baber/WOPTO huggingface dataset:
Patent CA-2129696-C (CA)
Title: Alkylation resins from polycyclic aromatic compounds
Inventor: BISWAS ATANU
IPC: C08G61/02
Filed: 1994-08-08
Granted: 1999-08-31
Abstract: The alkylation resins of this invention comprise the alkylation reaction product of (a) at least one substituted or unsubstituted polycyclic aromatic compound and (b) at least one ethylenically unsaturated hydrocarbon monomer having at least two carbon-carbon double bonds that reacts with the polycyclic aromatic compound by alkylation in the presence of an acid catalyst, wherein the ratio of (a) to (b) in the resin is 1:9 to 3:1 by weight. The resins have a weight average molecular weight of less than 10,000 measured by size exclusion chromatography, and a Ring & Ball softening point of 50° to 250°C. Because of their high softening point and low molecular weight, the resins are useful in a variety of applications such as flow rate modifiers for engineering polymers, tackifiers for adhesives, and flushing agents for inks.
Patent CA-2132892-C (CA)
Title: Catheter introducer assembly with needle shielding device
Inventor: STEINMAN CHRISTOPHER P
IPC: A61M25/06
Filed: 1994-09-26
Granted: 1999-02-23
Abstract: A winged catheter introducer is disclosed. The catheter introducer has a catheter, a tube attached to the catheter and a winged intermediate member between the catheter and the tube. Within the catheter and the tube is a needle with a stylet attached to it. The stylet is attached to a hub which facilitates the pulling of the needle out of the catheter and through the tube. Attached to the tube is an adapter with a septum attached to it. The needle is provided with an opening extending from the needle wall to the needle lumen. A shielding device is provided which is attached to the adapter. The shielding device includes a needle container which is designed to trap the needle. A needle shield is provided inside the needle container. The needle is provided with an area of enlarged diameter. This area of enlarged diameter interacts with the needle shield when the needle is withdrawn from the catheter and tube and into the needle container. The needle shield is provided with an orifice through which the needle and stylet can fit but through which the area of enlarged diameter cannot pass. When the needle is withdrawn from the catheter and tube and into the needle container, it is trapped by the needle shield. The needle shield is also provided with a transverse wall which snaps over the point of theneedle.
Patent CA-2136139-C (CA)
Inventor: FRIEDMAN JACOB
IPC: B23B27/04
Filed: 1994-11-18
Granted: 2005-05-10
Abstract: A metal cutting tool assembly comprising a rigid holder blade, an insert receiving slot formed in a leading end of the holder blade and defined between a resiliently displaceable clamping jaw formed integrally with the holder blade and rigid base jaw forming part of the holder blade, spaced apart displacement and supporting surfaces respectively formed in or on the clamping jaw and the holder, and a slot opening key, a pair of spaced apart projecting prongs of the key adapted to engage the surfaces. At least one of the prongs is displaceable with respect to the holder blade so as resiliently to displace the clamping jaw outwardly with respect to the base jaw into an opening position for insertion or removal of an insert.
Patent CA-2136147-C (CA)
Inventor: DULIN BRUCE E
IPC: C23C4/06
Filed: 1994-11-18
Granted: 2003-05-13
Abstract: A thermal spray powder is formed as a mixture of tungsten carbide granules and chromium carbide granules. The tungsten carbide granules each consists essentially of tungsten carbide bonded with cobalt, and the chromium carbide granules each consists essentially of chromium carbide bonded with nickel-chromium alloy. The powder may be asmixed with self-fluxing alloy powder.      The powder preferably is sprayed with a high velocity oxygen-fuel thermal spray gun.
Patent CA-2137615-C (CA)
Inventor: MARTIN ADOLF H
IPC: H01H9/02
Filed: 1994-12-08
Granted: 2004-03-23
Abstract: A mounting support for electrical switches and associated legend plates. With the use of the mounting support, legend plates of electrical switches can be assembled more quickly and less expensively and for this purpose a housing cover of an electric switch includes, on one side, a lateral projecting arm that abuts the rear face of an indicator board, with the projecting arm preferably including a pedestal which extends into an opening of the indicator board, and the legend plate overlaying a pedestal and being laterally guided within an opening in the indicator board, wherein the legend plate is bolted to the projecting arm by means of a threaded bolt attached to the projecting arm.
Patent CA-2139255-C (CA)
Inventor: KINCHIN ANTHONY E
IPC: F42B14/06
Filed: 1994-12-29
Granted: 2004-09-07
Abstract: A projectile having a cylindrical slug with a forward end portion and a rear end portion having substantially the same outer diameter. A sabot surrounds the slug and is nonrotatably connected to the slug so that the rotary motion which is imparted to the sabot by contact between the external surface of the sabot and rifling in a gun barrel is transferred directly to the slug by the nonrotatable connection between the sabot and the slug.
Patent CA-2141009-C (CA)
Title: Method of prioritizing handoff procedures in a cellular system
Inventor: AGRAWAL PRATHIMA
IPC: H04B7/26
Filed: 1995-01-24
Granted: 2001-03-20
Abstract: A method of prioritizing handoff requests in a cellular system is disclosed in which at least one handoff request for assignment of a communication channel is received from at least one mobile unit. A cutoff time for the handoff request is determined. The handoff requests are arranged in a priority queue based on the cutoff time associated with each handoff request. Available communication channels are assigned to the mobile units requesting handoff in the order of the queue.
Patent CA-2150760-C (CA)
Inventor: MARLINGA TERRANCE C
IPC: F01N13/08
Filed: 1995-06-01
Granted: 1999-03-30
Abstract: A  composite  tube  and method  of  manufacture  are provided. The composite tube is formed from a plurality of tube segments which are different from one another.  The tube segments may  differ  in  cross-sectional  dimensions  and/or material of manufacture.  The tube segments are welded in end-to-end relationship to define a composite tube.  The composite tube  is  then  bent  into  a  selected  non-linear  shape.          Preferably, the welds are disposed at locations on tangents between adjacent bends.  Bending forces and bending speed are altered from one bend to the next in view of anticipated strength and metallurgical characteristics of the particular tube segment in which the bend is being carried out.
Patent CA-2153101-C (CA)
Title: Snowmobile transmission jackshaft
Inventor: RIOUX ROGER
IPC: B62M27/02
Filed: 1995-06-30
Granted: 2004-04-20
Abstract: In a snowmobile drive train the variable ratio belt drive is not directly coupled to the engine crankshaft as in the prior art, but rather the driving pulley of the variable ratio belt drive is carried on one end of a jackshaft and the engine power is applied to the opposite end of the jackshaft. The jackshaft is supported in a fixed bearing in the vehicle frame, this bearing being immediately adjacent to the driving pulley so that the influence on the belt drive of vibrations generated by the engine is vastly diminished. Therefore the engine mounts can be arranged to fully absorb vibrations of the engine.      Previously, when the driving pulley was directly coupled to the engine crankshaft it was necessary to include a tie restraint to limit movements of the engine housing in the direction of separation between the axes of the driving and driven pulleys.
Patent CA-2155270-C (CA)
Title: Electron-emitting device, electron source and image-forming apparatus as well as method of manufacturing the same
Inventor: KISHI FUMIO
IPC: H01J9/02
Filed: 1995-08-02
Granted: 2001-05-29
Abstract: An electron-emitting device comprises a pair of electrodes and an electroconductive film arranged between the electrodes and including an electron-emitting region carrying a graphite film.  The graphite film shows, in a Raman spectroscopic analysis using a laser light source with a wavelength of 514.5 nm and a spot diameter of 1 µm, peaks of scattered light, of which 1) a peak (P2) located in the vicinity of 1,580 cm-1 is greater than a peak (P1) located in the vicinity of 1,335 cm-1 or 2) the half-width of a peak (P1) located in the vicinity of 1,335 cm-1 is not greater than 150 cm-1.
Patent CA-2156646-C (CA)
Inventor: HOLLOWAY THOMAS F
IPC: A45D40/06
Filed: 1995-08-22
Granted: 2003-11-11
Abstract: A cosmetic preparation dispenser permits filling of a dispenser cartridge and retraction thereof, but is subsequently inoperable until assembly with a master case.  The cartridge includes a cam sleeve, innerbody and elevator cup.  The locking of the cartridge is obtained by lower leftwardly extending track segments at the lower end of innerbody longitudinal track segments, which trap and retain the elevator cup when it is retracted after the cartridge is filled with a cosmetic stick.  When the cartridge is assembled with the master base, a stem in the master base pushes against the elevator cup to urge it out of it locked position to permit the elevator cup to be freely movable along the axial path.
Patent CA-2164912-C (CA)
Inventor: FAUCONET MICHEL
IPC: C07C57/04
Filed: 1995-12-11
Granted: 2000-02-15
Abstract: Recovery of noble light prods. (I) (i.e. acrylic acid monomer, acrylic ester monomer and 1-8C alcohol contained in distillation residues obtd. during the manufacture of acrylic acid or 1-8C acrylic acid ester (II), by thermal cracking of the residues. The process is characterised in that: (a) cracking is carried out, in the absence of a catalyst, on heavy distillation residues from the manufacture of acrylic acid on the one hand and on heavy distillation residues from the manufacture of acrylic acid ester on the other hand, (b) the light fraction from the dissociation reactions is continually vaporised during cracking, and (c) the light fraction is distilled so as to recover (I) after condensation.
Patent CA-2165296-C (CA)
Title: Disposable absorbent article having an inflatable spacer
Inventor: LAVON GARY DEAN
IPC: A61F13/49
Filed: 1994-05-26
Granted: 2000-02-22
Abstract: A disposable diaper having an inflatable component is disclosed. The inflatable component comprises an inflatable spacer, a gas evolving material, and a port for receiving an activating material. The port can comprise a gas impermeable, liquid permeable membrane, an adhesive closure, or a mechanical closure. The inflatablespacer maintains a fecal void space intermediate the top sheet and the back sheet of the diaper.
Patent CA-2168126-C (CA)
Title: Methode de chargement d'un materiau filtrant a electrets
Inventor: ANGADJIVAND SEYED A
IPC: D04H1/46
Filed: 1994-08-17
Granted: 2005-07-12
Abstract: L'invention concerne un procédé de charge d'une bande non tissée de microfibres thermoplastiques, afin de constituer un filtre à électret. Le procédé consiste à orienter sur une bande non tissée de microfibres thermoplastiques non conductrices, pouvant posséder une quantité élevée de charge piégée, des jets d'eau ou un courant de gouttelettes d'eau à une pression suffisante pour conférer à ladite bande une charge d'électret amplifiant la capacité de filtration, ainsi qu'à sécher ladite bande.
Patent CA-2171217-C (CA)
Title: Accessoire de coupe pour fraise
Inventor: DEROCHE KENNETH G
IPC: B23C5/20
Filed: 1994-08-30
Granted: 1999-03-16
Abstract: L'invention concerne une pièce de coupe rapportée (10), destinée à une fraise, qui comporte un corps principal (12) doté d'une face supérieure (20) et d'au moins une zone (30) angulaire saillante et surélevée disposée sur cette face (20). Un bord de coupe (32) entoure cette zone (30) angulaire saillante et surélevée et s'étire le long d'une face (24) latérale adjacente de cette pièce de coupe rapportée. La zone (30) angualire saillante et surélevée présente un chanfrein (50) incliné qui recoupe le bord de coupe (32) et une surface plane (52) disposée en retrait de ce chamfrein (50) incliné. Chaque listel de lèvre de coupe (54, 56) effilé part de la surface plane (52) vers une face (24) latérale respective de la pièce de coupe rapportée (10) où il recoupe le bord de coupe (32).
Patent CA-2171314-C (CA)
Inventor: ELLENBY JOHN
IPC: G06T15/10
Filed: 1994-06-16
Granted: 2001-06-12
Abstract: The present invention is generally con-cerned with electronic vision devices (1) and methods, and is specifically concerned with image augmentation in combination with nav-igation, position, and attitude devices. In the simplest form, devices (1) of the invention include six major components: a camera, a computer processor, devices to measure the position and attitude of the camera, a data base for storing information associated with various scenes, and a display (1) where an im-age (3) is continuously aligned to a real scene as viewed by a user (2). In the present inven-tion, an image of some real scene is altered by a computer processor to include stored infor-mation of a scene in a storage location iden-tified by real time position and attitude of the vision system (1). The primary function of the invention is to present augmented real images (3), or images that represent a real scene but have deletions, additions, and supplements, and data that is continuously aligned with the real scene as naturally viewed by the user (2) of the system.
Patent CA-2171389-C (CA)
Inventor: YAMADA TAKAO
IPC: A23L7/10
Filed: 1996-03-08
Granted: 1998-12-08
Abstract: The present invention relates to a powdered buckwheat starch syrup prepared by liquefying starch from buckwheat flour and spray-drying the liquefied starch, as well as a method for preparing the same.  The powdered buckwheat starch syrup of the present invention contains various amino acids and minerals, as well as rutin which is effective in preventing arteriosclerosis, and hence it is healthy and excellent in nutritive balance.
Patent CA-2174151-C (CA)
Inventor: CASPERS CARL A
IPC: A61F2/78
Filed: 1993-06-22
Granted: 2000-01-04
Abstract: A visco-elastic polymer liner for use in donning over a residual limb and fitting within the socket of an artificial limb.  The liner is shaped to have its cavity formed with a volume and shape less than a volume and shape of the residual limb for both tension and tissue configuration relief while the liner has an outer surface formed with a volume and shape greater than the volume and shape of the artificial limb socket for relief of certain tissue configurations and to create weight bearing, relief and compression areas on and in the liner to absorb and dissipate shock, shear and mechanical forces through the liner otherwise transmitted to the residual limb.  The liner may have imbedded on its inner cavity side electrodes adjacent muscles that are sensitive to the muscle action potentials to generate signals to a power source to move an articulable artificial limb.  The liner may take the shape of a tube to be donned over a paralyzed limb similarly having electrodes imbedded in its inner cavity side adjacent neuromuscular junctions which are connected to a muscle action potential generator to activate flexion and extension of the paralyzed limb.  A method for making the liner is also claimed which comprises the making of a positive model of the residual limb, reducing the model, forming the liner about the reduced model and laminating a hard socket over a reduced model of the liner.
Patent CA-2174378-C (CA)
Title: Tire bead breaking tool
Inventor: BRUNNER LARRY F
IPC: B60C25/132
Filed: 1996-04-17
Granted: 2005-07-26
Abstract: The present invention is for a bead breaking tool which can be used in combination with various tire stripping stands and benches to break a tire bead before a tire is stripped from. its rim. The tool has sidewall engaging legs which depress the sidewall of the tire, opening pockets between the rim and the tire into which rim engaging jaws can be inserted. Providing the pockets reduces the likelihood of damage to the tire or rim during bead breaking. The tool is effective in removing rims which have a safety rib such as is employed for many of the rims which are intended for use with low pressure tires such as the tires for All Terrain Vehicles.
Patent CA-2181290-C (CA)
Inventor: VATSAAS RICK
IPC: F16D25/0635
Filed: 1996-07-16
Granted: 2002-01-08
Abstract: Rotational control apparatus (A) in the preferred forms of fan clutches is disclosed including shoulder bolts (78) extending through axially extending voids (146) formed in axially extending portion (66) and flange (76) of first and second shell housings (62, 68).  The shoulder bolts (78) secure the shell housings (62, 68) together to prevent relative movement therebetween.  The apparatus (A) further includes a piston (80) having tabs (144) extending from the outer periphery thereof into the voids (146) and including openings having bushings (134) therein for slideable receipt on the shoulder bolts (78).  Springs (138) are mounted on standoffs (210) extending in the voids (146) and abutting with the shoulder of the shoulder bolts (78).  A first  O-ring (94, 234) is received on an axially extending, outer cylindrical surface of a first shoulder (92, 232) such that fluid pressure received in a cylinder (C) pushes the first O-ring (94, 234) against the annular, radially extending surface of the first shoulder (92, 232).  In a preferred form, a second O-ring (238) is received on an axially extending outer cylindrical surface of a second shoulder (236).  A step (240) includes an annular, radially extending surface for pushing the second O-ring (238) towards the annular, radially extending surface of the second shoulder (236) in the absence of fluid pressure in the cylinder (C).
Patent CA-2182160-C (CA)
Inventor: BREITBACH ELMAR
IPC: F16F15/00
Filed: 1996-07-26
Granted: 2000-04-25
Abstract: An interface (3) for vibration reduction in structural-dynamic systems comprises a base-side construction element (8) and a structure-side construction element (9) and at least one actuator (14), for example a piezoelectric or a magnetostrictive actuator. The actuator (14) has a main direction (17), and the extension of the actuator (14) in its main direction (17) between a first engagement point (15) on the base-side construction element (8) and a second engagement point (16) on the structure-side construction element (9) can be voluntarily changed by means of a drive signal. Therein, the actuator (14) is under pressure prestress between the first engagement point (15) and the second engagement point (16), and at least one elastic element (18) is arranged in parallel to the actuator (14) between the base-side construction element (8) and the structure-side construction element (9), the elastic element (18) having a longitudinal stiffness parallel to the main direction (17) of the actuator (14) which is as low as possible, and a transversal stiffness perpendicular to the main direction (17) of the actuator (14) which is as high as possible.
Patent CA-2182516-C (CA)
Title: Probes labelled with energy transfer coupled dyes
Inventor: MATHIES RICHARD A
IPC: C12Q1/68
Filed: 1995-01-30
Granted: 2003-11-25
Abstract: Compositions are provided comprising sets of fluorescent labels carrying pai rs of donor and acceptor dye molecules, designed for efficient excitation of the donors at a single wavelength and emission from the acceptor in each of the pairs at different wavelengt hs. The different molecules having different donor-acceptor pairs can be modifie d to have substantially the same mobility under separati on conditions, by varying the distance between the donor and acceptor in a give n pair. Particularly, the fluorescent compositions find use as labels in sequencing nucleic acids.
Patent CA-2184247-C (CA)
Title: Picture information encoding/decoding system
Inventor: KIKUCHI SHINICHI
IPC: H04N7/32
Filed: 1995-12-27
Granted: 1999-12-14
Abstract: A bit train of a plurality of continuous pixels is compressed according to a new run-length compression scheme.  In this run-length compression scheme, the run information of one unit of compression includes run-length information indicating the continuous number of the same pixel data blocks, or the number of pixels followed, and pixel data having a two-bit configuration for discriminating three or more colors of the pixels.
Patent CA-2186566-C (CA)
Inventor: BURDUROGLU MEHMET
IPC: B29K33/00
Filed: 1996-09-26
Granted: 2007-01-02
Abstract: Improved homogeneity and uniformity of surface energy characteristics in a mold surface for hydrophilic contact lens production is achieved with the temporal application of a surface active agent such as Tween 80, to facilitate wetting of the optical surface of the mold, especially the convex mold, with the reactive monomer mix.
Patent CA-2191663-C (CA)
Title: Pre-stretched film, and apparatus and a method for outer packaging
Inventor: MARTIN-COCHER JEAN-PAUL
IPC: B65B21/14
Filed: 1996-11-29
Granted: 2001-08-21
Abstract: The present invention relates to a pre-stretched film, and to apparatus and a method of applying outer packaging to packages and to loads, optimized as a function of the structure and in particular the shape of the package or the load, in particular a palletized load, and also as a function of the-transport and handling that the package or the load must be capable of withstanding without the outer packaging being dislocated.  According to the invention, a stretchable film is stretched over at least one roller of diameter that varies along its axis of rotation so as to form parallel longitudinal zones in the film that have different degrees of stretching. These zones make it possible, in particular, to track the external outlines of objects to be packaged and/or to provide locally-reinforced bonding, or on the contrary to present surfaces that are more relaxed.  The present invention applies in particular to packaging and grouping together loads that may optionally be palletized.  The main application of the present invention lies in grouping together bottles of beverages.
Patent CA-2192455-C (CA)
Inventor: TSENG-LAW JANET
IPC: C07K14/705
Filed: 1995-06-13
Granted: 2007-11-20
Abstract: The invention provides a non-enzymatic method for the release of cells which have beem positively selected from a heterogeneous cell suspension by antibody-mediated binding to beads or other solid support . The method entails forming within the cell suspension a complex comprising the solid support linked to a primary monoclonal antibody , which in tum is bound to a cell surface antigen on the target cells. The complex is separated from the cell suspension, and then contacted with a specific peptide which binds to the primary antibody, displacing the antibody from the cell surface antigen, thereby releasing the target cell from the complex. The invention also provides methods for positive/negative cell selection wherein target cells having a first antigen are selected from a heterogeneous cell suspension containing undesired cells having a second antigen. The invention also provides methods for identifying a specific peptide useful for the release of a target cell from the binding of a specific monoclonal antibody. The methods of the invention are particularly useful for the positive selection of CD34+ hematopoietic stem cells and the concomitant purging of undesired tumor cells or lymphocytes from the positively selected cell population. The purified CD34+ cell composition is then usefulfor reinfusion to a cancer patient after high-dose therapy in order to reconstitute the patient's immune system.