baber/WOPTO huggingface dataset:
Patent CA-2030637-C (CA)
Title: Polymer mixture comprising polybutylene terephthalate and thermoplastic elastomer; articles formed therefrom
Inventor: DE BOER JAN
IPC: C08L25/18
Filed: 1990-11-22
Granted: 2002-01-15
Abstract: The invention relates to polymer mixtures which comprise a polybutylene terephthalate, a ther-moplastic elastomer, and a brominated polystyrene. The polymer mixtures according to the invention have a com-bination of the following favourable properties: a good flexibility, a good flow of the melt, good flame-retar-ding properties and a high tracking index.
Patent CA-2031044-C (CA)
Title: Method of making a cathode from tungsten powder
Inventor: BRANOVICH LOUIS E
IPC: H01J1/28
Filed: 1990-11-28
Granted: 1996-07-30
Abstract: A cathode is made from tungsten powder using as an impreg-nant the product formed from adding about 1 mole of a member se-lected from the group consisting of zirconium, zirconium dioxide, hafnium, hafnium dioxide, uranium, uranium dioxide, titanium, and titanium dioxide to about 50 to about 100 moles of a compound se-lected from the group consisting of Ba3A12O6, Ba3WO6, and Ba4A12O7.
Patent CA-2044676-C (CA)
Title: Pharmaceutical composition for rectal administration of active principles exhibiting a prevalently topical medication action at the colon level
Inventor: FRIGERIO GIULIANO
IPC: A61P31/04
Filed: 1991-06-14
Granted: 2003-04-01
Abstract: The invention provides a pharmaceutical composition for the rectal administration of active principles which exhibit a prevalently topical medication action at the colon level, characterised in that said active principles are formulated in a fluid vehicle able to generate a foam on rectal administration.
Patent CA-2046258-C (CA)
Title: Apparatus and method for image area identification
Inventor: THOMPSON TIMOTHY J
IPC: H04N1/40
Filed: 1991-07-04
Granted: 1996-04-30
Abstract: A flexible technique that is robust in the presence of noise and distortion is disclosed for locating and utilizing fiducial markings to locate predetermined areas within an image. Initially, a set of candidate markings is determined, one marking from within each of a plurality of predesignated areas of a scanned image. Thereafter, an estimate of a set of image distortion factors relative to an ideally registered image of the same type as the scanned image is derived. Predicted locations for the fiducial markings are derived using this estimated set of image distortion factors. If the difference in location between the actual location of any candidate marking and its predicted location is greater than a predetermined threshold, at least one such candidate is removed from the set of candidate markings. The estimation and removal processes are repeated, utilizing the new current set of candidate fiducial markings until all remaining candidate markings are within a predetermined distance of their predicted locations. Predetermined areas within the scanned image can thereafter be accurately located by combining the known location of the area within an ideal image with the final estimated set of image distortion factors. The predicted location may be further improved by using a weighted average of the ideal versus the actual fiducial marking differences, to account for local non-linear variations.
Patent CA-2046370-C (CA)
Title: Disc brake assembly
Inventor: PAQUET J JACQUES
IPC: F16D65/14
Filed: 1991-07-05
Granted: 2001-08-07
Abstract: In a disc brake for a heavy road vehicle there is provided a mechanically preloaded brake assembly which includes a brake housing, a median wall in the brake housing parallel to the disc which is also in the housing. The disc is mounted to the adapter sleeve of the wheel, and the housing is mounted to an annular ring mounted to an axle of the vehicle. A pressure plate is provided within the housing and located between the annular intermediate wall and the housing wall opposite from the disc and is parallel thereto. The brake lining ring including a backing plate is provided adjacent a radial friction surface of the disc, and push rods extend between the pressure plate and the backing plate of the brake lining ring. A spring extends between the housing wall and the pressure plate urging the pressure plate and the brake lining ring against the friction surface of the disc, and a pneumatic bladder is provided between the pressure plate and the annular inter-mediate wall in order to overcome the urging of the spring when pneumatic pressure is supplied within the bladder.
Patent CA-2053682-C (CA)
Inventor: IRWIN JAMES M
IPC: F16H63/30
Filed: 1991-10-18
Granted: 1995-10-17
Abstract: An auxiliary transmission shift control system which combines the pressurized air supply lines for the range and splitter control switches mounted on the gear range selector lever in the vehicle cab and, therefore, eliminates one pressurized supply line. The interlock function (preventing shifting the splitter ON while in LOW range) is accomplished by preventing depressurization of the OFF side of the splitter cylinder if the range cylinder is in LOW position. Depressurization is prevented by pressurizing the OFF side of the splitter cylinder via a passageway connecting with the LOW sidé of the range cylinder.
Patent CA-2056656-C (CA)
Inventor: PETERSON RUDOLPH ANDREW JR
IPC: F02N11/08
Filed: 1991-12-02
Granted: 1995-10-17
Abstract: An interlock circuit is provided wherein a foot switch connected through a diode to the alternator is depressed during rope-pull starting and provides power from the alternator to energize a relay and disable a magneto kill circuit to facilitate manual start.  As the engine turns over and current flows from the alternator, the relay is bootstrapped to the energized position so that the engine remains running even after the foot switch is released. Normal interlock features, such as those which rely on operator presence or the transmission being in neutral, remain operational without additional switches and without need for a battery being present in the circuit.
Patent CA-2065692-C (CA)
Title: Standing aid for use with a checkout counter
Inventor: WILDER WILLIAM DAVID
IPC: A47C9/02
Filed: 1992-04-09
Granted: 1995-10-17
Abstract: A standing aid for use with a checkout counter to assist an operator of the checkout counter while standing above a floor, comprising a base frame adapted to be mounted above the floor adjacent the checkout counter, a buttocks cushion adapted for engaging the buttocks of the operator of the checkout counter while standing, and support means mounted to the base frame for movably supporting the buttocks cushion above the floor in a plurality of vertical positions and in a plurality of lateral positions, the buttocks cushion being pivotally mounted to the support means.
Patent CA-2068711-C (CA)
Title: Apparatus for monitoring physiological data to detect drug impairment
Inventor: MAUCH BARBARA J
IPC: A61B3/113
Filed: 1992-05-14
Granted: 1997-09-09
Abstract: A non-invasive apparatus for monitoring physiological responses for detecting the presence of drug impairment.  The oculomotor and pupillary system is monitored and evaluated to detect the ingestion of drugs and the impairing effect or influence thereof.  The horizontal, vertical, oblique and torsional eye movement, eye lid blink activity as well as the size and reactivity of the pupil are the primary data sources.  An enclosed chamber surrounds each of the eyes of the subject, and thereby precludes the admission of ambient light.  Within each chamber are disposed point sources of infrared radiation specifically oriented with respect to the subject's eye.  An infrared sensitive video camera is positioned to minimize the effect of cosine compression within each chamber relative to the subject and is positioned with respect to the infrared radiation sources in order to provide maximum contrast between the pupil and iris of the eye.  To detect movement of the eye in response to visible stimulus, a plurality of low intensity, visible light sources are disposed horizontally and vertically within each chamber.  The sequential illumination of the visible light sources simulates eye movement while precluding pupil reaction thereto.  The output of the video camera is processed concurrently with data responsive to other physiological responses to determine drug impairment.
Patent CA-2080616-C (CA)
Title: Endoscopic multiple ligating clip applier with rotating shaft
Inventor: HUGHETT J DAVID
IPC: A61B17/12
Filed: 1992-10-15
Granted: 2001-06-19
Abstract: An endoscopic clip applying system as described which contains a venting system and a clip applying support system which prevents closure of the mechanism before firing. The applier's jaws are spaced apart no further than the width of the applier shaft, even when holding a clip. Also, the system ensures proper loading of the clips and prevents them from falling out during loading.     Further, the system describes an easily manufacturable, positively opening system which has minimized size requirements. Furthermore, a lock-out mechanism is provided so that the mechanism may not be inadvertently fired. The shaft resists excessive torque as well as holds the clip in place during firing. There are provisions for sealant and non back-up of the clips, as well as features which make the clip properly placed for closure. In an alternate embodiment, the clip applier shaft rotates about its handle mechanism.
Patent CA-2082629-C (CA)
Title: Novel method for preparing 3-amino-2-chloro-4-alkylpyridines
Inventor: GROZINGER KARL G
IPC: C07D213/82
Filed: 1992-05-29
Granted: 2003-09-16
Abstract: A process for the preparation of a 3-amino-2-chloro-4-alkylpyridine of formula (I), wherein R is alkyl of from one to three carbon atoms, an intermediate in the preparation of certain 5,11-dihydro-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepine compounds use-ful in the prevention and treatment of HIV infection.
Patent CA-2083354-C (CA)
Title: Dowel with rocker, cast in a single piece, and its method of casting
Inventor: VERNET FRANCK
IPC: F16B13/04
Filed: 1992-11-19
Granted: 1996-01-23
Abstract: The dowel comprises a body (1), with two elongate lateral arms (4), each having a groove and a bore, opening out between the arms (4) for a fixing screw (22) to pass through, a rocker (2) sliding and pivoting on the arms (4) of the body (1) by means of two pivots (10) in their grooves, with a ramp which interacts with the end of the screw (22) in order to cause the rocker (2) to pivot and an orifice for interacting, in the tilted position, with the fixing screw (22) and causing the rocker (2) to slide. Shearable pins (19) are provided for temporarily holding the rocker (2), detachable under the action of the screw (22) and which, when the dowel is inserted into a wall, drive the rocker (2) with the body (1).  The body (1) and the rocker (2) are moulded simultaneously as a single piece from injectable material.  The dowel can be used for fixing a component to a gypsum board.
Patent CA-2095232-C (CA)
Title: Environmentally improved shot
Inventor: HUFFMAN JOHN
IPC: B22F1/17
Filed: 1991-10-30
Granted: 2000-01-25
Abstract: Environmentally improved alternatives to lead shot are provided that overcoat a lead core with a chemically inert polymer bonded thereto by heating lead shot coated with the polymer above the melting point of the lead shot, or by substituting for lead a combination of dense metal and light metal, and either a core/coating bimetallic sphere relationship or a matrix of light metal provided with powder of a heavy metal embedded therein. The composite shot exhibits a density similar to that of lead.
Patent CA-2096073-C (CA)
Title: Low-pressure discharge lamp, particularly compact fluorescent lamp, especially for outdoor and indoor use
Inventor: SCHAFNITZEL HUBERT
IPC: H01J61/33
Filed: 1993-05-12
Granted: 2002-07-16
Abstract: To permit operation of a compact fluorescent lamp in an outdoor environment, for example at an annual average temperature of 10°C, a U-shaped discharge vessel has two straight legs of essentially circular cross section, connected by a cross-connecting portion (10) forming a 180° bend, which, to permit such outdoor use, has its inner diameter constricted from a transition with the longitudinal legs to an apex point of the bend. Preferably, the constriction results in an essentially elliptical cross section, in which the relationship of the minor axis (d) to the major axis (D) is   the minor axis (d) extending in the direction of the legs, and the major axis (D) having a dimension corresponding about to the inner diameter of the legs. Preferably, the elliptical shape is obtained by thickening the outermost wall (10a) of the cross-connecting portion (10). The arrangement provides for insulation of the region where the cold spot forms so that, even under lower ambient temperatures, a suitable cold-spot temperature, which controls vapor pressure and vapor density in the lamp in operation, is obtained.
Patent CA-2100668-C (CA)
Title: Valve rotative de servodirection
Inventor: BISHOP ARTHUR ERNEST
IPC: B62D5/083
Filed: 1992-04-30
Granted: 1999-01-26
Abstract: La présente invention vise une vanne à opercule tournant pour servodirection hydraulique de construction traditionnelle se distinguant en ce que les caractéristiques de la vanne lorsqu'elle est en position médiane sont déterminées par un assemblage d'éléments à roulement (22) et des paires d'éléments à encoches (10, 20) disposés de manière à produire une détente entre l'arbre d'admission (1) et le manchon ou l'élément entraîné (2), un élément à encoche (2) de chaque paire étant fixé à un composant porteur (11) lui-même relié au manchon ou à l'élément entraîné (2) par des dispositifs de fixation (13) qui, durant l'assemblage, peuvent se déplacer sous l'action de ressorts (23) appuyant sur les éléments à encoches (20) et de ce fait prendre une position assurant que, une fois l'assemblage terminé, les éléments à encoches (10, 20) et les éléments à roulement (22) occupent précisément la position permettant d'engendrer le mouvement de détente requis.
Patent CA-2101102-C (CA)
Inventor: GEORGE BILLY L
IPC: E04D5/00
Filed: 1993-07-22
Granted: 2007-10-02
Abstract: A process for providing asphalt-based roofing products includes the steps of: providing a hot asphalt surface, applying a non-asphalt adhesive to the asphalt surface; and embedding a plurality of roofing granules in a hot asphalt surface. Such a product generally leads to roofing products which are improved with respect to performance, especially with respect to adherence of roofing granules within the product. The invention includes within its scope products comprising asphalt based substrates having roofing granules embedded therein, a non-asphalt adhesive being provided at the interface between the hot asphalt and the roofing granules.
Patent CA-2104357-C (CA)
Inventor: GAY RAYMOND W
IPC: B65D1/20
Filed: 1993-08-18
Granted: 1999-04-20
Abstract: ABSTRACT OF THE INVENTION A one-piece plastic drum is formed with a top, bottom and sidewall.  The top is profiled to form a sump around an access opening so that when the drum is turned upside down, all the liquids are dispensed from the drum.
Patent CA-2109378-C (CA)
Inventor: CARROLL JOHN B
IPC: B60T17/22
Filed: 1993-10-27
Granted: 1998-01-20
Abstract: A railway car vent valve device having a stabilizer valve that is selectively operable to disable the vent valve device during a single car test procedure in which the service stability of the car control valve is checked.       The stabilizer valve is automatically reset when the car brake pipe pressure drops below a predetermined value, such as  occurs  when  the  single  car  test  apparatus  is disconnected from the. car brake pipe following completion of the single car test procedure.
Patent CA-2112406-C (CA)
Inventor: NILSSON RUTGER
IPC: A01J5/017
Filed: 1992-06-23
Granted: 2002-09-17
Abstract: A device for automatic removal of a milking means (6) comprises an operating unit (2) having a cord drum with a cord (13), and a driving means for turning the cord drum for winding the cord on the latter. The free end of the cord is connected to the milking means, whereby the cord pulls the milking means off the teats of the animal, as the cord drum is turned by the driving means. According to the invention the driving means comprises a pneumatically operated mo-tor. The advantage is that the operating unit can be made compact and with a low weight, and that the milker can un-wind the cord without any substantial resistance from the motor, when the motor is inactivated.
Patent CA-2114208-C (CA)
Title: Prosthetic joint system for bone replacement
Inventor: BROOKS CALEB EMERSON
IPC: A61F2/08
Filed: 1991-07-29
Granted: 2003-10-14
Abstract: A prosthetic joint system is provided for use when replacement of bone is required. The system includes (a) an elongated stem (13) having a joint motion surface (24) at one end and an outside surface which includes at least one tap-ered portion (26); (b) a sleeve (32) for fixation to the patient's bone which has an internal taper (50) for locking engagement with the at least one tapered portion (26); (c) a bone replacement element (22, 54, 64), which can be a bone graft (22); and (d) means (26, 28, 30, 34, 40, 42, 52, 56, 66, 68) for attaching the bone re-placement element (22, 54, 64) to the stem (13) at a location between the joint motion surface (24) and the sleeve (32). In the case of bone grafts (22), the sys-tem can include a second sleeve (34) for implantation in the graft (22) and a sec-ond tapered portion (28) on the stem (13) for locking engagement with the sec-ond sleeve (34). Preferably, a series of mating stems (13), sleeves (32), and bone replacement elements (54, 64) (or second sleeves (34) in the case of bone grafts (22)) are provided.
Patent CA-2117384-C (CA)
Title: Head impact force diversion system
Inventor: CARTWRIGHT RUDOLPH
IPC: A42B3/04
Filed: 1993-01-07
Granted: 2005-05-10
Abstract: A head impact force diversion system utilizes an apertured helmet (I), a rigid transfer arm (6), and a vest (8). the helmet, possessing an opening associated with an elevation (2) which may be pivotable upon the helmet (I) or integral with its surface, and vest (8) are worn in a conventional manner. The rigid transfer arm (6) is mounted and affixed to the vest and extends upward from the mounting, arches near and enters the aperture of the helmet, and terminates underneath the elevation. This system permits the usual range of motion of the head and neck during various activities and protects the head and neck when the helmet receives an impact force.
Patent CA-2119697-C (CA)
Inventor: MERMELSTEIN PAUL
IPC: G10L19/12
Filed: 1994-03-23
Granted: 2000-06-27
Abstract: REDUCING SEARCH COMPLEXITY FOR CODE-EXCITED LINEAR             PREDICTION (CELP) CODING            Abstract of the Disclosure A code-excited linear prediction (CELP) coding method and code divide the residual signal into frequency bands. Codebooks provided for each band decrease in size with increasing band frequency.  Reduction in codebook size with increasing frequency together with reduction in sampling rate with decreasing frequency provide reductions in codebook search complexity that allow real time implementation on digital signal processor chips.
Patent CA-2121029-C (CA)
Title: Method of driving a turbine in rotation by means of a jet device
Inventor: MARTINEZ MICHELE
IPC: F01D1/02
Filed: 1992-10-09
Granted: 2004-02-03
Abstract: In a method for using a turbine at variable speeds and power levels, a Venturi-effect injector (14) is placed upstream of a turbine (12) and converts a pressure command into a mixed fluid mass flow command. Sensors (19) and a regulation means (50) enable the speed of the turbine (12) to be adapted to a reference speed.
Patent CA-2124877-C (CA)
Title: Silanes with hydrophilic groups, their synthesis and use as surfactants in aqueous media
Inventor: KLEIN KLAUS-DIETER
IPC: C09K23/54
Filed: 1994-06-01
Granted: 1999-02-02
Abstract: Silanes of the general formula (see fig. I) wherein R1,  R2 and R3 in the molecule are the same or different and represent aliphatic hydrocarbon groups, R4   is a divalent hydrocarbon group with 3 to 14 carbon atoms, R5   is a group having the formula -O(CH2)b- or a polyether group having the formula -(OCnH2n)c-, wherein b has a value of 1 to 6, n has an average value of 2 to 2.5 c has a value of 1 to 10, and is 0 or 1, which fulfill the condition that they lower the surface tension of a 1% by weight aqueous solution to a value of ~ 25 mN/m at 25°C, measured with a Du Noüy tensiometer. The silanes are biologically degradable, resistant to hydrolysis and have pronounced surface active properties.
Patent CA-2124890-C (CA)
Title: Electrosurgical instrument
Inventor: SMITH ROGER F
IPC: A61B18/00
Filed: 1994-06-01
Granted: 2006-10-31
Abstract: A simple and reliable electrosurgical instrument includes a cable having a main contact wire and first and second insulated switch wires. The cable is received into a main member having three electrical terminals to secure the three wires to three electrically isolated conducting strips which are mounted longitudinally in a fluid-sealed switch assembly. The main contact wire is connected to the main conducting strip, and the first and second switch wires are connected to the first and second switch conducting strips. The main conducting strip permanently connects the main contact wire to a socket which receives a electrode blade. A switch device selectively connects the main conducting strip to one of the two switch conducting strips. When a user pushes one of two buttons mounted on the outside of the electrosurgical instrument, the instrument provides a cutting current or a coagulation current.
Patent CA-2125978-C (CA)
Title: Improvements in chemical compounds
Inventor: BRIDGER GARY JAMES
IPC: C07D401/14
Filed: 1992-12-16
Granted: 2005-09-20
Abstract: Pharmaceutical compsn. comprises a linked cyclic cpd. of formula Z-R-A-R1-Y (I) or an acid addn. salt or metal complex of (I), in admixt. or association with a diluent or carrier. In (I) Z and Y are cyclic polyamine moiety contg. 9-32 ring members and 3-8 amine N atoms spaced by at least 2C atoms, A is aromatic or heteroaromatic moiety, R and R1 are opt. substd. alkylene chain or a heteroatom-contg. chain. More specifically, R and R1 are linked to N atoms in Z and Y, and are esp. CH2, each of Y, Z has 9-30 (esp. 10-15) ring members and 3-6 amine nitrogens.
Patent CA-2129333-C (CA)
Inventor: ZAMORA JOHN N
IPC: C08F2/00
Filed: 1993-02-18
Granted: 2005-01-04
Abstract: A process for the production of an ethanol solution of an ethyl or butyl alkyl half-ester copolymer of maleic anhydride and an alkyl vinyl ether which comprises: (a) copolymerizing the monomers in acetone as solvent by simultaneously feeding molten maleic anhydride, a molar excess of methyl vinyl ether, and a solution of a free radical initiator in acetone, into a reactor pre-charged with acetone, at about 68-85 °C; preferably 70-80 °C;  (b) esterifying the acetone solution of said copolymer with ethanol or butanol; and (c) solvent exchanging ethanol for acetone by continuously injecting vapors of ethanol at about 85-95°C into said copolymer solution while simultaneously distilling out acetone therefrom at atmospheric pressure.
Patent CA-2134223-C (CA)
Inventor: CRONIN DENNIS C
IPC: D21F2/00
Filed: 1993-06-08
Granted: 1997-04-08
Abstract: A curved suction box apparatus (34) is disclosed for guiding a web (W) towards a nip (N) of a nip press (32).  The appara-tus includes an initial shoe (36) which is disposed upstream relative to the nip (N), the shoe defining a convex surface (46) for guiding the web (W).  A box (40) is disposed downstream relative to the initial shoe (36) for guiding the web (W) from the initial shoe (36).  The box (40) is connected to a partial vacuum (42).
Patent CA-2139380-C (CA)
Inventor: BABJAK JOHN R
IPC: C07C57/42
Filed: 1994-12-30
Granted: 1997-12-23
Abstract: Anhydride-functional polymerizable monomers having the structure:       and polymers and reactive compositions prepared from these monomers are disclosed.  The reactive compositions are especially useful in primer, topcoat, and in clearcoat/ basecoat applications.