baber/WOPTO huggingface dataset:
Patent EP-0322380-A3 (EP)
Title: A method for incrementally increasing the collector area of a lateral pnp transistor during electrical testing of an integrated device on wafer
IPC: G01R31/30
Filed: 1988-12-21
Abstract: The collector area of a lateral PNP transistor may be 
incrementally increased during an electric testing step 
on wafer of an integrated circuit by purposely 
forming an auxiliary p-type diffused collector region 
having fractional dimensions near the primary collector 
region of the transistor and by permanently shortcircuiting 
the two regions by means of a "Zener zapping" technique,e.g. by 
forcing a current through the inversely biased base-collec­
tor junction utilizing a suitable contact pad connected to 
said auxiliary collector region to create localized power dis­
sipation conditions sufficient to melt the metal of the 
respective metals at the adjacent contacts and to form a 
permanent connection between the two metals. The technique 
is very useful for adjusting the value of the output cur­
rent(s) in precision current generating circuits.
Patent EP-0338585-A3 (EP)
Title: Polyperfluoroaminoethers
IPC: C07C271/04
Filed: 1989-04-21
Abstract: Disclosed are new perfluoroaminoether polymers and a process 
for preparing them which comprises copolymerizing fluorinated 
olefins with certain oxaziridines in the presence of UV radia­
tion or of chemical initiators.
Patent EP-0343692-A3 (EP)
Title: Test piece coloration comparative decision unit
IPC: G01N21/29
Filed: 1988-07-27
Abstract: An apparatus is provided for making color comparisons between a test sample and a plurality of color samples. The color samples are arranged on a circle on a rotatable member and are successively moved into position adjacent a test sample. When an operator determines that a color sample adjacent the test sample is closest in color to the test sample he operates a switch which causes a stored numerical value associated with that sample to be read out and displayed on a display device.
Patent EP-0350813-A3 (EP)
Title: Resin molded product, method of producing same, and air vent device using same
IPC: B29C37/00
Filed: 1989-07-07
Abstract: A resin molded product is provided comprising a membrane (6) 
having at least one opening formed therethrough. The resin 
molded product includes a molded body having a pair of first 
and second portions (4,4') joined respectively to opposite sides of 
the membrane, the molded body having at least one connective 
portion interconnecting the pair of first and second portions 
and disposed in the opening. The membrane is either of a non-porous 
construction or a porous construction having a pore size 
of not more than 100 µm. In addition, a method of producing 
the resin molded product is provided. The resin molded product 
of the invention is suited for an air vent device, a filter, a 
diaphragm device, or the like.
Patent EP-0376246-A3 (EP)
Title: Pallet changing device
IPC: B65G25/08
Filed: 1989-12-27
Abstract: A device for changing pallets on machine tools is described, in which arrangement a single chain drive, run at least essentially in a quadrangle, is allocated to two change stations, and the chain drive can be coupled via coupling members to a pallet in a change station or in the working area of the machine and can be uncoupled after corresponding linear transport in the respective desired positions. <IMAGE>
Patent EP-0328381-A3 (EP)
Title: Clutch plate assembly
IPC: F16D13/68
Filed: 1989-02-09
Abstract: The invention relates to a clutch plate assembly having 
a hub (1), a friction facing carrier plate (4) mounted 
on the hub coaxial with the hub and capable of limited 
angular rotation relative to the hub, and a hub flange 
(8) fixed to the hub so as to rotate therewith. Damping 
springs (19) act between the facing carrier plate (4) 
and the hub flange (8) to resist rotation of the facing 
carrier plate relative to the hub, and those springs are 
located in spring pockets (18) formed between 
overlapping abutment formations formed integral with the 
facing carrier plate and the hub flange. Retaining 
means (15) retain the springs (19) in the spring pockets 
(18). The retaining means (15) may be integral with the 
hub flange and the facing carrier plate, or may comprise 
end caps (48) with formations (50) thereon for engaging 
the facing carrier plate and hub flange.
Patent EP-0339957-A3 (EP)
Title: A synergistic antimicrobial composition
IPC: A61K8/00
Filed: 1989-04-26
Abstract: An antimicrobial agent and its use together with an 
acid provides a composition that possesses synergistic 
effects. More particularly, there is provided a synergistic 
antimicrobial composition in the form of a quaternary 
ammonium compound and an acid such as boric, citric and 
malic.
Patent EP-0343792-A3 (EP)
Title: A noise elimination method
IPC: H03H17/02
Filed: 1989-04-27
Abstract: The invention relates to a method for the elimination of noise in an information channel. The frequency band of the channel (1) is first divided (CH1-CH4) into sub-bands (B1-B4), whereafter the useful value of the signal of each sub-band (B) is determined by comparing the signal level (S) to a reference level (Ref), in which case a constant signal of substantially the same level as the reference level (Ref) is suppressed (P1-P4), whereas a varying signal, defined as a useful signal, is summated, unsuppressed, with the useful signals of the other sub-bands (B1-B4). The frequency band of the channel is divided into sub-bands (CH1-CH4) by means of an all-pass filter construction. The method can be implemented using an analog or a digital filter construction.
Patent EP-0344021-A3 (EP)
Title: Para-alkylstyrene/isoolefin copolymers
IPC: C08F212/08
Filed: 1989-05-26
Abstract: Copolymers which are the direct reaction 
product of isoolefin having from 4 to 7 carbon atoms and 
para-alkylstyrene and which have substantially 
homogeneous compositional distillation are disclosed. 
These copolymers are preferably copolymers of isobutylene 
and para-methylstyrene, and preferably at least about 95 
wt. % of the copolymer has a para alkylstyrene content 
within about 10 wt. % of the average para-alkylstyrene 
content for the overall composition, and even more 
preferably the normalized differential refractive index 
and ultraviolet curves obtained by gel permeation 
chromatography for these copolymers are essentially 
superimposeable. These copolymers can also be 
halogenated, and in a particularly preferred aspect of 
the invention selectively brominated polymers are 
provided, with almost exclusive substitution taking place 
on the para-alkyl group, so as to yield a highly 
desirable benzylic halogen, and preferably bromine, 
functionality. Methods for producing these copolymers 
and halogenated copolymers are also disclosed.
Patent EP-0363069-A3 (EP)
IPC: H01L31/09
Filed: 1989-09-27
Abstract: A radiation detector comprising, a wafer of 
semiconductor material having a high-low junction formed on 
one planar surface, the high-low junction also continuing 
around the edge of the wafer and an annular region at the 
periphery of the reverse planar surface of the wafer, an 
electrically isolating region formed around the inner edge 
of the annular region of the reverse planar surface of the 
wafer, a rectifying junction formed over the remainder of 
the reverse surface of the wafer and means for making 
electrical contact to the high-low and rectifying 
junctions.
Patent EP-0361904-A3 (EP)
Title: Turbidity meter
IPC: G01N21/53
Filed: 1989-09-27
Abstract: A turbidity meter has a sensor unit (8) supported in 
a fluid under test with a light source (10) and at least two 
light sensors (12, 14) supported so that one light sensor(12) 
is in line with the source to receive transmitted light and 
the remaining sensor (14) or sensors are arranged to receive 
light scattered by the fluid. Both the source and the 
sensors have flow forming chambers (44) connected to a source 
(18) of pressurized fluid so that a thin layer of this fluid 
is caused to flow over lenses (42) of the source and sensors 
to prevent deposition of material from the fluid under test. 
The signals from the sensors are digitized, and the intensity 
of the source is digitally controlled to maintain at least 
one of sensor signals within a suitable range, thus enabling 
operation over a wide range of turbidities, and automatic 
selection of turbidimetric and nephelometric modes of 
operation as appropriate.
Patent EP-0365289-A3 (EP)
Title: Method for producing a filled water-crosslinkable silane copolymer composition
IPC: C08L43/04
Filed: 1989-10-17
Abstract: A method for producing a filled water-crosslinkable silane 
copolymer composition comprising 
   (A) a silane copolymer having a silane content of from 2 to 50 
percent by weight,    (B) a second polymer prepared from at least one olefin monomer 
selected from the group consisting of ethylene, propylene, 
butene, isobutylene, octene, 4-methyl-pentene-1 and 
hexene,    (C) at least one filler in an amount of from 5 to 75 percent 
by weight of the total weight of the composition and    (D) an organometallic silanol condensation catalyst,    
in which method the second polymer, filler and silanol condensation 
catalyst are blended together to form a masterbatch premix in which 
the silanol condensation catalyst is substantially homogeneously 
dispersed and subsequently blending the masterbatch premix with the 
silane copolymer to form a water-crosslinkable silane copolymer 
composition in which the silane content is from 0.5 to 25 percent by 
weight.
Patent EP-0332531-A3 (EP)
IPC: B23Q3/155
Filed: 1989-03-07
Abstract: The invention is directed to a method and apparatus for 
selectively and simultaneously drilling a plurality of 
holes in thin panels such as printed circuit boards, while 
providing for automatic changing of the drill bits, 
individually or plurally, as required. A tray of drill (36) 
bits is driveable in X and a row of vacuum pickers (32) are 
driveable in Y, so that the various bit locations of the 
tray are addressable by such X-Y positioning, and 
selectable vacuum pickers (10) are extensible and retractable so 
as to pick and place the drill bits (74) at various matrix 
locations of the tray (36). The vacuum pickers also are 
extensible and retractable through corresponding tray 
openings in order to deliver replacement bits to, and 
retrieve used bits from, a flipper (111) assembly associated with 
each drilling module. Each flipper assembly transfers bits 
back and forth between the vacuum picker and drill without 
having to transfer either bit through the opening in a 
footprint portion of the pressure foot which engages the 
materials to be drilled during the drilling operation. 
Thus, the footprint opening may be made smaller in diameter 
than depth stop collars or the like which are of greater 
diameter than the working portion of the bit which is 
advanced through the footprint opening during drilling. 
This smaller footprint opening of the pressure foot is for 
minimizing or eliminating hole "smears" and for overcoming 
problems normally associated with the so-called "oil can 
effect".
Patent EP-0366586-A3 (EP)
Title: Envelope addressing format feature for electronic typewriters
IPC: B41J5/30
Filed: 1989-09-26
Abstract: A function is disclosed that permits the operator of a 
typewriter to properly position the return address, on 
arrival instructions, special mail instructions and the 
addressee name and address properly on predesignated 
standard sized envelopes by entering the function and 
loading the envelope in the typewriter. The function acts 
to position the print point at the first field and then to 
progress to the subsequent fields as desired by the opera­
tor keying a key such as the tab key to progress to the 
next field. The field locations are determined by the 
operator selection of the envelope size.
Patent EP-0392246-A3 (EP)
IPC: H04B3/46
Filed: 1990-03-26
Abstract: The monitoring and control of a digital telecommunication transmission system take the form of a processor unit, which is set up as master, interrogating telemetry signals from other processor units set up as a slave. According to the invention, in the event of a fault within the monitoring and control system a further master is activated which, depending on the type of fault, carries out the interrogation of the telemetry signals either of the entire faulty locating section or at least a part thereof. <IMAGE>
Patent EP-0395920-A3 (EP)
Title: Nuclear fuel with burnable absorber coating
IPC: G21C3/18
Filed: 1990-04-10
Abstract: A burnable absorber coated nuclear fuel 
comprising a nuclear fuel substrate (44) of fissionable 
material, and an outer coating (46) applied on the 
substrate and composed of a burnable absorber having 
helium release reducing properties.
Patent EP-0396970-A3 (EP)
Title: Radio demodulator circuit
IPC: H04L7/033
Filed: 1990-04-26
Abstract: This invention relates to a circuit (13) for a 
radio, particularly a radio transceiver, suitable for 
implementation in gatearray or other integrated 
technology. In one aspect, the circuit comprises first 
means (102) for synchronising transmission timing to the 
timing of received radio signals (300) and second means 
(TRACKEN) for synchronising the first means to a clock 
(106,302) during periods between said received radio 
signals, thereby to facilitate synchronisation of the first 
means to the next radio signal to be received. In another 
aspect, means (72-76) are provided for monitoring the 
circuit inputs, to cause a read operation only when there 
is a change of input.  
     The invention also provides a digital frequency 
multiplier (120) and a demodulator circuit (100) including 
such a frequency multiplier.
Patent EP-0432537-A3 (EP)
Title: Supersulfated heparins
IPC: C08B37/10
Filed: 1990-11-22
Abstract: A process for the depolymerization and the supersulfation of heparin and the so obtained supersulfated heparins are disclosed. The process comprises treating heparin with oleum containing from 2 to 6% free sulfuric anhydride at a temperature from -10 to +20<o>C. The obtained heparins have molecular weights from 2000 to 5000 and a sulfation degree from 3.4 to 4.3. All of them are endowed with a remarkable antithrombotic activity.
Patent EP-0385765-A3 (EP)
IPC: C08F4/654
Filed: 1990-02-28
Abstract: A catalyst for polymerization of an olefin, 
said catalyst being formed from 
   [A] a solid titanium catalyst component com­
prising magnesium, titanium, halogen and an electron 
donor as essential ingredients,    [B] an organoaluminum compound catalyst com­
ponent, and    [C] an electron donor catalyst component com­
prising at least two electron donors including an 
electron donor (1) and an electron donor (2), the MFR (a) 
of homopolypropylene obtained by using the electron donor 
(1) together with the solid titanium catalyst component 
[A] and the organoaluminum compound catalyst component 
[B] has the following relation to the MFR (b) of homo­
polypropylene obtained by using the electron donor (2) 
under the same polymerization conditions as in the case 
of using the electron donor (1)  
log [MFR (b)/MFR (a)]≧1.5.    
This catalyst can give an olefin polymer having a broad 
molecular weight. Also provided is a process for poly­
merizing or copolymerizing an olefin in the presence of 
the above catalyst.
Patent EP-0393908-A3 (EP)
Title: Detergent composition
IPC: C11D1/72
Filed: 1990-04-10
Abstract: A deterdent composition comprises 
   (a) an anionic or nonionic surfactant and    (b) a dialkylamine oxide having the formula (I), a 
weight ratio of (a) to (b) ranging from 0.01 to 
100, 
  
in which R1 and R2 each are an alkyl having 6 to 18 
carbon atoms, an alkenyl having 6 to 18 carbon 
atoms, R3 is ethylene, isopropylene, n-propylene or a 
mixture thereof, R4 is an alkyl having 1 to 4 
carbon atoms, a hydroxy alkyl having 1 to 4 carbon 
atoms, benzyl or hydrogen and n is a number of 1 
to 20.
Patent EP-0428504-A3 (EP)
IPC: G06F11/26
Filed: 1987-05-22
Abstract: A programmable array logic device including a programmable logic array, at least one register pair, a multiplexer coupled to the register pair so that they can share a common I/O pin, and an observability buffer for controlling the multiplexer. A dual clock buffer is provided so that registers within the register pair can be clocked singly when in a preload mode or together when in a logic or verification mode. When in the logic mode, either the output of a buried state register or a output register is observed at the I/O pin under the control of a product term generated by the logic array. When in the preload mode the register to be preloaded is selected by an externally provided preload select signal. In the verification mode, which typically follows a programming mode, individually selected product terms within the logic array can be observed by clocking them into the register pairs.
Patent EP-0450413-A3 (EP)
Title: Security device for limiting the axial load of an endless screw
IPC: B23Q5/58
Filed: 1991-03-21
Abstract: A safety device for limiting axial operating loads which are exerted on a drive worm of a machine, such as a platen press, including a pressure chamber receiving a first piston connected to an auxiliary shaft, which is axially shiftable and non-rotatable, and is connected to one end of a main shaft of the drive worm. Fluid pressure in the pressure chamber holds the piston in a first position to maintain the axially displaceable connection of the other end of the main shaft to a drive shaft. In response to an axial overload, the pressure in the pressure chamber is relieved to eliminate the holding feature to allow the main shaft to shift axially to disengage it from the drive shaft. The safety device includes a second piston for moving the first piston to the first position where the drive shaft and main shaft are recoupled when the machine is in a rest position.
Patent EP-0477531-A3 (EP)
Title: Process for inhibiting and destroying peroxides in dialkyl ethers
IPC: C07C41/46
Filed: 1991-08-20
Abstract: A process for inhibiting and destroying peroxides in dialkyl ethers having the general formula R1OR2 in which R1 and R2 are alkyl groups having 1 to 6 carbon atoms, which comprises adding, as inhibitor, a quaternary alkyl iodide of the general formula [CH3alk3P]I to the dialkyl ethers.
Patent EP-0528448-A3 (EP)
Title: Dual mode video tracker
IPC: G06T1/00
Filed: 1988-07-18
Abstract: The present invention is related to a method of determining 
the correlation track quality in a correlation tracking system 
wherein difference video signals are accumulated over a track 
gate and used as an indicator of track quality status. At 
least one border gate is defined which at least partially 
surrounds said track gate, the difference video signals are 
accumulated over the border gate, and the accumulated 
difference video signals over the border gate are used as an 
indicator of track quality status.
Patent EP-0542381-A3 (EP)
IPC: C07C69/773
Filed: 1990-02-26
Abstract: Optically active compounds represented by the following 
formula are disclosed: 
   
     wherein R and R' are C₁₋₂₀ alkyl groups; X and Y₁ are -, O, S or 
divalent groups such as COO, OOC, and OCOO; A₁ is a cyclic group 
such as 1,4-phenylene, 2,5-pyridylene, 2,5-pyrimidinylene, 
3-6-pyridazinylene, 2,5-pyrazinylene, 2,6-naphthylene and/or 
4,4'-biphenylene, and Nt is à 2,6-naphthylene group.
Patent EP-0496511-A3 (EP)
Title: Disc cartridge
IPC: G11B/
Filed: 1992-01-13
Abstract: A disc cartridge has a cartridge body (2) formed with an aperture (6) for exposing at least a part of the signal recording area of an accommodated disc (1), and a shutter (9) slidably mounted on the cartridge body (2) to open or close the aperture (6). The cartridge body (2) is provided with a shutter opening groove (18) extending along the sliding direction of the shutter (9) which is parallel to the direction (L) of insertion of the disc cartridge (2) into a recording and/or reproducing apparatus to record and/or reproduce information signals on or from the disc, and a mistaken insertion inhibiting groove (19) extending parallel to the shutter opening groove (18) and having a length (G) shorter than the length (F) of the shutter opening groove (18). Mistaken insertion of the disc cartridge may be inhibited by mistaken insertion inhibiting pins (52, 53) provided in the recording and/or reproducing apparatus for mating with each of the grooves (18, 19). <IMAGE>
Patent EP-0511826-A3 (EP)
Title: Phosphosulfonate herbicides
IPC: C07F9/53
Filed: 1992-04-28
Abstract: This invention concerns phosphosulfonates having the general formula   <CHEM>  wherein   (1) Y is phenyl; naphthyl; benzyl; (C5-C8)cycloalkyl; a 5-membered heteroaromatic ring having from one to four heteroatoms each being independently N, O or S, provided that no more than one is O or S; a 6-membered heteroaromatic ring having 1, 2 or 3 nitrogen atoms; or a fused 5,6- or 6,6-membered heteroaromatic ring having from one to four heteroatoms each being independently N, O or S, provided that no more than one is O or S; wherein Y optionally has up to three substituents, each being independently halogen, cyano, nitro, (C1-C6)alkoxy, halo(C1-C4)alkoxy, (C1-C6)alkyl, halo(C1-C4)alkyl, phenyl, (C1-C4)alkylcarbonyloxy, di(C1-C4)alkylcarbamoyl or (C1-C4)alkoxycarbonyl, provided that   (a) no more than one of said substituents is present when Y is a thiadiazolyl ring or a tetrazolyl ring, and (b) no more than two of said substituents is present when Y is a triazolyl ring, a thiazolyl ring, or an isothiazolyl ring, except that when Y is phenyl, naphthyl or benzyl, it may have up to five substituents each being independently halogen, acetoxy, methyl, methoxy or halomethoxy, but no more than two of which are acetoxy, methyl, methoxy, or halomethoxy;     (2) X is oxygen or sulfur; and (3) R<1> and R<2> are each independently chloro, or (C1-C6)alkyl, (C1-C6)alkoxy, halo(C2-C4)alkoxy, (C1-C4)alkylthio, (C3-C4)alkenyloxy, (C3-C4)alkynyloxy, (C1-C4)alkoxy(C1-C4)alkoxy, (C4-C8)cycloalkyloxy, (C3-C6)cycloalkyl(C1-C3)alkoxy, cyano(C1-C4)alkoxy, (C2-C4)alkylideneiminooxy or amino each optionally substituted with one or two of (C1-C4)alkyl, (C2-C4)alkenyl or phenyl; provided that there is not more than one phenyl group on the amino group; also provided that R<1> may additionally be phenyl or phenoxy; and also provided that R<1> and R<2> may both be alkoxy so as to form together with the phosphorus atom a 6-membered oxygen-containing ring; except that when R<1> and R<2> are both alkoxy, Y is not phenyl, 4-methylphenyl, 4-chlorophenyl, 4-bromophenyl or 3-nitrophenyl; compositions containing these compounds and their use as herbicides. n
Patent EP-0547873-A3 (EP)
IPC: C12P21/02
Filed: 1992-12-15
Abstract: A novel translational activating sequence is disclosed, said translational activating sequence having an oligonucleotide sequence comprising: <IMAGE> Recombinant DNA vectors comprising the novel translational activating sequence and utilities thereof are also disclosed.
Patent EP-0551796-A3 (EP)
Title: Microcapsules, a process for their preparation and their use
IPC: A01N25/28
Filed: 1992-12-22
Abstract: This invention relates to a process for encapsulation and particularly for the preparation of 
microcapsules having a capsule wall of a solid polymeric substance enclosing a water-immiscible 
material, which process comprises preparing a solution of a first reactive 
component required to form the capsule wall in the water-immiscible material, then 
dispersing the mixture in an aqueous medium containing a surfactant which is a salt of a 
partial ester of a styrene-maleic anhydride copolymer, to form an oil-in-water emulsion, 
and subsequently adding a second reactive component required to form the capsule wall 
which is complementary to the first one and reacts with it under the mixing conditions, 
whereby a solid polymeric wall is formed about the dispersed water-immiscible material. 
The resulting stable aqueous suspension of microcapsules can either be used directly or 
after dilution with water, or the microcapsules can be separated from the aqueous phase.