baber/WOPTO huggingface dataset:
Patent EP-0351677-A3 (EP)
IPC: H01L29/06
Filed: 1989-07-08
Abstract: A process for forming a semiconductor device begins by diffusing an N layer having a relatively high concentration into a P wafer having a relatively low concentration. Next, the wafer is etched to yield a plurality of mesa semiconductor structures, each having a P-N junction intersecting a sidewall of the mesa structure. Then, a layer of oxide is grown on the sidewalls of the mesas, which oxide layer passivates the device. The oxidizing step curves the P-N junction toward the P layer in the vicinity of the oxide layer. Then, the P-N junction is diffused deeper into the P layer with a diffusion front which tends to curve the P-N junction back toward the N layer in the vicinity of the oxide layer. This diffusion is carried out to such an extent as to compensate for the curvature caused by the oxidizing step and thereby substantially flatten the P-N junction. A plurality of successive oxidation/diffusion steps can be undertaken to further flatten the junction adjacent the mesa sidewall. The resultant P-N junction has a greater breakdown voltage in the vicinity of the oxide layer due to the substantial flatness of the P-N junction. The decreased concentration gradient of the linearly graded junction in the vicinity of the oxide layer caused by the oxidizing step increases the breakdown voltage in the vicinity of the oxide layer above the bulk breakdown voltage. <IMAGE>   <IMAGE>
Patent EP-0352698-A3 (EP)
IPC: B41J29/38
Filed: 1989-07-24
Abstract: Es wird ein Verfahren zum Erzeugen einer Informa­
tion beschrieben, das die Art eines in einem Drucker vorhan­
denen Druckkopfes (18) angibt, der mindestens ein Druckele­
ment (86, 88, 90) enthält. Das Stellglied des Druckelements 
(86, 88, 90) hat einen elektrischen Widerstand, der über ei­
ne Auswertungsschaltung festgestellt wird. Dieser Widerstand 
wird einem von mehreren Widerstandsbereichen zugeordnet, die 
unterschiedlichen Druckkopfarten entsprechen. Die Auswertungs­
schaltung erzeugt als Information ein Typsignal (40a, 40b, 
40c) abhängig von der erfolgten Zuordnung. Das Typsignal 
(40a, 40b, 40c) wird einer nachgeordneten Steuerung zur Ver­
fügung gestellt, die verschiedene Arten von Druckköpfen (17, 
18) mit den jeweils passenden Steuersignalen versorgen kann. 
Die Erfindung kann auf praktisch alle Arten von Druckköpfen 
angewandt werden, deren Druckelemente über elektrische oder 
elektromechanische Stellglieder betätigt werden und demzu­
folge einen elektrischen Widerstand haben.
Patent EP-0355797-A3 (EP)
Title: Signalling apparatus for use in an atm switching system
IPC: H04L69/14
Filed: 1989-08-22
Abstract: A subscriber line signalling apparatus for use in an 
asynchronous mode communication system includes a switching 
circuit (30) having a plurality of input terminals (12-1 to 
12-j) and a plurality of output terminals (13-1 to 13-k). The 
switching circuit (30) selectively communicates fixed length 
information packets to an adaptation processing unit (100). 
The adaptation processing unit (100) reassembles the fixed 
length packets to signalling frames, and transmits them to a 
frame processor (40).
Patent EP-0360262-A3 (EP)
Title: Binuclear metathesis catalysts
IPC: C08G61/08
Filed: 1989-09-21
Abstract: A process for making a catalyst suitable for the 
metathesis polymerization of strained ring cycloolefin mono­
mers such as dicyclopentadiene, and comprising the steps of 
dissolving a tungsten compound consisting of WOCl₄ or a 
combination of WOCl₄ and WCl₆ in a solvent, and solubil­
izing and stabilizing the tungsten compound by adding a 
phenolic compound and a chelating agent or a Lewis base to 
the solution of the tungsten compound, and adding to the 
solution of the tungsten compound a halide complex of a 
transition metal belonging to Group IVB or Group VB of 
the Periodic Table, and the use of the catalyst, are 
disclosed.
Patent EP-0384004-A3 (EP)
IPC: B02C17/04
Filed: 1989-10-17
Abstract: A ground sand maker which includes a grinding drum (2); a mass of 
working pebbles (25) placed within the grinding drum; a driving 
device for rotating the grinding drum; an inlet port (17) pro­
vided on a first end (2b) of the grinding drum for supplying rock 
fragments (28) and water (26) into the grinding drum; and an 
outlet sieve (20) provided on a circumferential suface (2a) of 
the grinding drum adjacent a second end (2c) opposite to the 
first end for discharging ground sand and water.
Patent EP-0367278-A3 (EP)
Title: A process for producing aromatic polyesters
IPC: C08G63/60
Filed: 1989-11-03
Abstract: An aromatic polyester superior in heat resistance and 
melt-moldability is obtained by carrying out the polycondensation 
reaction with  
Component A consisting of at least one compound 
having the formula, 
  
wherein R₁ is 
hydrogen, formyl, acetyl, propionyl or benzoyl, and R₂ is hydrogen, a 
C₁-C₆ alkyl or a C₆-C₁₈ aryl,  
or a mixture containing not less 
than 50% by mole of said compound,  
     Component B consisting of at 
least one compound having any one of the formulas, 
  
wherein R₃ is hydroxyl, a C₁-C₆ alkyloxy, a C₆-C₁₈ 
aryloxy or halogen,  
or a mixture containing not less than 50% by 
mole of said  
 
compound, and  
Component C consisting of at 
least one compound having the formula,  
R₄O-A₁-OR₄  wherein A₁ 
is a divalent aromatic residue, and R₄ is hydrogen, acetyl, propionyl 
or benzoyl  
in a reaction vessel at a temperature of 270°C to 380°C 
until the flow temperature of the produced aromatic polyester reaches 
a temperature of 240°C or higher.  
     The aromatic polyester obtained 
by the process of the present invention can be used molded into 
various forms such as fiber, film, etc. In addition, compositions 
comprising this aromatic polyester and fillers can be used in machine 
parts, electric and electronic parts and automobile parts because of 
their excellent mechanical properties, electric properties, chemical 
resistance and oil resistance.
Patent EP-0372563-A3 (EP)
IPC: B25B1/10
Filed: 1989-12-08
Abstract: Der Maschinenschraubstock weist auf einem stationären Grundkör­
per (10) eine bewegliche Spannbacke (11) und eine stationäre 
Spannbacke (12) auf. Weiter sind Niederzugsbacken vorhanden, 
die eine lagegerechte Festlegung des Werkstückes beim 
Aufspannen mittels der Antriebseinrichtung (16) erlauben. 
Dadurch, daß die Niederzugsbacke (18) bis zu einem Anschlag 
am Grundkörper (10) bewegbar ist, wobei die der Aufspannkraft 
im wesentlichen entgegenwirkenden Niederzugskräfte von einem 
die Verformungen des Schraubstockes aufnehmenden, kraftüber­
tragenden, an sich bekanntem Element (13) abgeleitet sind, 
wird eine höhere Lagekonstanz und damit eine höhere Präzision 
erreicht.
Patent EP-0362013-A3 (EP)
Title: Apparatus for screwing and unscrewing at least one nut at connection elements
IPC: B25B29/02
Filed: 1989-09-14
Abstract: The subject of the invention is an apparatus for screwing in and unscrewing a clamping nut (5) and an extension piece (13) arranged face to face, the said extension piece (13) of each connection element (2) interacting with a ring (1) for simultaneous tensioning of the said connection elements, characterised in that it comprises a carriage (20) for guiding and moving the said apparatus around the ring (1) for tensioning the connection elements (2), and disengagable means (30) for moving the extension piece (13) to be screwed in or unscrewed and driving it in rotation, and disengagable means (40) for driving, in rotation, the clamping nut (5) to be screwed in or unscrewed, the said means being supported by the carriage (20) and being movable along an axis parallel to the axis of the connection element (2) and at a speed identical to that of the nut (5) or of the extension piece (13) moving during its screwing in or its unscrewing. 
<IMAGE>
Patent EP-0348363-A3 (EP)
Title: Amplitude comparison ultrasound receiver for localizing submarine sound sources
IPC: G01S3/803
Filed: 1989-06-20
Abstract: The receiver comprises: at least a pair of 
receiving transducers (TS, TD) with squint axes, i.e. 
axes inclined to each other; an electronic circuit 
(15, 16) combined to said pair of transducers for 
amplifying and processing of signals detected by the 
amplitude comparison transducers; and a system for 
displaying the processed signals.
Patent EP-0378070-A3 (EP)
Title: Method and apparatus for limiting the utilization of an asynchronous bus with distributed controlled access
IPC: G06F13/368
Filed: 1990-01-02
Abstract: A plurality of units which are coupled to transfer 
requests, transfer data over an asynchronous bus 
network during allocated bus transfer cycles. The 
network has a tie-breaking bus priority network which 
is distributed to a common interface portion of each of 
the plurality of units and grants bus cycles and 
resolves simultaneous requests on a priority basis. At 
least one unit includes bus saturation detection 
apparatus included within its common interface portion 
for monitoring bus activity over established intervals 
of time. The detection of the occurrence of at least 
one available cycle over the given interval of time 
signals that the bus network is not in a saturated 
state. When the indicator specifies that the bus 
network is saturated, the unit throttles down its 
operation by increasing the amount of time between 
issuing data requests. Throttling continues until the 
bus is no longer being saturated.
Patent EP-0390051-A3 (EP)
Title: Method and apparatus for computing the self-motion of moving imaging devices
IPC: G06T1/00
Filed: 1990-03-27
Abstract: Determining the self-motion in space of an 
imaging device (e.g., a television camera) by 
analyzing image sequences obtained through the 
device. Three-dimensional self-motion is expressed as 
a combination of rotations (,ϑ,ψ) about the horizontal and 
vertical camera axes and the direction of camera 
translation. The invention computes the rotational 
and translational components of the cameras 
self-motion exclusively from visual information.  
Robust performance is achieved by determining the 
direction of heading (i.e., the focus of expansion) as 
a connected region instead of a single location on the 
image plane. The method can be used to determine when 
the direction of heading is outside the current field 
of view and when there is zero or very small camera 
translation.
Patent EP-0391344-A3 (EP)
Title: Manually-propellable wheeled vehicle with obstacle-negotiating device
IPC: A61G5/00
Filed: 1990-04-03
Abstract: A manually-propellable wheeled vehicle, such 
as a baby stroller includes a pair of skids (12, 14) extending 
longitudinally of the frame (2) and pivotally mounted at 
their rear ends on an axis (16) extending tranversely of the 
frame, and releasably retained either: (a) in a 
retracted, non-operative position to permit the vehicle 
to be manually propelled along a supporting surface, or 
(b) in an extended, operative position wherein their 
front ends are lowered to engage the inner surface of a 
stair, curb, or other obstacle in the supporting 
suface, and thereby to permit the wheeled vehicle to be 
slid on the skids over the obstacle.
Patent EP-0417428-A3 (EP)
Title: Tube bundle heat exchanger
IPC: F28F9/02
Filed: 1990-07-16
Abstract: A nested-tube heat exchanger with tubes (1) secured at each end in tube plates (3 & 4) for transferring heat between a hot gas that flows through the tubes (1) and a liquid or vaporous contact that flows around the pipes. The tube plates are secured to a jacket (2) that surrounds the nest of tubes. One of the tube plates has parallel cooling channels (7) in the half that faces away from the jacket with coolant flowing through the cooling channels. The tube plate has bores (15) that open into the jacket, communicate with the cooling channels, and concentrically surround the tubes. The tube plate that has the cooling channels is at the gas-intake end of the heat exchanger. The tubes in each row extend through cooling channels. The base (12) of the cooling channels on the side that is impacted by the gas is uniformly thick.
Patent EP-0429802-A3 (EP)
Title: Textile fabric with opposed absorbent and non-absorbent layers and method of fabricating same
IPC: D04B21/04
Filed: 1990-10-05
Abstract: An integrally fabricated textile fabric has a relatively thick, dense liquid retaining absorbent pile layer of hydrophilic yarns and a non-absorbent napped layer of hydrophobic yarns at opposite faces of the fabric integrated with an intermediate ground yarn structure. The napped hydrophobic yarn layer serves to wick liquid to the absorbent hydrophilic yarn layer while resisting return flow leakage. The fabric is preferably fabricated on a warp knitting machine wherein a set of hydrophilic yarns are warp knitted by the bottom machine guide bar in overfed needle loops at the technical face of the fabric, a set of hydrophobic yarns are warp knitted on the top machine guide bar in needle loops and extended nappable underlaps at the technical back of the fabric, and two sets of ground yarns are warp knitted by a respective pair of middle guide bars intermediate the fabric faces.   <IMAGE>
Patent EP-0421519-A3 (EP)
Title: Device for feeding flattened and piled cardboard boxes to a vertical magazine located on the top of a machine for forming cardboard boxes
IPC: B31B50/06
Filed: 1990-09-27
Abstract: The device comprises a transfer assembly (19) to progressively transfer to a main vertical magazine (2) located at the top of a machine for forming cardboard boxes the cardboard box at the top of said pile of cardboard boxes located in an auxiliary magazine (6) to one side of the forming machine. There is associated with the transfer assembly (19), opposite the top of auxiliary magazine (6), a solenoid valve (22) through which the upward movement of the cardboard boxes in auxiliary magazine (6) is stopped in the time interval between the start of the withdrawal of the cardboard box from auxiliary magazine (6) and its positioning on rollers (36). At the top of said main magazine (2) there is an upper photocell (39) suitable for stopping the movement of the transfer assembly (19) when the main magazine is full and a lower photocell (40) suitable for putting the same assembly (19) back in motion when the number of cardboard boxes contained in main magazine (2) is lower than a certain threshold.
Patent EP-0380215-A3 (EP)
Title: Method and apparatus for injection molding of multilayer preforms
IPC: B29C49/08
Filed: 1990-01-12
Abstract: A method of and apparatus for forming 
multiple layer preforms wherein the various layers may 
be varied as to number, material, thickness and 
position in the preform by controlling the injection of 
the specific materials as to timing, quantity and rate 
of delivery. Most specifically, a featured aspect is 
the ability to simultaneously deliver to an injection 
nozzle and through such injection nozzle into a preform 
mold cavity two or more molten plastic materials 
simultaneously. This is possible by way of the multiple 
gate nozzle and a plurality of separately operable 
metering pots all controlled by way of a timing device. 
The timing device may also control the rate of the 
dispensing an individual material from each of the 
metering pots.
Patent EP-0388220-A3 (EP)
IPC: A61K9/00
Filed: 1990-03-16
Abstract: Biodegradable sustained-release compositions capable of achieving the sustained release of chlorhexidine, comprise chlorhexidine digluconate, a protein such as gelatin (which may be cross-linked) and optionally a plasticiser such as glycerin. The compositions can be formed into implant devices which may be used to treat a wide variety of diseases and conditions. The implants are especially useful in treating disease such as periodontal disease which require prolonged drug release.
Patent EP-0403120-A3 (EP)
Title: Colour display colour control
IPC: G06F3/048
Filed: 1990-05-31
Abstract: A display system is described for producing and showing colour images 
which includes a screen for displaying an interactive user interface. 
The display interface includes image colour choice areas, anti-alias 
colour choice areas, a current colour area, an echo icon area and 
user-movable cursor indications. The invention enables the display 
system user to choose among a plurality of displayed colours and to 
visually determine the effect of the choice. The method includes 
moving a cursor indication to a colour choice area, displaying the 
colour choice in the current colour selection area; and displaying in 
the echo icon area an echo icon drawn using the colour choice. This 
enables the display system user to see an enlarged view of the colour 
choice and an icon drawn with the colour and enables the user to assess 
the effect of the colour choice, both from the standpoint of the 
enlarged view and from the standpoint of exhibiting an expanded 
anti-aliased figure. In addition, the colour alteration also causes 
the image to be modified to reflect the colour change, thus enabling 
the user to obtain a complete assessment of the results of the colour 
selection.
Patent EP-0388311-A3 (EP)
IPC: H05K1/18
Filed: 1990-03-16
Abstract: A chip carrier for mounting semiconductor device chips 
thereon. The chip carrier includes a flexible tape (2) and metal 
wires (1) formed on the surface of the flexible tape. Each of the 
metal wires includes an inner lead portion (1a) and the inner 
lead portions are supported by the flexible tape. The flexible 
tape is formed with an opening (3) in an area thereof inside the 
forward ends of the inner lead portions.
Patent EP-0387240-A3 (EP)
IPC: F16N39/06
Filed: 1990-03-06
Abstract: Bei einer Anordnung für ein hydraulisches Druckmittel bzw. 
Schmieröl aufnehmende Flüssigkeitsbehälter (1) ist in einer 
zumindest teilweise oberhalb des Flüssigkeitsspiegels lie­
genden Filterkammer (2) ein ringförmiger Filtereinsatz 
(3) vorgesehen. In diesen Filtereinsatz (3) führt eine 
Saugleitung (10) aus dem Flüssigkeitssumpf (8). Die Filter­
kammer (2) und der Filtereinsatz (3) sind durch einen 
Deckel (4) verschließbar und die Filterkammer (2) ist über 
eine weitere Saugleitung (11) an einer Pumpe angeschlossen. 
Um die Anordnung zum Füllen und Entleeren des Flüssigkeits­
behälters (1) verwenden zu können, ist der Rand der Filter­
kammer (2) zu einem Einfüllstutzen hochgezogen. Ferner 
besteht die Saugleitung aus dem Flüssigkeitssumpf (8) 
aus einem im Sumpfbereich mit Seitenöffnungen (9) ver­
sehenen, im Flüssigkeitsbehälter (1) schraubverstellbar 
gelagerten Rohr (10). Dieses trägt einen Verschlußkör­
per (14) für eine untere Ablaßöffnung (15) des Flüssigkeits­
behälters (1).
Patent EP-0479334-A3 (EP)
Title: Device for detecting and measuring small amounts of charge or current
IPC: G01T7/12
Filed: 1987-12-08
Abstract: A device for detecting and measuring small amounts of charge or current. The device comprises at least one charge detection subassembly (1,n) with an integrated circuit (100,120,130), a collecting electrode (110,E₁,155,170) that comprises an electrically conductive sense pad mounted on said integrated circuit (100,120,130) for collecting charge accumulated thereon, an amplifying means (20,T<sub>o</sub>,157,174,176) for generating a signal representative of the collected charge. Said amplifying means including an input transistor (T<sub>o</sub>) mounted on said integrated circuit and electrically connected to said collecting electrode (170). A controlled discharge means (176,T₁, T₂) is provided for removing charge from said collecting electrode (170). Furtheron means (22,24,186, 188) are provided for minimizing inaccuracies in said device due to leakage currents to said collecting electrode (110,E₁,155,170) from said controlled discharge means or said amplifying means. The device additionally comprises interface means for (36, 174, 212) buffering said signal from said amplifying means, detector control means (30,184) for controlling said discharge means, and means for supplying power (173, 206) to said amplifying means, said controlled discharge means, and said detector control means.
Patent EP-0488778-A3 (EP)
Title: A radioactive iodine compound for labeling an antibody
IPC: G01N33/534
Filed: 1991-11-29
Abstract: The radioactive iodine compound of this invention or an intermediate for preparing the compound is represented by the following formula (I): <CHEM>  wherein R is H or <1><2><5>I. The radioactive compound can readily introduce a radioactive isotope element such as <1><2><5>I into an antibody molecule without damaging the activity of the antibody molecule. Therefore, the compound can preferably be used to label an antibody of immunoradiometric assay, and allow a higher degree of measurement sensitivity.
Patent EP-0547565-A3 (EP)
Title: Apparatus for measuring the distance between two moving vehicles using light waves
IPC: G01S17/931
Filed: 1992-12-15
Abstract: To measure a distance between two running vehicle, a 
measurement signal (S1) is first generated by irradiating light 
beam toward an article to be measured and then receiving 
the reflected light beam from the article. An apparatus 
for determining the forgoing distance therebetween using 
light wave operates such that a reference signal (S2) and the 
measurement signal (S1) generated in that way are input a 
digital mix-down circuit (1) composed of two-stage flip-flop 
circuits (U1,U2) to determine a phase difference between the 
reference signal (S2) and the measurement. The apparatus 
includes as essential components a clock delay circuit (10) for 
delaying the going-high edge of the measurement signal (S1) 
while the reference signal (S2) is going high at an output 
terminal of a flip-flop circuit (U1) on the input side of the 
digital mix-down circuit (1) and a data delay circuit (20) for 
delaying the going-down edge of the reference signal input 
into a data terminal of the flip-flop circuit (U1). Usually, 
the clock delay circuit (10) is electrically connected to the 
digital mix-down circuit (1) via the data delay circuit (20), while 
the data delay circuit (20) is electrically connected directly 
to the digital mix-down circuit (1). Alternatively, both the 
clock delay circuit (10) and the data delay circuit (20) may 
electrically be connected directly to the digital mix-down 
circuit (1).
Patent EP-0530874-A3 (EP)
Title: New pentaerythryl phosphonates and their use in self-extinguishing thermoplastic polymeric compositions
IPC: C08L101/00
Filed: 1992-08-04
Abstract: A new group of pentaerythryl diphosphonates and of formula (I): <CHEM>  and poly(pentaerythryl diphosphonates) of formula (II): <CHEM>  are described. Flame-retardant compositions are also described, which include a thermoplastic polymer and a certain amount of self-extinguishing agent consisting of one of the above-mentioned pentaerythryl diphosphonates or poly(pentaerythryl diphosphonates).
Patent EP-0562371-A3 (EP)
Title: Immobilisation of biochemical substances
Inventor: VON GENTZKOW WOLFGANG DR
IPC: C12N11/08
Filed: 1993-03-10
Abstract: A method for the immobilisation of biochemical substances, especially enzymes, is characterised by the following steps:   - an olefinically unsaturated, epoxy-functional polysiloxane is applied in the form of a film to a carrier material, - the polysiloxane is crosslinked by high-energy radiation or with a peroxide to give a wide-mesh epoxy-functional polymer matrix, - the film is treated with an aqueous solution of the biochemical substance, resulting in immobilisation of the biochemical substance by reaction with epoxide groups in the polymer matrix, - the film is stabilised by reaction of unreacted epoxide groups with a compound containing amino and/or carboxyl groups.