving plates between which the workpiece is insertable with horizontal and vertical play. The workpiece receiving plates have an opening for receiving the honing tool. A holding device is provided and is fixable relative to a workpiece receiving plate; vertically the holding device engages the workpiece free of play at a slight engagement pressure. The holding device is freely movable toward the workpiece in a first direction, and is immovable in the opposite direction. The honing device comprises at least one angle lever, which is tiltable or pivotally journalled relative to a workpiece receiving plate, has one arm engaging against the workpiece, and has the other arm connected with a device which restrains the angle lever in the release or loosening direction.Type: GrantFiled: February 27, 1981Date of Patent: December 20, 1983Assignee: Maschinenfabrik Gehring Gesellschaft mit beschrankter Haftung & Co. KommanditgesellschaftInventor: Heinz Gehring
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Patent number: 4420913Abstract: An apparatus and method for covering the ridge or peak of a metalroof system is disclosed. After the metal roofing panels are set in place on the sloping surfaces of the roof and seamed together, mating halves of a ridge panel are positioned along the ridge and parallel thereto. The mating halves have cut-outs corresponding to the rib seams of the roofing panels, the cut-outs each being covered by a seam cap. After the ridge panel halves are secured to the roofing panels, the interlocking joint between them is folded over and permanently seamed together. Finally, the areas at the ends of the ridge adjacent the rakes of the building are covered by filler panels. The filler panels have cut-outs corresponding to the rib seam of the ridge panel, and the cut-outs are similarly covered by seam caps.Type: GrantFiled: July 20, 1981Date of Patent: December 20, 1983Assignee: AMCA InternationalInventors: Gene M. Long, Terry E. DeWitt, John R. Bell, III
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Patent number: 4420914Abstract: An improved peripheral closure joint for sealing spherical shell segments to a supporting structure therefor is provided which comprises a generally frustoconical member having an annular groove on the smaller circumference thereof for receiving the peripheral edge of the shell segment and means on the outer periphery thereof for engaging the supporting structure without slippage, said means including a plurality of annular corrugations on the peripheral edge of said frustoconical member and mating corrugations on a supporting surface of said structure to allow said member limited rolling engagement with said surface as said member flexes under an applied load. The frustoconical member is preferably configured to transmit the applied load substantially perpendicular to said surface, and tangent to the spherical shell.Type: GrantFiled: November 23, 1981Date of Patent: December 20, 1983Assignee: The United States of America as represented by the Secretary of the Air ForceInventor: W. Wayne Williams
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Patent number: 4420915Abstract: A concrete wall bearing component having one or more relatively large failure panel sections therein each defined by a thin weakness band and being of such size as to blow out of the panel along the weakness band when subjected to a blast, while leaving enough of the panel to support the load normally supported by the panel, and a wall formed of said bearing components. The invention differs from the prior art in making lighter panels not by increasing the strength and thus the weight.Type: GrantFiled: April 14, 1980Date of Patent: December 20, 1983Assignee: Dyform Engineering Ltd.Inventor: Boris Netupsky
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Patent number: 4420916Abstract: A method and apparatus for aligning and securing auxiliary equipment and structures with respect to a well drilling platform comprising a pair of elongated hydraulic jacks spaced apart in a non-parallel configuration, said jacks being pivotally secured between the base portions of the drilling platform and the auxiliary structure and lying in a substantially horizontal plane, whereupon, activation of the jacks pulls the auxiliary structure into substantial alignment and spacing with respect to the drilling platform. Upon alignment and spacing, a pair of pivotal connecting links secures the base portion of the structure to the base portion of the platform and including a pair of longitudinally adjustable upper connecting links secured between the upper portions of the platform and the structure whereby adjustment in length of said upper connecting links compensates for a slightly unlevel drilling site, said auxiliary structure serving to stabilize said platform against side loads.Type: GrantFiled: November 20, 1981Date of Patent: December 20, 1983Assignee: Muskogee Environmental Conservation Co.Inventor: William H. Ricketts
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Patent number: 4420917Abstract: A guyline tensioner for communication towers is provided wherein the towers are of the type having a plurality of nested sections which are raised and lowered by a telescoping action. The device of the present invention provides a guying means so that as the tower is raised or lowered, a single operator can maintain equal tension on all of the guys at the same time.Type: GrantFiled: December 28, 1981Date of Patent: December 20, 1983Inventor: Conrad A. Parlanti
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Patent number: 4420918Abstract: A stake is provided in the form of a smooth cylindrical metal rod which has a point at its lower end and to which is welded a screw thread formed by a helical spring having a polygonal cross-section, preferably a square section, which is welded to the rod at a limited number of spaced-apart points, at least a part of the spring being thus free to move with respect to the rod. Preferably, only the lower end of the spring is welded to the rod. The stake is more especially, but not exclusively, usable for measuring the electrical resistances of ground connections.Type: GrantFiled: October 19, 1981Date of Patent: December 20, 1983Assignee: Societe en Commandite par actions dite: Chauvin ArnouxInventors: Daniel Arnoux, Andre Leconte, Claude Genter, Bernard Michel
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Patent number: 4420919Abstract: A wall opening frame member (10, 79) for framing doors, windows, and the like having an exterior side (14) and an interior side (16). The frame member (10) has a metal frame (18) that preferably has at least one structural heat transfer barrier (52, 62) whereby no unbroken metallic heat transfer path exists between the exterior side (14) and the interior side (16). A wood facing (20) is adapted to cover all substantial interior surfaces of the metal frame (18) when the metal frame (18) is in use. Means are provided for attaching wood facing (20) to the interior surfaces of the metal frame (18) so that no substantial surface of the metal frame (18) is exposed to the inside ambient air and the transfer of heat between the exterior side and the interior ambient air of the frame member (10) is inhibited.Type: GrantFiled: August 17, 1981Date of Patent: December 20, 1983Assignee: Wausau Metals CorporationInventor: Ronald J. Weber
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Patent number: 4420920Abstract: This invention is concerned with cored extruded plastics profiles, suitable for use in the manufacture of frames for windows and the like, comprising a core of shape-retaining material and a cladding of plastics material extruded therearound. The invention is also concerned with methods of manufacturing frames for windows or the like from such profiles, including methods of forming the corner joints of said frames, and with glazing clips particularly suitable for use in assembling glass or other panels in said frames.Type: GrantFiled: April 29, 1981Date of Patent: December 20, 1983Inventor: Michael J. Hewitt
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Patent number: 4420921Abstract: A spacing tool provides for the positive holding and spacing of structural members, such as 2.times.4s, that is simple and easy to use and positively holds the structural members in place for nailing or fastening, while straightening any bows or twists therein. First and second jaw assemblies each include a pair of jaws extending from a first end thereof, the jaws of each pair being spaced from each other a fixed distance. A locking lever is disposed between the jaw assemblies second ends, and is pivotally mounted to the jaw assemblies to move them from a second, unlocked position wherein they are not in-line and the jaws are not spaced from each other a fixed, predetermined distance, to a first, locked position where they are substantially in-line and overlap and the jaws are spaced from each other a fixed predetermined distance to space structural members.Type: GrantFiled: April 12, 1982Date of Patent: December 20, 1983Inventor: Isaac H. Hardin
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Patent number: 4420922Abstract: Structural sections comprising two spaced apart parts defining an intervening evacuatable void, the parts affording a high degree of thermal and acoustical insulation due in part to the vacuum but also to the minimal contact between the two parts. The parts are held apart against atmospheric pressure through the use of line or point contact formed in a particular manner to minimize thermal and acoustical conduction at the contacting surfaces.Type: GrantFiled: December 18, 1980Date of Patent: December 20, 1983Inventor: Pryce Wilson
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Patent number: 4420923Abstract: A method and apparatus are proposed for the combined guidance, incorporating a register, of two continuously advanced foil strips, such as when attaching a foil cover strip to a lower foil strip including container-like recesses. The foil cover strip is preferably of aluminum and has printed legends which must be oriented precisely with respect to the container-like recesses of the lower foil strip. A marking is associated with each legend for scanning by a photo cell. The distribution of the legends and thus of the markings is somewhat closer together than the distribution of the container-like recesses. By stretching the foil cover strip, the distribution of the legends and of the markings can be adapted to the distribution of the container-like recesses.Type: GrantFiled: October 21, 1981Date of Patent: December 20, 1983Assignee: Robert Bosch GmbHInventor: Theo Moser
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Patent number: 4420924Abstract: A method and apparatus for handling and applying formed flanged lids to a carton is disclosed. Inverted lids drop on an upper conveyor belt directly from a forming machine for travel in a first direction. The lids subsequently drop and flip to the desired upright position on a lower conveyor belt for movement toward a lidding station. To prevent over-flipping, the trailing edge is guided by a vertical guide plate. An idler belt is positioned downstream of the second conveyor belt and above the feed path. A lug on the idler belt engages the leading edge of the lid being transferred from the second conveyor belt. The lug holds the lid in proper alignment for driving forwardly by abutting engagement of the carton intersecting with the leading edge of the lid. The idler belt is carried by a pair of idler rollers. An adjustable brake on one of the rollers controls the drag on the belt to restrain the lid and assure positive lidding action on the carton.Type: GrantFiled: September 1, 1981Date of Patent: December 20, 1983Assignee: Kliklok CorporationInventors: S. Johannes Hoyrup, Karl A. Krause
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Patent number: 4420925Abstract: A lawnmower attachment for providing an increased cutting width on a lawnmower uses a mower deck attachable by means of a hitch to the back of a riding lawnmower, or other pulling unit, and includes the use of at least two additional lawnmower cutting blades operably powered by an independent motor mounted on the mower deck. A pair of guide wheels mounted in a spaced apart relationship are provided to support the mower deck off the ground, while a non-horizontally pivotable hitch arrangement is provided to prevent jackknifing of the attachment during a reverse movement of the riding lawnmower.Type: GrantFiled: February 25, 1981Date of Patent: December 20, 1983Assignee: Branson, Jones & BransonInventor: Kenneth Webster
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Patent number: 4420926Abstract: A twisting spindle driven by an individual electric motor wherein fastening of the body of the motor as well as maintaining and guiding of the barrel of the spindle are effected via a rigid sleeve surrounding the barrel, the sleeve passing through the frame and serving as a cage for anti-friction bearings which permit rotation of the spindle, and having at its ends two collars, one fastened elastically to the frame and the other rigidly connected to the body or stator of the motor.Type: GrantFiled: June 21, 1982Date of Patent: December 20, 1983Assignee: ASA S.A.Inventor: Jean Remontet
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Patent number: 4420927Abstract: The invention concerns an improved process for the manufacture of a fancy yarn, in particular of the crepe effect and of the kind where a multifilamentary yarn is overtwisted, then subjected to a false-twist texturing treatment carried out in the same twisting direction as the overtwist, which is characterized in that the basic multifilamentary yarn is a partly stretched synthetic yarn, and the complementary stretching is carried out simultaneously with the false-twist texturing.Type: GrantFiled: October 14, 1981Date of Patent: December 20, 1983Inventor: Pierre Payen
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Patent number: 4420928Abstract: Apparatus for manufacturing a yarn comprises two juxtaposed closely spaced apart suction drums, which rotate in the same sense and have confronting suction zones for producing a suction flow. This pulls the yarn more deeply into the triangular space between the suction drums. A drawing frame for drawing a roving that is to be pulled through the triangular space between the suction drums is disposed near one end of the suction drums. To permit the manufacture of a strong yarn without a supply of covering fibers, the two suction drums are provided with peripherally extending, confronting annular zones for roughening the roving and pulling ends fibers out of the roving. These annular zones are axially spaced from that end of the suction drums from which the yarn is withdrawn.Type: GrantFiled: January 21, 1982Date of Patent: December 20, 1983Inventor: Ernst Fehrer
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Patent number: 4420929Abstract: A gas turbine combustor arrangement involves two combustion chambers separated by a necked down throat portion with provision for fuel introduction into each of the chambers. Initially, fuel is introduced into the first chamber and ignited. Thereafter, fuel is introduced into the second chamber until the total fuel flow to the combustor is at the desired rate. Burning in the first chamber is then extinguished by shifting fuel flow to the second chamber and after burning termination, the fuel distribution is reversed until a low emission operation is realized. Apparatus for carrying out the foregoing method and a high load ingition system is also disclosed.Type: GrantFiled: October 6, 1980Date of Patent: December 20, 1983Assignee: General Electric CompanyInventors: Robert A. Jorgensen, Roger A. Farrell, Bruce W. Gerhold
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Patent number: 4420930Abstract: Process for operating a furnace or a combustion engine which comprises burning in said furnace or said combustion engine a mixture of polycyclic, polycarboxylic acids obtained by oxidizing coal with aqueous nitric acid, separating from the resulting product an aqueous phase and a solid phase and then extracting the solid phase with a solvent to recover said mixture.Type: GrantFiled: February 9, 1981Date of Patent: December 20, 1983Assignee: Gulf Research & Development CompanyInventors: Harold Beuther, Johann G. Schulz
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Patent number: 4420931Abstract: Polynorbornene has been found to be an excellent binder for the preparation of solid fuel materials and solid propellants. Mixtures of polynorbornene with liquid fuel materials such as kerosene, gasoline, or the advanced missile and aircraft liquid fuels such as JP-4, JP-5, JP-9, JP-10, RJ-4, and RJ-5, for example, can contain 80% or more of the liquid fuel material and still exist in the form of a tough rubbery polymer which has excellent burning characteristics as a solid fuel for a ramjet. Many of these materials can be tailored to have heats of combustion higher than the state-of-the-art solid ramjet fuel formulations.Type: GrantFiled: June 4, 1982Date of Patent: December 20, 1983Assignee: United Technologies CorporationInventor: William S. Anderson
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Patent number: 4420932Abstract: A system to assist flap actuation of a convergent-divergent exhaust nozzle to overcome the high air loads on the flaps, so that the nozzle flaps can be properly positioned by the actuators. The structural members of the system are operatively associated with a controlled, air-pressurized, cavity positioned in the exhaust nozzle section. Pressurized air from the cavity acts against the flaps, and helps to overcome the load required to move them. The system is useful in any exhaust nozzle, and most particularly where the exhaust nozzle is two-dimensional, i.e., rectangularly shaped.Type: GrantFiled: March 2, 1982Date of Patent: December 20, 1983Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Juan A. Mendez, John L. Mayers
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Patent number: 4420933Abstract: A system for collecting and catalytically cleaning exhaust gases from an engine which is particularly suited for an arrangement wherein the catalyst is in close proximity to the exhaust ports of the engine. Exhaust pipes are employed having common walls extending longitudinally therethrough to separate and convey exhaust gases from two separate cylinders to a common manifold. The manifold is arranged to provide a mixing of the exhaust from a plurality of cylinders and to direct that homogeneous flow to the catalyst. A restriction is provided at the outlet of the manifold chamber and before an expansion chamber into the catalyst. This outlet and the expansion chamber are designed to provide maximum efficiency in distribution of gases to the catalyst and also provide minimum gas flow disruption and back pressure.Type: GrantFiled: May 26, 1982Date of Patent: December 20, 1983Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Ikuo Kajitani, Tadayoshi Hayashi, Sakuji Arai, Yutaka Hirayama
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Patent number: 4420934Abstract: A hydraulic system is disclosed for use in an automotive vehicle including an engine, a power steering gear, and a brake booster. The system includes a single engine driven pump in fluid communication with first and second fluid flow control means. The first fluid flow control means responsive to fluid inputs for discharging a small or large predetermined amount of hydraulic fluid to control the operation of the power steering gear. The second fluid flow control means supplies a constant amount of hydraulic fluid to control the operation of the brake booster.Type: GrantFiled: January 29, 1980Date of Patent: December 20, 1983Assignee: Nissan Motor Company, Ltd.Inventor: Jun Udono
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Patent number: 4420935Abstract: The hydraulic system has an adjustable pump for delivering pressure fluid to a plurality of loads, multiway control valve assigned to respective loads and means for adjusting the flow of the pressure fluid to the working conditions of the loads, the adjusting device includes measuring throttles provided in the switching passages of respective control valves and a flow regulating device having a differential piston displaceable by the pressure difference at the outlet of the pump and at the outlet of the measuring throttle of the activated control valve. The differential piston controls a branched stream of high pressure fluid from the pump to control an actuator in the form of a cylinder and piston unit mechanically coupled to the adjusting member for the pump.Type: GrantFiled: February 22, 1980Date of Patent: December 20, 1983Assignee: Robert Bosch GmbHInventor: Walter Kobald
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Patent number: 4420936Abstract: A drive control circuit for a dental treatment table with a hydraulic cylinder for elevating and lowering a seat comprising a hydraulic drive circuit equipped with a hydraulic pump, a first hydraulic valve for elevating said cylinder, and a second hydraulic valve for lowering said cylinder, and a hydraulic pump operation circuit equipped with an air switch, a first air valve for controlling said air switch and said hydraulic valve for elevating said cylinder, and a second valve for controlling said hydraulic valve for lowering said cylinder. The drive control circuit may further comprise a second cylinder for tilting a backrest which can be controlled by the hydraulic drive circuit and the hydraulic pump operation circuit.Type: GrantFiled: March 31, 1981Date of Patent: December 20, 1983Assignee: Kabushiki Kaisha Morita SeisakushoInventor: Takahiro Matsui