baber/WOPTO huggingface dataset:
Patent CA-2035975-C (CA)
Inventor: SHAPIRO SANFORD S
IPC: H01Q5/10
Filed: 1991-02-08
Granted: 1995-01-17
Abstract: A microstrip patch antenna assembly (20,  52,  106)  is formed  of  a  patch  radiator  (24,  58)  and  a  feed structure (26, 64) of microstrip feed elements (48, 50, 66,  68)  disposed on opposite sides of a ground-plane element (22, 54) and spaced apart therefrom by layers (28, 30, 72, 74) of dielectric material.  A single slot (108) or a pair of orthogonally positioned slots (44, 46,  82,  84)  within the ground-plane element couples linearly or circularly polarized microwave power from the feed structure to the patch radiator.  Additional radiators (60, 62) may be stacked above the foregoing radiator,  the radiators  being  separated  by  further layers (76, 78) of dielectric material. A plurality of square-shaped radiators  (58,  60,  62) may be employed for  multiple-frequency  operation  in  which  case  the radiator size and the thickness of dielectric material between  the  radiator  and  the  ground-plane  element establish a resonant frequency.  A single radiator (24) of rectangular shape may be employed for radiation at dual frequencies wherein short and long edges of the radiator are each equal to one-half of the respective wavelengths in the dielectric material.  An array (124) of  the  antenna  assemblies  can  be  constructed  in monolithic form for development of a steerable beam of electromagnetic radiation.
Patent CA-2042289-C (CA)
Title: Taste masking and sustained release coatings for pharmaceuticals
Inventor: ROCHE EDWARD J
IPC: A61K47/38
Filed: 1991-05-10
Granted: 1998-12-08
Abstract: Chewable medicament tablets are made from coated granules of a medicament wherein the coating on said granules comprises a blend of cellulose acetate and/or cellulose acetate butyrate and hydroxypropyl cellulose and a process for making such tablets and a method of providing sustained release of medicaments utilizing such coated granules in a tablet.
Patent CA-2043700-C (CA)
Inventor: ONO HITOSHI
IPC: F02N15/02
Filed: 1991-05-31
Granted: 1998-04-07
Abstract: In a starter system for an internal combustion engine using a planetary reduction gear unit, the internal gear of the planetary reduction gear unit, the center bracket accommodating the internal gear and the pinion cover are joined together so as not to rotate relative to one another by using radial projections provided in the outer circumferential surface of the internal gear which are passed through openings provided in the center bracket and received by associated recesses provided in the pinion cover.  The three members are thus prevented from rotating relative to one another with a simple structure which is also easy to assemble.  The projection of the internal gear may also be used for securing an annular seal member interposed between an axial end surface of the internal gear and the corresponding shoulder surface of the center bracket.
Patent CA-2044672-C (CA)
Title: Burst control circuit for use in tdma communications system
Inventor: NORIMATSU HIDEHIKO
IPC: H03G3/20
Filed: 1991-06-14
Granted: 1994-10-04
Abstract: ABSTRACT OF THE DISCLOSURE      A burst control circuit for use in a TDMA communications system comprises a power amplifier having two separate control terminals.  The circuits also comprises an ALC circuit for producing and supplying a level control signal to the first control terminal of the power amplifier to perform negative feedback operation and to keep the level of an output burst signal constant.  The burst control circuit further comprises a waveform control circuit which generates in response to a burst timing signal a waveform control signal having gently sloped leading and trailing edges and supplies the waveform control signal to the second control terminal of the power amplifier to control the waveform of the output burst signal.
Patent CA-2049747-C (CA)
Title: Recording apparatus
Inventor: MIYAUCHI YASUO
IPC: B41J13/14
Filed: 1991-08-23
Granted: 1996-12-17
Abstract: A recording apparatus comprising a platen for supporting a sheet at a recording area, feeding means for feeding the sheet to the platen, recording means for recording an image on the sheet at the recording area, and an urging member disposed at a downstream side of the recording area and adapted to urge the sheet against the platen.
Patent CA-2053206-C (CA)
Title: Monoclonal antibodies against melanoma
Inventor: BRANDT MICHAEL
IPC: C07K16/00
Filed: 1991-10-10
Granted: 2000-12-19
Abstract: The present invention provides a human monoclonal antibody against melanoma, characterised in that it binds to the gangliosides GM3 and GD3 but essentially does not bind to the gangliosides GM1, GM2, GD1a, GD1b and GD2, the binding of the antibody to the gangliosides having been determined by immune staining after thin layer chromatographic separation of the gangliosides. The present invention also provides a process for the production of human monoclonal antibodies directed against melanoma, wherein, without previous immunisation, B-lymphocytes are isolated from a healthy person, the isolated B-lymphocytes are immortalised, antibodies from the immortalised B-lymphocytes are screened by immune-histochemical analysis for binding against melanoma and/or melanoma metastases, the positively reacting B-lymphocytes are selected, cultured and monoclonal antibodies obtained therefrom.
Patent CA-2054177-C (CA)
Title: Preparation of 6-trifluoromethyl-1,3,5-triazines
Inventor: MAYER HORST
IPC: C07D251/16
Filed: 1991-10-24
Granted: 2002-07-09
Abstract: Abstract of the Disclosure: 6-Trifluoromethyl-1,3,5-triazines I      (X = O, S; R1 = H; R1, R2 = carbon organic radicals) are prepared by reacting (a) N-trichloroacetamidinoguanidines II      with trifluoroacetic acid derivatives III     (Y = Cl, alkoxy, CF3-CO-O) to give 4-trichloromethyl-6-trifluoromethyl-1,3,5-triazines IV      and (b) reacting the products IV in the presence of a base with alcohols V     The triazines I are valuable intermediates for crop protection agents.
Patent CA-2059174-C (CA)
Inventor: KATZ NEIL ALAN
IPC: G06F1/20
Filed: 1992-01-10
Granted: 1997-05-13
Abstract: A battery operated portable personal computer includes ambient temperature and humidity sensors, as well as two LCD's to provide visual indication that the ambient temperature or humidity is out of range.  If the ambient temperature drops below 3 degrees C, or if it rises above 52 degrees C, the computer enters a low power suspend mode wherein the computer is inoperable, but, upon switching from the suspend mode to the resume (operating) mode, the application program that was running at the time of the suspension is resumed at the same point that the suspension occurred.  The LCD temperature indicator is activated when the ambient temperature drops below 3 degrees C, or rises above 46 degrees C.  Thus, for high temperatures, the temperature indicator is activated 6 degrees before the computer is placed in the suspend mode. The ambient temperature is periodically monitored while in the suspend mode and, if the temperature rises above 6 degrees C, or drops below 44 degrees C, the computer switches from suspend to resume. Thus, hysteresis is provided to prevent the computer from oscillating between suspend and resume modes. If the humidity rises above 96% relative humidity, the computer enters the suspend mode and the LCD humidity indicator is activated.  The ambient humidity is periodically monitored in the suspend mode and, if it drops below 87% relative humidity, the computer switches from suspend to resume mode.
Patent CA-2060255-C (CA)
Title: Device for guidance of objects connected in strip form
Inventor: AKESSON MICAEL
IPC: B65B19/34
Filed: 1992-01-29
Granted: 2002-01-01
Abstract: A device for guiding objects that are connected to one another in a strip form and that are to be individually applied to packaging containers includes a feed wheel for receiving the objects and feeding them in a forward direction. A guide plate surrounds an end of the feed wheel and the guide plate is connected to an arrangement that allows the position of the guide plate to be adjusted relative to the feed wheel.
Patent CA-2082365-C (CA)
Title: Wound dressing comprising polyurethane foam
Inventor: CHEONG CATHERINE L
IPC: A61L15/22
Filed: 1992-11-06
Granted: 2003-07-08
Abstract: A wound dressing has a wound-contact layer formed from a polyurethane foam. The foam comprises one part by weight of the reaction product of an isocyanate-capped prepolymer with water (and optionally ether hydroxy-functional compounds), and from 0.03 to 0.3 parts by weight of a natural or synthetic rubber. The isocyanate-capped prepolymer is preferably an isocyanate-capped ethyleneoxy/propyleneoxy copolymer, and the rubber is preferably an acrylic rubber.
Patent CA-2084420-C (CA)
Title: Programmable signal processor architecture
Inventor: ROBINSON JEFFREY I
IPC: G06F15/78
Filed: 1991-05-15
Granted: 2002-10-22
Abstract: A programmable integrated signal processor("SPROC") is provided having a multiported central memory unit (RAM 100), a program memory (150), one or more digital processors (400) coupled to the RAM and to the program memory, a data flow manager (600) which controls external data flowing into the SPROC and processed data flowing out of the SPROC by acting as an interface of such data with the multiported RAM, input and output ports (700) coupled to the DFM and acting as serial interfaces for the SPROC, and a host port (800) permit-ting the programming of the SPROC and acting as a parallel in-terface to the SPROC, SPROCs may be coupled via their input and output ports to provide a system. The SPROC architecture in conjunction with a compiler and user interface system per-mits a user to "sketch and realize" complex circuits in the SPROC. An access port (900) permits reading and writing to data and program RAM memory locations. A probe (1000) per-mits monitoring of a memory location and provides an analog signal indicative thereof.
Patent CA-2092682-C (CA)
Title: Metallic access in a fiber remote terminal
Inventor: CZERWIEC RICHARD M
IPC: H04B10/213
Filed: 1993-03-12
Granted: 1998-12-22
Abstract: An optical line shelf formerly used exclusively for multiplexing broadband video with voice channels in a serial bus transport format is adapted for use with both optical line distribution units and a metallic distribution unit.
Patent CA-2105728-C (CA)
Title: Semiconductor type differential pressure measurement apparatus and method for manufacturing the same
Inventor: IKEDA KYOICHI
IPC: G01L9/00
Filed: 1993-09-08
Granted: 1999-11-09
Abstract: A semiconductor type differential pressure measurement apparatus comprising a measuring diaphragm whose periphery is fixed and two measuring chambers each having a predetermined spacing along both surfaces of said measuring diaphragm. The apparatus detects differential pressure within the allowable limit of measurement, but when an overpressure is applied, the measuring diaphragm is directly backed up by the wall of the measuring chamber to prevent the diaphragm from being damaged by the overpressure. Accordingly, the apparatus requires no additional protective mechanism against overpressure.      The apparatus comprises an additional chamber accompanied by an overhang provided in such a manner that the effective area thereof may be larger than that of the opening of the chamber. Accordingly, the force which is exerted to the joint portion between the silicon substrate and the support substrate upon application of an overpressure can be greatly reduced.      Two measuring chambers each having a predetermined spacing are provided along both sides of the measuring diaphragm. Accordingly, the exterior of the semiconductor differential pressure measuring apparatus according to the present invention may be exposed to open air, and thereby no particular pressure-resistant casing is necessary. In further detail, the sensor portion need not be covered with a pressure resistant vessel as in the apparatuses of the conventional type in which the measuring pressure is applied externally to the sensor, The semiconductor type differential pressure measurement apparatus according to the present invention comprises a conductor connection formed by introducing impurities into the joint surface between the silicon substrate and the support substrate, and one end thereof is further connected to a strain detector element.      Accordingly, no pressure-resistant hermetic sealing is necessary in extract an electric signal.
Patent CA-2109934-C (CA)
Title: Substituted indoles as anti-aids pharmaceuticals
Inventor: ROMERO DONNA LEE
IPC: C07D403/12
Filed: 1992-06-23
Granted: 2002-12-10
Abstract: Substituted indoles of formula (I) are useful anti-AIDS pharmaceuticals.
Patent CA-2113111-C (CA)
Inventor: DAMES ANDREW
IPC: H01Q13/08
Filed: 1992-07-09
Granted: 2000-01-11
Abstract: An antipilferage tag is disclosed which includes a resonant circuit adapted to receive an RF signal and to transmit a response signal when interrogated by said RF signal. The tag includes circuit components constituted by or fabricated from a metallised layer supported by a dielectric material.
Patent CA-2115557-C (CA)
Inventor: YOSHIDA TADAO
IPC: C06B29/22
Filed: 1993-05-13
Granted: 2000-07-25
Abstract: The air bag gas generating composition of this invention comprises a nitrogen-containing organic compound and a halogen oxo acid salt. The invention provides an air bag gas generating composition without a high shock sensitivity and with an available burning velocity and gas output characteristics and featuring a comparatively low combustion temperature.
Patent CA-2119857-C (CA)
Inventor: FRANCIS DEBRA CAROL
IPC: B29C48/13
Filed: 1991-09-27
Granted: 2001-10-09
Abstract: Composite coatings are provided having a variable thickness and a gradient coloration in the cross-web direction using a premetered extrusion coating process wherein a pigmented coating composition and a non-pigmented coating composition are si-multaneously extruded onto a carrier film. The composite coatings are useful in preparing laminated structures such as automo-bile windshields with a colored gradient band.
Patent CA-2120394-C (CA)
Inventor: ANEIROS RICARDO Z
IPC: B60N2/015
Filed: 1994-03-31
Granted: 2003-10-07
Abstract: An easily removable vehicle seat is provided for use with a vehicle including a floor having an upwardly facing surface. The floor includes front and rear wells extending below the upwardly facing surface and anchor members extending across the wells. The vehicle seat includes a rigid support structure having a downwardly facing surface for engaging the anchor members of the vehicle floor. A cushioned seat structure is provided on the rigid support structure. The vehicle seat also includes hook members mounted on the rigid support structure for movement between (1) an operative position extending below the downwardly facing surface so as to enter the wells and engage in hooked relationship with the anchor members and (2) an inoperative position disposed above the operative position thereof so as to enable the rigid support structure to be moved relatively over the floor.      Wheels are mounted on said rigid support structure for movement between (1) an operative position extending below the downwardly facing surface of the rigid support structure and so as to enable the rigid support structure to be rolled over the upwardly facing surface of the vehicle floor and (2) an inoperative position disposed above the operative position thereof. The vehicle seat further includes a mechanism for moving the hook members into the operative position thereof and the wheels into the inoperative position thereof and for moving the hook members into the inoperative position thereof and the wheels into the operative position thereof.
Patent CA-2122732-C (CA)
Inventor: WHITLOW MARC D
IPC: C12N15/13
Filed: 1992-11-20
Granted: 2008-04-08
Abstract: Methods for producing multivalent antigen-binding proteins are described.  The methods include purification of compositions containing both monomeric and multivalent forms of single polypeptide chain molecules, and production of multivalent proteins from purified monomers. Production of multivalent proteins may occur by a concentration-dependent association of monomeric proteins, or by rearrangement of regions involving dissociation followed by reassociation of different regions. Bivalent proteins, including homobivalent and heterobivalent proteins, are made in the present invention. Genetic sequences coding for bivalent single-chain antigen-binding proteins are disclosed. Uses include all those appropriate for monoclonal and polyclonal antibodies and fragments thereof, including use as a bispecific antigen-binding molecule.
Patent CA-2122944-C (CA)
Inventor: FUJISHIMA HIROMICHI
IPC: F42B3/10
Filed: 1994-05-05
Granted: 1997-11-04
Abstract: A passive safety device starting apparatus includes:  a sampling unit for sampling a plurality of acceleration values from an automotive vehicle according to periodic  interrupt signals;  an integration unit  for calculating the  sum of a plurality of  acceleration values  sampled within each of  a plurality of first time intervals, for storing a number of the sums, each of which is calculated within a second time interval greater than one of the first time intervals, in a corresponding number of data areas of a memory, and for generating a value of an integral based on the number of the suns within each first time interval; and a starting unit for updating the integral value according to the periodic interrupt signals by adding a new acceleration value  to  the  integral  value  generated by the integration unit after the new acceleration value is sampled by the sampling unit, and for starting a passive safety device when the updated integral value is detected to be greater than a threshold value.
Patent CA-2123093-C (CA)
Title: Sulfonamide herbicides
Inventor: GATES PETER STUART
IPC: C07D239/34
Filed: 1992-11-02
Granted: 2006-01-24
Abstract: Herbicidal sulfonamides of formula (I) and salts thereof; where A represents a substituted or unsubstituted benzene ring, or a 5- or 6-membered substituted or unsubstituted heteroaromatic ring; Q is -O-, -S- or a group -CXX'-; X and X', which may be the same or different, are each hydrogen, halogen, cyano, an optionally-substituted alkyl group, or a group -OR a, -SR a, or -COR b; or one of X and X' represents hydroxy and the other is as defined above; or X and X' together represent =O or =S; R a is an optionally-substituted alkyl, aryl or acyl group; R b is an optionally-substituted alkyl or aryl group, or a group -OR c or -NR c R d; R c and R d, which may be the same or different, are each hydrogen, or an optionally-substituted alkyl or aryl group; Y is nitrogen or a group CR9; R1 is an optionally-substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, heterocyclyl, benzoheterocyclyl or amino group; R2 is hydrogen; an optionally-substituted alkyl or carboxylic acyl group, or a group -SO2R1; R3 and R4, which may be the same or different, are each hydrogen, halo, an optionally substituted alkyl, alkoxy, cycloalkyl or amino group, or an optionally-substituted heterocyclyl group;  and R9 represents hydrogen or an optionally-substituted alkyl group.
Patent CA-2124154-C (CA)
Title: Dental modeling simulator
Inventor: WU CHUANG-JY
IPC: A61C13/00
Filed: 1994-05-24
Granted: 2002-07-23
Abstract: A three-dimensional model of the teeth of a patient is prepared by taking molded impressions of the mandibular and maxillar teeth, placing separately the impressions on a support table define an X-Y plane and detecting the Z distance from a probe by directing a beam of laser light onto the impression and calculating from the pattern of reflected light a centre of the light falling on an area array. The scanning in the X-Y plane is effected continuously and is limited by datum points defining a dental arch. The impression is then tilted and the process repeated and information correlated to provide the three-dimensional model. A partial impression is then taken of both mandibular and maxillar teeth in comparison with datum points to provide information concerning the bite (occlusal) positions of the teeth.   This information is then compared with the full impression to simulate using the digital images movement of the jaw from an open position to the bite (occlusal) position.
Patent CA-2138429-C (CA)
Inventor: IWATA RITSUO
IPC: B27N7/00
Filed: 1994-12-19
Granted: 2001-02-20
Abstract: A molding process including the steps of: shaving lumber to produce wooden strands, applying a binder to the wooden strands, and subjecting the wooden strands, to which a binder has been applied, to forming and to thermal compression molding so as to obtain a molded material; and a smoothing process including the steps of: moisturizing the molding material obtained by means of the molding process, and then abrading a surface thereof, are conducted. The plastic deformation remaining within the wood board is caused to become manifest by means of the forcible moisturizing, and thereinafter, the irregularities present in the surface are removed, so that irregularities do not appear in the wood board which is thus produced over along period of time, and surface smoothness can be maintained.
Patent CA-2139551-C (CA)
Inventor: MATSUDA YOSHINOBU
IPC: C30B25/02
Filed: 1995-01-04
Granted: 2004-12-07
Abstract: A process for crystal growth of III-V group compound semiconductor, which comprises pyrolyzing, in a gas phase, a material consisting of an organometallic compound and/or a hydride in the presence of an organic compound containing an oxygen atom-carbon atom direct bond, used as a dopant to grow a III-V group compound semiconductor crystal layer containing at least aluminum, of high electric resistance. Said process can grow a compound semiconductor layer of high electric resistance by the use of a dopant which enables the independent controls of oxygen concentration and aluminum concentration and which has a small effect of oxygen remaining.
Patent CA-2140401-C (CA)
Inventor: SANTORO RALPH JR
IPC: B61C17/12
Filed: 1995-01-17
Granted: 1999-01-12
Abstract: An apparatus for determining and encoding the position of a control handle on a control stand of a locomotive or other railway transit vehicle utilizing a rotational, absolute encoder rigidly mounted adjacent to the axle to which the control handle is attached for pivotal motion, wherein a drive transfer means interconnecting the control handle and/or axle with encoder has a driving ratio that will permit full partial rotation of the control handle,  which is typically less than 90 degrees,  to rotate  the  encoder  axle  through  a  significantly  greater rotational angle not exceeding 360 degrees, for the purpose of making fuller use of the sensitivity and resolution range of the encoder.
Patent CA-2141789-C (CA)
Title: Process for preparing phenylterephthalic acid
Inventor: GUSTAFSON BRUCE L
IPC: C07C51/43
Filed: 1993-08-02
Granted: 2001-01-30
Abstract: Provided is a facile three step process for preparing 2-phenylterephthalic acid starting with p-xylene, followed by alkylation, dehydrogenation, and oxidation of the methyl groups corresponding to the original p-xylene. The product, 2-phenylterephthalic acid, is useful as an intermediate in the synthesis of polyesters comprised of residues of 2-phenylterephthalic acid.