baber/WOPTO huggingface dataset:
Patent CA-2251737-A1 (CA)
Title: Silicon carbide cmos and method of fabrication
Inventor: SLATER DAVID B JR
IPC: H01L21/82
Filed: 1997-04-14
Abstract: A monolithic CMOS integrated device formed in silicon carbide and method of fabricating same. The CMOS integrated device includes a layer of silicon carbide of a first conductivity type with a well region of a second conductivity type formed in the layer of silicon carbide. A MOS field effect transistor is formed in the well region and a complementary MOS field effect transistor is formed in the silicon carbide layer. The method of fabrication of CMOS silicon carbide includes formation of an opposite conductivity well region in a silicon carbide layer by ion implantation. Source and drain contacts are also formed by selective ion implantation in the silicon carbide layer and the well region. A gate dielectric layer is formed by deposition and re-oxidation. A gate electrode is formed on the gate dielectric such that a channel region is formed between the source and the drain when a bias is applied to the gate electrode. Source drain and body contacts are preferably formed of the same material in a single fabrication step.
Patent CA-2251772-A1 (CA)
Title: Concrete slat molding machine with a mechanism to agitate the metal bars and with leakage protection
Inventor: DUPUIS BRUNO
IPC: B28B1/10
Filed: 1998-11-13
Abstract: A machine for molding concrete slats, a process for molding same and a concrete slat manufactured therefrom. The machine includes an agitating means consisting essentially of a reinforced rod network connected to a shaft which in turn is connected to an oscillating means. The machine also includes a shock absorbing means which may be made of rubber. The concrete slat obtain from said machine is one having a rectangular shape and a plurality of openings. The openings contain dull edges.
Patent CA-2253005-A1 (CA)
Inventor: RENE YVES
IPC: F16L33/30
Filed: 1998-11-13
Abstract: Une union-crochet réductrice de tension servant à éliminer la tension entre la conduite secondaire et le raccordement qui est relié à la conduite principale qui laisse passer la sève pour les opérations acéricoles. L'union-crochet est installée à l'endroit désiré en coupant et en y insérant l'union-crochet à cet endroit sur le tuyau secondaire pour les unir de nouveau, puis on accroche cette union-crochet à la broche qui longe le tuyau principal, de façon à enlever toute tension sur le raccordement.
Patent CA-2255264-A1 (CA)
Inventor: DAVIDSON GILBERT L
IPC: E21B49/08
Filed: 1998-12-14
Abstract: A system for communicating with underground fluids at different depths or along different lengths (i.e. in a horizontal fashion for SVE)  in a common well which includes a plurality of connectable intersleeved casing sections that have apertures which can be manipulated to be open or closed.   The intersleeved casing sections include  outer sleeve members and an inner sleeve member which is movable with respect to the outer sleeve member. Movement of the inner sleeve member causes apertures therein to align with corresponding apertures in the outer sleeve member.  The intersleeved casing sections are connected together by coupling members.  Manipulation and opening of a selected intersleeved casing section from a plurality of coupled intersleeved casing sections which form a multi-screen casing allow fluids to be sampled,  monitored,  tested,  remediated,  removed  or dispensed at a specific depth in a well.
Patent CA-2255605-A1 (CA)
Inventor: MATHESIUS CHRISTIAN
IPC: H01R13/658
Filed: 1997-04-28
Abstract: In a shielded pin-and-socket connector with an insulating body, which has the shape of a plastic tongue (1) with an essentially rectangular profile in the plug-in area, two pairs of adjacent and inwardly oriented latching hooks (7, 8; 9, 10) are located in the upper portion (4) and in the lower portion (5) of the shielding plate (2) which latch into the notches (11, 12) of a protective housing (13) of an inserted counterconnector (14). The upper side (3) of the plastic tongue (1) has two cavities (16) into which the two upper latch hooks (7, 8) drop into from above.
Patent CA-2256426-A1 (CA)
Title: Paraffin dispersants for crude oil middle distillates
Inventor: UZELAC LJILJANA
IPC: C09K23/52
Filed: 1997-05-28
Abstract: The invention concerns a mixture containing: (a) between 10 and 90 wt % of at least one imide comprising a copolymer based on an alpha-olefin and an ethylenically unsaturated dicarboxylic acid and a polyamine; and (b) between 10 and 90 wt % of at least one reaction product of a poly (C2-20) carboxylic acid, comprising at least one tertiary amino group, with secondary amines. The invention also concerns the use of this mixture as a paraffin dispersant for crude oil middle distillates.
Patent CA-2257767-A1 (CA)
Title: Boom mounted winch
Inventor: BOYER MARK L
IPC: B66D5/26
Filed: 1999-01-06
Abstract: A winch spooled with a cable is provided for mounting on the boom of a host vehicle. The winch is surrounded by a frame housing that is capable of withstanding the forces applied by the host vehicle. A braking mechanism is provided for controlling the spooling and unspooling of the cable. The winch is mounted on the boom of a host vehicle by a conventional attachment that is used for other custom tools.
Patent CA-2257886-A1 (CA)
Inventor: WHITE SAMUEL P
IPC: H02J3/14
Filed: 1997-06-13
Abstract: A real-time pricing control method for use in controlling one or more points at one or more sites includes receiving real time utility rate data. At least one point component is defined for use in the method. The at least one point component includes one or more points. A control strategy is specified for each point component based on at least two utility rate ranges and a command for each point is generated as a function of the control strategy specified and the real time utility rate data. The points of the at least one point component include one of digital points, multistage digital points, and analog points. Further, one or more points may be monitored. A real-time pricing control system for performing the method is also provided. The system includes a utility rate interface which receives real time utility rate data from the utility service provider and deposits such utility rate data in a utility rates database. The interface also provides the utility rate data from the database to the real-time pricing controller for generating commands for controlling the one or more points as a function of real time utility rate data. The system further includes communications interface for communicating with an associated management system. A user interface for use with the methods and system is also provided along with a reporting system for generating reports for the user of the system and methods.
Patent CA-2259043-A1 (CA)
Title: Apparatus and method for non-destructive, low stress removal of soldered electronic components
Inventor: LORD RAYMOND
IPC: B23K1/018
Filed: 1999-01-18
Abstract: Circuit chips, such as known good die (KGD) chips, are removed from an assembly including a plurality of circuit chips attached to at least one chip carrier, or substrate. The substrate is held within a top plate with the circuit chips positioned within successive chip cavities within a bottom plate. Each chip cavity includes a load surface separated by a cascade effect pitch with respect to adjacent chip cavities. A cascade effect shear force is sequentially applied to the circuit chips to remove them from the substrate. The chips may be heated to a temperature facilitating shear within a temperature range at which solder connections are solid, and the chips further heated following disassembly to a temperature at which the solder is liquid to facilitate reforming the solder for subsequent attachment of the chip into an electronic device.
Patent CA-2259044-A1 (CA)
Title: Flexural pivot bearing
Inventor: BUCKINGHAM MICHAEL JOSLIN
IPC: G01V7/02
Filed: 1989-12-20
Abstract: A flexural pivot bearing includes a pair of members with opposed closed-spaced faces, which faces are joined by a web of microscopic thickness in a plane intersecting the faces. The members in the web are comprised of an integral body of substantially uniform material and the members are adapted for pivoted mutual flexure about a pivot axis aligned along the web.
Patent CA-2262441-A1 (CA)
Title: Bone plate
Inventor: TEPIC SLOBODAN
IPC: A61B17/80
Filed: 1996-08-12
Abstract: A bone plate has a top side (1) a bottom side (2) for contacting the bone, two longitudinal sides (13), a plurality of holes (3) which extend from the top side (1) to the bottom side (2) and a longitudinal axis (10). The cross-section of the holes (3) tapers from the top side (1) to the bottom side (2) and the bottom side (2) is provided with recesses. The surface of the top side (1) adjacent to the holes forms island-like recesses (4) relative to the remaining surface of the top side (1). The bottom side (2) is provided with two different types of recesses (5; 6) which create a plurality of supporting points (12) for contacting the bone. In addition, the holes (3) conically taper from the top side (1) to the bottom side (2).
Patent CA-2263146-A1 (CA)
Title: Acquired resistance npr genes and uses thereof
Inventor: AUSUBEL FREDERICK M
IPC: C12N1/21
Filed: 1997-08-08
Abstract: Genomic and cDNA sequences encoding plant acquired resistance proteins are disclosed. Expression of these polypeptides in transgenic plants are useful for providing enhanced defense mechanisms to combat plant diseases.
Patent CA-2270339-A1 (CA)
Title: Enzymatic oxidation process
Inventor: VERRIPS CORNELIS THEODORUS
IPC: C11D3/37
Filed: 1997-11-21
Abstract: There is provided an enzymatic oxidation process wherein a substance which is to be oxidised is reacted with (a) an enzyme exhibiting peroxidase activity and a source of hydrogen peroxide or an enzymes exhibiting oxidase activity on phenolic compounds and (b) a compound which enhances the oxidation activity of the enzyme, characterized in that the compound specifically binds the substance which is to be oxidized. Furthermore, there is provided an enzymatic stain bleaching or anti dye-transfer composition comprising: a) an enzyme exhibiting peroxidase activity and a source of hydrogen peroxide or an enzyme exhibiting oxidase activity on phenolic compounds and (b) a compound which enhances the oxidation activity of the enzyme and which is capable of binding selectively to a stain chromophore or textile dye in solution.
Patent CA-2270528-A1 (CA)
Title: Single dose dental adhesive delivery system and method and adhesive therefor
Inventor: NG DANIEL
IPC: A61C5/06
Filed: 1997-11-14
Abstract: A dental adhesive delivery system (10) provides a capsule (11) containing a single usage amount of dental adhesive (15) in a non-resealable container (14) for use in treating a single patient. The packaged amount of adhesive (15) may include up to the amount required to treat all of the teeth needing treatment of not more than a single patient, for example in the range of approximately 0.005 to 1.0 ml. The single use container (14) is preferably formed of injected molded plastic cup (20) and includes a reservoir section (30) having a cavity (22) therein that contains the adhesive (15) and a break off section (31) that surrounds an opening (24) that receives a snap fit cap (21). The cap (21) and break off section are discarded and the adhesive (15) is removed with the tip (55) of a wand (12) for application to the teeth of a patient, whereupon the container, which is not resealable, is discarded. A vapor seal secondary containment such as a pouch (13) of foil, plastic or polyfoil material, for example, limits the escape and prevents unacceptable loss of organic carrier or solvent from the adhesive.
Patent CA-2273557-A1 (CA)
Title: Method and apparatus for producing welding power
Inventor: ZHANG LIN
IPC: B23K9/10
Filed: 1999-05-28
Abstract: A method or apparatus for sub arc/tubular wire arc welding includes providing a first wire to a first welding arc and a first ac power signal to the first welding arc.      The first ac power signal is a substantially constant voltage signal. A second wire may be provided to a second welding arc near the first welding arc, and a second ac power signal is then provided to the second arc. A phase relationship between the first and second ac power signals is selected from a plurality of at least three possible phase relationships. Preferably the frequency and/or balance of at least one of the signals is selectable. Also, the output frequency is preferably controllable such that it can be more or less than the input frequency.
Patent CA-2276736-A1 (CA)
Title: Microplate assembly and closures
Inventor: GAMBLE KIMBERLY R
IPC: B01L3/00
Filed: 1999-06-29
Abstract: A microplate assembly with closure comprises a microplate base 101 having a geometric array of wells 103. Vials 113 of borosilicate glass inserted into the wells comprise flanges on the top portion of the vials. Closure 117 comprises an array of caps 119 having a complementary geometric pattern to the wells of the microplate base. The caps each comprise a septum and are connected by a thin membrane 121. Each cap comprises a sidewall 403 having a vial engagement ring which snaps over the flange 115 of the vials. Septum openings 135 in the caps extend through the top of the caps and provide a means to fill and evacuate the vials with a penetration device passing through the septa of the caps of the closure.
Patent CA-2277605-A1 (CA)
Inventor: HEATON THOMAS K
IPC: G09F13/04
Filed: 1999-07-16
Abstract: In an exit sign, a cover member for an emergency exit sign has a pair of hook members on its bottom wall and a pair of resilient spring finger members on its top wall. The hook members are dimensionally sized and appropriately positioned to engage catch members on an exit sign housing while the spring finger members resiliently snap fit within spaced apart apertures in the top wall of the exit sign housing thereby retaining the cover member in its closed position. A pair of flexible straps secure the cover member to the exit sign housing to keep them in assembly when the cover member is in its open position.
Patent CA-2279012-A1 (CA)
Title: Water soluble fluxes and methods of using the same
Inventor: PARHAR AMRIT K
IPC: B23K35/363
Filed: 1999-07-23
Abstract: The present invention relates to water soluble fluxes which comprise at least one wax carrier, at least one surfactant and at least one activator. The present water soluble fluxes are easily applicable with a brush. They have excellent pull through of solder in the joint. The water soluble flux avoids turning copper green and does not burst into flame on heating with a torch.
Patent CA-2279187-A1 (CA)
Inventor: CARSON WILLIAM C III
IPC: B65D83/10
Filed: 1998-02-18
Abstract: A cartridge-connecting subassembly for a shaving razor handle (12). The cartridge-connecting subassembly includes a cartridge connecting structure (26), a handle connecting structure (88), and a movable component (23, 86) within the cartridge connecting structure that interacts with a replaceable cartridge when it is connected. The cartridge connecting structure (26) releasably holds the replaceable cartridge (14). The cartridge connecting subassembly is substantially covered when the handle connecting structure (88) is connected to an elongated hand gripping structure (30) of said handle (12) and the cartridge connecting structure (26) is connected to a cartridge (14).
Patent CA-2279676-A1 (CA)
Title: Rotating apparatus for surface massage
Inventor: POLYCHRONIS GUS
IPC: A61H15/00
Filed: 1999-08-05
Abstract: A hand held manual massager is constructed as a cylindrical cage with a series of axles arranged in a circular or near circular array. Each of the axles provides a series of side-by-side massaging wheels. The wheels have a ridged circumference for rolling on the surface of the skin in a manner for stimulating the muscles and circulatory system.
Patent CA-2282255-A1 (CA)
Title: Improved method for producing crystalline carboxylic acids and apparatus therefor
Inventor: BRISTOW MARK ANTHONY
IPC: C07C51/43
Filed: 1998-04-08
Abstract: Improved process for producing purified aromatic carboxylic acid in the form of dried crystals which comprises cooling the crystals in a fluidized state after the drying step to a temperature at or below 100 ° C prior to packaging and an apparatus therefor.
Patent CA-2285310-A1 (CA)
Title: Systeme convoyeur a vis san fin multiples
Inventor: BRUKE RICHARD
IPC: B65G33/18
Filed: 1998-03-31
Abstract: L'invention concerne un convoyeur (2) vertical doté d'une double hélice (21, 31). Le convoyeur (2) vertical comprend une enveloppe (20) et deux hélice (21, 31) sans fin. Chaque hélice (21, 31) est entraînée par un moteur (24) via une unité d'engrenage et de portée (25). Les moteurs (24) sont placés sur la petite extrémité du convoyeur vertical (2). L'entrée (22) et la sortie (23) du convoyeur sont placées sur des côtés opposés de l'enveloppe (20). Les hélices (21, 31) sont entraînées dans des sens opposés de telle manière que la masse est "tirée" à l'entrée (22) et "exprimé" à la sortie (23). Pour ce faire, la masse est soumise à des composants de force, en l'occurrence, les deux hélices (21, 31) qui agissent dans le sens de l'entrée (22) et respectivement de la sortie (23). Dans un certain nombre de réalisations, une tige stationnaire (33) est placée dans les hélices (21, 31) au moins dans la zone de l'entrée (22). A l'opposé de l'entrée (22), l'enveloppe (20) a une forme en V (26) entre les hélices (21, 31). L'enveloppe (20) est normalement ouverte entre les deux hélices (21, 31). Le convoyeur vertical (31) est souvent alimenté par un convoyeur sensiblement horizontal (1).
Patent CA-2286414-A1 (CA)
Inventor: GAN ZHIBO
IPC: G01N33/542
Filed: 1999-10-04
Abstract: This present invention is for a method referred to as non-separation heterogenous assay that greatly simplifies the detection, identification, measurement of concentration and activity of biological substances. It is based on the change of the label signal due to the uneven distribution of the label between surface and liquid in a vessel after completion of the reaction among reactants. The method involves the coating of a reactant (labeled or unlabeled) onto a surface, addition of a sample with or without a competitor labeled using a label tag or unlabeled. The change of the label signal can be directly measured.
Patent CA-2288076-A1 (CA)
Inventor: VASSALLO PAUL
IPC: A47K3/40
Filed: 1999-02-26
Abstract: There is disclosed a precast shower base (20) manufactured from fiberglass reinforced plastics and designed for high traffic commercial, industrial and institutional use. The precast shower base (20) has relatively thicker sides (24, 25) and floor (21) and is provided with a groove (27) about the upper periphery (26) of its walls that can readily and easily support heavy shower wall partitions.
Patent CA-2288882-A1 (CA)
Inventor: LANDREE DALE R
IPC: F01C13/02
Filed: 1999-03-01
Abstract: On décrit un outil à main pneumatique à cliquet qui comprend une poignée allongée (16), généralement cylindrique. Cette poignée est munie, sur son axe, d'un passage (19) traversant pour l'écoulement de l'air, et présente une surface extérieure qui comporte deux canaux longitudinaux (31, 32) communiquant chacun avec le moteur à air comprimé (15). Une gaine antidérapante thermoplastique (40) habille la poignée (16) et coopère avec les canaux (31, 32) pour former entre ces derniers deux passages (50, 51) d'évacuation d'air sortant sur l'extrémité distale (52) de la poignée. La gaine est creusée de nervures longitudinales (46-48) qui présentent des protubérances radiales tournées vers l'intérieur et pénétrant dans des évidements longitudinaux (31, 32) ménagés dans la poignée pour empêcher un mouvement rotatif relatif. Un taquet disposé sur la poignée s'étend à travers un orifice de la gaine pour empêcher un mouvement axial relatif. Une enveloppe (38) de déclencheur souple et élastique recouvre le déclencheur de la soupape et l'orifice de la gaine à travers lequel il fait saillie.
Patent CA-2289936-A1 (CA)
Inventor: BURKE DOUG
IPC: G02B30/25
Filed: 1998-05-12
Abstract: Systems and method of displaying images of entire scenes in apparent three dimensions; whereby a means of projection (201) projects images with light onto a multi-layered composite transparent sheet polarizing screen (202), the dimensions of whose optically active layers are determined by the intensity and the mixture of polarization states of the projected light. The images (501, 502, 503, 504, 505) appear to be three dimensional.
Patent CA-2290579-A1 (CA)
Title: Asymmetric channel allocation for a mobile station in a cdma communication network
Inventor: KIM YOUNG KY
IPC: H04J13/00
Filed: 1998-06-26
Abstract: In a CDMA-based communication system, a system and method for allocating channel bandwidths and chip rates.      The system and method supports asymmetric bandwidths and chip rates for the forward and reverse channels. The system and method includes a negotiation process between a mobile station and a base station to select chip rates and bandwidths for use in the forward and reverse channels.
Patent CA-2292603-A1 (CA)
Inventor: MUENCH ERIK
IPC: G06F11/16
Filed: 1998-06-04
Abstract: Synchronized execution is maintained by compute elements (105) processing instruction streams in a computer system (100) including the compute elements and a controller. Each compute element includes a clock that operates asynchronously with respect to clocks of the other compute elements. Each compute element processes instructions from an instruction stream and counts the instructions processed. Upon processing a quantum of instructions from the instruction stream, the compute element initiates a synchronization procedure and continues to process instructions from the instruction stream and to count instructions processed from the instruction stream. The compute element halts processing of instructions from the instruction stream after processing an unspecified number of instructions from the instruction stream in addition to the quantum of instructions. Upon halting processing, the compute element sends a synchronization request to the controller and waits for a synchronization reply.
Patent CA-2293464-A1 (CA)
Title: Disassemblable hay rake
Inventor: MENICHETTI SILVANO
IPC: A01D78/00
Filed: 1999-06-08
Abstract: A towable hay rake is capable of being completely disassembled into parts having relatively homogenous dimensions, thus allowing the hay rake to be easily stored and shipped. In particular the hay rake of the present invention has the advantage that the entire rake can be packed into one rectangular crate of minimum encumbrance. This allows maximum possible practicality and efficiency in shipping and storage of the rake.
Patent CA-2294175-A1 (CA)
Title: Method for producing quinazoline-diones in solid phase and use of the same
Inventor: KLING ANDREAS
IPC: G01N33/15
Filed: 1998-05-29
Abstract: The invention relates to a method for producing quinazoline-dione derivatives and the use of said derivatives.
Patent CA-2295908-A1 (CA)
Inventor: SHAH PURVI
IPC: C07K14/475
Filed: 1998-06-30
Abstract: The invention provides a new human growth regulator protein (GRREG) and polynucleotides which identify and encode GRREG. The invention also provides expression vectors, host cells, agonists, antibodies and antagonists. The invention also provides methods for treating disorders associated with expression of GRREG.