baber/WOPTO huggingface dataset:
Patent DE-3842295-A1 (DE)
Title: Trickling filter for the biological treatment of water
Inventor: KSIENZYK HORST
IPC: C02F3/10
Filed: 1988-12-16
Abstract: A trickling filter for the biological treatment of water which bears on both sides a multiplicity of drip rods in opposite axial directions in pairs, each of which has a shared bore hole running through the trickling filter. As a result of the capillary action in the multiplicity of tubes thus formed, microorganisms collect in these which are not washed out when the trickling filter is cleaned.
Patent DE-3910699-A1 (DE)
Title: Printed circuit board for integrated circuits
Inventor: REPENNING C DR
IPC: H01L23/14
Filed: 1989-04-03
Abstract: Known printed circuit boards consist of carrier plates which do not conduct heat and are not resistant to breaking. The object of the invention is to obtain a printed circuit board on which heat-dissipating components can be arranged close to one another, with it still being possible, however, to keep the temperature stable. At the same time, the printed circuit board is intended to be resistant to breaking. In the case of the printed circuit board, the carrier plate (1) consists of a heat-conducting metal plate (2), on the plate surface of which an electrically insulating layer (3) is located, as is diagrammatically represented in the single figure. The invention makes it possible to prepare flat components which are resistant to breaking and are stable with respect to temperature and can also be protected against radiological beams, electric fields, and the influence of moisture and the surroundings. <IMAGE>
Patent DE-3911716-A1 (DE)
Title: Process and equipment for drying sludges - with steam evolved in double-screw contact dryer, used to preheat the sludge in heat exchanger
Inventor: SCHRAUFSTETTER WILFRIED
IPC: C02F11/13
Filed: 1989-04-10
Abstract: De-watered sludge is heated in a heat exchanger to 70 to 80 degrees C before being taken to a double-screw contact dryer where it is dried by applied and evolved heat. The jacket of the dryer is heated to 120 to 250 degrees C by oil or steam, particularly by waste or exhaust steam. The steam evolved in the dryer is used for pre-heating the sludge. The equipment consists of a heat exchanger (1) below which is a dryer (2) which contains two rotating screws driven by a motor (5) and which is fitted with a heating jacket (11). The vapour evolved in the dryer (2) is conveyed by pipes (13) to the heat exchanger (1). The heating jacket (11) is connected by pipes (16,17) to a heating system (18). All of the equipment is mounted on a transportable frame. USE/ADVANTAGE - This invention is used for drying clarifier sludge, industrial sludge etc. The proposed system is energy efficient, a high degree of drying is achieved, and the equipment required is economical to construct.
Patent DE-3913779-A1 (DE)
Title: Multi-stage mixer-settler for counter-flow extn. - has separate chambers joined obliquely by three part connector including resilient sleeve
Inventor: WOJTECH BERNHARD DR
IPC: B01F7/16
Filed: 1989-04-26
Abstract: In a multi-stage mixer/settler for counterflow extn.  of small amts. of two phases, the mixer chambers contg. a motorised stirrer in the square cross-section below a circular cross-section in the upper third upright, with the settlement chambers branching off at 45 deg. Of three connecting ports in each chamber, the top port in a settlement chamber is connected to the top port in the following mixer chamber, and the bottom port to the lower port of the preceding mixer chamber. Interchamber connections are formed by branch tubes between the individual chambers and linked by tube couplings. Axes of top and bottom branch tubes are perpendicular to the axes of the chambers they connect, while the middle tube tilts downward at about 85 deg., while the axis of the middle branch tilts upwards at the same angle. The tube couplings are resilient sleeves of PTFE joined to glass chambers. ADVANTAGE - No. of stages can be adjusted to required sepn. function in laboratory operation.
Patent DE-3917250-A1 (DE)
Title: Preservation of highly contaminated natural products by ozonisation - sterilisation and germ eradication is achieved by activating and killing germs by passing carbon di:oxide then ozone over the goods
Inventor: KARG JOERN E
IPC: A23L3/3409
Filed: 1989-05-26
Abstract: Preservation of highly primary contaminated natural products through ozonisation is described. The ozone yield is significantly increased. Two treatment phases are used, the first involving the breaking up, sensitisation or conditioning of the goods to be treated and a second phase involves the sterilisation of the activated goods. In the first treatment stage the goods are loaded into a rotating drum and by addition of water or steam are adjusted to a moisture content of 10-16% and a temp. of 20-40 deg.C. The treatment duration is 2-10 hrs. under the continual passage of air or oxygen at a low drum speed. In the second sterilisation stage CO2 is passed through for a short period before the goods are subjected to an ozone gas mixture for up to 8 hrs. A further CO2 flushing period follows. The ozone is obtained by passing CO2 and/or O2 gas through an energised ozoniser. USE/ADVANTAGE - Natural products with a high germ content, typically drugs, spices, fruit, vegetables, cereals can be preserved. Maintenance of the sterilisation power is achieved until the process is complete and goods with a high germ content can be successfully treated. No changes in smell or taste at the conclusion are apparent.
Patent DE-3917418-A1 (DE)
Title: Electrohydraulic control valve - has fail-safe position provided by fluid pressure acting on sliding control piston
Inventor: CLEASBY KENNETH GEORGE
IPC: F15B13/044
Filed: 1989-05-29
Abstract: The valve has a housing (3) with a pressure feed channel (29) and at least 2 working channels (31,33), containing a control piston (7) displaced relative to a longitudinal channel (49), sealed at one end by a valve device (17).  The control piston (7) is displaced against a spring bias via a proportional magnet (25) between a neutral position and 2 working positions, with a fluid pressure used to displace the piston (7) into a fail-safe position.  The pressure supply to the working channels (31,33) and/or the latter are coupled together in the fail-safe position. The bias spring (15) cooperates with stops (19,9) which only allow it to act on the control piston (7) when the latter is in the neutral position or one of the 2 working positions. ADVANTAGE - Optimum fail-safe control i.e. reacts rapidly but not too soon.  Danger risks for operator(s) removed.
Patent DE-3934500-A1 (DE)
Title: Sterilisation of foodstuffs, partic. spices and dried fruits - food particles are passed through chamber on conveyor belt and subjected to microwaves and ultrasonics
Inventor: AHLERT BURKHARD PROF DR
IPC: A23L3/01
Filed: 1989-10-16
Abstract: In a process for sterilizing foodstuffs, the sterilizing action is effected by both microwaves and ultrasonics. Foodstuffs are passed through the sterilizing chamber in a continuous stream. Equipment for the process consists of a chamber inside which is a microwave generator and a conveyor belt for the foodstuffs. The food conveyor can itself act as an ultrasonic source or can be coupled to a separate source. USE/ADVANTAGE - Continuous sterilization of foodstuffs, particularly spices and dried fruits. The process is environmentally friendly, process times are reduced and smaller particles of food can be sterilized.
Patent DE-3937512-A1 (DE)
Title: Cover latch for electrical light - has simple linkage mechanism for securing cover to housing
Inventor: WEISBARTH KLAUS-DIETER
IPC: F21V17/18
Filed: 1989-11-10
Abstract: The electrical lighting unit has a main housing (9) that is bowl shaped and is enclosed by a cover (1) that is produced of an opaque plastic material.  The inside of the cover supports a latch mechanism that secures the unit to the housing when a knob is turned through an angle. The latch mechanism has a link (5) fixed to the knob (8).  At each end of the link is a latch plate (4,6) that is supported by a bolt (19,20) passing through a slot.  The centre link is coupled to the latch plates by pins (28,29).  Rotation of the knob causes the edge of the plates (11) to engage with the housing lip (12). ADVANTAGE - Simple latching operation to secure cover in position.
Patent DE-3937869-A1 (DE)
Title: Analog input multiplying circuit for A=D converter - has measuring period counter, adjustable by digital input values
Inventor: REINER ROBERT DIPL ING
IPC: G01D3/02
Filed: 1989-11-14
Abstract: The circuit multiplies an analog input value (1) by a digital input value (16). It uses a dual slope process for an A/D converter with an integrator (4 - 7), a comparator (8), a control (9 - 11, 2, 3), a clock pulse generator (14), a result counter (13), and a measuring period counter (12). The measuring period counter is adjustable by the digital input value. Pref. a memory (19), which can be loaded with the digital input value, is coupled to the adjusting input of the measuring period counter. The memory may contain several, preset memory contents, selectable by the digital input value. ADVANTAGE - Low-cost design for digital sensitivity compensation.
Patent DE-4000617-A1 (DE)
Title: Light-weight recyclable car - runs on stored solar energy and diesel engine with three-cylinders and two-strokes
Inventor: OTTENSMEYER HANS-ULRICH
IPC: B60T1/10
Filed: 1990-01-11
Abstract: The car is constructed from light-weight materials to weigh less than c.300kg. It has only one dirver seat at the front but at the rear 2 emergency seats. (Most cars are occupied by only one person). The car has a low level of noise (inside a max. of 65 dB(a)). To avoid injury to pedestrians, selected front regions of the car are made from a hard-foam cladding. All parts can be recycled. The car runs on diesel (0.5-2.5 l per 100km) or on stored solar energy. The suspension is active. The engine may be a 3-cylinder 2-stroke diesel that can also act as an industrial engine. The a.c. generator/starter is mounted axially and reduces weight and increases efficiency. The car is capable of making short journeys solely using solar energy.
Patent DE-4001726-A1 (DE)
Title: Modifying distributed feedback laser grid - etches grid by ion beam such that treated part-region remain ridges in place of grid depressions
Inventor: WOLF THOMAS
IPC: H01S5/12
Filed: 1990-01-22
Abstract: The modified distributed feedback laser grid (1) is located in a semiconductor component. At least a partial region (5) of the grid etched by an ion beam such that in the partial region remains ridges (10) at the points of the original grid groove. The ridges have dimensions sufficient for the distributed feedback laser grid. Pref. the partial region is separated from the remaining laser grid by at least one line orthogonal to the grid grooves. The separation may be also provided by a line parallel to the grid grooves. A complementary region (4) of the grid may be so etched that the ridge extension remains preserved w.r.t. the original grid. USE/ADVANTAGE - For the mfr. of semiconductor lasers, with simple mfr. with a portion shifted by a half-grid period.
Patent DE-4003604-A1 (DE)
Inventor: SPINDLER JOERG
IPC: B01L7/00
Filed: 1990-02-07
Abstract: Clinical chemistry parameters, in particular the concentration of certain substances such as the enzyme GPT, the heparin cofactor AT3 and the blood clotting time factors FVIII and FIX, are determined by measuring the variation of optical density with time using a reader which measures the variation with time of the optical extinction coefficients of ninety-six samples on a microtitration plate. During the measurement, the microtitration plate is held stationary in the reader. Measurement is carried out by transilluminating the samples in the absence of diffuse light. The samples are previously conditioned and maintained with high precision at a constant measurement temperature.
Patent DE-4006533-A1 (DE)
Inventor: HEISS JUERGEN
IPC: E05C1/04
Filed: 1990-03-02
Abstract: A safety device serves for securing windows and doors against opening by force. The safety device (1) consists essentially of two holding parts, one being designed as an approximately rail-shaped carrier part (6) having an undercut profiling and the other holding part being designed as a closing part (7) pushable onto the carrier part in the longitudinal direction and possessing matching counter profilings. The closing part (7) has a laterally projecting closing tab. Where a window is concerned, the carrier part (6) is screwed firmly to the window frame and the closing part (7) pushed onto the carrier part (6) in the locking position engages with its closing tab over the edge of the window wing. For the closing part (7) there can be a mounting (14) which holds captive the closing part removed from the carrier part (6). <IMAGE>
Patent DE-4012960-A1 (DE)
Title: Wire prodn. for material with carbon content over 0.035 per cent - involves applying thermally stable and mechanically loadable sepg. layer and drawing wire in one or more stages
Inventor: KURZE BERNHARD DIPL PHYS
IPC: B21C9/00
Filed: 1990-04-24
Abstract: Process for production of wire with a carbon content of over 0.035% involves the prior provision of a suitable separating layer of sufficient thermal stability and mechanical loading capacity and then drawing the wire in one or more steps. The layer density is so adjusted in the region of from 1-30g per square metre, that on the wire surface during mechanical working a roughness profile with a contour component maximum of 30% in 0.5 micrometres is produced. During drawing the wire is not subjected to any particular cooling. A post-coating is effected before the drawing step, after which the contour component of 30% is exceeded without undertaking intermediary coating. ADVANTAGE - Economic production of high quality steel wire is achieved. Strain ageing is reduced without additional cooling being required.
Patent DE-4013091-A1 (DE)
Title: Electric battery power supply in handlebars of bicycle - consists of requisite number of concealed pref. rechargeable batteries wired to fuse and two end switches
Inventor: WALTER MARCO
IPC: B62J6/00
Filed: 1990-04-25
Abstract: The batteries (b) are connected in series with a safety . fuse (e) between a load switch (c) and an earthing switch (d) within the approximately straight tubular handlebars of a so-called ''mountain bike''. The wiring from the load switch (c) is taken through a small central hole to the frame of the bicycle and thence to its lamps. Other electrical or electronic components connected to the power supply may be installed on or in the handlebars. ADVANTAGE - Batteries are secured against theft, damage and loss, and their visual impact and that of wiring are reduced.
Patent DE-4013607-A1 (DE)
Title: Ultrasonic piezoelectric systems - are controlled by one single generator for all plastics or metal welding, drilling or polishing, and washing or cleaning applications
Inventor: KAHL HORST
IPC: B08B3/12
Filed: 1990-04-27
Abstract: Piezo-systems are regulated when used for welding plastics or metals, drilling or polishing, and washing or cleaning. The process used records all the physical actual and target values as well as derived figures; it regulates all the components centrally; it recognises all the physical target values; it assembles together all the individual regulating circuits with their actual and target values in one or more positions to form one regulating circuit; it has one single regulating strategy which embraces all the regulator circuits; this strategy incorporates tracking an individual variable in dependence upon one or more other variables; at the same time it controls this one and/or other variables somewhat parallel in direct and mutual dependence in one common control loop. ADVANTAGE - Instead of requiring a separate generator for every different application this system provides a concept which meets all requirements without limitations.
Patent DE-4015182-A1 (DE)
Inventor: HOESS WERNER DIPL ING
IPC: C08L33/00
Filed: 1990-05-11
Abstract: Homogeneous polymer mixtures of polymethacrylimides consist of a component (A), composed of from 30 to 90 percent by weight of methacrylalkylimide units and from 3.5 to 10 percent by weight of methacrylic acid units, and of a component (B1) or (B2) having from 10 to 50 percent by weight more methacrylalkylimide units than component (A), component (B1) having a degree of imidization of less than 95 percent and containing from 3.5 to 10 percent by weight of methacrylic acid units, and component (B2) having a degree of imidization greater than 95 percent and containing less than 3.5 percent by weight of methacrylic acid units.
Patent DE-4015562-A1 (DE)
Title: Fitting clips around blood vessels - involves tubular extension to jaws to hold required number of clips
Inventor: STORZ KARL DR MED
IPC: A61B17/128
Filed: 1990-05-15
Abstract: Clips are fitted around blood vessels in the course of endoscopic abdominal surgery by a special instrument. This instrument has two curved jaws (1,2) which are formed integrally with a tubular extension (3) which fits in the end of a tube forming part of the instrument. This tubular extension (3) is used for holding clips (4) which can be pressed forwards into the jaws (1,2) by means of an actuating rod (6) inside the tube which forms part of the instrument. The instrument need not be removed from the incision each time that a clip is put in place. USE - Surgery.
Patent DE-4016454-A1 (DE)
Title: Lighting hood for food display counter - has low wattare high pressure sodium vapour discharge tubes with broad spectrum output and reflectors
Inventor: WOHLMUTH HERBERT
IPC: F21S8/00
Filed: 1990-05-22
Abstract: A lighting hood (7) for a food display counter (1) houses high pressure sodway vapour lamps (9) with individual double concave reflectors (16) clipped into the hood (7) behind the lamps (9). The stabilising electronics for each lamp are contained in a small intermediate box (12) which also accommodates the screw cap connector (15) for the lamp (9). Main controls for the assembly are located in the base of the counter (1) and are internally cabled (13) to the separate intermediate boxes (12). The lamps (9) provide a warm spectrum at 2500 deg.K and consume only 30 to 100 watts per unit. USE/ADVANTAGE - Partic. for counters displaying foodstruffs e.g. Meat products fruit, pastries etc. is energy efficient with broad spectrum output and avoids harsh illumination of other tyres of tube. Reflectors concentrate light to give good distribution. Low thermal output prolongs display life of perishables.
Patent DE-4018290-A1 (DE)
Inventor: EISENBACH BERND
IPC: B29C37/04
Filed: 1990-06-07
Abstract: The invention relates to an apparatus for finishing the corner joints of frames welded from profile pieces, such as window frames, having finishing units (1, 2) which are able to move in the plane of the frame and perpendicularly thereto into the respective finishing position on the frame, a holder for the frame and stop means (6) which are able to move in the plane of the frame together with at least one finishing unit (1) and come to rest on the inner side of the two frame members (4, 5). It is envisaged here that, for corner joints of frame members (4, 5) of the same width, counteracting stop means (7) are provided, interacting with the stop means (6) and bearing on the outer side of the frame members (4, 5), whereas for finishing corner joints with frames welded in an offset manner, the stop means (6) are held in a position and pushing means (8) are provided for pressing the corner joint against the stop means (6). <IMAGE>
Patent DE-4024711-A1 (DE)
Inventor: PIAYDA KARLHEINZ DIPL ING
IPC: E01C23/08
Filed: 1990-08-03
Abstract: In a method for roughening road surfaces in which roughening elements are moved along the road surface and periodically subjected to force, the roughening elements are pressed into the road surface by means of pulsating forces which are absorbed by a large mass lying above, and are at the same time moved in translational motion parallel to the road surface. In a device for implementing the method, each roughening element (W) is held on a carrier (3) on which it can be moved up and down. The carrier (3) is fastened to a frame (2) which is situated above it and which represents a large mass (M). Between the roughening elements (W) and the frame (2) are arranged a plurality of downward acting, preferably hydraulic, drives (P) by means of which the roughening elements (W) lying on the road surface are pressed into said surface. <IMAGE>
Patent DE-4025197-A1 (DE)
Title: External mirror system for goods vehicle - enables driver to see oncoming traffic
Inventor: HINDERER BERND RICHARD
IPC: B60R1/10
Filed: 1990-08-09
Abstract: The external mirror system is for a goods vehicle arranged on the offside of the vehicle and directed towards oncoming traffic. The field of view of the mirror is reflected into a mirror directed towards the good vehicle driver. USE/ADVANTAGE - Safety arrangement which enables a driver to see around a vehicle in front before attempting to pull out prior to overtaking.
Patent DE-4030367-A1 (DE)
Title: Three-link coupler for agricultural implements - has lower links swivelably mounted on intermediate pedestal about horizontal axis
Inventor: LAUMANN BERNHARD
IPC: A01B49/00
Filed: 1990-09-26
Abstract: The agricultural implement couple is attached to the  rear of a first implement and has two lower guide links and an upper guide link forming a parallelogram. The lower guide links (10), engaging the second implement (5)  are swivellably mounted about a horizontal axis (12) on an intermediate pedental (11). They are connected to the first implement (4) by levers (13) mounted above the swivel axis, and by setting members (14, 15) which allow the lower guide rods a restricted degree of freedom. ADVANTAGE - Simple design for moving automatically the second implement centre of gravity nearer to first one.
Patent DE-4035822-A1 (DE)
Title: Laminar material for use inside cars - has rigid structure with soft feel, comprising plastic film, flock type cushioning layer and outer shaped foam and this assembly can also be repeated
Inventor: BALL WILFRIED
IPC: D04H3/10
Filed: 1990-11-10
Abstract: A laminar material for use inside cars consists at least partly of a plastic film, a cushioning layer, and a moulded foam layer. In this assembly the cushion is a fabric mat and pref. a flock material. In its prodn. the textile material is applied to the back of the plastic film, with or without adhesive, and an impervious layer is then added before the moulded foam. The layer can provide the bond between its adjacent materials. It is best to then apply the foam in several layers (e.g. at different positions). The prod. can alternatively be made by rotary slush casting. The film is produced first and flock material applied in the rotary mould. The final foam can also be formed in the same mould. A second film can also be added to make a sandwich article and this given the foam covering. ADVANTAGE - The prod. has a good soft feel but a stiff surface. (0/0)
Patent DE-4036845-A1 (DE)
Inventor: KREUZER KONRAD
IPC: B08B15/02
Filed: 1990-11-19
Abstract: Fume cupboard with a box-like housing in which a working space is located and which is open on one side, and with a sliding door which can be moved vertically on the open side of the housing into an opened and a closed position and is constructed on its, in the closing direction, front edge as a handle profile edge 2, the front edge of the floor 4 of the housing being constructed with an aircraft carrier surface-like profile 3 and with a forwardly directed leading surface. <IMAGE>