Abstract: An abrasive tool for machining surfaces, which comprises a support associated with at least one abrasive layer, and a first layer and a second layer, both of which are made of elastically deformable material and are interposed between said support and said abrasive layer; the second layer has a higher stretch modulus than the first layer and is arranged in an intermediate position between the first layer and the abrasive layer, and the first layer is associated with the support.

Abstract: An abrasive tool for machining surfaces, which comprises a support associated with at least one abrasive layer, and a first layer and a second layer, both of which are made of elastically deformable material and are interposed between said support and said abrasive layer; the second layer has a higher stretch modulus than the first layer and is arranged in an intermediate position between the first layer and the abrasive layer, and the first layer is associated with the support.

Abstract: A wheel hub bearing unit including a plurality of rolling bodies disposed between annular elements. One of the annular elements is a rotating element that includes a spindle on a side facing the outboard side of the vehicle having a mounting flange adapted to receive a vehicle wheel. A frontal surface of the mounting flange is covered by a layer of UV photopolimerizable synthetic plastic material having a predetermined thickness deposited on the frontal surface of the flange in the non-polimerized state by a mixed air spraying nozzle, by rotating the wheel hub bearing unit about a symmetry axis thereof with the nozzle arranged at a radial distance from a peripherally outer edge of the flange, and has a spraying axis which forms, with the symmetry axis, an angle from 20° to 80°; the synthetic plastic material being sprayed by the nozzle at a temperature higher than the room temperature.

Abstract: A bearing unit for a vehicle wheel having a radially outer stationary ring provided with an axial lug, with a flange transverse to an axis of rotation and with an annular channel formed between the axial lug and the flange and delimited axially by a bottom surface. A radially inner rotatable ring defining, together with the stationary ring, a space; an encoder fixed onto the inner ring and extending outside of the space and in front of the axial lug; a protective cover mounted on the axial lug to protect the encoder and close off the space and provided with a side wall mounted on the outer cylindrical surface and having a bent edge arranged axially in abutment against the bottom surface of the annular channel; sealing means disposed between the cylindrical side wall and the tubular axial lug to seal the cylindrical side wall on the outer cylindrical surface.

Abstract: A bearing unit for a vehicle wheel is provided having an axis of rotation and a radially outer stationary ring including a tubular axial lug delimited by an outer cylindrical surface, and with a flange transverse to the axis of rotation and axially delimited. A radially inner rotatable ring defines, with the ring, a space. An encoder is fixed to the inner ring and extends outside of the space and in front of the axial lug. A protective cover mounted on the axial lug to protect the encoder and close off the space. The stationary ring includes a shaped annular channel formed across the axial surface and delimited axially by a bottom surface and the side wall with a bent edge arranged axially in abutment against the bottom surface of the annular channel. Sealing means are arranged between the bent edge and the bottom surface to seal the annular channel.

Abstract: A wheel hub bearing unit including a plurality of rolling bodies disposed between annular elements. One of the annular elements is a rotating element that includes a spindle on a side facing the outboard side of the vehicle having a mounting flange adapted to receive a vehicle wheel. A frontal surface of the mounting flange is covered by a layer of UV photopolimerizable synthetic plastic material having a predetermined thickness deposited on the frontal surface of the flange in the non-polimerized state by a mixed air spraying nozzle, by rotating the wheel hub bearing unit about a symmetry axis thereof with the nozzle arranged at a radial distance from a peripherally outer edge of the flange, and has a spraying axis which forms, with the symmetry axis, an angle from 20° to 80°; the synthetic plastic material being sprayed by the nozzle at a temperature higher than the room temperature.

Abstract: A bearing unit having an axis of rotation and provided with a stationary ring and a rotatable ring arranged coaxially with respect to one another, a magnetic encoder fixed onto the inner ring and extending in front of an annular surface of the stationary ring; and a protective cover mounted on the external ring to protect the encoder and close off a space defined between the two rings; an annular channel being formed in the stationary ring and sealing means being arranged between the side wall and the axial lug within the annular channel so as to seal the cover and prevent the infiltration of impurities between the cover and the axial lug.

Abstract: A bearing unit for a vehicle wheel is provided having an axis of rotation and a radially outer stationary ring including a tubular axial lug delimited by an outer cylindrical surface, and with a flange transverse to the axis of rotation and axially delimited. A radially inner rotatable ring defines, with the ring, a space. An encoder is fixed to the inner ring and extends outside of the space and in front of the axial lug. A protective cover mounted on the axial lug to protect the encoder and close off the space. The stationary ring includes a shaped annular channel formed across the axial surface and delimited axially by a bottom surface and the side wall with a bent edge arranged axially in abutment against the bottom surface of the annular channel. Sealing means are arranged between the bent edge and the bottom surface to seal the annular channel.

Abstract: A bearing unit for a vehicle wheel having a radially outer stationary ring provided with an axial lug, with a flange transverse to an axis of rotation and with an annular channel formed between the axial lug and the flange and delimited axially by a bottom surface. A radially inner rotatable ring defining, together with the stationary ring, a space; an encoder fixed onto the inner ring and extending outside of the space and in front of the axial lug; a protective cover mounted on the axial lug to protect the encoder and close off the space and provided with a side wall mounted on the outer cylindrical surface and having a bent edge arranged axially in abutment against the bottom surface of the annular channel; sealing means disposed between the cylindrical side wall and the tubular axial lug to seal the cylindrical side wall on the outer cylindrical surface.

Abstract: A bearing unit having an axis of rotation and provided with a stationary ring and a rotatable ring arranged coaxially with respect to one another, a magnetic encoder fixed onto the inner ring and extending in front of an annular surface of the stationary ring; and a protective cover mounted on the external ring to protect the encoder and close off a space defined between the two rings; an annular channel being formed in the stationary ring and sealing means being arranged between the side wall and the axial lug within the annular channel so as to seal the cover and prevent the infiltration of impurities between the cover and the axial lug.

Abstract: An upgrade analysis unit can include functionality to analyze a customized software product and compute a convenience for using the upgrade toolkit. The upgrade analysis unit automatically generates an upgrade approach based on the convenience. The upgrade approach identifies software product modules recommended for automatic upgrade with the upgrade toolkit.

Abstract: A method for protecting sensitive data during execution time. The sensitive data are normally stored on permanent storage devices (e.g. a hard disk). The method, according to the present invention is based on the creation at system boot of a runtime process and a corresponding runtime memory space. The sensitive data are then moved to the runtime memory space and the copy on the storage device is deleted or made unusable by users. At shutdown time the sensitive data are copied back to the storage device according to the uptodate version on the runtime memory. In particular the present invention is applied to a license management system which allows nodelocked licenses on client system even if the client is disconnected from the network. License information are considered sensitive data which should be protected during execution. A device driver is created at system boot time and a kernel cache memory is allocated to the driver.

Abstract: An upgrade analysis unit can include functionality to analyze a customized software product and compute a convenience for using the upgrade toolkit. The upgrade analysis unit automatically generates an upgrade approach based on the convenience. The upgrade approach identifies software product modules recommended for automatic upgrade with the upgrade toolkit.

Abstract: A method for protecting sensitive data during execution time. The sensitive data are normally stored on permanent storage devices (e.g. a hard disk). The method, according to the present invention is based on the creation at system boot of a runtime process and a corresponding runtime memory space. The sensitive data are then moved to the runtime memory space and the copy on the storage device is deleted or made unusable by users. At shutdown time the sensitive data are copied back to the storage device according to the uptodate version on the runtime memory. In particular the present invention is applied to a license management system which allows nodelocked licenses on client system even if the client is disconnected from the network. License information are considered sensitive data which should be protected during execution. A device driver is created at system boot time and a kernel cache memory is allocated to the driver.

Abstract: A method and system for providing flexibility to a license management system. A license management system permits the concurrent use of n copies of a software program over a network comprising a plurality of client workstations, each client workstation having a copy of the software program installed thereon requiring an authorization from one of a plurality of S license servers each time the software program is used. For security reasons, the license management system requires that at least the integer majority of the plurality of license servers is active at any time. The method and system allow to change the number of license servers, but impose the following limit: taken s1 and s2 respectively as the minimum and the maximum number of servers that may belong to the cluster, the sum of the integer majority of s1 and of the integer majority of s2 must be strictly greater than s2.

Abstract: A flexible backing for abrasive material in sheets, constituted by a body which is composed of at least three materials which are stably coupled in layers, an intermediate layer being constituted by a steel core, and the outer layers being constituted by laminae made of elastic material which have different moduli of elasticity.