baber/WOPTO huggingface dataset:
Patent CA-2088827-C (CA)
Title: Laparoscopic cannula
Inventor: GENTELIA JOHN S
IPC: A61B1/00
Filed: 1993-02-04
Granted: 2003-11-11
Abstract: A cannula is provided for laparoscopic surgery wherein the cannula comprises a housing and elongated tube with a passageway formed within the housing so that laparoscopic instruments may be passed through the housing and the elongated hollow tube into the abdominal cavity of a patient. A pair of rollers are mounted within the housing, the rollers being spring-urged together to close the passageway through the housing when an instrument is withdrawn. A slidable plate having apertures of different sizes are mounted in the housing with the apertures provided with slitted seals therein to close the passageway through the housing. The varying sized apertures in the slidable plate permit laparoscopic instruments of varying diameters to be used and to maintain an effective seal around the instrument. In another embodiment of the cannula a valve is provided which is closed when the rollers within the housing are in engagement with each other. When a laparoscopic instrument is passed through the housing to separate the rollers, the valve moves to an opened position to permit the laparoscopic instrument to pass therethrough.
Patent CA-2091277-C (CA)
Inventor: BETTS PAUL J SR
IPC: B01L99/00
Filed: 1993-03-09
Granted: 2002-11-19
Abstract: A draining laboratory drying rack system comprises a panel having a plurality of apertures formed therein, a plurality of pegs mounted in the apertures for supporting wet laboratory equipment, a catch drain mounted to the rear of the panel to collect water dripping down the rear of the panel and a drip trough to collect water from the catch drain, water dripping down the front of the panel and water dripping directly from the supported laboratory equipment.  The incorporation of the catch drain on the rear surface of the panel provides effective means to collect, and properly dispose of liquid which can find its way to the rear surface of the panel.
Patent CA-2099240-C (CA)
Inventor: PENNIG DIETMAR
IPC: A61B17/60
Filed: 1993-06-25
Granted: 1996-07-16
Abstract: An external fixator for osteosynthesis features application to the fixation of fractures of small bones such as those of the hand or foot.  A small central unit contains two ball joints which are releasably clamped via a single actuation.  Bone fasteners, such as bone pins or bone screws are releasably clamped, via a single actuation at each of two  clamping units, and each of the clamping units is adjustably clamped to a carrier rod within a wide range of. selected positions, which extends to the smallest of offsets from the central double-ball joint unit, by reason of the fact that the ball of each ball joint is the inner end of one of the respective carrier rods.
Patent CA-2104865-C (CA)
Title: Bacterial leaching process
Inventor: TYAGI RAJESHWAR D
IPC: C22B3/18
Filed: 1992-02-25
Granted: 2002-09-17
Abstract: The present invention relates to a process for removing heavy metals and substantially destroying indicator bacteria pres-ent in municipal sludges, which comprises: lowering, under aerobic conditions, the pH of a municipal sludge from about 7 to 8 to about 2.0 to 2.5 by adding to said sludge 10 % by volume of an inoculum containing a mixture of microorganisms comprising Thi-obacillus thiooxidans ATCC X5127 and Thiobacillus thioparus ATCC 55128 with 1 to 3 g per litre of sulphur, and incubating for a period of at least 40 hours where the heavy metals originally present in said sludge have been substantially solubilized and the concentration of the indicator bacteria has been lowered to a non-toxic level;  and recovering the metals from the low pH treated sludge of step a).
Patent CA-2109223-C (CA)
Title: Vertical metallically loaded polarization splitter and polarization-diversified optical receiver
Inventor: DERI ROBERT JOSEPH
IPC: H04B10/148
Filed: 1992-02-26
Granted: 1997-02-18
Abstract: A polarization diversity receiver (30) comprising a lower optical waveguide (34) and an upper waveguide (36) formed there-over in the area of the receiver.  A rib (32) formed in the lower waveguide away from the receiver directs light along an optical axis in the receiver.  A metal layer (40) deposited over the upper waveguide preferentially couples light of the TE-mode from the lower to the upper waveguide, where it is detected by a p-i-n photo-diode (42).  A second p-i-n photo-diode (46) is formed on the optical axis a distance away from the first photo-diode.  The intervening region (44) acts as a coupling region to couple the remaining TM-mode radiation from the lower to the upper waveguide, where it is detected by the second photo-diode.
Patent CA-2110408-C (CA)
Inventor: MARKLAND THOMAS ARTHUR
IPC: B08B3/10
Filed: 1992-06-01
Granted: 1996-01-09
Abstract: A method and apparatus is provided for dissolving or dispersing a predetermined quantity of granular cleansing agent into a cleansing liquor and delivering the cleansing li-quor to a cleansing application, such as a clothes washing machine. A predetermined quantity of granular cleansing agent (74) is placed in an inner container (54) upon a screen (58). Water from the container is withdrawn and recirculated such that upon reentry to the container it is directed at the screen (58) and diffused to dissolve and disperse the granular cleansing agent (74) forming a solution and diffused to pre-vent the undissolved but wetted cleansing agent from adher-ing to the inner container (54). Preferably, the diffused solu-tion operates to substantially immediately float an island of the undissolved granular cleansing agent in the center of the inner container. Also, the cleansing liquor is preferably not delivered to the cleansing application until after substantially all of the various components within the granular cleansing agent have transformed by appropriate reaction into their "active" state.
Patent CA-2111015-C (CA)
Title: Ionic siloxane as internal mold release agent for polyurethane, polyurethaneurea and polyurea elastomers
Inventor: DEWHURST JOHN ELTON
IPC: B29C33/64
Filed: 1993-12-09
Granted: 1996-10-15
Abstract: In an active hydrogen-containing B-side composition for reaction with a polyisocyanate-containing A-side composition to make a polyurethane or polyurethaneurea elastomer by reaction injection molding, the improvement which comprises a mold release composition which is the reaction product of triethylenediamine and a C2-C21 epoxide reacted in the presence of a carboxy functional siloxane.
Patent CA-2114603-C (CA)
Title: Procede de pilotage d'un dispositif de freinage electro-hydraulique d'un train de roues d'aeronef, et dispositif de mise en oeuvre dudit procede
Inventor: LASBLEIS THIERRY
IPC: B60T13/66
Filed: 1994-01-31
Granted: 1997-11-11
Abstract: L'invention concerne le pilotage d'un dispositif de freinage électro-hydraulique d'un train de roues dont chaque roue est équipée d'un frein actionné à partir des pédales de frein par une servo-valve commandée électriquement par une unité de pilotage qui mesure une information correspondant à l'enfoncement desdites pédales. Conformément à l'invention, lorsque l'aéronef roule à faible vitesse, on organise séparément le freinage pour les roues d'un premier groupe et pour les roues d'un deuxième groupe, avec une loi de variation de la pression commandée en fonction de l'enfoncement des pédales de frein qui est propre à chaque groupe de roues et qui intervient sur toute la plage active d'enfoncement des pédales de frein. L'une des deux lois est une fonction continûment croissante induisant un couple de freinage à partir d'une faible valeur d'enfoncement des pédales de frein, tandis que l'autre loi de freinage est une fonction continûment croissante n'induisant un couple de freinage qu'à partir d'un seuil d'enfoncement prédéterminé desdites pédales.
Patent CA-2115294-C (CA)
Title: Staggered short pleat air filter
Inventor: ADAMS MICHAEL D
IPC: B01D35/02
Filed: 1994-02-09
Granted: 2004-12-07
Abstract: A high velocity air filter includes a hollow, generally cylindrical filter element comprised of a filtering material folded to extend back and forth between inner and outer peripheral surfaces to define a series of pleats extending longitudinally of the filter element.      The inner edge of a plurality of the pleats is a lesser distance from the longitudinal axis of the filter element than the inner edge of the other pleats, thereby forming a plurality of short pleats and a plurality of long pleats.      The inner diameter of the filter element is less crowded than in conventional high velocity air filters. The restriction to airflow is thus lowered without increasing the surface area of the filter media or sacrificing the capacity of the filter element.
Patent CA-2116398-C (CA)
Title: Golf ball containing optical brightener blend
Inventor: SULLIVAN MICHAEL J
IPC: C08K5/00
Filed: 1994-02-24
Granted: 1999-11-02
Abstract: A golf ball with a visible outer layer containing a blend of about 0.01 - 0.05 parts by weight of a thiophene-type optical brightener and about 0.008 - 0.025 parts by weight of a second optical brightener selected from the group consisting of 2,2'-(1,2-ethenediyldi-4,1-phenylene)bisbenzoxazole and derivatives thereof, the parts by weight of optical brightener being based upon 100 parts by weight of the polymeric material. The blend provides for a degree of whiteness comparable to that of 0.1 parts by weight of a thiophene-type optical brightener used alone, and provides for better solubility than results from the use of higher concentrations of 2,2'-(1,2-ethenediyldi-4,1-phenylene)bisbenzoxazole alone.
Patent CA-2116772-C (CA)
Title: Interface utilisateur procedurale
Inventor: BARRETT WILLARD H
IPC: G06F3/048
Filed: 1993-08-26
Granted: 1998-09-22
Abstract: Une interface utilisateur procédurale simplifiée (IUP) pour la gestion du fonctionnement d'un ordinateur (300), définie en termes des étapes ou des procédures requises pour effectuer une opération déterminée. L'IUP fonctionne comme une liste de contrôle graphique qui indique à l'utilisateur ce qui doit être fait puis gère le fonctionnement de l'ordinateur de façon que celui-ci mette en oeuvre l'opération requise. L'IUP fournit, dans une série de panneaux hiérarchiques (50), une représentation des tâches de l'utilisateur au moyen d'icônes chaînées. Les icônes chaînées (58, 60, 62) indiquent les opérations que l'utilisateur doit effectuer pour accomplir une tâche au moyen de l'ordinateur. Les panneaux hiérarchiques qui hébergent les icônes constituent un moyen de regrouper logiquement les étapes correspondant à des tâches connexes. Le principe sous-jacent vise à simplifier le fonctionnement de l'ordinateur en présentant à l'utilisateur uniquement les capacités requises pour effectuer une tâche particulière à un instant donné.
Patent CA-2120709-C (CA)
Title: Enzyme-orthokeratology
Inventor: HARRIS DONALD H
IPC: A61F9/00
Filed: 1992-10-15
Granted: 2004-12-28
Abstract: A method and apparatus for correcting refractive errors of the eye are disclosed. Accelerated reshaping of the corneal tissue is accomplished by administering one or more enzymes and/or other agents to the eye which temporarily soften the cornea. The cornea is thereafter fitted with a rigid contact lens or a series of lenses which have a concave curvature that will correct a refractive error. The softened cornea then rapidly reshapes its convex curvature to the concave curvature of the contact lens or series of lenses, thereby rendering the eye emmetropic. The enzymes and/or other agents then dissipate from the cornea, and the cornea "hardens" to retain the new emmetropic shape. After "hardening" has occurred, the lens rendering the eye emmetropic is removed.
Patent CA-2121305-C (CA)
Title: Stabilized polyvinyl chloride
Inventor: DREWES ROLF
IPC: C08K3/00
Filed: 1994-04-14
Granted: 2003-08-19
Abstract: Use of an inorganic or organic zinc compound and a terminal epoxide compound gives a high level of stabilization of PVC.
Patent CA-2124213-C (CA)
Inventor: FALK OTTO
IPC: B02B3/02
Filed: 1993-10-06
Granted: 2004-01-27
Abstract: Process for the processing of whole-wheat cereals in which the grains are subject to a shower wash. For this, only little more water is employed than is necessary to enclose the surface of the grains. In a counterflow, air is conducted past the grains, so that excess water is eliminated. The grains pre-processed this way are exposed to collision turbulence processes (Fig. 1).
Patent CA-2124336-C (CA)
Inventor: MONTGOMERY ROBERT E
IPC: A61K8/60
Filed: 1992-11-25
Granted: 1998-11-17
Abstract: A stabilized aqueous dentifrice composition capable of producing or, in the presence of saliva, leading to the production of antimicrobial effective concentrations of hypothiocyanite ions (OSCN-) are herein described. The composition contains both an oxidoreductase enzyme and its specific substrate, for the purpose of producing hydrogen peroxide of at least the minimum effective concentration. The aqueous dentifrice compositions of the present invention can be stabilized against premature enzyme/substrate interaction by controlling the level of dissolved oxygen in the aqueous dentifrice carrier. Optionally, a peroxidase enzyme may be included to act upon the aforementioned hydrogen peroxide, thereby oxidizing thiocyanate ions to produce the antimicrobial concentrations of hypothiocyanite ions (OSCN-). Optionally, thiocyanate ions may also be included in the compositions of this invention in an amount sufficient, together with the other intensive ingredients, to produce in excess of about 100 micro-moles/liter/minute of hypothiocyanite ions during use. The amount of water contained in dentifrice compositions is not important to the stability of the composition, provided that the level of oxygen is kept in control. The method of making the dentifrice composition to contain minimal amounts of oxygen is also dislosed.
Patent CA-2125922-C (CA)
Title: Electrostatographic single-pass multiple-station printer
Inventor: DE BOCK JAN JULIEN IRMA
IPC: G03G15/22
Filed: 1994-06-15
Granted: 1999-12-07
Abstract: An electrostatographic single-pass multiple station multi-colour printer for forming an image onto a web (12), eg of paper, is described. The printer comprises a plurality of toner image-producing electrostatographic printing stations (A, B, C, D, E) each having rotatable endless surface means (26) such as the photoconductive surface of a cylindrical drum (24) onto which a toner image can be formed. The paper web (12) is conveyed in succession past the printing stations (A, B, C, D, E).    The speed and tension of the web (12) is controlled while it is running past the printing stations (A, B, C, D, E).    Guiding rollers (36) which determine for the web (12) wrapping angles (.omega.) of about 15° about the drum surface.    A corona device transfers the toner image on each drum onto the web (12). The corona device, the wrapping angles .omega. and the web tension are such that adherent contact of the web (12) with the drum surface (26) is such that the moving paper web (12) controls the peripheral speed of the drum in synchronism with the movement of said web. Slippage between the drum surface (26) and the paper web (12) is thereby eliminated, enabling accurate registration of superimposed images on the paper web (12).
Patent CA-2127987-C (CA)
Title: Pharmaceutical bacteriocin compositions
Inventor: BLACKBURN PETER
IPC: A61K31/19
Filed: 1993-01-15
Granted: 2002-08-13
Abstract: Compositions comprising lanthionine-containing bacteriocins such as nisin act as bactericides under conditions such as those found in the gastrointestinal tract. In a preferred embodiment pharmaceutical preparations containing the compositions are used for the control of bacteria responsible for disorders of the gastrointestinal tract.
Patent CA-2129776-C (CA)
Inventor: DERNOVSEK JOHN R
IPC: F16K1/226
Filed: 1994-08-09
Granted: 2000-10-17
Abstract: There is disclosed a butterfly valve having a body connectable in a flowline and a seat which lines its inner side, and a disc which has stem portions at its opposite ends closely received within openings in the seat and body to permit the disc to be rotated between opened and closed positions. A ring which is restrained from movement with one of the disc and seat in a direction transverse to the stem portions substantially fills a groove in the other of the disc and seat which surrounds each stem portions so as to seal between the seat, disc and such stem portion.
Patent CA-2130641-C (CA)
Title: Parallelogram lift axle suspension system with a control for axle caster adjustment
Inventor: GOTTSCHALK MICHAEL J
IPC: B60G9/02
Filed: 1994-08-22
Granted: 1999-01-05
Abstract: A twin beam parallelogram-type lift axle suspension system includes  a bi-directional  airlift  spring having opposite end plates at either end thereof located between two parallel control arms wherein expansion of the air spring  pivots  the  upper  and  lower  control  arms  with respect to a frame bracket thereby lifting an axle and wheels  attached thereto  from engagement with the  road surface.  The end plates of the bi-directional air spring move  about  equally  in  opposite  directions  and  remain substantially   parallel   to   one   another   throughout expansion and contraction of the  air  spring so  as  to about equally distribute forces of expansion of the air spring between the upper and lower control arms.   The system of the instant invention also  includes  a shock absorber having one end attached to the upper control arm and another end attached to the lower control arm so as to locate the shock absorber forward of the axle thereby minimizing shock travel and maximizing shock life.   The upper control arm is pivotally connected to an axle seat by a bolt  including  an eccentric  cam mechanism which allows one to adjust the caster angle of the axle when the need arises.
Patent CA-2131965-C (CA)
Inventor: BOJAR JAMES A
IPC: A01B1/22
Filed: 1994-09-13
Granted: 1996-11-12
Abstract: Disclosure is made of an adjustable pitch garden hoe tool head (16) as an article of manufacture wherein the pitch of the garden hoe tool head (16) head assembly can be adjusted to control the dig or "bite" into the soil and  comprises  ferrule  legs  (11,  11')  mounted  on  an extended handle (1) and adjustable pitch garden hoe tool head  (16)  mounted on the ferrule legs  (11,  11')  and a modified compression V spring  (10) having a three sided trapezoidal  shape  with  an  apex  segment  of  modified compression V spring (23) which is a straight segment at the apex mounted within the ferrule legs  (11,  11')  and arms  (9,  9')  of the modified compression V spring  (10) extending into pitch set slots (4, 4') and pitch set stops (3,3') in vertical sides (5, 5') of base blade (6) of the garden hoe tool head (16).  Further disclosure is made of a cutting notch (8) on the bottom back of either or both of vertical sides  (5,5')  of base blade and the cutting notch and all edges of vertical sides 5,5' of base blade and garden hoe tool base blade  (6)  are sharpened to a cutting edge.
Patent CA-2134077-C (CA)
Title: 4-imidomethyl-1-[2'phenyl-2'oxoethyl-]piperidines as serotonin 5ht2-antagonists, their preparation and use in therapy
Inventor: NIEDUZAK THADDEUS R
IPC: A61P25/00
Filed: 1993-03-24
Granted: 2002-05-21
Abstract: The present invention is directed to a new class of serotonin 5HT2 antagonists of formula (I) and their use in the treatment of a variety of diseases, in which R is represented by hydrogen, halog-en, C1-4 alkyl, C1-4 alkoxy, -CF3, -OH, or -COF3; and A is repre-sented by one of the following imide derivatives in which R1 and R2 are each independently represented by (Ia), (Ib), (Ic), (Id), (Ie), (If), (Ig), (Ih), hydrogen, halogen, C1-4 alkyl, C1-4 alkoxy, -CF3, -OH, or -OCF3; and the pharmaceutically acceptable salts there-of.
Patent CA-2134905-C (CA)
Title: Silicon polyelectrolytes for pitch deposit control
Inventor: SHETTY CHANDRASHEKAR S
IPC: C02F1/56
Filed: 1994-11-02
Granted: 2000-10-17
Abstract: A method for controlling pitch in papermaking systems which comprises the step of adding a hydrophobic polyelectrolyte copolymer coagulant to pulp and paper process water. The hydrophobic polyelectrolyte copolymer coagulant preferably comprises a first monomer selected from the group of hydrophilic monomers and hydrophobic monomers, and a vinyl siloxane monomer.
Patent CA-2135170-C (CA)
Title: Luminometer with reduced sample crosstalk
Inventor: SMETHERS RICK T
IPC: G01N35/02
Filed: 1993-05-03
Granted: 2000-01-25
Abstract: A luminometer is described comprising a tray for receiving an array of sample wells, a photodetector assembly, and means for relatively moving the tray and photodetector assembly in one direction to align the sample wells received by the tray in a predetermined sequence with the photodetector assembly. The photodetector assembly of the luminometer includes a stage, a photodetection head (73) having a detection aperture permitting passage of light therethrough, a means for mounting the photodetection head to the stage that permits movement of the head in a direction substantially normal to the direction of relative tray and photodetector assembly movement, and a means for biasing the photodetection head toward a selected sample well (72) so that the detection aperture is substantially isolated from light emitted from adjacent wells. Internal and external photodetector calibration systems and a sample heater are also contemplated.
Patent CA-2140918-C (CA)
Inventor: ROSELLE BRIAN JOSEPH
IPC: B65D81/30
Filed: 1993-06-28
Granted: 1998-09-29
Abstract: The present invention provides a filled package which exhibits a substantially colorless transparent appearance. The package is made of a substantially transparent container (10) which exhibits the tint of a first color. A substantially transparent liquid (II) which exhibits the tint of a second color which is different than the first color is housed in the container (10). The tint of the first color of the container (10) and the tint of the second color of the liquid (II) cooperate with one another such that the tinted container exhibits a substantially colorless transparent appearance when filled with the tinted liquid.
Patent CA-2141704-C (CA)
Inventor: ANDRE FREDERIC
IPC: A61K47/28
Filed: 1995-02-02
Granted: 2001-07-03
Abstract: Concentrated aq. solns. contg. argatroban (II), one or more micelle-forming agents, esp. a cholic acid deriv. of formula (I), and one or more lipoids (III) esp. a phosphatide, are new. R1, R2, R3 = H, OH, or exocyclic keto; R4 = carboxy, opt. attached through an amide linkage to the amine of an amino acid. The steroid skeleton may further contain one or two double bonds.
Patent CA-2148575-C (CA)
Inventor: FOLSOM CLINT
IPC: E21B33/06
Filed: 1992-01-29
Granted: 1998-01-06
Abstract: An improved rotary blowout preventer having a rotary housing rotably mounted within an outer housing and carrying an annular packer assembly hydraulically actuated by fluid circulated through the outer housing by hydraulic pumps. An annular adapter is detachably and reattachably connected to an upper rim of the rotary housing.  The adapter has a tubular, elastomeric sleeve detachably and reattachably connected thereto that depends within the rotary housing adjacent the packer assembly.  A drill pipe is received within the sleeve and is sealably engaged thereby when the packer assembly is urged inwardly by the circulated hydraulic fluid.  The sleeve protects the packer assembly from wear and is easily replaced with other sleeves of like configuration.  The sleeve has a plurality of rigid grippers seated therein which extend flush with an inner surface thereof for gripping the drill pipe to facilitate concomitant rotation of the sleeve and rotary housing therewith.  The circulating pumps have a heat exchanger connected thereto for cooling the hydraulic fluid which reduces the internal temperature of the rotary blowout preventer to extend the operating life of various bearing and seal assemblies commonly found therein.  Filters are provided to remove foreign particulate matter dislodged from the outer casing by the circulating hydraulic fluid.