baber/WOPTO huggingface dataset:
Patent CA-2149024-C (CA)
Title: Wave-soldering using a shroud for a gas
Inventor: GILETA JOHN HARRY
IPC: B23K3/06
Filed: 1993-11-24
Granted: 1997-02-04
Abstract: A cover plate (28) extends over at least part of a solder reservoir (34) and has a slot (30) for a solder wave (22) to extend up above the cover plate (28). Shield gas is supplied under the cover plate (28) to blanket the solder wave (22) and prevent air from contacting the solder wave (22) and circuit boards (44) passing through the solder wave (22). Circuit boards (44) are generally supported by conveyor fingers (41, 42) at side edges and the fingers (41, 42) pass through the solder wave (22). End shrouds (50, 64) are provided at both ends of the solder wave (22) to prevent the entry of air through the conveyor fingers (41, 42) and to ensure that the side edges of the circuit board (44) are uniformly blanketed by shield gas directed to the side edges passing up through the slot (30) in the cover plate (28). The under surface, front edge back edge and side edges of a circuit board (44) are therefore uniformly blanketed by shield gas as the board passes through a solder wave (22).
Patent CA-2149313-C (CA)
Title: Disposable plastic liquid pump
Inventor: OPHARDT HEINER
IPC: F04B53/12
Filed: 1993-11-19
Granted: 2002-07-23
Abstract: A disposable plastic pump for dispensing liquids is disclosed which comprises two basic unitary, preferably all plastic, elements: a chamber forming body having an open outer end and an inner end in fluid communication with a liquid reservoir, and a piston formed to slidably fit into the chamber. The chamber forms two axially adjacent coaxial chambers, an inner chamber of one diameter and an outer chamber of a greater diameter. The piston comprises a stem on which is located two spaced flexing discs each sized to fit in and serving as a one-way valve in the inner chamber and outer chamber, respectively, permitting fluids to flow outwardly past each flexing disc. A sealing disc is located on the stem outwardly of the outermost flexing disc. A passageway is provided from an inlet on the piston between the outermost flexing disc and the sealing disc through which the dispensed liquid flow.
Patent CA-2150036-C (CA)
Inventor: KOKUBO TADASHI
IPC: A61F2/00
Filed: 1994-11-07
Granted: 2001-07-10
Abstract: Matériau de substitution osseuse comprenant un matériau de base contenant du titane ou son alliage, et sur la surface de ce matériau, un revêtement contenant une phase d'oxyde de titane et une phase de titanate alcalin non cristallin, et procédé de production dudit matériau consistant à immerger un matériau de base contenant du titane ou son alliage dans une solution alcaline et à chauffer le matériau à une température inférieure au point de transition du titane ou de son alliage. Le matériau de la présente invention comprend du titane et de l'apatite fermement collés l'un à l'autre, possède à la fois la résistance à la fracture du titane et la bioactivité de l'apatite, et peut être produit à faible coût.
Patent CA-2155490-C (CA)
Inventor: BALAITY ANDREW
IPC: B21D5/02
Filed: 1995-08-04
Granted: 2000-04-18
Abstract: A device for bending a plate with an offset distance L and two angles simultaneously is provided, the device comprising special jaws which are replaceably attachable to the jaws of a pliers. A kit of a plurality of sets of bending jaws having a variety of offset lengths is provided.
Patent CA-2156930-C (CA)
Inventor: CIOCA GHEORGHE
IPC: A61Q17/04
Filed: 1994-02-24
Granted: 2005-11-08
Abstract: Improved sunscreen compositions and their methods of manufacture are provided.  The sunscreen compositions include extracts of cereal plants and an optional sunscreen blocking agent. The compositions optionally also may include dihydroxycinnamic derivatives.
Patent CA-2158936-C (CA)
Inventor: BARBER JACK R
IPC: A61K38/00
Filed: 1994-11-18
Granted: 2012-02-21
Abstract: The present invention provides recombinant viral vectors carrying a vector construct which directs the expression of a gene product (e.g., HSVTK) that activates a compound with little or no cytotoxicity into a toxic product. Also provided are methods of destroying or inhibiting pathogenic agents in a warm blooded animal, comprising the step of administering to the animal a viral vector such as that described above, in order to inhibit or destroy the pathogenic agent.
Patent CA-2164983-C (CA)
Title: Drip irrigation hose and method of manufacture
Inventor: DEFRANK MICHAEL P
IPC: B05B1/20
Filed: 1994-05-09
Granted: 2002-02-12
Abstract: A drip irrigation hose in which the outlets from the regulating passage each  comprise a single longitudinal slit (46 47). The slits are sufficiently long and the film is sufficiently flexible so the water drips from the outlets when the hose is pressurized. The slits are sufficiently short and the film is sufficiently rigid so the outlets close completely whe n the hose is depressurized, inhibiting clogging. An apparatus for making the hose includes an outlet forming wheel (20) having a knife bla de (30) on its periphery, a backing wheel (26) engaging the outlet forming wheel to establish a first nip (28) therebetween and having a  circumferential slot (32) into which the knife blade fits at the first nip, and a rib forming wheel (22) having impressions around its periphery that define a desired track pattern for the ribs. The outlet forming wheel and the rib forming wheel are mounted on a common shaft to operate in synchronism.
Patent CA-2177650-C (CA)
Title: Method for optimized utilization of base material in the manufacture of optoelectronic components with variable-period gratings
Inventor: HILLMER HARTMUT
IPC: H01S5/12
Filed: 1996-05-29
Granted: 2007-03-13
Abstract: ] Disclosed is a method for the optimum utilization of disk-shaped base material in the manufacture of optoelectronic components with variable-period grating. The method helps avoid material losses by arranging optoelectronic components on a disk-shaped base material in an optimum manner and is based on obtaining variants of nominally identical individual component patterns by mathematical rotation and mirroring, forming a unit cell through shifting of the individual component pattern variants, and reproducing the unit cell in the x and y directions until the active surface of the mask or the entire surface of the disk-shaped base material is tightly covered. The method may be used for the manufacture of photonic components based on DFB, DBR, or sampled grating structures.
Patent CA-2177774-C (CA)
Title: Novel piperazine, piperidine and 1,2,5,6-tetrahydropyridine compounds; process_for preparing the same and pharmaceutical compositions containing them
Inventor: DESSINGES AIMEE
IPC: C07D319/18
Filed: 1996-05-30
Granted: 2001-07-24
Abstract: Piperazine, piperidine, and tetrahydropyridine derivatives of formula (I), in racemic or optically isomeric or enantiomeric forms, and their salts, are new. A-B = CH2-CH, CH=C, or CH2-N; n = 0 or 1-6; D = a bicyclic system of any of the formulae e.g. (1)-(5); R1, R2 = H, halo, 1-5C alkyl or alkoxy, or OH; E = one of the heterocycles e.g. (a)-(e); with the proviso that E is not (d) when D is (2), (3) or (4), all joined by the 1-position.
Patent CA-2178472-C (CA)
Inventor: BRADSHAW JAMES I
IPC: A61N1/375
Filed: 1994-12-16
Granted: 2000-10-17
Abstract: A connector terminal (22) in a cardiac stimulator for receiving connector pin of an associated lead includes a hollow box member (32) having opposite end walls (42) defining a first bore (46) for receipt of the connector pin. A ring member (34) movably disposed within the box member defines a second bore (64) generally aligned with the first bore for also receiving the connector pin. A threaded neck (60) connected to the ring member extends perpendicular to the second bore and is received within a through bore of the box member that is disposed perpendicular to the first bore. An internally threaded cap (24) threadedly engages the threaded neck and bears in thrust bearing relationship on the box portion. As the cap is rotated, the ring portion is drawn upwardly as the cap presses downwardly on the box portion, causing the second bore to be moved transversely out of alignment with the first bore. A connector pin received through both first and second bores is clamped therebetween and retained against axial withdrawal from the connector terminal.
Patent CA-2180121-C (CA)
Title: Flue insert to control exhaust gases
Inventor: KAZEN GAIUS D
IPC: F23M9/00
Filed: 1994-12-16
Granted: 2009-06-02
Abstract: A flue insert (50) for insertion into a flue stack (12). The flue insert inc ludes a sleeve (52) that is inserted into the stack so as to function as part of t he stack. A vane (54) is disposed in the sleeve. One end of the vane is fixedly attached to the sleeve. The opposed end of the vane is adjustably attached to the sleeve so thatafter the insert is installed, the overall length of the vane can be sel ectively set.
Patent CA-2180365-C (CA)
Inventor: MCNEEL THOMAS E
IPC: G01N27/49
Filed: 1995-01-12
Granted: 2002-03-19
Abstract: Un procédé permettant de réguler le traitmeent chimique d'une solution consiste à introduire un produit chimique dans ladite solution, à appliquer une tension externe à une électrode de référence ainsi qu'à une électrode de travail d'un capteur voltamétrique tandis que les électrodes sont immergées dans la solution, à mesurer un courant qui traverse l'électrode de travail, à convertir le courant mesuré en un signal de réaction indiquant la concentration du produit chimique de traitement dans la solution, et à utiliser le signal de réaction pour réguler la vitesse d'alimentation en produit de traitement.
Patent CA-2181810-C (CA)
Inventor: MOELLER TORSTEN
IPC: A61K31/135
Filed: 1995-01-26
Granted: 2000-10-24
Abstract: A process for the production of S(+)-ibuprofen-particles having improved flow properties comprises the steps that coarse-crystalline S(+)-ibuprofen is molten and then in a molten condition is finely distributed in a non-solving medium, preferably in cold water, and is chilled therein. This chilling results in a fine-crystalline primary structure that agglomerates to a secondary structure. In this agglomerate form the product is obtained which is filtered out and is dried. Such particles are suitable for direct pressing of tablets, optionally, tableting auxiliary substances being added, also for the production of tablets having a retarded release of the active substance.
Patent CA-2181987-C (CA)
Inventor: KARLSEN JORGEN
IPC: A63C5/04
Filed: 1995-02-13
Granted: 2005-11-15
Abstract: An Alpine pair ski (1) comprises a flat first sliding surface (2) and lateral surfaces (6a, b) provided with an approximately continuous concave sidecut between a first transition line A-A' defining the transition from a main section to a front section (3) and a second transition line E-E' defining the transition from the main section to a rear section (5), the course of a lower lateral edge (7a, b) between the transition lines A-A' and E-E' approximating a continuous curve. The sole on both sides of first sliding surface (2) comprises additional sliding surfaces (4) which extend upwards from the edge of the first sliding surface (2) to the lower lateral edges (7a, b) of the ski with an uplift (Hs) whose value at a point on the lower lateral edge (7a, b) of the ski is given by the length of the perpendicular from this point to said plane of the sole. The additional sliding surfaces (4) extend in the longitudinal direction of the ski at least from the first and second transition lines A-A' and E-E' respectively towards a transversal line C-C' behind the middle of the ski and in that section of the ski where the binding is attached, the width of the ski at the line C-C' being equal to the smallest width of the ski between line A-A' and E-E'. The uplift (Hs) in a lower lateral edge (7a, b) on the additional sliding surfaces (4) substantially increases with the ski's increasing width in the direction of the lines A-A' and E-E' respectively.
Patent CA-2190628-C (CA)
Inventor: BUTLER MARK D
IPC: A61K9/22
Filed: 1996-06-03
Granted: 2000-05-30
Abstract: L'invention se rapporte d'une manière générale à un appareil de confinement implantable fabriqué à partir d'un matériau à perméabilité variable. En particulier, on utilise l'appareil de confinement implantable pour loger un dispositif thérapeutique, tel qu'un dispositif de libération de médicament, un dispositif d'encapsulement cellulaire ou un dispositif de thérapie génique. L'appareil de l'invention permet de placer et de replacer facilement un dispositif thérapeutique sans endommager les tissus associés au matériau à perméabilité variable de l'appareil.
Patent CA-2196684-C (CA)
Inventor: YOUNESSIAN ELLIOT
IPC: A45C5/00
Filed: 1996-06-05
Granted: 2001-07-17
Abstract: La présente invention concerne un bagage formé par pression différentielle, et qui comporte une coque formant couvercle (40) et une coque de base (80). Le couvercle (40) présente une paroi (42) de couvercle qui s'étend perpendiculairement depuis le couvercle vers l'intérieur du bagage. Un bord (44) du couvercle part de la paroi (42) du couvercle perpendiculairement vers le bas. La coque de base (80) présente une paroi de base (82) qui s'étend perpendiculairement depuis la coque de base (80) vers l'intérieur du bagage. Un bord de base (84) part obliquement de la paroi de base (82). Le bord (44) du couvercle et le bord de base (84) se chevauchent, sans être parallèles, quand le bagage est fermé. Il est maintenu fermé par une patte (39) de la paroi (42) du couvercle qui s'adapte à un verrou (90) de la paroi de base (82). Les deux coques sont également alignées par des ergots d'alignement (110) et des évidements (111) que présentent les coques (40, 80).
Patent CA-2197075-C (CA)
Inventor: SEEBER STEFAN
IPC: C12N15/10
Filed: 1995-07-31
Granted: 1999-12-21
Abstract: The use of a circular vector DNA to manufacture a drug to treat mammals or humans by gene therapy, wherein the vector DNA contains a selection marker gene and a DNA sequence that is heterologous for the vector and that causes a modulation, correction or activation of the expression of an endogenous gene or the expression of a gene introduced into the cells of the mammal or human by the vector DNA, is characterized in that the vector nucleic acid (a) is amplified under selection pressure and is split in such a way that said selection marker gene and said heterologous DNA are present on separate DNA  fragments, (b) the DNA fragment that contains said heterologous DNA or both fragments are recircularized into vectors, (c) said DNA fragments are separated before or after the recircularizing, (d) the recircularized DNA  fragment which contains said heterologous DNA is isolated and (e) the recircularized DNA fragment thus obtained is used to manufacture the drug.
Patent CA-2197564-C (CA)
Title: Craquage catalytique avec mcm-49
Inventor: DEGNAN THOMAS FRANCIS
IPC: C10G11/05
Filed: 1995-07-19
Granted: 2006-11-28
Abstract: La présente invention, qui concerne l'utilisation du MCM-49 en craquage catalytique, permet la production de grandes quantités d'oléfines légères.
Patent CA-2213279-C (CA)
Title: Appareil pour distribution successive de mouchoirs en papier et procede de distribution a l'aide de cet appareil
Inventor: MUCKENFUHS DELMAR RAY
IPC: A47K10/42
Filed: 1996-02-20
Granted: 2002-07-23
Abstract: L'invention porte sur un emballage à mouchoirs en papier comprenant un emballage de distribution et des mouchoirs en papier. L'emballage de distribution est pourvu d'un orifice de distribution (16). L'orifice de distribution (16) possède une grande ouverture (20), et une autre, plus petite en forme d'arc (22), distincte et reliée à la première par une liaison en forme d'isthme (24). L'utilisateur peut facilement retirer des mouchoirs par la grande ouverture. Il lui est possible, en outre, d'en introduire dans la petite ouverture par la liaison en forme d'isthme. Par la suite, la distribution de ces mouchoirs peut se faire par la petite ouverture d'une manière systématique, les uns à la suite des autres.
Patent CA-2218369-C (CA)
Title: Transdermal electrotransport delivery of fentanyl and sufentanil
Inventor: SOUTHAM MARY
IPC: A61K31/4535
Filed: 1996-05-22
Granted: 2010-02-09
Abstract: The invention provides an improved electrotransport drug delivery system for analgesic drugs, namely fentanyl and sufentanil. The fentanyl/sufentanil is provided as a water soluble salt (e.g., fentanyl hydrochloride), preferably in a hydrogel formulation, for use in an electrotransport device (10). In accordance with the present invention, a transdermal electrotransport delivered dose of fentanyl/sufentanil is provided which is sufficient to induce analgesia in (e.g., adult) human patients suffering from moderate-to-severe pain associated with major surgical procedures.
Patent CA-2225893-C (CA)
Title: Flexible clip assembly
Inventor: MEYER CHARLES
IPC: F16B21/08
Filed: 1997-12-29
Granted: 2001-10-23
Abstract: A first embodiment of the invention is a clip assembly which includes a hollow cylindrical portion with an unjoined portion along a longitudinal portion of the periphery.  Mating elements are formed on both sides of the unjoined portion.   In a mated configuration,  the mating elements extend radially from the hollow cylindrical portion.  The first mating element includes a distal laterally engaging male mating connector and a distal laterally  engaging  female mating  connector  longitudinally adjacent thereto.   The second mating element includes similar mating connectors  but  in  reverse  order  so  that  the  female connector of a mating element engages the male connector of the other mating element.  The clip assembly further includes panel thickness adjustment wings peripherally adjacent to the mating connectors.  The panel thickness adjustment wings flex to engage structural panels of various thicknesses against detent elements.          The second embodiment of the invention is a rod end clip with panel thickness adjustment wings on both sides of a positioning prong.  A clip is additionally formed for engaging the rod end, such as a cable.
Patent CA-2226927-C (CA)
Title: Ozone generator
Inventor: CROSBIE ROBERT
IPC: C01B13/11
Filed: 1998-03-18
Granted: 1999-11-02
Abstract: An ozone generator of the corona discharge type having a housing which is dimensioned to fit into one of a male end and female end of an air duct of a building and a glass tube of a radius substantially less than a width of the housing.          An electrically conductive inner mesh is fitted over an interior surface of the glass tube and an electrically conductive outer mesh is fitted over an exterior surface of the glass tube.  The ozone generator also has means for generating a high electric potential difference across the electrically conductive meshes.
Patent CA-2227873-C (CA)
Inventor: MOSSER MARK F
IPC: C23F4/00
Filed: 1998-01-27
Granted: 2007-07-10
Abstract: A method for removing surface layers of a metal coating is disclosed. The method comprises applying an aluminum containing slurry to the surface of the metal coating, melting and diffusing the aluminum to form an aluminide layer within the surface of the metal coating, and removing the aluminide layer.
Patent CA-2229393-C (CA)
Title: Eye glass cleaning machine
Inventor: MAINES KENNETH E
IPC: G02C13/00
Filed: 1998-02-11
Granted: 2002-07-02
Abstract: Two similar representative versions of an eye glass cleaning machine constructed in accordance with the principles of the invention are seen. In each version an enclosure providing a base having a bowl forming an eye glass cavity supports a pair of eye glasses to be cleaned by means of adjustable clips. In the first version of the invention, a heated cleaning fluid and waste fluid tank and a rinse water tank are filled by a two-way drain valve. In the second version, a heated cleaning fluid tank, a rinse water tank and a waste tank are filled by a three-way drain valve. In both versions of the invention, an electronics card controls the operation of a pump, air pump and a solenoid valve, which determines from which tank (cleaning fluid or rinse water) the fluid supplied to spray nozzles will be taken. The electronics also controls heating elements in the cleaning fluid and rinse water tanks. The adjustable two-way or three-way drain valve allows the user to rotate a valve plate having a hole until it coincides with the appropriate fill port.
Patent CA-2230439-C (CA)
Inventor: SAMSON BRYCE NEILSON
IPC: C03C3/32
Filed: 1996-08-23
Granted: 2004-07-20
Abstract: An optical fibre amplifier, laser or superluminescent source, consisting of a chalcogenide glass matrix hosting trivalent rare earth ions and which is doped with oxide in the form of a metallic oxide. The device utilizes the properties of the added oxide to improve the fabrication and efficiency of optical waveguide sources, in particular for applications around 1.3 .mu.m. Specifically, the oxide broadens the wavelenght range for pump absorption, broadens the wavelength range for light emission, increases the device efficiency through a change in lifetime of certain laser levels and modifies properties of the glass to prevent crystallization during fibre fabrication. The device exploits the intentional addition of oxide to improve amplifier, laser, glass and fibre properties.
Patent CA-2233963-C (CA)
Inventor: WEBSTER WILTON W JR
IPC: A61B5/296
Filed: 1996-10-04
Granted: 2005-06-21
Abstract: L'invention porte sur un cathéter à électrode destiné à l'électrophysiologie cardiaque. Un corps allongé (11), convenant à une insertion intravasculaire, entoure une pluralité de fils de connexion (19) d'électrode. Une électrode composite comprend une pluralité d'électrodes de pointe (31), et définit une marge (40) le long d'un bord proximal. Chaque électrode de pointe (31) est connectée électriquement à un fil de connexion (19) d'électrode, et est contiguë à au moins un côté d'une autre électrode de pointe (31), le long d'un axe du corps allongé. Chaque électrode de pointe (31) est séparée d'une autre électrode de pointe (31) par un matériau isolant (32). Une électrode en coupe (33) est électriquement connectée à un fil de connexion (19) d'électrode, et définit une cavité (50) conçue pour chevaucher la marge (40) de l'électrode composite (30). L'électrode en coupe (33) est fixée fermement à l'électrode composite (30) et à une extrémité distale du corps allongé (11), et est séparée de l'électrode composite (30) par un matériau isolant (32).
Patent CA-2249428-C (CA)
Title: Method for verifying efficacy of manipulative therapy
Inventor: WRIGHT THOMAS J
IPC: A61B5/0484
Filed: 1997-03-19
Granted: 2005-06-07
Abstract: A method for objectively verifying the efficacy of manipulative therapy is provided. The method includes performing a first dermatomal somatosensory evoked potentials test (82) on a patient (12) to establish a baseline response of the nerve latency period. A manipulative therapy technique (88) is then performed on the patient to relieve nerve root compression. A second dermatomal somatosensory evoked potentials test (90) is then performed, to establish a post-manipulation nerve latency period.