Patents Assigned to SIPRA
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Patent number: 7007777Abstract: The invention relates to a thread brake with a holding means (17), a bearing pin (25), which has an assembly section (24) disposed in the holding means (17) and a bearing section (26) projecting out of the holding means (17), two brake elements (33, 34) displaceably disposed on the bearing section (26) and a pretensioning mechanism intended for adjustment of the braking force. The pretensioning mechanism includes a spring (29) pretensioning the assembly section (24), a tension element (39) attached to the bearing section (26) and an adjusting and protecting member (20), which is disposed to be axially displaceable in the holding means (17) and houses the assembly section (24) and the spring (29). The invention additionally relates to textile machines and thread feed devices equipped with such a thread brake (FIG. 3).Type: GrantFiled: September 10, 2004Date of Patent: March 7, 2006Assignee: SIPRA Patententwicklungs-und Beteiligungsgesell schaft mbHInventors: Roland Gonser, Johannes Klaszka
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Patent number: 6983625Abstract: What is described is a circular knitting machine with a chassis (1) and means for manufacturing knitted goods. According to the invention, the circular knitting machine has at least one working platform (14) facilitating access to an upper region, and mounted on the outside of the chassis (1), said working platform being displaceably mounted on a guideway attached to the chassis (1) and running in its peripheral direction (FIG. 3).Type: GrantFiled: June 8, 2004Date of Patent: January 10, 2006Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventors: Helmut Weber, Ingo Vogt
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Patent number: 6962065Abstract: What is described is a knitting machine with an electromagnetic selecting device for the three-way technique. In order to reduce the space requirement for the selecting device in height and width, assigned to each of the knitting tools (7) is a pivotable control jack (8) having two raising butts (17, 18) and to which, per selecting device, two control magnets (31, 32) arranged one after the other in the running direction of the knitting tools (7) are assigned. Depending upon which of the two control magnets (31, 32) is selected for a selecting procedure, the control jacks (8) find their way with one raising butt (17) onto a knitting cam (28) or with the other raising butt (18) onto a tuck cam (29).Type: GrantFiled: May 3, 2004Date of Patent: November 8, 2005Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventor: Rolf Willmer
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Patent number: 6915666Abstract: A circular knitting machine is described which is intended to serve in particular the production of spacer fabrics. The circular knitting machine contains a needle cylinder (1) having cylinder needles (2), a cylinder cam (3), a dial (4) with needles (5) and a dial cam (6). The needle cylinder (1) and the dial (4) fix a vertical and a horizontal comb spacing (x, y) and a stitch spacing (z). According to the invention, the needle cylinder (1) and the dial (4) are set up to form a stitch spacing (z) of at least 6 mm, and the knitting needles (2, 5) of the needle cylinder (1) and/or the dial (4) are in the form of compound needles (FIG. 1).Type: GrantFiled: April 30, 2004Date of Patent: July 12, 2005Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventor: Rolf Willmer
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Patent number: 6907758Abstract: A circular knitting machine is described which has a needle cylinder (1), at least one cylinder cam segment (6), a dial arrangement (9) having a dial (10) and at least one dial cam segment (11), an axis of rotation (7), which is coaxial with the needle cylinder (1) and the dial arrangement (10), and at least one thread guide element (25) intended to guide a thread (20). The cylinder cam segment (6) together with the thread guide element (25), and the dial cam segment (11) are rotatable about the rotational axis (7) relative to one another. The needle cylinder (1), and the dial arrangement (9) together with the thread guide (25) are moreover disposed displaceable relative to one another and parallel to the rotational axis (7). According to the invention, the thread guide element (25) is mounted moveable on the cylinder cam segment (6) (FIG. 2).Type: GrantFiled: September 4, 2003Date of Patent: June 21, 2005Assignee: Sipra Patententwicklungs - und Beteiligungsgesellschaft mbHInventors: Dietmar Traenkle, Harald Rehmann
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Patent number: 6897756Abstract: The invention relates to an apparatus with a device for simultaneous transfer of electrical power and information between two components being movable to each other and preferably comprising a stationary and a movable component. According to the invention the apparatus includes a transfer device for the common transfer of power and information, with a primary coil arrangement (5, 6) mounted on one of the components and a secondary coil arrangement (11) mounted on the other component, a power supply (35, 41, 59) connected to the primary coil arrangement (5, 6) and based on pulse width modulation, and means (71, 72) for modifying signals generated by the power supply in dependence on the information to be transferred. The information can be transferred both from the one component to the other component and vice versa (FIG. 6).Type: GrantFiled: July 15, 2003Date of Patent: May 24, 2005Assignee: Sipra Patententwicklungs- und Beteiligungsgesellschaft mbHInventor: Erwin Haisch
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Patent number: 6880366Abstract: A textile machine with at least one dust removal device is described. The dust removal is performed by providing at least one electrostatically chargeable dust collector element (16) and a means (24, 25) for removing dust collected with the dust collector element (16) (FIG. 2).Type: GrantFiled: November 20, 2003Date of Patent: April 19, 2005Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventors: Marcus Mayer, Waldemar Pschellok
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Patent number: 6854294Abstract: A knitting machine and a method to be accomplished on said machine are described, which are suitable for the production of knitwear from hard, inelastic thread material, e.g. from metal threads. According to the invention, at knitting systems (8a, 8b) provided for this purpose, knitting needles (2) are raised to pick up threads, which are then preformed over the upper edges of knocking-over/holding-down sinkers (3) to form loops. Thereafter the stitch formation takes place by needle and sinker movements directed in opposite directions in the manner of the relative technique.Type: GrantFiled: April 5, 2004Date of Patent: February 15, 2005Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventors: Rolf Willmer, Hermann Stauss
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Patent number: 6848278Abstract: The invention relates to a circular knitting machine with a protective cover (17) at least partially surrounding a take down and/or winding up device (15) on the outside. The cover (17) which includes a guide fixed on the machine frame and segments (18 to 23) movably mounted on this. In accordance with the invention the segments (18 to 23) are so arranged at different radial distances from a machine axis (11) that they are movable relative to one another at least partially with mutual overlapping.Type: GrantFiled: April 17, 2003Date of Patent: February 1, 2005Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventors: Bernhard Schaut, Dietmar Traenkle
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Patent number: 6735987Abstract: The invention relates to a circular knitting machine with knitting needles (4) and sinkers (25) for the production of plush fabrics. Each of a plurality of knitting systems has a means (71) for controlling the knitting needles (4) into a knock-over position and pattern devices arranged in front of this means (71). According to the invention, a first pattern device provided with a ground-thread guide (38) serves for selectively controlling the knitting needles (4) into a knitting or tucking position intended for the pick-up of ground thread (39) or a non-knitting position intended for the non-pick-up of ground thread (39). A second pattern device provided with a plush-thread guide (40) serves for selectively controlling the knitting needles (4) into a pick-up position intended for the pick-up of plush thread (41) or an intermediate position intended for the non-pick-up of plush thread (41).Type: GrantFiled: February 14, 2003Date of Patent: May 18, 2004Assignee: SIPRA Patententwicklungs-und Beteiligungsgesellschaft mbHInventors: Ernst-Dieter Plath, Erich Bizer
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Patent number: 6640590Abstract: A circular knitting machine for producing circular knitwear (15) is described, which is slit at one side, spread out with the aid of V-rolls (17) and then taken down and wound up in the spread out state. In accordance with the invention a guide element (44) if fitted at one end (33) of a fabric spreader (25) and extends up to a junction point (43) of the V-rolls (17). The knitwear (15) is guided by means of the guide element (44) in a controlled manner before running on to the V-rolls (17), such that backing-up and warping during its further transport are avoided.Type: GrantFiled: May 3, 2002Date of Patent: November 4, 2003Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventors: Andreas Thoman, Pierre Jaeger
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Patent number: 6609398Abstract: The invention describes a compound needle having a needle part (3) and a slide part (4) for knitting, warp knitting or hosiery machines. The needle part (3) has a needle shaft (3a) and a needle hook (3b), the needle shaft (3a) being provided with a slot-shaped recess (3f) and a guide channel. The slide part has a slide shaft (4a), which is insertable into the guide channel and is movable to and fro in the latter, and a slide hook (4b) which is open in the opposite direction to the needle hook (3b), said slide hook being insertable into the recess (3f) in order to take over a stitch (9) located on the needle shaft (3a).Type: GrantFiled: December 18, 2002Date of Patent: August 26, 2003Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventor: Ernst-Dieter Plath
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Patent number: 6568221Abstract: A circular knitting machine with a frame (1) having a plurality of feet (2, 3, 4), a needle carrier (7), a cam box ring and a take-down and/or winding-up device (14) mounted in the frame (1), wherein at least one of the feet (3, 4) is adjustable for altering the machine width.Type: GrantFiled: April 23, 2002Date of Patent: May 27, 2003Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschatt mbHInventors: Stefan Seeger, Dietmar Traenkle
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Patent number: 6430968Abstract: A knitting machine needle is described with a shank (2), provided on one end with a hook (5). According to the invention, the hook (5) has at least one separation edge (15) on its inside (11) for separation of two thread support regions (16, 17), so that the knitting machine needle is particularly suited for performance of platings (FIG. 1).Type: GrantFiled: April 16, 2001Date of Patent: August 13, 2002Assignee: Sipra Patentenwicklungs - und Beteiligungsgesesslschaft mbHInventor: Kurt Juenthner
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Patent number: 6401495Abstract: A sinker (50) for a knitting machine operating according to the relative technique is described. The sinker (50) contains a front (32), a back (33), a head (34) arranged on one end and having a sinker throat (35) and a knock-over edge (36), a control butt (38) intended to make possible movements in a longitudinal direction (v) and protruding from the front (32), and at least one rocking element (39, 40) designed to make possible pivot movements transverse to the longitudinal direction (v) and provided on the front (32). According to the invention, the sinker (50) also has a spring element (41) intended to compensate for manufacturing inaccuracies, acting transverse to the longitudinal direction (v) (FIG. 4). A knitting machine equipped with such a sinker (50) is also described.Type: GrantFiled: March 20, 2001Date of Patent: June 11, 2002Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventors: Hans-Martin Eppler, Dietmar Traenkle
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Patent number: 6393870Abstract: A circular knitting machine with support disk (2) and a needle cylinder (4) fixed onto it with screws is described. According to the invention, an intermediate ring (17), elastically deformable in the radial direction, is arranged between support disk (2) and needle cylinder (4), through which the stresses that develop from different heat expansions are avoided between these two components.Type: GrantFiled: April 10, 2001Date of Patent: May 28, 2002Assignee: Sipra Patententwicklungs-und Beteiligungsgesellschaft mbHInventors: Hans Martin Eppler, Stefan Seeger, Dietmar Traenkle
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Patent number: 6318227Abstract: The strand guiding device is designed for a circular braiding machine having a braiding point (35) and a first spool (38) for a first strand (37) fed to said braiding point (35). The strand guiding device for strand guiding includes a guide part or guide device (42) for the first strand arranged between the first spool (38) and the braiding point (35), which is movable back and forth to cross the first strand (37) over at least one second strand (32) coming from a respective second spool (31) so that a length of a section of the first strand (37) between the first spool and the braiding point (35) continuously changes, and a device for compensating changes in the length of that section.Type: GrantFiled: November 22, 1999Date of Patent: November 20, 2001Assignee: Sipra Patententwicklungs- U. Beteiligungsgesellschaft mbHInventor: Werner Scherzinger
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Patent number: 6296585Abstract: A driving roller with an outer working periphery having a changeable diameter has a first disk and a second disk arranged coaxially with one another and returnable relative to one another in any operational condition, the first disk being provided with a plurality of radial guides, the second disk being provided with at least one spiral-shaped guide, a plurality of supporting bodies which for abutment of segments provided for the drive belts have a first element cooperating with the radial drives and a second element cooperating with the at least one spiral shaped guide and are supported with these elements so that by a relative turning of the disks an increase or a reduction of the diameter of the working periphery is provided, the radial guides being formed by guiding slots extending through the first disk, the first element being composed of guiding members which are slidingly guided in the guiding slots, the guiding members at both sides of the first disk being provided with guiding webs which laterally eType: GrantFiled: April 1, 1999Date of Patent: October 2, 2001Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbHInventor: Ernst-Dieter Plath
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Patent number: 6250114Abstract: A roller (1) for guiding knitwear produced on a knitting machine, with at least one stub shaft (3) of reduced cross-section projecting to the side of a middle part (2) and at least one first adjusting ring (16) which can be fixed on the stub shaft (3) to form an annular gap is described. The adjusting ring (6) has a first axial end (17) with an outer diameter corresponding to the outer diameter of the middle part (2) and a second axial end (17a) associated with the annular gap (22). In accordance with the invention the adjusting ring (16) is assembled from at least two shells (24, 25) adjoining one another along butt joints (FIG. 5).Type: GrantFiled: May 17, 2000Date of Patent: June 26, 2001Assignee: Sipra Patententwicklungs- u. Beteiligungsgesellschaft mbHInventor: Dietmar Traenkle
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Patent number: 6233979Abstract: A circular knitting machine is described whose components can be adjusted to meet an order with the aid of adjustment data sets stored in a data memory and which relate to a predetermined knitting structure, yarn type, yarn thickness and quality of the knitwear to be produced and preferably arise from knitting processes already carried out on the circular knitting machine. A basic adjustment is preferably first effected on the basis of the adjustment data and can be followed by a fine adjustment with a central adjusting device for the loop size, until the desired quality is attained. (FIG. 1).Type: GrantFiled: May 9, 2000Date of Patent: May 22, 2001Assignee: Sipra Patententwicklungs- und Beteiligungsgesellschaft mbHInventor: Ernst-Dieter Plath