baber/WOPTO huggingface dataset:
Patent CA-2042352-A1 (CA)
Title: Broadband optical detection of transient motion from a scattering surface by two-wave mixing in a photo-refractive crystal
Inventor: MONCHALIN JEAN-PIERRE
IPC: G01N21/25
Filed: 1991-05-10
Abstract: A method and apparatus for optically detecting transient motion from a scattering surface.  A laser beam having a predetermined frequency  is directed onto such a surface to thereby scatter  the laser beam and produce a scattered  laser  beam  defining  an  optical  wavefront  and having an optical spectrum with a central peak at the laser frequency and a sideband on either side of the central peak.          The scattered laser beam is caused to interfere inside a photorefractive crystal with a pump beam derived from the laser beam so as to form an index of refraction grating diffracting the pump beam into a reference beam having an optical wavefront substantially matching the wavefront of the scattered laser beam  and an optical spectrum with a single peak at the laser frequency and no sidebands, whereby to produce at an exit face of the photorefractive crystal a transmitted scattered laser beam and a diffracted reference beam interfering with one another.  The interfering beams at the exit of the photorefractive crystal,   or polarization components thereof,  are at least temporarily out of phase, thereby  obtaining  an  optical  signal  sensitive  to  phase perturbations  produced  by  the  transient  motion,   which optical signal is detected and converted into an electrical signal representative of the transient motion. The invention is particularly useful for detecting small surface deformations or displacements of a material subjected to ultrasonic energy, enabling displacements ranging from a fraction of 1.ANG. to a few hundred .ANG. to be detected with a large étendue or light gathering efficiency and a broad frequency bandwidth extending from frequencies as low as 1 KHz, and even below.
Patent CA-2042436-A1 (CA)
Title: Apparatus for carrying mobile means of inspection in the interior of a tubular body
IPC: G01N29/24
Filed: 1991-05-13
Abstract: An apparatus is provided for carrying mobile means of inspection in the interior of a tubular body, the means of inspection being adapted to emit and receive at least one sweeping radiation beam for inspection purposes.         The apparatus includes a pair of carrier assemblies, coupled together by a bridge which has at least two linking pieces and a coupling piece therebetween. The apparatus also has a reflector with at least as many reflection planes as the bridge has linking pieces, each of which reflection planes defines a transmission path. The reflector is rotatable about a longitudinal axis through the carrier assemblies, the reflection planes being so arranged that at least one transmission path extends to the interior of the tubular body at any one time.   Part of each transmission path is longitudinal and part is perpendicular to the longitudinal axis. The reflection planes are arranged so as to partially overlap.
Patent CA-2043185-A1 (CA)
Title: Procede de realisation de tole de structure multicouche dite tole sandwich et produit obtenu par le procede
Inventor: MANTEL MARC
IPC: B32B37/10
Filed: 1991-05-24
Abstract: Société dite : UGINE Aciers de Châtillon et Gueugnon Procédé de réalisation de tôle de structure multicouche dite tôle sandwich et produit obtenu par le procédé TECHNIQUE DU CONTENU DE L'INVENTION Procédé de fabrication de tôle de structure multicouche dite tôle sandwich et tale obtenue par le pocédé, composée de feuilles métalliques laminées formant substrat, liées entre elles par une âme qui assure la cohésion de la structure, procédé dans lequel on enduit au moins une feuille métallique d'une suspension constituée de particules d'un polymère ayant des propriétés d'adhésivité dans un milieu de dispersion aqueux et/ou organique, on applique sur la feuille enduite avec la suspension une autre feuille pour former une structure multicouche, puis on presse la structure et on élève sa température pour provoquer l'évaporation partielle ou totale du milieu aqueux et/ou organique et l'agglomération des particules contenues dans la suspension. Fig. Néant.
Patent CA-2048256-A1 (CA)
Title: Parallel arm floating hoe
Inventor: PTACEK TIMOTHY J
IPC: A01C5/06
Filed: 1991-07-31
Abstract: Abstract of the Disclosure A parallel arm floating hoe is provided for opening the soil and is mounted on a frame which is spaced above the soil while the hoe is free to pivot in a vertical plane. A mounting bracket is provided which pivotally mounts upper and lower arms of the hoe, which are in turn pivotally mounted to a hoe assembly mounting a soil engaging tool. The hoe is devoid of any member which follows the surface of the soil to define the depth of penetration of the tool, enabling the hoe to float freely in the soil. The depth of penetration of the soil penetrating point is determined by the height of the frame above the soil and the condition of the soil beneath the surface, thus enabling the point to float freely according to soil conditions, whereby the point will seek a depth in part conditional upon subsurface soil conditions.     (Docket No. 21356)
Patent CA-2048389-A1 (CA)
Inventor: SUNG HUNG-TZU
IPC: A01G9/14
Filed: 1991-08-02
Abstract: A greenhouse, to be provided in a window opening, includes an enclosed housing, a watering control means, a temperature control system, a humidity control means, and a lighting system. The enclosed housing having a plurality of window panes respectively mounted thereof. The watering control means includes a liquid receptacle, a water flow control valve, a pipe member, and a watering control circuit thereof. The lighting means includes a plurality of lamps to assist the plants to process the photosynthetic reactions, and a plurality of reflectors which may be supplement lighting devices and may produce a kaleidoscopic effect after a series of reflections of the plants.
Patent CA-2049376-A1 (CA)
Title: Diamond alpha particle detector
Inventor: JONES BARBARA L
IPC: G01T1/16
Filed: 1991-08-16
Abstract: ABSTRACT            A radiation detector element which is optimised for the detection of a particles comprises a layer of diamond or diamond-like carbon with first and second electrical contacts applied to the surface of the layer. The layer is formed on a silicon substrate, together with an electronic circuit. Each of the contacts defines a rectifying junction with the layer, thus defining a back-to-back diodic structure, having junction characteristics which are responsive to the intensity of radiation incident on the detector element. The electronic circuit is powered by a battery or a solar cell, and activates an LCD indicator if the intensity of the incident radiation exceeds a predetermined level. The radiation detector element and the electronic circuit are housed on a card which is sized similarly to a conventional identification card.
Patent CA-2049823-A1 (CA)
Title: Thixotropic compositions
Inventor: FRANCIS ROBERT S
IPC: C08J3/20
Filed: 1991-08-26
Abstract: Case 7589(2) ABSTRACT OF THE DISCLOSURE                      THIXOTROPIC COMPOSITIONS      This invention relates to a thixotropic laminating resin composition comprising an acid hardenable phenol-aldehyde resin, a highly dispersed hydrophobic amorphous silica and a viscosity modifier wherein the composition has a specified viscosity. Composites laminated with the above composition have improved dimensional stability and are resistant to combustion or smoke emission.
Patent CA-2051006-A1 (CA)
Title: End-column electrical and electrochemical detector for capillary zone electrophoresis
Inventor: HUANG XIAOHUA
IPC: G01N27/447
Filed: 1991-09-09
Abstract: Abstract of the Disclosure Electrical  and  electrochemical  end-column detectors   are   provided   in   which   the   sensing microelectrode is placed at the outlet of the separation capillary. The novel design minimizes the electrical interference caused by the applied high voltage during CZE separations, and provides for detectors that are easy to construct,  sensitive,  reliable,  and easy to operate.
Patent CA-2051742-A1 (CA)
Title: Propulsion control system central processing unit board
Inventor: MOLYNEAUX WILLIAM F
IPC: B60L9/00
Filed: 1991-09-18
Abstract: ABSTRACT     For use in a propulsion control system, a microprocessor based central processing unit board includes both Multibus I and Multibus II interfaces.  Multibus I master interface and Multibus slave interface controllers are designed for high data throughput by using programmed logic design (PLD) technology.  In addition, the need for latching of data transceivers used in conventional Multibus I designs is eliminated.  The Multibus II interface is removable.
Patent CA-2051835-A1 (CA)
Title: Method of bit rate de-adaption using the ecma 102 protocol
Inventor: SPENIK JOHN W
IPC: G06F13/38
Filed: 1991-09-19
Abstract: ABSTRACT     There is disclosed a method of converting adapted data to user data using the ECMA-102 standard.  The user data is transmitted to a user terminal at a first data rate, the adapted data is received at a second data rate, and the second data rate is greater than the first data rate.  The adapted data contains a start element and an unknown number of stop elements while the user data con-tains a start element and a minimum number of stop ele-ments. The method involves the steps of:  (1) Converting the adapted data into a frame; (2) Storing the frame in a receive buffer; (3) Dissecting the frame into an interme-diate data; (4) Removing the first start elements and the unknown number of stop elements from the intermediate data; (5) Storing the intermediate data in a transmit buffer; (6) Converting the intermediate data to the user data by adding the second start element and the minimum number of stop elements; and (7) Transmitting the user data to the user terminal.
Patent CA-2055726-A1 (CA)
Title: Article incorporating at least two compartments intended to contain various objects
Inventor: ROBINET JEAN-LOUIS
IPC: A45C7/00
Filed: 1991-11-18
Abstract: ABSTRACT OF THE DISCLOSURE      A bag is disclosed, which comprises at least one small inner pouch housed in an outer envelope and fixed thereto, the small pouch and the outer enve-lope defining two openings for access closed independent-ly of each other by rapid closure means (slide faste-ners, interlocking elements, or the like), capable of joining the lips bordering said openings. According to the invention, the inner pouch is integral with one side and a top of the outer envelope in order to define a first opening for access, of which the lips may be joined by a first rapid closure means, this top and the other side of the envelope defining a second opening for access thereto, the lips of which opening may be joined by a second rapid closure means.
Patent CA-2055889-A1 (CA)
Title: Animal trap
Inventor: LEE DONALD R
IPC: A01M23/34
Filed: 1991-11-20
Abstract: An animal trap having a pair of arcuate arms connected by a flexible cable. In the set condition of the trap, the arms are spread apart. When an animal steps on a trigger in the space between the spread apart arms, the trap is sprung and the arms are moved together by a swinging frame. A clamping plate on the swinging frame cooperates with the cable in gripping the foot or leg of the animal. The clamping plate is a broad-faced member provided with a concave central section which closes gently on the limb of the animal without causing unnecessary injury.
Patent CA-2057200-A1 (CA)
Inventor: LANGER MATTHEW E
IPC: C08G63/676
Filed: 1991-12-06
Abstract: The present invention pertains to polymeric whitening agents which contain both a fluorescent portion and a hydrophilic portion.  These copolymers may be used on certain substrates, such as polyester or soiled cottons, for a greater brightening then previously known.
Patent CA-2057465-A1 (CA)
Inventor: JONES RANDALL S
IPC: A01D78/00
Filed: 1991-12-11
Abstract: A powered rake for windrowing debris for subsequent collection is provided which includes a main frame for coupling to a tractor, a subframe mounted for pivotal movement relative to the main frame about an upright pivot axis, a roller pivotal with the subframe to an oblique angle relative to the direction of travel, and a material control member including a blade extending along the length of the roller and presenting a gap therebetween. The subframe is preferably pivotal for presenting the roller at an oblique angle to the right or left with respect to the intended direction of travel, thereby permitting the powered rake hereof to continuously window the debris in the path of the roller. The roller is rotatably mounted on a pair of downwardly and forwardly extending legs which present substantially open areas outboard of the roller to permit debris to pass freely outboard into a windrow without any obstruction from the frame or subframe supporting the roller.
Patent CA-2059115-A1 (CA)
Title: Supported-lip low interference metal stab seal
Inventor: DOWNES STEPHEN
IPC: E21B33/04
Filed: 1992-01-09
Abstract: An improved metal-to-metal seal of a generally U shaped configuration which utilizes an enlarged seal portion on the interior and exterior of the inner and outer seal legs to effect an initial seal. The initial interference of the seal legs is maintained by disposing a solid support ring in the annulus between the seal legs with holes in the support ring to prevent pressure lock and to balance pressure distribution within the seal. The invention is shown in a unidirectional form with a single pair of seal legs extending axially from an annular base and in a bidirectional form with a pair of seal legs extending axially in both directions from an annular base. An alternative form of the invention discloses a support member of U shaped configuration which allows greater flexibility in the seal legs while maintaining initial sealing contact. This support member also has holes to prevent pressure lock and to balance pressure distribution within the seal. The seal legs are manufactured of a relatively softer material while the support member is manufactured of a higher strength material to ensure an initial interference type seal.
Patent CA-2059125-A1 (CA)
Title: Ohmic contacts for gaas and gaa1as
Inventor: GILL SUKHDEV S
IPC: H01L29/43
Filed: 1990-09-07
Abstract: A low resistance ohmic contact for n-type GaAs and GaAlAs is provided by Ni-Ge-Au structure (1). The contact is suitable for device substrates (2) which have carrier concentrations of between about 1017 cm-3 and about 1019 cm-3. The ohmic contact has a nickel layer of between 40 Å and 200 Å deposited on the substrate, followed by a Ge deposition (4) of between 150 Å and 400 Å and finally an Au deposition (5, 6) of greater than 4000 Å. The Au layer is preferably deposited in two separate layers of between 500 Å and 1000 Å, (5), and greater than 4000 Å, (6). A preferred construction (1) is 50 Å/200 Å/800 Å + 5000 Å (Ni/Ge/Au + Au). The ohmic contact deposition must be followed by annealing, typically at temperatures between 300 ·C and 500 ·C for times of between 1 second and 200 seconds. The preferred annealing conditions are a temperature of 400 ·C maintained for 15 seconds.
Patent CA-2059574-A1 (CA)
Title: Point placement method for use in a three-dimensional automatic mesh generation system
Inventor: MESHKAT SIAVASH N
IPC: G06G7/38
Filed: 1992-01-17
Abstract: ABSTRACT      A method is described for producing a set of points for a mesh of finite elements for a body to be analyzed, the body exhibiting boundaries and faces.   The method comprises the steps of:   producing an initial mesh of elements for the body, each element having a plurality of vertices and edges; for each vertex in a first subset of the  vertices,  finding  points  of  intersection  (POI) between a sphere of radius R, centered at a vertex being considered, and the boundaries and edges; determining if a found POI is either on or within the boundaries of the body and exhibits more than a minimum clearance distance from the boundaries,  and vertices,  any such POI being classified as a selected POI; inserting a selected POI in the initial mesh; and repeating the aforementioned steps for all POI's in the first subset and then proceeding to succeeding subsets of vertices until all POI's in all subsets have been considered.
Patent CA-2062531-A1 (CA)
Title: Chain design
Inventor: MOTT PHILIP J
IPC: F16G13/06
Filed: 1992-03-09
Abstract: A chain (10) with a plurality of links (13) positioned in substantially parallel relationship with respect to each other where the links (13) having an aperture (l5) located at each end. An end region (14) of the links (13) extends from the aperture (15) to the end of the links (13). A plurality of connecting elements (19) connect together adjacent links (13). The links (13) are interconnected in a three-link arrangement in which similarly located end regions (14) of the links (13) are offset and the pattern repeats evey three links. The connecting elements (19) pass through the aperture (15) on one end of one of the Links (13) and the aperture (15) on the opposite end of the adjacent links (13). The end region (14) of the links (13) extends substantially to the adjacent connecting element (19) whereby the material in the- end region (14) of the links (13) is increased and substantially increases the strength of the chain (10).
Patent CA-2062774-A1 (CA)
Title: Sliding pocket door for aircraft use capable of non-destructive blow-out
Inventor: SPRAGGINS MICHAEL R
IPC: B64C1/14
Filed: 1990-07-06
Abstract: ABSTRACT        A sliding pocket door adapted for aircraft use comprising two generally tabular door segments and each laying in a common sliding plane and each attached to a carrier frame which is mounted to an aircraft bulkhead. Each door segment is attached to its carrier frame by unique hinges that allow the door segment to rotate out of the sliding plane while simultaneously dropping along their axes of rotation.  This rotation will allow a non-destructive depressurization of the doors, for example during rapid decompression in the aircraft.
Patent CA-2063158-A1 (CA)
Title: System for detecting an edge of an image
Inventor: ENOMOTO HAJIME
IPC: H04N11/06
Filed: 1992-03-16
Abstract: A system for correctly detecting an edge of an image in which a first edge comprises corrected by a second edge, which is an edge of an error between an original image and a reproduced image obtained by using the first edge.
Patent CA-2065847-A1 (CA)
Title: Rotavirus reassortant vaccine
Inventor: PLOTKIN STANLEY A
IPC: C12N7/00
Filed: 1991-07-25
Abstract: The present invention provides novel rotavirus. reassortants, vaccines employing the novel reassortants and methods for their preparation and administration. The reassortant contains the gene encoding the v.p.4 neutralization antigen of a selected hu-man rotavirus and/or the gene encoding the v.p.7 neutralization antigen of a selected human rotavirus, with remaining genes be-ing provided solely from the bovine rotavirus WC3 strain, or from both the human and bovine strains.
Patent CA-2067097-A1 (CA)
Title: Electrolytic finishing method of finishing a bevel gear and a method of machining an electrode used for the electrolytic finishing method
Inventor: KUWABARA YOUHEI
IPC: B23H9/00
Filed: 1991-07-03
Abstract: ABSTRACT      An intermediate electrode is molded by using a model gear as a mold, and finished by electrolytic machining with the model gear for forming an electrode.          The electrode and a work are positioned in an electrolyte tank to form a predetermined gap between the electrode and the work, and the work is finished.
Patent CA-2069001-A1 (CA)
Title: Method for the preparation of a catalyst component for the polymerization of olefins, a polymerization catalyst component produced by the method and use of the same
Inventor: SORMUNEN PEKKA
IPC: C08F10/00
Filed: 1990-11-20
Abstract: The invention relates to a method for the preparation of a solid procatalyst composition for a catalyst system intended for the polymerization of olefins, wherein a magnesium halide, such as magnesium chloride, is dissolved and/or slurried in a mono-carboxylic acid alkyl ester, such as ethyl acetate, is impregnated into a support material, dried, treated with an organometallic compound or a silicon compound and thereafter with a transition metal compound. The invention also relates to such a procatal-yst composition and its use together with a cocatalyst for the polymerization of olefins. According to the invention it has been possible to increase the activity of the catalyst composition by using a silanated support material, such as silanated silica, which is then treated with an organometallic or silicon compound before treatment with a transition metal compound. The silanated silica is preferably a silicon dioxide which has been heat-treated at 100-200 °C and thereafter treated with hexamethyldisilazane and contains carbon 3-6 %. The organometallic compound is preferably an aluminum alkyl compound, such as triethylaluminum, and the transition metal compound is preferably titanium tetrachloride.
Patent CA-2069102-A1 (CA)
Title: In-line noise attenuation device
Inventor: LEE CARLOS
IPC: F02M35/12
Filed: 1990-11-09
Abstract: The device (10) has en entrance (16) and an exit (18) with two low-restriction venturi sections (20, 22) placed in parallel between the entrance and exit. The entering gas flow is separated into two parts, one to pass through one venturi section and the other to pass through the other venturi section. The two parts reunite as they leave the exit. The venturi sections are substantially identical and each contains at least one venturi. The two sections are axially offset from each other by a distance that is equal to one-quarter of the wavelength of the frequency of a principal noise component so that particular noise frequency is phase shifted 180 degrees by one venturi section relative to the other with resulting cancellation and significant noise attenuation. Usage in an air induction system of an internal combustion engine for attenuating noise from the engine is illustrated. The device is capable of functioning irrespective of the direction of noise in relation to the direction of gas flow.
Patent CA-2069138-A1 (CA)
Title: Method and composition for precipitation of atmospheric water
Inventor: MENTUS SLAVKO
IPC: C06D3/00
Filed: 1992-05-22
Abstract: A method for precipitating atmospheric water by means of multicomponent aerosols, including iodide based complex multicomponent aerosol compositions. The compositions comprise a solid mass formed by a compacted mixture of silver iodide and the iodides, iodates, and periodates of alkali metals, lead, copper, barium; ammonia, barium chromate, and selected oxidizers such as ammonium perchlorate, and fuels such as poly-p-phenylene, phenol formaldehyde resin, epoxide resin, and shellac and mixtures thereof. The compositions, upon burning, produce an aerosol effective to promote atmospheric water precipitation.
Patent CA-2069511-A1 (CA)
Title: Fil d'acier ayant une structure de type bainite inferieure ecrouie; procede pour produire ce fil
Inventor: PRUDENCE BERNARD PIERRE
IPC: C21D9/52
Filed: 1990-12-18
Abstract: 2069511 9109933 PCTABS00105 Fil métallique présentant les caractéristiques suivantes: a) il est constitué au moins en partie par un acier ayant une teneur en carbone au moins égale à 0,1 % et au plus égale à 0,6 % et une teneur en bore inférieure à 8 ppm; b) l'acier du fil présente une structure (7) de type bainite inférieure écrouie; c) le diamètre du fil varie de 0,10 à 0,40 mm; d) la résistance à la rupture du fil est au moins égale à 2800 MPa; e) l'allongement à la rupture du fil est au moins égal à 0,4 %. Le procédé conforme à l'invention pour produire ce fil consiste à écrouir un fil machine comportant de 28 % à 90 % de ferrite proeutectoïde et de 72 % à 10 % de perlite, puis à effectuer un traitement thermique pour obtenir une structure de type bainite inférieure, puis à effectuer un écrouissage sur le fil, la température du fil lors de cet écrouissage étant inférieure à 0,3 TF, TF étant la température de fusion de l'acier exprimée en Kelvin.