| Patent Number |
Title Of Patent |
Date Issued |
| 4924062 |
Method for hardening discrete identical elements integral with a common structure and regularly |
May 8, 1990 |
| A method and apparatus for hardening discrete identical elements, connected to a supporting structure and regularly spaced, by which a laser beam is focused upon the elements as they travel along a path through a hollow sphere containing a mirror on its inside surface. The light reflecte |
| 4890451 |
Method for loosening and unravelling a textile yarn |
January 2, 1990 |
| The yarn to be loosened is guided by slots (7;8); it is held on one side thereof and it is cut on the other side. Air is injected by a nozzle (13) for driving the cut end of the yarn into a channel (1), between the bottom (11) of this channel and the longitudinal edge of the adjacent fle |
| 4888943 |
Apparatus for loosening and unravelling a yarn |
December 26, 1989 |
| The yarn to be loosened is guided by slots (7;8); it is held on one side thereof and it is cut on the other side. Air is injected by a nozzle (13) for driving the cut end of the yarn into a channel (1), between the bottom (11) of this channel and the longitudinal edge of an adjacent flex |
| 4829759 |
Universal method for loosening and unravelling a textile yarn and device for carrying out this m |
May 16, 1989 |
| The yarn to be loosened is guided by slots (7;8); it is held on one side thereof and it is cut on the other side. Air is injected by a nozzle (13) for driving the cut end of the yarn into a channel (1), between the bottom (11) of this channel and the longitudinal edge of an adjacent flex |
| 4827740 |
Device for controlling the knitting positions of the needles in a knitting machine |
May 9, 1989 |
| In a knitting machine, a needle position control device comprises knitting needles each having five butts, of which one is fixed and the four others are secured in pairs to two needle latches mounted for oscillation in two recesses formed in the stem of the needle. A selection mechanism |
| 4790036 |
Method and device for the automatic cleaning of a toilet seat |
December 13, 1988 |
| A toilet seat (27) is provided with a slide housing (26) comprising nozzles for spraying and/or applying water and/or disinfecting liquid. It comprises at least one wiper for drying the surface of the seat (27). The slide housing (26) is placed over a segment of the seat (27), which then |
| 4582740 |
Process for covering a substrate with threads welded through the use of ultrasounds, a machine f |
April 15, 1986 |
| A machine for producing pile fabric comprises a sonotrode (1) , a matrix (4) of tubes (5) bringing threads (10) onto a support sheet (7) for the purpose of welding rows of loops to the surface of this sheet. The matrix (4) is guided between slides (6) which are parallel to the longitudin |
| 4502902 |
Process and apparatus for ultrasonically welding threads to a material |
March 5, 1985 |
| This machine comprises a sonotrode (1), a matrix (4) of tubes (5) bringing threads (10) onto a support sheet (7) for the purpose of welding rows of loops to the surface of this sheet. The matrix (4) is guided between slides (6) which are parallel to the longitudinal axes of the tubes (5) |
| 4406115 |
Method of and means for unraveling a portion of textile yarn |
September 27, 1983 |
| To unravel a terminal portion of a textile yarn, in particular in preparation for joining that yarn to another one by twisting their ends together, an extremity of the yarn is vibrated to loosen the fibers while a part of the yarn spaced from its end is held fast and the yarn extremity |
| 4315399 |
Procedure for cleaning a rotor of a spinning unit of the open-end type |
February 16, 1982 |
| A cleaning procedure consisting in imparting some ultrasonic vibrations of which the frequency is a harmonic of the natural frequency to at least one mode of vibration of a groove (1b) for union of fibres in a rotor (1) of a spinning unit, and in applying to the rotor a transducer (3) fe |
| 4244169 |
Device for joining textile yarns by axial twisting |
January 13, 1981 |
| A device for joining together two ends of a yarn in order to recreate the initial structure of the yarn comprises two heads provided with radial slots and fixed to rods which are rotatable in order to take up the yarn by means of the slots and to wind the yarn about the rods. The free en |
| 4159558 |
Apparatus for the cutting of columns of thread loops |
July 3, 1979 |
| A pile fabric, especially velvet, can have a selection of yarn strands appearing on one of its faces severed by means of a focused laser beam. According to the invention, the zone of focus of the laser beam is brought successively into contact with predetermined portions of each of the |
