baber/WOPTO huggingface dataset:
Patent DE-4003533-A1 (DE)
Title: Harmful materials desorbed by very low pressure - are frozen in separate cooler chamber for disposal
Inventor: ERBEL HORST
IPC: B01D53/04
Filed: 1990-02-06
Abstract: In the recovery of environmentally harmful material, esp. halogenated hydrocarbons, which have been collected in an adsorber, the adsorber material is heated to slightly below the decompsn. temp. of the adsorbate, in the presence of air. Adsorbent may be active carbon. While sealed from the atmos., the  adsorption chamber is reduced by a vacuum pump to very low pressure, where desorption occurs the desorbed gas/vapour is then cooled to or below the freezing point of the removed material. Cooling may be by stages, first to below the dew pt. and then below the  solidification point. A conduit discharging cool chamber contents to atmos. may include a further adsorber for residual material. USE/ADVANTAGE - Suitable e.g. for perchlorethylene, decomposing at about 150 deg C at normal pressure and freezing at -23 deg C. No gaseous or vaporised desorbate enters the environment.
Patent DE-4007995-A1 (DE)
Inventor: BACH VOLKER
IPC: B01D33/11
Filed: 1990-03-13
Abstract: In a method for removing oil or the like from an open water surface, an oil-absorbing granular material is applied to the open water surface and then a mixture of water and granular material is removed from the water surface (90). The water/granular material mixture is separated in a separating apparatus (50), the granular material being supplied to disposal and the separated water being returned to the open waters. The separating apparatus used for the water/granular material mixture is a screening machine equipped with a slotted screen drum (170). <IMAGE>
Patent DE-4008407-A1 (DE)
Title: Seal for rotating valve element - has pressure seal with periodic pressure pulses to loosen seal
Inventor: ESSMANN WOLFGANG DIPL ING
IPC: B65G53/46
Filed: 1990-03-16
Abstract: The rotating valve element (5) is sealed axially by seals (7) held in position by pressure rings (8) and backed by special pressure seals (9). These are conencted to a pressure supply (11) which provides periodic pressure pulses. These provide a loosening effect on the main seals and prevent them sticking in their seats. The pressure supply can be appleid either with a high frequency, or with periodic pressure pulses. The pressure pulses can be provided by a switching system operated by an electronic pulsing circuit, incorporating a timing circuit. ADVANTAGE - Prevents tight seals from sticking, prevents seals being damaged, ensures valve opening force is held in set limits.
Patent DE-4009608-A1 (DE)
Title: Impact press for ceramic mouldings - on feed-screw principle with specified checks of moulding thickness
Inventor: MICK MARTIN
IPC: B30B11/00
Filed: 1990-03-26
Abstract: Ceramic mouldings are produced by an impact spindle press and the height of the moulding is measured between strokes immediately before the return stroke for comparison with the desired height. After a certain relaxation time to permit any expansion, the top ram is made to contact the top of the moulding and its stroke up to the top end position is measured and compared with the nominal desired value. ADVANTAGE - This permits a premature end of the press operation, if the compression desired has been acheived prematurely.
Patent DE-4010955-A1 (DE)
Title: Combined pile driver and drilling rig - has two telescopic parts actuated by hydraulic cylinder and elastomeric spring
Inventor: WALTER LUDWIG
IPC: E02D7/16
Filed: 1990-04-05
Abstract: The machine, which can be used as a pile driver or drilling rig, consists of a lower part (1) and an upper part (2) which fits telescopically over the lower part (1).  The lower part (1) is provided with a bracket (3) for attaching to an excavator.  The upper part (2) has a bracket (4) on which a vibrator or a drill can be mounted. The upper part (2) is raised or lowered relative to the lower part (1) by a hydraulic cylinder (5a) and piston rod (5b).  The force required to be exerted by the hydraulic cylinder in the downward direction is reduced by means of a tension spring (8).  This tension spring (8) is formed by an endless belt of elastomeric material which passes around pulleys (9,10) attached to the lower (1) and upper (2) parts respectively of the machine. USE - Pile driving and drilling.
Patent DE-4011882-A1 (DE)
Title: Zeolite granulate calcination in rotary calciner - with closed spiral screw, useful for high activity esp. in oxygen purificn., by pressure swing adsorption
Inventor: ULISCH GUENTER
IPC: C01B13/02
Filed: 1990-04-12
Abstract: Calcination of zeolitic granulates is carried out in an indirectly heated rotary calciner, which has feed and discharge equipment for solids and gases, a sealed central tube (6) extending over the entire length of the calciner and a spiral screw (5) connected closely with both the central tube and the outer rotary tube (9). USE/ADVANTAGE - The process is claimed esp. for calcination of zeolite A and zeolite X granulates. Very good contact between gas and solid can be obtd. in a narrow dwell spectrum and the granulate is freed from dust. The granulates are useful e.g. for drying and purifying gases and liquids and sepg. isomer mixts.. The process is esp. useful for continuous drying of Ca zeolite A granulate with SiO2 binder, using a small specific amt. of gas free from CO2, which is a highly selective granulate for enriching O2 by a pressure swing adsorption process. It is also suitable for drying zeolite Y, ZSMS, zeolite L, chabasite, chinoptilolite, erisnite, offretite, mazzite etc.. (6pp Dwg.No.1+2/2)
Patent DE-4011888-A1 (DE)
Inventor: STUMPF JUERGEN
IPC: A43B5/04
Filed: 1990-04-12
Abstract: In the shaft (1) of a shoe, pressure chambers (3, 4, 5) are provided, which can be inflated by means of a gas bottle (6) when an extension sensor (7) signals the risk of twisting the foot. Inflation of the pressure chambers (3, 4, 5) takes place so quickly that injury to outer tendons is excluded. 
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Patent DE-4018388-A1 (DE)
Inventor: IENAGA TATSUHIKO
IPC: E05D15/10
Filed: 1990-06-08
Abstract: A horizontally sliding plane sash window includes a window frame (A) having an opening formed by assembling a head (1), a sill (2) and right and left jambs (3, 3'), an inner sash (B') and an outer sash (B) which are horizontally slidably provided in the opening. Glass panels of the inner and outer sashes are located in the same plane when the opening is closed by moving the inner sash toward one of the jambs and the outer sash toward the other jamb. The outer sash is supported by at least a pair of lower wheels (23) which move along a lower guide rail provided on the sill while the inner sash is supported by at least pair of sash pulleys (34, 35) which move along an upper guide rail provided on the head. A curved gap is provided between one end portion of the upper guide rail located on the inner side of the lower guide rail which is closer to one of the jambs in such a manner that it gradually approaches the lower guide rail, and a roller which moves along the curved gap is fitted into the curved gap. The roller is rotatably supported at one end of an arm piece whose other end is pivotally mounted on an upper end of a style of the inner sash. <IMAGE>
Patent DE-4019701-A1 (DE)
Title: Testing and selection of human endo-joint-prosthesis - by applying forces radially and measuring bone extensions before and after implantation in human synthetic or animal joint, esp. for hips
Inventor: HERZOG TONI H DR
IPC: A61B5/11
Filed: 1990-06-21
Abstract: The method involves preparing a human, synthetic or animal joint and fixing the bounding bones (4,6) relative to each other. A defined, measured, axial force is then applied to the bones, the resulting extension of the bones measured and a similar measurement is then made after implantation of a joint prosthesis at the same joint. USE/ADVANTAGE - Esp. for testing and selecting prosthetic hip joints. Enables manufacturer to test quality of joint as well as suitability for intended type of recipient.
Patent DE-4025153-A1 (DE)
Inventor: BOGNER MARTIN
IPC: A63C9/00
Filed: 1990-08-08
Abstract: A heel unit of a ski binding has a housing (12) which is resiliently rearwardly deflectably mounted on the ski. A sole clamp (13) having a hold-down member (13') and a pedal element (13''), and also a hand-opening lever (15) are pivotably mounted about a transverse axis (14) in each case. The sole clamp (13) is biased by a release spring (16) into a closed position via a transmission (17, 18) having a deadpoint (26'). The sole clamp (13) can snap into an open position under the action of excessive vertical forces by moving through the deadpoint (26). The sole clamp (13) and the hand-opening lever (15) are pivotally mounted about the same transverse axis (14) which is arranged in the front region of the housing (12). Actuating abutments (19, 20) which cooperate with one another are provided at a radial distance from the transverse axis (14) and an opening moment is transmitted from the hand-opening lever (15 ) onto the sole clamp (13) via these actuating abutments.
Patent DE-4025906-A1 (DE)
Title: Cheap, compact packaging for spools of magnetic tape - is assembled from one or more folded sections, with fixed spindle for secure location of reels
Inventor: TORAL JOSE
IPC: B65D85/672
Filed: 1990-08-16
Abstract: Spooled magnetic tapes are packaged together to minimise the requirement for packaging materials. Existing packaging designs have problems of cost, bulk, or additional packaging requirement for transport. Several designs are proposed, all including an outer cover (preferably cardboard) and a plastic securing spindle (5) which holds the spool of tape in place. The spindle is fixed into holes in the covering by means of a flange and/or ring clips.The cover structure is fastened together by tabs, using glue, slots or plastic fasteners. The corners of the package are cut off to facilitate the addition of foil wrapping. ADVANTAGE - Reusable or recyclable packaging.
Patent DE-4026326-A1 (DE)
Title: Integrated circuit chip having identification circuit - has voltage limiter and option unit determining identification by existence of current path, between power and input terminals
Inventor: JEON DONG-SU
IPC: H01L21/82
Filed: 1990-08-20
Abstract: The semiconductor integrated circuit chip has an identification circuit connected between any one of the power voltage supply terminals and any one of the input terminals. The identification circuit comprises a voltage limiter having a predetermined limiting voltage level for limiting the input potential difference between the power voltage supply terminal and the input terminal, and an option unit connected in series with the voltage limiter for determining the identification information of the chip according to whether or not a current path is formed during the manufacturing process of the chip. - The voltage limiter comprises a set of serially connected MOS transistors whose respective gates are connected to the drains thereof. The predetermine limiting voltage level is set to be the sum of the threshold voltages of said MOS transistors. The option unit consists of a fuse connection or disconnection of which is obtained during the manufacturing process of the chip.
Patent DE-4027863-A1 (DE)
Title: Ring inserted under access shaft cover -  has extension strips hinging elastically on outer periphery of main part
Inventor: BECK ERHARD
IPC: E02D29/14
Filed: 1990-09-03
Abstract: The ring is inserted between the cover and frame of an access shaft in a road, path etc.  It is flat, its outer edge forming an inlay between the two. The edge (4) comprises a large number of strip-type extension pieces (5), hinging elastically on the outer periphery (1') of the ring (1). The material thickness of these pieces can be less that of the main part of the ring. ADVANTAGE - Better seating of cover, together with sound-dampening and longer life.
Patent DE-4031150-A1 (DE)
Title: Yarn guide wear measurement - uses short and abrupt changes in yarn draw tension to calculate component wear to prevent stoppages through guide failure
Inventor: HEERHAUS JUERGEN
IPC: B65H59/18
Filed: 1990-10-03
Abstract: To determine the level of abrasive wear on a component in a textile machine, where the yarn passes over it in constant contact and at a constant yarn tension, the amount of wear is continuously measured. The actual level of draw tension on the yarn is taken into account with every deviation from the mean draw tension, for the abrupt and short-term changes in terms of a few msec. to give the rises in yarn draw tension, by measurement and calculation. Pref., the actual level of the yarn draw tension contains the deviations from the mean value in a preset mathematical averaging, using the square root of the squared mean deviation integrated with time. Before the yarn reaches the contact component, its draw tension is smoothed to give no abrupt and short-term draw tension increases, and it passes to the component to be laid on it at a generally constant force and without looping at the feed side. ADVANTAGE - The method gives measured results which can be reproduced, with the lowest possible spread, to show the wear on the yarn feed component to prevent sudden and unplanned machine stoppages through a component failure.
Patent DE-4032587-A1 (DE)
Title: Support for motor vehicle - is made of composite fibre material and has U=shaped cross section with ridges
Inventor: RATHJE VOLKER
IPC: B60K5/12
Filed: 1990-10-13
Abstract: The support, made of composite fibre material, especially for a motor vehicle has a U-shaped cross section.  At least the lengthwise part of the support from the base (3) of the U has ridges (5-8,10,11) extending between the sides of the U. The ridges slope in relation to the lengthwise middle plane of the support, or slope in opposite ways and intersect in the lengthwise middle plane. USE/ADVANTAGE - The support on which torque is exerted possesses high flexural strength on account of the ridges on it.
Patent DE-4033361-A1 (DE)
Title: Bipolar high voltage transistor - comprises collector-base junction covered with layer of polycrystalline silicon@ and undoped CVD-silicon di:oxide
Inventor: DAHLMANN RAINER DIPL ING
IPC: H01L23/532
Filed: 1990-10-15
Abstract: Transistor comprises a collector-base junction covered with a passivation layer contg. a layer of polycrystalline Si and a layer of an undoped CVD-SiO2 on the Si layer. Polycrystalline Si layer is pref. oxygen-doped on the collector-base junction. ADVANTAGE - Yield of transistors with high reverse voltage rating having good switching behaviour is increased. In an example, p-conducting regions of the base (2) and protection ring (4) are produced in an n-conducting Si-semiconductor body (1) of thickness 250 microns and specific resistance 40-60 ohm.cm by diffusion of B and the n-conducting emitter region (3) by diffusion of P into the p-conducting base region (2). After adjusting the vertical structure, the oxide layer remaining after diffusion of the emitter region on the semiconductor surface is removed. Oxygen-doped polycrystalline Si-layer (5) of thickness 75 nm and an oxygen content of 16-25 at.% is applied by deposition onto the semiconductor surface. Polycrystalline layer is then completely removed in the base and emitter regions, whilst the region of the base-collector junction and protection ring (4) remain completely covered with polycrystalline-Si. Layer (5) is selectively removed. First undoped CVD-SiO2 layer (6) of thickness 300 nm and subsequently a P doped CVD-SO2 layer (7) of thickness 500 nm and P content 2% and also an undoped CVD-SiO2 layer (8) of thickness 500 nm.
Patent DE-4036225-A1 (DE)
Title: Petroleum distillates with improved cold flow - contg. ethylene-based flow improver and copolymer of alkyl acrylate] and unsatd. di:carboxylic acid in amide form
Inventor: KONRAD GERD DR
IPC: C10L1/22
Filed: 1990-11-14
Abstract: Petroleum distillates with improved properties contain minor amts. of a conventional ethylene-based flow improver (I) and a copolymer (II) comprising 10-95 mol.% of one or more 1-26C alkyl (meth)acrylates and 5-90 mol.% of one or more ethylenically unsatd. dicarboxylic acids or anhydrides, post-reacted with one or more primary or sec. amines to form the corresp. monoamide or amide/ammonium salt. (I):(II) wt. ratio is 40-95:60-5. - Pref. (I) is a copolymer of ethylene with vinyl acetate, vinyl propionate or ethylhexyl acrylate. (II) is a copolymer of 40-95% lauryl acrylate or 8-18C alkyl acrylate and 5-60% maleic anhydride, post-reacted with di(hydrogenated tallow) amine (DHTA), behenylamine or n-octadecylamine. (II) is opt. grafted onto (I). The distillates contain 50-5,000 ppm (I)+(II).
Patent DE-4038284-A1 (DE)
Title: Measuring position and direction of motion of part - moving in translation and/or rotation using single sensor and direction encoded signals, esp. for vehicle electric windows and roof
Inventor: BECKER HERBERT
IPC: G01D5/249
Filed: 1990-11-30
Abstract: A method of measuring the position and direction of a part involves evaluating pulses produced by the drive system for the system contg. the part. A defined number of counter pulses is generated in a rotation coded sequence per complete revolution of the rotary drive or counter pulses are generated in rotation direction encoded form from a defined number of direction encoded analogue signals. The encoded pulses are fed into a computer in which they are added or substracted according to the encoded direction information. USE/ADVANTAGE - Esp. for electric windows and sun roof of a motor vehicle. Enable high resolution to be achieved using only one sensor.
Patent DE-4039844-A1 (DE)
Inventor: FISCHER THOMAS DIPL ING
IPC: H05B1/02
Filed: 1990-12-13
Abstract: In a temperature regulator for soldering and unsoldering equipment having a heating device fed by a controllable electric source of heating current, the heating output of which is transmitted to a spot to be soldered by a heating output transmission device, a signal that is proportional to the temperature of the heating device is generated and compared in a comparator of a control circuit to a set value. The control circuit derives from the output signal of the comparator a control signal for controlling the source of heating current. In addition, a temperature sensor (5) is arranged in the area adjacent to the spot to be soldered of the heating output transmission device (3), the output signal of which is compared in another comparator (23) of another control circuit (23, 27, 28) to another set value (7). The second control circuit supplies another control signal for controlling the source (11) of heating current. The control signals from the first control circuit (13, 17, 18) are supplied to the first input and the control signal from the second control circuit (23, 27, 28) are supplied to the second input of an AND logical element (20), the output signal of which only switches on the controllable source (11) of heating current when both control circuits simultaneously supply output signals for temperatures lying below the respective set values.
Patent DE-4101196-A1 (DE)
Title: Bolt joint for bucket chains in conveyor - includes moulded plate constantly oscillating between shackles
Inventor: ERLE WIELAND
IPC: B65G17/38
Filed: 1991-01-17
Abstract: The bolt joint for a bucket chain comprises a bucket shackle, two nose shackles and a divided bucket chain bolt which is locked in the nose shackle against rotation. Between the bucket and nose shackles (1,2) there is a moulded plate (3) with collar (7) which engages in the recess (10) of the nose shackle. The bore is worked out towards the rounded side up to the collar (7) whereby the shackles are tensioned in the recess of the head of the chain bolt half (4b) by deforming the closer of the chain bolt half (41). A slide body (6) can be provided between the chain bolt halves (4a,4b). ADVANTAGE - Through the constantly oscillating movement of the moulded plate larger play areas are spanned in the radial and axial direction resulting in reduced wear.
Patent DE-4101525-A1 (DE)
Title: Seal between hollow concrete components - uses permanently plastic material partly filling one groove accommodating sealing strip
Inventor: BUESCHER HENRICH DIPL ING
IPC: F16L21/00
Filed: 1991-01-19
Abstract: The seal is for use between hollow profiled concrete components. Continuous peripheral grooved strips are contained in the mating and faces and accommodat a sealing strip pressed into both. Permanently plastic material (8) is inserted into one grooved strip (5,6) but does not fill it.  The sealing strip (7) is then inserted in this strip, and the components (1,2) are brought together.  The sealing strip is a closed ring of constant thickness over its axial length, and the width of the grooves is also  constant in the axial direction. ADVANTAGE - Forms reliable seal while allowing components some movement apart.
Patent DE-4103424-A1 (DE)
Title: Closure for endless track chains - is divided into upper and lower chain members, upper member having projecting trapezoidal effective connecting section
Inventor: HEE BUM HEO
IPC: B62D55/205
Filed: 1991-02-05
Abstract: The chain closure comprises a chain link, a pin, a socket, and a track chain shoe (5). It has an upper member (6a) with holes (7) to accommodate screw bolts, a socket insert hole (8), and a projecting effective connection section (12). It also has a lower member (6b) with tapped holes (9) and a pin insert hole (10). The lower member also a recessed trapiezoidal effective connection section (13). The two effective connection sections (12,13) provide a union between the upper and lower chain members (6a,6b). Screw bolts (B,B') are inserted through the accommodation holes (7) and secured in the tapped holes (9), thus holding the upper and lower chain members firmly together. The upper and lower chain members are sepd. from one another by limiting surfaces (11) which are stepped, and the two effective connection sections have inclined surfaces (14,14') which fit into one another when the iunion is formed. USE/ADVANTAGE - For heavy land vehicles, as a closure for endless track chains which does not require the use of special tools for assembly and dismantling.
Patent DE-4104664-A1 (DE)
Title: Solid dry cake for cleaning skin - contg. salt of isethionic acid ester and alkali metal salt of alkyl:sulpho:acetate, avoiding prodn. of slime when wet
Inventor: STANZL KLAUS DR
IPC: C11D1/12
Filed: 1991-02-15
Abstract: Solid, dry cakes for cleaning the skin, in which salts of at least one ester of isethionic acid are present in excess w.r.t. other active washing cpds., contain (a) 20-50 wt.% of water-sol. alkali metal salts of isethionic acid esters with pref. mixed 6-22C aliphatic fatty acids, with iodine value below 20, (b) 3-30% of an alkali metal salt of a 10-16C alkylsulphoacetate, and (c) other usual additives of washing cakes. The cakes have pH 5-7.5, as 8% aq. soln. The cake may also contain 5-30% of a 12-25C fatty acid, esp. lauric, myristic, palmitic, stearic, behenic, or erucic acid, 8-25% of a micro-wax with m.pt. above 45 deg.C, 6-25% of an ester of a 14-22C fatty acid with a 14-22C diol, triol or polyol, 6-25% of an ester of a 14-22C fatty acid and a 14-20C mono-alcohol, and 0.5-8% of a water-sol. inorganic salt, esp. NaCl and/or Na2SO4. Use of a combination of a Na salt of an isethionic acid ester, and the Na salt of an alkylsulphoacetate, in solid, dry cakes for cleaning the skin, pref. in ratio of 20-50 pts. wt. of the isethionic acid ester:3-30 pts. of alkylsulphoacetate, is claimed. ADVANTAGE - The cakes do not become slimy when w