baber/WOPTO huggingface dataset:
Patent DE-102004043531-A1 (DE)
Title: Batteriepaket, mit einem Batteriepaket verbindbares Elektrogerät und Verfahren zum Identifizieren eines Batteriepaket-Typs
Inventor: YAMAGUCHI MASAO
IPC: H01M2/10
Filed: 2004-09-08
Abstract: Ein Batteriepaket (2) weist eine wiederaufladbare Batterie (6), ein mit den Elektroden der wiederaufladbaren Batterie (6) verbundenes Paar von nach außen bloßgelegten Lade-/Entlade-Anschlüssen (4) und einen nach außen bloßgelegten Batteriepaket-Signalanschluss (5) zum Identifizieren des Typs des Batteriepakets (2) auf. Das Batteriepaket (2) umfasst weiterhin ein mit dem Batteriepaket-Signalanschluss (5) verbundenes Batteriepaket-Kommunikationsteil (7) zum Empfang eines von einer elektrischen Geräteeinheit (1) durch den Batteriepaket-Signalanschluss (5) übertragenen Authentizitätssignals, ein Zufallszahlen generierendes Teil (9) zum Generieren einer Zufallszahl, basierend auf einer vorbestimmten Bedingung, und ein Batteriepaket-Kontrollteil (8) zum Generieren eines Erfassungssignals, basierend auf dem von dem Batteriepaket-Kommunikationsteil (7) empfangenen Authentizitätssignals und der von dem Zufallszahlen generierenden Teil (9) generierten Zufallszahl, und zum Übertragen des Erfassungssignals von dem Batteriepaket-Kommunikationsteil (7) zu der Seite der elektrischen Geräteeinheit (1) durch den Batteriepaket-Signalanschluss (5).
Patent DE-102004057060-A1 (DE)
Title: Drive assistance device for detecting vehicle, has unit for detecting lane and for localizing of objects in surroundings of motor vehicle, and unit operable by evaluating device and for displaying of warning signals
Inventor: GERN AXEL
IPC: G08G1/16
Filed: 2004-11-25
Abstract: The device has a unit for detecting a lane and for localizing of objects in surroundings of a motor vehicle (1). A unit operable by an evaluating device (7) or by the evaluating device with the unit for detecting a vehicle oncoming on the own lane is provided for displaying of warning signals. The warning signal is an electromagnetic signal processable and receivable from the oncoming vehicle. An independent claim is also included for a method for detecting a motor vehicle oncoming on the lane.
Patent DE-102004058578-A1 (DE)
Title: Preparation of catalyst system useful for olefin polymerization involves bringing complex of late transition metal of the periodic table of the elements and aluminoxane into contact with one another and adding boron compound
IPC: C07F19/00
Filed: 2004-12-03
Abstract: Preparation (M1) of a catalyst system for olefin polymerization involves bringing complex (a) of a transition metal of groups 8 - 10 of the periodic table of the elements, aluminoxane (b) into contact with one another and adding boron compound (c). Preparation of a catalyst system for olefin polymerization involves bringing complex (a) of a transition metal of groups 8 - 10 of the periodic table of the elements, aluminoxane (b) into contact with one another, and adding boron compound (c) of formula (R1>)a-B-(OR2>)b (I). R1>1-40C organic radical; R2>H or 1-40C organic radical bound via carbon atom; a,b : 1 or 2;and a+b : 3.
Patent DE-102004061523-A1 (DE)
Title: Verfahren zum Ermöglichen der Überwachung eines nicht-echtzeitfähigen Datenverbindungskontextes eines Teilnehmers eines zellularen Mobilfunknetzes
Inventor: BOEHME OLAF
IPC: H04L12/56
Filed: 2004-12-21
Abstract: Die Erfindung betrifft Verfahren zum Ermöglichen der Überwachung eines nicht-echtzeitfähigen Datenverbindungskontextes eines Teilnehmers eines zellularen Mobilfunknetzes. DOLLAR A Eine effiziente Überwachung von nicht-echtzeitfähigen Datenverbindungskontexten wird einfach und effizient ermöglicht durch ein Verfahren zum Ermöglichen der Überwachung (4) eines nicht-echtzeitfähigen Datenverbindungskontextes (10) eines Teilnehmers (1) eines zellularen Mobilfunknetzes (3, 4, 5, 6, 7), dadurch gekennzeichnet, dass ein Signalisierungskontext (11) des Teilnehmers (1) mit dem Mobilfunknetz (3 bis 6) als echtzeitfähiger Signalisierungskontext (11) aufgebaut wird.
Patent DE-102004062476-A1 (DE)
Inventor: PEERLINGS HENRICUS
IPC: C08G18/72
Filed: 2004-12-24
Abstract: Light-stable, sinterable, aliphatic, thermoplastic polyurethane (I) obtained from an isocyanate component (comprising 1,6-hexamethylendiisocyanate), a chain extending component, at least one component with specific molecular weight, a thermoplastic polyurethane, optionally catalysts and additive, thermoplastic polyurethane and light stabilizers, optionally additives and/or auxiliary materials and optionally chain cleavers. Light-stable, sinterable, aliphatic, thermoplastic polyurethane (I) obtained from an isocyanate component (A) (comprising 1,6-hexamethylene diisocyanate (A1) (100-75 mol%) and an aliphatic diisocyanate (A2) (0-25 mol%) or their mixtures (excluding 1,6-hexamethylene diisocyanate)) and a chain extending component (B) (comprising 100-75 mol% of a chain extender (B1) consisting of 1,2-ethane diol, 1,3-propane diol, 1,4-butane diol, 1,5-pentane diol, 1,6-hexanediol, 1,10-decanediol, 1,12-dodecanediol, diethylene glycol, dipropylene glycol, terephthalic acid-bis-ethylene glycol, terephthalic acid-bis-1,4-butandiol, 1,4-di (beta -hydroxyethyl)-hydroquinone, 1,4-di (beta -hydroxyethyl)-bisphenol A and 0-25 mol.% of a chain extender (B2) with a molecular weight of 60-400 or a mixture from chain extender, where (B1) is not identical with (B2) and the arithmetic sum of (A2) and (B2) is 2-28 mol.%; at least one component (C) with an average molecular weight of 450-10000 g/mol and in agent at least 1.8 to at most 3 zerevitinov active hydrogen atoms, where the ratio of the isocyanate group of (A) to the isocyanate reactive group of (B), (C) and optionally (H) is 0.9:1 to 1.1:1 in the presence of 1-30 wt.% of a thermoplastic polyurethane (D), one or several softeners with an average molecular weight of 200-10000 g/mol; optionally catalysts (E) and under additive of 0.1-10 wt.% of thermoplastic polyurethane, light stabilizers (F); optionally additives and/or auxiliary materials (G); and optionally chain cleavers.
Patent DE-102004062588-A1 (DE)
Title: Hochreaktive uretdiongruppenhaltige Polyurethanzusammensetzungen auf Basis von 1,4-Diisocyanatocyclohexylmethan
Inventor: SPYROU EMMANOUIL
IPC: C09J175/04
Filed: 2004-12-24
Abstract: Die Erfindung betrifft uretdiongruppenhaltige Polyurethanzusammensetzungen, auf Basis von 1,4-Diisocyanatocyclohexylmethan insbesondere für Polyurethan-Pulverlack- und Klebstoffzusammensetzungen, welche bei niedriger Temperatur härtbar sind, ein Verfahren zu ihrer Herstellung sowie ihre Verwendung.
Patent DE-102005003064-A1 (DE)
Title: Reactor for decalcifying water, removing pollutants, reducing turbidity and disinfection, comprises treatment chamber having water inlet and outlets for removing the water and sediments, heating devices, removable and fastened plates
Inventor: KARIMNIA MASSOUD
IPC: C02F1/20
Filed: 2005-01-22
Abstract: The plates (3, 4): are used for redirecting the water flow fastened in the reactor distanced from its base and side panel; has a drilling, through which a removable device (5) is arranged to the opening and closing of the drillings by cone and/or cylindrical ends; and has rotating openings in the boundary region. The upper end of the device is connected with non-fastened plate and has a mounting plate. The heating devices are arranged in distanced sections of the reactor. The inlet and/or outlet are arranged in upper and/or lower area of the reactor. The reactor consists of high-grade stainless steel or thermal resistant material and the inner wall of the reactor is roughened. An independent claim is also included for procedure of decalcifying water, removing pollutants, reducing turbidity and disinfection.
Patent DE-102005008442-A1 (DE)
Title: Cosmetic, pharmaceutical or dermatological preparation, useful as decorative agents, comprises copolymer waxes comprising alkyl structural units; and optionally acid structural units and e.g. styrol and alpha-methylstyrol
Inventor: HEINRICHS FRANZ-LEO
IPC: A61K8/81
Filed: 2005-02-24
Abstract: Cosmetic, pharmaceutical or dermatological preparation comprises copolymer waxes comprising one or more alkyl structural units (a1) or (a2); optionally one or more acid structural units (a3)); and optionally one or more structural units (a4) (styrol, 3-methylstyrol, 4-methylstyrol or alpha -methylstyrol). Cosmetic, pharmaceutical or dermatological preparation (I) comprises one or more copolymer waxes (a) comprising one or more structural units of formula (-CH 2-CHR-) (a1), (-CH 2-C(R 2>)(L)- (a2)); optionally one or more structural units of formula (-CH 2-C(R 1>)(COOH)- (a3)); and optionally one or more structural units (a4) (styrol, 3-methylstyrol, 4-methylstyrol or alpha -methylstyrol). R : 24-58C alkyl; R 1>, R 2>H or CH 3; L : -COOR 3>, -CONR 7>R 8>or -COO ->X +>; R 3>1-36C alkyl, 2-36C alkenyl (optionally alkoxylated, preferably ethylenoxy (EO), propylenoxy (PO), butylenoxy or EO/PO-groups), a group of formula (AO) x-H, glycidyl group, 2-10C-hydroxyalkyl, glycerin group, cyclic aromatic or non-aromatic group (preferably 5-8C (preferably 6C) cycloalkyl ring, where the ring containing carbon atoms and hetero atoms (preferably O and/or N), and both the carbon atoms and the nitrogen atoms are substituted with 1-36C alkyl, 1-36C alkoxy, 2-36C alkenyl, 2-36C alkenyloxy or acetyl group of formula (-COR 4>)), -(CR 5>R 6>) y-cycloalkyl, -(CR 5>R 6>) y-aryl or 8-18C perfluoroalkyl; either R 7>, R 8>H, 1-36C alkyl, 2-36C alkenyl (optionally alkoxylated, preferably ethylenoxy (EO), propylenoxy (PO), butylenoxy (BO) or EO/PO-groups), (2-10C)-hydroxyalkyl, -CH 2-CH 2-N(CH 3) 2, polyamine group, cyclic aromatic or non-aromatic group (preferably 5-8C (preferably 6) cycloalkyl ring, where the ring containing carbon atoms and hetero atoms (preferably O and/or N), and both the carbon atoms and the nitrogen atoms are substituted with 1-36C alkyl, 1-36C alkoxy, 2-36C alkenyl, 2-36C alkenyloxy or acetyl group of formula (-COR 9>)); or NR 7>R 8>5-7 membered aromatic or non-aromatic ring (where the rings next to the nitrogen atom contains preferably CH 2-groups); R 5>, R 6>H or 1-4C alkyl; y : 1-10; R 4>, R 9>1-22C alkyl; AO : ethoxy, propoxy or butoxy; x : 1-50; and X +>Li +>, Na +>, K +>, Mg 2>+>, Ca 2>+>, Al 3>+>, NH 4+>, monoalkylammonium-, dialkylammonium-, trialkylammonium- and/or tetraalkylammonium ion, where alkyl substitution of the ammonium ion is 1-22C alkyl or 2-10C hydroxyalkyl.
Patent DE-102005008486-A1 (DE)
Title: Insect protection roller blind for window or door has hollow spindle incorporating retraction brake
Inventor: KLOSE WERNER
IPC: E06B9/80
Filed: 2005-02-24
Abstract: A roller blind assembly for an open door or window provides protection from flying insects. The roller blind consists of a fixed cassette with an internal spindle (2) secured at each side and supporting a manually-deployed roller blind. During the retraction mode, the roller blind movement is delayed by a brake (5) incorporated within the hollow spindle.
Patent DE-102005008628-A1 (DE)
Title: Circular saw has saw blade rotatable by hydraulic drive circuit and a brake device which during braking separates pressure flow consumer from pressure line
Inventor: FREY STEFAN
IPC: B23D47/12
Filed: 2005-02-25
Abstract: the circular saw has a saw blade which can be rotated by a hydraulic drive circuit which has a brake mechanism (2). A hydraulic pump is mounted as pressure flow generator in the drive circuit and can be driven by an electric motor or power take off shaft. Independent claim describes brake mechanism for hydraulic drive where during braking the brake device separates the pressure flow consumer (8) from the pressure line (6) and switches a throttle (9) in series with the pressure flow consumer.
Patent DE-102005009393-A1 (DE)
Inventor: LANG MARTIN
IPC: C01B3/56
Filed: 2005-03-01
Abstract: Method of regenerating an adsorbent, for purifying a cryogenic gas dismantling unit of a synthesis gas plant for discharging synthesized gas, comprises obtaining a partial stream of a purified synthesis gas stream after the adsorption and before its cryogenic dismantling; and recycling the purified gas to give regenerated gas for regenerating an adsorbent, where the regenerated gas exhibits the same composition of the purified synthesis gas stream.
Patent DE-102005011517-A1 (DE)
Title: Transdermales therapeutisches System zur Verabreichung von Analgetika
Inventor: KUGELMANN HEINRICH
IPC: A61P25/04
Filed: 2005-03-10
Abstract: Die Erfindung betrifft ein transdermales therapeutisches System zur Verabreichung eines Analgetikums, umfassend DOLLAR A - eine Trägerschicht (T); DOLLAR A - eine Klebeschicht (K), welche unmittelbar an die Trägerschicht (T) angrenzt, auf einem druckempfindlichen Klebstoff basiert und das Analgetikum enthält; und DOLLAR A - ggf. eine abziehbare Schutzschicht (S); DOLLAR A wobei die Schichtdicke der Klebeschicht (K) weniger als 7,0 mum beträgt.
Patent DE-102005012292-A1 (DE)
Title: Emergency braking system for motor vehicle has inflatable cushion arranged under vehicle, which is equipped with spikes, claws etc., at road facing side
Inventor: HERRMANN GUENTER
IPC: B60T1/14
Filed: 2005-03-17
Abstract: Emergency braking system has an inflatable cushion (3) arranged under the vehicle, which is equipped with the spikes, claws (6) etc., at the road facing side. The cushion exists on the inflatable chamber and the designed like an inflatable boat whereby the cushion is composed of several individual cushions.
Patent DE-102005013011-A1 (DE)
Title: Sensor für eine physikalische Größe, welcher einen Winkelgeschwindigkeitssensor und einen Beschleunigungssensor aufweist
Inventor: AO KENICHI
IPC: G01P15/08
Filed: 2005-03-21
Abstract: Ein Sensor für eine physikalische Größe enthält ein Substrat (1), drei Winkelgeschwindigkeitssensoren (10, 20, 30), welche auf dem Substrat (1) angeordnet sind, und drei Beschleunigungssensoren (40, 50, 60), welche auf dem Substrat (1) angeordnet sind. Die drei Winkelgeschwindigkeitssensoren (10, 20, 30) sind zum Erfassen von drei Komponenten einer Winkelgeschwindigkeit um drei Achsen geeignet, von denen jeweils zwei sich senkrecht schneiden. Die drei Beschleunigungssensoren (40, 50, 60) sind zum Erfassen von drei Komponenten einer Beschleunigung in anderen drei Achsen geeignet, von denen jeweils sich zwei senkrecht schneiden. Die drei Achsen der Winkelgeschwindigkeitssensoren (10, 20, 30) schneiden sich an einem Punkt, und die anderen drei Achsen der Beschleunigungssensoren (40, 50, 60) schneiden sich an einem anderen Punkt.
Patent DE-102005016150-A1 (DE)
Title: Method for fitting visor to helmet via side mounting plates secured to helmet mounted plates with locking system and with slotted grips to vary tilt axis of visor
Inventor: ZAHN ALEXANDER
IPC: A42B3/22
Filed: 2005-04-07
Abstract: A method for fitting a visor (1) to a helmet has the ends of the visor fitted with mounting plates (11) which have a hinged fitting on mounting plates (3) secured to each side of the helmet. The mounting includes slot couplings (31, 32) to provide a variable pivot point for the visor in the raised position. This ensures that heavy duty visors are comfortably positioned in the raised position and can be rapidly deployed.
Patent DE-102005020352-A1 (DE)
Title: Chemical product`s production process controlling method for e.g. pipe system, involves providing variables by individual adjustment in production process and measuring variables in process, to generate horizon, with three scale arms
Inventor: TRINKAUS HANS L
IPC: G05B19/04
Filed: 2005-05-02
Abstract: The method involves executing a production process which represents two non identical and non linear dependant process variables. The variables are provided by individual adjustment in the production process and are measured in the production process, to generate a horizon (34), with scale arms (14-16). The scale arms represent the dimensions of a product. The horizon is lifted optically against inner and outer peripheries of arms. An independent claim is also included for a method for process data allocation for influencing an operating process.
Patent DE-102005021572-A1 (DE)
Title: Hydraulische Pumpe oder hydraulischer Motor mit einem Drehzahlsensor
Inventor: REIMER MARKUS
IPC: G01P3/44
Filed: 2005-05-10
Abstract: Die Erfindung betrifft eine hydraulische Pumpe oder hydraulischen Motor mit einer rotierenden, ortsfest in einem Gehäuse gelagerten Welle, an der ein Impulsgeber vorgesehen ist, und mit einem am Gehäuse befestigten Drehzahlsensor, der ein dem Impulsgeber zugeordnetes Sensorelement umfasst, wobei das Sensorelement außermittig und versetzt zur Einsteckachse des Drehzahlsensors angebracht ist.
Patent DE-102005021638-A1 (DE)
Title: Drehmaschine zur Bearbeitung von optischen Werkstücken
Inventor: SCHAEFER HOLGER
IPC: B24B41/02
Filed: 2005-05-06
Abstract: Eine Drehmaschine zur Bearbeitung von optischen Werkstücken, insbesondere von Brillengläsern, mit einer Fast-Tool-Anordnung (13) und einer Werkstückspindelanordnung (14) besitzt ein monolithisch aus Polymerbeton gegossenes Maschinengestell (10), an und in welchem alle Funktionsflächen, Funktionsräume und sonstige Aussparungen bei der Gießformung maßgenau gebildet sind. Das Maschinenoberteil (12) des einteilig gegossenen Maschinengestells (10) deckt zugleich nach Art einer Abdeckhaube die Fast-Tool-Anordnung (13) und die Werkstückspindelanordnung (14) und damit das Maschinenbett (11) ab. Das monolithische Maschinengestell (10) aus Polymerbeton ist von kompakten Abmessungen, hat ein sehr steifes schwingungsdämpfendes Maschinenbett (11) und besitzt im Vergleich zu den schnell bewegten Elementen der Fast-Tool-Anordnung (13) eine sehr große Masse mit hochliegendem Schwerpunkt, welche die Übertragung störender Schwingungen aus der Fast-Tool-Bewegung auf das Maschinenbett (11) und damit auf die Werkstückspindelanordnung (14) verhindert. Die so ausgebildete Drehmaschine ist preisgünstig herzustellen und ermöglicht die Erzeugung von beliebigen Brillenglasoptikflächen von höchster Formtreue und Flächengüte. Die erzielbare Optikflächenqualität ermöglicht direktes Polieren mittels flexibler oder anpassungsfähiger Polierwerkzeuge, wodurch erhebliche Einsparungen im Folgeprozeß erreicht werden. Bei entsprechender Ausrüstung mit einer Frässpindelanordnung können Randbearbeitungen der ...
Patent DE-102005028377-A1 (DE)
Title: Wood gas generator for use as fuel for an internal combustion engine has moving grate over oxidation zone
Inventor: JOOS BERND
IPC: C10J3/06
Filed: 2005-06-20
Abstract: A reactor with a cover, base and sidewalls (18) converts wood into wood gas for combustion. The reactor has an oxidation zone (10) and a reduction zone (11) for a portion of the oxidation gas products. The reduction zone has a movable grate (19) consisting of upper (30) and lower (31) components defining the position of a gas outlet (40, 9). The gas outflow (9) is horizontal. The upper and lower grates (30, 31) are movable and are separated by a moving intermediate grate. In an alternative embodiment the upper and lower grates are fixed and the intermediate grate is movable. The intermediate grate is e.g. conical or ring-shaped. The reactor contains an impeller wheel sensor (15) detecting the fuel-state within the reactor. The reactor oxidation and reduction zones are defined by a constriction (12) with a protective metal cap (24). Also claimed is a commensurate assembly generating wood gas for use as fuel in a process to generate electricity.
Patent DE-102005029050-A1 (DE)
Title: Mixer tap has swiveling control lever in cup-shaped mounting, lever having tubular sleeve which passes through mounting and fits over valve stem and sleeve being held in position by snap ring
Inventor: BROCK GUENTER UWE
IPC: F16K31/60
Filed: 2005-06-21
Abstract: The mixer tap has a swiveling control lever (11) in a cup-shaped mounting (10). The lever has a tubular sleeve (110) which passes through the mounting and fits over a valve stem (21). The sleeve is held in position by a snap ring (4).
Patent DE-102005029051-A1 (DE)
Title: Heat conductive device for heating floor, wall or ceiling of building has heat conductive layer, which is arranged in between the pipe and the part of the plate surface facing towards the pipe
Inventor: GUCKERT WERNER
IPC: F28F21/02
Filed: 2005-06-21
Abstract: Heat conductive device (2) has a support plate (10), which consists of a material containing non graphite expandate. A heat conductive layer (16) thinner in comparison to the thickness of the support plate is arranged in between the pipe and the part of the plate surface (12) facing towards the pipe (8). A heat conductive layer contains graphite expandate and stays in heat conductive connection with the pipes. An independent claim is also included for the graphite expandate.
Patent DE-102005038793-A1 (DE)
Title: Mechanical energy e.g. torque, producing device, has driving bodies defined as hollow pieces and have valve which reduces volume of bodies in open position and increases volume of bodies in closed position
IPC: F03B17/04
Filed: 2005-07-13
Abstract: The device has driving bodies which are connected with one another, where each body changes its volume during reversal of motion direction so that the volume of body which moves in gravity direction is less than that of the body moving in opposite direction. The bodies are defined as hollow pieces and have a valve which reduces the volume of the bodies in open position and increases the volume of the bodies in closed position.
Patent DE-102005039046-A1 (DE)
Title: Fastening device for e.g. retractable handle, has sliding unit brought by slidable adjustment in positive engaging manner and with bearing support and fastening section for stable bearing of grab handle on mounting section
Inventor: BOEHNER JAN
IPC: B60N3/02
Filed: 2005-08-18
Abstract: The device has a grab handle (1) including a handle body (2) and a bearing support (4) connected with the body. A fastening bolt (8) is connected with a body-lateral mounting section (5) and has a fastening section (10) passing through by an opening (6) of the mounting section in the direction of the grab handle which is to be fastened. A sliding unit (17) is brought by a slidable adjustment in a positive engaging manner and with the bearing support of the grab handle and simultaneously with the fastening section of the bolt for a stable bearing of the grab handle on the mounting section.
Patent DE-102005040155-A1 (DE)
Title: Verfahren zur Herstellung von enantiomerenangereicherten ß-Aminosäurederivaten
Inventor: BERKESSEL ALBRECHT
IPC: C07B53/00
Filed: 2005-08-25
Abstract: Die vorliegende Erfindung bezieht sich auf ein Verfahren zur organo-katalysierten kinetischen Racematspaltung von Verbindungen der allgemeinen Formel (II). DOLLAR F1 Durch Einwirkungen von katalytischen Mengen von enantiomerennangereicherten Verbindungen der allgemeinen Formel (Ia) oder (Ib) DOLLAR F2 können so einerseits enantiomerenangereicherte ggf. N-acylierte beta-Aminosäureester und andererseits enantiomerenangereicherte 4,5-Dihydro-oxazin-6-one (Oxazinone) gewonnen werden. Aus beiden leicht trennbaren Verbindungsklassen können durch einfache Hydrolyse die entsprechenden enantiomerenangereicherten beta-Aminosäuren gebildet werden.
Patent DE-102005040660-A1 (DE)
Title: Piston cylinder unit e.g. shock mount, for vehicle, has sleeve section lying at axial surface with its inner end, which is formed by locking ring, where sleeve section has constant cross section in direction from inner end to outer end
Inventor: HANDKE GUENTHER
IPC: F15B15/20
Filed: 2005-08-26
Abstract: The cylinder unit has a protective tube (9) including a tube body with a nominal diameter, and bottle-neck-shaped sleeve section, which is radially guided over an inner wall on to a mantel surface of a piston rod (3). The protective tube is fixed over an axial surface in the piston rod side. The sleeve section has an inner end pointing in the direction of the nominal diameter, where the sleeve section lies at the axial surface with its inner end, which is formed by a locking ring. The sleeve section has a constant cross section in the direction from the inner end to an outer end.