Ravat
Pierre Ravat, Loyettes FR
Patent application number | Description | Published |
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20080205994 | Drill bit and a single pass drilling apparatus - A drill bit and a single pass drilling apparatus are disclosed. The one-piece drill bit is rotatable about a drilling axis and has a connection portion, adapted to be rigidly connected to a drill steel, a pilot part and a reamer part. The reamer part has a leading and at least one trailing first rock machining means disposed on one side of the pilot part within a sector defined by sector angle θ. At least one of the trailing first rock machining means is axially spaced from the leading first rock machining means in the direction toward the trailing end of the drill bit. | 08-28-2008 |
20090285638 | One-piece drill bit for single-pass anchor bolting and single pass drilling apparatus - The present invention relates to a drill bit and a single pass drilling apparatus. The one-piece drill bit has a connection portion, adapted to be rigidly connected to a drill steel, a pilot part and a reamer part. The pilot part has first rock machining means. The reamer part has a first center line and second rock machining means. The second rock machining means is provided axially between said connection portion and said first rock machining means and to one side of the pilot part. The drill bit has a rotational direction. A side of the pilot part facing away from the reamer part is provided with a wear resistant means. The wear resistant means is integral with the first rock machining means. | 11-19-2009 |
Stephane Ravat, Saint Genes Champanelle FR
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20110315516 | Belt For Transferring Plies Containing Metal Reinforcements - Device for transferring a reinforcing ply having the overall shape of a parallelogram and containing reinforcing threads with ferromagnetic properties and making a given angle b, smaller than 90°, with the longitudinal direction of the said reinforcing ply, comprising at least two transfer belts which overlap over a given length l and are separated by a given and small-sized distance, each of the belts comprising a magnetized region of trapezoidal shape, the bases of which are parallel to the longitudinal direction of the belts and are intended to hold the reinforcing ply firmly against the moving surface of the said transfer belts, characterized in that, in the region of overlap of the belts, the side of the trapezium connecting the two bases of the magnetized region of the first belt forms an angle a | 12-29-2011 |
20130199349 | METHOD AND DEVICE FOR MEASURING THE PLY ANGLE PRIOR CUTTING - Cutting device ( | 08-08-2013 |
Stephane Ravat, Clermont-Ferrand FR
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20150239192 | METHOD FOR CUTTING A STRIP OF TIRE REINFORCING PRODUCT COMPRISING WIRES AT AN ANGLE TO THE LONGITUDINAL DIRECTION OF THE PRODUCT - Method for cutting to length a strip formed of preassembled products comprising one or more rubber profiled elements superposed in part on a reinforcing ply made up of threads coated in rubber and making an angle (a) with the longitudinal direction of the strip, during which method the following steps are performed: | 08-27-2015 |
Stéphane Ravat, Saint Genes Champanelle FR
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20130199349 | METHOD AND DEVICE FOR MEASURING THE PLY ANGLE PRIOR CUTTING - Cutting device ( | 08-08-2013 |
Stéphane Ravat, Clermont-Ferrand Cedex 9 FR
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20130199697 | Device for Adjusting a Layer Front - An improved tire manufacturing technique of laying a reinforcing ply on a receiving surface of generally cylindrical shape, said ply comprising a front edge and a rear edge which are intended to be butted against each other, after a complete rotation of the receiving surface, between a maximum tolerance and a minimum tolerance measured relative to a reference source. | 08-08-2013 |
Stéphane Ravat, Clermont-Ferrand Cedex 9 FR
Patent application number | Description | Published |
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20130199697 | Device for Adjusting a Layer Front - An improved tire manufacturing technique of laying a reinforcing ply on a receiving surface of generally cylindrical shape, said ply comprising a front edge and a rear edge which are intended to be butted against each other, after a complete rotation of the receiving surface, between a maximum tolerance and a minimum tolerance measured relative to a reference source. | 08-08-2013 |
Vijendra Singh Ravat, Hyderabad IN
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20130133289 | PROCESS FOR THE PREPARATION OF AMORPHUS VALGANCYCLOVIR HYDROCHLORIDE - Amorphous valgancyclovir hydrochloride has a median particle size of below 100 μm. A process for the preparation of the compound includes dissolving valgancyclovir hydrochloride in at least one solvent, removing the solvents under moisture controlled conditions, and drying the wet mass. | 05-30-2013 |