Patents Represented by Attorney Arthur B. Colvin
  • Patent number: 4977651
    Abstract: A covering device for the inlet and outlet slots of a tenter comprises a flexible plastic strip whose ends are fastened in the region of the ends of the respective slot. In the area where the chain rail guides extend through the slot, the plastic strip is deflected in U-shaped configuration by deflector elements outside the slot and spanning the chain guides. The deflector elements are angularly oriented relative to the longitudinal axis of the slot at an angle of about 45 degrees and are fastened on a movable carriage connected to the chain guides so that movement of the chain guides transversely of the slot functions also to move the U-shaped configuration of the flexible plastic strip.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: December 18, 1990
    Assignee: H. Krantz GmbH & Co.
    Inventor: Theo Schiffers
  • Patent number: 4946114
    Abstract: A yarn roll carrier tube and method of employing same to effect uniform compression of a yarn roll mounted on said tube is disclosed. The tube includes a central compressible portion, a contoured portion at one end, and an annular opening having a recessed stop portion at the other end. The tubes are sized such that the contoured portion may be inserted into and frictionally retained within the annular opening of a similar tube by a predetermined mount dictated by the position of said stop shoulder by the exertion of a compressive force exerted by one said tube against the other. Yarn rolls mounted on adjacent said tubes are partially compressed by the insertion of one tube into the other into said nested position, said insertion resulting in a preferential compression of the central portions of the yarn rolls. Subsequent compressive forces of a greater magnitude when exerted against the tubes result in axial foreshortening of the tubes and greater compression of the yarn rolls.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: August 7, 1990
    Inventors: Josef Becker, Hubert Becker, Matthias Becker
  • Patent number: 4945452
    Abstract: A method of manufacturing a tantalum capacitor includes compacting tantalum powder about a tantalum anode rod in such manner than the tantalum powder in a region in registry with the tantalum rod is compacted to a density of from about 8 to 10 grams per cc or more, whereas the density of the remaining portions of the tantalum powder mass are compacted to a density of from about 4 to 7 grams per cc. The disclosure further relates to a improved capacitor formed in accordance with the method, as well as to an improved capacitor preform, the capacitor and preform being characterized in that a higher reliability mechanical and electrical connection is effected between the anode rod and the tantalum materials surrounding the rod.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: July 31, 1990
    Assignee: AVX Corporation
    Inventors: John Sturmer, John Y. Cadwallader
  • Patent number: 4935843
    Abstract: A method of manufacturing a ceramic capacitor of the lead filled type includes coating the ends of the ceramic monolith with a terminating paste incorporating oxidizable metal particles characterized in that the lead will not wet to oxides of the metals but will wet to unoxidized or lightly oxidized increments of the metals. The paste is fused in an oxidizing environment or is fused in an inert environment and thereafter heated in an oxidizing environment with the result that the metal increments adjacent the exterior of the fused coating are oxidized whereas the metal at the interior portions of the paste are unoxidized or only slightly oxidized. Upon metal injection, the lead will wet to the interior portions of the fused paste but will not wet to the exterior of the paste whereby injected chips may be readily separated and whereby the size of the chip is rendered predictable due to the absence of adherent lead.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: June 19, 1990
    Assignee: AVX Corporation
    Inventors: William McLaughlin, Doug Lee, Ricardo Garcia
  • Patent number: 4921091
    Abstract: A motorized draw roller assembly includes a draw roller having ends mounted in bearing assemblies vertically shiftably mounted on spaced parallel supports of a frame. A device is provided on one bearing assembly for raising and lowering such bearing assembly in accordance with the direction of rotation of the draw roller shaft, the device including a threaded nut and spaced parallel cables extending from the nut over a pulley, the upper ends of the cables being fixed at an upper portion of the frame. The bearing assembly supporting the other end of the draw roller shaft is caused to shift upwardly and downwardly in precise correlation with the first mentioned bearing assembly by connecting apparatus such as pairs of hydraulic pistons and cylinders or a cable arrayed over pulleys.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: May 1, 1990
    Assignee: H. Krantz GmbH & Co.
    Inventor: Gunther Kehlenbach
  • Patent number: 4910845
    Abstract: A roller, and more particularly a precision transport roller formed of elastomeric material is disclosed. The roller is characterized in that the elastomeric material is formed into inner and outer concentric cylinders which are joined together and which encompass therebetween in co-axial relation a rigid cylindrical bushing. Preferably, the inner and outer cylinders are connected by bridges defined by holes formed in the bushing. The bushing may include beveled end faces for facilitating centering of the bushing in a mold.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: March 27, 1990
    Assignee: Rubber-En Kunststoffabriek
    Inventor: Johannes C. Delhaes
  • Patent number: 4901495
    Abstract: A bridging apparatus for spanning the space defined between two relatively movable structural floor members includes anchor sections adapted to be mounted to the edges of the floors and a two part bridging unit having outer edges pivotally connected to the anchor members. One inner edge of a bridging member includes a spaced pair of legs defining a groove arrayed at an acute angle to the floor, the other bridging member including a tongue riding in the groove. The upper leg of the member defining the groove is wedge-shaped the upper surface of the leg being parallel to the floor structures when the same are aligned horizontally.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: February 20, 1990
    Assignee: MIGUA Hammerschmidt GmbH
    Inventor: Reinhard Gottschling
  • Patent number: 4903166
    Abstract: An improved method of forming electrostrictive actuators or capacitors is disclosed. A stack of green ceramic sheets is formed, a surface of the sheets including areas of electrode forming material and other areas of heat dispersible material. The electrodes of opposite polarity are exposed at opposite surfaces of the stack and areas of dispersible material intervene between the exposed edges of the electrode ink margins. An actuator fabricated in accordance with the method may be terminated without fear of shorting between adjacent layers and the resultant actuator will be essentially free of dielectric bonding whereby, when used as an actuator, a high degree of expansion will be achieved. The invention is further directed to a preform fabricated in accordance with the method of the invention.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: February 20, 1990
    Assignee: AVX Corporation
    Inventor: John Galvagni
  • Patent number: 4896613
    Abstract: A blast resistant composite section comprises a base section (1), an intermediate section (2), and a solid, bombardment-inhibiting cover section (3). On a side toward the intermediate section (2) the cover section (3) is provided with depressions which form in each instance a groove (9) whose cross-section widens outward in wedge form. Elastically pivotable projections(8) integrally formed with the intermediate section (2) each engage in a groove (9) and are provided in the region of their free edge with an edge (10) of nose-shaped cross section protruding to one side. In the region of the bottom of each groove (9) a lateral enlargement (11) adapted to the cross section of the edge (10) is provided. Due to this design, the cover section (3) can be non-releasably connected to the intermediate section (2) by forces exterted on the cover in a direction perpendicular to the length of the section.
    Type: Grant
    Filed: July 13, 1988
    Date of Patent: January 30, 1990
    Inventor: Elke Salzer
  • Patent number: 4896433
    Abstract: In the regions of a drying zone within a tunnel (2) exposed to fire danger a sample of the air streams is drawn off via an intake pipe (11) disposed transversely to the longitudinal extent of the tunnel. The sample is supplied to a measuring device which contains two regeneratable filters which are alternatingly acted upon by the sample via switch-over valves. The measuring device contains a sensor acted upon by the cleansed gas which sensor reacts to CO and is connected to an alarm system and or an extinguisher device. From the extinguisher device an extinguisher agent line (16) leads to an extinguisher pipe (14) which is likewise in the direction of flow of the air steam guided through the tunnel (2) arranged transversely to the longitudinal extent of the tunnel (2) and provided with extinguisher agent exit nozzles.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: January 30, 1990
    Assignee: H. Krantz GmbH & Co.
    Inventor: Kurt Friedrichs
  • Patent number: 4885885
    Abstract: A joint bridging arrangement comprises a bridging unit having a central portion, side parts, and anchoring units adjoining the longitudinal sides of the side parts. The side parts are pivotably connected to the central portion for movement about a pivot axis parallel to the longitudinal axis of the bridging arrangement. Cleats or legs of the side part and anchoring unit are interengaged and relatively slidable at an acute angle relative to the upper side of the center part. The upper-most surface of the bridging unit includes a portion having a wedge shaped cross section corresponding to the acute angle so that the transition from the bridging to the anchoring units, and hence to the structural parts bridged by the joint is essentially stepless.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: December 12, 1989
    Assignee: Migua Hammerschmidt GmbH
    Inventor: Reinhard Gottschling
  • Patent number: 4881308
    Abstract: A method of manufacturing a ceramic capacitor of the lead filled type includes coating the ends of the ceramic monolith with a terminating paste incorporating oxidizable metal particles characterized in that the lead will not wet to oxides of the metals but will wet to unoxidized or lightly oxidized increments of the metals. The paste is fused in an oxidizing environment or is fused in an inert environment and thereafter heated in an oxidizing environment with the result that the metal increments adjacent the exterior of the fused coating are oxidized whereas the metal at the interior portions of the paste are unoxidized or only slightly oxidized. Upon metal injection, the lead will wet to the interior portions of the fused paste but will not wet to the exterior of the paste whereby injected chips may be readily separated and whereby the size of the chip is rendered predictable due to the absence of adherent lead.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: November 21, 1989
    Assignee: AVX Corporation
    Inventors: William McLaughlin, Doug Lee, Ricardo Garcia
  • Patent number: 4862318
    Abstract: An improved method for forming shorting bars on ceramic capacitors of the tab type includes the step of effecting a final polishing of the tab exposed surface utilizing grit or abrasives of a critical size, namely of average particle size in the range of about 2 to about 10 microns. The method further employs thin film metallurgy namely the vacuum deposition or sputtering of one or more layers within specified thickness ranges. There is further disclosed an improved capacitor fabricated in accordance with the method described.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: August 29, 1989
    Assignees: AVX Corporation, IBM Corporation
    Inventors: John Galvagni, James M. Oberschmidt, James N. Humenik
  • Patent number: 4854248
    Abstract: For framing plate type panels a composite section is used which is fitted together from a center part (3) and two lateral parts (4,5). The stay type center part (3) has two stay segments (6,7 ) which are spaced from each other and connected together through a pair of insulating strips 8. On the side away from the respective panels (1,2) the two lateral parts (4,5) are provided with reinforcement sections (10). Threaded studs (12) distributed at intervals over the length of the composite section connect the reinforcement sections (10) and hence the section parts disposed therebetween with one another. This results in a stable union of the composite section, which not only is given a bombardment-inhibiting effect by the reinforcement sections (10), but also is able to withstand high tensile stresses of the center part (3) and to prevent deformations of the lateral parts (4,5).
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: August 8, 1989
    Inventor: Heinrich Salzer
  • Patent number: 4830723
    Abstract: A method of forming successive metal layers of varying widths on a substrate is disclosed. A mask having a through going aperture is provided, the mask including a constricted neck portion between its upper and lower surfaces. Successive metal layers are applied over the substrate through the aperture in the mask sequentially by sputtering methods which form a metallic layer wider than the constricted neck portion of the mask and by vapor deposition method which forms a narrower metal layer corresponding to the transverse dimension of the constricted portion of the mask.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: May 16, 1989
    Assignees: AVX Corporation, IBM Corporation
    Inventors: John Galvagni, Robert A. Miller
  • Patent number: 4823406
    Abstract: A method of forming a stocking cap is disclosed which includes the steps of providing a tubular sleeve or body of knitted fabric, everting the sleeve to bring the raw edges of the sleeve into registry, encompassing the everted sleeve within a liner which is shorter than the everted sleeve to bring the raw edges at one end of the liner into registry with the raw edges of the sleeve, attaching the raw edges of the sleeve and liner by a pair of transversely intersecting stitch lines, stitching the other edge of the liner to the sleeve about a circumferential stitch line, and thereafter everting the resultant sub-assembly to provide a stocking cap wherein the liner is disposed interiorly, and no raw edges of the sleeve or liner remain exposed. The disclosure further relates to a stocking cap manufactured in accordance with the noted method.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: April 25, 1989
    Assignee: Paris Accessories, Inc.
    Inventor: Theodore Markson
  • Patent number: 4806910
    Abstract: The monitoring arrangement consists of permanent magnets (M1, M2, M3) of different strengths which are associated with a closure mechanism. Combined in a structural unit (1), these act as signal transmitters. The structural unit (1), is, for example, so positioned in door leaf that, in the closed position of the mechanism the permanent magnets (M1, M2, M3) lie opposite sensors (S1, S2, S3) which are associated with a surrounding frame. These sensors combined in a structural unit (2), act as signal pick-ups, at which different voltages, which are increased by amplifiers V1, V2, V3, are applied as a result of differing magnetic field strengths. The output voltages thereof are adjustable by respective potentiometers and can be regulated to the threshold voltages of comparators (K1to K6).
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: February 21, 1989
    Inventor: Heinrich Salzer
  • Patent number: D299553
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: January 24, 1989
    Assignee: Lightolier Incorporated
    Inventor: Anthony C. Donato
  • Patent number: D304138
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: October 24, 1989
    Assignee: Mepal B.V.
    Inventor: Johannes H. Weernink
  • Patent number: D304146
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: October 24, 1989
    Assignee: MEPAL B.V.
    Inventor: Johannes H. Weernink