baber/WOPTO huggingface dataset:
Patent DE-4207318-A1 (DE)
Title: Acid-resistant laboratory metering pump - has two piston-type rotary valve pump units arranged in parallel and phase-displaced by 180 deg.
Inventor: ZIPPERER MANFRED
IPC: F04B7/06
Filed: 1992-03-08
Abstract: The pump has two piston-type rotary valve pump units of the same construction arranged in parallel. They are coupled to operate in a manner phase-displaced about 180 deg.. The pump units have common shortened suction periods and extended discharge periods. The sum of the delivered part quantities from both pump units in a given period of time is of uniform size, to give a pulse-free delivery flow. USE/ADVANTAGE - For use in chemical, physics or medical laboratories. Robust, largely acid-resistant pump capable of continuously delivering very small quantities in timed sequences.
Patent DE-4210712-A1 (DE)
Inventor: ECHARREN-UZABEL RICARDO
IPC: F01B13/06
Filed: 1992-03-27
Abstract: A rotor 1 rotatably mounted in a housing 9 has a drive or driven shaft 2 projecting from the housing. A circumferential array of radial cylinders 3 contain free pistons 5. The pistons slidably engage an elliptical peripheral track 8 secured to the housing. Each piston 5 defines a variable-volume chamber 3a at the radially inner end of its associated cylinder 3, where the cylinder is provided with a port 4 communicating with inlet and exhaust ports 15, (16, Fig. 1) and associated channels in a central tube 14 fixed to the housing 9. <IMAGE>
Patent DE-4211062-A1 (DE)
Inventor: MEICHSNER GEORG DR
IPC: C08G81/02
Filed: 1992-04-03
Abstract: Polyester resins on the basis of hydroxyl groups-containing prepolymers from olefinically unsaturated monomers are prepared by (1) polymerizing a mixture of (a) 60 to 90% by weight styrol or a styrol derivate having the general formula (I), in which R<1>, R<2> and R<3> stand for hydrogen, methyl or ethyl and n equals 1 or 2, or a C2-C10-olefin with one or two conjugated double bonds, or a mixture thereof; (b) 0 to 40% by weight C1-C12-alkylester of acrylic or methacrylic acid, acryl- or methacryl-nitril, acryl-or methacrylamide, which may be substituted at the amide-nitrogen by one or two C1-C4-alkyl groups, maleic anhydride or maleic acid imide, which may be substituted at the imide-nitrogen by a C1-C4-alkyl group, or a mixture thereof; (c) 0 to 20% by weight one or several hydroxyl group-containing acrylic or methacrylic acid derivates; and (d) 0 to 2% by weight one or several olefinically poly-unsaturated monomers; to obtain a prepolymer A, into which the hydroxyl groups are inserted by means of hydroxyl groups-containing regulators when the monomer component (c) is missing and by a mixture of (A) 5 to (95% by weight prepolymer A; (B) 0 to 95% by weight another low molecular or high molecular polyol, a polyester or a polyamid, or a mixture thereof; and (C) 5 to 70% by weight one or several aliphatic or aromatic dicarboxylic acids C or their C1-C4-alkylesters. Carboxylic acids or their C1-C4-alkylesters having more than two carboxyl groups per molecule, monocarboxylic acids or their C1-C4 alkylesters, hydroxymonocarboxylic acids or their C1-C4-alkylesters or mixtures thereof, as well as waxes may also be present during polycondensation. These polyester resins are suitable as binders for electrophotographic toners and for the receiving layers in the thermodiffusion printing method.
Patent DE-4213177-A1 (DE)
Title: Air cushion track for conveying persons or goods using vehicles and travel means - has air cushion arranged between vehicle and travel track holding the vehicle in suspension and air cushion also guides vehicle laterally
Inventor: BACH JOACHIM DIPL PHYS
IPC: E01B25/00
Filed: 1992-04-22
Abstract: The vehicle contains a base frame for taking load, which with the cladding surfaces forms the vehicle body. The vehicle has at least two stilts (1) with slide feet (2) for passing the load to the travel track from the base frame. The travel track consists of two rails (3), which are positioned under the vehicle base frame. Flow resistances (4) are fitted on the slide plates (5) of the rail and/or on the slide plates of the slide feet, as well as slip bodies at the foot and rails for possible accident. USE/ADVANTAGE - Universal mass traffic means developed. It is homogeneous in concept, giving shortest travel times, good comfort and consumes little power.
Patent DE-4216776-A1 (DE)
Title: Detoxification of halogenated aromatic hydrocarbon cpds. using oxidant - e.g. ozone, hydrogen per:oxide or UV light causing dehalogenation and partial decomposition, e.g. for detoxifying contaminated soil or waste
Inventor: EFFELSBERG HEINZ
IPC: A62D3/176
Filed: 1992-05-21
Abstract: Detoxification of halogenated aromatic hydrocarbons (I), e.g. PCBs, chlorinated benzenes, dioxins and furans, comprises dehalogenation and partial decomposition by treatment with oxidants (II) forming free radicals. (II) is pref. O3, H2O2 and/or UV light. (I) are extracted from the material (III) to be treated with a solvent, e.g. hexane or toluene, then the extract is treated with H2O2 and irradiated with UV lamps for 1 min to 2 hrs. The solvent is removed by rectification and heating the residue to 150 deg. C, then the prod. is incinerated. Extn. is carried out in appts. suitable for combustible gases by circulating the solvent soln. to give a fluidised bed, removing a side stream, distilling and recycling the condensate as fresh solvent and exposing the residue to UV light. USE/ADVANTAGE - The process is useful for the detoxification of e.g. soil and waste contaminated with (I). It is effective, economical and simple and gives relatively favourable decomposition prods.
Patent DE-4221609-A1 (DE)
Inventor: MUTSCHLER OTTO
IPC: B43K5/00
Filed: 1992-07-01
Abstract: A writing unit for a cartridge fountain pen with a nib (1), a grip (2), an ink feed (4) with a spigot (3) and possibly a sleeve (5) accepting the ink feed (4), in which the ink feed (4) has lamellar collection chambers (6) and a longitudinal capillary channel (7) runs over the entire length of the ink feed (4) on the side turned towards the nib (1), is constructed to prevent ink from dripping out of the slot of the nib (1), especially when temperatures fluctuate considerably and with an ink feed (4) designed for broad script, in such a way that the longitudinal capillary channel (7) is, at least in sections, divided into two partial channels (11, 12) by a wall (10) extending longitudinally in it.
Patent DE-4222058-A1 (DE)
Title: Cushion packing paper bag - is filled with short cotton fibres, typically formed by cutting or grinding.
Inventor: ZINKE ERICH
IPC: B65D81/05
Filed: 1992-07-04
Abstract: The bag (1) may be filled with short cotton fibres which can form a free-flowing material. The fibres can be formed by cutting or grinding, and the bag (1) can contain Alpaca fibres. The bag may be produced in a number of sections of different thicknesses separated by welded or glued seams, and it can form an endless hose. USE/ADVANTAGE - Cushion packing paper bag is of low cost and made entirely of organic material which rapidly rots down for composting.
Patent DE-4222168-A1 (DE)
Title: Fatty acid lactone prepn. under mild conditions - by heating unsatd. acid ester with tin halide acceptor, used e.g. as perfume, aroma, pheromone or intermediate
Inventor: BEHR ARNO DR
IPC: C07D315/00
Filed: 1992-07-06
Abstract: Prepn. of higher fatty acid gamma- and delta-lactones of formula (I) comprises heating an unsatd. higher fatty acid lower alkyl ester of formula R2COOR3 (II) in presence of a tin halide and a methylene acceptor: R1 = 10-17C aliphatic hydrocarbyl; n = 1 or 2; R2CO = 16-22C aliphatic acyl contg. 1-3 double bonds; R3 = 1-4C alkyl. USE/ADVANTAGE - (I) are perfumes or aromas (or their intermediates), pheromones or taste improving agents for margarine. (I) (generally as a mixt. of 5- and 6-membered lactones with the 5-membered cpd. predominating) are obtd. under mild conditions, without using corrosive strong acids or multiple stages.
Patent DE-4227553-A1 (DE)
Title: Height adjustable support esp. for chair seat - has foot, upright, guide surface, support in bottom of upright.
Inventor: KNOPP AXEL DIPL ING
IPC: A47C3/30
Filed: 1992-08-20
Abstract: The guide surface (34c) and the support (28) form one piece with the tubular upright (16) which, with the foot (14) is made of plastics. The upright has an outer casing (16a) the inside of which is the guide surface (34c) made up of elastic guide elements (36) produced in one piece with the outer curved casing. The foot comprises cantilevered arms (20) extending outwards along the plane contg. the upright and joined by reinforcement ridges (34a, b) to the outside of the tubular upright. The height adjustment element comprises a cylinder piston unit (18), piston rod (24) touching the uprights support. USE/ADVANTAGE - Guide surface and support for chair seat are formed on upright which is made of plastics in one piece with foot.
Patent DE-4229914-A1 (DE)
Title: Racemic alpha- and gamma-lipoic acid prepn. - from cyclohexanone and vinyl alkyl ether in good yield by economical multi-stage process
Inventor: BALKENHOHL FRIEDHELM DR
IPC: C07D313/04
Filed: 1992-09-08
Abstract: Prepn. of racemic gamma-liponic acid of formula (Ia) and racemic alpha-liponic acid of formula (Ib) comprises: (a) reacting cyclohexanone of formula (II) with a vinyl alkyl ether of formula (III) in the presence of a radical initiator; (b) converting the resulting 2-alkoxyethyl-cyclohexanone of formula (IV) by Baeyer-Villiger oxidn. using an organic peracid or salt or an inorganic peroxo cpd. into an 8-alkoxy-6-hydroxy-octanoic acid lactone of formula (V) or a mixt. of this lactone with the parent acid, of formula (VI) and (c) converting the prod. with thiourea in the presence of HBr or Hl into (Ia) and isolated this: and, where (Ib) is required, (d) oxidising the crude (Ia) with air in the presence of a ferric catalyst; (e) continuously distilling the crude (IB) obtd. in a film evaporator under 0.02-0.2 mbar press. at 60-200 deg.C; and (f) isolating (Ib) by crystallisation R1 = 1-3C alkyl. Pref. step a) is carried out using di-tert-butyl peroxide as the radical initiator. Sodium metaperborate or permaleic acid (prepd. in situ.) is used as the reagent in step B). Ferric chloride is the catalyst used in step d). Step e) is carried out under 0.05-0.1 bar pressure and at 130-160 deg.C (Ib) is crystallised from diisopropyl ether or hexane/ethyl acetate in step f). USE/ADVANTAGE - (Ib) is useful in treating liver disease, neuropathies, esp. diabetic polyneuropathy, HIV-1 and HTLV IIIB. Use of (Ia) is described in DE4035456. Compared with the processes described in DE3512911, the method is simpler and uses cheaper starting materials and milder conditions. Overall yield is 35%, compared with 10% using cyclohexanone and 2-ethoxyethyl bromide and 19% using cyclohexanone according to JACS 79 (1957), pp 3503-3505 or US2993056. In an example, a) Cyclohexanone (II) (2940 g) is treated at reflux with a soln. of di-tert.butyl peroxide (87.6 g) in ethyl vinyl ether (III) (216 g). Refluxing, cooling, removal of volatiles and distillation of the residue gives 2-(2-ethoxyethyl)-cyclohexanone (IV) (350 g; 69% yield); b.pt. 60-65 deg.C/0.5mbar. b) (IV) (680 g) was added while stirring and maintaining gentle boiling to a suspension of m-chloroperbenzoic acid (1506 g) in CH2Cl2 (2 l). The mixt. is stirred at 40 deg.C, cooled, treated with satd. Na2CO3 soln. (3 l) and the sepd. organic phase is washed (Na2CO3), dried (MgSO4) and concentrated to give lactone (V) (640 g; 86% yield).
Patent DE-4230750-A1 (DE)
Title: Supercharged IC engine with exhaust turbine - has hollow shaft with slide plates and air precompressor outer ring
Inventor: KAISER HELMUT
IPC: F02C5/04
Filed: 1992-09-14
Abstract: The combined exhaust gas turbo-pre-compressor has a tubular central shaft (17), with its slide plates on the outer ring of the centrifugal motor which rotates and thus reduces the pressure of the gases on the inside (2), and on the outside (1) compresses air. The liq. fuel always comes to explode through a rotary incandescent zone (18) in the ball flap motor chamber. The occurring centrifugal forces are increased via flexible steel rope, guide roller (21),and movable counterweight(22). USE/ADVANTAGE - For a centrifugal IC engine,with air compression for increased performance.
Patent DE-4232124-A1 (DE)
Title: Motor vehicle bench seat incorporating child restraint - comprises air-bag inflated to provide infant seat resting on control arm rest
Inventor: FEICHTIGER DIETER DIPL ING
IPC: B60N2/30
Filed: 1992-09-25
Abstract: The vehicle bench seat has an incorporated child restraint provided by an inflatable air-bag (3) which is inflated by a pneumatic pump incorporated in the vehicle to form an infant seat which rests on the central arm rest (2) when this is folded down. Pref. the pneumatic pump is coupled to a control for selectively inflating and evacuating the air bag, the pressure within the latter being monitored. The deflated air bag is stowed in a reception space in the seat behind the armrest reception compartment. ADVANTAGE - Simple incorporation of infant safety seat, facilitating quick placing of infant in safe riding position.
Patent DE-4235185-A1 (DE)
Title: Flat power supply unit assembled from several elements - joined electrically by conductive parts extending through underlying circuit board and contacting electrode plates
Inventor: KUNISHI TATSUO
IPC: H01M50/51
Filed: 1992-10-19
Abstract: Each element (9) in a flat housing (10) serving for connection has an electrode plate (15) closely spaced with an insulating layer to form a second connection. The elements (9) are connected together electrically by metallisation (23, 24) on a circuit board (21) with a bonding layer (22) pref. of high-m.pt. polyamide resin without pinholes. Conductive parts (34-37) occupying through holes (26-29) in the board (21) connect the electrode plates (15) and portions (11) of the housings (10) to respective metallised connections (23, 24) on its surface. ADVANTAGE - Sealing of each element is achieved with structure which does not add significantly to thickness.
Patent DE-4236040-A1 (DE)
Inventor: SUESS GERHARD
IPC: B61G11/12
Filed: 1992-10-24
Abstract: The shock absorber for rail vehicles consists of two housing components (1, 2) which are guided telescopically one in the other and are clamped to one another, as well as at least two devices for absorbing mechanical energy which are arranged in the housing components, one of which devices being a piston-cylinder unit (5, 6, 7). This piston-cylinder unit is operatively connected to a coaxial compression spring (4), preferably made of cellular elastic material, in particular polyurethane, and contains an extremely dilatant fluid which is subjected to shearing as a result of the relative movement of the piston (6) and of the cylinder (5), and, in this process, experiences an increase in the shearing strain as a function of the shearing speed. The shearing of the dilatant fluid can take place in a shearing gap (14) between the outer surfaces of the piston and of the cylinder, it being possible for at least one outer surface also to be structured and/or in openings of the piston which extend in the direction of flow of the fluid. <IMAGE>
Patent DE-4241392-A1 (DE)
Title: Collision sensor for triggering passenger safety device in motor vehicle - contains bridging pieces between inner and central contacts ensuring contact only after contact between outer and central contacts.
Inventor: RICHTER BERND DR
IPC: B60R21/01
Filed: 1992-12-09
Abstract: The collision sensor contains outer, central (3) and inner (5) elongated electrical contacts which are at defined distances from each other on the outside of the vehicle. An evaluation circuit connected to the contacts generates a triggering signal only when there is a connection between the central and inner contacts within a defined maximum period after the occurrence of contact between the outer and inner contacts. Distance pieces (6) in the form of radius struts arranged between the central and inner contacts are compressible after contact between the outer and central contacts. USE/ADVANTAGE - The arrangement uses a simple, reliable mechanism to eliminate the dependence between the bridging of the two separation distances.Eg for actuating airbag.
Patent DE-4242698-A1 (DE)
Inventor: HIMMRICH JOHANNES DIPL CHEM DR
IPC: C07C51/41
Filed: 1992-12-17
Abstract: The alkaline earth metal/sodium acetate according to the invention comprises     from 18 to 22 % by weight of calcium (Ca<++>),   from 0 to 1 % by weight of magnesium (Mg<++>),   from 4 to 7 % by weight of sodium (Na<+>),   from 66 to 75 % by weight of acetate (CH3COO<->),   from 0 to 7 % by weight of water, and   from 0 to 2 % by weight of water-insoluble components.   It is prepared by reacting a calcium oxide containing at least 85 % of CaO with acetic acid and sodium hydroxide solution and granulating the reaction product to give particles of from 0.5 to 5 mm. The alkaline earth metal/sodium acetate according to the invention can be used as an environmentally friendly and low-corrosion deicing agent.
Patent DE-4300398-A1 (DE)
Title: Mfr. of motor vehicle body
Inventor: BEHDORFF HANS
IPC: B62D25/04
Filed: 1993-01-09
Abstract: The car body consists of aluminium. The metal sheet (1-4b) is roll-formed into a load-bearing structure. The edges of the sheet are positively connected to form a seam, by folding, beading, and/or flanging. The aluminium sheet may be roll-formed into a closed hollow profile, and the sheet edges are positively connected by welding, gluing, and/or stamping.Before forming, several sections of the sheet are notched, stamped, or perforated, to accommodate functional appliances. The sheet is then rolled, and supplied with connection elements. Alternately, the sheet may be coated, supplied with an adhesive foil, and the sections connected by heat after forming.
Patent DE-4304742-A1 (DE)
Inventor: DEGEN KLEMENS
IPC: B26B5/00
Filed: 1993-02-13
Abstract: A multi-purpose knife is shown and described which takes the form of an elongated handle, from each end of which there can optionally be extended a blade (29, 30), each blade (29, 30) being supported by inherently displaceable blade supports (27, 28) which can be locked in their pushed-inwards basic position. To ensure that only one of the two blades (29, 30) can be extended at any one time, provision is made for an actuating slide (15) to engage between the two blade holders (27, 28) by means of which slide (15) in each case one or other of the blade holders (27, 28) can be moved outwards against the resistance of a restoring spring (31) and for the actuating slide (15) to be gripped in the basic position in the direction of movement between the two manually operated alternating stops (39, 40), only one of which can be moved into the release position at any one time. <IMAGE>
Patent DE-4304778-A1 (DE)
Title: Torsion vibration damper for vehicle clutch-plate - has main and pre-dampers with accumulator units tensioning transmission line.
Inventor: BIRK ALBERT
IPC: F16F15/129
Filed: 1993-02-17
Abstract: A torsion vibration damper (1), particularly for a vehicle clutch-plate, has a pre-damper with a low stiffness accumulator and a main damper with a higher stiffness accumulator. The accumulators operate between the input and output sections of the dampers. The output section is a hub unit having a fixed flange with an internal profile, the internal profile inserting with play into an external profile. A friction section produces a friction hysteresis effect between flange and main damper input, on which the two accumulators are held under axial force. One accumulator tensions the input of the main damper and the hub, and the other tensioning the input of the main damper, the output of the pre-damper and the flange section. USE/ADVANTAGE - Improved operational life, simple, compact design.
Patent DE-4306585-A1 (DE)
Title: Pneumatic spring with pneumatic spring bellows of elastic material with embedded reinforcing inserts
Inventor: SCHNEIDER ECKHARD DR ING
IPC: F16F7/112
Filed: 1993-03-03
Abstract: A pneumatic spring has pneumatic spring bellows of elastic material with embedded reinforcing inserts and serves to mount machines, drive units and systems transmitting structure-borne sound and also to mount systems which can be excited by the transmission of structure-borne sound. In order to design the pneumatic spring in the industrially interesting frequency range free of excessive increases in the spring rigidity, the pneumatic spring bellows (11) is provided at the periphery with at least one vibration-influencing blocking mass (16). The entire blocking mass (16) corresponds to at least twice the mass of the bellows wall capable of vibration. The blocking mass (16) is arranged at a distance from the clamping points (12, 13; 12, 14). <IMAGE>
Patent DE-4308135-A1 (DE)
Title: Refillable dispenser for rolls of paper and/or film
Inventor: SCHUELEIN ROLF GUENTER
IPC: B65H35/00
Filed: 1993-03-15
Abstract: A refillable dispenser for rolls of paper and/or film has a housing 1 for receiving the rolls, which is provided with a longitudinally extending passage slot 6 or 7 for each roll for removal of the material wound thereon and with a guide slot 10, running parallel thereto, for a cutting slide 12 with a cutting blade 13 acting on both sides. The cutting blade 13 extends through the guide slot 10 so that sections can be cut off a plurality of rolls using one cutting blade. <IMAGE>
Patent DE-4311141-A1 (DE)
Title: Dispenser for free-flowing substances
Inventor: CONRADI BODO
IPC: B65D83/00
Filed: 1993-04-05
Abstract: The invention relates to a dispenser for free-flowing substances, in particular toothpaste, creams and the like, consisting of a container which is open at the top and whose opening is closed by a fitted-on pump whose suction pipe protrudes into the container. The object of the invention is to design the dispenser in such a way that it is refillable and can be used for a plurality of fillings. The invention consists in that a receptacle holding the free-flowing substance is inserted in the container and is attached to the upper edge thereof. This receptacle holding the free-flowing substance is exchangeable. It can be made of very inexpensive material in a simple manner. Its material is also hardly reusable due to the residues of free-flowing substance. However, with the exchangeable container, only little material is lost which was able to be processed with very little manufacturing outlay to form the exchangeable container.
Patent DE-4323970-A1 (DE)
Title: Exchangeable cartridge contg. light sensitive drum for copier or laser beam printer - consists of basic unit with support for reception of light sensitive drum, support having trunnion for rotational mounting of drum
Inventor: OHTSUKA YOSHINORI
IPC: G03G21/00
Filed: 1993-07-16
Abstract: The cartridge has a carrier (43) connected with the trunnion (42), and used for positioning the trunnion w.r.t. the basic unit (40). The support unit (41) is made of resilient plastic. An attachment is provided for positioning the basic unit (40) w.r.t. the main body of the image prodn. unit. The attachment is designed in one piece on the carrier (43) of the support unit (41). The cartridge has location elements, which facilitate the positioning of the support unit, by the engagement of a projection (44a) with a positioning opening (40b) designed on the basic unit (40). ADVANTAGE - Parts necessary for locating light sensitive drum in cartridge or cassette are reduced in number.
Patent DE-4333541-A1 (DE)
Title: Hair drier with an associated ironing surface
Inventor: GOECKEL RUDOLF
IPC: D06F75/30
Filed: 1993-10-01
Abstract: According to the invention, the ironing surface is formed permanently in the form of a hollow body on the outside of a hair drier, the housing of the hair drier and the hollow body of the ironing surface being made in one piece. The hot air generated in the hair drier can be introduced on one end face of the hollow body. For a better utilisation of the heat of the hot air, baffles are arranged in the interior of the hollow body.