baber/WOPTO huggingface dataset:
Patent CA-2033274-C (CA)
Title: Opaque oriented polymeric film structure and method of preparing same
Inventor: SWAN LARRY GENE
IPC: C08J9/00
Filed: 1990-12-27
Granted: 1999-08-17
Abstract: 1. An opaque, biaxially oriented polymeric film structure comprising: (a) a core layer, having a first surface and a second surface, comprising a thermoplastic polymeric matrix within which is located a stratum of voids; a substantial number of the voids containing at least one spherical, void-initiating particle which is phase distinct and incompatible with matrix material, the population of voids in the core being such as to cause a significant degree of opacity; and (b) at least one skin layer, adhering to at least the first surface of the core layer, comprising a thermoplastic polymeric matrix within which is located a stratum of voids, a substantial number of said voids containing at least one void-initiating solid particle which is phase distinct and incompatible with the matrix material.
Patent CA-2037668-C (CA)
Inventor: SHERMAN JAMES D
IPC: G01M7/02
Filed: 1991-03-06
Granted: 1996-01-30
Abstract: A waveform tracking clipper circuit for limiting the instantaneous amplitude of a processed vibration test signal at the input to a shaker amplifier (5) to the instantaneous amplitude of an unprocessed vibration test signal, the unprocessed vibration test signal having been    processed to develop the processed vibration test signal.   Included is clamper circuitry (17 and 19) connected to the input of the amplifier (5). Numerous variations are disclosed, including the use of precision  rectifiers  and  a variety  of  redundancy configurations to    guard against the potentially-devastating consequences of a component failure or control misadjustment.
Patent CA-2046838-C (CA)
Title: Spinal column retaining method and apparatus
Inventor: STRIPPGEN WALTER E
IPC: A61B17/58
Filed: 1991-07-11
Granted: 1998-01-06
Abstract: A method and apparatus is provided to retain elements of the spine and/or pelvis in a desired spatial relationship.  A plurality of fasteners are connected with a plurality of the elements.  A longitudinal member is connected with the fasteners by a plurality of connector members.  The longitudinal member and fasteners are movable relative to each other to adjust the distance between the longitudinal member and fasteners to thereby obtain the desired spatial relationship between the longitudinal member and elements to which the fasteners are connected.  Once the longitudinal member and fasteners have been positioned in the desired spatial relationship, clamps are engaged to hold the longitudinal member, fasteners and connector members against relative movement.          To provide for the adjustability of the longitudinal member relative to the fasteners, oblong openings are formed in the connector members.  In one specific method of adjusting the position of the longitudinal member relative to the fasteners, the longitudinal member is rotated about an axis which extends through a portion of the longitudinal member.
Patent CA-2049411-C (CA)
Title: An improved lin flue gas sox/nox removal process and its by-product utilization
Inventor: LIN PING-WHA
IPC: B01D53/60
Filed: 1991-08-16
Granted: 2001-05-29
Abstract: An improved process for effecting the efficient desulfurization of gases containing sulfur oxides, comprising the steps of: transmitting flue gas containing sulfur oxides gases through ductwork means, subjecting the flue gas to one of increasing the temperature of the flue gas through gaseous interaction and subjecting the flue gas to thermal radiator means, in order to effect a rapid and positive time rate of temperature change so that sulfur dioxide in said flue gas is converted to sulfur trioxide, passing the sulfur trioxide rich flue gas to a reactor and providing a calcium containing reactant to the reactor, and continuously emitting a desulfurized exit gas from the reactor and transmitting the desulfurized exit gas to an exit, The process is a completely dry process which provides advantages over known processes including improved sulfur oxide removal in a exothermic reaction.
Patent CA-2054080-C (CA)
Title: Drill pipes for rotary-vibratory drills
Inventor: ROUSSY RAYMOND J
IPC: E21B17/04
Filed: 1991-10-23
Granted: 1997-09-30
Abstract: A drill pipe for combination rotary - vibratory drills, The pipe  includes  an  elongated  pipe  member  and  a  connector  for connecting the drill pipe to another drill pipe.   The connector includes a threaded member at one end of the pipe member.   The connector and pipe member have overlapping portions.  The portion of  one  of  the  members  has  a  plurality of circumferentially spaced-apart slots which are generally aligned axially with the pipe member, and welds along the slots securing the pipe member and connection member together.
Patent CA-2061365-C (CA)
Title: Cable having lightning protective sheath system
Inventor: PATEL PARBHUBHAI DAHYABHAI
IPC: H01B11/22
Filed: 1992-02-17
Granted: 1998-04-07
Abstract: A communications cable for use in buried environments in an outside plant includes a core comprising at least one transmission medium and a mechanically strengthened, thermal resistant barrier layer disposed about a plastic tubular member. A metallic shield and a plastic jacket are disposed about the barrier. The barrier layer may comprise a tape which is made of a material such as woven glass or an aramid fibrous material, for example, which is resistant to relatively high temperatures, which has suitable strength properties in all directions and at elevated temperatures and which is characterized by properties which cause the barrier layer to impede the passage therethrough of particles which are sufficiently large to cause damage to the core. In a preferred embodiment, the thermal barrier layer also includes provisions for preventing the longitudinal flow of water within the cable. Such a waterblocking capability may be provided by a barrier layer comprising a laminate comprising a high temperature resistant tapeand at least one other tape with a superabsorbent powder therebetween or anothertape which has been impregnated with a superabsorbent material.
Patent CA-2064805-C (CA)
Title: Method and apparatus for controlling dynamic convergence of a plurality of electron beams of a color cathode ray tube
Inventor: CHEN HSING-YAO
IPC: H01J29/50
Filed: 1990-08-10
Granted: 2002-03-19
Abstract: For use particularly in a color cathode ray tube electron gun, means for diverting an electron beam from a straight line path. The beam diverting means has general utility, but is disclosed as part of a quadrupole lens for correcting astigmatism introduced by an associated self-converging yoke. The beam bending feature in the dynamic quadrupole compensates for convergence error undesirably introduced by the dynamic focus voltage.
Patent CA-2065777-C (CA)
Title: Thrust ring for pipe joints
Inventor: YAMAJI MICHIO
IPC: F16L47/04
Filed: 1992-04-10
Granted: 1997-11-18
Abstract: A pipe joint thrust ring to be interposed between a joint member of a pipe joint and a connecting threaded member rotatably fitted to the joint member.          The thrust ring comprises a C-shaped body in the form of a circle partly cut away and having spring elasticity.          The inner width between opposed ends of the C-shaped body is maller than the outside diameter of the joint member and can be increased to a value equal to the outside diameter of the joint member.
Patent CA-2066752-C (CA)
Title: Sanitation system
Inventor: HUMPHREY FRANK
IPC: C02F3/12
Filed: 1991-04-11
Granted: 1999-11-02
Abstract: A sanitation system for treating a black water stream and a grey water stream. The black water stream is inputted into a black water digester wherein the black water stream is aerobically digested to produce a treated black water stream and the treated black water stream is discharged from the black water digester. The treated black water stream is inputted into a black and grey water digester and the grey water stream also is inputted into the black and grey water digester and the grey water stream also is inputted into the black and grey water digester. The treated black water stream and the grey water stream are aerobically digested in the black and grey water digester to produce a treated bleak and grey water stream and the treated black and grey water stream is outputted from the black and grey water digester.
Patent CA-2067434-C (CA)
Title: Automated pizza oven
Inventor: DEPASQUALE GEORGE B
IPC: A21B1/40
Filed: 1992-04-28
Granted: 2000-03-28
Abstract: An automated pizza oven comprising a massive oven enclosure with a fire brick liner about a baking chamber and a massive fire brick turntable disposed in the baking chamber and forming the bottom surface thereof. A variable speed drive motor is connected with and slowly rotates the turntable.  A pair of doors are provided for the baking chamber and a fire chamber employs coal or other natural fuel in open communication with the baking chamber. A pair of temperature sensors and a drive motor speed sensor respond respectively to baking chamber temperature and turntable speed and are fed to a control means for the regulation of turntable speed as a function of baking chamber temperature.
Patent CA-2068293-C (CA)
Title: Open top plastic drum with plastic cover
Inventor: ADDISON ROBERT A
IPC: B65D45/34
Filed: 1992-05-08
Granted: 1996-10-22
Abstract: A plastic drum assembly includes a plastic body with an open top, terminated in a neck having two annular flexing zones, a plastic cover, and a ring for securing the cover to the body. The cover may also have flexing regions corresponding to the flexing regions on the neck. The flexing regions cooperate to permit the neck and the cover to flex in a hinging action in presence of an impact on the body to ensure that the cover is not separated, thereby preventing spillage.
Patent CA-2070082-C (CA)
Inventor: ROUFFET DENIS
IPC: H04W36/36
Filed: 1992-05-29
Granted: 1998-05-12
Abstract: Le système de communications par satellites en orbite basse est à destination de terminaux mobiles. Le système antenne de communication de chaque satellite assure une couverture isoflux composée de plusieurs pinceaux elliptiques allongés dans le sens de défilement du satellite. La présente invention peut être appliquée notamment au domaine des télécommunications spatiales.
Patent CA-2071691-C (CA)
Title: Combustion control method of refuse incinerator
Inventor: ORITA NORIHIKO
IPC: F23N5/18
Filed: 1992-06-19
Granted: 1995-12-26
Abstract: The present invention aims for the object thereof at preventing unburnt gas and noxious gas components from being generated in a refuse incinerator, and provides a combustion control method by which it is arranged so that a feeder 2 and a stoker 3 are not only controlled so as to keep evaporation S1 of the boiler at a target value thereby to achieve stabilized combustion extending over  a long period of time, but also feed water quantity S2 and the like from a boiler water pipe panel section 2 forming a combustion chamber 6 are detected, and the rate of overfire air quantity to main combustion air quantity to a lower part of the stoker is controlled at a constant total gas capacity so that the fluctuation width of the feed water quantity S2 falls within a set range.
Patent CA-2072446-C (CA)
Title: Nickel-base heat-resistant alloy
Inventor: KAWAI HISATAKA
IPC: C22C19/05
Filed: 1992-06-26
Granted: 1997-01-21
Abstract: The improved nickel-base heat-resistant alloy consists of 13.1 - 15.0% Cr (all percentages that follows are by weight), 8.5 - 10.5% Co, 1.0 - 3.5% Mo, 3.5 - 4.5% W, 3.0 - 5.5% Ta, 3.5 - 4.5% A?, 2.2 - 3.2% Ti, 0.06 - 0.12% C, 0.005 - 0.025% B, 0.010 - 0.05% Zr and 1 - 100 ppm of Mg and/or Ca, in the optional presence of 0 - 1.5% Hf and/or 0 - 0.5% of at least one element of Pt, Rh and Re, with the remainder being Ni and incidental impurities.  The alloy has high strength and high resistance to oxidation and corrosion at elevated temperatures and, hence, is suitable for use as a constituent material for machine parts that are to be exposed to elevated temperatures.
Patent CA-2093322-C (CA)
Title: Epoxy resins based on diaminobisimide compounds
Inventor: HODGKIN JONATHAN H
IPC: C07D487/04
Filed: 1991-10-03
Granted: 2002-01-29
Abstract: A method for the preparation of a diaminobisimide compound of formula (I) substantially free of oligomers, wherein Ar1 is an optionally substituted aromatic residue which provides for good conjugation between the nitrogen containing groups; and Ar is an optionally substituted aromatic residue characterized in that at least two molar proportions of an aromatic dia-mine of the formula (II): H2N-Ar1=NH2 wherein Ar1 is as defined above, are heated with one molar proportion of an aro-matic tetracarboxylic acid of the formula (III): (HOOC)2Ar(COOOH)2, or the corresponding dianhydride, wherein Ar is as defined above, optionally in the presence of a polar solvent and optionally including 0.1 to 2 molar proportions of a tertiary amine. The compounds of formula (I) are useful curing agents in epoxy resin formulations.
Patent CA-2094569-C (CA)
Inventor: VADERS DENNIS H
IPC: F16B2/12
Filed: 1993-04-21
Granted: 1998-07-14
Abstract: An apparatus for clamping first and second separable components comprising a support member having an inclined surface fixed to the first component, a mounting stud fixed to the support member and extending therefrom, and a clamping member slidably mounted on the stud and movable between a clamping position and a detached position is provided.  The clamping member is adapted to frictionally engage both the second component and the inclined surface of the support member when in a clamping position and to retain the first component adjacent to the second component during thermal expansion of the second component.
Patent CA-2098539-C (CA)
Inventor: TAKAHASHI MAMORU
IPC: C08L23/00
Filed: 1993-06-16
Granted: 2001-07-24
Abstract: An ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer [A-1] which has a density, a melt flow rate (MFR), an amount of a n-decane-soluble portion in the specific ranges and whose melt tension (MT) at 190 °C and MFR satisfy the relation MT>2.2xMFR-D.84, and one (co)polymer selected from the group consisting of [B-1] a low-density polyethylene obtained by high-pressure radical polymerization, [B-2] a crystalline polyolefin and [B-3] an olefin type elastomer. Also disclosed is an ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer composition and the low-density polyethylene [B-1] obtained by high-pressure radical polymerization, said ethylene/.alpha.-olefin copolymer composition comprising ethylene/.alpha.-olefin copolymers [A-2] and [A-3] both having physical properties similar to those of the above ethylene/.alpha.-olefin copolymer [A-1] and having intrinsic viscosities different from each other. Further disclosed is an ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer [A-4] which has a density, a melt flow rate (MFR), a weight of a n-decane-soluble portion in the specific ranges and whose melt tension (MT) at 190 °C and MFR satisfy the relation MT<-2.2xMFR-0.84, and one (co)polymer selected from the above group consisting of [B-1], [B-2] and [B-3]. Still further disclosed is an ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer composition and a low--density polyethylene [B-4] obtained by high-pressure radical polymerization, said ethylene/.alpha.-olefin copolymer composition comprising ethylene/.alpha.-olefin copolymers (A-5] and [A-6] both having physical properties similar to those of the above ethylene/.alpha.-olefin copolymer [A-4] and having intrinsic viscosities different from each other. The ethylene copolymer compositions of the invention are excellent in heat stability and moldability, and able to form films of high transparency, high mechanical strength and anti-blocking resistance.
Patent CA-2099790-C (CA)
Inventor: TACHIKAWA MAMORU
IPC: C07F7/18
Filed: 1993-07-05
Granted: 1999-05-04
Abstract: The present invention unexpectedly introduces 1-aza-2-silacyclobutane compounds whose nitrogen is substituted by a hydrocarbon group or heteroatom-containing hydrocarbon group, whose N-Si bond remains highly reactive, and which are very effective as silanol endblocking agents and silane coupling agents. The present invention also introduces a method for the preparation of these l-aza-2-silacyclobutanes by the intramolecular hydrosilylation reaction of N,N-disubstituted aminosilane.
Patent CA-2099926-C (CA)
Title: Cylindrical combustion chamber housing of a gas turbine
Inventor: ZIMMERMANN ACHIM
IPC: F23R3/54
Filed: 1993-07-06
Granted: 2001-02-20
Abstract: A cylindrical combustion chamber housing of a gas turbine, in which the compressor air is fed into the lower, conical part of the combustion chamber housing, the perforated cone (5), through a lateral, arc-shaped inlet elbow (2). The inlet elbow (2) is directly joined by the intake distribution element (1), in which the compressor air is led around the perforated cone (5) on both sides.  The tangential flow is converted around a cone into an axial flow through the holes (7) in the perforated cone (5). The conversion of the direction of flow of the compressor air is supported by radially arranged ribs (3). As a result, optimal cooling of the entire injector tube (6) is achieved, while the pressure drop in the air feed area (1, 2 and 5) is minimized, and the efficiency of the gas turbine is increased at the same time.
Patent CA-2101345-C (CA)
Title: Cigarette
Inventor: TAKEDA KAZUKO
IPC: D21H27/00
Filed: 1993-07-27
Granted: 1996-11-12
Abstract: A vented filter cigarette comprising:  a  filter having a fiber filter material and a permeable plug wrap paper wrapping the fiber filter material, the plug wrap paper having a Coresta permeability of 1000  or more; a tobacco rod; and tipping paper having a plurality of pores and connecting the filter and the tobacco rod.  The permeable plug wrap paper has a ventilation area which face the pores and through which dilution air from the pores passes.   An embossment having grooves of a grid-pattern is formed on the plug wrap paper at least in the ventilation area and not to reach either end of the plug wrap paper, in order to loosen tightness between the tipping paper and the plug wrap paper in the ventilation area to control filter ventilation of the cigarette and to reduce variation in the filter ventilation.
Patent CA-2104818-C (CA)
Title: Insulating units
Inventor: EVASON JOHN
IPC: E06B3/66
Filed: 1993-08-25
Granted: 2003-10-14
Abstract: A sealed insulating unit comprising two parallel opposed panes with a spacing and sealing system therebetween defining, with said panes, a sealed gas spaced between them, said spacing and sealing system comprising a spacer frame with a primary seal between each side of the spacer frame and the opposing pane face and a secondary seal extending between the panes outside the outer peripheral face of the spacer frame characterised in that each primary seal is greater than 0.4 mm thick on construction of the unit and comprises at least 7 grams of sealant material on each side of the spacer frame per metre of the spacer frame length.      There is also provided a method of producing a sealed insulating unit comprising providing a spacer frame of required size, applying primary sealant to each side face of the spacer frame, assembling the spacer frame with and between two opposed parallel panes so that the spacer frame with the panes defines a gas space therebetween, and, with a primary seal thickness of greater than 0.4 mm on each side of the spacer frame, applying a secondary sealant into a channel between the panes outside the outer peripheral face of the spacer frame and curing said secondary sealant in situ between the panes. There is further provided a spacer for a sealed insulating unit in which in the side walls of the spacer are defined elongate recesses, the dimensions of the recesses being selected such that sufficient primary sealant can be accomodated therein to provide in the sealed insulating unit opposed primary seals each at least 0.4 mm thick.
Patent CA-2105128-C (CA)
Title: Method of bonding an adhesive to foam
Inventor: FELL JOSEPH P
IPC: A61F13/15
Filed: 1993-08-30
Granted: 2003-02-25
Abstract: A method is provided for bonding an adhesive to a polyolefin foam, and preferably a non-crosslinked polyethylene foam. The foam is useful as a liquid-impervious backing in a disposable absorbent article, such as a panty liner, a sanitary napkin, a diaper, a adult incontinent garment, a training pant, and the like. The adhesive is applied to a substrate which is then brought into intimate contact with one side of the foam's surface. Optionally, heat and pressure may be applied to enhance bonding.
Patent CA-2105344-C (CA)
Inventor: SUDALL STEPHEN J
IPC: D21H27/00
Filed: 1993-09-01
Granted: 2005-01-11
Abstract: Uncreped throughdried basesheets can be made with the caliper of the basesheet being independent of the basis weight of the basesheet.      Multi-ply wipers and towels produced by plying together two or more of such basesheets having a relatively low basis weight can provide products with improved caliper and absorbency for a given strength level and the amount of fiber used.
Patent CA-2107003-C (CA)
Inventor: BIAGIOTTI GUGLIELMO
IPC: B65G21/20
Filed: 1993-09-27
Granted: 1997-04-08
Abstract: An apparatus  is provided  for the  removal of  "trims"  and other waste  from small rolls of toilet paper, all-purpose wipers and  other   articles,  with   arrangement  for   thrust-operated advancement of  rows of  said small  rolls (R).   It  includes at least a continuous belt element 12, with a suction box 30 able to hold the  small rolls  (R) in  suspension and  to move the latter forward, while  excluding the  "trims" (RF)  or other scraps from this action.   The  continuous  belt  element  12  has  uniformly distributed apertures (22)  and,  in  its  lower  active  travel portion, moves  at a  speed at least equal to the average feeding speed of  the small  rolls.  It slides beneath the suction box 30 which exerts  a pneumatic  aspirating and retaining action on the row of  advancing small  rolls.    The  continuous  belt  12  has portions without  apertures which,  during its  motion  which  is synchronized with  that of  the small rolls being pushed forward, corresponds to  the space between the end of a row of small rolls formed from  a log  and the  beginning of the row formed from the subsequent log.
Patent CA-2107872-C (CA)
Inventor: KENNEDY JOHN E
IPC: G02B23/26
Filed: 1993-10-06
Granted: 1999-07-20
Abstract: An endoscope (10) includes a focusing mechanism (17) having a focus control element (80) at a proximal end (19) of the endoscope and a mechanical coupling connecting the focus control element (80) to an image transmitting device (e.g., an electro-optical sensor (24) or one or more optical fibres (26)) mounted at a distal end (14) of an elongated insertion section (12) of the endoscope (10). Rotation of the focus control element (80) moves the image transmitting device (24) with respect to a lens assembly (22) of the endoscope (10) to focus the image received by the lens assembly (22).