Formed Of Or Including Wire Mesh, Or Rods Hooked Together At Belt Edges Patents (Class 198/848)
  • Patent number: 5158171
    Abstract: A woven wire belt for an apparatus in which the belt runs in the direction of its warp wires over rotatable rollers has weft wires which have lower projections which protrude at the lower side of the belt, for lateral guidance of the belt. Upper projections in the weft wires or inserted guide lines protrude beyond the upper side of the belt and serve for the punctiform support of a conveyed product or engage as carriers behind the conveyed product if the latter is conveyed by a belt running obliquely upwards or obliquely downwards.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: October 27, 1992
    Assignee: GKD Gebr. Kufferath
    Inventor: Wilhelm Graff
  • Patent number: 5069331
    Abstract: The invention is directed to improved and lighter weight links for chains of a harvesting conveyor. The conveyor chain links are constructed of a stronger lighter weight material or constructed with conventional material but of a smaller diameter with a lubricous clip or bushing positioned on the surfaces where the links join to make up the chain. Using aero space composite materials and technology the chains will have an extended life.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: December 3, 1991
    Inventor: Raymond G. Bartkowiak
  • Patent number: 5065860
    Abstract: An improvement in a woven conveyor belt comprising a plurality of links wherein the improvement comprises a plurality of connectors with each connector having one portion connected to one of the links and another portion connected to another link for cooperating to substantially prevent the woven conveyor belt from becoming unwoven or unconnected.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: November 19, 1991
    Inventor: William G. Faulkner
  • Patent number: 5040236
    Abstract: An open-weave conveyor moves a printed wiring board through a region of radiant energy. The conveyor has a plurality of supporting projections extending from the major surface of the conveyor to minimize engagement between the conveyor and the board, providing at least three projections supporting each board above the open-weave conveyor to eliminate a shadow effect caused by radiation blocked by conveyor strands. Guides move the conveyor along an arcuate path away from the printed wiring board in the radiation region, assuring irradiation of the entire printed wiring board surface. This technique is advantageous for simultaneously irradiating both sides of a board during a dry film solder masking technique. The solder mask is radiated to promote cross-linking of the film polymer. To reduce thermal shock and abrupt temperature rise in the workpiece, the ultraviolet source includes a water envelope to absorb infrared radiation.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: August 13, 1991
    Assignee: Argus International
    Inventor: Bernard J. Costello
  • Patent number: 4957597
    Abstract: A fixed radius conveyor belt for turn conveyors has a radially positioned plurality of rods which are wrapped with helically wound filaments bridging spaces between the rods to prevent conveyed objects from falling through the spaces between the rods. The filaments are maintained in the radial space between links which are attached to the rods at their ends close to an inside edge, and retainers attached at the ends of the rods close to an outside edge of the belt. The links engage one sprocket wheel of a conveyor, and the second wheel of the conveyor engages rods in an area adjacent to the retainers. Such an arrangement results in a belt which is structurally strong and can withstand conveyor jams and other irregularities in the conveying action without disintegration of the belt structure. The relatively simple construction of the belt permits easy assembly and allows production at a relatively low cost.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: September 18, 1990
    Assignee: I. J. White Co.
    Inventor: Guy L. Irwin
  • Patent number: 4863419
    Abstract: A belt (1), suitably closed into ring-shape and carried around at least two turn-round and/or driving cylinders (2, 3), is made of plastics material, particularly of polytetrafluoroethylene, or the like, or it is constituted by a fabric, particularly of glass, impregnated and/or coated with plastics material, particularly with polytetrafluoroethylene. Both longitudinal edges of the belt have an enlarged guiding bead (6) resting on the edge (4) of each end face of the turn-round cylinder and/or driving cylinder (2, 3) or on an annular step of said cylinder, or engaging into an annular groove in said cylinder. The enlarged guiding bead (6) may be constituted by a flexible core (5) incorporated within the respective longitudinal edge of the belt (1), and particularly enwrapped by a marginal portion (101) of the belt (1) which is folded over around the core (5) and is secured to said belt (1).
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: September 5, 1989
    Assignee: FIRIE di Giorgio Sansone S.A.S.
    Inventor: Giorgio Sansone
  • Patent number: 4799415
    Abstract: In an apparatus for cutting flat stock such as foil, strip, fiber-reinforced ribbons, or the like, a support structure for the stock to be cut includes two endless chains running parallel to each other at a fixed distance from each other; the chain link members are provided each with holding elements for uniformly distributed pins; steel strips or wires loop around the pins and extend across the space between the two chains establishing a support surface for flat stock, the strips or wires are oriented so that respective thin edges face a cutting tool.
    Type: Grant
    Filed: September 9, 1986
    Date of Patent: January 24, 1989
    Assignee: MBB GmbH
    Inventor: Erwin Gerdes
  • Patent number: 4754871
    Abstract: A splicer for wire mesh belts of a plurality of individual zigh-zag strands, adjacent strands interlocked and the belt having first and second ends joined by the splicer to form a continuous web, consists of an elongated wire having a plurality of generally U-shape splicer elements. The splicer elements have a base and upstanding legs at each end lying at obtuse angle to the base, and are arranged in alternating sequence, the base and legs of first elements directed toward the first belt end and the base and legs of adjacent second elements directed toward the opposed second belt end. The splicer also has connectors with arcuate segments adjoining the ends of adjacent legs. First splicer elements engage through and interlock with adjoining links of the first belt end, and second splicer elements engage through and interlock with adjoining links of the second belt end, thereby joining the ends of the belt in a continuous web.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: July 5, 1988
    Assignee: Wire Belt Company of America
    Inventor: Robert C. Gustafson
  • Patent number: 4709713
    Abstract: An apparatus for washing a conveyor belt and any articles which may be positioned thereon including a plurality of nozzles including upwardly and downwardly directed nozzles and forwardly and rearwardly directed nozzles wherein the surrounded cleaning is achievable by use of the deflectors integral with respect to the nozzles. The wash station includes manifolds for communicating the cleaning solution from the pump to the nozzles. A filter as well as a tank for gathering of spent cleaning solution is included along with a return pipe for providing the filtered solution to the pipe for reprocessing. A drying station is included having a blower and manifolding means for dispensing the air for drying of articles on the conveyor belt or drying of the conveyor belt itself. The present invention is particularly usable with wire conveyor belts utilizing interlocking means for maintaining laterally extending straight sections in spatially disposed relationship with respect to one another.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: December 1, 1987
    Inventor: Henry Y. Kuhl
  • Patent number: 4703566
    Abstract: The lead finish can be greatly improved on leaded electronic components in a vapor phase reflow process without extra process steps by providing an improved conveyor belt having supports for carrying the components in bug down orientation while preventing the leads from substantially protruding through the plane of the conveyor mechanism and simultaneously allowing for the free flow of the heated vapor through the conveyor belt and on top of the belts such that the leads of the electronic components rest on the tape. The remaining portion of the belt is of a large grid mesh to permit the free flow of vapors in the upper portion of the reflow chamber.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: November 3, 1987
    Assignee: Harris Corporation
    Inventor: Mark A. Kwoka
  • Patent number: 4695015
    Abstract: A spiral wire, comprising adjacent thread spirals (1) positioned in pairs with loops thereof interlapping to form transverse rows of loops in the wire, and linking threads (2) inserted in the rows of loops. The opposite ends of the spiral wire are interconnected by means of a seam thread (2A) into an endless wire. In order to make it easier to insert the seam thread, a clearance (X) is provided between the interlapping loops (1Aa) of the two spirals (1A) forming the seam position, which clearance extends in the direction of the seam thread so that the loops are able to yield with respect to each other in that direction. The spirals of the seam portion are preferably made of a thinner thread, a thread having a flat cross-section or interconnected with a sparser spacing of the loops.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: September 22, 1987
    Assignee: Tamfelt Oy Ab
    Inventor: Ari Salminen
  • Patent number: 4653632
    Abstract: An endless, belted-chain conveyor as customarily employed in various types of agricultural crop-harvesting equipment is provided with elongate attachment devices for receiving and holding accessories designed to protect a harvested crop or other conveyed material from bruising contact with portions of the conveying surface of the conveyor, such as sprocket runs or with stationary side-walls of the conveyor. The attachment devices comprise elongate portions advantageously in the form of cantilevered tongues directed toward the longitudinal axis of the conveying reach of the conveyor and spaced from the conveying surface thereof sufficiently to receive protective accessories that are either attached to such cantilevered tongues or adapted to be so attached.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: March 31, 1987
    Inventors: George R. Timmer, Scott W. Brown
  • Patent number: 4643129
    Abstract: A system for the thermal and/or liquid treatment of edge supported substrates, such as printed electronic circuit boards and hybrid circuits. The system includes an elongated tunnel treating chamber. The system includes a conveyor system comprised of a pair of lubricant-free chain conveyors supported for movement through the treating chamber on a pair of elongated tracks. The lubricant-free conveyor is comprised of a plurality of successively interconnected wire links each comprising a horizontal member in engagement with the top surface of the track, a pair of spaced apart generally vertical members spaced from the horizontal member and connected thereto and in loose engagement with the sides of the track, and an integral substrate-supporting pin extending outwardly from one of the vertical members. The pins of each conveyor are directed inwardly toward each other to support a substrate therebetween by its edges.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: February 17, 1987
    Assignee: ETS Energy Technology Systems Inc.
    Inventor: Eric T. Sari
  • Patent number: 4635788
    Abstract: An endless belt type of conveyor for small flat workpieces (chips) provides a series of pockets on a perforate belt, each pocket adapted to support a chip during conveyance through a zone wherein high velocity air jets are directed against the chip. The pockets are formed by facing pairs of series of "H" or "I" shaped crossbars connected between a spaced-apart pair of roller chains. The perforate belt is formed by a Teflon (polytetraflouroethylene) coated fiberglass screen (alternatively silicon rubber) supported by the H crossbars. This construction permits the pockets to move readily around the sprockets about which the roller chains are wound.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: January 13, 1987
    Assignee: Cincinnati Milacron Inc.
    Inventor: David I. McDonald
  • Patent number: 4613037
    Abstract: A longitudinally elongate conveyor belt is adapted for conveying a plurality of transversely spaced items. The belt comprises a plurality of interconnected, generally transversely extending rod members which are spaced apart along the longitudinal direction. Each rod member is upwardly arched to define first and second item-supporting segments. The first and second segments diverge in the downward direction so as to resist a tendency for the first and second items to be displaced by belt sag. An outer edge of the belt may be elevated relative to the inner edge to compensate for centrifugal forces.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: September 23, 1986
    Assignee: Stewart Systems, Inc.
    Inventors: David B. Park, John A. Weaver, A. Scott Zumbrum
  • Patent number: 4505383
    Abstract: In order to protect the longitudinal edges of a link belt against damage or undue wear it is proposed to provide an edge guard comprising a multiplicity of guard elements engaged with the coils of the belt, the elements each comprising a body part for disposition adjacent the edge of the belt and a mounting element for engagement with a respective coil. The body part is preferably flexible, and the body parts of adjacent elements may partially overlie one another in providing a reinforcing wear resistant edge to the belt for protecting the ends of the coils.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: March 19, 1985
    Assignee: Scapa-Porritt Limited
    Inventors: John B. Wheeldon, John Jeffery, Paul F. Myerscough
  • Patent number: 4318469
    Abstract: A wire mesh band or belt for a conveyor having downwardly extending protuberances for engaging peripheral grooves in rollers of a conveyor system to maintain the band in proper transverse position. The protuberances are formed on guide wires woven into the band at lateral and longitudinal intervals in the weft direction. The guide wires have at least one flattened surface so that they cannot rotate about their longitudinal axis. In a second embodiment, instead of continuous guide wires, a plurality of guide wire sections may be arranged at intervals transversely across the band.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: March 9, 1982
    Assignee: GKD Gebr. Kufferath GmbH & Co. KG
    Inventor: Karl Kufferath-Kassner
  • Patent number: 4249653
    Abstract: A wire mesh band or belt with mutually crossing warp wires and weft wires for a conveyor system with grooved support rollers is provided with downwardly extending protrusions. The protrusions are warp wire free providing great flexibility for the band in the longitudinal direction. The protrusions can be formed in all the weft wires or only in selected strengthened weft wires with the remaining weft wires woven into the fabric after the protrusions are formed.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: February 10, 1981
    Assignee: GKD Gebr. Kufferath GmbH & Co. KG
    Inventor: Karl Kufferath-Kassner
  • Patent number: 4244464
    Abstract: A conveyor, in particular for eggs, comprising two lateral chains of the type having closed annular links extending in perpendicular planes. The chains are interconnected by a number of transverse bars forming the actual carrier surface. Successive bars have different levels upon a common reference plane, so that at least the upper surface of each second bar is on a higher level than the upper surface of the first bar. One advantage is that eggs resting on two bars can be transported over steeper rises without rolling backwards.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: January 13, 1981
    Assignee: Gebr. van Capelleveen B.V.
    Inventor: Pieter van Capelleveen
  • Patent number: 4228892
    Abstract: A travelling grate conveyor for advancing a mould consisting of juxtaposed identical mould parts is associated with an endless mould supporting belt or conveyor formed by a plurality of closely spaced and interconnected rod members extending transversely of the longitudinal direction of the conveyor. The upper run of the belt rests on and is advanced by the travelling grate walking wacking beam conveyor.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: October 21, 1980
    Assignee: Dansk Industri Syndikat, A/S
    Inventors: Marius Gunnergaard, Ole A. Jacobsen
  • Patent number: 4222483
    Abstract: A belt conveyor in which the belt travels around a lateral curve or curves and comprises load-supporting belt sections (2) pivoted between transverse rods (1), has guide blocks (4) at the ends of the transverse rods (1) with bearing parts (20) which co-operate substantially without friction with runners (5) at the or each curve to guide the belt in its travel with reduced wear and tension. Preferably the bearing parts (20) and runners (5) are made of self-lubricating material. In one form the bearing parts are horizontally facing channels (20) in the blocks (4) engaged by tongue portions (25) of the runners (5). The blocks each have two adjacent transverse rods (1) retained to them. The transverse rods are also connected by links (3) alternately arranged against external surfaces of the blocks (4) and in grooves (18) in the blocks where they are connected to the rods.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: September 16, 1980
    Assignee: U.M.E.C.-Boydell (belting) Limited
    Inventors: Raymond J. Wootton, Kenneth E. Walker, Colin Smith
  • Patent number: 4215590
    Abstract: A belt for transmitting power from a cogged driving member to a cogged driven member such as a pair of wheel sprockets. The belt has inflexible teeth spaced along the direction of its travel. Each of the teeth have a longitudinal axis transverse to the direction of belt travel. The belt also includes substantially inextensible fasts spaced transversely to the direction of belt travel. The fasts extend in the direction of belt travel adjacent to the teeth and are looped around preselected numbers of the teeth.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: August 5, 1980
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Hossein Bahiman
  • Patent number: 4186566
    Abstract: Non-uniformity of air fluidization freezing of food particles on a wire mesh conveyor belt caused by variations in food particle layer thickness or in layer permeability over the working area of the belt is minimized by the presence of uniformly spaced airflow masking rods placed in the transversely extending core spaces of the belt helices. Of selected material, such as polyethylene, the rods serve also to strengthen and stiffen the belt and to minimize uneven wear in the mesh.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: February 5, 1980
    Assignee: Lewis Refrigeration Co.
    Inventor: David K. Y. AuYoung
  • Patent number: 4089408
    Abstract: A round rod is supported at its ends by the parallel runs of two sprocket chains used in a conveyer. In order to permit easy replacement of a rod when damaged, the rod is equipped with spring biased means for holding the rod captive on the conveyer chain runs during normal use and for permitting the rod to be quickly snapped out without necessity of disassembling the conveyer chains or their protective shield.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: May 16, 1978
    Assignee: Metramatic Corp.
    Inventor: Frank B. Vanderhoof
  • Patent number: 4078655
    Abstract: A small radius conveyor belt for traveling along both straight and laterally curved paths and a conveyor system including such belt is shown. A plurality of rods extend across the belt and are pivotally connected together by tractive central links and inner and outer edge links which are longitudinally expandable and collapsible. The inner links are fully expanded and the outer links are collapsed in the straight path. The inner links collapse and the outer links expand to allow the belt to bend around the curve.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: March 14, 1978
    Assignee: Ashworth Bros., Inc.
    Inventor: Gerald C. Roinestad
  • Patent number: 4040952
    Abstract: An endless traveling band screen formed of a plurality of screening elements is carried by endless, impermeable, flexible drive belts which extend along opposite sides of the traveling band screen adjacent the ends of the screening elements. The belts travel around upper and lower rotary members with sealing means interposed between adjacent screening elements, between the screening elements and the belts, and between the belts and adjacent walls of the screening unit.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: August 9, 1977
    Assignee: Passavant-Werke Michelbacher Hutte
    Inventor: Wolfgang Jopp
  • Patent number: 4036352
    Abstract: An endless conveyor and belt where the conveyor belt is made from a plurality of laterally extending rods linked together at the edges of the belt to form a fixed pitch driving chain on one edge of the belt and a variable pitch chain on the other edge of the belt. The driving chain is formed of links extending upstream from rods and surrounding the adjacent upstream rods. The links in the variable pitch chain loosely surround the adjacent rod ends to permit relative movement between the adjacent rods. The rods rest on fixed supports which, during movement of the belt along the path of the conveyor, exert drag forces on the rods tending to rotate the upstream-extending links of the fixed pitch chain against seats on adjacent upstream links, thereby locking the links one to another and supporting the rods against drag forces without column loading. Drive forces are not transmitted across the belt. The ends of the rods at the variable pitch chain float with respect to each other.
    Type: Grant
    Filed: October 14, 1976
    Date of Patent: July 19, 1977
    Assignee: Alto Corporation
    Inventor: David Laverne White
  • Patent number: 4026410
    Abstract: A plurality of parallel strands comprise chain links which are articulately connected together by grate pins that extend transversely over the entire width of the grate. Rod-like holding members are carried on the chain links and extend substantially parallel to the grate pins. Assemblies of individual support bars have upper edges higher than the chain links, each support bar having two recesses to receive two rod-like holding members. Each assembly of support bars extends substantially between the longitudinal centers of two chain links and is supported by a separate pair of rod-like holding members, for receiving material deposited on the travelling grate chain, and comprises slots for the passage of treatment gas. Each pair of rod-like holding members is interrupted at an intermediate point to provide a gap for insertion and removal of the support bars.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: May 31, 1977
    Assignee: Polysius AG
    Inventor: Reinhard Korting
  • Patent number: 3991876
    Abstract: The present invention relates to a sanitary linkage connection assembly which pivotally interconnects transverse bars to form a food processing conveyor comprising an endless belt in which a plurality of laterally spaced transversely extending rod members are connected in spaced relationship by respective link members of the linkage connection assembly, achieved by welding one end of each link to an end of each rod to provide an endless belt having an overall smooth external linkage structure which is substantially without surfaces or spaces receptive to the accumulation and retention of food particles which form contaminants when in a conveyor belt of the type described for use upon a transport device in food processing operations and thereby provide a linkage connection assembly in a conveyor which is easily cleaned to maintain it in a sanitary condition.
    Type: Grant
    Filed: April 25, 1975
    Date of Patent: November 16, 1976
    Inventors: Jacob Schmidt, Sr., Jacob Schmidt, Jr.
  • Patent number: 3985224
    Abstract: A conveyor belt comprises a series of cross rods coupled together at their ends in parallel relationship at fixed distances apart, and plate links which extend between the cross rods and are hingedly connected to the cross rods solely by virtue of nestling engagement of parts of the peripheries of the cross rods in channel-shaped recesses at opposite sides of the links, the mouths of the recesses at the opposite sides of each link being directed away from one another lengthwise of the belt.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: October 12, 1976
    Assignee: U.M.E.C.-Boydell (Belting) Limited
    Inventor: George Arthur Harvey