baber/WOPTO huggingface dataset:
Patent EP-0361965-A3 (EP)
Title: Pulse width modulation type digital-to-analog converter
IPC: H03M1/06
Filed: 1989-09-29
Abstract: A PWM type D/A converter having a first PWM 
converter (1), a second PWM converter (2) and an analogue 
adder(5)/subtracter(6). The digital input signals are 
designated as odd and even numbered input signals and the 
reference timing points for outputting odd/even numbered 
reference timing points are designated as odd/even 
numbered reference timing points. The first PWM 
converter receives the digital input signal to output 
signal whose rising/falling timing point is set at the 
earlier/later the timing, the larger the value of the 
odd/even numbered reference timing point relative to the 
odd numbered reference timing point and the pulse width 
is determined by the values of the odd numbered input 
signal and the next even numbered input signal. The 
second PWM converter receives the digital input signal to 
output signal whose falling/rising timing point is set at 
the later/earlier the timing, the larger the value of the 
odd/even numbered reference timing point relative to the 
odd numbered reference timing point and the pulse width 
is determined by the values of the even numbered input 
signal and the next odd numbered input signal. The 
second PWM converter is also made to determine the output 
signal by the complementary values of odd numbered input 
signal and the next even numbered input signal.
Patent EP-0375585-A3 (EP)
Title: Method for manufacturing a bi-cmos device
IPC: H01L27/06
Filed: 1989-11-07
Abstract: A method for fabricating a Bi-CMOS device including 
both vertical PNP and NPN components. The process steps 
include forming the reach-through N+ subcollector to the 
bipolar device without extra processing steps; combining 
into one mask the threshold adjust/well implants with 
self-aligned isolation leakage protection implants by 
using a self-aligned, removable oxide mask prior to field 
isolation; using a resist etch-back scheme to protect 
against emitter-to-base punch-through while self-aligning 
the pedestal and base; and also providing for the removal 
of the gate oxide at the emitter while maintaining it at 
the FET, without extra masks.  
     The device incorporates similar structural features 
between the bi-polar and FET devices. The NPN and PFET 
can share the same well and a P+ diffusion (the P+ extrinsic 
base is the same as the P+ source). Also, the PNP and 
NFET can share the same well and an N+ diffusion.
Patent EP-0437665-A3 (EP)
Title: Device for controlling the damping fluid temperature in an offset printing machine
IPC: B41F7/24
Filed: 1990-03-24
Abstract: In a device for setting and keeping constant the temperature of the damping fluid in offset printing machines having one or more damping and printing units or inking units, the cooled damping fluid being taken from a damping fluid supply container, controlled to a desired temperature, fed via feed lines in each case to a damping unit case, taken from there by a feed damping roller and transferred by means of damping rollers, said damping unit case being connected to the damping fluid supply container via a return flow line, to achieve a high quality of control with rapid control characteristics a first partial circuit is provided which is formed from feed and return flow lines and is connected in terms of flow via a motor-controlled mixing device to a second partial circuit conducting cooled damping fluid. Provided for controlling the mixing device is a control apparatus which has a control circuit and a processor control unit which determines for each printing unit a control parameter in accordance with a program and depending on the measured temperature values of the damping fluid in the damping unit case and/or on the surface of a roller transferring the damping fluid, the desired value given and given interference vectors which may be affected. <IMAGE>
Patent EP-0398344-A3 (EP)
IPC: F16H61/16
Filed: 1990-05-17
Abstract: In an automatic transmission including an 
auxiliary gearing drivingly connected to a main 
gearing, the auxiliary gearing is shiftable between a 
high gear position wherein a direct clutch is engaged 
and a reduction brake is disengaged and a low gear 
position wherein the direct clutch is disengaged and 
the reduction brake is engaged. An one-way clutch is 
arranged to complement the action of the reduction 
brake. A shift valve which controls the auxiliary 
gearing is subject to a solenoid hydraulic pressure 
generated by an electro-hydraulic transducer 
including a solenoid. A reverse-select hydraulic 
pressure, generated by a manual valve when the manual 
valve is placed at reverse drive position, is 
directly applied to the shift valve to hold the shift 
valve at a low gear position wherein the direct 
clutch is disengaged and the reduction brake is 
engaged to condition the auxiliary gearing in the low 
gear position thereof.
Patent EP-0402867-A3 (EP)
Title: Apparatus for microwave processing in a magnetic field
IPC: H01J37/32
Filed: 1990-06-12
Abstract: A microwave-assisted plasma processing apparatus has a 
reaction chamber in which a substrate holder (13) is provided to support 
a substrate (1) to be treated. The holder is formed congruent with the 
inside of reaction chamber and located to substantially separate a 
reaction space (19) in the reaction chamber save for a narrow clearance 
therebetween through which exhausted gas passes from said reaction 
space into said auxiliary space. By this strucure, high density 
plasmas can be formed in the reaction chamber without substantial 
loss of input microwave energy.
Patent EP-0402892-A3 (EP)
Title: Process for producing allyl bromides
IPC: C07C21/14
Filed: 1990-06-13
Abstract: An improved process for producing allyl bromides by halogen 
exchange by reaction of an allyl chloride, with a metal bromide, 
wherein the reaction is conducted in an aprotic polar solvent. 
The allyl bromides obtained by the process of the invention are 
useful as intermediates for producing medicines, agricultural 
chemicals, dyes, and the like.
Patent EP-0406919-A3 (EP)
Title: Arrangement for electronically testing printed circuits with extremely fine contact-point screen
IPC: G01R31/28
Filed: 1987-07-08
Abstract: A circuit board testing device with a plurality of contact points (4) arranged in the plane of the contact field (2) of the device, which are connected to an electronic drive and measuring device and can be connected via test pins (6), which are rigid in the longitudinal direction, to the contact points of the wiring carriers/circuit boards (8) to be tested, the contact points being elastically supported in the circuit board testing device and are pressed against the contact pressure to be applied, the contact points (4) being constructed as electrically conductive compression springs (28) which are arranged in holes (25) of a spring contact field body (26) of electrically insulating material and against which the rigid test pins (6) are directly pressed. The invention provides that the spring contact field body (26) is constructed of segments which can be joined together in a row and that areas of different density of connection of contact points (4) exist in the contact field plane (2), the areas being mutually interchangeable depending on the requirements of the circuit board (8) to be tested. <IMAGE>
Patent EP-0388159-A3 (EP)
Title: Apparatus for sealing liquid within cavities
IPC: B01L3/00
Filed: 1990-03-14
Abstract: Apparatus for sealing liquid within cavities 
comprising a tray (20; 40; 60) a surface (20a; 40a; 
60a) of which has cavities (21; 41; 61) therein for 
storing liquid (A), the cavities (21; 41; 61) having 
openings (8; 47; 57) arranged at varying levels in 
the thickness direction of the tray (20; 40; 60); a 
flexible sealing member (9; 32; 67) which contacts the 
said surface (20a; 40a; 60a); and a pressure plate 
(29; 49; 51) for applying pressure to the sealing member 
(9; 32; 67) so as to force the latter against the said 
surface (20a; 40a; 60a) characterized in that the sealing 
member (9; 32; 67) is arranged to be forced by the pressure 
plate (29; 49; 51) into a position in which it seals 
each of the said openings (8; 47; 57) so as to prevent 
evaporation of liquid (A) in the said cavities (21; 
41; 61).
Patent EP-0395425-A3 (EP)
IPC: G03F1/00
Filed: 1990-04-26
Abstract: A mask includes a transparent layer (2) which 
is transparent with respect to a light which is used for 
an exposure, and a mask pattern layer (5) which is 
formed on the transparent layer. At least a portion of 
the mask pattern layer (5) is made up solely of a phase 
shift layer (3a) for transmitting the light, so that a 
phase shift occurs between a phase of the light 
transmitted through the phase shift layer and a phase of 
the light transmitted through a portion of the mask 
having no phase shift layer.
Patent EP-0396349-A3 (EP)
IPC: B32B17/10
Filed: 1990-04-27
Abstract: A sandwich glass having high ultraviolet 
ray-absorbing ability is produced by interposing a 
thermosetting resin between two glass plates to form a 
monolithic structure and thermosetting the resin layer, 
which thermosetting resin preferably uses a benzophenone 
or benzotriazole series compound as an ultraviolet 
ray-absorbing agent in a thermosetting resin comprising 
an ethylene-vinyl acetate copolymer, an organic 
peroxide, an acryloxy group-, methacryloxy group- or 
aryl group-containing compound, a silane coupling agent 
and an ultraviolet ray-absorbing agent.
Patent EP-0403237-A3 (EP)
IPC: B01D17/04
Filed: 1990-06-13
Abstract: A process for de-oiling mill scale which comprises 
   (a) collecting mill scale and analyzing for oil 
content; and then    (b) slurrying the portion of mill scale containing 
more than 0.5 weight percent oil in water to 
achieve an aqueous mill scale slurry having at 
least 25 weight percent solids content; and then    (c) high shear agitating the aqueous mill scale 
slurry to form a reduced oil mill scale suspension 
in an oily water emulsion; and then    (d) phase separating the reduced oil mill scale 
from the oily water emulsion forming a reduced oil 
mill-scale and an oily water emulsion; and then    (e) fresh water rinsing the reduced oil mill scale 
to form an oil-free mill scale and a waste wash 
water; and then    (f) recycling the waste wash water to form at least 
a portion of the aqueous mill scale slurry of step 
b; and then    (g) repeating steps (a) through (f) until the 
oil-free mill scale contains less than 0.5 weight 
percent oil; and then    (h) drying the oil-free mill scale for use to form 
sinter plant feed in the steel making process.
Patent EP-0453912-A3 (EP)
Title: Flame-resistant polysiloxane compositions
IPC: C08K13/04
Filed: 1991-04-13
Abstract: A flame-resistant, curable polyorganosiloxane composition is described which contains from 2 to 40 % by weight of hollow glass beads having an external diameter of up to 200  mu m, and from 3 to 50 % by weight of an inorganic intumescent material which expands at a temperature of from 80 DEG C to 250 DEG C. The preferred intumescent material is expandable graphite. The material can replace the materials employed hitherto, containing polyhalogenated diphenyl compounds, in fire-retardant glazing.
Patent EP-0492709-A3 (EP)
Title: Solid-state sensor device for the determination of the concentration of gases which can react with hydrogen
IPC: G01N27/407
Filed: 1991-12-14
Abstract: A solid-state sensor device for determining the concentration of gases which can react with hydrogen, in particular oxygen, is disclosed, which is essentially composed of a solid-state protonic conductor (CP-) in contact, on one of its sides, with a reference electrode (ER) and, on its other side, with a composite electrode (sensor electrode), constituted by a catalytic material (EC) into contact with a hydride of a metal or of a metal alloy (EI). <IMAGE>
Patent EP-0453185-A3 (EP)
Title: Ecl output buffer circuit
IPC: H03K19/086
Filed: 1991-04-11
Abstract: An ECL output buffer circuit for generating a stable 
predetermined output voltage over power supply, temperature 
and process variations and having a high speed of 
operation with low power consumption includes a differential 
pair formed of first and second input transistors 
(Q102, Q103), an emitter follower transistor (Q101), a 
first current source (112), and a second current source 
(114). The first current source is coupled to the base 
of the emitter follower transistor for generating a 
compensating current. The second current source is 
coupled to the emitters of the first and second input 
transistors for generating a gate current.
Patent EP-0508446-A3 (EP)
Title: Air conditioner for attic or the like
IPC: F24F13/32
Filed: 1992-04-10
Abstract: The object of this invention is to reduce the installation space required for an air conditioner installed in an attic, facilitating the installation work involved. An expandable/contractible duct 6 shaped into a sector in its longitudinal section is mounted to a body casing 3. The inside of the duct 6 is previously divided into suction and blowoff sides by a partitioning wall 7. Making use of the expansion and contraction characteristic of the duct 6, that is, widening or closing the sector-shaped duct 6 will allow the air conditioner to be installed correspondingly to how the roof is slanted. <IMAGE>
Patent EP-0519412-A3 (EP)
Title: Impact tool chuck
IPC: B23B31/173
Filed: 1992-06-17
Abstract: A tool chuck suitable for use with manual or powered impact drivers is described. The chuck comprises a body which carries a rotatable nut and a plurality of slidable jaws, driven by the rotatable nut. An anti-friction bearing is disposed between the rotatable nut and a bearing thrust ring mounted on the body. The bearing thrust ring has a plurality of detents and may cooperate with a compression spring to prevent the chuck from loosening during operation. <IMAGE>
Patent EP-0529511-A3 (EP)
Title: Mini cassette with linear indication device
Inventor: BARTH WOLFGANG GRUNDIG E M V M
IPC: G11B23/087
Filed: 1992-08-20
Abstract: Magnetic-tape cassettes for dictation equipment as specified in DIN 32750, part 1, have no tape-position indicator to make it easier to find a passage in a dictated text. There are nevertheless already various configurations of this magnetic-tape cassette with integrated tape-position indicator, which however are rather inaccurate for reasons of design and space. A description is given here of a tape-position indicator according to the invention which, in spite of the small space in the magnetic-tape cassette, ensures a significantly improved indication on a straight time-proportional scale. <IMAGE>
Patent EP-0556624-A3 (EP)
Title: Ampoule for liquids
Inventor: HAHN HANS-ULRICH
IPC: B01L3/00
Filed: 1993-01-30
Abstract: The present invention relates to an ampoule for liquids comprising an ampoule body (1), an ampoule neck (2) and a plug (3) for sealing the ampoule neck (2), characterised in that the plug (3) is connected via webs (4) to a sleeve (5) inverted over the ampoule neck (2), the sleeve in turn being connected to the ampoule body (1) via a screw thread (6). <IMAGE>
Patent EP-0584906-A3 (EP)
IPC: F02C7/18
Filed: 1993-06-11
Abstract: A film starter structure for a combustor of a 
gas turbine engine which includes a plurality of 
circunferentially spaced, axially extending ribs (40) 
formed on a radially inner surface of a forward 
section (30) of an outer combustor liner (36) adjacent a 
conbustor dome (16). An annular ring (42) overlays the ribs (40) 
for defining a plurality of air passages (44). A support (46) 
extends from the combustor dome and supports the 
outer liner about the dome. Compressor discharge 
air is introduced into the air passages (44) and exits 
the air passages along the inner surface of the 
outer liner (36) for establishing a cooling film barrier 
on the outer combustor liner surface. A spring seal (52) 
between the combustor dome (16) and the inner ring (42) seats 
the dome (16) within the ring (42) and establishes a seal for 
preventing leakage air therebetween and allowing 
independent radial expansion of the liner (36) and dome (16) 
by compressing the spring seal (52). The liner (36) and dome (16) 
structure are further arranged to allow assembly 
using flanges and split rings so as to eliminate 
placement of bolted connections in critical air flow 
paths.
Patent EP-0635838-A3 (EP)
Title: Voltage generation circuit.
Inventor: SAVIGNAC DOMINIQUE DR RER NAT
IPC: G11C5/14
Filed: 1994-06-28
Abstract: A voltage generator circuit includes a storage capacitor with a terminal for pickup of an output voltage. A voltage generator device which can be turned on and off has an output being connected to the terminal of the storage capacitor. A first comparator device which can be turned on and off compares the output voltage with a first threshold voltage and generates a signal for turning the voltage generator device on and off. A second comparator device compares the output voltage with a second threshold voltage and generates an output signal with which the first comparator device is turned on and off.
Patent EP-0657177-A3 (EP)
Title: Device for testing and controlling of steam sterilizers working according to vacuum process.
Inventor: BRINK MARIA
IPC: A61L2/26
Filed: 1994-12-01
Abstract: When operating steam sterilisers, mainly in hospitals, it is customary to control the efficiency of the devices using chemical colour indicators which are subjected to a sterilisation process when placed in test bodies or systems in the sterilising chamber. The object of the invention is to provide a device which cannot give falsified test and control results and is reusable. This is achieved in that the container (1) consists integrally of a material which is impermeable to gas and liquid and has no lines or regions of weakness. The thermal insulation on the inner side of the bottom guarantees longer resistance to harmful air and thus effectively prevents the contact of steam with the chemical colour indicator. The container (1) and the filler material (8) are reusable owing to their design and material. <IMAGE>
Patent EP-0648996-A3 (EP)
Title: Target for darts.
Inventor: MENKE WILHELM
IPC: F41J5/052
Filed: 1991-02-08
Abstract: The dartboard comprises a disc divided by radial spokes (1) and concentric hoops for defining a number of fields, each incorporating a spring-loaded, axially displaced segment (4) and a contact plate (9) with contacts indicating a strike of the respective segment (4). The latter has at least one attached pin (11) brought into contact with the contact plate (9) upon its axial displacement in response to a strike, with a rubber mat (10) between the rear of the segment (4) and the surface of the contact plate (9). An adapter plate (12) fits between the rubber mat (10) and the rear of the segment (4) incorporating bores for each of the pins (11), guiding the axial movement of the latter.
Patent EP-0642039-A3 (EP)
Title: Improved method of forming shaped hydrogel articles including contact lenses using inert, displaceable diluents.
Inventor: NUNEZ IVAN M
IPC: C08L71/02
Filed: 1994-07-21
Abstract: Shaped hydrogel articles such as soft contact lenses are prepared by the steps of:     (1) molding or casting a polymerization mixture comprising:   (a) a monomer mixture comprising a major proportion of one or more hydrophilic monomers such as 2-hydroxyethyl methacrylate, and one or more cross-linking monomers; and (b) an inert, displaceable diluent selected from the group consisting of:     (i) ethoxylated alkyl glucoside;   (ii) ethoxylated bisphenol A;   (iii) polyethylene glycol;   (iv) mixture of propoxylated and ethoxylated alkyl glucoside; (v) single phase mixture of ethoxylated or propoxylated alkyl glucoside and C2-12 dihydric alcohol; (vi) adduct of  epsilon -caprolactone and C2-6alkanediols and triols;     (vii) ethoxylated C3-6alkanetriol; and   (viii) mixtures of one or more of (i) through (vii), under conditions to polymerize said monomer mixture to produce a shaped gel of a copolymer of said monomers and said diluent; and   (2) thereafter replacing said diluent with water. xt
Patent EP-0683322-A3 (EP)
Title: Pump unit.
Inventor: HOLZHEIMER GUENTHER DIPL ING F
IPC: F04C19/00
Filed: 1995-05-08
Abstract: The pumping set comprises a drive motor to which is coupled a fluid ring pump (5). At least beneath the shaft height of the pump extends a prodn. container (1) connected beyond the pumping set as a flow unit. The outlet connection (14) of the ring pump is connected with an inlet (7) of the prodn. container, which furthermore is provided with an outlet aperture (8) forming the outlet of the pumping set. The cross-section of the prodn. container has the shape of an upright L or U. The pumping set is arranged on the horizontal part (3) of the prodn. container, on which the inlet of the prodn. container is provided. <IMAGE>
Patent EP-0699694-A3 (EP)
Title: Comb polymers
Inventor: AUSCHRE CLEMENS DR
IPC: C08F290/04
Filed: 1995-08-30
Abstract: Comb polymers are derived from macromonomers of formula (I): X-ÄCH2CH2Üa-ÄCH2CHR1Üb-ÄCH2CR2R3Üc-B (I) X = residue of initiator, pref. 1-50 C alkyl residue; R1 = 1-18 C (pref. 1-10 C, most pref. 1-4 C) alkyl; R2, R3 = 1-8 C alkyl; B = 3-12 C alkene end gp.; a = 0 mol.% if c is more than 0 mol.%; a+b = 100 mol.% of the monomers in (I), with a ≤ 80 mol.%, or b+c = 100 mol.% of the monomer in (I); if a = 0, R1 becomes R1' (R1' = 2-18 C alkyl); by (a) converting the end gp. -B into a corresp. protic gp. -A-OH (cpd. (II)) using known methods., (b) acylating the intermediate with a reagent contg. a (meth)acryloyl gp. to give the corresp. macromonomer (IV) with an end. gp. of formula -A-O-CO-CR4=CH2 (R4 = H or Me), and (c) radical copolymerising (IV) with monomers selected from 1-28 C alkyl (meth)acrylates, functional comonomers, vinyl esters of fatty acids and vinylaromatics.
Patent EP-0718989-A3 (EP)
Inventor: LEMBO LAWRENCE J
IPC: H04B10/06
Filed: 1995-09-27
Abstract: An optical communication link having an overall linear transfer
characteristic and high dynamic range suitable for transmitting analog signals. The link
includes an optical intensity modulator, such as a Mach-Zehnder modulator, biased to
a low-bias point to reduce noise, and a detector that performs optical heterodyning to
recover a transmitted modulating signal. Heterodyning produces a beat frequency signal
and sidebands that contain the same information as the modulating signal, but without
second-harmonic distortion components. Use of the low-bias point is known to reduce
noise and increase dynamic range, but only at the expense of second-harmonic distortion
because the modulator output is a function of the square of the modulating signal.
Although second harmonics can be filtered out, the bandwidth of the modulating signal
is then limited to less than an octave. In the communication link of the invention,
heterodyning produces sidebands that vary with the square root of the modulator
transmission characteristic. Therefore, the overall transfer characteristic is substantially
linear, second harmonic distortion is eliminated, and the modulating signal can extend
over a multi-octave bandwidth.