baber/WOPTO huggingface dataset:
Patent CA-2023703-C (CA)
Title: Medical electrical lead with polymeric monolithic controlled release device and method of manufacture
Inventor: DI DOMENICO EDWARD D
IPC: A61K9/70
Filed: 1990-08-21
Granted: 1995-05-16
Abstract: A cardiac pacing lead or other stimulation lead carrying a steroid compounded within a polymer matrix. The steroid is dispersed in thermoplastic or thermoset polyurethane or polyurea forming monomers or prepolymers. The mixture is then chain extended by addition of the appropriate difunctional or multifunctional isocyanate, hydroxyl or amine curing agent to form a solid polymer. The resulting formulation is molded or cast into a desired shape, and incorporated in the distal end of a medical electrical lead, adjacent to or within the electrode.  In a preferred embodiment, the medical lead employs an extendable helix which is screwed into body tissue, and the polymer containing the drug takes the form of a generally dimensionally stable annular member mounted to the lead, encircling the helix.
Patent CA-2027017-C (CA)
Title: Asphalt reclamation unit with discharge feed and improved hot air flow
Inventor: O'BRIEN WILLIAM J
IPC: E01C19/08
Filed: 1990-10-05
Granted: 1997-05-20
Abstract: A unit for heating initially solid asphaltic material to provide asphaltic concrete in a condition suitable for application, including an inner enclosure defining a volume for containing the material to be heated, an outer enclosure surrounding and spaced from the inner enclosure to define a space beneath the inner enclosure and passages for heated air flow around the walls of the inner enclosure, a screw disposed in an open-top channel at the floor of the inner enclosure to move heated material, an opening in the inner enclosure floor in communication with a passage in the outer enclosure floor for delivery of heated asphaltic material moved by the screw to the unit exterior, heating chambers projecting upwardly from the floor of the inner enclosure above the heating sources to provide regions through which hot air rises from the sources, and flues extending transversely from the upper portions of the heating chamber to the end walls of the inner enclosure for conducting the heated air from the heating chambers to the aforementioned passages.  The unit is operated to heat the initially cold material to a temperature between 275° and 300° F. and to maintain it at that temperature until it is used.
Patent CA-2027044-C (CA)
Title: Pack made of thin cardboard, especially for cigarettes
Inventor: FOCKE HEINZ
IPC: B65D5/38
Filed: 1990-10-05
Granted: 1998-10-06
Abstract: 1.     Pack  made  of  thin  cardboard, especially for cigarettes.   2.1.   In slide packs, a cigarette group (11) enwrapped  by an  inner  wrapping  (12)  is located within a box part (17) being open at the top.  This  box  part  (17)  is  slideably arranged  in  a  casing  (18)  open  on  one  side (push-out opening 29).  An  oppositely  situated  side  wall  (30)  is closed except for an actuating opening (41).   2.2.   For  mechanically  producing  such  packs, the casing (18) is  designed  such  that  in  an  intermediate  folding position  it  can  be folded down flat. In this intermediate folding position, side tabs (39, 40) for  forming  the  side wall  (30)  of  the casing (18) extend in the plane of front wall (32) and rear wall (33).
Patent CA-2032183-C (CA)
Inventor: DICKENS DAVID
IPC: H05B6/36
Filed: 1990-12-13
Granted: 2000-08-29
Abstract: A basically commercial fast heat highly efficient griddle or other heated surface has interchangeable griddle plates including magnetically permeable materials having Curie temperatures which may be the same or different to provide different cooking temperatures, the plates being heated by induction coils providing sufficient energy to heat the plates to their effective Curie temperatures in the presence of loads and of a design to maintain a uniform cooking temperature across the griddle plate to within less than an inch of the edges of the plates. The plates may be placed in an enhanced idle condition at cooking temperature by placing a cover over the plates or region of a plate not in use.      Increased efficiency is further due to an insulator blanket placed between the griddle plates and coils.
Patent CA-2047717-C (CA)
Inventor: WAGNER FRED W
IPC: C07K16/00
Filed: 1990-03-14
Granted: 2000-08-01
Abstract: L'invention concerne des anticorps monoclonaux, leurs fragments, des chaînes individuelles et des imitateurs polypeptidiques de leurs régions hypervariables immuniréagissant avec des petites fractions simples telles que des cations métalliques et des petites molécules organiques, les hybridomes permettant la production des anticorps monoclonaux, des composés immunogènes permettant de développer les hybridomes, ainsi que des procédés d'utilisation des anticorps monoclonaux.
Patent CA-2050652-C (CA)
Title: Dual programmable block texturing and complex clipping in a graphics rendering processor
Inventor: PEASLEE JOHN M
IPC: G06T15/30
Filed: 1991-09-04
Granted: 1996-06-18
Abstract: A block texturing and complex clip mask processor (42) for use in a graphics rendering cogenerator (10). The processor (42) provides two directly accessed texture patterns (T1, T2), and combinational logic (64, 72) for combining texture patterns and graphic primitive signals. The combined texture pattern signals and primitive signals provide for both textured graphic primitives and complex shaped clip mask areas. Also included are inputs (86, 88, 90, 92) for defining rectangular clip masks and logic means (64, 104) for combining the rectangularly clip masks with the texture, graphic primitive and complex clip mask signals.
Patent CA-2054609-C (CA)
Title: Device for detecting abnormal heart muscle electrical activity
Inventor: BIBLE CHRISTOPHER T
IPC: A61B5/0452
Filed: 1991-10-31
Granted: 1995-06-13
Abstract: A portable apparatus and method for monitoring heart muscle electrical activity includes a plurality of electrical contacts and a monitoring unit.   The contacts receive the electrical signals generated by the heart muscle of a patient and transmit the signals to the monitoring unit.  A reference axis is established for each signal by the monitoring unit.          Predetermined portions of each signal are then used by the monitoring unit to identify the ST segment of the signal which is then compared to the reference axis.  Whenever a series of ST segments exhibit an ST deviation from the reference axis which exceeds a predetermined threshold ST deviation,  the monitoring unit records data relating thereto which is used for diagnosis of myocardial ischemia.
Patent CA-2056397-C (CA)
Inventor: LIHME ALLAN OTTO FOG
IPC: G01N33/543
Filed: 1990-05-28
Granted: 1999-12-21
Abstract: On décrit un procédé pour la préparation de particules perméables creuses dotées d'une coquille extérieure en une matière poreuse non métallique présentant un degré élevé de rigidité mécanique, et d'une granulométrie comprise entre 1 et 5000 mum. On prévoit également un procédé pour la préparation de particules composites perméables correspondantes contenant une deuxième matière apte à produire une interaction au moins temporaire avec une ou plusieurs espèces chimiques, ainsi que les particules ainsi préparées, et leur utilisation dans divers procédés, tels que les procédés de chromotographie. On peut citer comme exemples desdits procédés les suivants: chromotographie liquide de haut rendement (HPLC), chromotographie liquide, chromotographie gazeuse, échange ionique, filtration de gel, chromotographie de coupure granulométrique ou chromotographie d'affinité; filtration d'un milieu liquide, adsoption ou absorption d'une substance présente dans un milieu liquide; catalyse d'une réaction s'effectuant dans un milieu liquide; des procédés immunochimiques tels que l'immunosorption; la synthèse à état solide, telle que la synthèse à état solide, telle que la synthèse de peptides ou de protéines à l'état solide, ou la synthèse d'oligonucléotide à état solide; des processus microbiologiques; des procédés de réacteurs d'enzymes; et le transport de cellules vivantes d'origine humaine, animale, végétale, fongique ou provenant de microorganismes.
Patent CA-2057992-C (CA)
Inventor: WILLIAMS JOHN JULIAN AUBREY
IPC: H02P6/18
Filed: 1991-12-19
Granted: 1997-08-26
Abstract: A method of controlling the commutation of power to an electric motor which does not necessitate the use of back EMF sensing or Hall effect sensors to determine rotor position. At least part of the current waveform is sensed in at least one motor winding and is used to establish information relating to the appropriate commutation pattern required to commutate power to the motor and control motor parameters e.g. motor speed.
Patent CA-2058704-C (CA)
Title: Communication system_with addressable functional modules.
Inventor: MARSH MICHAEL JOHN CAMILLE
IPC: G06F12/06
Filed: 1992-01-02
Granted: 1997-11-25
Abstract: A communication system comprises a control station and a number of remote stations connected to the control station by a multi-conductor harness. The control station houses a computer and supplies the remote stations with electrical power, as well as communicating bidirectionally with the remote stations, via the harness. At each remote station, a sensor or other functional module is plugged into an interface. Communication circuitry receives data from and sends data to the control station. The remote station includes identification means for storing a first code allocated to the remote station bythe central computer which identifies the relative location of the remote station, as well as a second code generated at the remote station which identifies the function of the sensor or other functional module.
Patent CA-2062103-C (CA)
Title: Package of stacked roofing washers and related methods
Inventor: BEACH JOHN R
IPC: B65B15/00
Filed: 1992-02-28
Granted: 1996-02-20
Abstract: In a package designed to be readily loaded into a magazine, stacked roofing washers are collated by an elongate, flexible, polymeric strap extending through central apertures of the washers.  Near each end, the strap is formed with a formation, such as an overhand knot, which is capable of supporting the washers if the package is suspended from the other end.  One such formation is capable of being deformed sufficiently to permit it to be forcibly pulled through the washer apertures.  A related method of loading such washers into a magazine and a related method of packaging such washers are disclosed.  Each such method involves the package noted above.
Patent CA-2064344-C (CA)
Title: Tape storage rack
Inventor: SHORT MICHAEL K
IPC: A47B81/06
Filed: 1992-03-23
Granted: 2002-08-13
Abstract: An article of furniture includes provisions for the storage of tapes and the like. The article can be an enter-tainment center having a storage unit at one end or both ends, or it can be a free-standing, combined storage unit. The unit includes a stationary section having a back wall with a first, rear side wall and a second, front side wall extending outwardly from side edge portions of the back wall. A plurality of shelves extend between the side walls and out-wardly from the back wall. The unit further includes a hinged, movable section having a movable back wall with a third, front side wall and a fourth side wall extending outwardly from side edge portions thereof. A plurality of additional shelves extend between the third and fourth side walls and outwardly from the movable back wall. Hinges connect an edge portion of the movable back wall and an outer edge of the rear side wall.      The front side wall has a width at least equal to the depth of both the stationary shelves and the movable shelves so that the front side wall completely overlaps the stationary shelves when the movable section is closed and the back walls are in parallel relationship. The front side wall thus forms a decorative part of the front of the article of furniture and provides support for the shelves of the movable section.
Patent CA-2065758-C (CA)
Title: Dual port oscillator for two-stage direct conversion receiver
Inventor: OHGA TADASHI
IPC: H03B5/36
Filed: 1992-04-10
Granted: 1999-07-13
Abstract: A two-stage direct conversion receiver. A first mixer (13) converts the incoming signal to an intermediate frequency (IF) signal. A second mixer (16) converts the IF signal to a baseband signal. A detector (17), receiver logic circuit (18), and alerting device circuit (19) act upon the baseband output signal. A two port oscillator (14) provides a fundamental frequency output (FO) and a tripled output frequency (3 FO). The tripled output frequency is again tripled (9 FO) by a frequency multiplier (15) and is provided as a mixing signal to the first mixer ( 13). The fundamental frequency output is provided to a phase locked loop (20, 21, 22). The output frequency (FV) of the phase locked loop is doubled (2 FV) by a frequency multiplier (23) and provided to a phase shift circuit (24). The output of the phase shift circuit (24) is provided as the second mixing signal to the second mixer (16). The phase locked loop comprises a phase locked loop controller (20), a phase locked loop filter (21), and a voltage controlled oscillator (22). The main oscillator (14) is configured as a crystal controlled Colpitts oscillator, which has an emitter resonant circuit selected to produce oscillation at the fundamental frequency, and a collector resonant circuit selected to extract the third harmonic of the fundamental oscillation frequency. A single active device can therefore provide both the fundamental frequency and the third harmonic frequency. Calibration of the receiver is effected by simply tuning the oscillator (14) to produce a baseband output signal at the output of the second mixer (16). Single step calibration is therefore effected because the voltage controlled oscillator (22) is locked to the main oscillator (14).
Patent CA-2068699-C (CA)
Title: Low noise pneumatic tire tread and method for producing same
Inventor: CUSIMANO FRED J II
IPC: B60C11/04
Filed: 1992-05-14
Granted: 2004-08-17
Abstract: A low noise pneumatic tire tread and method for producing same characterized by the minimization of the total amount of acoustic energy produced by a tire's tread as it rolls over a road surface by the strategic placement of grooves in a tread design such that.the amount of groove void across at least one of the trailing and leading edges of the tread's footprint is substantially uniform about the circumference of the tire.
Patent CA-2069422-C (CA)
Title: A starch-derived, food-grade, insoluble bulking agent
Inventor: IYENGAR RADHA
IPC: A23L33/20
Filed: 1990-11-21
Granted: 2002-04-23
Abstract: A method for preparing a food grade, insoluble bulking agent from starch is disclosed. The method involves a retrograda-tion process followed by enzymatic hydrolysis to form a modified starch product which can be used as a filler or as a bulking or texturizing agent in low-fat food formulations.
Patent CA-2071560-C (CA)
Title: Continuous-wave radar set, additionally usable as a transmitter for information transmission
Inventor: NEININGER GUENTER
IPC: G01S13/84
Filed: 1992-06-18
Granted: 1996-04-16
Abstract: A continuous-wave radar set is disclosed which is addi-tionally usable as a transmitter for transmitting messages, e.g., voice, data, or control information.  Be-sides a first modulator (SM) which produces a sawtooth or triangular frequency modulation of the radar RF sig-nal, there is an additional modulator (ZM) which modu-lates the radar RF signal with a useful signal during the flyback, i.e., in a phase in which the signal is not used for radar purposes.  To achieve exact syn-chronization between the two modulators, both modulators are controlled by the same clock generator (T).
Patent CA-2072476-C (CA)
Title: Catalysts components for polymerization of olefins
Inventor: TAJIMA YOSHIO
IPC: C08F4/60
Filed: 1992-06-26
Granted: 2002-09-03
Abstract: A catalyst component is disclosed for use in the homo-or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula Me1(OR1)pR2qX1 4-p-q, a second compound of the formula Me2(OR3)mR4nX2z-m-n and a third compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing controlled molecular weight, wide distribution thereof and other desirable qualities in the polymer product.
Patent CA-2072752-C (CA)
Title: Supported ionic metallocene catalysts for olefin polymerization
Inventor: HLATKY GREGORY GEORGE
IPC: C08F4/76
Filed: 1990-12-27
Granted: 2000-02-08
Abstract: A supported catalyst for olefin polymerisation comprising a Group IV-B  metallocene component and an ionic activator component comprising a ration capable of donating a proton and a labile bulky anion having a plurality of lipophilic radicals so that the anion is sterically hindered from covalently bonding with a ration produced from the Group IV-B metal of the metallocene.
Patent CA-2076732-C (CA)
Title: Modified polysaccharides having improved absorbent properties and process for the preparation thereof
Inventor: QIN JIAN
IPC: C08B37/08
Filed: 1992-08-24
Granted: 2006-05-09
Abstract: Disclosed is a method for producing a water-swellable, generally water-insoluble modified polysaccharide having improved absorption properties. The method involves forming a mixture of a modified polysaccharide, water, and a crosslinking agent, recovering the modified polysaccharide from the mixture and heat-treating said recovered modified polysaccharide. Also described is a modified polysaccharide having crosslinks formed by esterification and amidation.
Patent CA-2078965-C (CA)
Title: Pour spout
Inventor: RUPPEL PAUL R
IPC: B65D25/42
Filed: 1992-09-23
Granted: 1997-12-30
Abstract: A pour spout for pouring a fluid, such as fuel, by gravity from a container to a tank.  The spout includes a conduit having one end connected to the fuel container and having a second end to be positioned within the neck of the tank.  A sleeve is mounted for sliding movement within the conduit and the outer end of the sleeve carries a closure which closes off the discharge end of the conduit.  A vent tube is disposed within the conduit and has an inlet end which is adapted to communicate with the fuel tank when the closure is in the open position.  A check valve is mounted within the vent tube and permits the flow of fuel vapor and air from the tank through the tube to the container, but prevents flow of fuel in the opposite direction.  An annular collar is mounted on the conduit and with the collar engaged with the neck of the fuel tank, a downward force applied through the container on the sleeve will open the closure to admit fuel through the conduit to the tank.  The collar is adjustably mounted along the length of the fluid conduit to accommodate tank necks of different configurations.  The closure carries a rotatable tab which encloses the inlet of the vent tube when the closure is in the closed position to prevent foreign material from entering the vent tube, but permits limited vapor and air flow to eliminate a buildup of pressure or vacuum in the fuel container.  By rotating the tab, the tab can be brought into sealing engagement with the inlet of the vent tube to prevent vapor or liquid flow therethrough.
Patent CA-2080606-C (CA)
Title: Index-feed machining system
Inventor: FUTAMURA SHOJI
IPC: B21D43/05
Filed: 1992-10-15
Granted: 1999-12-21
Abstract: An index-feed machining system having such a construction that a plurality of machining units on which a cassette incorporating a plurality of machining means is detachably mounted are disposed at intervals of mp (m being a given positive integer, p being a workpiece-feeding pitch) in the workpiece-feeding direction corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the workpiece-feeding pitches, in which drive means for driving the machining means are provided in the cassette comprising a plurality of machining units, and the driving force of the driving means of a particular machining unit is made larger than the driving force of the driving means of other machining units.
Patent CA-2083274-C (CA)
Title: The pharmacological use of certain cystine derivatives
Inventor: ANDERSSON CARL-MAGNUS ALEXANDE
IPC: A61P35/00
Filed: 1991-06-03
Granted: 2002-05-28
Abstract: A method for the treatment of diseases due to defects in the immune system using certain cystine derivatives and a pharma-ceutical preparation comprising these derivatives.
Patent CA-2086753-C (CA)
Title: Apparatus for controlled delivery of liquids
Inventor: HJERTMAN BIRGER
IPC: A61M5/145
Filed: 1991-07-25
Granted: 2002-05-07
Abstract: An apparatus for controlled delivery of a liquid consists of a delivery unit which comprises a liquid container (3) having at least one movable wall (12) and a liquid outlet which is provided with a flow restriction, and a power unit which comprises a second con-tainer (21) which also has at least one movable wall (29) and wherein a vacuum may be established, and a mechanical coupling (31) between the movable wall (12) of the liquid container (3) and the movable wall (29) of the second container (21). The delivery unit and the power unit are connected together coaxially when the apparatus is prepared for delivery, and in this connecting together, the movable wall (29) of the second container is displaced by means of the mechanical coupling (31) such that the vacuum is established. The ambient atmospheric pressure then acts against this vacuum, and this pressure is transmitted by said mechanical coupling (31), which is directly acting on the movable wall (12) of the liqud container (3) such that the liquid is forced out through the outlet (4) and the restriction therein.
Patent CA-2087788-C (CA)
Title: Surgical cassette
Inventor: ETHERINGTON ROGER
IPC: A61M39/00
Filed: 1993-01-21
Granted: 1998-05-05
Abstract: A cassette (500) for use in combination with a surgical handpiece (10) and a control console (501) for controlling irrigation and/or aspiration fluid flows in the handpiece (10) having a housing (502) with an external surface and an interface (504) adapted to be held in operative association with the control console (501), an inlet coupling (506), a pump tube (518) having an inlet (512) and a discharge line (522) in fluid communication with a waste container (118) and a fluid flow passage (514) in fluid communication with the inlet coupling (506) and the pump inlet (512) consisting of an open channel formed in the external surface and a gasket (136) adhered to the external surface to seal the channel fluid-tight.