Patents by Inventor Bram Vanderjeugt
Bram Vanderjeugt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8720492Abstract: A selection device for a shed-forming device of a weaving machine has an electromagnetic selector (11) with at least two poles (P1), (P2), . . . (Pn) and a selection element (1), (2); (25), (26); (40), (41) which is located in a cooperating position with a zone (50) alongside at least two poles (P1), (P2), . . . (Pn) and is retained at a holding distance (A) from this zone (50), in which the selector (11) with each adjacent pole (P1), (P2) can exert a magnetic force on the zone (50), and in which the zone (50) extends over a distance (Z) that is shorter than the coil length (S), while the holding distance (A) is at least equal to half the positionable length (L) of the selection element.Type: GrantFiled: January 10, 2011Date of Patent: May 13, 2014Assignee: Michel Van de Wiele NVInventors: Bram Vanderjeugt, Matthew Theobald, Stefaan Vanheesbeke
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Publication number: 20130291996Abstract: A shed-forming device has elastically deformable selection elements (1) (28a)-(28f) which can be placed in an undeformed position or in a deformed position, electromagnetic selectors (2) which can be actuated in order to place or keep each selection element (1) in successive weaving cycles in one of said positions, and presenting means (3) in order to mechanically deform selection elements (1) in the direction of a selector (2) in each weaving cycle into a presenting position in which they are kept at a distance from the selector (2) by a stop (4), and also relates to a method for positioning selection elements of a shed-forming device in this manner.Type: ApplicationFiled: December 21, 2011Publication date: November 7, 2013Applicant: NV MICHEL VAN DE WIELEInventors: James Anthony Graham, Matthew Theobald, Bram Vanderjeugt, Frederick De Medts
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Publication number: 20120285578Abstract: A selection device for a shed-forming device of a weaving machine has an electromagnetic selector (11) with at least two poles (P1), (P2), . . . (Pn) and a selection element (1), (2); (25), (26); (40), (41) which is located in a cooperating position with a zone (50) alongside at least two poles (P1), (P2), . . . (Pn) and is retained at a holding distance (A) from this zone (50), in which the selector (11) with each adjacent pole (P1), (P2) can exert a magnetic force on the zone (50), and in which the zone (50) extends over a distance (Z) that is shorter than the coil length (S), while the holding distance (A) is at least equal to half the positionable length (L) of the selection element.Type: ApplicationFiled: January 10, 2011Publication date: November 15, 2012Inventors: Bram Vanderjeugt, Matthew Theobald, Stefaan Vanheesbeke
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Patent number: 7798178Abstract: The invention relates to a shed forming device for a weaving machine, comprising two or more sets of hooks (2), which are provided with complementary hooks (2a, 2b) operating in conjunction with a pulley (40), the complementary hooks (2a, 2b) of one set of hooks (2) are operating in conjunction with one pulley (40) and a number of first pulleys (40a) of one or more first sets of hooks (20a) are provided in an upper row (100), and a number of second pulleys (40b) of one or more second sets of hooks (20b) are provided in a lower row (101). On the other hand, the invention relates to a weaving machine comprising a shed-forming device (1) as described above.Type: GrantFiled: September 9, 2003Date of Patent: September 21, 2010Assignee: N.V. Michel Van de WieleInventors: Filiep Vanthournout, Bram Vanderjeugt
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Patent number: 7610939Abstract: The invention relates to a Jacquard machine, comprising 2 sets of knifes moving up and down in opposition, which each, at each of their extremities, are taken up in separate knife grids (4a, 4b) being driven by a cinematic drive chain (30), and each, at one of their extremities (20a, 20b), being guided into a straight motion by means of a “Watt's linkage” rod system, the height of lift of each of these extremities (20a, 20b) of the knife grids (4a, 4b) being adjustable, and the knife grids (4a, 4b) each at their first extremities (20a, 20b) being linked with at least one first driving lever (2, 2a, 2b, 10) by means of a first linking rod (3a, 3b), and at their second extremities (21a, 21b) being linked with at least a second driving lever (2, 10) by means of a second linking rod (14a, 14b), wherein per knife grid (4a, 4b) one or several elements (1, 101, 1a, 1b, 3a, 3b) of the Watt's linkage rod system are part of the cinematic drive chain (30), and the amplitude of the motion of the said extremity (20a, 20b)Type: GrantFiled: April 10, 2006Date of Patent: November 3, 2009Assignee: N.V. Michel Van de WieleInventors: Bram Vanderjeugt, Matthew Theobald, James Anthony Graham
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Patent number: 7506668Abstract: A device for modulating a first rotational motion of an input shaft (2) to a second, different from the first, rotational motion of an output shaft (3)in textile machines has a fixed complementary cam (1) provided with at least two cam profiles (1 a, 1b). At least one cam follower (5) is linked to the input and the output shafts (2, 3) and is provided with at least two contact rollers (6a, 6b), each following a different cam profile (1a, 1b), because of which the cam followers (5)are performing a rocking motion. The cam profiles (1a, 1b)arc internal cam profiles.Type: GrantFiled: April 13, 2006Date of Patent: March 24, 2009Assignee: N.V. Michel Van de WieleInventors: Bram Vanderjeugt, Matthew Theobald, James Anthony Graham
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Patent number: 7503352Abstract: Device for locking the connection of a heddle (40) to a harness cord (50), having a heddle side and a harness cord side. The device is composed of at most two different components, the device having a diameter on the heddle side and/or on the harness cord side which decreases towards the end. The device is releasable and recloseable, allowing the device to be reused. The components are made from a plastics material which has a high wear resistance. The device is provided over virtually its entire length with a continuous passage (4) for guiding a heddle and a harness cord.Type: GrantFiled: July 17, 2006Date of Patent: March 17, 2009Assignee: N.V. Michel Van de WieleInventors: Bram Vanderjeugt, Gunther Devloo
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Patent number: 7493920Abstract: A shed forming device positions warp yarns in order to form a shed in accordance with a pattern to be woven, before inserting a weft through this shed. The positioning of the warp yarns is one potential cause of an increase or a decrease of potential energy in the shed forming device. One or several elements is added to compensate, by their change of state, partly or entirely for the decrease or increase of potential energy which is produced in the shed forming device by the positioning of the warp yarns. The change of state of the elements is effectuated without any coupling with the positioning of individual warn yarns. A weaving machine uses such a shed forming device.Type: GrantFiled: September 28, 2005Date of Patent: February 24, 2009Assignee: N.V. Michel Van de WieleInventor: Bram Vanderjeugt
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Patent number: 7464729Abstract: A Jacquard machine, having at least two knife grids (5, 6)moving up and down in opposition on either side of the Jacquard machine, the Jacquard machine having a single-sided drive (1) for driving at least one driving lever (2,3) which is provided for driving the motion of the knife grids (5, 6) on either side of the Jacquard machine, and one traversing rocking shaft (24) being provided to transmit the motion of the driving lever (2 and 3 respectively) to the knife grids (5,6) of one of the sides of the Jacquard machine.Type: GrantFiled: March 17, 2006Date of Patent: December 16, 2008Assignee: N.V. Michel Van de WieleInventors: Bram Vanderjeugt, Matthew Theobald, James Anthony Graham
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Patent number: 7337809Abstract: While weaving fabrics (501, 502, 601, 602) on a weaving machine, in successive weft insertion cycles two weft yarns (505, 506, 605, 606) are simultaneously inserted at different weft insertion levels between pile warp yarns (520, 530, 620, 630) which are positioned with respect to the weft insertion levels by a three-position-non-open-shed Jacquard machine. The Jacquard machine is provided to maintain one or several pile warp yarns (503, 504, 603, 604) in successive operating cycles of the weaving machine in an upper and/or a lower position. The pile warp yarns (503, 504, 603, 604) in their upper or in their lower position are positioned between the weft insertion levels. Furthermore, a three-position-non-open-shed Jacquard machine and a weaving machine are provided to carry out such a method, and a method to rearrange the harness suspension of a three-position-non-open-shed Jacquard machine.Type: GrantFiled: November 4, 2005Date of Patent: March 4, 2008Assignee: N.V. Michel Van de WieleInventors: Bram Vanderjeugt, Jozef Verschelde
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Publication number: 20070102057Abstract: The invention relates to a method for weaving fabrics (501, 502, 601, 602) on a weaving machine, wherein in successive weft insertion cycles two weft yarns (505, 506, 605, 606) are simultaneously inserted at different weft insertion levels between pile warp yarns (520, 530, 620, 630) which are positioned with respect to the weft insertion levels by means of a three-position-non-open-shed Jacquard machine, wherein this Jacquard machine is provided to maintain one or several pile warp yarns (503, 504, 603, 604) in successive operating cycles of the weaving machine in an upper and/or a lower position, and wherein the said pile warp yarns (503, 504, 603, 604) in their upper or in their lower position are positioned between the weft insertion levels.Type: ApplicationFiled: November 4, 2005Publication date: May 10, 2007Inventors: Bram Vanderjeugt, Jozef Verschelde
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Publication number: 20070028986Abstract: Device for locking the connection of a heddle (40) to a harness cord (50) comprising a heddle side and a harness cord side, wherein the device is composed of at most two different components, the device having a diameter on the heddle side and/or on the harness cord side which decreases towards the end. The device is releasable and recloseable, allowing the device to be reused. The said components are made from a plastics material which has a high wear resistance. The device is provided over virtually its entire length with a continuous passage (4) for guiding a heddle and a harness cord.Type: ApplicationFiled: July 17, 2006Publication date: February 8, 2007Inventors: Bram Vanderjeugt, Gunther Devloo
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Patent number: 7168454Abstract: A harness device for a weaving machine is made with partial apertured boards of synthetic material that can be manufactured by injection moulding. Each small partial apertured board has threading openings for pulling through harness cords, provisions to carry connecting elements and positioning means to position the connecting elements. Connecting elements connect one or several harness cords to one or several tackle cords or hooks. The threading openings or the connecting elements are provided with a spring-mounted retaining element and the connecting elements are provided with an opening through which one or several spindles may be passed.Type: GrantFiled: January 16, 2004Date of Patent: January 30, 2007Assignee: N.V. Michel Van de WieleInventor: Bram Vanderjeugt
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Patent number: 7150296Abstract: The invention relates to a device for attaching and guiding one or several pulley cords (9, 10) of a Jacquard machine, comprising one or several pulley blocks (11, 15, 17), each pulley block (11, 15, 17) being provided with at least two pulley wheels (6, 7) around which one or several pulley cords (9, 10) are passed and being provided with one or several pulley block guiding grooves (14) for guiding one or several guiding elements (13) which are designed to maintain the exact position of the one or several pulley blocks (11, 15, 17), the said pulley block guiding grooves (14) being provided outside the space between the said pulley wheels (6, 7).Type: GrantFiled: May 20, 2004Date of Patent: December 19, 2006Assignee: N. V. Michel Van de WieleInventors: Bram Vanderjeugt, Benedict Hanssens
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Publication number: 20060249219Abstract: The invention relates to a Jacquard machine, comprising 2 sets of knifes moving up and down in opposition, which each, at each of their extremities, are taken up in separate knife grids (4a, 4b) being driven by a cinematic drive chain (30), and each, at one of their extremities (20a, 20b), being guided into a straight motion by means of a “Watt's linkage” rod system, the height of lift of each of these extremities (20a, 20b) of the knife grids (4a, 4b) being adjustable, and the knife grids (4a, 4b) each at their first extremities (20a, 20b) being linked with at least one first driving lever (2, 2a, 2b, 10) by means of a first linking rod (3a, 3b), and at their second extremities (21a, 21b) being linked with at least a second driving lever (2, 10) by means of a second linking rod (14a, 14b), wherein per knife grid (4a, 4b) one or several elements (1, 101, 1a, 1b, 3a, 3b) of the Watt's linkage rod system are part of the cinematic drive chain (30), and the amplitude of the motion of the said extremity (20a, 20b)Type: ApplicationFiled: April 10, 2006Publication date: November 9, 2006Inventors: Bram Vanderjeugt, Matthew Theobald, James Graham
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Publication number: 20060231274Abstract: The invention relates to a device for modulating a first rotational motion of an input shaft (2) to a second, different from the first, rotational motion of an output shaft (3) in textile machines, comprising: a fixed complementary cam (1) provided with at least two cam profiles (1a, 1b); at least one cam follower (5), which is linked to the input and the output shafts (2, 3) and which is provided with at least two contact rollers (6a, 6b), each following a different cam profile (1a, 1b), because of which the said cam followers (5) are performing a rocking motion, wherein the said cam profiles (1a, 1b) are internal cam profiles.Type: ApplicationFiled: April 13, 2006Publication date: October 19, 2006Inventors: Bram Vanderjeugt, Matthew Theobald, James Graham
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Publication number: 20060207675Abstract: The invention relates to a Jacquard machine, comprising at least two knife grids (5, 6) moving up and down in opposition on either side of the Jacquard machine, the Jacquard machine comprising a single-sided drive (1) for driving at least one driving lever (2,3) which is provided for driving the motion of the knife grids (5, 6) on either side of the Jacquard machine, and one traversing rocking shaft (24) being provided to transmit the motion of the said driving lever (2 and 3 respectively) to the knife grids (5, 6) of one of the sides of the Jacquard machine.Type: ApplicationFiled: March 17, 2006Publication date: September 21, 2006Inventors: Bram Vanderjeugt, Matthew Theobald, James Graham
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Patent number: 7025094Abstract: On the one hand, the invention relates to a device for exerting a return force on at least one harness element of the harness of a Jacquard weaving machine, comprising at least one return spring (2) provided with means of attachment (1) for attaching the return spring (2) to retaining means (4) being immovably provided, said means of attachment (1) being provided with a positioning opening (6) for positioning the means of attachment (1) with respect to the retaining means (4), and a fixing opening (7) for fixing the means of attachment (1) to the retaining means (4), a spring connection (8) being provided between the positioning opening (6) and the fixing opening (7), in such a manner that the means of attachment (1) are able to move from positioning opening (6) to the fixing opening (7) with respect to the retaining means (4), but after having been fixed will be unable to move back from the fixing opening (7) to the positioning opening (6) with respect to the retaining means during operation or transport ofType: GrantFiled: July 17, 2003Date of Patent: April 11, 2006Assignee: N.V. Michel Van de WieleInventors: Bram Vanderjeugt, Yvan Lauwereys
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Publication number: 20060065321Abstract: The invention relates to a shed forming device, comprising means provided to position warp yarns in order to form a shed in accordance with a pattern to be woven, before inserting a weft through this shed, the positioning of the warp yarns being the possible cause of an increase or a decrease of potential energy in the shed forming device, one or several elements being added, which may be able to compensate partly or entirely the decrease or increase of potential energy which is produced in the situation of the shed forming device, before adding the said elements to the shed forming device, and the said elements being incorporated in the shed forming device in such a manner, that the decrease or increase of potential energy will be performed by the said elements, in a manner independent of the positioning of the warp yarns. Furthermore the invention relates to a weaving machine comprising such a shed forming device.Type: ApplicationFiled: September 28, 2005Publication date: March 30, 2006Inventor: Bram Vanderjeugt
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Patent number: 7000647Abstract: The invention on the one hand relates to a device for attaching and guiding of at least one tackle cord (2) in a Jacquard machine, the device (1) being designed for being attached to a part (20) of the Jacquard machine and being designed for being connected to at least one tackle cord (2), the device (1) being provided with a springy element (15) exercising a pushing force on the device (1) in a direction which is opposite to the tractive force exercised on the device (1) by the tackle cord (2). The invention further relates to a Jacquard machine, which is provided with a fixed, adjustable or movable grid and a number of retaining plates, which are attached to the grid and which are provided for attaching a number of devices according to anyone of the above-mentioned claims.Type: GrantFiled: May 6, 2003Date of Patent: February 21, 2006Assignee: N.V. Michel Van de WieleInventors: Filiep Vanthournhout, Bram Vanderjeugt