Patents by Inventor Jean Venot

Jean Venot 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).

  • Patent number: 4691743
    Abstract: In order to remove waste slivers produced by cutting false selvedges in a weaving loom, at least two slivers are introduced into a rotating feed duct and subjected to a false twist, thus automatically balancing the tensions of the different slivers. The cord thus formed falls down from the feed duct outlet onto a delivery coiler on which the spiral turns are successively allowed to slip off the rotating coiler under the control of a brake system and then discharged into a can.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: September 8, 1987
    Assignee: Societe Alsacienne de Construction de Material Textile
    Inventor: Jean Venot
  • Patent number: 4489540
    Abstract: The invention relates to a process and device for making a spun yarn of fibres comprising an internal core which consists in subjecting the yarn to form the core to a momentary false twist by means of a spindle and projecting elementary fibres onto this yarn. Such elementary fibres are projected by means of a mobile guide surface on which the fibres are delivered tangentially, the core likewise being displaced tangentially with respect to the guide surface in a direction concurrent with the direction of delivery of the fibres.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: December 25, 1984
    Assignee: ASA S.A.
    Inventors: Jean-Louis Faure, Jean Venot
  • Patent number: 4488397
    Abstract: A device for stretching a rove of fibers during a spinning operation to permit forming the rove into spun yarn, the device comprising a condenser element placed after the actual stretching system.According to the invention, the condensing element is in the form of a movable guiding surface on which the fibers are delivered tangentially, the guiding surface pulling permits a force to be exerted on the end of the fibers coming out of the stretching system and limits the twist run back communicated by the spinning system.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: December 18, 1984
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 4481759
    Abstract: The present invention relates to a process for making a core spun yarn, wherein elementary fibres are projected onto a yarn, the yarn being subjected to the action of a false twist spindle. The projection of the fibres is obtained by means of a mobile guiding surface on which the fibres are delivered tangentially and are maintained paralleled and flat. Furthermore, the core is delivered tangentially on the paralleled fibres obliquely and in the direction of displacement of said fibres. The invention also relates to a device for carrying out this process.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: November 13, 1984
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 4301358
    Abstract: A yarn heating device for closed or open oven use has a plurality of elongate chambers for heating fluid. These are connected at one end to a reservoir for heating fluid having a horizontal connecting pipeline and one or more vertical pipes below it, these pipes having heating means. The chambers are connected at their other ends to a common collector by respective vertical pipelines which have separators near the collector, the separators having small orifices.
    Type: Grant
    Filed: January 19, 1979
    Date of Patent: November 17, 1981
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 4247503
    Abstract: The process of an apparatus for asymmetrically heat treating chemical yarns by applying different temperatures on either side of a plane passing through two generatrices of a peripheral surface of each orifice through which the yarns are extruded during production. One side of the plane is preferably at a temperature slightly higher than the melting point of the material and the other side of the plane is preferably at a temperature slightly lower than the decomposition point of the material.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: January 27, 1981
    Assignee: ASA S.A.
    Inventors: Jean Venot, Andre Mottet
  • Patent number: 4206588
    Abstract: A yarn throwing and twisting machine has at each of a number of working positions two or more throwing spindles, a twisting spindle, a manually disengageable yarn feeder, and yarn break detectors. Pneumatic jacks are provided to disengage the spindles and feeder upon yarn breakage and are controlled by air supplied through a solenoid valve responsive to the yarn break detectors and by a manually operable valve between the throwing and twisting spindles. The solenoid valve is closed, however, upon manually disengagement of the yarn feeder for the purpose of allowing starting up at an individual working position after yarn breakage.
    Type: Grant
    Filed: January 31, 1979
    Date of Patent: June 10, 1980
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 4136512
    Abstract: A continuous twisting and cabling machine including a yarn feeding and twisting section and a cabling and rewinding section positioned below the twisting section. The twisting section includes a series of removable assemblies supporting a series of twist spindles, control and brake means for the spindles, connecting means to a transporter and fixing means for attachment to the cabling and rewinding section.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: January 30, 1979
    Inventor: Jean Venot
  • Patent number: 4115985
    Abstract: A method and apparatus for the thermal treatment of textile articles in which a moving yarn is delivered from a yarn supply and a main thermal treatment is carried out in a conventional manner by contact with a heated oven, the yarn is cooled and a false twist is applied which feeds back to the main thermal treatment zone. The yarn is then subjected to a further heat treatment and the untwisted yarn is rewound. The yarn is subjected to a complementary heat treatment before and/or after the main thermal treatment by wetting the yarn and then heating it by high frequency heating.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: September 26, 1978
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 4076075
    Abstract: A yarn heating device comprising a lower vessel containing a heat transfer liquid and a heating device passing through said vessel over its entire length and intended to vaporize the heat transfer liquid, and an upper vessel connected to the lower vessel by a plurality of vertical conduits, through which pass treatment tubes of stainless steel or the like intended for the passage of the moving yarn, the upper part of the or each treatment tube being surrounded by a metal part which is a very good heat conductor.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: February 28, 1978
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 4063697
    Abstract: A device for reducing the otherwise minimum unthreading distance between the end of a bobbin and an unthreading guide in a textile yarn unthreading machine. The device comprises a member which defines a formed edge surface, preferably in the form of a circular disc, mounted substantially perpendicular to the axis of the bobbin and concentric with this axis. The disc is positioned between the bobbin and the unthreading guide to define a specially shaped, yarn supporting edge. The positioning of the disc is such that, as the yarn passes over the edge of the disc while being unwound, the angle formed by the straight line which joins the edge of the disc and the facing edge of the bobbin relative to said axis is equal to the half-angle of unthreading. Further the angle formed by the straight line which joins the edge of the disc to the unthreading guide, relative to the said axis, is markedly greater than the half-angle of unthreading.
    Type: Grant
    Filed: September 21, 1976
    Date of Patent: December 20, 1977
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 4047374
    Abstract: A spindle adapted for mounting on the framework of a false twist texturizing machine. The spindle includes a platen having three bosses mounted perpendicularly thereon, the bosses being positioned on the platen to form a triangle. Friction discs are carried on the bosses and overlap one another to define a zig-zag path for the yarn. A two-piece fixed guide tube aligned with the center of the triangle formed by the bosses feeds the yarn into and out from the spindle. A motor pulley is mounted on a lever which pivotally attaches to the platen, the motor pulley being adapted to engage a tangential belt disposed adjacent the platen to impart rotary motion to the pulley. A belt drive interconnects the motor pulley with the bosses to rotate the same. A rod pivots the lever to engage or disengage the motor pulley with the tangential belt and control rotation of the bosses.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: September 13, 1977
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 3946546
    Abstract: A machine for the false twist texturing of textile threads wherein the false twist textured threads are subjected to a second heat treatment, and including fluid pressure means for transporting the thread through the second heat treatment section of the machine to the thread take-up position to facilitate thread-up of the machine.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: March 30, 1976
    Assignee: Chavanoz S. A.
    Inventor: Jean Venot
  • Patent number: 3942312
    Abstract: A textile false twist texturing machine having improved thread-up comprising for each thread working position means for removing fumes given off in the heaters and means for threading up and guiding the thread in the upper part of the machine, and wherein the means for threading up and guiding the thread extends continuously from the outlet of the first thread delivery means to the entry of the first heater, and is coupled at the entry into the first heater with the fume removal means.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: March 9, 1976
    Assignee: Chavanoz S.A.
    Inventor: Jean Venot