baber/WOPTO huggingface dataset:
Patent CA-2132870-A1 (CA)
Title: Novel nonlinear optical arylhydrazones and non linear optical polymers thereof
Inventor: BALES STEPHEN E
IPC: C07C255/66
Filed: 1993-03-10
Abstract: The present invention relates to nonlinear optical material comprising nonlinear optical dihydroxy arylhydrazones and to nonlinear optical materials comprising compositions containing at least one divalent moiety of nonlinear optical arylhydrazones. The present invention also relates to polyesters, polyestercarbonates, polycarbonates, polyethers, and poly(hydroxy ether) polymers, incorporating the dihydroxy arylhydrazone as recurring divalent moeities in the backbone of the polymer. The polymeric compositions of the present invention have high glass transition temperatures and exhibit stable nonlinear optical activity at high temperatures over a period of time.
Patent CA-2133467-A1 (CA)
Title: Golf instructional device
Inventor: VASQUEZ JOSE C
IPC: A63B69/00
Filed: 1993-03-30
Abstract: An improved golf instructional device (23) with a support member (25, 51) adapted to be held against a conventional or standard golf club (19), a coupler (33, 53) may be secured to the support member and a link (35, 37, 55) has adjustable length. At least one arm pad (39, 59) is supported on one end of the adjustable link so that the trainer may be used by any size golfer. A threaded coupler (33, 53) may be used at the top of the support member and the adjustable link, and a threaded bolt may be used to support the arm pad for ease of assembly and disassembly. A second arm pad (59) may be located on the end of a second adjustable link (37) so that both arms are properly and unalterably positioned relative to the grip and the club.
Patent CA-2134187-A1 (CA)
Title: Gas generant compositions using dicyanamide salts as fuel
Inventor: BARNES MICHAEL W
IPC: C06B43/00
Filed: 1994-10-24
Abstract: A gas generant composition includes a fuel, at least 25 wt% of which is an alkali, alkaline earth, and/or transition metal salt of dicyanamide and an oxidizer which is an ammonium, alkali metal and/or alkaline earth metal salt of a chlorate, perchlorate or nitrate.
Patent CA-2134401-A1 (CA)
Inventor: CUNKELMAN BRIAN
IPC: F01M13/00
Filed: 1994-10-26
Abstract: An air passage insert for an oil fill spout disposed on a side of an oil crankcase which includes an air communication passageway having a first end thereof disposed within an interior portion of such oil crankcase at a position above an oil full level and a second end thereof being in communication with atmosphere for communicating air from such interior portion of such oil crankcase in a space located above such oil full level. There is further provided an attachment device which is engageable with both such air communication passageway and such oil fill spout for attaching the air communication passageway at least to one of such oil fill spout and such interior portion of such oil crankcase thereby enabling air to be vented from such space located above such oil full level during an oil filling process.
Patent CA-2137854-A1 (CA)
Title: Livestock tank heater
Inventor: KOCH RANDY G
IPC: F24H1/20
Filed: 1994-12-12
Abstract: A floating or submersible water tank heater including a Calrod heater, electrical connection leads for connection to a proper source of power, a thermostatic switch controlling power delivery to the heater and a temperature sensing element in controlling relation to the switch.  The Calrod heater is designed such that the interior heating coil is spaced a predetermined distance from the ends of the covering material such that a portion of the cover material is not heated and the heat is only developed in that area which encloses the coil to thereby provide a hot and a cold section with the temperature sensing element communicating with both of the sections to transmit a combined or moderated temperature to the thermostatic switch.  The entire unit is selectively floatable or submersible and in either useage may be provided with a readily placeable guard to prevent contact of the heater with the sides or bottom of the tank into which it is placed.
Patent CA-2139269-A1 (CA)
Title: Ds/cdma receiver using moving-averaged pilot signals for weighting and phase rotation of orthogonal data symbol vectors
Inventor: KAKU TOMOYA
IPC: H04B1/7115
Filed: 1994-12-29
Abstract: In a direct-sequence spread-spectrum receiver, spread orthogonal data signals and spread orthogonal pilot signals are correlated with orthogonal despreading sequences at a chip rate.      These despread signals are integrated at a symbol rate to produce orthogonal data symbols and orthogonal pilot symbols.      A predetermined number of pilot symbols of each phase component is moving-averaged. Each phase component of the orthogonal data symbols is weighted with the moving average value of the corresponding phase component of the pilot symbols, and summed with the other weighted component of the data symbols to produce an output signal of the spread spectrum receiver.
Patent CA-2139508-A1 (CA)
Inventor: BEESLEY GRAHAM E
IPC: H04W88/08
Filed: 1993-08-18
Abstract: A cordless telephone system of the type comprising a plurality of telephone handsets communicating by two-way radio with a base unit connected to the public telephone network.      In the larger premises, normally a plurality of spaced base units are employed, so that the handsets can communicate with the most favourably-positioned base unit wherever they are on the premises. In the present invention, however, larger premises are covered by just a single base unit (I), including within it all the necessary transceivers (7) together with a plurality of transponders (3, 4, 5) which are connected to the base unit and each other by means of an RF cable. The transponders each have aerials by which they can communicate by two-way radio with the handsets. The transponders downconvert the RF frequency of the radio link to a lower IF frequency which is passed to the transceivers (7) via the cable (6). The transponders (3, 4, 5) can be distributed about the premises as needed to provide complete radio coverage.
Patent CA-2139509-A1 (CA)
Title: Process for the preparation of iodinated biopolymers having disinfectant and cicatrizing activity, and the iodinated biopolymers obtainable thereby
Inventor: DE ROSA ALFREDO
IPC: C08B37/08
Filed: 1994-04-28
Abstract: Process for the preparation of complexes of iodine with chitosan or derivatives thereof, and the iodinated compounds thus obtainable. Said compounds take form of powders, which may contain over 60% of iodine in its elementary form. In a dry state the iodine bound to the chitosan or derivatives thereof does not sublimate. If the percentage content of iodine does not exceed 50% (by weight), said powders can be dissolved in aqueous solvents of an acid type, such as, for example, diluted acetic acid or glutamic acid. Said solutions are compatible with addition of surfactants, preferably of a non-ionic type, which improve the solubility of the chitosan-iodine complex. Solutions with identical characteristics can, alternatively, be prepared by solubilizing, heating if necessary the iodine in a suitable surfactant, preferably non-ionic, and adding this solution under rapid stirring to the chitosan derivatives thereof, dissolved in water, optionally in the presence of acids or salts. Alternatively, the chitosan or derivatives thereof in a dry state can be added to the solution of iodine in surfactant which rapidly absorbs onto the solid, forming the chitosan-iodine complexes. This material suspended in water or in acid solutions, preferably acetic acid or glutamic acid, solubilizes rapidly. The complexes of iodine with chitosan or derivatives thereof, in the form of aspersable powders, solutions or ointments, thanks to their disinfectant and cicatrizing properties, can be used in the field of surgery post-operative treatment and more generally speaking as products for topical use for medication of wounds and disinfectation of the skin. Another area of interest in which the complexes can be used as an active principle is the field of cosmetics.
Patent CA-2141826-A1 (CA)
Inventor: BERNARD KAREN A
IPC: D21H19/54
Filed: 1995-02-02
Abstract: Amino-multicarboxylate starch ether derivatives are provided having the following structure:    - or -  wherein St-O represents a starch molecule, R is H or CH3; R' is H, CH3 or COOH; M is a cation; n is 2 or 3; and R" is H or alkyl of 1 to 18 carbon atoms. These starch derivatives are particularly useful as retention and strength aids in papermaking.
Patent CA-2141849-A1 (CA)
Inventor: BUTTERBACH RUEDIGER
IPC: C09J123/16
Filed: 1993-07-29
Abstract: 2141849 9403548 PCTABScor01 A thermoplastic hot-melt-type adhesive based on a polymer blend of polyolefins is disclosed. An oligomer of an .alpha.-olefin with at least 4 C atoms in the monomer and a molecular weight of the oligomer of up to 5,000, as well as other known additives, are added to the known mixture of a largely amorphous poly-.alpha.-olefin and of a largely crystalline poly-.alpha.-olefin. The impact strength, the viscosity and the flexibility at low temperatures are above all improved in this manner. These hot-melt-type adhesives are therefore suitable above all for glueing non-polar plastics in the automobile and electric industry.
Patent CA-2143146-A1 (CA)
Title: Systeme d'acheminement des appels aux abonnes mobiles
Inventor: NGUYEN VIET A
IPC: H04W68/00
Filed: 1995-02-22
Abstract: Le numéro d'identification de région d'accès local et de transport (LATAID) de la région dans laquelle la partie A et la partie B d'un appel sont toutes deux situées est indiqué dans tous les messages de routage itinérant. Ces informations permettent une configuration d'appel automatique dans un réseau cellulaire de la façon la plus rentable qui reste conforme à la réglementation de transporteur interLATA.
Patent CA-2144143-A1 (CA)
Title: Flexible thermal transfer apparatus for cooling electronic components
Inventor: TOUSIGNANT LEW A
IPC: F28D15/02
Filed: 1995-03-07
Abstract: A thermal transfer apparatus adapted for thermal connection to a heat source for conducting heat away from the heat source.  The thermal transfer apparatus includes a container which is substantially impermeable to fluid and forms an expandable compartment that is substantially gas-free.  A thermal transfer liquid is positioned within the expandable compartment for thermal connection to the heat source.  The thermal transfer liquid has a boiling point that is at or below an operating temperature of the heat source.  When the heat source is in a non-operating state, the thermal transfer liquid is compressed and substantially fills the expandable compartment.  When the heat source is in an operating state, the thermal transfer liquid conducts heat from the heat source. The liquid vaporizes and forms a vapor within the expandable compartment which causes the expandable compartment to expand and create a vapor space above the liquid.  A condenser condenses the vapor into a condensate at a location remote from the heat source.  The condensate then returns to the body of liquid for additional cooling of the heat source.
Patent CA-2144160-A1 (CA)
Title: Rapid frozen food thawing system
Inventor: MCFADDEN DAVID
IPC: A47J37/12
Filed: 1993-09-07
Abstract: A two-compartment, automated apparatus and a semi-batch process for achieving rapid and com-plete thawing of a frozen food product, such as french fry potatoes, prior to cooking are disclosed. This invention results in a rapid, economical thawing of frozen food that is especially compatible with auto-mated, commercial-scale deep frying operations.
Patent CA-2144203-A1 (CA)
Title: Portable Marine Shelter
Inventor: CUTLER HARRISON
IPC: E04H15/36
Filed: 1995-03-08
Abstract: A portable marine shelter that includes a frame assembly having two lower spaced apart longitudinally extending members, or float bars, and a flexible cover that fits over the frame assembly to provide an enclosure to store a boat and the like.  A floatation system includes numerous sphere-shaped floats that are rotatably attached to the lower frame members, the floats are also free to move longitudinally along predetermined sections of the lower frame members.  The floats are substantially equally distributed between the two lower members and along each individual member.  The loosely attached floats enables the shelter to accommodate wave and wind generated motion without unduly stressing the frame assembly of the boat sheltered therein.  The entire shelter is loosely attached to a dock and loosely anchored to the bottom of the lake, etc. to provide a structure that securely protects a boat yet is capable of being moved easily to different locations.
Patent CA-2146800-A1 (CA)
Inventor: MILLER DAVID A B
IPC: G02F1/015
Filed: 1995-04-11
Abstract: A drive circuit for increasing the voltage range applied across optical modulators in a transmitter stage of an optical communication system. The circuit comprises a first switch and a second switch connected thereto.   The first switch is responsive to a first input signal and has a maximum voltage drop equal to a first reference voltage. The second switch is responsive to a second input signal and has a maximum voltage drop equal to a second reference voltage.   A modulator is connected between the first and second switches so that, depending on the values of the first and second input signals,  the maximum voltage drop across the modulator will be a value greater than either the first or the second reference voltage.
Patent CA-2147175-A1 (CA)
Title: Dispenser for wipes
Inventor: WATTS HUGO PAUL
IPC: A47K10/42
Filed: 1993-10-08
Abstract: A dispenser for paper wipes and the like comprising a first container which is adapted to hold a stack of wipes, the first container having an aperture in one face providing an opening through which wipes may be dispensed, and a second container for receiving used or soiled wipes, the second container having an aperture in one face providing an opening through which wipes may be passed, a portion of each of the first and of the second containers being movable between a closed position and a released position in which the first container may be filled or emptied or in which the second container may be emptied, wherein complementary connection means are provided on the first and second containers, said connection means being adapted to releasably join together the two containers and each container is adapted to contain and retain wipes, when separated from the other container.
Patent CA-2148438-A1 (CA)
Title: Apparatus for placement, condensation and curing of photopolymerizable dental material
Inventor: BEKESCH NICHOLAS
IPC: A61C13/15
Filed: 1995-05-02
Abstract: An apparatus for placing, condensing and curing photopoly-merizable dental restorative material and photopolymerizable dental cement without substantially restricting the motion of the dentist.  A first handpiece has a tip for use in condensing or plugging, as well as for the emission of light for curing. Visible light having a wavelength of about 400-500 nm. is emitted in short, high intensity bursts for rapid curing. In addition to the plugger, the end of the handpiece also has a blade that may be used for applying resin. Thus, the device need only be twisted, rather than flipped, to perform this function. The handpiece is an elongated member with a hexagonal cross-section, and alternating sides of the tool have a conductive metal strip. The handpiece is only armed when all three strips are touched simultaneously. The handpiece is not armed when resting on a surface such as the chest of a patient, where at most two metal strips would receive contact.  Emission of light from the handpiece can be controlled with a foot control. The handpiece may be detached from the fibre optic cable that connects it to a light source, and may be discarded or sterilized and replaced. A second handpiece has a forceps shape for placing around orthodontic brackets. Each prong of the forceps is equipped with a fibre optic bundle so that the firing of high intensity light bursts from the tips occurs simultaneously at two places on either side of the bracket. A light source module is connected to three handpieces by flexible fibre optic cables.  There is mutual exclusion circuitry to prevent simultaneous firing of certain handpieces.
Patent CA-2149749-A1 (CA)
Title: Control valve
Inventor: DURRANT DAVID KENNETH
IPC: G05D16/06
Filed: 1994-09-27
Abstract: A control valve, primarily intended for use in the spraying of pressurised liquid, has a body (13) having an inlet (11), an outlet (12), and a liquid flow path through the body from the inlet to the outlet, there being in the flow path a spring disc (31) which is responsive to inlet liquid pressure to cause it to snap over between a closed position, which it engages a valve seat (19) to prevent flow through the valve, and an open position, where it is disengaged from the valve seat, to permit flow, the disc moving to its open position at a liquid pressure equal to or higher than the liquid pressure at which it moves to its closed position. The valve can include a restrictor (29) which co-operates with a further valve seat (20) to reduce the pressure of liquid flowing from the valve seat (19) which the spring disc engages in its closed position.
Patent CA-2154989-A1 (CA)
Title: Modified venetian blind/pleated shade
Inventor: LOEPPKY KENNETH DAVID
IPC: E06B9/322
Filed: 1995-07-28
Abstract: There is described an improved method and apparatus for a window blind having a lift cord loop for adjusting the blind,  the apparatus comprising a hollow elongated member connected to the blind for enclosing at least the looped end of the lift cord, and a pull cord connected to the lift cord within the hollow member, the other end of the lift cord emerging therefrom, the hollow member being of sufficient length to enclose at least the lower looped end of the lift cord in any adjusted position of the blind.
Patent CA-2155043-A1 (CA)
Inventor: KINOSHITA MASAO
IPC: A61P21/00
Filed: 1995-07-31
Abstract: The present invention relates to an novel anti-motoneuron-disease agent, comprising superoxide dismutase conjugated with lecithin through chemical crosslinking represented in the following generic formula (PC-SOD) as an effective ingredient:            SOD-[C(O)-(CH2)n-C(O)-X]m , wherein SOD represents superoxide dismutase and X represents a residue of lysolecithin having a hydroxy group at position 2 of glycerol whose hydrogen atom of the hydroxyl group at position 2 is removed.       A pharmaceutical agent of the present invention may improve symptoms of motoneuron diseases such as amyotrophic lateral sclerosis etc. by oral or parenteral administration.          The present invention also relates to a novel treatment method for motoneuron disease by administrating PC-SOD and novel use of PC-SOD as a medical composition for preparing an agent for treating motoneuron disease.
Patent CA-2157586-A1 (CA)
Title: Indoletetralins having dopaminergic activity
Inventor: ANDERSSON BENGT RONNY
IPC: A61P25/00
Filed: 1994-03-21
Abstract: A compound of formula (I) and pharmaceutically acceptable salts thereof, where Z is R3 and X  and Y form (a), or X is R3 and Y  and Z form (a), (b) or (c); R1 and R2 are independently hydrogen, C1-6 alkyl, C3-7 cycloalkyl, -CH2-C3-7 cycloalkyl, phenyl (option-ally substituted with halogen or C1-6 alkyl), -thiophenyl (option-ally substituted with halogen or C1-6 alkyl), or C1-6 alkyl phenyl;  R3 are independently hydrogen, halogen, -O-C1-6 alkyl or C1-6 alkyl; R4 is a valence bond, CH2 or oxygen; R5 and R6 are independently hydrogen, sulfur, -S--C1-6 alkyl, halogen, CON(R3)2, -COCF3, -COC1-6 alkyl, -CO phenyl, oxygen, -CHO, CN except that when Y and Z form (b), R1 and R2 are hydrogen or a C1-6 alkyl and R3 is hydrogen, then at least one of R5 and R6 must be other than hydrogen. These compounds and derivatives thereof exhibit dopamine-receptor stimulating activ-ity in mammals which are useful for treating hyperprolactinemia, galactorrhea, amenorrhea, impotence, Parkinsonism, diabetes, acromegaly, hypertension and other central nervous system disorders which respond to dopamine-receptor stimulation.
Patent CA-2159395-A1 (CA)
Title: Polyurea coating compositions and coatings having improved flexibility
Inventor: WADE ROBERT A
IPC: C08G18/28
Filed: 1995-09-28
Abstract: The present invention relates to a coating composition for the preparation of a polyurea coating which contains a) a polyisocyanate component containing one or more aliphatic polyisocyanates, b) at least one polaspartic acid ester c) 0.05 to 5% by weight, based on the total weight of the coating composition, of an organic acid, wherein components a) and b) are present in amounts sufficient to provide an equivalent ratio of isocyanate groups of component a) to isocyanate-reactive groups of component b) of 0.5:1 to 20:1.
Patent CA-2164115-A1 (CA)
Inventor: IGWEMEZIE JUDE ODIHACHUKWUNMA
IPC: E01B9/32
Filed: 1994-06-02
Abstract: A rail tie plate (410, 420, 440, 460, 478) comprises two elements each provided with a rail flange shoulder (414), a downward leg (421) and a lateral projection (422) whereby the tie plate can be installed on a plate member (21, 121, 221, 321) of a slotted steel tie (20, 120, 220, 320) by insertion of the projection (422) of each element into a respective slot and rotation of the element inwardly and downward. A tie plate (410, 420, 440, 450, 460, 478) having longitudinal shoulders (414) is provided with a downwardly facing abutment surface such as provided by an opening (424) laterally through each shoulder (414) on which a rail clip (430, 470, 482, 489) engages to bear on an upper side of the rail flange (416). Rail rollover is avoided by transferring rotational forces to the plate (410, 420, 440, 450, 460, 478) through the engagement of the clip (430, 470, 482, 489) on the shoulder (414) and resisting such rotational force at the connection between the tie plate (410, 420, 440, 450, 460, 478) and the tie (20, 120, 220, 320). A steel tie for incorporation in a rail track has a horizontal oblong rectangular plate member (21, 121, 221, 321) for connection transversely of the rail, and a web (23) or webs (123, 223, 323) extending vertically on the underside of the plate member (21, 121, 221, 321) and spaced inwardly from its longer sides. A ballast engaging plate member (33, 41, 133, 233, 333) may be connected on the tie on its underside and faces generally transversely of the rail or ends of the plate (21, 121, 221, 321) may be bent downwardly.
Patent CA-2166138-A1 (CA)
Title: A celp-type speech encoder having an improved long-term predictor
Inventor: FUNAKI KEIICHI
IPC: G10L25/90
Filed: 1995-12-27
Abstract: A speech signal encoder includes a speech analyzer for determining short-term prediction codes at a predetermined time interval.  The prediction codes indicate frequency characteristics of a speech signal. A reverse filter is provided for calculating residual signals of first synthesis filter.  The residual signals is defined by the short-term prediction codes.  A residual code book stores past residual signals. Further, a plurality of delay codes, each of which represents pitch correlation of the speech signal, are tried a predetermined number.  A vector generator issues, using the residual code book, delay residual vectors each of which corresponds to the delay code.  A filter is provided for generating a synthesis signal using second synthesis filter which receives the delay residual vectors and which is defined by the short-term prediction codes.  A distance between the speech signal and the synthesis signal is calculated.  Subsequently, a pitch path estimator estimates a pitch path which varies smoothly. The pitch path thus estimated is used for determining a delay code.