Patents Assigned to uni-chains A/S
  • Patent number: 8020693
    Abstract: A conveyor chain link has a leading edge, a trailing edge, two opposed side edges, a load carrying upper surface and a bottom face. The leading and trailing edges have pluralities of eye parts separated by openings, such that the trailing edge of one belt link may be arranged in the openings arranged on the leading edge of an adjacent belt link. The belt links are connected either by inserting a traverse rod through apertures in the eye parts or by fitting lateral notches in slots provided in sides of the eye parts on the opposite edge on the sides of the eye parts along one edge. Between the leading and trailing edges and the side edges at least a part of a load carrying surface has a one-sided inclination towards one side edge.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: September 20, 2011
    Assignee: uni-chains A/S
    Inventors: Kenneth Westergaard Andersen, Peter Broe
  • Patent number: 7828136
    Abstract: A conveyor is described comprising an endless side-flexing conveyor belt made from a number of rows of hinged interconnected belt links, where each row comprises at least one link, where each link has a front end, a back end, a top surface, a bottom surface and two sides, where hinge parts separated by apertures are arranged along the front end and the back end such that front hinge parts on the front end will fit inside apertures on the back end of an adjacent belt link, and where the front end and back end are substantially parallel to a first axis parallel to the width direction of the link, wherein the hinge parts of each link are defined by a top and bottom that are substantially flush with the top and bottom surfaces respectively, and two side surfaces and a free front surface, and that at least some of the front hinge parts are provided with a protrusion on one or both side surfaces, where these protrusions fit inside elongated apertures provided in the side surfaces of the rear hinge parts on the oppo
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: November 9, 2010
    Assignee: Uni-Chains A/S
    Inventor: Poul Erik Damkjaer
  • Patent number: 7364038
    Abstract: A conveyor comprising an endless conveyor belt made from a plurality of rows of hinged interconnected belt links where each row extends in a width direction substantially perpendicular to a traveling direction of the belt and comprises at least one link, where substantially all links further comprise a front end, a back end, a top surface, a bottom surface, a pair of opposing side surfaces, front hinge parts and rear hinge parts for a pin-less connection, at least one roller aperture provided through the thickness of the link, the at least one roller aperture comprising at least one axle receiving, guiding, and retaining means, such that an axle may be arranged substantially parallel to the top surface, and a roller arranged coaxially with the axle.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: April 29, 2008
    Assignee: Uni-Chains A/S
    Inventor: Poul Erik Damkjaer
  • Publication number: 20070181409
    Abstract: A conveyor is described comprising an endless side-flexing conveyor belt made from a number of rows of hinged interconnected belt links, where each row comprises at least one link, where each link has a front end, a back end, a top surface, a bottom surface and two sides, where hinge parts separated by apertures are arranged along the front end and the back end such that front hinge parts on the front end will fit inside apertures on the back end of an adjacent belt link, and where the front end and back end are substantially parallel to a first axis parallel to the width direction of the link, wherein the hinge parts of each link are defined by a top and bottom that are substantially flush with the top and bottom surfaces respectively, and two side surfaces and a free front surface, and that at least some of the front hinge parts are provided with a protrusion on one or both side surfaces, where these protrusions fit inside elongated apertures provided in the side surfaces of the rear hinge parts on the oppo
    Type: Application
    Filed: September 20, 2006
    Publication date: August 9, 2007
    Applicant: Uni-Chains A/S, a corporation
    Inventor: Poul Damkjaer
  • Patent number: 6758329
    Abstract: The invention provided a conveyor belt, which is special in that the belt in a direction perpendicular to the traveling direction of the belt is made from one single chain link, and that the transport top surface comprises a wide main portion and the top part of the eye projections which are flush with the main portion, such that the belt surface is substantially without apertures and/or openings and further that the hinge-like assembly arrangement is fully accessible only from the underside of the belt. By this inventive chain link is achieved that the narrow gaps between each assembled chain link in the prior art is not present such that from a hygienic point of view it becomes much easier to clean the entire conveyor belt satisfactory in that for each chain link, which usually constitutes 40-60 mm of the total length of the conveyor belt, which altogether, especially for deboning lines, might be 300-400 meter long, no gaps are present.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: July 6, 2004
    Assignee: uni-chains A/S
    Inventors: John Haue Damkjær, Poul Erik Damkjær
  • Patent number: 6662938
    Abstract: The invention provided for a conveyor belt wherein chain links are assembled such that eye parts are inserted into the intervals between two eye parts in the opposite chain link, whereafter the transverse rod according to the invention is inserted from one side of the conveyor belt through the overlapping openings in both chain links. When the notches provided on the transverse rod adjacent the head portion come into contact with the end face of the chain link, i.e. the side of the chain link, the notches can be brought into engagement with slits provided in the outmost chain link by twisting the head portion and pushing it into the end portion of the chain link. When the notches are engaged in the slits the transverse rod is fixated such that it will not move sideward in relation to the longitudinal direction of the conveyor belt.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: December 16, 2003
    Assignee: uni-chains A/S
    Inventor: Poul Erik Damkjaer
  • Patent number: 6412625
    Abstract: A feed apparatus (1) comprising a conveyor belt (2), the conveyor belt (2) comprising modules (3) with an upper (4) and a lower (5) surface, the modules (3) comprising hinge eyes (7) pivotally hinged to each other perpendicular to the feed direction. The feed apparatus (1) comprises at least one rotatable and toothed driving wheel (8) meshed with the conveyor belt (2), with the pressure receiving surface (10) of the teeth wholly or partially in contact against at least the outer surface (13) of its own hinge eye (7). Therefore an optimum force transmission to the belt itself is achieved, which occurs through the teeth of the sprocket wheel applying driving force at the hinge eyes, thus making the force transmission occur close to the center line of the axis of the hinge eyes. There is a good lateral steering of the belt, so that the risk that the belt hops off the toothed wheel is minimized.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: July 2, 2002
    Assignee: Uni-Chains A/S
    Inventor: Poul Erik Damkjaer
  • Patent number: 6390288
    Abstract: A feed apparatus (1) comprising a conveyor belt (2), the conveyor belt (2) comprising modules (3) with an upper (4) and a lower (5) surface, the modules (3) comprising hinge eyes (7) pivotally hinged to each other perpendicular to the feed direction. The feed apparatus (1) comprises at least one rotatable and toothed driving wheel (8) meshed with the conveyor belt (2), with the pressure receiving surface (10) of the teeth wholly or partially in contact against at least the outer surface (13) of its own hinge eye (7). Therefore an optimum force transmission to the belt itself is achieved, which occurs through the teeth of the sprocket wheel applying driving force at the hinge eyes, thus making the force transmission occur close to the center line of the axis of the hinge eyes. There is a good lateral steering of the belt, so that the risk that the belt hops off the toothed wheel is minimized.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: May 21, 2002
    Assignee: Uni-Chains A/S
    Inventor: Poul Erik Damkjaer
  • Patent number: 6332531
    Abstract: A first modular unit (1) for the fabrication of conveyors (2), said first modular unit (1) comprising an upper surface (3) and a lower surface (4) and means (5) along at least one, preferably two long sides (13) lying diametrically opposite each other, for pivotal hinging of the first modular unit (1) to a second modular unit (6), and where extending from the upper surface (3) said first modular unit (1) comprises a flat carrier (7) with a front surface (8) and a rear surface (9), an upper concluding end (10) and two side edges (11) lying opposite each other, the middle/center plane (12) of said carrier (7) standing substantially at right angles to the upper surface (3) and extending parallel with the long sides (13).
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: December 25, 2001
    Assignee: Uni-chains A/S
    Inventor: Poul Erik Damkjaer
  • Patent number: 6216854
    Abstract: Side-flexing conveyor belt built up of a number of chain links which are joined together in a hinge-like manner by means of transverse rods (5, 6) through openings in the individual chain links. Use is made of chain links of at least two types, i.e. edge chain links (1, 2) with one-sided reinforcement (18), and module chain links (3, 4) between the edge chain links. The chain links of both types can be configured in various module breadths, and the individual links are staggered in relation to one another. Each link has a first row of eye parts (12) with mutual intervals between them in the transverse direction, and with elongated holes in line with one another for the engagement of a transverse rod, and a second row of eye parts (11) disposed midway between the first-mentioned eye parts and with holes in line with one another for the engagement of a second transverse rod, and the two sets of eye parts are held together by a transversely-extending bridge part.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: April 17, 2001
    Assignee: uni-chains A/S
    Inventors: Poul Erik Damkjær, John Haue Damkjær
  • Patent number: 6073756
    Abstract: Side-flexing conveyor belt built up of a number of chain links which are joined together in a hinge-like manner by means of transverse rods (5, 6) through openings in the individual chain links. Use is made of chain links of at least two types, i.e. edge chain links (1, 2) with one-sided reinforcement (18), and module chain links (3, 4) between the edge chain links. The chain links of both types can be configured in various module breadths, and the individual links are staggered in relation to one another. Each link has a first row of eye parts (12) with mutual intervals between them in the transverse direction, and with elongated holes in line with one another for the engagement of a transverse rod, and a second row of eye parts (11) disposed midway between the first-mentioned eye parts and with holes in line with one another for the engagement of a second transverse rod, and the two sets of eye parts are held together by a transversely-extending bridge part.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: June 13, 2000
    Assignee: Uni-Chains A/S
    Inventors: Poul Erik Damkj.ae butted.r, John Haue Damkj.ae butted.r
  • Patent number: D502585
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: March 1, 2005
    Assignee: UNI-Chain A/S
    Inventor: Poul Erik Damkjaer
  • Patent number: D503841
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: April 5, 2005
    Assignee: UNI-Chain A/S
    Inventor: Poul Erik Damkjaer
  • Patent number: D509038
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: August 30, 2005
    Assignee: Uni-Chains A/S
    Inventor: Poul Erik Damkjaer
  • Patent number: RE40248
    Abstract: The invention provided a conveyor belt, which is special in that the belt in a direction perpendicular to the traveling direction of the belt is made from one single chain link, and that the transport top surface comprises a wide main portion and the top part of the eye projections which are flush with the main portion, such that the belt surface is substantially without apertures and/or openings and further that the hinge-like assembly arrangement is fully accessible only from the underside of the belt. By this inventive chain link is achieved that the narrow gaps between each assembled chain link in the prior art is not present such that from a hygienic point of view it becomes much easier to clean the entire conveyor belt satisfactory in that for each chain link, which usually constitutes 40-60 mm of the total length of the conveyor belt, which altogether, especially for deboning lines, might be 300-400 meter long, no gaps are present.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: April 22, 2008
    Assignee: Uni-Chains A/S
    Inventors: John Haue Damkjaer, Poul Erik Damkjaer