baber/WOPTO huggingface dataset:
Patent EP-0008454-A2 (EP)
Inventor: PILZ VOLKER DR
IPC: A61L2/02
Filed: 1979-08-20
Abstract: Die vorliegende Erfindung betrifft ein Verfahren zur Keimfreimachung von Feststoffen, insbesondere von pharmazeutischen Wirkstoffen, durch Sterilfiltration unter Einsatz von überkritischen Gasen.
Patent EP-0004765-A2 (EP)
Inventor: MARX MICHAEL
IPC: A61K31/58
Filed: 1979-04-02
Abstract: Corticosteroids of the formulae 
<CHEM>
 wherein:
 R<1><6> is methyl; and
 R<1><7> independently is hydrogen, or C2 to C6 linear or branched acyl or R<1><6> and OR<1><7> taken together are the radical (IV) 
<CHEM>
 where R<3> is hydrogen, C1 to C6 linear or branched alkyl, and R<4> is the same or different than R<3> as defined above or is C1 to C6 linear or branched alkoxy or R<3> and R<4> taken together with the carbon atom of said radical is C4 to C9 heterocyclic alkyl having one heterocyclic atom that is oxygen, R<2><1> independently is C1 to C6 linear or branched alkyl or C4 to C9 heterocyclic alkyl having one heterocyclic atom that is oxygen; or OR<1><7> and OR<2><1> taken together are the radical (IV) where R<3> is defined above and R<4> is C1 to C6 linear or branched alkoxy; Y is selected from the group methyl, halomethyl, and the radical -CH2OC(O)R where R is C2 to C6 linear or branched alkyl; Z independently is C1 to C7 linear or branched acyloxy, hydroxy or halo or Z and OR<1><7> taken together are the radical (IV) where R<3> and R<4> is defined above; are useful as anti-inflammatory agents. Compounds III can be prepared from compounds I through compounds II.
Patent EP-0017255-A2 (EP)
Inventor: SATO HIDEO
IPC: F02D21/08
Filed: 1980-04-09
Abstract: In an electronic control system for controlling an internal combustion engine by using a computer, a pressure signal processing unit for obtaining an engine intake manifold pressure and the atmospheric pressure as control parameters in a form suited to be converted into corresponding digital values for use in the processing by the computer. The processing unit includes a pressure gauge (58) for producing a voltage output signal corresponding to the measured pressure, and a V-F conversion circuit (60, 61, 62 or 78,80,82, 84, 86) for converting the voltage output signal into a frequency signal having a frequency which corresponds to the voltage of the voltage output signal.
Patent EP-0027286-A2 (EP)
Inventor: LUEDDERS WILMER LOUIS
IPC: A61K31/23
Filed: 1980-10-02
Abstract: Compositions for topical application of erythromycin and derivatives of erythromycin, comprising an erythromycin compound and a member selected from the group consisting of lauryl alcohol, diisopropyl sebacate, dibutyl sebacate, dioc- tyladipate, propylene glycol dipelargonate, ethyl laurate, butyl laurate, ethyl myristate, butyl myristate, isopropyl palmitate, oleyl alcohol, diethyl sebacate, dioctyl sebacate, dioctyl azelate, hexyl laurate, ethyl caprate, butyl stearate, isopropyl isostearate, 2-ethyl-hexyl pelargonate, butyl benzoate, benzyl benzoate, benzyl salicylate, and dibutyl phthalate, and mixtures thereof, are especially useful as a treatment for acne.
Patent EP-0065255-A2 (EP)
Inventor: SCHOENDORFER GEORG ING GRAD
IPC: E04G21/02
Filed: 1982-05-11
Abstract: Die Erfindung hat eine Vorrichtung zum Mischen und Spritzen von Nassbeton zum Gegenstand, die aus einer Vorrichtung zum Dosieren und pneumatischem Fördern von Trockenmischgut, einer Wirbelkammer und einer Nassspritzdüse besteht. In der Wirbelkammer ist eine schnell laufende Welle mit darauf sitzenden Flügeln zum Verwirbeln des durch einen Einlass pneumatisch geförderten Trockenmischgutes mit Wasser, flüssigen, staub- odsr faserförmigen Zuschlagstoffen angeordnet, die durch Einlässe im Mantel der Wirbelkammer zugeführt werden. An dem dem Einlass abgewandten Ende der Wirbelkammer ist ein Auslass angeordnet, durch den der in der Wirbelkammer hergestellt Nassbeton durch den pneumatischen Druck der Dosier- und Fördervorrichtung weiter durch einen Schlauch der Nassspritzdüse zugeführt und von dieser ausgebracht wird. Die Flügel der Welle sind vorzugsweise verstellbar angeordnet und die Wirbelkammer ist vorzugsweise zylindrisch ausgebildet. Die auslassseitige Stirnwand kann als Speichenrad ausgebildet sein, in dessen Nabe die Welle gelagert ist, die sich fliegend in einen trichterförmigen Auslass erstreckt. Auf der Welle sind bei dieser Ausführungsform auf dem in den Trichter hineinragenden Teil vorzugsweise ein oder mehrere konische Räumflügel angeordnet, um Verstopfungen des Trichters zu verhindern.
Patent EP-0070515-A2 (EP)
Inventor: ALBRECHT HELMUT DR DIPL-ING
IPC: H01L21/205
Filed: 1982-07-14
Abstract: To improve the brightness of a light-emitting diode having a n-type zone (5) doped with sulphur, tellurium and/or selenium and an adjacent p-type zone (6), the donor background doping in the p-type zone (6) being  at least 2 times lower  than the donor doping of the n-type zone (5). <IMAGE>
Patent EP-0075770-A2 (EP)
Inventor: KOLBE JOACHIM DR
IPC: D06M101/16
Filed: 1982-09-11
Abstract: Textilbehandlungsmittel, die A. 50-80 Gew.-% acylierte Alkanolamine aus gesättigten oder ungesättigten Fettsäuren mit 12-22 C-Atomen und Alkanolaminen die 1 oder 2 Stickstoffatome, 1 - 3 Hydroxylgruppen und 2 - 6 C-Atome enthalten, im Molverhältnis 1:1 bis 3:1, B. 10-30 Gew.-% wasserlösliche, quaternäre Ammoniumsalze der allgemeinen Formel <IMAGE> worin R1 einen Alkyl- oder Alkenylrest mit 14 - 25 C-Atomen, der durch eine Amid- oder Estergruppe unterbrochen ist, R2 einen Rest wie R1 oder einen Alkylrest mit 1-4 C-Atomen, R3 einen Alkylrest mit 1 - 4 C-Atomen, einen Hydroxyethyl- oder Hydroxypropylrest, R4 einen Alkylrest mit 1 - 4 C-Atomen, einen Hydroxyethyl-, Hydroypropyl- oder Benzylrest und X<(-)> ein Anion bedeuten, C. 2-20 Gew.-% Fettsäureester aus gesättigten oder ungesättigten Fettsäuren mit 12-22 C-Atomen oder Dicarbonsäuren mit 4-10 C-Atomen und ein- bis vierwertigen Alkoholen mit 3-20 C-Atomen, D. 0-20 Gew.-% Ethylenoxid-Addukte von Fettsäuren mit 12-22 C-Atomen oder von Fettalkoholen mit 8-18 C-Atomen oder von Alkyl- bzw. Dialkylaminen mit 12-36 C-Atomen oder von Alkylphenolen mit 10-24 C-Atomen mit 3 bis 50 mol Ethylenoxid und E. 0.25 Gew.-% Diorganopolysiloxane mit einer Viskosität von 1000 bis 100 000 cSt. enthalten, sowie Verfahren zum Ausrüsten von natürlichen und synthetischen Textilmaterialien, dadurch gekennzeichnet, daß sie mit diesen Textilbehandlungsmitteln behandelt werden.
Patent EP-0082273-A2 (EP)
Inventor: RAQUET ERWIN DR RER NAT
IPC: B60B17/00
Filed: 1982-10-27
Abstract: The invention consists of a wheel disc (3), a wheel tyre (1) and a plurality of radially prestressed, elastic hard rubber plates (8) which are arranged distributed in the circumferential direction in an annular gap (7) between the wheel disc (3) and the wheel tyre (1). In such a rail wheel, the sound level peaks in the frequency spectrum of the noises when going round bends and the pitching noises are reduced by arranging packing bodies (11) in the circumferential direction between the hard rubber plates (8), which bodies have, in the circumferential direction, a small deformation resistance with respect to that of the prestressed hard rubber plate (8). <IMAGE>
Patent EP-0081339-A2 (EP)
Inventor: GILMOUR ALEXANDER
IPC: H01M50/103
Filed: 1982-12-01
Abstract: A method of sealing together conductive parts (4, 6) of an electrochemical cell while retaining the said parts (4, 6) electrically insulated from each other, which method comprises interposing between the parts to be sealed a sealing material (16) characterised in that the sealing material comprises a thermoplastic bonding material which will flow at the temperature which is to be used for heat-sealing the said parts together and an interlayer of an insulating material having a melting point higher than the said temperature, and in that the parts to be sealed together are heat-sealed by applying heat and pressure to the parts to be sealed thereby to soften the bonding material so that it adheres to the said parts to form the required seal without affecting the insulating material.
Patent EP-0084285-A2 (EP)
Title: Procédé de traitement des eaux résiduaires contenant des amines aromatiques
Inventor: MANSEL JEAN EUGENE
IPC: C02F9/00
Filed: 1982-12-29
Abstract: Procédé de destruction des amines primaires aromatiques dans les eaux résiduaires, caractérisé en ce que l'on traite, à une température comprise entre 40°C et 90°C, pendant une durée supérieure à 5 minutes, les eaux résiduaires contenant lesdites amines par un mélange d'acide sulfurique et d'acide nitrique ou par un mélange d'une solution d'un nitrite alcalin ou de nitrite d'ammonium et d'un acide, le pH final du milieu réactionnel étant inférieur à 3.
Patent EP-0069720-A2 (EP)
Inventor: BLOMDAHL SVEN GORAN RUNE
IPC: G01D5/14
Filed: 1982-07-01
Abstract: An apparatus for sensing the distance between an object (3,4) of electrically conductive material and a reference point has an electrode (12h, 12v), the tip of which constitutes the said reference point. The electrode is connected via a supply line (15h, 15v) to a high voltage source (14) adapted to generate high voltage pulses to provide an arc (16h, 16v) between said electrode tip and said object (3, 4). The apparatus also has an air-cored measuring coil (17h, 17v) disposed around said supply line (15h, 15v) for sensing the electric field about said supply line and transmitting to a measuring signal sensing circuit (18h-25h, 18v-25v) a measuring signal proportional to said electric field. The measuring signal sensing circuit preferably comprises a comparator unit adapted to compare the measuring signal with a signal corresponding to a predetermined distance between the object (3, 4) and the electrode tip.
Patent EP-0103099-A2 (EP)
Inventor: YUASA HITOSHI
IPC: C07C409/38
Filed: 1983-07-11
Abstract: Novel peroxide compounds and the use thereof. In particular, the present invention concerns β-hydroxycyclopentylperoxide compounds of the general formula:wherein R, represents hydrogen or an organic residue of 1 to 9 carbon atoms. These novel peroxide compounds are useful as an intermediate in the production of glutaraldehydes.
Patent EP-0101077-A2 (EP)
Inventor: RIHA GERD DR
IPC: H03H9/02
Filed: 1983-08-11
Abstract: Oberflächenwellen-Bauelement (Figure 1) mit reflektierten Wellen (12, 13), bei dem wenigstens eine der Seitenkanten (16, 17) des Substratkörpers (2) in einem von der Parallelität zu der vom Eingangswandler (4) ausgesandten Welle (11) abweichenden Winkel δ ausgerichtet ist, dessen Maß von der Anordnung des Ausgangswandlers (5) abhängt.
Patent EP-0109583-A2 (EP)
Inventor: ENSLEY BURT D
IPC: C12N15/00
Filed: 1983-10-26
Abstract: Microbial synthesis of indigo dyestuff in indole-free media is disclosed. Indigo production is preferably accomplished by genetic transformation of selected host cells having the capacity to produce and accumulate indole (either as a result of endogenous genomic capacity or genetic transformation) to incorporate the capacity for synthesis of an aromatic dioxygenase enzyme. Growth of transformed cells under suitable conditions facilitates aromatic dioxygenase enzyme catalyzed oxidative transformation of cellular indole, with consequent formation of indigo from the oxidized reaction products. In a highly preferred embodiment; E coli cells having endogenous indole production capacity are transformed with a DNA expression vector comprising the structural gene for naphthalene dioxygenase, resulting in the microbial synthesis of isolatable quantities of indigo.
Patent EP-0092329-A2 (EP)
Inventor: FEINMANN BERNARD PAUL PHILIPPE
IPC: A61K6/896
Filed: 1983-03-30
Abstract: An elastomeric foam composition is useful in dentistry for separating the gingiva from the adjacent teeth, for cleaning, as a pressure pack and wound dressing and as a cushion between dental appliances and the gums of a dental patient. The composition is made from a pastelike system of components which expands at least about 150% to produce a uniformly fine-grained foam composition having a resistance to compression such that a force of at least about 50g per square cm. is required to result in 10% deflection. In a preferred embodiment, the elastomeric foam composition is formed from a system of components which includes silicone fluids, siliceous fillers, crosslinkers, hydrogen sources and a catalyst, all present in amounts which provide a paste-like consistency before foaming and resistance to compression after foaming such that 80g. per square cm. is required to produce a 10% deflection.
Patent EP-0117952-A2 (EP)
Inventor: MIER MARJORY ANNE
IPC: B29C53/00
Filed: 1983-12-20
Abstract: A container having at least one heat-sealed juncture is formed from foam polymer sheet material. The foam polymer sheet material includes an area of crushed and compressed cellular structure directly adjacent the heat-sealed portion. The width of the crushed and compressed area is at least as great as the thickness of uncompressed foam in the layer.
Patent EP-0143415-A2 (EP)
Inventor: BENSON VOLKER
IPC: B30B11/22
Filed: 1984-11-17
Abstract: 1. A pelletizing apparatus in which press rolls (11) disposed freely rotatable on a runner head (13) turn by the rotation of the runner head (13) relative to a die-plate (10) on the planar, punched die-plate (10), characterized in that the pelletizing apparatus is of two-stage design, in that two die-plates (10, 20) with the press rolls (11, 21) running thereon are disposed one above the other and in that the upper die-plate (20) has great passage holes (22) for loose strands of pellets of precrushed material, and that the lower die-plate (10) has smaller passage holes (12) which correspond to the dimensions and the compression of the pellets to be produced.
Patent EP-0144863-A2 (EP)
Inventor: SCHMIDT MATTHIAS
IPC: A01K49/00
Filed: 1984-11-22
Abstract: A plastics comb comprising a center wall and cell walls with normal height at both sides of the center wall is made-up of seveal parts. An injection-moulded center wall and injection moulded cell walls, which are produced separately are connected with each other. The diameter of the cell chamber at the bottom of the cell is larger than that of the cell opening. For breeding queens corresponding combs are provided with a center wall and with cell walls at one side thereof, which are removable from the center wall. The individual cells have cell bottoms, which are entirely or partly exchangeable, for example, as a locking element separate from the cell bottom.
Patent EP-0147628-A2 (EP)
Inventor: KENNEY JAMES W
IPC: A61M1/00
Filed: 1984-11-23
Abstract: A disposable capillary tube device has a support member (4) to which a capillary tube (6) is secured with one end of the tube (6) extending beyond the support member (4) for the pickup of a liquid. A plunger (32) is releasably mounted for axial movement on the support member (4) with space for the passage of air out of the capillary tube (6) as it picks up liquid. The plunger (32) is mounted on the axis of the capillary tube (6) for passage through the capillary tube (6) to expel liquid from the capillary tube (6).
Patent EP-0148506-A2 (EP)
Inventor: TANAKA MINORU
IPC: H05K3/38
Filed: 1984-12-27
Abstract: Resistors (4; 4a, 4b) are formed on one surface of a board (1; 1a, 1b, 1c) having through hole conductors (2; 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2h', 7aa) arranged like a lattice, an electrode (6) is further formed on the surface of these resistors, and the electrodes over the through hole conductors are coaxially removed, thereby forming substantially disk-like resistors (4a, 4b).
Patent EP-0120581-A2 (EP)
Inventor: TEUSCHER LEON A
IPC: G03G5/043
Filed: 1984-02-15
Abstract: A layered photoresponsive device comprising in the order stated a substrate (10); a transmissive semi-conductive layer (12) selected from the group consisting of indium-tin oxide, cadmium tin oxide, tin oxide, titanium oxides, titanium nitrides, titanium silicides, and mixtures thereof; a photogenerating layer (14) comprising an inorganic photoconductive composition or an organic photoconductive composition, dispersed in a resinous binder; and a charge carrier transport layer (16) comprising a combination of a resinous binder having dispersed therein small molecules of an electrically active material, the combination of which is substantially non-absorbing to visible light and allows the injection of photogenerating holes from the charge photogenerating layer in contact therewith, the electrically active material being of the following formula: 
<CHEM>
 wherein X is selected from the group consisting of ortho CH3, meta CH3, para CH3, ortho C1, and para C1, as well as the incorporation of such devices in electrostatographic imaging systems.
Patent EP-0125090-A2 (EP)
Inventor: BRITTAIN DAVID ROBERT
IPC: C07D209/38
Filed: 1984-05-01
Abstract: The invention concerns 1'-(4-bromo -2-fluorobenryl)-7'-chloro-spiro [imidazolidine -4,3'- indoline] -2,2',5- trione in racemic or dextrorotatory form; pharmaceutical compositions thereof for use in the treatment or prophylaxis of certain complications of diabetes;and processes for its manufacture.
Patent EP-0134097-A2 (EP)
Inventor: BERMINGHAM HUBERT PATRICK MARY
IPC: E04C1/40
Filed: 1984-07-25
Abstract: A lightweight building element is moulded in the form of a three or four sided shell defining an interior space for receiving a filler material. The element is trapezoidal in at least one elevation so as to be stackable with a pluralityof identical elements for ease of transportation. The method of the invention involves laying the elements in courses and then filling the elements from above with a loose relatively heavy filler material such as gravel or sand to form a solid structure.
Patent EP-0146339-A2 (EP)
Inventor: KROPIELNICKI JERZY JACEK
IPC: H01Q1/12
Filed: 1984-12-12
Abstract: An electrically heatable window of a motor vehicle can be used as an efficient VHF receiving aerial. isolating circuitry, which may include one or more bifilar coils (L1, L2) is used to separate RF signals from the heater D.C. power supply circuit, and matching circuitry is used to match the window heating element to an aerial input impedance of an aerial feeder circuit of the radio receiver. In one embodiment, the matching circuitry (L3, C5) is such as to give series resonance near the centre of the VHF band. in a second embodiment the matching circuitry (L1, Ca) is such as to give parallel resonance near the centre of the VHF band. In a third embodimentthe matching circuitry (L1, C1, L3, C2) is such as to give resonance in two passbands near the centre of the VHF band. The third embodiment can be used for transmitting as well as receiving.
Patent EP-0150029-A2 (EP)
Inventor: CULTER ROBERT GORDON
IPC: G06T1/00
Filed: 1985-01-14
Abstract: A document scanner compensates for mechanical misalignment between a document and a photosensitive array by storing pixel information from the array and timing the output of such information in accordance with stored offset values which represent the mechanical misalignment for successive relative positions of the document and of the array.
Patent EP-0152827-A2 (EP)
Inventor: OGAWA TETSU
IPC: G02F1/1335
Filed: 1985-01-30
Abstract: in a color liquid crystal display apparatus of twisted nematic type, thicknesses of the liquid crystal layer is made different for different color picture elements, thereby optical rotatory dispersion which has been the cause of undesirable light transmittance at 0 voltage input is minimized, so that contrast, range of reproduced color, view angle dependency, etc. are improved, and a color liquid crystal display apparatus capable of displaying splended picture quality is provided.
Patent EP-0153709-A2 (EP)
Inventor: INOUE SHIGEHARU
IPC: C07D213/64
Filed: 1985-02-22
Abstract: The invention relates to novel cephalosporin compounds and pharmacologically acceptable salts thereof having strong antibacterial activity against gram-positiv organisms as well as gram-negative organisms. These compounds correspond to the formula
Patent EP-0153751-A2 (EP)
Inventor: SAITO SUZUO C O PATENT DIVISIO
IPC: H02M5/45
Filed: 1985-02-28
Abstract: A power converter for starting an AC induction motor includes a frequency detector (41) which compares the frequency of an AC output of the converter with a predetermined frequency and generates a detection signal (SX) if the AC output frequency is lower than the predetermined frequency; a current controller (18, 26-29, 42-45) which controls the power converter such that an AC output current (lac) supplied to the motor (16) is determined in accordance with a given current reference (lref = S2) if the detection signal (SX) is generated; and a voltage controller (17, 18, 21-29, 31, 32, 43, 45) which controls the power converter so that an AC output voltage (Vac) applied to the motor (16) is regulated in accordance with a given voltage reference (Eref = E22) if the detection signal (SX) disappears.
Patent EP-0156204-A2 (EP)
Inventor: ROKUGAWA KYUJI C O PATENT DIVI
IPC: G01N35/08
Filed: 1985-03-05
Abstract: An enzyme is immobilized to a capillary column (16), and a solution which contains a chemical substance and a luminescent substance flows through the column (16). A plurality of optical fibres (20) are arranged along the longitudinal direction of the column (16), and the luminescence in the column is introduced to a photodiode array (22) through the fibers. The distribution of the luminescent intensity along the longitudinal direction of the column is detected by the photodiode array (22). Thus, the rate of quantity increase of the product produced by the enzyme reaction can be measured while the solution is flowing through the column, thereby producing the enzyme activity by the end assay and the rate assay.
Patent EP-0159674-A2 (EP)
Inventor: HAGMANN WILLIAM K
IPC: C07D487/04
Filed: 1985-04-19
Abstract: Racemic mixture of derivatives of 5-(1-methyl-5-methyl- thiopyrrol - 2 - oyl) -1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-2-carboxylic acid and analogs were resolved into pure I-or d-isomers via concomitant isomerization and functional crystallization.
Patent EP-0160882-A2 (EP)
Inventor: FREI MATTHIAS
IPC: B23K1/16
Filed: 1985-04-22
Abstract: Einrichtung zum Auftragen einer Schutzschicht auf die Schweiss- oder Lötnaht von Dosenrümpfen mit einer zum Auftragen einer Ueberzugsmasse innerhalb eines die Naht überdeckenden Bereiches auf der Innenseite (15) des Dosenrumpfes dienenden Auftragsrolle, die in einem mittleren Bereich (9) ihres Mittelteiles (6) mit einer unter 60% der Breite des Mittelteiles (6) liegenden Bereichsbreite mindestens eine Vertiefung (10) aufweist und dessen periphere Mantellinie (5) in diesem mittleren Bereich (9) mindestens einen Knickpunkt und/oder mindestens zwei Wendepunkte hat. Die Einrichtung ermöglicht es erstmalig, optimale Schichtdicken des Ueberzuges über der Schweissozw. Lötnaht zu erzielen, die weder zu gering für die bei Langzeitlagerungen von aggresiven Flüssigkeiten auftretenden Beanspruchungen noch zu gross für die Reissfestigkeitsbeanspruchung des Ueberzuges sind, die beim umbördeln der Ränder der Dosenrümpfe auftritt. Aufgrund der Ausbildung der Auftragsrolle ergibt sich ein optimales Profil der aufgetragenen Ueberzugsschicht mit der grössten Schichtdicke unmittelbar über der Schweiss- bzw. Lötnaht, wie es mit keiner der bisher bekannten Auftragsrollen erreicht werden konnte.
Patent EP-0173862-A2 (EP)
Inventor: KUMETH SIEGMUND
IPC: B21K1/54
Filed: 1985-08-01
Abstract: Die Erfindung bezieht sich auf eine Vorrichtung zum Einbringen von Kerben in Werkstücke, insbesondere in zylindrische Werkstücke. Diese ist gekennzeichnet durch einen eine Aufnahme für das Werkstück aufweisenden ersten Werkzeugteil durch wenigstens einen an diesem ersten Werkzeugteil schwenkbar gehalterten Hebel der an seiner der Aufnahme zugewendeten Seite wenigstens ein mit einer Schneide versehenes Werkzeug aufweist und an einer der Schneide abgewendeten Seite eine erste Anlage- oder Abstützfläche bildet, gegen welche ein Druckbolzen mit einem Ende anliegt, sowie durch einem am ersten Werkzeugteils um eine die Aufnahme einschließende Achse schwenkbar angeordneten zweiten Werkzeugteil der an seiner der Aufnahme zugewendeten Seite eine zweite Anlage-und Abstützfläche für den Druckbolzen bildet.