baber/WOPTO huggingface dataset:
Patent CA-2153388-C (CA)
Title: Refrigeration working fluid compositions containing difluoroethane or pentafluoroethane
Inventor: KREVALIS MARTIN ANTHONY
IPC: C10M105/38
Filed: 1994-01-03
Granted: 2004-03-30
Abstract: Refrigeration working fluid compositions are provided herein.  Such refrigerant working fluids comprise about 5 to 55 parts by weight of a synthetic polyol ester lubricant and about 95 to 45 parts by weight of 1,1-difluoroethane refrigerant. The ester has a viscosity range of from about 8 cSt to 130 cSt at 40°C and the working fluid has a miscibility value of at least -20°C. In this context, miscibility is defined as the highest temperature at which immiscibility occurs over the composition range of about 10 to 35 parts by weight of the synthetic ester lubricant, and about 90 to 65 parts by weight of the refrigerant. The ester is prepared by reacting: (a) neopentylglycol or trimethylol propane with an acid mixture of branched and linear C7 to C10 alkyl monocarboxylic acids, that acid mixture having a maximum average effective carbon chain length equal to 8.0; or (b) technical grade pentaerythritol with an acid mixture of branched and linear C7 to C10 alkyl monocarboxylic acids, that acid mixture having an average effective carbon chain length of less than 8.0, provided further that when mixtures of linear and branched acids are used with the pentaerythritol, the mixture contains at least 25 wt.% branched acids.
Patent CA-2163038-C (CA)
Title: A flail cutter and method for providing a flail cutter for a brush cutter machine
Inventor: DALLMAN JIMMIE J
IPC: A01D34/86
Filed: 1995-11-16
Granted: 2005-09-20
Abstract: In the first preferred embodiment a flail cutter for a brush cutting machine comprises generally a shaft having a plurality of holes therethrough and a locking sheath also with a plurality of holes therethrough. The holes in the shaft and the holes in the locking sheath each receive a hanger, each hanger in turn holding a ring. Each ring holds a pair of flail blades. All blades are thus quickly attached to or removed from the shaft. After all blades have been attached to the shaft, the locking sheath is slid in one horizontal direction over the shaft to thereby lock the blades in attached engagement to the shaft. To remove all the blades, the locking sheath is slid in the opposite horizontal direction to release the blades from the shaft.      In the second preferred embodiment, the hangers are attached directly to the shaft and the locking sheath is eliminated.      Each hanger still holds the ring and the ring holds a pair of flail blades. The flail cutter is powered by a chain drive system. A method of providing a flail cutter for a brush cutting machine is also disclosed.
Patent CA-2166587-C (CA)
Title: Adjustable width panel assembly
Inventor: PARTH LEOPOLD
IPC: E04C2/20
Filed: 1996-01-04
Granted: 2000-02-22
Abstract: An adjustable-width panel assembly for the construction of fences, walls and other structures incorporating panels, which minimizes the need for separate fasteners to interconnect successive panel members.
Patent CA-2175779-C (CA)
Inventor: CAROSELI DAN
IPC: H01M50/571
Filed: 1996-05-03
Granted: 2001-08-07
Abstract: A thin, flexible rectangular sheet of copper for attracting corrosion from ambient corrosive atmosphere is disclosed.  One side of the copper sheet is covered by an adhesive that, in turn, is overlaid by a peel off protective strip to be removed when it is desired to affix the unit to a battery casing.  In an alternative embodiment, the shorter edges of the rectangular sheet have cutout areas to incorporate the terminals, thus exposing more surface area of the device to the corrosive atmosphere.
Patent CA-2176227-C (CA)
Title: Sels quaternaires d'imine utilises comme catalyseurs de blanchiment
Inventor: MADISON STEPHEN ALAN
IPC: C11D3/26
Filed: 1994-11-03
Granted: 2006-08-15
Abstract: L'invention se rapporte à de nouveaux catalyseurs de blanchiment, à un procédé de blanchiment de substrats à l'aide de ces catalyseurs et à des compositions détergentes contenant ces catalyseurs. Ces agents de blanchiment sont des sels quaternaires d'imine. Des substrats, tels que des tissus, peuvent être blanchis dans une solution aqueuse contenant ces sels et un composé peroxyde.
Patent CA-2179465-C (CA)
Inventor: FELDT DANIEL CHARLES
IPC: H03F3/20
Filed: 1996-06-19
Granted: 1999-03-16
Abstract: An output stage (418) for an operational amplifier (403) powered by a first supply voltage rail (102) and a second supply voltage rail (104) includes a buffer (100) and a current booster (500) for amplifying an input voltage (105) into a low impedance output signal (117 and 520). The buffer (100) amplifies the input voltage (105) into the amplified output signal (117 and 520) when the input voltage (105) is within a buffer voltage range (210), the buffer voltage range (210) contained within a maximum voltage range (208) defined by a voltage difference in the first supply voltage rail (102) and the second supply voltage rail (104). The current booster (500) assists the buffer (100) in amplifying the input voltage (105) into the output signal (117 and 520) when the input voltage (105) is outside of the buffer voltage range (210) but within the maximum voltage range (208).
Patent CA-2181887-C (CA)
Inventor: HAGIWARA SEIJI
IPC: H01Q19/00
Filed: 1996-03-08
Granted: 2000-05-16
Abstract: In a microstrip antenna device which has a radiating patch 11 and a ground plate disposed opposite and in parallel to each other, a metal plate 21 is provided on the ground plate in the vicinity of at least one of opposite marginal edges of the radiating patch 11 in the direction of resonance to form an additional capacitance between an open end of the radiating patch in the direction of resonance and the ground plate, thereby permitting reduction of the antenna length.
Patent CA-2184681-C (CA)
Title: Process for preparing substituted n-ethylglycine derivatives
Inventor: BREIPOHL GERHARD
IPC: C07K14/00
Filed: 1996-09-03
Granted: 2010-01-05
Abstract: Processes are described for preparing substituted N-ethylglycine derivatives of the formula (see formula I) in which PG is an amino protecting group which is labile towards weak acids and is of the urethane type or the trityl type, X is NH or O, and B' is bases which are customary in nucleotide chemistry and whose exocyclic amino and/or hydroxyl groups are protected by suitable known protecting groups, and the salts thereof. The process comprises reacting a compound of the formula (see formula II) in which R is hydrogen or, if X = NH, an acid-labile protecting group, and R1 is a protecting group which is labile towards acids and stable towards amines, and X is defined as above, with a compound of the formula (see formula III) at 0 - 45°C in a suitable solvent, using a coupling reagent which is customary in peptide chemistry, to give a compound of the formula (see formula IV) and subsequently converting this compound, by means of eliminating the acid-labile ester protecting group R1 and, for X = NH, by means of simultaneously eliminating the acid-labile protecting group R, under suitable acidic conditions, in a suitable solvent, where appropriate with the addition of cation-capturing agents, into a compound of the formula (see formula V) and converting this compound, with a suitable reagent in a suitable solvent and using an auxiliary base, into the title compound and subsequently, where appropriate, converting the latter into its salts.
Patent CA-2186732-C (CA)
Inventor: RYAN JOHN O
IPC: H04B1/06
Filed: 1995-04-05
Granted: 2007-09-04
Abstract: A system and method of information dissemination that permits the user to listen to the specific content of information when and where he or she wants to. A radio or television receiver system receives information from an FM subcarrier, a television vertical blanking interval transmission, an active picture area television transmission, a television separate audio program transmission or a dedicated radio channel and stores the transmission information in a memory. A user interface allows selection from the memory of the stored information via a set of menus controlling a hierarchical database, so as to access particular items of the information. Typically the system includes RAM and/or a magnetic storage medium such as a digital audio tape, a magneto-optical mini-disk, a magnetic disk or optical disk, sufficient to store information for several hours of audio output. A decompression device accepts the accessed compressed digital audio information items and transforms them into audible speech signals. The user interface is either a voice control or a single or multi-position switch allowing scanning through and selection from the menu items. The system is also capable of transmitting alphanumeric data and converting this alphanumeric data to an audible form using a voice synthesizer.
Patent CA-2189485-C (CA)
Title: Mattress stabilizing bedskirt assembly having detachably attachable skirt components
Inventor: HAMILTON SAMANTHA
IPC: A47C21/02
Filed: 1996-11-04
Granted: 1998-07-07
Abstract: A bedskirt assembly made up of a non-slip grip deck made from non-slip fabric with releasable fasteners. The grip deck is installed between the mattress and box springs of the bed and stabilizes the location of the mattress relative to the box springs and provides for easy attachment of segments of skirting, in one panel or several panels. The position of the panels is adjustable for height and length and to suit individual bedframes. The skirt panels can be quickly and easily removed and replaced without having to remove the mattress from the box springs.
Patent CA-2192380-C (CA)
Inventor: NEWMOYER KERRY
IPC: C08K3/00
Filed: 1996-12-06
Granted: 2002-02-12
Abstract: A communication cable includes a plurality of twisted pairs of electrical conductors, all electrical conductors being surrounded by a layer of a modified olefin based material.
Patent CA-2196950-C (CA)
Inventor: VILLA CHARLES N
IPC: G01R29/02
Filed: 1997-02-06
Granted: 1999-08-24
Abstract: A  method  and  apparatus  for  detecting  and  displaying automotive  fuel  injector voltage  signal  pulse width which includes signal detection circuits for capturing the rising and falling edges of an input signal having positive and negative voltage swings is disclosed.  Upon detecting a rising edge or a falling edge of a positive or negative voltage of the input signal, a corresponding software routine is executed to carry out the process of measuring the pulse width of a pulse of the input signal.  The measured pulse width is then displayed in numerical and/or histogramic formats.
Patent CA-2201304-C (CA)
Title: Procede de preparation de 1,3-alcanediols et de 3-hydroxyaldehydes
Inventor: WEIDER PAUL RICHARD
IPC: C07C31/20
Filed: 1995-09-28
Granted: 2007-06-26
Abstract: Procédé de préparation de 1,3-alcanediols et de 3-hydroxyaldéhydes par hydroformylation d'un oxyrane avec du monoxyde de carbone et de l'hydrogène, en présence d'un ou de plusieurs catalyseur(s) d'hydroformylation à base de métaux du groupe VIII, et en présence d'un solvant organique, procédé dans lequel on sépare le produit de l'hydroformylation par extraction à l'aide d'un liquide aqueux sous atmosphère de monoxyde de carbone. Ce procédé permet de produire du 1,3-propanediol avec des rendements et une sélectivité élevés, avec une récupération et un recyclage de pratiquement tout le catalyseur d'hydroformylation.
Patent CA-2202269-C (CA)
Title: Improved method and kit for attaching side shields to eyeglass temples
Inventor: HIRSCHMAN RICHARD
IPC: G02C13/00
Filed: 1995-09-26
Granted: 1999-06-29
Abstract: A method for mounting safety shields onto eyeglass temples and a kit for carrying out that method. A temple (14) of an eyeglass frame is placed in a channel (18) forming part of a side shield (12), thereafter, a pin (16) is inserted into an opening formed in the side shield to create a force fit between the temple, the channel and the pin which attaches the side shield to the temple. The side shield is placed in its operative position before the pin is inserted into the opening, and the force fit resulting from the insertion of the pin into the opening holds the side shield in its operative position.
Patent CA-2203164-C (CA)
Inventor: SAKAI MAKOTO
IPC: F16H7/14
Filed: 1996-08-30
Granted: 2005-04-05
Abstract: Valves 4,5 are disposed in such a portion which is defined in an end portion of a piston 30 of an adjusting cylinder body 1 and which does not contact a load giving body 7, thereby preventing deformation by compression caused in incorporation positions of the valves 4,5 and leakage of a filling within the cylinder body 1.
Patent CA-2204604-C (CA)
Title: Processes and intermediates for preparing cis(+)3-[4,-6-dihydroxychroman-3-ylmethyl]-4-methoxyaniline
Inventor: QUALLICH GEORGE J
IPC: A61P1/04
Filed: 1995-10-06
Granted: 2002-02-19
Abstract: This invention relates to a process for preparing the compound of formula (I I) which comprises treating the compound of formula (IIIA) wherein YH is (R)-CS A or L-DTTA with hydrogen in the presence of a precious metal catalyst, preferably Pd(OH)2. The compounds of formula (II) are useful in the preparation of compounds of formula (I) wherein Ar is an optionally substituted 5-8 membered heteroaryl or optionally substituted benzene fused optionally substituted heteroaryl ring wherein said heteroaryl ring comprise s 1 to 4 heteroatoms selected from nitrogen, oxygen and sulfur; which are usef ul for inhibiting the production of leukotrienes and/or blocking leukotriene receptors and in the prevention or treatment of asthma, arthritis, psoriasis , ulcers, myocardial infarction and related disease states in mammals. The invention also relates to compounds of formulae (IVA); (IVB); (IIIC); (IIIB)  and (IIID).
Patent CA-2211568-C (CA)
Inventor: HIERSTETTER THOMAS
IPC: C08G77/54
Filed: 1997-07-25
Granted: 2002-04-09
Abstract: Amino-functional organosilicon compounds contain at least one terminal amino group, and at least one internal primary or secondary amino groups bearing unsaturated hydrocarbon moieties, bonded to silicon through alkylene linkages. The organosilicon compounds are useful, for example, as components in addition crosslinking compositions and free radical crosslinking compositions, and as fabric treating agents.
Patent CA-2214910-C (CA)
Inventor: WILKENS ARTHUR L
IPC: B62D63/08
Filed: 1997-09-08
Granted: 2007-03-06
Abstract: A trailer 10 has a frame 12 with cross members (20). A bottom rail (62) is secured to the frame 12. A top rail (130) is supported by the frame. A plurality of extruded panels (70) are attached to the bottom rail 62 and the top rail (130) to form side walls (22 and 24) and a front wall (26). Each panel (70) is a hollow member with an outside wall 72, and inside wall (74), a first end wall 76 and a second end wall (78). A first outside flange (80) and a first inside flange (82) are integral with the first end wall (70). A second outside flange (90) and a second inside flange (92) are integral salth the second end wall (78). When plural panLls (70) are connected together to form a trailer wall (22, 24, or 26) first inside flanges (82) are between second inside and outside flanges (90, 92) and second inside flanges (92) are between first inside and outside flanges (80, 82). A passage (99) is formed between adjacent first and second inside flanges (82 and 92) and end walls (76 and 78). The panels (70) form smooth continuous surfaces on the inside and outside trailer walls (22, 24 and 26).
Patent CA-2215867-C (CA)
Title: System and method for driving a nematic liquid crystal
Inventor: OKITA MASAYA
IPC: G09G3/36
Filed: 1997-09-12
Granted: 2005-07-26
Abstract: A system for driving a nematic liquid crystal in a liquid crystal display device which includes a nematic liquid crystal, a plurality of common electrodes and a plurality of segment electrodes confining the nematic liquid crystal therebetween, and a pair of polarizing plates sandwiching the common electrodes and the segment electrodes confining the nematic liquid crystal, comprises means for applying a sequence of selection pulses to the common electrodes; means responsive to the selection pulses to apply to the segment electrodes a voltage corresponding to image data to be displayed; and means for applying to the segment electrodes a voltage different from the voltage corresponding to the image data in intervals where the selection pulses are not applied. The voltage applied to the segment electrodes is controlled such that the mean value of the voltage be a predetermined constant value.
Patent CA-2218472-C (CA)
Inventor: KEENAN RICHARD SR
IPC: B01F7/02
Filed: 1996-04-19
Granted: 2005-12-06
Abstract: A mixer feeder wagon (1) for mixing animal feed which comprises hay, straw, silage and the like, comprises a mixing compartment (20) and a dispensing compartment (21). A mixing rotor (30) is rotatable in the mixing compartment (20) for mixing the animal feed, and a dispensing auger (38) in the dispensing compartment (21) dispenses the mixed animal feed through a dispensing outlet (22). A plurality of first blades (55) extend radially from mixing paddles (47) of the mixing rotor (30) and co-operate with a plurality of second blades (56) which are mounted on a base (12) of the mixing compartment (20) for cutting the fibrous material of the animal feed into relatively short lengths as the mixing rotor (30) rotates.
Patent CA-2219176-C (CA)
Inventor: CHENG YEA-SHUN
IPC: B01L3/00
Filed: 1996-05-01
Granted: 2003-04-08
Abstract: L'invention concerne un dispositif amélioré d'analyse à une seule étape pour déceler la présence d'un analysat prédéterminé dans un flux d'urine. Ce dispositif comporte un boîtier extérieur creux à l'intérieur duquel se trouve le matériel d'analyse. Le boîtier définit un orifice d'admission pour l'urine, une fenêtre d'observation et au moins un orifice d'évacuation espacé par rapport à l'orifice d'admission précité. Le matériel d'analyse se présente sous la forme d'une zone en matériau adsorbant qui définit un secteur d'applications des échantillons d'urine adjacent à l'orifice d'admission et en communication fluidique avec lui, un secteur de collecte adjacent à la fenêtre d'observation et, enfin, un passage d'écoulement pour l'acheminement de l'échantillon entre le secteur d'application des échantillons d'urine et le secteur de collecte des analysats. L'orifice d'évacuation est situé de manière à évacuer hors du boîtier l'urine excédentaire du flux d'urine qui y pénètre, ce qui permet de réduire au minimum le noyage résultant de la pression hydraulique, qui affecte le matériel d'analyse disposé dans le boîtier, et donc de diminuer la fréquence des erreurs dans les résultats.
Patent CA-2221330-C (CA)
Title: Systeme et procede de coupe et d'ablation chirurgicales
Inventor: THAPLIYAL HIRA V
IPC: A61B17/00
Filed: 1996-05-30
Granted: 2000-02-15
Abstract: Sonde électrochirurgicale (10) comportant une tige (13), dont l'extrémité distale est pourvue d'un ensemble d'électrodes (12) et dont l'extrémité proximale est pourvue d'un connecteur (19) servant à brancher l'ensemble d'électrodes sur une alimentation en courant haute fréquence (28). La tige comprend une électrode de retour (55, 56) encastrée depuis son extrémité distale et enfermée dans une gaine isolante (18). Cette électrode de retour définit un passage intérieur (83) couplé électriquement à la fois à l'électrode de retour et à l'ensemble d'électrodes afin de laisser passer un liquide électroconducteur (50). Par application d'une tension haute fréquence à l'ensemble d'électrodes et à l'électrode de retour, le liquide électroconducteur produit un trajet de courant entre le site ciblé et l'électrode de retour, de manière à pouvoir couper le tissu ciblé ou à en pratiquer l'ablation. La sonde est particulièrement utile dans des milieux secs, tels que la bouche ou la cavité abdominale, étant donné que le liquide électroconducteur produit le trajet nécessaire de courant de retour entre l'électrode de retour et le site ciblé.
Patent CA-2224202-C (CA)
Inventor: SHAH MUKUND
IPC: C09K15/06
Filed: 1996-06-17
Granted: 2007-08-28
Abstract: L'invention se rapporte à un mélange surbasique de sels de carboxylates aliphatiques et aromatiques utile dans la fabrication de stabilisateurs thermiques à faible effet de brouillard pour PVC, que l'on obtient en faisant réagir de l'oxyde de zinc avec un acide gras, tel que l'acide stéerique, et en ajoutant ensuite des acides aromatiques, puis en ajoutant et en faisant réagir de l'oxyde de magnésium et/ou de l'oxyde de calcium, dans des conditions de chauffage régulées pour maintenir la fluidité tout en réduisant au minimum les réactions secondaires, et enfin en conditionnant le produit de réaction dans le but d'éliminer les éléments volatils.
Patent CA-2226048-C (CA)
Inventor: ST LOUIS ROBERT MAURICE
IPC: D06F58/26
Filed: 1997-12-30
Granted: 2002-11-05
Abstract: A ceramic heater coil support bracket, suitable for use in a clothes dryer, supports a helically wound heating coil in spaced apart relation from a support surface or wall. The bracket includes a base adapted for securement to the support surface and a pair of spaced apart arms upstanding from the base defining an open slot extending across the bracket in a transverse direction above the base. Each of the arms includes a coil support post having an arrowhead shape extending inwardly toward of the slot. Each of the posts includes inner and outer coil receiving grooves adapted to receive consecutive turns of the coil. The posts are laterally offset from each other in the transverse direction of the slot so that the posts support different consecutive turns of the coil. The posts have a relatively flat upper surface having an arrowhead shape projecting into the slot with sloping inside and outside surfaces of the arrowhead tapering outwardly and downwardly from the top surface. The arrowhead has two barbs each defining one wall of the grooves. The inner and outer receiving grooves of each of the posts are spaced apart in the direction of coil pitch a distance slightly larger than one coil pitch. The inner receiving grooves of each of the coil slots are spaced apart a distance slightly less than 1/2 the pitch of the coil. There is also disclosed an arrangement for mounting the bracket in the supporting wall in which the supporting wall includes a slot having widened and narrowed ends that co-operate with the bracket to hold the bracket in the slot.
Patent CA-2230300-C (CA)
Title: Headset
Inventor: JONES OWEN
IPC: G10K11/178
Filed: 1996-08-21
Granted: 2005-11-15
Abstract: A headset with an earpiece comprising an ear, especially a headset incorporating active unwanted noise suppression, wherein the earpiece (10) incorporates a baffle plate (14) carrying a sound drive (16) and an ear cushion (18), whereby the baffle plate also carries an upstanding projection (20), more especially in the form of a sound transparent dome, which limits the extent to which the cushion can be compressed when the earpiece is pressed inwardly against the ear from its normally fitted condition.
Patent CA-2230589-C (CA)
Inventor: TONG WEN
IPC: H04B17/00
Filed: 1998-02-25
Granted: 2004-02-10
Abstract: SIR (signal to impairment power ratio) of a received signal in a communications system is determined from DC components produced by at least two successive stages of performing a non-linear operation, e.g. squaring, the signal and separating the DC component from a non-DC component for supply to the next stage. A signal power of a desired signal component of the received signal can also be determined from the DC components. The signal power can be auto-correlated, and normalized auto- correlation results which exceed a threshold can be used to determine a Doppler bandwidth of the received signal, which can be used to adaptively adjust filters used for separating the DC components.