baber/WOPTO huggingface dataset:
Patent CA-2049186-A1 (CA)
Title: Tractor trailer articulation angle sensor calibration system and method
Inventor: BREEN MICHAEL T
IPC: B60T8/24
Filed: 1991-08-14
Abstract: ABSTRACT           A calibration method/system (300) for an articulated vehicle (10) automation system utilizing an articulation angle (AA) sensor (170, 172), such as a brake control system for preventing or arresting and minimizing trailer-swing and/or jackknife in an articulated vehicle (10), is provided.  According to the calibration method/system, if, for a predetermined time period (REF2), vehicle speed (50, 98, 100) exceeds a reference value (REF1) and the vehicle is not turning (TRC=0, dTRC/dt=0), then the articulation angle input signals may be calibrated to correspond to articulation angle equals zero (AA=0).
Patent CA-2049788-A1 (CA)
Title: Pulsating combustion device
Inventor: LAST ANTHONY J
IPC: F24H1/20
Filed: 1991-08-23
Abstract: ABSTRACT A water or fluid-cooled device consists of a plurality of exhaust tubes of uniform cross-section, similar to the tubes in a boiler.  The tubes are connected to an elongate combustion chamber into which a combustible mixture is aspirated via one or a series a non-return valves.  The fuel is initially ignited, and subsequently follows the conventional pattern for pulsating combustion.  This pulsating combustion burner can be used as an instrument for making a series of shockwaves at a frequency of oscillation between 200 and 2000 Hz, and thus can be used in the conditioning of fine dust particles by agglomerating them.  An alternate use is that of a burner for a boiler or a space heater, where suitable action is taken to silence the exhaust noise, and where the scrubbing action of the generated shockwaves inside the exhaust tubes improves the heat transfer to the surrounding medium by minimizing the laminar surface film or "stagnant layer" inside and outside the exhaust tubes.
Patent CA-2053230-A1 (CA)
Title: Potato .alpha. -amylase genes
Inventor: GAUSING KIRSTEN
IPC: C12Q1/68
Filed: 1990-04-24
Abstract: DNA fragments encoding potato .alpha.-amylase, the fragments comprising a nucleotide sequence (as shown in Fig. 1-5) or a subsequence or analogue thereof, DNA fragments encoding an anti-sense mRNA  molecule capable of hybridizing to an mRNA transcribed from a DNA fragment (as shown in Fig. 1-4), vectors capable of replicating in a host organism, e.g. a plant, in parti-cular a potato plant, the vectors carrying a DNA fragment as defined above, microorganisms harbouring plasmids carrying a DNA fragment as defined above. genetic constructs comprising a DNA fragment as defined above and the use of such constructs for the construction of a genetically modified plant, and genetically modified plants having an increased or reduced .alpha.-amylase activity compared to corresponding non-modified plants or an .alpha.-amylase activity which may be regulated, e.g. at low tempera-tures.
Patent CA-2053348-A1 (CA)
Title: Therapeutic foot exercise shoe
Inventor: SAWDON FLOYD
IPC: A63B23/04
Filed: 1991-10-11
Abstract: THERAPEUTIC FOOT EXERCISE SHOE                    ABSTRACT OF THE DISCLOSURE         An in-situ foot exercise shoe for enhancing the in-place exercise of the foot of a person, particularly the elderly and those afflicted with various abnormalities of the lower extremities which require exercise without actual walking or running.  The apparatus constructed according to the present invention comprises a shoe which enhances sliding movement in a to-and- fro path of travel.  The shoe includes a planar slide for sliding in a to-and-fro reciprocal path of travel and mechanism for coupling the slide to the underside of the foot.          The slide includes a sole having a smooth uninterrupted planar bottom surface for enhancing to-and-fro sliding movement.
Patent CA-2055172-A1 (CA)
Title: Error detection and framing in packets transmitted in a sequence of fixed-length cells
Inventor: CONDON JOSEPH H
IPC: H04L29/08
Filed: 1991-11-08
Abstract: Error Detection and Framing in Packets Transmitted in a Sequence of Fixed-length Cells Abstract A digital error check sequence for detecting errors in messages. The error check sequence has a form such that it is distinguishable from a sequence of padding bits, and can thus be employed to both mark the end of the message and determine whether there was an error in the transmission of the message. In one embodiment, the error check sequence includes a single-bit first field and a cyclic redundancy code (CRC) whose least significant bit is always 1. The value of the first field is chosen such that when it is appended to the message, the result is a CRC with a least significant bit of 1. Also disclosed are methods and apparatus for generating the error check sequence and transmission and receiving systems employing the error check sequence.
Patent CA-2057646-A1 (CA)
Title: Benzodiazepinone
Inventor: HSU MING-CHU
IPC: C07D233/54
Filed: 1991-12-13
Abstract: ABSTRACT    Novel benzodiazepinones of the formula              I     and compositions containing same for alleviation of viral infections, including HIV infections.
Patent CA-2058296-A1 (CA)
Title: Removal of hydrogen sulfide from produced fluids
Inventor: STOUT CHARLES A
IPC: C10L1/32
Filed: 1990-06-26
Abstract: Hydrogen sulfide is removed from a water-in-oil emulsion by treatment of the emulsion with sulfur dioxide to convert the hydrogen sulfide to elemental sulfur. The elemental sulfur formed is distributed between the oil phase and the aqueous phase of the emulsion.
Patent CA-2060467-A1 (CA)
Title: Inner sole structure for safety shoes
Inventor: TSENG CHUNG-SHINN
IPC: A43B13/38
Filed: 1992-01-31
Abstract: TITLE: INNER SOLE STRUCTURE FOR SAFETY SHOES                 ABSTRACT OF THE DISCLOSURE    An inner sole structure of rigid material has an outline corresponding to that of an outsole of a safety shoe and includes a front portion and a rear portion. The front portion has a substantially horseshoe-shaped supporting plate and a rear stop wall having a height greater than that of the supporting plate. After assembling, a bottom periphery of the steel toe is supported by the supporting plate, and a rear end of the steel toe abuts the rear stop wall at two sides thereof to protect the toes of users.
Patent CA-2061999-A1 (CA)
Inventor: FOLEY DENNIS
IPC: E04H1/06
Filed: 1992-02-27
Abstract: A work station particularly adapted for use in a uniform open floor plan.  The work station has a horizontal work surface having a front edge and a rear edge, a support member for supporting the horizontal work surface, a first trough located in an area beneath the horizontal work surface, and a second trough at a location displaced vertically below the first trough whereby the first and the second troughs define separate substantially horizontal passageways for the laying-in of cabling.  In a further aspect, there is provided an office furniture system comprising a plurality of like work station modules aligned along a linearly extending course, each work station module occupying substantially the same area.  Each work station module comprises a closed side along the linearly extending course, an open side opposite the closed side, a horizontal work surface, a support member connected to and supporting the horizontal work surface, a first trough parallel to the linearly extending course, a second trough at a location displaced vertically below the first trough and parallel to the linearly extending course so that the first and the second troughs define separate substantially horizontal passageways for electrical, communications, and data cables and the like.
Patent CA-2064077-A1 (CA)
Title: T cell receptor peptides as therapeutics for autoimmune and malignant disease
Inventor: VANDENBARK ARTHUR A
IPC: C12R1/91
Filed: 1990-07-19
Abstract: Peptides and pharmaceutical compositions comprising immunogenic peptides of a marker T cell receptor (TCR) character-istic of an immune-related disease, capable of preventing, suppressing, or treating the disease, are disclosed. In a preferred em-bodiment, the amino acid sequence of the peptide corresponds to at least part of a complementary determining region (CDR) or a hypervariable region of the TCR. Antibodies and/or T cells immunologically reactive to the TCR peptide capable of preventing, suppressing, or treating an immune-related disease by passive transfer are also disclosed.
Patent CA-2064367-A1 (CA)
Inventor: TAMURA TATSUYA
IPC: B60R13/07
Filed: 1992-03-27
Abstract: A  molding member includes an elongate pre-shaped main body of initially constant cross-section, with upper and side portions to continuously extend along respective edges of an automobile windshield plate. The main body covers a gap between the windshield plate and an automobile body panel, and has a reference point which is more spaced from the outer surface of the windshield plate along the side portion than along the upper portion.  A lip section of the main body can be maintaining in contact with the outer surface of the windshield plate along the upper portion with a first angle, and spaced therefrom along the side portion with a second, less steep angle.  A weir of a refined appearance, with desired cross-sectional area or height is defined along the side portion, between the windshield plate and the lip section, and prevent water on the windshield plate from flowing across the molding member.
Patent CA-2071561-A1 (CA)
Inventor: BLANDIN YANNICK
IPC: B05C11/00
Filed: 1992-06-18
Abstract: BREVET D'INVENTION PROCEDE ET DISPOSITIF DE FORMATION DE FIBRES Déposant : ISOVER SAINT-GOBAIN L'invention concerne les techniques de formation de fibres de verre ou d'autres matériaux thermoplastiques par centrifugation interne associée à un étirage gazeux à haute température. Le matériau à fibrer est déversé à l'intérieur d'un centrifugeur dont la bande périphérique est percée d'un très grand nombre d'orifices d'où le matériau est projeté sous la forme de filaments étirés en fibres et entraînés par un courant gazeux à température et vitesse élevées dirigé le long de la périphérie du centrifugeur, transversalement au sens de projection des fibres et canalisé par une nappe gazeuse froide l'enveloppant qui, selon l'invention, est formée, sur toute la hauteur percée de la bande périphérique de jets individualisés divergents qui se rejoignent peu après la rangée d'orifices la plus basse de la bande périphérique. Figure 2b
Patent CA-2073656-A1 (CA)
Title: Method for fire extinguishing
Inventor: BARATOV ANATOLY N
IPC: C09K3/30
Filed: 1992-07-10
Abstract: ABSTRACT        A method for fire extinguishing comprises supply into the combustion zone of a medium which engagement with flame causes localization and suppression of the latter. The medium is represented by a highly dispersive aerosol created by burning a synthetic solid fuel with oxygen content.  Accomplishment of the fire extinguishing method affords fire extinguishing, confining of fire spreading of burning power lines, equipment and premises at oil and gas wells, fuel and gas tanks and other storage, including fire-fighting in storehouses for solid combustibles with low oxygen content, e.g. celluloid.
Patent CA-2076684-A1 (CA)
Title: Roller assembly
Inventor: LAURITZEN GEORG
IPC: F16H1/24
Filed: 1991-03-06
Abstract: Abstract In a roller device, preferably having crimper rollers for agricultural machinery, where one of the rollers is movable with respect to the other and where the rotation of the rollers is synchronized by means of a gear wheel mechanism, this mechanism in a preferred embodiment is provided with two pairs of coarse gear wheels, the gear wheels in each pair being coaxial and firmly interconnected as well as angularly displaced 180° divided by the number of teeth, corresponding to one half tooth pitch, relative to each other.  Such a mechanism ensures the maintaining of correct engagement of the rollers, also if they are pressed apart by passing material agglomerations.
Patent CA-2077236-A1 (CA)
Title: Multivalent ion tolerant steam-foaming surfactant composition for use in enhanced oil recovery operations
Inventor: LOH WILLIAM
IPC: C09K23/02
Filed: 1992-08-31
Abstract: Abstract of the Disclosure A method for recovering hydrocarbons from a reservoir during gas injection into the reservoir comprises at least periodically injecting a gas comprising steam and a foam-forming composition which includes at least one steam foam diversion surfactant into a reservoir which contains at least one multivalent cation. The foam forming composition comprises water, an effective foam-forming amount of the surfactant which preferably comprises an alkyl aromatic sulfonate and a precipitation control additive. This precipitation-control additive preferably comprises an alpha-olefin sulfonate dimer (AOSD). The method further comprises contacting the hydrocarbons in the reservoir with the foam and the gas so as to assist in the recovery of hydrocarbons from the reservoir.
Patent CA-2077336-A1 (CA)
Title: Adhesif thermofusible a reticulation par l'humidite a base de polyurethanne
Inventor: ANDERSON GREGORY J
IPC: C09J175/00
Filed: 1991-03-29
Abstract: n peut préparer des compositions d'adhésif thermofusible combinant les caractéristiques d'adhésifs thermoplastiques thermofusibles et d'adhésifs réactifs en mélangeant un élastomère thermoplastique de type polyester polyéther de formule (I) où Nu est principalement un noyau cyclique et R1 est un radical choisi au hasard entre un groupe alkylène en  C2-6 et une sous-unité de polyéther amorphe comportant un groupe polyoxyalkylène avec un prépolymère de polyisocyanate. La composition qui en résulte est souple et peut être utilisée comme adhésif ou comme résine de scellement.
Patent CA-2080677-A1 (CA)
Inventor: HENRICSON KAJ
IPC: D21C3/24
Filed: 1992-10-15
Abstract: Paper pulp is produced from small chips (e.g. having a smallest dimension of between about 1 and 5 mm), which may be more easily penetrated by the treatment liquids resulting in a more uniform Kappa distribution which makes it possible to cook to lower Kappa numbers without losing strength.  The chips are steamed and then impregnated with sulfur containing liquor in an impregnation vessel having a conveyor. The conveyor, such as an endless belt with baffles, moves the chips through the liquor rather than trying to circulate the liquor.  From the impregnation vessel the chips move to the top of an upright digester where they are steamed, and then are subjected to digesting conditions, entrained in white liquor, in the digester and discharged from the bottom.  The digester has smooth side walls, devoid of screens and circulation loops.  At the bottom of the digester the chips -- at a consistency of about 10 to 20% -- are diluted to a consistency of about 6 to 10% and then passed, with a feeding a mechanism, to a first pressure diffuser.  From the first pressure diffuser the chips pass through a flow control valve to a hot alkali extraction tank, and then to a second pressure diffuser.
Patent CA-2080836-A1 (CA)
Title: Additifs sous forme solide dispersables en milieu aqueux, methode de preparation de ceux-ci et particules polymeriques traitees a l'aide de ces additifs
Inventor: SHARMA MAHENDRA K
IPC: C08K9/08
Filed: 1991-04-09
Abstract: Des systèmes additifs sous forme solide dispersables en milieu aqueux sont présentés, accompagnés de méthodes d'obtention et de méthodes assurant leur dispersion dans les milieux aqueux. Des méthodes d'application de ces additifs à des particules polymériques, ainsi que les particules traitées de la sorte, sont présentées.
Patent CA-2081574-A1 (CA)
Inventor: HEILEMAN DAVID W JR
IPC: H04Q3/00
Filed: 1991-05-06
Abstract: A platform (10) for supporting telephone network applications (11) includes Network Interface Units (NIU) (19) for interfacing between the telephone network (12) and the platform. A disk storage system (23) is included for storing voice messages to be sent over the network and voice messages received from the network. Voice messages are conveyed between the NIUs and the disk storage system by Voice Interface Modules (VIM) (25). The platform is installed on a general purpose digital computer and includes an Applications Interface Module (AIM) (15) responsive to an AIM command set comprising: Send Voice Message; Delete Voice Message; Connect Call, Terminate Dialog, Collect Digits, Initiate Call; Terminate Call; Get Message Numbers, Get Voice Message;  Create Void Message, Pivot and Split Call. In response to Send Voice Message, a designated message stored on the disk system is sent to the network via the VIM. Send Voice Message has a. Receive Voice Message (105) option whereby a message is received from the network after the Send data is transmitted-and stored on disk. In response to Get Voice Message, the Receive data is copied to an application specified file. The platform initiates a call to the network in response to Initiate Call and an application is informed of an incoming call to the network by an Incoming Call Response from the AIM to the application.  DTMF  digits (124) entered during a call are returned to the application in response to Collect Digits or an AIM command which processes digits such as Send Voice Message. The digits are processed in accordance with Digit Rules (43) for collecting a predetermined number of digits or collecting digits until a digit in an application provided Delimiter List (45) in encountered. Transmission of voice messages is terminated in response to receipt of a digit in an application provided Break List. The ports (20) of the NIUs are connected;  disconnected and interconnected in. response to Connect Call, Terminate Call; Pivot Call and Split Call: Voice messages are deleted from the disk storage system in response to Delete Voice.      Message.
Patent CA-2081609-A1 (CA)
Title: Acrylic-based structural adhesives
Inventor: DI RUOCCO VITTORIO
IPC: C09J4/06
Filed: 1992-10-28
Abstract: ACRYLIC-BASED STRUCTURAL ADHESIVES          ABSTRACT          The invention provides acrylic-based heat-resistant bicomponent structural adhesives comprising: a)   a first adhesive component consisting of:     -   an elastomer;     -   a monofunctional acrylic monomer;     -   a free radical generator;     -   a solution stabilizer;     -   an adhesion promoter;     -   a cross-linking agent;     -   a heat stabilizer for the adhesive, chosen from maleimide derivatives containing acrylic residues; and b)   a second component activating the first adhesive component and consisting of:     -   a mixture of aldehyde-amine condensation products;     -   an organic salt of a metal of the first transition series of low oxidation state.
Patent CA-2082907-A1 (CA)
Title: Rechargeable power pack
Inventor: LEISERSON STEVEN G
IPC: H01M50/50
Filed: 1992-11-13
Abstract: A rechargeable power pack (31) is shaped and dimensioned to be inserted in the battery compartment of an electrical device. The top (32) of the power pack is exactly symmetrical with the battery compartment cover which it replaces. The power pack has a peripheral wall (36) spaced apart from the sides of the battery compartment mounting the battery contact terminals. Flexible prongs (45, 46) project from the peripheral walls (36) to provide a wiping contact with either a spiral spring negative terminal or a stationary positive terminal. A top mounted connector (52) allows recharging of the power pack either during or after operation of the electrical device. An alternate embodiment combines a set of NiCad rechargeable batteries and a cover assembly including an additonal battery station to compensate for lower rated voltage of NiCad power cells, a recharging connector and associated current limiting circuit, and a flexible conductor with terminals specially adapted for insertion between the battery poles and the corresponding terminals. <IMAGE>
Patent CA-2083060-A1 (CA)
Title: Process for the extraction of peat and apparatus for carrying out the process
Inventor: GERSZ TADEUSZ
IPC: A61P35/00
Filed: 1992-03-11
Abstract: ABSTRACT OF THE DISCLOSURE     The extracting agent, preferably sodium hydroxide solution containing 0.2 to 0.7 % of NaOH, is allowed to flow from bottom to top through a bed of the comminuted peat and is removed above the bed, at a rate such that the flow remains laminar and the extract obtained remains essentially free of entrained particles of the peat to be extracted.  If appropriate, fresh extracting agent is added and the extracting agent is allowed to flow once more through the bed, preferably is recirculated several times.  The apparatus for carrying out the process has at least one storage tank for the extracting agent (NaOH), at least one extraction tank and at least one circulation tank for the extracting agent enriched with extract, feed pipes in which pumps are arranged leading both from the storage tank (NaOH) and from the circulation tank into the lower pipe from each extraction tank, while the discharge pipe from each extraction tank leads from its upper part and enters the associated circulation tank.
Patent CA-2083430-A1 (CA)
Title: Process for preparing sintered shapes and compositions for use therein
Inventor: BURK W MICHAEL
IPC: C04B35/111
Filed: 1992-11-20
Abstract: Title:    PROCESS FOR PREPARING SINTERED SHAPES AND COMPO-SITIONS FOR MAKING THE SAME     Abstract of the Invention The invention relates to a method of preparing sintered shapes, comprising the steps of:   (1) forming a green body from a mixture comprising  (A)  at least one inorganic powder with (B) at least one polymer derived from (a) at least two sulfo monomers or (b) a combination of (i) a sulfo monomer with (ii) at least one monomer selected from acrylic compounds, acrylonitriles, vinyl lactams and vinyl pyrrolidones and maleic acids, anhydrides or salts, provided   the   mixture   is   substantially   free   of polysaccharide; (2) sintering the body.  Inorganic shapes made from the compositions of the present invention have relatively high fired densities; small uniform grain sizes; and relatively low porosity.   The sulfo polymers of the present  invention help disperse  the  inorganic  powder. These polymers improve deagglomeration of the inorganic powder and also help prevent reagglomeration of the powder. The polymers provide divalent ion stability for systems using water containing divalent ions, such as hard water. These polymers help reduce viscosity of inorganic powder slurries and improve defloculation of the inorganic powder.
Patent CA-2084482-A1 (CA)
Title: Chain pail lid
Inventor: WARDELL MYRON H JR
IPC: B65D51/24
Filed: 1992-12-03
Abstract: ABSTRACT OF THE DISCLOSURE      An improved lid for a pail of the type in which chain or cordage is typically stored and shipped allows a user access to the chain or cordage within the pail without removing the entire lid and provides a means for retaining the end of the chain or cordage in an easily accessible position for the next user. The lid uses a uniquely shaped area of the lid defined by a perimeter of reduced thickness designed to be easily cut out or punched out with a hammer. The resulting hole allows easy hand access to the chain or cordage and has a notch at one side for hanging the loose end of the chain or cordage on for subsequent use.
Patent CA-2084753-A1 (CA)
Title: Air conditioning system and method
Inventor: REE CHRISTOPHER C
IPC: F24F7/003
Filed: 1991-06-05
Abstract: ABSTRACT OF THE DISCLOSURE An air conditioning system includes an air handling unit for supplying treated primary air through ductwork to a multiplicity of air mixing devices, each of which comprises an adjustable convergent nozzle device having its outlet upstream of an inlet end of a duct so that discharges of the primary air from the narrowed nozzle outlet entrains air from around the nozzle device, the resultant mixture forming secondary air which is discharged from the duct into a space to be conditioned.  The unit has means for heating or cooling the primary air, which may itself be a mixture of fresh air and recirculated air from the conditioned space, whilst the entrained air may also be treated prior to its mixing with the primary air.  A method of air conditioning is also disclosed.