baber/WOPTO huggingface dataset:
Patent CA-2087340-A1 (CA)
Title: Surface cleaning apparatus
Inventor: KOBLANSKI JOHN N
IPC: E02B15/10
Filed: 1992-05-15
Abstract: A separator jet (10) to separate a first liquid (62) from a second liquid (64) upon which the first liquid (62) is floating. The separator jet (10) has a main body (12) with a base (14) and a top (16). There is an inlet nozzle (18) in the base (14) to receive a transport fluid. An outlet nozzle (32) with a diameter larger than the inlet nozzle (18) receives fluid from the inlet nozzle (18) and is positioned within the main body (12) to define an inlet (34) for the first and second liquids in the top (16) of the main body (12). An inlet (42) in the base of the outlet nozzle (32), adjacent the inlet nozzle (18), receives the first and second liquids and allows the first and second liquids to be transported by the transport fluid out of the outlet nozzle (32). The jet (10) may be mounted on a float (44) and, in the preferred embodiment, may be mounted on a vessel (60) that can be anchored in a waterway to clear oil from that waterway or mounted to be able to sail in polluted water.
Patent CA-2087849-A1 (CA)
Inventor: ANDERL MANFRED
IPC: B06B1/16
Filed: 1992-04-29
Abstract: The machine proposed has a vibrating plate (1) with unbalanced shafts (W1 to W4) mounted in pairs in it. Each shaft (W1 a W4) is individually driven by a motor (M1 to M4) which runs at a given speed; in synchronization with the other motors. Each shaft (W1 to W4) is fitted with an eccentrically disposed body (U1 to U4). Each motor (M1 to M4) can be controlled, with angular synchronization; by an electronic control unit in such a way that the speed of rotation of the shafts (W1 to W4) can be changed for a short period to alter the vibration frequency; and the speed of rotation of at least one of the two shafts, (W1 to W4) in each pair can be changed for a short period to alter the angular positions of the eccentrically disposed bodies (U1 to U4) with respect to each other.
Patent CA-2088707-A1 (CA)
Inventor: IWAI ICHIRO
IPC: B23K35/14
Filed: 1993-02-03
Abstract: A brazing agent comprises an aluminum alloy which contains a flux, the agent having an apparent density of 90 % or more of a theoretical density, the aluminum alloy comprises in addition to the flux: aluminum element; and silicon element at about 3 - 15 % by weight of all the elements other than the flux, so that the ratio in weight of all the elements to the flux is from 99.9 : 0.1 to 70 : 30. The aluminum alloy may further contain one or more elements selected from a group consisting of zinc, tin and indium, at about 0.1 - 5 %, 0.01 - 0.5 % and 0.01 - 0.5 % by weight of all the elements, respectively. A brazing sheet may be of such a structure that a core sheet made of aluminum or its alloy has at least one surface clad with a skin layer which has a thickness of 10 µ m or more for each surface.
Patent CA-2090029-A1 (CA)
Title: Storage drum with drain channel
Inventor: MURPHY DONALD M
IPC: B65D25/38
Filed: 1991-09-10
Abstract: An improved drum draining apparatus is provided through forming a lowered sump (12) in the bottom panel (10) of the drum (9) opposite the bunghole (14) and forming a channel (21) along the inside wall of the drum which connects the sump (12) to the bunghole (14). When the drum (9) is nearly empty, the remaining fluid inside the drum (9) can be drained by tilting the drum (9) from a vertical position over onto the side where the channel (21) is located.
Patent CA-2090766-A1 (CA)
Title: Infrared signal transmitter
Inventor: LASZLO CHARLES A
IPC: H04B10/80
Filed: 1993-02-25
Abstract: INFRARED SIGNAL TRANSMITTER Abstract of the Disclosure An infrared signal transmitter which has a signal generator enclosed in a housing, and a transmitter head which is removably attached thereto. The transmitter head includes a plurality of infrared transmitting elements arrayed in selected patterns to provide multidirectional transmission of infrared signals to a waiting receiver.  The transmitter head and housing are provided with mating plug-in connectors permitting the transmitting head to be easily changed to provide selected transmitting arrays or patterns.  The transmitter has its own power supply to be self-contained and portable.
Patent CA-2091582-A1 (CA)
Title: Abrading device
Inventor: EDGERLEY DAVID A
IPC: B24B3/36
Filed: 1991-08-13
Abstract: An abrading device (10) comprising a housing (12) to provide a reservoir (14) for cooling fluid, an abrading wheel (15) mounted in the housing (12) for rotation about a substantially horizontal axis, first means (18) to direct cooling fluid from the reservoir (14) upwards upon rotation of the abrading wheel (15) about its axis, and second means (20) to direct the said upwardly directed fluid across a sharpening face (25) of the abrading wheel (15) to effect cooling of an edge tool being sharpened against said face (25). An implement holder is mounted for movement relative to a surface portion (25) of the abrading wheel that is directed at a small angle, e.g. less than 5· (preferably about 1·), to the perpendicular to the wheel axis and is in use in contact with the implement.
Patent CA-2093098-A1 (CA)
Inventor: PIKKUJAEMSAE ESA
IPC: D21C11/04
Filed: 1993-03-31
Abstract: Abstract The  invention  relates  to  a  method  of  separating sulphur from a cellulose cooking process of a sul-phate cellulose plant and of recycling it for being reused. In the method, the sulphur is separated and recovered as odour gases produced at various stages of the pro-cess, which gases are passed to combustion of odour gases and oxidated after that by means of a catalyst into sulphur trioxide, which as an aqueous solution produces sulphuric acid. The sulphuric acid again is used for replacing the outside sulphuric acid needed by the plant.            (Figure 1)
Patent CA-2094495-A1 (CA)
Title: Methods for modifying and detecting the effects on the interaction of modified polypeptides and target substrates
Inventor: BOTSTEIN DAVID
IPC: C12N15/10
Filed: 1991-10-21
Abstract: The invention relates to methods and mutation linkers to modify DNA, to methods for producing libraries containing a multiplicity of modified DNA, and to methods for using such libraries for screening modified proteins encoded by such DNA. The DNA targeted for modification typically encodes a polypeptide such as an enzyme. The libraries ara used to determine the effect of such modification or the interaction of the modified polypeptides with a target. In preferred embodiments, the invention relates to methods for making and using libraries containing DNA encoding modified antibiotic hydrolases to screen antibiotics against one or more of the modified antibiotic hydrolases produced by such libraries. Susceptibility or lack of susceptibility of an antibiotic to neutralizaation provides an indication of whether wild-type antibiotic hydrolases are likely to mutate to confer resistance to the antibiotic.
Patent CA-2096278-A1 (CA)
Title: Gender test method
Inventor: REYNOLDS REBECCA
IPC: C12Q1/68
Filed: 1993-05-14
Abstract: ABSTRACT     The present invention relates to a method for determining the gender of a human being based on a DNA sample originating from said human being. In one embodiment of the invention, the oligonucleotide primers CTGGAGAGCCACAAGCTGAC (SEQ ID NO:l); and TTGCTGTGGACTGCCAAGAG (SEQ ID NO:2) are used to amplify an approximately 209 base pair conserved region of the X and Y zinc finger protein coding sequence. Then, digestion of the amplified product with a HaeIII restriction enzyme results in distinguishable fragments for female and male samples. The invention also relates to the said oligonucleotide primers per se, preferably in labeled form, to the use of said primers as a diagnostic tool and to a test kit comprising said oligonucleotide primers.
Patent CA-2096516-A1 (CA)
Title: Process for the preparation of fluoroaliphatic aminocarboxylate surfacants
Inventor: STERN RICHARD M
IPC: C07C303/40
Filed: 1991-12-11
Abstract: A process for the synthesis of the fluorochemical compound having the formula: RfSO2N(CHR2-CHR2COO-)R1N+(R)2H, wherein Rf is a fluoraliphatic radical containing 3 to 20 carbon atoms. The synthesis involves reaction of compounds of formula RfSO2N(H)R1N(R)2 and CHR2=CR2COOH in solution at elevated temperatures. The process can be used to synthesize the fluoroaliphatic amphoteric amino carboxylate surfactant having the formula: C6F13SO2N(C2H4COO-)C3H6N+(CH3)2H, which compound is useful in aqueous film-forming foamable concentrates for extinguishing flammable liquid fires.
Patent CA-2097253-A1 (CA)
Title: Low profile stackable conveyor oven
Inventor: BRUNO ADRIAN A
IPC: A47J37/08
Filed: 1993-05-28
Abstract: A conveyor oven module has a very law profile so that more oven modules may be stacked to give a greater baking capacity in the same "foot print" without the top conveyor being higher than the five and a half feet from the floor, which is the generally accepted maximum height for people to reach. Almost all serviceable parts are in the front of the coven. The oven modules are self-contained so that an oven module may be serviced while the remainder of the oven modules in the stack continue to operate.
Patent CA-2099765-A1 (CA)
Title: Hemodialysis conductivity servo-proportioning system
Inventor: HARTRANFT THOMAS P
IPC: G01N27/06
Filed: 1992-11-12
Abstract: An improved conductivity based servo-proportioning sys-tem (10, 40) for hemodialysis machines. The servo-proportioning system calculates the actual conductivity contributions of the indi-vidual chemical components of the concentrate being utilized, to determine the conductivity set points. An Acidified and Bicarb operation is being performed, then the servo-proportioning sys-tem calculates a conductivity set point at both an intermediate and final stage of the servo-proportioning system. If only acetate is being performed, then only the acetate individual chemical components are calculated. If the Na and/or Bicarb concentra-tions are to be varied, then the conductivity is calculated for the changed Na and/or Bicarb concentrations.
Patent CA-2099912-A1 (CA)
Title: Watermark detection
Inventor: FALCONER ANDREW P
IPC: B26D5/34
Filed: 1993-07-06
Abstract: ABSTRACT          Watermark Detection A system is disclosed for detecting watermarks or other marks made along a web of paper at regular intervals.          The watermarks are detected by a video camera (40) activated by a frame grabbing pulse (136) in a control loop.   The video for each frame grab pulse signal is digitized and processed  to  detect  the watermark  and  to measure  its position (124) within the frame.   The error between the measured position and a frame reference is used to adjust (128) the value of a parameter (NEWCOUNT) representing the distance or pitch between successive watermarks.  This value is in turn used to determine the moment of the next or a succeeding frame grab pulse.  All timing is done in terms of measured length of web run by measuring pulses from an encoder (32).  The control loop acts to track variations in the watermark pitch.  The system may include circuitry (140) for detecting and measuring every Mth mark while at the same time  generating  an  interpolated  pulse  (24)  for  each watermark usable in the control of a machine for cutting sheets of stationery paper from the web.   Procedures are also described for automatically acquiring initial detection of watermarks on running the web up to speed.    A fast infra-red strobe apparatus cooperable with the camera (40) is also described as a source (42) for illuminating the web.
Patent CA-2100076-A1 (CA)
Title: Above-ground swimming pool
Inventor: DUGAS GERALD
IPC: E04H4/14
Filed: 1992-01-07
Abstract: An above-ground frameless pool (10) includes an elongated continuous base (12) with a groove (20) and a flexible sheet metal wall (14) extending along the groove (20) and being joined end to end (28) to form a continuous wall. A coping (16) extends about the top edge of the flexible wall (14), and the coping (16) is an endless rigid member having a deep groove (40) for receiving the top edge of the wall member (14) in a snug manner in order to provide stability to the structure.
Patent CA-2102178-A1 (CA)
Title: Novel immunosuppressive compounds
Inventor: DUFFY JOHN P
IPC: C07D211/60
Filed: 1992-05-26
Abstract: This invention relates to anovel class of immuno-suppressive compounds having an affinity for the FK-506 binding protein (FKBP).  Once bound to this protein, the immunosuppressive compounds inhibit the prolyl peptidyl cis-trans isomerase (rotamase) activity of the FKBP and inhibit T cell activation. As such, the compounds of this invention can be used as immunosuppressive drugs to prevent or significantly reduce graft rejection in bone marrow and organ transplantations and for use in the treatment of a wide variety of autoimmune diseases in humans and other mammals.
Patent CA-2108510-A1 (CA)
Title: Kitchen ventilator
Inventor: CASTWALL LENNART W
IPC: F24C15/20
Filed: 1993-10-15
Abstract: Abstract A kitchen ventilator comprises a housing (10) having a motor powered fan (20), an inlet (11), an inlet passage (25) between the inlet and the fan, an outlet (17), and an outlet passage (23) between the fan and the outlet, said passages being separated by a generally vertical partition wall (22). The inlet passage is partially formed by a baffle wall (26) provided between the inlet and the fan, and a removable front wall (16) provided with a sound absorbing material,  and the outlet passage  (23)  has a narrowing portion (33) which is provided on both sides with sound absorbing material (18, 19).    For reducing the noice level, the ventilator is provided with means for active silencing, comprising an acoustic sensor (28) for sensing the noice of the fan, a loudspeaker (30) for emitting a sound silencing the fan noice in reverse phase therewith, and an electronic control unit (29) connected to said sensor and said loudspeaker and adapted to control the loudspeaker in response to information received from said sensor.            (Figure 1)
Patent CA-2110258-A1 (CA)
Inventor: SCHUNCK STEPHAN
IPC: B05D5/02
Filed: 1992-05-13
Abstract: Method of producing dull surfaces Abstract The present invention relates to a method of producing dull surfaces, in which initially a first paint layer is applied in a first layer thickness and at least one second paint layer is then applied on top of the first paint layer, at least the paint layer applied last being provided with dulling agents and having a dry film layer thickness which is less than the average particle size of the dulling agent. The method is characterized in that  the paint layers applied are cured by ionizing radiation.
Patent CA-2110703-A1 (CA)
Title: Process and culture medium for the production of cells infected by a multiple sclerosis associated virus
Inventor: PERRON HERVE
IPC: C12N7/00
Filed: 1993-04-02
Abstract: A culture or cell line infected with a virus strain associated with multiple sclerosis (MS) is prepd. by (1) taking a body sample from an MS patient; (2) culturing this in medium favouring growth of infected cells to produce a culture of primary infected cells; (3) subjecting a sample of this (or of derived subculture) to successive passaging. The culture medium used contains an antibody (Ab) against beta-interferon (or an antigenically similar cpd.) which acts as an inhibitor of viral expression, to allow persistent expression of virus and propagation of the viral strain in the culture or cell line. Also new are (1) prodn. of continuous cultures or cell lines infected with the viral; (2) culture media contg. Ab; (3) cell withdrawn from (or belonging to) cultures produced as above (also their derivs. in which the genome has been modified without affecting the phenotype); (4) method for transactivation of MS-related virus in such cells; (5) virus fractions isolated from these cells; and (6) immunological reactant comprising mono- or poly-clonal antibodies directed against antigenic viral extracts.
Patent CA-2111986-A1 (CA)
Title: Valve
Inventor: CROSS ROBERT K
IPC: F02M51/06
Filed: 1992-06-10
Abstract: A fluid control valve includes a valve member movable into engagement with a seating to prevent flow of fluid through the valve. An actuating member is biased in one direction by a return spring and is moved against the action of the return spring by the armature of an actuator when the winding thereof is energised. The movement of the actuating element is transmitted to the valve member through an under travel spring which yields to allow continued movement of the actuating member when the valve member engages the seating.
Patent CA-2112151-A1 (CA)
Inventor: OKANOUE KAZUHIRO
IPC: H04L25/02
Filed: 1993-12-22
Abstract: In a digital data demodulating apparatus, a sampling circuit samples a received signal at a speed N x K(N > 1, K > l; integers) times a symbol rate to output received signal sequences.  N received signal sequence selection circuits estimate channel impulse responses from the respective received signal sequences to obtain channel state data, and output a control pulse and the estimated channel impulse response values.  A received signal sequence selection controller outputs a switch control signal on the basis of the channel state data.  N selectors select demodulation received signal sequence candidates from the received signal sequences on the basis of the control pulse.  A first switch selects/outputs a received signal sequence to be demodulated on the basis of the switch control signal. A second switch selects/outputs an estimated channel impulse response value estimated from the received signal sequence to be demodulated on the basis of the switch control pulse.  A demodulation circuit performs demodulation upon reception of the outputs from the first and second switches.
Patent CA-2112399-A1 (CA)
Inventor: FERRANTE ANTONIO
IPC: A23L33/12
Filed: 1992-06-24
Abstract: It has been found that fatty acids having a carbon chain length of up to 30 carbon atoms, including two or more double and/or triple bonds, derivatives thereof and oxidation products have activity against protozoan and heiminth parasites, bacteria, fungi, C'hlamydia, Mycoplasma, Rickettsia and viruses. These compounds also have anti-tumour activity.
Patent CA-2113541-A1 (CA)
Inventor: AMPULSKI ROBERT S
IPC: D21H/
Filed: 1992-06-29
Abstract: Disclosed is a process for making soft tissue paper which includes the steps of wet-laying cellulosic fibers to form a web; drying the web and elevating the web temperature, creping the hot web, and applying low levels of a polysiloxane material to the hot, creped web. Preferably, the hot web is dried to a moisture level below its equilibrium moisture content before application of the polysiloxane material. The process may further include the steps of applying an effective amount of a surfactant material to enhance softness and/or wetability control; and/or an effective amount of a binder material such as starch, for linting control, and/or to contribute tensile strength to the tissue paper.
Patent CA-2115334-A1 (CA)
Title: Film forming solution, porous film obtained therefrom and coated material with the porous film
Inventor: TOMIOKA ISAO
IPC: C09D179/08
Filed: 1994-02-09
Abstract: ABSTRACT OF THE DISCLOSURE       A film forming solution which does not require aprotic polar solvents, a porous film of poly(4,4'-oxydiphenylenepyromellitimide) obtained from the film forming solution which has excellent heat and chemical resistances, which is controllable in terms of porosity and pore size of the film and which has excellent electrical characteristics, and a coated material where the porous film is formed on a base material.       Particularly, a film forming solution of a precursor of poly(4,4'-oxydiphenylenepyromellitimide) and a mixture of at least three solvents which are poor solvents for the precursor when each solvent is used alone, a porous film of poly(4,4'-oxydiphenylenepyromellitimide) obtained from the film forming solution and a coated material where the porous film is formed on a base material.
Patent CA-2115831-A1 (CA)
Title: Improved transdermal formulations
Inventor: JENNER JOHN
IPC: A61K47/12
Filed: 1992-08-21
Abstract: An improved transdermal delivery composition is provided comprising a low molecular weight fatty acid, characterised in that it further comprises a long chain fatty acid or a long chain fatty acid lower alkyl ester, wherein the long chain is a C13 to C21 chain and preferably contains at least one cis-olefinic bond.  Preferred long chain components are oleic acid and ethyl oleate while the preferred low molecular weight fatty acid is propionic acid.  The compositions are particularly effective at transdermally delivering physostigmine and its analogues in a stable dosaged manner.
Patent CA-2116643-A1 (CA)
Inventor: ELLIS PHILIP C
IPC: E05B9/08
Filed: 1994-02-28
Abstract: A double cylinder tubular deadbolt lock having the inside cylinder provided with a removeable cap or cover which covers the exposed screws in the flanged face of the inside cylinder.
Patent CA-2121967-A1 (CA)
Inventor: OFFERHAUS DOUGLAS H
IPC: D21F11/00
Filed: 1994-04-22
Abstract: A method of reducing surface irregularities in paper machine headbox components such as the apron floor. A lap having a working surface diameter greater than the dominant dimensional characteristic of the irregularities is provided.  The lap's working surface is machined flat to a tolerance equivalent to a desired flatness tolerance of the apron floor.  A central, circular portion of the lap's working surface is counterbored to define an outer, annular cutting region on the lap's working surface.   The apron floor is  levelly  supported and measured to obtain an initial profile of surface irregularity as a function of position on the apron floor.   The lap is then driven to rotate its cutting region levelly on and over the apron floor while abrasive material in solid form and a coolant are applied between the lap and the apron floor.  The apron floor is again measured to obtain an updated profile of surface irregularity as a function of position on the apron floor.  The lapping and measuring steps are repeated with progressively  finer grades  of  abrasive material  until comparison of the initial and updated profiles reveals attainment of the desired flatness tolerance of the apron floor.  The procedure can be repeated at corner regions of the apron floor by substituting for the lap a corner lap having a working surface diameter significantly less than the apron floor width.
Patent CA-2122773-A1 (CA)
Title: Staple cartridge for a surgical stapler
Inventor: WILLIAMSON WARREN P IV
IPC: A61B17/072
Filed: 1994-05-03
Abstract: ABSTRACT A staple cartridge for a surgical stapler includes a staple drive member which is driven by longitudinal movement of a cam through the surgical stapler for firing at least one surgical staple.  The staple drive member comprises a staple drive element having a staple driving surface in association with the surgical staple for angular orientation of the surgical staple, when applied, with respect to the direction of movement of the cam.  The staple drive member further comprises a cam contact element having a cam contact surface for being engaged by the cam, and an arrangement for pivotally connecting the staple drive element to the cam contact element.
Patent CA-2126665-A1 (CA)
Title: 5-o-desosaminylerythronolide derivatives
Inventor: ASAKA TOSHIFUMI
IPC: C07H17/08
Filed: 1992-12-25
Abstract: ABSTRACT          Object:          Provision of novel macrolide antibiotics having a strong antibacterial activity.            Construction:       Compounds represented by the formula:                               which are obtained by introducing a certain substituted carbonyloxy group into 5-O-desosaminylerythronolide derivatives at the 3-position; and pharmaceutically acceptable acid addition salts thereof.
Patent CA-2126914-A1 (CA)
Title: Production of alumina
Inventor: MOODY GILLAIN M
IPC: C01F7/145
Filed: 1994-06-28
Abstract: ABSTRACT                 Production of Alumina The crystallisation of alumina from pregnant Bayer process liquor is improved by including in a liquor a crystallisation modifier which is a blend of a mineral oil and a silicone oil.