Needle Patents (Class 112/281)
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Patent number: 10604876Abstract: A needle clamp (1) for sewing machine (100) is provided. The needle clamp (1) comprises a body (2) at least partially made of a thermally conductive material and having retaining means (3) for constraining at least one needle (10). The needle clamp comprises a thermoelectric cooling device (5) directly or indirectly constrained to a portion of said body (2).Type: GrantFiled: December 22, 2017Date of Patent: March 31, 2020Assignee: Sanko Tekstil Isletmeleri San. Ve Tic. A.S.Inventors: Serkan Mert, Alper Cesit, Ozgur Cobanoglu
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Patent number: 10422062Abstract: A tufting machine comprises a needle bar and a needle bar drive mechanism for moving the needle bar towards and away from a backing material passed through a tufting zone by means of a backing material feed mechanism. The machine further comprises at least one controller and a cooling liquid system for cooling at least one controller, the cooling liquid system comprising at least one cooling member having a cooling liquid channel for the passage of a cooling liquid and being in heat transfer contact with at least a part of the electrical components of a controller.Type: GrantFiled: October 30, 2015Date of Patent: September 24, 2019Assignee: VANDEWIELE NVInventor: Geert Debuf
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Patent number: 7296525Abstract: A sewn product is protected from being stained by melted leavings of a work material by cooling a needle moving at a high speed, and thus the quality of the product may be enhanced when the work material is sewed by a presser foot of the present invention, and a sewing machine using the same, wherein the presser foot is provided with a fluid line for injecting a fluid toward the needle.Type: GrantFiled: November 10, 2005Date of Patent: November 20, 2007Assignee: Yupoong, Inc.Inventor: Byoung-Woo Cho
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Patent number: 5931107Abstract: A stitching head for a computer numerically controlled stitching machine includes a thread tensioning mechanism for automatically adjusting thread tension according to the thickness of the material being stitched. The stitching head also includes a mechanism for automatically adjusting thread path geometry according to the thickness of the material being stitched.Type: GrantFiled: December 22, 1997Date of Patent: August 3, 1999Assignee: McDonnell Douglas CorporationInventors: Patrick J. Thrash, Jeffrey L. Miller, Richard Codos
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Patent number: 4562783Abstract: A combination finger guard and needle protector for use on a sewing machine having a reciprocating needle and presser foot. The needle protector includes a bracket which is attached to a support arm of the sewing machine and has an air jet carried thereon. A source of pressurized air is connected to the air jet for cooling the needle during the sewing operation. A substantially U-shaped member is carried adjacent a front end of the bracket partially encircling the reciprocating needle for providing a finger guard for the needle.Type: GrantFiled: September 19, 1983Date of Patent: January 7, 1986Inventor: Dale McClellan
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Patent number: 4480565Abstract: A needle cooling apparatus including a nozzle assembly maneuverable between operative and inoperative positions. In its operative position, the nozzle assembly is adapted to direct a cooling medium against the sewing machine needles. The nozzle assembly is operatively associated with a drive adapted to arrange and biasably maintain the nozzle assembly in its operative position in response to machine actuation.Type: GrantFiled: November 6, 1981Date of Patent: November 6, 1984Assignee: Union Special CorporationInventors: John W. Harbst, James A. Frendreis
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Patent number: 4369723Abstract: The pointed tip of a sewing machine needle is immersed in a liquid lubricant as it reaches the lower end of its downward stroke through the material being sewn, so as to coat the tip of the needle with a lubricant and reduce the friction and therefore the heat generated by the friction between the needle and the material being sewn.Type: GrantFiled: February 25, 1981Date of Patent: January 25, 1983Assignee: Opelika Manufacturing CorporationInventors: William C. Griffith, Jr., Charles E. Brocklehurst
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Patent number: 4305339Abstract: An apparatus for cooling the needle of a sewing machine to reduce problems of thread breakage because of frictional heat build-up. The apparatus includes a vortex tube secured to the worktable for a sewing machine at a point remote from the sewing head of that machine, a nozzle assembly affixed to the pressure foot bushing of the machine and directed towards the sewing needle, and an elongated insulated noise-muffling hose extending from the cold air outlet of the remotely-positioned vortex tube to the nozzle assembly. The nozzle assembly includes a generally vertically oriented nozzle tube having a plurality of side openings for directing jets of cooling air towards the sewing needle, and an adjustable sleeve for controlling the discharge of such air.Type: GrantFiled: September 28, 1979Date of Patent: December 15, 1981Assignee: Vortec CorporationInventor: Leslie R. Inglis
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Patent number: 4285293Abstract: This disclosure relates to a device that is adapted to individually and simultaneously guard and cool each needle of a sewing machine. The device includes an apertured member that is adjustably secured to the frame of the machine in a position below the work support of the machine. The apertured member is adapted to receive the needle or needles during the lower portion of its stroke. The diameter of the needle receiving aperture or bore provides a camming or guarding surface against which the needle may impinge, in the event that on its downstroke the needle is deflected or bent in any direction away from its recipricatory path. A passageway, formed in the member, allows for the transmission of a cooling medium to the needle receiving bore so as to cool the eye area and point of the needle as it passes therethrough.Type: GrantFiled: October 26, 1979Date of Patent: August 25, 1981Assignee: Union Special CorporationInventor: Wayne F. Martling
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Patent number: 4228748Abstract: A system for controlling the starting end of a thread is disclosed in which air is provided via a conduit and nozzle to a point adjacent the needle and above the presser foot of the sewing machine. The arrangement is such that the air is controlled by a valve whose operation is in turn controlled by the position of the presser foot so that air is supplied only when the presser foot is raised and the sewing machine is in a stopped position.Type: GrantFiled: October 29, 1979Date of Patent: October 21, 1980Inventor: Armand A. Dufault
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Patent number: 4193364Abstract: A needle cooler for a sewing machine with a vortex tube producing a cold air and hot air stream, a mounting block for mounting the cooler on a sewing machine with a bore connected to the vortex tube for transmitting the cold air to a nozzle via a flexible plastic tube, and an L-shaped positioning rod extending through bores in the block and nozzle for positioning the nozzle in a desired orientation with set screws engaging the rod in the bores for holding the nozzle in the desired orientation.Type: GrantFiled: August 28, 1978Date of Patent: March 18, 1980Assignee: Clevepak CorporationInventor: Owen F. Dunne
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Patent number: 4067276Abstract: The control device controls the sewing speed of a sewing needle automatically in a manner such that the temperature of the sewing needle, subjected to the influence of heat generated by friction with the material being sewn, does not exceed an adjustable predetermined value. Respective measuring members determine the temperature of the sewing needle and the temperature of a reference needle mounted at a location spaced from the sewing needle, and are connected to the input of a differential comparator circuit providing the differential voltage of the measuring members. A signal generator is operatively associated with the sewing needle and produces output pulses responsive to reciprocation of the sewing needle, to control connection of the output of the differential comparator circuit to the input of the sewing machine motor control. The reference needle is substantially identical with the sewing needle.Type: GrantFiled: October 15, 1976Date of Patent: January 10, 1978Assignees: Pfaff Industriemaschinen GmbH, Oskar Mohilo, Karl H. KesslerInventors: Oskar Mohilo, Karl H. Kessler, Friedrich Wilhelm Stumpf