baber/WOPTO huggingface dataset:
Patent CA-2042861-A1 (CA)
Title: Isochromane derivatives
Inventor: COMBOURIEU MICHEL
IPC: A61P9/10
Filed: 1991-05-17
Abstract: Abstract The invention concerns an isochromane derivative having the general formula I                 I     in which R1 is one to four substituents independently selected from hydrogen, hydroxy, alkyl (1-4 C), alkoxy (1-4 C), halogen, or CF3, or as two adjacent substituents together a methylenedioxy group; R2 is one to four substituents independently selected from hydrogen, hydroxy, alkyl (1-4 C), alkoxy (1-4 C), halogen, or CF3, or as two adjacent substituents together a methylenedioxy group; R3 is one to four substituents independently selected from hydrogen, hydroxy, alkyl (1-4 C), alkoxy (1-4 C), halogen, or CF3, or as two adjacent substituents together a methylenedioxy group: R4 is selected from hydrogen or alkyl (1-4 C); A is a bond or an alkylene or alkylidene group with 1-6 carbon atoms; B is an alkylene or alkylidene group with 1-6 carbon atoms when Y is a bond, or B is an alkylene group with 2-6 carbon atoms when Y is a group selected from 0, S, or NR5; X is CH or N; and R5 is selected from hydrogen or alkyl (1-4 C); or a pharmaceutically acceptable salt thereof.            The compounds can be used in the treatment of angina pectoris, cardiac dysrhytmias, cardiomyopathies, stroke, sudden death, and myocardial infarction.
Patent CA-2043768-A1 (CA)
Inventor: LAFOND LUC
IPC: B65H35/07
Filed: 1991-06-03
Abstract: There is disclosed a strip applying tool for applying strip material to substrates.  The tool includes a slidably mounted punching member to remove a portion of the strip material thereby facilitating the formation of a corner while maintaining the strip in a continuous uninterrupted length.  The tool further provides a channel extending therein to receive strip material which provides a guide wall to permit the application of the strip to the substrate while maintaining a lower surface of the tool above the substrate to prevent moving or scratching of the substrate.
Patent CA-2043882-A1 (CA)
Inventor: CAPEL ANTOINE
IPC: H02M3/158
Filed: 1991-06-05
Abstract: : Procédé de commande d'un régulateur à découpage et dispositif de mise en oeuvre dudit procédé La présente invention se rapporte à un procédé de commande d'un régulateur à découpage qui est un procédé de régulation d'un paramètre variable avec le temps avec une bande passante très élevée et un contrôle de l'énergie à chaque instant, dans lequel on prévoit l'état stable du système à l'échantillon suivant, ce qui permet d'assurer la régulation dans de grandes conditions de sécurité. Elle concerne également un dispositif de mise en oeuvre de ce procédé Application notamment au domaine spatial. FIGURE A PUBLIER : Fig. 1
Patent CA-2048260-A1 (CA)
Inventor: YUNOKI AKIO
IPC: D06H7/02
Filed: 1991-08-01
Abstract: An apparatus for automatically severing a slide fastener chain having a succession of fabric pieces attached to each of the opposed longitudinal marginal edges with a gap portion interposed between each  adjacent pair of fabric pieces comprises a feeding unit; a cutting unit disposed on a feed path for severing the fabric-pieced slide fastener chain transversely across the gap portions; and detecting means for producing a signal only when laterally-aligned gap portions reach  the detecting means.  The detecting means, feeding unit and the cutting unit are electrically connected such that, upon receipt of the signal from the detecting means, the feeding unit is deenergized and at the same time the cutting is energized.
Patent CA-2050187-A1 (CA)
Inventor: NARULA DIPAK
IPC: C08J3/00
Filed: 1991-08-29
Abstract: The present invention relates to hybrid aqueous silicone-organic composition which are prepared by first forming a silicone oil-in-water emulsion by dispersing an oil phase, containing a silicone polymer and a specific non-ionic surfactant, in a water phase containing a poly(vinyl alcohol) dissolved in water.  This silicone emulsion is subsequently mixed with a an aqueous solution of a water-soluble polymer to form the instant compositions which can be applied to substrates to provide coatings having heat resistance comparable to conventional all-silicone systems delivered from organic solvent solution.
Patent CA-2051748-A1 (CA)
Title: Medicament and support
Inventor: LACKNEY ALBERT M
IPC: A23G3/36
Filed: 1991-09-18
Abstract: Abstract of the Disclosure An oral medicament adapted to be administered on a support which allows sucking of the medicament while preventing inadvertent swallowing of the medicament in its entirety or in large pieces, as well as preventing accidental swallowing of the support is provided.  The support includes a stick of flexible plastic material having first and second ends, and may include interlocking means for the attachment of a safety guard which provides protection against accidental swallowing of the support. The medicament is secured to the first end of the support by a securing means which includes a plurality of orifices or spaces which form interlocking bonds with the medicament.
Patent CA-2055081-A1 (CA)
Title: High definition television coding arrangement with graceful degradation
Inventor: JOHNSTON JAMES D
IPC: H04N7/015
Filed: 1991-11-06
Abstract: A HIGH DEFINITION TELEVISION CODING ARRANGEMENT               WITH GRACEFUL DEGRADATION Abstract Graceful degradation for digitally encoded HDTV signals is achieved by appropriately coding the image to provide a controllable degradation of chosen image characteristics, such as temporal degradation, spatial degradation, and dynamic range degradation. In the temporal degradation approach of this invention, the resolution of movement suffers when noise is introduced. In the spatial degradation approach, the spatial resolution of the image is sacrificed. In the range degradation approach, the dynamic range of the signals is sacrificed. The graceful degradation is achieved by dividing the transmitted signal into two or more parts, such as parts A, B and C. Part A is given the heaviest error-correcting code; part B is given a "medium" error correcting code; and part C the is given the least powerful error correcting code (or perhaps none at all). A receiver that is close to the transmitter most likely receives parts A, B and C. A receiver that is farther away gets a noisier signal might and, perhaps, correctly receive only parts A and B. A receiver that is at the limits of the transmitter range might receive correctly only part A. Of course, the signals of parts A, B and C are constructed in a hierarchical fashion so that part A provides basic signal information; part B augments the basic information to produce a better picture; and part C augments part A plus B to produce the highest resolution picture.
Patent CA-2055170-A1 (CA)
Title: Call forwarding system
Inventor: KRISHNAN MANIVAKKAM P
IPC: H04M3/46
Filed: 1991-11-08
Abstract: CALL FORWARDING SYSTEM Abstract The above problem is overcome and a technical advance is achieved in accordance with the present invention which relates to a flexible, call forwarding and rerouting system which can be programmed by a user. In accordance with the principles of the invention, calls cannot only be forwarded from the called telephone to a plurality of telephone, in sequence, but, as the call is forwarded from onetelephone to another, the number of rings at each telephone can be determined by the user. In this manner, the call searches for the called party. In a further embodiment, the system can route a call from a telephone coupled to an on premises switch located at one central office to a telephone coupled to an on premises switch located at another central office. In another embodiment, the system can be programmed to route a call which remains unanswered after having been forwarded to various telephones to an answering machine which can beconnected to either the called telephone or to a different telephone which may have been rung previously. In still another embodiment, priority routing procedures can be established for calls received from specific telephones. For example, in telephone systems such as Intelligent Networks/ Integrated Services Defined Network, (IN/ISDN), where the calling number can be identified by the called telephone before the called telephone is answered, special routing procedures can be established for specific calls.
Patent CA-2058687-A1 (CA)
Title: Process for 3-exomethylenecepham sulfoxide esters
Inventor: BROWN FRANK JR
IPC: C07B61/00
Filed: 1992-01-02
Abstract: Abstract 3-Exomethylenecepham sulfoxide esters are obtained in improved yields via cyclization of 3-methyl-2-(4-chlorosulfinyl-2-oxo-3-amino-1-azetidinyl)-3-butenoic acid esters under anhydrous conditions with a Lewis acid-type Friedel-Crafts catalyst in the presence of a nitro compound, e.g., nitromethane, nitroethane, nitropropane or nitrobenzene.
Patent CA-2062225-A1 (CA)
Title: Femoral head remodeling and femoral insert and drilling aid therefor
Inventor: HALPERN ALAN A
IPC: A61F2/30
Filed: 1992-03-03
Abstract: An improved femoral hip joint replacement and method are disclosed, as well as a drilling fixture to assist with carrying out the method. The method involves -the provision of an elongated excavation or aperture by drilling of overlapping boreholes in the top of the femoral head, and then securing therein a similarly-contoured femoral insert adapted to be located within the femoral shaft and within the boreholes in the remaining upstanding portions of the remodeled femoral head. A metal cap, of approximately the normal femoral head size, or an arcuate portion thereof, is secured to or integral with the insert and projects in usual manner from the superior portion of the remodeled femoral head and is adapted to fit into an acetabulum of the hipbone. According to the method of the invention and with the employment of the femoral hip joint replacement provided thereby, there is substantially no chance of axial or rotational movement of the femoral hip joint replacement or any portion thereof within the femoral shaft or with respect to the remodeled femoral head, and the remodeled femoral head produced according to the invention and employing the femoral hip joint prosthesis of the invention is accordingly characterized by superior load-bearing characteristics and stability in operation.
Patent CA-2062329-A1 (CA)
Title: Process and intermediates to 2,2-dimethyl-2,3-dihydrobenzofuran-7-carboxylic acids
Inventor: SCHMID CHRISTOPHER R
IPC: C07C317/46
Filed: 1992-03-05
Abstract: Abstract This invention provides a process and intermediates for preparing 2,2-dimethyl-2,3-dihydrobenzofuran-7-carboxylic acids.
Patent CA-2066695-A1 (CA)
Inventor: HANSEN HOLGER C
IPC: C07D487/14
Filed: 1990-09-06
Abstract: 2066695 9103478 PCTABS00003 New imidazoquinazoline compounds having general formula (I), wherein A together with the .alpha.-marked carbon atom and the .beta.-marked nitrogen atom is one of the groups (a, b, c), wherein R4, R5, R6 and R7 independently are hydrogen, halogen C1-6-alkyl, aryl or aralkyl. R1 is (d, e, f, g), cyano or CO2R8, wherein R8 is hydrogen, C1-6-alkyl or C3-7-cycloalkyl, trifluoromethyl or C1-6-alkoxymethyl, R2 and R3 independently are hydrogen, halogen, CN, C1-6-alkyl, C2-6-alkenyl, C2-6-alkynyl, trifluoromethyl, C1-6-alkoxy, dialkylaminoalkoxy, aralkoxy, aryloxy which may be substituted with halogen or alkoxy, a cyclic amino group, or NR9R10, wherein R9 and R10 independently are hydrogen or C1-6-alkyl. The compounds are useful in psychopharmaceutical preparations as anticonvulsants, anxiolytics, hypnotics, antipsychotics, antiemetics, or in improving the cognitive function of the brain of mammals.
Patent CA-2068094-A1 (CA)
Title: Gear operated squeeze off tool
Inventor: THOMPSON CLIFFORD F
IPC: F16K7/06
Filed: 1992-05-08
Abstract: ABSTRACT A squeeze off tool for a flexible pipe includes a vice arrangement involving a first member below the pipe and a second member above the pipe, with a framework guiding the second member for movement toward and away from the first,  A power screw has one end rotatably mounted in the second member but cannot move axially with respect to the second member, the power screw having external threads at a location remote from the one end.  A locking device selectively restrains rotation of the power screw with respect to the second member.  A mechanical advancement mechanism mounted on the framework includes (a) a component defining an internal thread engaging an external threadon the power screw so that rotation of the power screw when the component is stationary moves the power screw axially, and (b) a worm gear mechanism is provided for rotating the component with respect to the framework, so that rotation of the component when the power screw is restrained against rotation will also move the power screw axially with respect to the component.
Patent CA-2069610-A1 (CA)
Title: Unit dose container
Inventor: KIMBER MICHAEL BROWNING
IPC: B65D17/28
Filed: 1990-11-19
Abstract: A liquid containing thermoplastic unit dose container (1) which comprises a body portion (2), a neck portion (3) and an outlet opening (7) at the end of neck portion (3) which is sealed by a non re-sealable cap (4). The outside wall of the neck portion (3) comprises a thread engagement portion (8) which is located at or proximate the outermost edge of the neck portion (3) so that after removal of cap (4) thread engagement portion (8) is adapted to engage within an inwardly facing screw thread channel (14) at the end of a syringe. This enables sealing connection of the container (1) to the syringe so that liquid within container (1) may be directly transferred from the container (1) to the syringe.
Patent CA-2070053-A1 (CA)
Title: Process for preparation of beta-cyanoalkylsilanes
Inventor: BANK HOWARD M
IPC: B01J31/12
Filed: 1992-05-29
Abstract: PROCESS FOR PREPARATION OF BETA-CYANOALKYLSILANES        ABSTRACT         The present invention is a process for the preparation of hydrolyzable .beta.-cyanoalkylsilanes.  More particularly, this invention relates to the catalytic addition of silicon hydrides to .alpha.,.beta.-unsaturated olefinic nitriles to form .beta.-cyanoalkylsilanes.  The instant process employs a catalyst comprising a diamine and copper or a copper compound.  The copper or copper compound may be retained on a solid support.  The process rate and yield of .beta.-cyanoalkylsilanes is increased by running the process in essentially an oxygen free environment.
Patent CA-2072353-A1 (CA)
Title: Structure of polyacetal resin composition and process for producing the same
Inventor: TAJIMA YOSHIHISA
IPC: C08K3/00
Filed: 1992-01-28
Abstract: Abstract The present invention provides a structure of a polyacetal resin composition which further comprises a polyolefin resin to form a dispersion of an interpenetrating network structure so as to achieve excellent acid resistance, fusibility with the polyolefin resin and mechanical properties.  In the melt-kneading of the polyacetal resin A as the matrix with the polyolefin resin B, a filler C having a surface tension which is at least higher than that of the component B at the melt-kneading temperature and an average particle diameter of 0.05 to 50 µm is melt-kneaded in an amount satisfying the following formulae (1) and (2):    B/(A+B) = 0.05 to 0.5 (weight ratio)    (1) C/(B+C) = 0.1  to 0.7 (weight ratio)    (2).
Patent CA-2072540-A1 (CA)
Title: Equalizer for optically transmitted information signals
Inventor: HEIDEMANN ROLF DR
IPC: H04B10/2513
Filed: 1992-06-26
Abstract: To compensate for nonlinear distortions in analog optical communication transmission systems, caused by laser chirps and the chromatic dispersion of the optical fiber, an equalizer in the form of an LC component is known, whose capacitance is formed by a variable capacitance diode.  If this equalizer is to be adjusted for considerable signal distortions along transmission path length), it must operate at great capacitance, which reduces its bandwidth.  In order to be able to equalize large bandwidth signals (e.g. 600 MHz) containing considerable distortions, the invention indicates an LC chain circuit with LC components of the known type, as the equalizer.      Further developments of this solution concern the appropriate polarizing of the variable capacitance diode and maintaining the frequency response constant, when adjusting the equalization.
Patent CA-2072542-A1 (CA)
Title: Car seat heating device which can be fitted subsequently
Inventor: SCHULLER FERDINAND
IPC: H05B3/34
Filed: 1992-06-26
Abstract: Abstract The car seat heating device, which in particular can be fitted subsequently, comprises a thin, electrically insulating, three-dimensionally resilient carrier material (4) permeable to air and humidity. To the carrier material there is applied a  resilient surface heating element (2) with a latticed structure comprising free spaces (5). The surface heating element (2) has a parallel conductor form, and three-dimensional deformability. To the surface heating element (2) is applied an adhesive film (3) permeable to air and humidity, which bonds the surface heating element to the carrier material (4) through the free spaces (5) in the latticed structure. To the adhesive film (3) there is applied a protective foil (1), which is separable therefrom. The adhesive strength of the adhesive film (3) is suitable for adhesion to the back of a car seat cover. Figure
Patent CA-2072704-A1 (CA)
Title: N-phenylthiourea derivatives and pharmaceutical use thereof
Inventor: COPPOLA GARY M
IPC: A61P9/10
Filed: 1992-06-29
Abstract: A B S T R A C T:     N-PHENYLTHIOUREA DERIVATIVES AND PHARMACEUTICAL USE THEREOF         The invention concerns the use of the compounds of formula I                                            I   wherein the substituents have various significances, in free form or salt form as appropriate, in the treatment of atherosclerosis.   It also concerns pharmaceutical compositions comprising a compound selected from a subgroup thereof.  It further concerns a subgroup of compounds thereof, which are novel, per se.   The compounds of formula I can be prepared in conventional manner, e.g. by reaction of an isothiocyanate with an amine or conversion of an urea to a thiourea.
Patent CA-2072949-A1 (CA)
Title: Stick composition with sodium chloride and stearyl alcohol
Inventor: MOGHE BHALCHANDRA D
IPC: A61K33/14
Filed: 1992-07-02
Abstract: Disclosed is a clear cosmetic stick composition (e.g., a clear deodorant solid stick) having a base of polyhydric alcohol (e.g., propylene glycol) and/or monohydric alcohol (e.g., ethanol), and water, and gelled with sodium salt of saturated fatty acids of C12-C22, and further including sodium chloride and stearyl alcohol. Inclusion of both sodium chloride and stearyl alcohol reduces, crystal formation in the composition, thereby improving clarity and appearance of the composition.
Patent CA-2073261-A1 (CA)
Title: Gasket with non-woven stuffing and process for manufacturing same
Inventor: LYONNET ANDRE
IPC: C09K3/10
Filed: 1992-07-07
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to a longiform gasket, composed of an outer envelope stuffed with at least one stuffing element, wherein, the outer envelope being a textile sheath, the stuffing element consists of a narrow non-woven web having a mean thickness of at least 5 mm. The invention also relates to a process for manufacturing such a gasket.
Patent CA-2075992-A1 (CA)
Title: Production of nylon yarn
Inventor: FOLLOWS GORDON W
IPC: D01F6/60
Filed: 1991-02-07
Abstract: Nylon carpet or textile yarn may be produced at an increased rate of throughput/spinneret hole by incorporating into nylon 6.6 polymer a secondary component which improves processability and lustre by suppressing spherulitic growth. The secondary component may be a co-monomer (e.g. hexamethylene diamine/isophthalic acid) which is incorporated during polymerisation to form a random co-polymer, a polymer (e.g. nylon 6) which is molecularly dispersed in the nylon 6.6 polymer without significant copolymerisation occurring or a metal salt (e.g. lithium choride).
Patent CA-2076893-A1 (CA)
Inventor: YANG STEVE S
IPC: H03L7/183
Filed: 1992-08-26
Abstract: A frequency synthesizer (10) and method the achieves low phase noise and provides synthesized frequency signals in fine frequency step intervals.  The synthesizer (10) comprises an L-band low phase noise frequency synthesizer with fine frequency step increments.  The synthesizer (10) employs half-interger digital frequency dividing (25), VCO frequency offsetting, local oscillator harmonic mixing (34) and two phase locked loop circuits (12, 13).  The synthesizer (10) comprises a reference oscillator (11) for providing a reference frequency signal, and two phase locked loops (12, 13). The first loop (12) is the fine loop and generates the frequency step size.  The second loop (13) reduces the phase noise, reduces the frequency step size and translates to the desired frequency.  The output from a first VCO (21) is divided by a predetermined fixed number (31) to reduce the frequency step size and to reduce the phase noise.  The second loop (13) has a second VCO (32) whose output, at L-band, for example, is divided by two (33), and then mixed (34) with the third harmonic of the reference frequency signal to generate an offset frequency signal that is locked to the low phase noise fine frequency step signal of the first loop (12).  The output frequency is adjusted by changing the digital programmable half-integer frequency divider (25).  The low phase noise and fine frequency step frequency synthesizer (10) provides a major improvement for Doppler radar and communication receivers.
Patent CA-2081083-A1 (CA)
Title: Low pressure responsive downhole tool with hydraulic lockout
Inventor: MANKE KEVIN R
IPC: E21B23/00
Filed: 1992-10-21
Abstract: Abstract Of The Disclosure An annulus pressure responsive well tool  includes a selectively  actuatable  hydraulic  bypass  for  bypassing  a pressure differential across a power piston of the tool so that an operating element associated with the power piston will remain in a chosen position during a subsequent change in well annulus pressure.
Patent CA-2081526-A1 (CA)
Title: Transesterification catalyst
Inventor: VENTER JEREMIA J
IPC: C07C67/10
Filed: 1992-10-27
Abstract: Abstract A process is described for preparing carboxylic acid esters via transesterification using a new heterogeneous, transition-metal transesterification catalyst of enhanced activity. The catalyst is prepared by an improved method of reacting a metal alkoxide to form an active species and absorbing the metal containing species onto a support. The method requires the controlled hydrolysis of a transition metal alkoxide to prepare an oligomer, which is then absorbed onto a hydroxylic support.
Patent CA-2082486-A1 (CA)
Title: Closure for sliderless zipper bags
Inventor: TILMAN PAUL A
IPC: B65D33/25
Filed: 1992-11-09
Abstract: A reclosable bag is formed of walls defining a closure with a mouth.  Adjacent to the mouth the bag is formed with interlocking male and female profiles for selectively opening and closing the mouth.  Beams are also provided on the inner surfaces of the walls positioned to insure that the male and female profiles do not open inadvertently.  Finger guide members may also be provided above the profiles to insure that the bag is closed properly.
Patent CA-2087150-A1 (CA)
Title: Horn actuator incorporating a transducer in a steering wheel
Inventor: FILION SCOTT
IPC: B60R21/2165
Filed: 1993-01-12
Abstract: P-540 DRD A HORN ACTUATOR INCORPORATING A TRANSDUCER IN A STEERING WHEEL ABSTRACT OF THE DISCLOSURE A steering wheel (12) incorporates an air bag unit (22). The air bag unit has a cover door (30) with a transducer (38) molded in a deformable front wall (35) of the cover door. The transducer is operably connected to an electrical circuit (42) that actuates a horn (44) when the circuit senses an actuating output voltage at the output lead (41) of the transducer (38). The transducer produces the actuating output voltage when hand pressure is exerted on the front wall (35).