baber/WOPTO huggingface dataset:
Patent EP-0329895-A3 (EP)
Title: Hanger and seal assembly
IPC: F16J15/06
Filed: 1988-11-24
Abstract: The improved structure of the present invention includes a hanger (10) having a landing seat (16) for engaging the landing seat (18) within a wellhead housing (14), a hanger holddown ring (24), an external sealing surface spaced from the internal sealing surface of the housing to form the annulus to be sealed, a seal assembly (12) including a seal body (100) having external metal seal legs (102, 104) diverging outward but having a free diameter less than the diameter of the housing internal sealing surface and internal metal seal legs (106, 108) converging inwardly and having a free diameter smaller than the diameter of the hanger external sealing surface, a lower body (110) movably connected to the seal body and having an upstanding rim (118) engaging the lower outer seal leg, an upper body (112) movably connected to the seal body, a loading ring (136) surrounding the upper portion of the seal body and engaging the upper outer seal leg, means (153) for securing said seal assembly to said hanger after said seal assembly has been set in loaded sealed position and means for retaining said loading ring against the upper outer seal leg to latch said seal assembly in loaded sealed position. In a modified form the seal body includes an upper outer seal leg extending upwardly and outward and having a free diameter less than the internal sealing diameter of the housing and a lower outer seal leg extending upwardly and having a free diameter larger than the internal sealing diameter of the housing and this form does not have a lower body or upper rim supporting the lower outer seal leg. It does have the means for loading the upper outer seal leg and the latch to retain the seal assembly in sealing position.
Patent EP-0294253-A3 (EP)
Title: Thermoplastic compositions, process for their preparation and their application in obtaining industrial objects
IPC: C08F8/50
Filed: 1988-05-05
Abstract: The compositions contain a) less than 90% and at least 2% by weight of at least one ethylene polymer (A), and optionally, at least one  alpha -olefin having from 3 to 12 carbon atoms, said polymer containing at least 70% in moles of patterns derived from ethylene, and b) more than 10% and up to 98% by weight of at least one polymer (B) containing at least 85% in moles of patterns derived from at least one  alpha -olefin having from 3 to 12 carbon atoms and at the most 15% in moles of patterns derived from ethylene, and are characterized in that the polymer (A) is a modified polymer of which the measured limit viscosity is comprised between 1.3 and 100 times its limit viscosity calculated from the distribution of molecular masses. The compositions are obtained by a process consisting in providing a polymer of ethylene and, optionally, of at least one  alpha -olefin having from 3 to 12 carbon atoms in the presence, on the one hand, of at least one initiator of free radicals in a quantity comprised between 0.001 and 0.3 parts by weight of the initiator for one hundred parts by weight of said polymer at a temperature higher than the melting temperature of said polymer during a time at least equal to one tenth of the half life time of the initiator at the temperature considered, and, on the other hand, of at least one polymer (B). Application to the production of industrial articles by extrusion-blowing of sheaths or hollow bodies, extrusion of films by means of flat dies, roto-moulding, injection or coating.
Patent EP-0324348-A3 (EP)
IPC: A61P9/00
Filed: 1989-01-03
Abstract: (±)-1-[4-[Ethyl[2-(4-methoxyphenyl)-1-methylethyl]amino]-1-­
oxobutyl]-N,N-dimethyl-4-piperidincarboxamid und (+)-1-[4-­
[Ethyl[2-(4-methoxyphenyl)-1-methylethyl]amino]-1-oxobutyl]-­
N,N-dimethyl-4-piperidincarboxamid, des weiteren die physio­
logisch verträglichen Säureadditionssalze dieser Verbindun­
gen eignen sich zur Behandlung von Bradycardien und Bradyar­
rhythmien.
Patent EP-0336082-A3 (EP)
Title: A perforated dental post system
IPC: A61C8/00
Filed: 1989-02-16
Abstract: A perforated dental post system is provided for anchoring 
a crown to the root of a tooth. This post (10) consists of a shank (12) 
with a spiral thread (14) running lengthwise thereof. Serrations (16) 
are provided on the shank (12). Flanges (17) are provided at the upper 
end of the post (10). A central bore (18) runs lengthwise of the post, 
and spaced transverse or perpendicular cross bores (20) are provided 
in the post. When the bores (18, 20) are filled with cement (28) and the 
outer wall of the post is coated with cement, the post (10) can be 
anchored to the tooth root (22) and to the crown (30). In a second 
embodiment of the dental post, a plurality of longitudinally 
extending grooves (52) are provided in the surface of the post 
together with a plurality of shallow longitudinally and 
radially extending bores (54). When the various bores and grooves 
are filled with cement, they can be used to anchor the post in 
a tooth.
Patent EP-0356959-A3 (EP)
Title: Tracking error detecting circuit
IPC: G11B15/467
Filed: 1989-08-28
Abstract: An information signal comprised of a video component 
and a tracking information component which has been recorded in 
parallel oblique tracks (TA1,TA2,TB1,TB2) on a record 
medium (5) is reproduced by plural transducers (6) which scan 
successive tracks. The tracking information component is 
separated from the reproduced information signal to derive 
error detection signals (S3) representing scanning errors of 
the transducers (6). Plural ones of the error detection 
signals (S3 A1 ,S3 B1 ,S3 A2 ,S3 B2 ) are averaged to produce tracking 
control signals (S5).
Patent EP-0327192-A3 (EP)
Title: Methods and apparatus for fabricating a high purity thermally-conductive polymer layer
IPC: B29C39/42
Filed: 1989-01-05
Abstract: Thermal transfer between a semiconductor wafer 
and a platen during vacuum processing is provided 
through a soft, thermally-conductive polymer layer 
having a thin, hard surface film. The soft polymer 
layer, which is preferably silicone rubber 
containing thermally-conductive particles, conforms 
to surface irregularities on the wafer and has low 
thermal resistance. The surface film is preferably 
silicon dioxide in the form of a multiplicity of 
flat plates integrally formed on the silicone 
rubber. Adherence of the water and of foreign 
matter to the polymer layer is prevented by the 
surface film. In addition, the underlying polymer 
layer is protected by the surface film. A high 
purity polymer layer is fabricated by evacuating the 
mold cavity and the resin container prior to 
injection of resin. The mold for the polymer layer 
utilizes a hard, smooth mold release surface and a 
resilient gasket between the platen and the mold 
release surface. The gasket establishes 
the dimensions of the polymer layer and seals the 
mold cavity. The surface film is formed by oxygen 
plasma treamtent of the silicone rubber layer.
Patent EP-0327391-A3 (EP)
IPC: C07H21/04
Filed: 1989-02-03
Abstract: A polypeptide possessing isoamylase activity with a 
revealed amino acid sequence. The polypeptide has features 
that it acts on amylaceous substances to produce a high-maltose 
content product, and that it has a molecular weight of 
80,000±5,000 daltons on SDS-polyacrylamide gel electrophoresis, 
as well as having an isoelectric point of 4.7±0.1 on poly­
acrylamide gel isoelectric electrophoresis.  
     The polypeptide can be advantageously used in 
industrial uses.
Patent EP-0341057-A3 (EP)
Title: Sound absorption barriers
IPC: G10K11/16
Filed: 1989-05-04
Abstract: The present invention aims at providing a sound barrier member that will enable a sound barrier to be constructed that provides good prevention of sound transmission as well as prevention of sound reflection while remaining relatively inexpensive to produce, the sound barrier member comprising an enclosure in a generally panel like configuration having a rectangular outer perimeter adapted to engage with other similar members to produce a sound barrier, the enclosure being formed by a front panel (10) and a rear panel unit (16) defining an enclosed space therebetween, the front panel (10) having a plurality of openings (12) in a desired shape and array allowing sound transmission into the enclosed space, a sound absorbing material (25) being positioned in the enclosed space overlying at least the openings in the front panel (10) and being spaced forwardly of the rear panel unit (16), the sound absorbing material (25) having at least one sound absorbing batten (28,29) of fibreglass mat construction and a layer of solid plastics material (31) on a rearward face of at least one batt (batten) whereby a space is left between the layer of solid plastics material and the rear panel unit (16).
Patent EP-0365265-A3 (EP)
Title: Framing algorithm for bit interleaved time division multiplexer
IPC: H04J3/16
Filed: 1989-10-17
Abstract: Methods are provided for multiplexing a plurality of 
channels onto a sub-aggregate of and aggregate line so as to 
substantially minimize total frame length. In a preferred 
method, channel data rates are expressed as a sum of a 
plurality of predetermined subchannel data rates, and the 
number of times each predetermined subchannel data rate is 
used to express a channel data rate of a channel to be 
multiplexed is accumulated. Given a predetermined primary 
frame rate (P) such as 8Khz for a DACS compatible multiplexer, 
and a tertiary frame rate (T) chosen as the greatest common 
denominator of the subchannel data rates, an optimal secondary 
frame rate (S) may be found by minimizing for a plurality of 
different secondary frame rates the sum of (P/S)F1 plus 
(S/T)F2, where F1 represents the number of calls of the 
primary frame to the secondary frame, and F2 represents the 
number of calls of the secondary frame to the tertiary frame. 
Where different primary frame rates may be used, the sum of 
(A/P) plus (P/S)F1 plus (S/T)F2 is minimized to find primary 
and secondary frame rates which will permit an optimally small 
total frame length, given the sub-aggregate rate A.
Patent EP-0366469-A3 (EP)
Title: Phosphorus containing enzyme inhibitors
IPC: C07F9/30
Filed: 1989-10-26
Abstract: Dipeptides which contain phosphorus and 
their pharmaceutical use and preparation are 
disclosed. The compounds have dehydropeptidase (DHP) 
enzyme inhibitor activity.
Patent EP-0365414-A3 (EP)
IPC: B29C67/24
Filed: 1989-10-16
Abstract: L'invention consiste à déposer, sur le fond 
(22) d'un moule (10), une couche (24) d'un produit fluide 
telle qu'une peinture électroconductrice auto-démoulante, 
puis à placer sur cette couche (24) un élément de renfort 
(20) tel qu'un mat de verre et à injecter ensuite dans la 
cavité de moulage (18) une matière polymérisable chimi­
quement compatible avec ladite peinture. Dans le produit 
fini, la couche superficielle (24) permet de masquer la 
structure de l'élément de renfort (20), et d'obtenir des 
pièces moulées de carrosserie ayant un bon aspect exté­
rieur.  
     L'invention s'applique notamment à la fabrica­
tion des pièces de carrosserie automobile.
Patent EP-0334828-A3 (EP)
Title: Combustion apparatus
IPC: F23J15/00
Filed: 1989-03-23
Abstract: A combustion apparatus has a combustion chamber 
(10), a reactor space (11) and a convection part (12) 
disposed downstream thereof. The reactor space is 
provided in a high-temperature zone of the combustion 
apparatus and has a turbulence or gas-agitation pro­
moting design or built-in structure (17). Injection 
devices (19, 20) open into the reactor space. The 
fluid flow design of the reactor space is such that 
the combustion gases will have a residence time of 
at least 0.3 s in the reactor space.
Patent EP-0356408-A3 (EP)
Title: A hydraulic steering system for electrically driven motor vehicles
IPC: B62D5/07
Filed: 1989-08-02
Abstract: A hydraulic control system for, e.g., electrically 
driven vehicles, comprising a hydraulic, double-acting 
steering piston-cylinder device which co-acts with a 
control unit which is actuable by means of a steering 
member, and which is connected to a hydraulic pump, 
driven by an electric motor, and to a tank, and which 
includes a control signal outlet through which a control 
signal is delivered for maintaining and interrupting the 
supply of steering hydraulic fluid to the steering-­
piston cylinder device. In order to enable the vehicle 
to be steered directly, even when the pump is not acti­
vated, an accumulator (20) is provided in the hydraulic 
connection (12) between the pump (11) and the control 
unit (8), at a location between two counter-directional 
check valves (17, 19) which prevent the flow of hydrau­
lic fluid from the accumulator (20) and of which valves 
the valve located upstream of the accumulator (20) is 
intended to open in response to the control signal 
delivered by the control unit (8), this control signal 
constituting a pressure increase, so as to permit hy­
draulic fluid to flow from the accumulator (20) to the 
steering piston-cylinder device (1). The system also 
includes means (39, 40) operative to start the pump 
motor (13) upon the occurrence of a pressure decrease in 
the hydraulic connection (12) between the two check 
valves (17, 19), therewith to provide the requisite flow 
of hydraulic steering fluid through the action of the 
pump (11).
Patent EP-0385134-A3 (EP)
Title: Method for the resynchronisation of a clock signal
IPC: H04L7/033
Filed: 1990-02-05
Abstract: A clock signal (fs) is resynchronised to a reference clock (fR) by means of a phase-locked loop which has a particular loop gain. If the loop gain is large, frequency differences between the clock signal and reference clock will not overdrive the phase discriminator (PD) of the phase-locked loop during the settling process but phase discontinuities are forwarded almost undamped to subsequent receivers of the clock signal. The novel method provides a possibility of slowly correcting for the phase discontinuities occurring at the input of the phase-locked loop during the resynchronisation of an exchange but quickly correcting frequency discontinuities. Before resynchronisation is started, the system checks whether essentially a phase discontinuity or a frequency discontinuity is present at the input of the phase-locked loop. If a frequency discontinuity is present, the resynchronisation is started with a high loop gain whereas a small loop gain is used when a phase discontinuity is present. <IMAGE>
Patent EP-0394949-A3 (EP)
Title: Process for producing allylsubstituted phenol compound and the product
IPC: C07C37/055
Filed: 1990-04-24
Abstract: A process for producing an allyl-substituted 
phenol compound is described, which comprises a combi­
nation of a first step in which a phenol is reacted with 
an allyl halide in the presence of an alkaline aqueous 
medium to allyl-etherify the phenol and a second step in 
which the reaction product obtained in the first step 
and containing the allyl-etherified phenol is subjected 
to a Claisen rearrangement reaction in the absence of a 
medium. Also, a compound obtained by the above process 
is described.
Patent EP-0408956-A3 (EP)
Title: Vaned impeller
IPC: F04D29/28
Filed: 1990-06-30
Abstract: In order to improve the exchange of energy between cooling and heating processes a vaned impeller is proposed, the vanes 2 of which consist of a hollow profile open in the direction of rotation, which in the area close to the hub has an axial inlet expansion 5 on the admission side and is provided on the outside end with a radial outlet aperture 6 together with a baffle element 7 curved in the direction towards the outflow side. In this way a spiral, radial flow behaviour is produced by means of which a high volume or mass flow circulation rate is achieved at low speed.
Patent EP-0393812-A3 (EP)
Title: Hue control for colour video systems
IPC: H04N9/64
Filed: 1990-02-01
Abstract: A hue control circuit receives a video signal at an input 
terminal (10) in the form of alternating multiplexed colour difference 
samples Cb and Cr. The video signal is multiplied in a multiplier (14) 
by a factor cos,  representing a desired hue adjustment, and the 
resulting multiplied signal is supplied to an adder (20). The video 
signal is also subjected to order inversion by flip-flops (22,24) and a 
buffer circuit (28) as a result of which the order of corresponding pairs 
of samples Cb and Cr is reversed. The reversed-order video signal is 
multiplied in a multiplier (26) by one of alternating factors -sin and 
+sin, and the resulting multiplied signal is supplied to the adder (20). 
The multiplied signals are summed in the adder (20) to produce hue 
adjusted colour difference samples Hb and Hr, where:  
Hb = Cbcos - Crsin  
and Hr = Cbsin + Crcos.
Patent EP-0416815-A3 (EP)
Title: Constrained geometry addition polymerization catalysts, processes for their preparation, precursors therefor, methods of use, and novel polymers formed therewith
IPC: C08F4/44
Filed: 1990-08-30
Abstract: One or more addition polymerizable monomers are polymerized by catalysts comprising a metal monocyclopentadienyl coordination complex and an activating cocatalyst to form novel polymers, including atactic amorphous poly(alpha-olefins), elastic polyethylenes and pseudo-random copolymers.
Patent EP-0419427-A3 (EP)
Title: A device for fitting seals automatically into the seating grooves of thermoplastic pipe sockets
IPC: B23P19/02
Filed: 1990-09-21
Abstract: A device (16) for seating seals (6) automatically in the grooves (14) afforded by the sockets (3) of plastic pipes (4) comprises a straight tubular element (1) offered immediately adjacent to and in alignment with the pipe socket (3) and serving to support and position a seal (6) of outer diameter greater than the internal diameter of the socket, a plunger (7) capable of sliding movement internally both of the tubular element and of the socket, by which a seal positioned in the tubular element is inserted into the groove (14), and actuators (10) by which the plunger is reciprocated automatically.
Patent EP-0454181-A3 (EP)
Title: Air treatment module for the realisation of an installation for ventilating and air conditioning a plurality of rooms
IPC: F24F3/052
Filed: 1988-07-05
Abstract: Associated with each room (1, 2, 3) to be air-conditioned is a respective air conditioning module (5, 6, 7) which is structurally and functionally independent, accommodated in a technical room (4) which is common to the different air conditioning modules (5, 6, 7), and remote-controlled, independently of the other air conditioning modules (5, 6, 7), from the respectively associated room (1, 2, 3); preferably, the modules (5, 6, 7) are suspended, in a mutually juxtaposed state, in the technical room (4). 
<??>Such an installation satisfies hygiene and comfort requirements on the one hand and those of ease of maintenance on the other hand, while having minimum bulk. 
<IMAGE>
Patent EP-0468435-A3 (EP)
Title: Dental ceramic composition for titanium prostheses
IPC: A61K6/00
Filed: 1991-07-23
Abstract: A dental ceramic material that can be fused with high bonding strength to dental prostheses including crowns, bridges, or prostheses parts made of titanium or titanium alloys is disclosed. The ceramic material requires the presence of B2O3 at between 8 and 17 weight percent and this concentration range is directly responsible for the high bonding strength attained.  In addition, the material fulfills the esthetic requirements necessary to achieve natural appearing tooth colors and stains in dental restoratives when bonded to titanium or titanium alloys.  The ceramic material may be prepared as a dental powder or as a suspension or paste and if the suspension or paste contains polymerizable compounds the suspension or paste can be self-cured or cured by visible light.
Patent EP-0459555-A3 (EP)
Title: Loading device for dynamic weighing machines
IPC: G01G19/03
Filed: 1991-05-08
Abstract: A loading device for dynamic weighing machines having a weighing plate (4; 130) along which the objects (5; 102) to be weighed are made to transit at constant speed comprises an intermediate support (1; 101) with a degree of freedom in the vertical direction, for supporting the object (5; 102) to be weighed, and lowerly provided with at least one means (7; 111) for slidably bearing on the weighing plate (4; 130) with linear or point contact. <IMAGE>
Patent EP-0494513-A3 (EP)
Title: Telecommunications network restoration architecture
Inventor: ASKEW JAMES D
IPC: H04M3/22
Filed: 1991-12-10
Abstract: A restoration system is provided for enhancing the reliability of a telecommunications network (200) such that particular traffic which is disrupted by, for example, a faulty link, (e.g. 103) may be quickly rerouted via an alternate route established "on the fly". In particular, each node (100-1 to 100-9) and link (101 to 111) forming the network is monitored, and in the event that such monitoring detects a faulty link or node then a central controller is notified. The controller is arranged to locate spare capacity and establish an alternate route, (e.g. 102, 106, 107, 104) in which the continuity of the alternate route is confirmed before the disrupted traffic is transferred thereto.
Patent EP-0579144-A3 (EP)
Title: A display apparatus and a method for making the same
IPC: G02F1/1339
Filed: 1993-07-10
Abstract: A display apparatus has two plates (11), and an intermediate 
member (12) disposed between the two plates (11). The two plates 
(11) are bonded by way of the intermediate member (12). A liquid 
is sealed in a gap or space defined by the blades (11) and the 
intermediate member (12). The two plates (11) are bonded by 
means of a fluorocarbon resin or a fluorine contained resin 
having an alkoxide as a reaction group.
Patent EP-0581220-A3 (EP)
Title: Process for preparing cephalosporin intermediates
Inventor: LIM GARY M F
IPC: C07F7/18
Filed: 1993-07-23
Abstract: The present invention provides a process for the preparation of, stable, crystalline cephalosporin intermediates of the formula <CHEM> wherein X is HI, HCl or H2SO4 which are substantially free of the DELTA <2> isomer, and which are convertible into broad-spectrum cephalosporin antibiotics.
Patent EP-0605070-A3 (EP)
Title: Method for cash sum transfer into and from smart cards.
Inventor: ENDLER REINHARD
IPC: G07F7/10
Filed: 1993-12-13
Abstract: 2.1 Known methods are based on the idea that debiting and crediting exchange functions operate independently of each other. The solution according to the invention is based on the object of combining the advantages of crediting exchange with the advantages of debiting exchange. 2.2 According to the invention, overwritable memory areas of a smart card are divided up into a memory area for crediting exchange functions and at least one memory area for debiting exchange functions. Using the application program of the smart card, together with the program of an authorization system, a cash sum from the crediting exchange is transferred, once or repeatedly in succession, into the debiting exchange. 2.3 By the solution according to the invention, the user of the service is able by means of just one multifunctional smart card to fill the debiting exchange of the smart card at any time from the credit afforded him in the crediting exchange.
Patent EP-0632381-A3 (EP)
Title: Fault-tolerant computer systems.
Inventor: TAYLOR RICHARD NORCOTT
IPC: G06F15/177
Filed: 1994-04-22
Abstract: A computer system comprises a number of replicated units. At least two of the units include monitoring components for monitoring the status of the system. The monitoring components communicate with each other to exchange status information, so as to enable both of the monitoring components to form a combined view of the status of the system, based on information gathered by both of the monitoring components. This enables each monitoring component to locate faults more precisely, and thus enables more appropriate recovery action to be taken.