baber/WOPTO huggingface dataset:
Patent CA-2007692-A1 (CA)
Title: Active fiber for optical signal transmission
Inventor: GARMAN JONATHAN D
IPC: H04B10/2581
Filed: 1990-01-12
Abstract: An improved optical fiber is disclosed having particular application for use in a fiber optic communication system. The optical fiber includes an optically transparent core which is doped with a lasing material of the same type used in the diode laser transmitter of the particular communication system.The lasing dopant has the greatest density in the center of the core, and is diffused outward into an optically transparent cladding surrounding the core which has an index of refraction lower than an index of refraction of the core. The optical fiber is "pumped" such that the lasing dopant within the fiber lasesat a desired wavelength and provides gain for the original optical signal provided by the diode laser.  The lasing of the dopant material within the fiberresults in continuous optical gain along the length of the fiber and avoids the need for repeaters in the fiber optic communication system. Various pumping embodiments are disclosed including coating the outside of the cladding with a light emitting material, such as radium fluorescent paint, and providing a reflector on the outer surface of the fiber to reflect light generated by the radium through the cladding and into the core to achieve lasing. An alternate embodiment is disclosed in which an electroluminescent material coats the outer surface of the cladding, such that upon the application of voltage along the length of the fiber, the electroluminescent material generates photon energyand pumps the dopant within the core to achieve lasing.
Patent CA-2008039-A1 (CA)
Title: Subsea electrical conductive insert coupling
Inventor: MOHN FRANK
IPC: E21B33/038
Filed: 1990-01-18
Abstract: ABSTRACT         Apparatus for coupling a subsea module to an uymbilical termination head from a subsea installation which comprises a receiver (14) mounted on the module, a receiver (15) mounted on the umbilical, and a conductive insert coupling (CIC) (13).  The receivers (13,14) each have electrical terminal sets (24,25). the CIC (13) has a pair of spaced electrical terminal sets (22,23) in which respective terminals in each set are electrically connected by concentric conductive tubes.  The receivers (14,15) are arranged to receive the CIC (13) so that when it is in position in the receivers (14,15), each of the CIC terminal sets (22,23) contacts on of the receiver terminal sets (24.25) thereby forming an electrical connection between the two receiver terminal sets (24,25).     (Figure 5)
Patent CA-2008749-A1 (CA)
Inventor: WANLASS FRANK
IPC: H03K3/3565
Filed: 1990-01-29
Abstract: A TTL to CMOS buffer circuit includes a relatively high-speed first inverter path and a second relatively low-speed inverter path connected to the first path and effective to control the operation of the first path inverter so that short-duration positive- or negative-going noise pulses of amplitude up to 2.4 volts do not incorrectly affect the output level.
Patent CA-2008856-A1 (CA)
Title: Tocols as adjuvant in vaccine
Inventor: CORNELIUS LAMMERT
IPC: A61K31/355
Filed: 1990-01-30
Abstract: Oil based vaccines often cause serious local side effects at the site of administration and/or have a high viscosity which make said vaccines difficult to handle.      Vaccines comprising as an adjuvant a stable emulsion of tocols in water do not display these undesired effects and induce good immune responses.
Patent CA-2009383-A1 (CA)
Title: Method of producing new flame-retardant thermostable homopolyimides, these homopolyimides, a moulded article obtained therefrom and a fibre produced from these homopolyimides
Inventor: SEIDL SIGRID
IPC: C08G18/34
Filed: 1990-02-06
Abstract: ABSTRACT OF THE DISCLOSURE            To produce flame-retardant thermostable new homopolyimides having structural units of the general formula   by reacting 3,3',4,4'-benzophenone tetracarboxylic acid dianhydride with an overall equimolar amount of 2,4- and/or 2,6-toluylene diisocyanate, the reaction is carried out in the presence of a polymerization accelerator. The new homopolyimides have a glass transition point of at least 320°C and are processible to moulded articles exhibiting a similarly good structural strength as could hitherto be observed in mixed polyimides only. Furthermore, the new homopolyimides can be spun to fibres.
Patent CA-2010227-A1 (CA)
Title: Phlegmatized red phosphorus
Inventor: STAENDEKE HORST
IPC: C08K9/04
Filed: 1990-02-16
Abstract: Phlegmatized red phosphorus Abstract:          Phlegmatized, pulverulent red phosphorus with good free-flowing properties comprises 95 to 99.95 % by weight of red phosphorus having a particle size of up to 2 mm, and 0.05 to 5 % by weight of polyurethane as phlegmatization agent.            This red phosphorus is prepared by introducing an aqueous polyurethane dispersion into an aqueous suspension of red phosphorus having a particle size of up to 2 mm, after a pH of from 5 to 9 has been set,  in a manner such that 5 to 0.05 parts by weight of polyurethane are present per 95 to 99.95 parts by weight of red phosphorus, then stirring the mixture at a temperature of from 20 to 90°C for 0.5 to 3 hours,  and finally drying the phlegmatized red phosphorus at elevated temperature after filtration.
Patent CA-2010743-A1 (CA)
Title: Printed circuit board capable of preventing electromagnetic interference
Inventor: NAKAGAWA KATSUYA
IPC: H05K1/02
Filed: 1990-02-22
Abstract: A printed circuit board includes a first electric conductive layer formed on an insulating base plate to form signal patterns and a ground pattern. An insulation layer covering the signal patterns and a second electric conductive layer connected to the ground pattern are sequentially formed on the plate. A large area ground land is formed in the vicinity of a ground terminal of a digital IC by the first electric conductive layer to be connected to the ground terminal, which is directly surface-connected to the second electric conductive layer so that a ground impedance of the ground terminal can be reduced. A large area power source land connected to a power source terminal of the digital IC is formed in the vicinity of the power source terminal by the first electric conductive layer, which sandwiches the insulation layer in cooperation with the second electrostatic conductive layer so that an electrostatic capacitance larger than a line-to-line distribution capacitance formed by the signal patterns can be formed between the power source land and the second electric conductive layer.
Patent CA-2010923-A1 (CA)
IPC: A01D46/22
Filed: 1990-02-26
Abstract: This  invention  provides  a  fruit  picker's  bag  (10) including a support  frame  (20) having a top hoop with a rear section (22) with opposite ends, a strap eye (16, 18) at each of the ends, a forward section (24) extending from one end of the rear section (22) over to the opposite end which together with the rear section  (22)  defines a hoop opening,  and  brace  portion  (26) which  extends  generally vertically  downwardly  from  the  rear  section  (22).   A fruit-receiving bag body  (30)  is  detachably  connected  to the support frame (20).  The bag has upper and lower ends and a rear wall portion  (36) which includes a pocket (34) at the upper end for receiving the brace portion  (26)  of the  support  frame  (20).   A  forward  wall  portion  (40) includes a hook strip (38) connected at the upper end.  The hook strip  (36)  includes a downwardly opening hook channel (50) which is hookable onto the forward section (24) of the top hoop.  A carrying harness  (14)  includes a strap which extends  through  each  of  the  strap  eyes  (16,  18).   The carrying harness serves to support the fruit picker's bag (10)  on a person  (12)  with the  top hoop of  the support frame  (20)  in  a  substantially  horizontal  plane  and  the brace  portion  (26)  of  the  support  frame  (20)  against  a midsection of the person (12).  The bag body (30) may also be padded with a resilient padding material (66) to prevent damage to picked fruit.
Patent CA-2011935-A1 (CA)
Title: Dual-path computer interconnect system with four-ported packet memory control
Inventor: AWISZIO DESIREE A
IPC: H04L12/56
Filed: 1990-03-12
Abstract: DUAL-PATH COMPUTER INTERCONNECT SYSTEM     WITH FOUR-PORTED PACKET MEMORY CONTROL     ABSTRACT OF THE DISCLOSURE A computer interconnect system uses packet data transmission over serial links connecting nodes of a network. The serial links provide simultaneous dual paths for transmit/receive. An adapter couples a CPU or the like at a node to the serial link. The adapter includes a packet memory for temporarily storing transmit packets and receive packets, along with a port processor for executing the protocol. Packets of data are transferred between the system bus of the CPU and the packetmemory by a pair of data movers, one for read and one for write. The packet memory is accessed upon demand by the serial link, the port processor and the data movers, using interleaved cycles. To accommodate this access upon demand withoutrequest/grant cycles, parking registers are provided to store read or write data until a later cycle, and the data rate on the packet memory port is high enough to allow ample time for simultaneous use of both channels as well as packet processing and moving to and from the CPU.
Patent CA-2012059-A1 (CA)
Title: Transmission mounted solenoid interlock device
Inventor: SLAVIN MICHAEL
IPC: F16H61/22
Filed: 1990-03-13
Abstract: Abstract of the Disclosure An electrically controlled transmission shift interlock device.  The device provides interlock capability by locking the pivotable shift actuating lever which is operatively associated with  the  transmission.   A  transmission  mounted  solenoid  is provided having a moving armature coupled to a locking member which,  when  energized,  positions  the  locking  member  into interlocking engagement within an engaging notch provided in the shift actuating lever.   The device includes means for proper alignment of the interlocking components during installation of the  interlock  device  onto  the  transmission.   One  alternate embodiment  further  provides  means  for  having  interlocking capabilities at more than one gear shift lever position.  Another embodiment causes the transmission actuating lever to lock when the solenoid is de-energized and is movable upon energization.
Patent CA-2013322-A1 (CA)
Inventor: LESIEUR DANIEL
IPC: C07D413/06
Filed: 1990-03-28
Abstract: Composés de formule générale (I) : (I) dans laquelle : R1 représente un atome d'hydrogène ou un groupement alkyle inférieur, R2 représente : ? un radical alkyle inférieur éventuellement substitué par : - un ou plusieurs atomes d'halogène, - un groupement aryle ou hétéroaryle, ? un groupement aryle éventuellement substitué par : - un ou plusieurs atomes d'halogène, - un ou plusieurs groupements alkyles inférieurs éventuellement substitués par un ou plusieurs atomes d'halogène, - un ou plusieurs groupements alkoxy inférieurs, ? un groupement thiényle-2, éventuellement substitué par un ou plusieurs groupements alkyles inférieurs linéaires ou ramifiés, ? un groupement furyle-2, éventuellement substitué par un ou plusieurs groupements alkyles inférieurs linéaires ou ramifiés, ? un groupement pyrrolyle-2, éventuellement substitué par un ou plusieurs groupements alkyles inférieurs linéaires ou ramifiés. X représente un atome d'hydrogène, Y un représente un atome d'hydrogène, ou un groupement hydroxyle, ou bien, X et Y représentent ensemble un atome d'oxygène, à la condition que dans ce cas R2 ne représente pas un groupement alkyle inférieur non substitué le terme inférieur indiquant que les groupements ainsi qualifiés comportent 1 à 6 atomes de carbone, leurs énantiomères, diastéréoisomères et épimères. Procédé de préparation de ces composés, et les compositions pharmaceutiques les renfermant. Ces composés sont doués d'une activité analgésique dépourvue d'activité anti-inflammatoire. Ces composés n'interviennent pas sur les médiateurs de l'inflammation et sont dépourvus des effets secondaires dont les plus connus sont l'attaque de la muqueuse gastrique avec possibilité d'ulcères et l'inhibition de l'aggrégation plaquettaire avec troubles de la coagulation.
Patent CA-2013675-A1 (CA)
Title: Gas phase process for the production of 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane from vinylidene chloride
Inventor: ELSHEIKH MAHER Y
IPC: C07C17/087
Filed: 1990-04-03
Abstract: GAS PHASE PROCESS FOR THE PRODUCTION OF 1,1-DICHLORO-1-FLUOROETHANE AND/OR 1-CHLORO-1,1-DIFLUOROETHANE FROM VINYLIDENE CHLORIDE   Abstract of the Disclosure A novel gas phase process for the production of 1,1-dichloro-1-fluoroethane  from vinylidene  chloride  and hydrogen  fluoride  is provided.   The process is charac-terized  by  high  conversion  of  vinylidene  chloride  to product, with a high selectivity for 1,1-dichloro-1-fluoro-ethane.   The process may also be operated to selectively form 1-chloro-1,1-difluoroethane.  Few volatile by-products and substantially no tar or oligomeric material is formed. Catalyst performance remains constant over extended periods of time.
Patent CA-2014093-A1 (CA)
Inventor: REBOUILLAT SERGE
IPC: D06M15/693
Filed: 1990-04-06
Abstract: RESIN SOLUTION FOR THE SURFACE TREATMENT OF POLYMERS           Abstract of the Disclosure The  processability  of  polymer  fibers,  and  more specifically  of  aramid  fibers,  was  intended  to  be improved. This object was attained by the use of resin solutions or dispersions of resins in an organic solvent containing -   0.2  to 20   percent  by  weight  of  at  least  one polyamide resin based  on  long-chain branched dicarboxylic acids and having terminal   carboxylic   and/or   amino groups, -   0.02 to 10   percent  by  weight  of  a  copolymer compatible  therewith  and  containing carboxylic acid and/or carboxylic acid anhydride groups and carboxylic acid esters, -   0    to  5   percent by weight of further auxiliary materials, and -   organic solvents to make 100 percent by weight for the surface treatment of polymer fibers.
Patent CA-2014122-A1 (CA)
Title: Laptop computer with detachable interface card
Inventor: HO HERTZ
IPC: G06F1/16
Filed: 1990-04-06
Abstract: ABSTRACT OF THE DISCLOSURE  The  laptop computer includes a main  computer  body having a rear exposed portion, and a first and a second rear cover for the rear exposed portion. The first  and second   rear  covers   are  detachable  and   can   be interchangeably connected to the rear exposed  portion.          The  first  rear  cover  confines  an  extension  space adjacent  to  the  rear  exposed  portion  when  it  is attached. The second rear cover has a size smaller than the   first  rear  cover and  simply  covers  the  rear exposed  portion. The laptop computer further  includes an interface card detachably and optionally attached to the rear exposed portion and received by the  extension space of the first rear cover.
Patent CA-2014161-A1 (CA)
Title: A field-twisting waveguide junction
Inventor: LAGERLOF ROLF O E
IPC: H01P5/08
Filed: 1990-04-09
Abstract: A field-twisting waveguide junction for electromagnetic microwaves has a rectangle-like cross-section at one end thereof.      This cross-section deviates from a true rectangular shape, by virtue of an inwardly projecting ridge. The other end, of the junction 20 has a rectangular cross-sectional shape, and the cross- section of a central section of the junction has an L-shape. The junction comprises sections, in the illustrated embodiment sip sections, the cross-sectional shapes of which are changed step-wise between the sections. The width direction of the rectangular cross-section has the same directional sense as the height direction of the inwardly projecting ridge. The junction is intended for connecting a rectangular waveguide to a ridge waveguide and transfer the microwaves. The microwave has an electrical field vector whose direction is rotated through one-quarter of a revolution during transfer of the microwave.
Patent CA-2014583-A1 (CA)
Inventor: COOK JOHN E
IPC: B60J10/00
Filed: 1990-04-12
Abstract: ABSTRACT:            IMPROVED NON-SHRINKABLE CARRIER A carrier for use as a stiffening member, e.g. in polymeric  extrusions  used  in  the  motor  and  building industries,  being of elongate strip form and having a plurality of longitudinally spaced, transversely extending members therein, wherein the said members are maintained in their spaced relationship by means of at least one sinuous or zig-zag securing member running longitudinally of the carrier and being welded or otherwise rigidly secured to each transversely extending member.      The or each securing member may be wire having a generally   uniform   zig-zag   construction,   wherein   a substantial part of a corrugation or zig-zag thereof is located between adjacent transversely extending members, or may be wire of a more extended sinuous construction such that its transverse positioning within the carrier is varied along the length of the carrier.
Patent CA-2015512-A1 (CA)
Title: Switch for two-way hand-held transceiver
Inventor: HODSDON ROY F
IPC: H01H9/02
Filed: 1990-04-26
Abstract: SWITCH FOR TWO-WAY HAND-HELD TRANSCEIVER            ABSTRACT OF THE DISCLOSURE           A switch assembly comprises an element carrying a pair of hinged switch actuators and a universal devices connector.  An outer member, preferably formed or rubber, overlies the actuators and underlies the connector whereby the placement of this switch sub-assembly comprising the element and member in the switch compartment of a portable radio seals the switches in the compartment.  Actuation of the switches is accomplished by depressing a switch-actuation area in the flexible rubber member to pivot the underlying hinge to engage and depress an electrical switch.  The sub-assembly is mounted in the compartment by a tongue-and-groove arrangement at one end, and a single retaining screw at its opposite end.  Flexible electrical circuit carrier leads are threaded through a slot in the compartment wall to interconnect the switches and connector with the internal circuitry of the radio.
Patent CA-2015562-A1 (CA)
Inventor: PATEL ASHOK T
IPC: F01D5/14
Filed: 1990-04-26
Abstract: Replacement low pressure end blading for a utility power steam turbine having an extended length compared to original equipment end blading providing higher efficiency. The blading incorporates extended flat areas on the blade trailing edge for improved flow characteristics and reduced losses. Mass distribution is used to tune the blade to avoid natural harmonic frequencies coincidental with turbine rotational frequencies or harmonics thereof. Blade root modifications are included to facilitate installation.
Patent CA-2017042-A1 (CA)
Title: Ensemble de detection pour systeme de veille infrarouge
Inventor: DELTEIL ALAIN
IPC: H04N5/372
Filed: 1990-05-17
Abstract: L'ensemble comprend une barrette de détecteurs infrarouge élémentaires d'analyse du fond de scène. Les détecteurs élémentaires sont des détecteurs d'imagerie de surfaces sensibles plus petites que les taches optiques produites par les objets chauds à détecter.      L'ensemble comporte des moyens agencés pour regrouper virtuellement les détecteurs d'imagerie en détecteurs virtuels de veille (d v) de surfaces sensibles adaptées auxdites taches optiques, les moyens de regroupement comprenant des moyens de sommation en site de p détecteurs d'imagerie intermédiaires contigus au pas de q détecteurs avec un recouvrement de (p-q) détecteurs intermédiaires d'un détecteur de veille au suivant et des moyens de sommation en gisement de r échantillons d'imagerie au pas de s échantillons avec un recouvrement de (r-s) échantillons d'un pixel de veille au suivant. L'ensemble de l'invention est d'un bas prix de revient et adapté à toutes taches optiques.
Patent CA-2018220-A1 (CA)
Title: Heterocyclic compound having serotonine 2-receptor antagonistic activity
Inventor: WATANABE YOSHIFUMI
IPC: C07D513/04
Filed: 1990-06-04
Abstract: ABSTRACT OF THE DISCLOSURE         A heterocyclic compound represented by formula (I):        (I) wherein R1 represents a hydrogen atom, an alkyl group, an aryl group which may be substituted with one or more substituents selected from the group consisting of a halogen atom, an alkoxy group,  an  alkyl  group  and  a  trihalogenomethyl  group; ? represents 0 or 1;  ring A represents a 5- to 7-membered heterocyclic ring which may contain one or more hetero atoms selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom in addition to the nitrogen atom shared with the triazine ring or triazole ring, and which may contain one or more double bonds; Y represents a substituted or unsubstituted alkylene group having from 1 to 15 carbon atoms; and Q represents a group represented by formula (II):                                                           (II)   wherein R2 represents a hydrogen atom, a hydroxyl group, an alkyl group or an aryl group which may be substituted with one or more substituents selected from the group consisting of a halogen atom, a hydroxyl group, an alkyl group, an alkoxy group and a trihalogenomethyl group; and R3, R4 and R5, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alicyclic heterocyclic group or a trihalogenomethyl group, or a group represented by formula (III):                          (III) wherein Ar1 and Ar2, which may be the same or different, each represents an aryl group or an aromatic heterocyclic group, each of which may be substituted with one to three substituents selected from the group consisting of a halogen atom,  a hydroxyl  group,  an  alkoxy  group,  an  alkyl  group  and  a trihalogenomethyl group, and salts thereof, and intermediates therefor are disclosed. The compound of formula (I) and salts thereof exhibit selective serotonin 2-receptor antagonistic activity and are useful for the prevention or treatment of circulatory diseases, e.g., ischemic heart diseases, cerebral vessel disturbances,  and peripheral circulation disturbances.
Patent CA-2019667-A1 (CA)
Title: Process for producing carbon matrix materials and the materials so-produced
Inventor: FRANCOEUR JACQUES R
IPC: C04B35/52
Filed: 1990-06-22
Abstract: ABSTRACT      Carbon matrix materials of low porosity and high density, and process of producing the same.  The invention requires the use of a particulate heat-treated sub-alpha alumina as a matrix texture modifier.  The preferred matrix texture modifier is heat-treated gamma-alumina, and is most preferably the waste dust collected during the calcination of aluminum trihydrate carried out as a step of the Bayer process for the production of alumina.  The sub-alpha alumina is heated at a temperature of 400 - 450°C, usually for 12 - 24 hours, before use as a matrix texture modifier in the present invention.  As an alternative to the use of this preferred modifier, a similar modifier may be prepared by the low temperature calcination of aluminum trihydrate at 400 - 500°C followed by milling to produce particles of an appropriate size (generally <50µm).  The material produced by the invention has a greater density, a smaller pore size and a reduced tendency to shrink and crack during carbonization than equivalent material produced without the use of the matrix texture modifier.  When the material is a carbon composite (i.e. a carbon matrix reinforced by fibres and/or fillers), fewer subsequent densification and baking steps are required to prepare a useful product than is usually the case with conventional procedures.  The product of the invention can be used for the same applications as conventional carbon matrix materials.