baber/WOPTO huggingface dataset:
Patent CA-2024298-C (CA)
Title: Flame retardant asphalt composition
Inventor: KIRK DONALD R
IPC: C08L95/00
Filed: 1990-08-30
Granted: 1999-09-21
Abstract: Disclosed is a fire retardant asphalt composition.      The composition comprises: (a) about 40-60% wt asphalt; (b) about 1-20% wt thermoplastic; (c) about 15-40% wt flame retarding agent; and (d) the flame retarding agent comprises: (i) about 65-95% weight ammonium sulfate, (ii) about 1% weight silicone polymer.
Patent CA-2034032-C (CA)
Title: Ozone generation by corona discharge at elevated pressures
Inventor: KARLSON ESKIL
IPC: H01J37/32
Filed: 1991-01-11
Granted: 1999-08-03
Abstract: An ozone generator has first and second electrodes spaced from each other, means for establishing a corona discharge from the first electrode to the second electrode.  An oxygen containing gas at a pressure of 15 to 10,000 psia is passed through said corona discharge area.  A first chamber filled with a first coolant is in pressure and heat exchange relation to said first electrode, and a second chamber filled with a second coolant is in pressure and heat exchange relation to said second electrode.  A pressure equalizing barrier means applies the input gas operating pressure to the cooling fluids in a manner that all the internal cooling fluids follow the input gas operation pressure.
Patent CA-2038536-C (CA)
Title: Air velocity responsive self deploying flexing air dam
Inventor: LOVELACE RICHARD R
IPC: B62D25/20
Filed: 1991-03-18
Granted: 1994-10-25
Abstract: An air dam attaches to the underside of a motor vehicle and extends downwardly therefrom into proximity with the road surface and potential interference with curbs or like obstructions extending above the road surface.  The air dam is comprised of a generally rectangular flexible sheet with an upper edge and a lower edge defining an air deflecting surface therebetween.  A bracket attaches the upper edge of the flexible sheet to the underside of the motor vehicle with the air deflecting surface cantilevered generally horizontally forward from the bracket so that the lower edge is spaced substantially above the road surface. The air deflecting surface is disposed in the oncoming airstream so that the flexible sheet is flexed downwardly progressively in response to the force of air pressure impinging on the air deflecting surface whereby the lower edge remains poised substantially above the road surface to clear obstructions extending above the road surface when the vehicle is traveling at low speeds and extends downwardly into substantial air defecting proximity with the road surface at high vehicle speed.
Patent CA-2039379-C (CA)
Title: Sequential coupling in formation of resinous block copolymers
Inventor: MOCZYGEMBA GEORGE A
IPC: C08G81/02
Filed: 1991-03-28
Granted: 1997-12-30
Abstract: A method for preparing resinous copolymers by sequential charge copolymerization of at least two charges, at least one being a conjugated diene and at least one being a monovinylarene; followed by a charge of a polyfunctional coupling agent; and the final charge being an essentially difunctional coupling agent.
Patent CA-2041926-C (CA)
Title: Polarization converting apparatus and optical instrument having the same
Inventor: TSUJI SADAHIKO
IPC: G02B27/28
Filed: 1991-05-06
Granted: 1995-12-12
Abstract: This specification discloses a polarization converting apparatus having means emitting non-polarized light, and polarizing means having a light incidence surface and a light emergence surface, the polarizing means receiving the non-polarized light by the light incidence surface and causing polarized light to emerge from the light emergence surface, the size and shape of the light incidence surface being similar to the size and cross-sectional shape of the non-polarized light.          The specification also discloses an optical instrument having such apparatus.
Patent CA-2055344-C (CA)
Title: Membrane switch and fabrication method
Inventor: BURK ALAN M
IPC: G06F3/041
Filed: 1991-11-12
Granted: 1995-05-09
Abstract: A membrane switch (10) having a top membrane (12) with a lower conductive surface (16), a bottom membrane (14) with an upper conductive surface (18), and a dieletric intermidiate circuit spacer (20) disposed therebetween. The intermidiate circuit spacer includes a central aperture (24) and defines upper and lower surfaces (28 and 32). First y-axis electrodes (26) are formed on the upper surface of the intermidiate circuit spacer, and second x-axis (30) electrodes are formed on the lower surface of the intermidiate circuit spacer. Conductive adhesive (58, 64) is applied between the intermidiate circuitspacer and the top and bottom membranes to secure the intermidiate spacer in place with the x- and y-axis electrodes in electrical contact with the top and bottom membranes, respectively.
Patent CA-2057884-C (CA)
Title: Digitial linear measuring device
Inventor: CRANE R STEPHEN
IPC: G01B11/02
Filed: 1990-06-01
Granted: 1997-09-30
Abstract: A digital linear measuring device includes a housing (10), a reel located within a housing and a measuring tape (20) wound on the reel. The measuring tape is extendable through an opening (9) in the housing as the reel is rotated. An incremental measuring means (50) is associated with the reel for generating incremental measuring data and an absolute measuring means (30) cooperates with measuring tape for generating absolute measurement data as the measuring tape is extended. A processing unit is responsive to both the incremental measurement data and to the absolute measurement data for generating output reflecting linear extension of the measuring tape from the housing, and a display (23) is responsive to the processing unit for displaying information reflecting the linear extension of the measuring tape from the housing.
Patent CA-2060393-C (CA)
Title: Carbamic acid derivatives and method for preparing the same
Inventor: TAKANO YASUO
IPC: A61K31/50
Filed: 1992-01-30
Granted: 2002-03-12
Abstract: Anti-dementia medicaments comprising a carbamic acid derivatives or a phamaceutically acceptable acid addition salt thereof having anti-amnesic activity are provided.      The carbainic acid derivatives are represented by the general formula (1) (see formula I) wherein Ar denotes an aromatic heterocyclic ring or its benzene-condensed ring, which may have at least one substituent, or a phenyl group which may have at least one substituent, R1 denotes a hydrogen atom or a lower alkyl group, R2 denotes a lower alkyl group which may be substituted with a halogen atom, a phenyl group which may have at least one substituent, a naphthyl group, or a five- or six-membered heterocyclic ring and its benzene-condensed ring; X and Y, which may be the same or different, each denote a sulfur atom or an oxygen atom.
Patent CA-2061388-C (CA)
Title: Loudspeaker telephone device comprising a novel noise suppressing circuit
Inventor: TOMIYORI YUTAKA
IPC: H04M9/08
Filed: 1992-02-18
Granted: 1996-06-18
Abstract: Controlled by a signal level produced by a microphone (12), a noise suppressing circuit (25) supplies a first attenuator (16) with a local level which is equal to the signal level and is suppressed to a predetermined output level when the signal level is lower and higher than a predetermined input level.          Cooperating with a drive level produced by a second attenuator (17) to drive a loudspeaker (13), the local level makes a comparator unit (21-23) produce a control signal for making the first attenuator give smaller and greater amounts of attenuation to the signal level with the drive level rendered by the second attenuator low and high when positive and negative values are had, respectively, by an input difference equal to the local level less the drive level,  Preferably, the local level is suppressed by a level difference had by the signal level above the predetermined input level,
Patent CA-2069779-C (CA)
Title: Video teleconferencing system
Inventor: WATANABE SATORU
IPC: H04N7/14
Filed: 1992-05-28
Granted: 1995-10-24
Abstract: A video teleconferencing system includes a plurality of terminals, a server including a storage for storing input information, and a network coupling the terminals to the server, where the input information is supplied from each terminal to other terminals from the server.  Each terminal includes an input part including a first input part for inputting voice information and a second input part for inputting image information, where the voice information and the image information form the input information of the input part and the second input part generates a front image and an oblique image of a certain user of the terminal to which the input part belongs, a display part for displaying images of users of the terminals other than the terminal to which the display part belongs, and a processing part including a first part for accepting specifying information which specifies a terminal, and a second part for determining a kind of image to be displayed on the display part of each terminal other than the terminal to which the processing part belongs.
Patent CA-2072903-C (CA)
Title: Method of manufacturing polyalkyl methacrylate macromonomers, and use of same in the manufacture of comb polymers
Inventor: KERSCHER VOLKER
IPC: C08F299/00
Filed: 1992-07-02
Granted: 1998-08-18
Abstract: A macromonomer of Formula I:     (see fig. I) wherein R1 is hydrogen or methyl, X is a biradical, R2 is an alkyl group of 1-40 carbon atoms and n is such that the molecular weight of the macromonomer ranges from 500-100,000 Dalton is prepared by transesterifying a monomeric ester of Formula II     (see fig II) where R3 represents an alkyl group with 1-8 C atoms, with a hydroxyl-group-terminated polyalkyl methacrylate of Formula III     (see fig. III) where X and R2 have the same meanings as above, and n' = n; with the elimination of alcohol HOR3, thereby resulting in formation of the compound of Formula I.
Patent CA-2075157-C (CA)
Title: Cultured milk beverage and production process thereof
Inventor: KUMA YOSHIHARU
IPC: A23C9/123
Filed: 1992-07-31
Granted: 2001-07-03
Abstract: A cultured milk beverage contains at least 3 x 10 8 cells/m~ of at least one type of lactic acid bac-terium selected from the group consisting of Lactobacillus casei, Lactobacillus acidophilus, Lactobacillus helveticus arid Lactobacillus ,jugurti and a mixture of a galactooligosaccharide, which is represented by the following formula:        Gal-(Gal)n-Glc wherein Gal means a galactose residual group, Glc denotes a glucose residual group, and n stands for an integer of 1-4, and a galactosyldisaccharide represented by the following formula:      Gal-R   wherein R means a galactose residual group or a glucose residual group, and Gal has the same meaning as defined above, said galactosyldisaccharide being other than lactose. The cultured milk beverage can be produced providing the lactic acid bacterium and culturing the same to a population of at least 3 x 10 8 cells/m~ of the cultured milk beverage and then adding the mixture of the galactooligosaccharide and the galactosyldisac-charide to the resultant culture.
Patent CA-2077981-C (CA)
Title: Blood collection tube assembly
Inventor: WILLIAMS JOEL L
IPC: A61J1/05
Filed: 1992-09-10
Granted: 1999-07-27
Abstract: The present invention includes a plastic container deposited with a silicon oxide based film and a method for depositing a silicon oxide based film as a barrier. The film is useful  for providing an effective barrier against gas permeability in containers and for extending shelf-life of containers,  especially plastic  evacuated blood collection devices.
Patent CA-2088549-C (CA)
Title: Surgical dilator
Inventor: ORR DOUGLAS P
IPC: A61M25/06
Filed: 1993-02-01
Granted: 1997-12-16
Abstract: A dilator is disclosed for dilating puncture sites of vessel  into which a catheter  or  the  like  is to be inserted.    The  dilator  is  adapted  to  prevent  the connection   to   or    insertion   of   an   intravenous administration device without first removing the dilator and to have an ergonomic hub to fit between the thumb and forefinger of a human adult.
Patent CA-2089220-C (CA)
Title: Railway signalling system
Inventor: NEWMAN GREGORY DAVID
IPC: B61L27/00
Filed: 1993-02-10
Granted: 2001-09-18
Abstract: A railway signalling system is described which comprises control means for controlling the movements of railway vehicles on a railway track, including storage means for storing data defining physical characteristics of the railway track and the locations of the vehicles, first processing means for processing the data stored in the storage means to determine permissible movements of the vehicles, and first communication means for transmitting to the vehicles movement data defining the vehicles permissible movements; and protection means carried by at least one of the vehicles for causing the vehicle to move under the control of the control means, comprising second communication means for receiving the said movement data relating to the vehicle, second storage means for storing geographical data defining physical characteristics of the railway track, second processing means for processing the movement data in dependence on the geographical data to determine an operating speed for the said vehicle, and operation means for controlling the vehicle to travel at the determined operating speed.
Patent CA-2090818-C (CA)
Title: Markers for petroleum, method of tagging, and method of detection
Inventor: FRISWELL MICHAEL R
IPC: C10L1/18
Filed: 1993-03-02
Granted: 2001-03-27
Abstract: Liquid petroleum products are tagged with a marker which is a compound or mixture of compounds having the formula:    wherein R1 is C1-C6 alkyl, and R2 and R3 are nothing or -O-(C1-C3 alkyl).
Patent CA-2096132-C (CA)
Title: Process and device for guiding the automatic insertion of a male part into a female part
Inventor: SORIANO LOUIS
IPC: H05K13/04
Filed: 1991-11-14
Granted: 1999-08-24
Abstract: A guiding method and device for automatically inserting a male piece into a female piece, these pieces being generally cylindrical or prismatic with axis (zz') and mounted on supports for moving them relative to each other along three orthonormal translational axes, one of which is parallel to the axis (zz') and forms the insertion axis. Said male piece (1) is flexibly in rotation mounted onthe other two axes relative to its support (3) and the device includes a guide (4) moving relatively along a plane (PP') which is perpendicular to the axis (zz') above the socket (2) of the female piece, so that it covers a portion of the opening thereof. When said male piece (1) is brought into abutment with said guide, it tilts at a predetermined angle.
Patent CA-2098657-C (CA)
Inventor: PATIN PIERRE
IPC: B66B23/26
Filed: 1993-06-17
Granted: 2003-04-22
Abstract: The variable-speed conveyor element (transportation device) applied to a handrail, consists of separate handgrips connected together by elements of variable length themselves acting as elements of the handrail, each of these elements consisting of a continuous flexible link such as a belt or cable, to which link are fixed contiguous blocks which prevent or limit the flexing of the element in one sense, the blocks being equipped with bosses and recesses which allow them to nest in one another in order to transmit loads. <IMAGE>
Patent CA-2099042-C (CA)
Title: Fuel nozzle
Inventor: BARDHAN BIBHUTI B
IPC: B67D7/54
Filed: 1993-06-23
Granted: 2001-10-16
Abstract: The nozzle is used to fill the tank of a motor vehicle with fuel. The nozzle has an outer pipe disposed concentric-ally about the inner pipe through which fuel flows. There is an annular space between the outer and inner pipes. The end of the outer pipe has an opening where fumes from the motor vehicle tend to accumulate and a fan draws those fumes into the annular space and discharge them to a safe location remote from the motor vehicle and the nozzle.
Patent CA-2104278-C (CA)
Title: Optical integrated circuit having light detector
Inventor: OKADA KUNIAKI
IPC: H01L31/0232
Filed: 1993-08-17
Granted: 1996-12-17
Abstract: An optical integrated circuit is disclosed. The optical integrated circuit includes: a dielectric waveguide having at least a waveguide layer for trans-mitting light in a first direction; a first reflector for reflecting the light in a substantially opposite direction to the first direction, the first reflector being formed on an end face of the waveguide layer; a grating coupler having a grating for diffracting at least a part of the light in a second direction which is different from the first direction, the grating coupler being formed at a surface of the waveguide layer; and a light detector for detecting the diffract-ed light, the light detector being optically connected with the dielectric waveguide.
Patent CA-2104488-C (CA)
Title: High yield sodium hydrosulfite generation
Inventor: MUNROE DAVID C
IPC: C01B17/66
Filed: 1993-08-20
Granted: 1997-01-28
Abstract: An improved high yield process and apparatus for producing sodium hydrosulfite by simultaneously contacting a first reaction mixture of sodium borohydride, sodium hydroxide, and water with a second reaction mixture of an acidic sulfur-containing compound or precursors thereof used in producing sodium hydrosulfite from sodium borohydride.
Patent CA-2106035-C (CA)
Title: Non-stick automotive gaskets
Inventor: VIKSNE GEORGE J
IPC: C09K3/10
Filed: 1993-09-13
Granted: 2000-08-08
Abstract: A non-stick automotive gasket which comprises a resilient material having a polymeric fluorocarbon coating thereon which is obtained by impregnating the resilient material with a saturant having dispersed therein polymeric fluorocarbon particles.
Patent CA-2111808-C (CA)
Inventor: ANDERSON DANA ZACHARY
IPC: G02B5/18
Filed: 1993-12-17
Granted: 1999-11-23
Abstract: The invention involves a method for making Bragg gratings in glass optical fibers, or other glass optical waveguides (10), which is relatively insensitive to perturbations in the actinic light used for processing. This method is suitable for mass production and lends itself well to the manufacturing environment. The inventive method involves first providing an optical phase grating (20). An interference pattern is generated by impinging a single light beam (30) on the grating. The optical waveguide to be processed is exposed to this interference pattern, leading to the formation of a Bragg grating in the waveguide.
Patent CA-2112965-C (CA)
Title: Siloxy-aluminoxane compositions
Inventor: SANGOKOYA SAMUEL AYODELE
IPC: C08G77/58
Filed: 1994-01-06
Granted: 2005-08-09
Abstract: A siloxy-aluminoxane composition which is the reaction product of an alkyldisiloxane and an aluminoxane is provided. The compositions in combination with metallocenes of transition metals form catalysts which can be used in the polymerization of olefins such as ethylene.
Patent CA-2114347-C (CA)
Inventor: SCHOLL HANS-JOACHIM
IPC: C08K5/29
Filed: 1994-01-27
Granted: 2005-01-04
Abstract: Organic carbodiimides are produced by carbodiimidization of isocyanate groups with catalysts of the phospholine type. At the end of the carbodiimidization reaction, the catalyst system is removed by introducing carbon dioxide in vacuo at temperatures of from about 100 to about 250°C. The carbodiimides produced by this process are particularly useful as stabilizers for plastics.
Patent CA-2117201-C (CA)
Title: Swash plate pump
Inventor: HENG THOMAS
IPC: F04C13/00
Filed: 1992-09-08
Granted: 2002-07-23
Abstract: The invention concerns a swash pump designed for the trans-fer of sensitive, time-critical fluids in the food-technology or bio-technology field. All the spaces (11, 15, 16) with which the fluid be-ing pumped comes in contact are included in the pumping path.    Since fluid is flowing continuously through the spaces (11, 15, 16) which come in contact with the fluid, the fluid cannot settle in any one place. This makes it possible to clean the pump by simply flushing out the pump with the pump still fitted in place,
Patent CA-2119057-C (CA)
Title: An aqueous liposome system and a method for the preparation of such a liposome system
Inventor: HAGER JORG-CHRISTIAN
IPC: A61K9/127
Filed: 1994-03-14
Granted: 2004-01-20
Abstract: An aqueous liposome system is descibed, which comprises optionally besides a non-toxic organic solvent a further non-phospholipidic substance , said non-phospholipidic subsance being a bile acid, a salt of a bile acid, a bile acid derivative and/or a salt of a bile acid derivative. The mass ratio of the phospholipid to the further non-phospholipidic substance varies between 0.001 and 0.1.    According to a method for the production of the liposome system initially the phospholipid is dissolved or dispersed in an organic solvent together with the at least one non-phospholipidic substance at a mass ratio of 1:0.001 to 1:0.1, thereafter the. solvent is evaporated partially or completely from the solution or the dispersion and hereafter water is added to foam the liposome system.
Patent CA-2121441-C (CA)
Title: Counter cross flow for an automatic tray processor
Inventor: ROSENBURGH JOHN HOWARD
IPC: G03D3/08
Filed: 1994-04-15
Granted: 1998-12-08
Abstract: A low volume photographic material processing apparatus that utilizes a narrow horizontal processing channel.  The channel is formed by a repeating combination of squeegee pinch rollers and impingement slot nozzles.  Photographic processing solution is introduced into opposite ends of alternating impingement slot nozzles, having delivery channels and the squeegee pinch rollers are used to remove the processing solution from the photosensitive material and provide transport of the photosensitive material.  Solution level control is achieved by drains positioned below the tops of the upturned sections.  The slot nozzles and the pinch rollers work interactively to break down the chemical barrier layer.
Patent CA-2130569-C (CA)
Inventor: SYNOSKY STEVEN P
IPC: A23G4/04
Filed: 1993-03-02
Granted: 1998-06-16
Abstract: A wax-free, low moisture chewing gum is provided which is devoid or substantiall y free of wax. The chewing gum also contains less than 2.0 weight percent water and comprises a wax-free gum base wh ich includes about 20 to about 60 weight percent synthetic elastomer, 0 to about 30 weight percent natural elastomer, about 5 to about 55 weight percent elastomer plasticizer. about 4 to about 40 weight percent filler, about 5 to about 40 weight percent so ftener, and optional minor amounts of miscellaneous ingredients such as colors, antioxidants, etc. Low moisture chewing gum composit ions which contain the wax-free gum base are also provided.
Patent CA-2137662-C (CA)
Title: Regeneration of acetylene converter catalysts by hydrogen stripping
Inventor: HUANG YAO-JHY R
IPC: C07C7/167
Filed: 1993-06-18
Granted: 1998-12-01
Abstract: An improved method for regenerating acetylene hydrogenation catalysts, particularly palladium based catalysts which have been used to remove acetylenic contaminants from ethylene, which method does not require an oxygenation or other pretreatment step, comprises stripping the spent catalyst with hydrogen at 315-400°C and a linear hydrogen-containing gas velocity of at least 15.2 cm/second, to achieve substantially complete regeneration.
Patent CA-2145573-C (CA)
Inventor: VAN HAAG ROLF
IPC: D21G1/00
Filed: 1995-03-27
Granted: 2000-05-16
Abstract: An apparatus and method for treating a sheet material (3) with an arrangement of rollers (6, 7), including at least one heated roller (8, 9), which defines at least one roller gap through which the sheet of material is passed and acted upon with pressure and/or elevated temperature. A housing (32) surrounds the roller arrangement (6, 7) and the treatment takes place in an environmental atmosphere, the temperature and/or humidity of which can be adjusted to a specified value. A roll of the sheet material is subjected to pretreatment to provide it with desired temperature and humidity conditions before entering the housing (32).