Abstract: A fluid dispenser including a reservoir forming a neck presenting a thread, a dispenser member, and a fastener system including a fastener ring provided with assembly means for assembling on the thread of the neck in such a manner that the ring is unscrewable from the neck over an axial unscrewing stroke. The outer wall of the neck is provided with a shoulder, and the fastener system includes a security band engaged on the fastener ring. The band axially abuts the shoulder and is secured to the fastener ring at the end of the unscrewing stroke, so as to prevent the fastener system from being removed from the neck immediately after the fastener ring has been unscrewed. The security band includes an unblocking mechanism for disengaging the band from its axial abutment with the shoulder of the neck.

Abstract: A fluid dispenser comprising: a fluid reservoir including a neck defining an opening; and a dispenser member, such as a pump or a valve, including a body that is held in stationary manner in the opening of the reservoir, defining an annular gap between the neck and the body; a source of radiation being disposed in the annular gap.

Abstract: A fluid dispenser including a fluid reservoir including a neck with a constricted opening that communicates with an inside volume; and a dispenser member including a fluid inlet that is provided with a dip tube, the dip tube provided with a substantially-plane flexible sheet having shape memory. The sheet presents a transverse dimension, in the direction that is perpendicular to the dip tube, that is greater than the dimension of the constricted opening, such that the sheet must be caused to take up a deformed configuration in order to pass through the neck, and must then relax into a substantially-plane rest configuration inside the inside volume. The sheet presents a bottom edge having a portion that, in the rest configuration, penetrates into the constricted opening to initiate the deformation of the sheet, so as to bring it subsequently into its deformed configuration.

Abstract: A fluid dispenser device for mounting on a reservoir. The device has a dispenser member with a body and an actuator rod that is axially movable down and up with the body; a fastener ring for fastening the body on an opening of a reservoir; and a dispenser head mounted on the actuator rod. The dispenser head includes a connection sleeve engaged axially on the actuator rod, the head including a radial duct, an orifice formed in an outer casing that surrounds the connection sleeve, defining a substantially annular gap. The fastener ring includes an axial guide for preventing the dispenser head from turning freely, while enabling it to move axially. The dispenser head includes a guide element that co-operates with the guide, the guide element extending radially from the connection sleeve to the outer casing, in the annular the gap.

Abstract: A fastener device for fastening a dispenser member (4), such as a pump or a valve, onto a receptacle neck (31). The device includes a fastener ring (1) including both an abutment (13) and a fastener (12) for fastening onto the receptacle neck; and a covering hoop (2) that is engaged axially from top to bottom around the ring (1). The hoop includes a hook (25) co-operating with the abutment for acting together to axial retain the hoop on the ring. The retention mechanism includes a plurality of mutual engagement elements defining distinct axial engagement positions for engaging the hoop on the ring.

Abstract: A fluid dispenser head for mounting on a fluid reservoir (1), said head comprising: a dispenser member (2), such as a pump, for taking fluid from the reservoir (1), said member (2) including a body (20) and an actuator rod (24) that is displaceable along an actuation axis; an axially-displaceable pushbutton (7) for actuating the dispenser member (2) by pressing on the actuator rod (24); a covering jacket (6) for mounting securely relative to the reservoir (1), the pushbutton (7) being axially movable relative to the jacket (6), said jacket (6) having a stationary reception housing (600) formed therein; and a nozzle (55) through which the fluid is dispensed each time the dispenser member (1) is actuated, the nozzle (55) being received in said stationary reception housing (600) of the jacket (6), so that the nozzle (55) is held axially relative to the reservoir (1), the fluid dispenser head being characterized in that the nozzle (55) is received in said housing (600) from inside the jacket (6).

Abstract: An abrasive element has a first surface region which coincides with an enveloping surface of the element, and a second surface region which does not. When the element is pressed against a planar surface, part of the second surface region, which is provided with abrasive material, comes into contact with the surface. Also disclosed are a system comprising at least two part-elements which can be connect to form an abrasive element, and methods for making and using the abrasive element.

Abstract: The present invention relates to a cooling disc for cooling grinding tools, having at least one fastening opening, a side which can face a grinding tool, a side which can face away from a grinding tool, a first contact face which is configured in such a way that it can be brought into contact with a corresponding face of a holding element of a grinding tool, and a second contact face which is configured in such a way that it can be brought into contact with a corresponding face of a fixture for a grinding tool. Furthermore, the invention relates to a grinding system which comprises at least one grinding tool which is provided with a holding element, a fixture for a grinding tool, and at least one cooling disc.

Abstract: A fastener device for fastening a dispenser member (4), such as a pump or a valve, onto a receptacle neck (31), the device comprising: a fastener ring (1) including both abutment means (13) and fastener means (12) for fastening onto the receptacle neck; and a covering hoop (2) that is engaged axially from top to bottom around the ring (1), the hoop including hook means (25) co-operating with the abutment means for acting together to define axial retainer means for retaining the hoop on the ring; said device being characterized in that the retainer means include a plurality of mutual engagement elements defining distinct axial engagement positions for engaging the hoop on the ring.

Abstract: A fluid dispenser head for mounting on a fluid reservoir (1), said head comprising: a dispenser member (2), such as a pump, for taking fluid from the reservoir (1), said member (2) including a body (20) and an actuator rod (24) that is displaceable along an actuation axis; an axially-displaceable pushbutton (7) for actuating the dispenser member (2) by pressing on the actuator rod (24); a covering jacket (6) for mounting securely relative to the reservoir (1), the pushbutton (7) being axially movable relative to the jacket (6), said jacket (6) having a stationary reception housing (600) formed therein; and a nozzle (55) through which the fluid is dispensed each time the dispenser member (1) is actuated, the nozzle (55) being received in said stationary reception housing (600) of the jacket (6), so that the nozzle (55) is held axially relative to the reservoir (1), the fluid dispenser head being characterized in that the nozzle (55) is received in said housing (600) from inside the jacket (6).

Abstract: The invention relates to a process for preparing racemic metallocene biphenoxide complexes by reacting bridged transition metal complexes with cyclopentadienyl derivatives of alkali metals or alkaline earth metals and heating the reaction mixture obtained in this way to a temperature in the range from ?78 to 250° C., to the corresponding metallocene biphenoxide complexes and to their use as catalysts or as constituents of catalysts for the polymerization of olefinically unsaturated compounds or as reagents or catalysts in stereoselective synthesis.

Abstract: A printed circuit board having a thermally conductive and electrically insulating layer (1) at the top side of the printed circuit board (6), and a heat conducting element (2) which thermally connects the layer (1) to the underside of the printed circuit board (6). Furthermore, a method for producing such a printed circuit board (6) is described.

Abstract: A grinding wheel for the grinding of curved surface portions (0) consists basically of a carrying body (2, 12) and an abrasive (3, 13, 23) applied to the carrying body. The carrying body (2, 12) has a circumferential surface (4), of which the section relative to a radial plane (R) has a curvature. The abrasive (3, 13, 23) is arranged on the carrying body (2, 12), at least in the region of the circumferential surface (4). The abrasive thereby likewise has, in section, relative to the radial plane (R), a curvature which corresponds essentially to the curvature of the circumferential surface (4).

Abstract: A process for treating a mixture of substances containing structured constituents and organic matter, and a device for carrying out this process are disclosed. In accordance with the invention, the mixture of substances is subjected to pulse-type or periodical application of force, so that the formation of flow channels for a leaching fluid or process air in a bulk material may be prevented.

Abstract: The invention relates to a multiflow liquid ring pump, comprising a rotor housing that encompasses the pump rotor. A side shield is arranged on both front ends. Each side shield has an inlet and an outlet on the side facing the other side shield, the inlet and outlet being interconnected. An admission hole for the feed line and a pressure hole for the discharge line are provided. Each side shield has at least one additional connection hole. The invention is characterized in that the outer jacket surface of each side shield (3, 4) flushes with and closes the outer jacket surface of the rotor housing (2) and in that the inlet (7, 9), the outlet (8, 10) and the connection hole (11, 12, 13, 14) are connected by channels (15, 16, 30, 31) arranged in the rotor housing (2).

Abstract: A solenoid valve comprising a body in which there is fixed an electromagnet having a plunger core carrying at least one valve member and movable between first and second positions corresponding respectively to an excited state and to a rest state of the electromagnet, and a manual control pushbutton mounted on the body transversely to the plunger core firstly to slide between an active position in which a cam-forming end of the pushbutton co-operates with the plunger core to bring it into its first position and an inactive position into which the pushbutton is returned resiliently and its cam-forming end is disengaged from the plunger core, and secondly, while in the active position, to pivot between a locked position in which the pushbutton co-operates with an abutment element secured to the body which opposes resilient return, and an unlocked position in which the pushbutton escapes from the abutment element, the abutment element including means enabling it to be releasably fixed to the body.

Abstract: A miniature solenoid valve comprising: a valve body; an electromagnet having a yoke secured to the body and a plunger core movable relative to the yoke along a longitudinal axis of the electromagnet; a pneumatic chamber formed in the body adjacent to the end of the plunger core that faces away from the yoke, into which chamber there opens out freely a first duct and, each via a respective seat, second and third ducts, with the openings of the second and third ducts facing in opposite directions and being coaxial about the longitudinal axis of the electromagnet; and first and second valve members facing the two seats respectively with clearance, the first valve member being carried by the plunger core and the second valve member being carried by moving equipment held in contact with the plunger core so as to be moved therewith, in which the two seats are provided at respective ends of a single seat-carrier piece which includes internally the ends of the second and third ducts, said piece being engaged in t

Abstract: A hydraulic damper (10) for damping vibrations in the fluid flow path between a hydraulic pressure source and an associated hydraulic consumer comprises a cylinder (11) having a bore (19). A piston (12) is sidably received in the bore and has a sealing means (30) in contact with the bore to define on one side of the sealing means a first chamber (13) for connection with the hydraulic pressure source and on the other side of the sealing means a second chamber (14) for connection with the associated hydraulic consumer. The cylinder has a sealing zone (20) which in a first operative state of the damper is contacted by the sealing means. The piston (12) is capable in response to an increase in hydraulic pressure in the first chamber (13) of moving in the bore to reduce the volume of the second chamber (14) such that eventually the sealing means (30) moves out of the sealing zone to open fluid flow means (22) through which hydraulic fluid can flow from the first chamber to the second chamber.

Abstract: An grinding body includes an annular carrier element. Grinding blades are arranged on both sides of the carrier element in a fan-like manner, the blades being overlapped in opposite directions on opposite sides of the carrier element. One side of the body is covered by a shield which forms part of a retainer for securing the body to a grinder.