baber/WOPTO huggingface dataset:
Patent CA-2001554-A1 (CA)
Title: Method and apparatus for diagnosing intracellular parasite infections using an enzyme detection system
Inventor: MAKLER MICHAEL T
IPC: C12M1/34
Filed: 1989-10-26
Abstract: METHOD AND APPARATUS FOR DIAGNOSING INTRACELLULAR PARASITE    INFECTIONS USING AN ENZYME DETECTION SYSTEM               Abstract of the Disclosure The present invention involves a highly specific chemical system for detecting parasite-infected cells.  The method is especially effective in detecting intraerythrocytic diseases, especially malaria.  With respect to malaria, chemical agents are used to detect enzymes produced by the infecting parasites.  Blood samples are combined with a plurality of substrates which are subject to enzymatic hydrolysis. Hydrolysis is rapid and may be detected in two ways.  The first method involves substrates having a fluorescent detecting group.  Upon hydrolysis, the fluorescent group is cleaved and detected using a conventional fluorescent light source. Alternatively, substrates may be used having a detecting group which forms a visibly colored material when combined with a secondary reagent.  These techniques produce a unique colored or fluorescent pattern which enables the rapid and accurate determination of parasite infection.  Furthermore, parasite diagnosis is accomplished without the use of expensive and complex diagnostic equipment.
Patent CA-2002895-A1 (CA)
Title: Arithmetic unit
IPC: G06F9/38
Filed: 1989-11-14
Abstract: ARITHMETIC UNIT                 ABSTRACT OF THE DISCLOSURE            An information processing system includes a first data processing device (10) and a second data processing device (12) each of which is capable if independent instruction execution during instruction cycles having a period which is a multiple of a periodic unit clock signal period.  The devices are disclosed to be an arithmetic unit and a central processor coupled together by an interface (14).  Each of the data processing devices (10, 12) include a clock generation device (180) having an input coupled to the unit clock signal for generating an associated instruction cycle clock signal which has a period which is a multiple of the unit clock signal period.  The clock generation device (180) is further operable for suspending the generation of a next instruction cycle clock signal and for beginning the next instruction cycle clock signal in synchronism with a transition of the unit clock signal.  The devices (10, 12) each request synchronization of their respective clocks which are then automatically synchronized to the other devices clock during a transition of the unit clock, allowing for instructions and operands to be synchronously passed between the central processor to the arithmetic unit.
Patent CA-2003184-A1 (CA)
Inventor: HOSSAIN K MOSSADEQ
IPC: A61B17/00
Filed: 1989-10-03
Abstract: A microsurgical irrigation/aspiration system is provided, including a controller having a pump roller head, actuators for occluding fluid lines, a suction sensor, and means for mounting a pump cassette, the system cassette is suitable for mounting on the controller and has an opening with a pump segment passing along an arcuate wall of the opening. When the cassette is mounted on the console, the roller head is engaged in the cassette opening and compresses the pump segment against the arcuate wall. An infusion line passes through the cassette and is occludable by one of the actuators, and a vent line connected to the pump segment is occludable by a second actuator. A suction sensing port on the cassette couples with the suction sensor in the controller. In an alternate embodiment, a cassette is disclosed within which both vacuum and peristaltic pumping is possible. Latching may be accomplished by a plunger attached to the sensory port of the cassette.
Patent CA-2005036-A1 (CA)
Title: Process for producing highly crystalline and homogeneous sub-micron doped and undoped piezoelectric ceramic powders with controlled stoichiometry and particle size
Inventor: SWARTZ SCOTT L
IPC: C30B7/00
Filed: 1989-12-08
Abstract: PROCESS FOR PRODUCING HIGHLY CRYSTALLINE AND HOMOGENOUS SUB-MICRON DOPED AND UNDOPED PIEZOELECTRIC CERAMIC POWDERS WITH CONTROLLED STOICHOMETRY AND PARTICLE SIZE     ABSTRACT OF THE INVENTION          This invention provides a single crystal, solid solution, chemically homogenous powder of a lead zirconate titanate perovskite compound having useful electrical properties and the general formula Pb(Zr1-xTix)O3, wherein x has a value between 0.44 and 0.56.  The powder may also contain other secondary ingredients, such as dopants and solid solution substitutions, up to 13 mole % that alter electrical properties.  The powder may have a sintering temperature of less than about 1100°C and a controlled average particle size ranging from about 0.4 to about 1.2 microns.  A process for making this powder is also provided which comprises: (a) preparing a first acidic solution containing zirconium and titanium ions, and optionally other ions; (b) preparing a second basic solution containing a sufficient concentration of hydroxide to provide a pre-determined pH when mixed with the first solution; (c) adding the first acidic solution to the second basic solution to precipitate a substantially pure mixture of hydroxides; (d) washing the precipitate and adding a lead compound; (e) preparing an aqueous slurry of the washed precipitate and adding lead ions, and optionally other ions;          (f) hydrothermally treating the slurry at an elevated temperature and pressure for a time sufficient to form the powder; and (g) drying the powder.
Patent CA-2006982-A1 (CA)
Inventor: BOWMAN BARRY A
IPC: F16H59/02
Filed: 1990-01-05
Abstract: ABSTRACT OF THE DISCLOSURE A single lever directional control system for positively conditioning a tractor transmission for either a forward or reverse mode of operation.  The control system includes a controller for engaging the transmission in either of two modes of operation as a function of the electrical signals directed to the controller, an electrical switch for directing electrical signals to the controller as a function of the operative state of the switch, and an over-center control lever for controlling the operative state of the switch.  The over-centering of the control lever positively positions the lever in either of two positions corresponding to the two modes of operation of the transmission.  Precise shifting of the transmission is facilitated by configuring the control lever for movement in two distinct directions of movement to shift the transmission.
Patent CA-2007230-A1 (CA)
Inventor: HIRANO TAKAHISA
IPC: F24F11/02
Filed: 1990-01-05
Abstract: A compressor, e.g., a scroll type compressor for a heat pump including a bypass passage by way of which the high pressure  side  of  the  compressor  is  communicated with  a compression chamber in which a compression stroke is carried out   is   disclosed.    The   compressor   further  includes opening/closing means so that when it is required that the compressor  is  operated at a high efficiency,  the bypass passage  is  closed  and  when  it  is  required  that  the compressor is operated with a high level of ability,  the bypass passage is opened so as to allow high pressure gas to be  introduced  into  the  compression  chamber  in  which  a compression  stroke  is  carried  out  whereby the  gas  is compressed again.
Patent CA-2007427-A1 (CA)
Title: Motor control circuit
Inventor: BROWN ROBERT J JR
IPC: H01H3/26
Filed: 1990-01-09
Abstract: A motor and manual actuated switch includes a motor control circuit for controlling the motor to rotate in either a clockwise or counterclockwise direction to actuate a mechanical switch between the open circuit and short circuit states.  The control circuit includes a capacitor coupled in series with the motor winding to form a series circuit and a control switch for connecting a source of d.c. power across said serial circuit when in a first position and a short circuit across said series circuit when in a second position.  When the control switch is moved to the first position, the capacitor charges, causing a current to flow through the motor winding during the charge time, thereby causing rotation in one direction. When the control switch is moved to the second position, the capacitor  discharges through the winding, thereby causing opposite current flow and shaft rotation.  The mechanical switch may be made to change states by actuation of a manual button or by rotation of the motor and includes a pin which  rotates upon a change of states of the mechanical switch.  The motor is interconnected with the pin by an extension and offset extending from the pin and an open center triangular shaped connector affixed to the motor shaft, with the offset extending into the open center.  The extension acts as a spring to reduce the impact of the connector against the offset when the motor shaft rotates.
Patent CA-2009148-A1 (CA)
Title: Computer based system timer (cbst)
Inventor: BAYNE ROBERT H
IPC: G07C3/04
Filed: 1990-02-01
Abstract: A monitoring system for automatically logging the accumulated operational hours of a plurality of instruments is disclosed herein.  The monitoring system has the capability of monitoring a large number of instruments that may be remotely located.  The monitoring system of the present invention is devised to continually monitor the on/off state of each instrument and hence measure the amount of time that each instrument is in an operational mode.
Patent CA-2009181-A1 (CA)
Title: Extrusion nozzle
Inventor: ROSSE MEINRAD
IPC: B29C48/305
Filed: 1990-02-02
Abstract: A nozzle for depositing a layer of fluid mass, particularly foamed dough, comprising a coupling (1) defining an entry passage (4), an inclined triangular body (2) integral with the coupling (1) and having a parallelepipedic cross-section which widens and slopes downwards in the downstream direction and, in the extension of said body (2), a curved end (3) terminating tangentially to the horizontal plane and defining an exit slot (11) in the form of an arc of a circle of which the centre is at the apex of the body (2).
Patent CA-2009739-A1 (CA)
Title: Process for preparing carboxylic acids
Inventor: JONES MICHAEL D
IPC: C07C51/12
Filed: 1990-02-09
Abstract: Case 7157(2) ABSTRACT OF THE DISCLOSURE             PROCESS FOR PREPARING CARBOXYLIC ACIDS      An improved liquid-phase process for preparing carboxylic acids having (n + 1) carbon atoms by rhodium catalysed carbonylation of an alcohol having n carbon atoms is provided.  The process is particularily suitable for preparing acetic acid from methanol in commercial carbonylation reactors operating at steady-state with a low standing quantity of water (eg 0.5 to 5% by weight).  The improvement lies in carrying out the carbonylation in the presence of an iodide stabiliser (eg lithium iodide) and a Group VI B metal costabiliser.  The process can optionally be carried out in the presence of hydrogen.
Patent CA-2009753-A1 (CA)
Title: Device for coupling modules
Inventor: CHEPELEV NIKOLAI I
IPC: B23B31/11
Filed: 1990-02-09
Abstract: DEVICE FOR COUPLING MODULES       Abstract The invention relates to the mechanical engineering. A device according to the invention has a screw mounted for axial movement and rotation in a first module and in a threaded hole of a shank of a second module. According to the invention, a screw pair consisting of the screw and a threaded hole is conical and the shank is elastic and has its outside diameter in at least one section thereof greater than the diameter of a tool hole of the first module.
Patent CA-2010966-A1 (CA)
Inventor: SUN SZU-CHENG
IPC: G06F3/048
Filed: 1990-02-27
Abstract: ABSTRACT OF THE DISCLOSURE     A computer output system comprising a first full screen bitmapped memory, a second full screen bitmapped memory, apparatus for providing input signals for writing information to be displayed by an output device to each position of the first memory, apparatus for storing in the second memory the positions of each position of the first memory to be written to the output device, and apparatus for comparing the signal stored at each position of the first memory and the signal stored at the same position of the second memory to determine whether information at the position is to be written to the output device.
Patent CA-2011441-A1 (CA)
Title: Constant output pump
Inventor: SCHNEIDER JOHN R
IPC: F04B43/073
Filed: 1990-03-05
Abstract: Abstract of the Disclosure A volumetric pump for a filtering system for dispensing into the system a predetermined constant amount of the liquid slurry over a period of time despite pressure variations at the pump outlet is disclosed.   The pump comprises an inlet connected to a supply tank and a pair of pump housings, each having a flexible diaphragm forming first and second chambers on opposite sides thereof within a  housing.    A  link  extending  between  said  housings interconnects the diaphragms so that they move together. A first check valve connected to one side of each housing and to said inlet allows liquid to move into a first chamber of one of said housings when its diaphragm is moved in one direction and allows liquid into the first chamber of the other said housing when its diaphragm is moved in the opposite direction.  A second check valve is connected on one side to the pump outlet and on the other side to the first check valve and thus also to said one side of the diaphragm for each housing.  A valve controls the supply of air pressure first to one side of one housing and then to one side of the other housing in alternating cycles for moving the diaphragms within their respective housings at a  preselected  periodic  rate.    A  timer  controls  the frequency of the alternating air pressure cycles so that the pump will operate to meter a precise predetermined amount of liquid at its outlet from the liquid supply tank over a period of time despite any variations in outlet back pressure.
Patent CA-2012425-A1 (CA)
Inventor: ITOH ATSUO
IPC: H04L49/111
Filed: 1990-03-16
Abstract: Disclosed is a packet switching system having, on its input side, m-sorting modules each having sorting circuitry for sorting a plurality of packets entered simultaneously according to the destination address; dropping circuitry for, if there are a plurality of competing packets having the same destination address among the packets sorted by the sorting circuitry, keep-ing one of the competing packets and dropping the rest to in-ferior on sorting module; and routing circuitry for routing each packet passed by the dropping circuitry on the basis of the destination address.  The m-sorting modules are so sequentially connected as to make the dropped output of the dropping circuitry of a superior sorting module the input to the sorting circuitry of the immediately inferior sorting module.  Buffer modules tem-porarily store the packets entered from the routing circuitry of the m-sorting modules and supply them to output lines of the packet switching system on a first-in first-out basis, each buffer module being connected to an output line corresponding to the destination address.  The plurality of packets are entered into the highest-positioned sorting module, non-competing packets are distributed from the highest-positioned sorting module to the buffer modules corresponding to the output lines indicated by the destination addresses, and k-competing packets are entered into the same buffer module with prescribed delays in a sequence from the highest-positioned sorting module to the k-th sorting module.
Patent CA-2014507-A1 (CA)
Inventor: WATTS ARUN
IPC: C08G18/10
Filed: 1990-04-12
Abstract: The invention relates to a liquid isocyanate-containing prepolymer composition having an average isocyanate functionality greater than 2 and an NCO content of from 2 to 15 % by weight, as obtainable by reacting an isocyanate reactive polymer having an average nominal functionality of from 2 to 6 with a stoichiometric excess of a diphenylmethane diisocyanate composition containing at least 2 % by weight of 2,4'-diphenylmethane diisocyanate and having an average isocyanate functionality in the range from 2 to 2.3. The invention also relates to a method for preparing a polyurethane foam, which comprises reacting such a prepolymer composition with water.
Patent CA-2016757-A1 (CA)
Title: Production of flavored coating on an edible product
Inventor: BLANTHORN MICHELE
IPC: A23L25/00
Filed: 1990-05-14
Abstract: PRODUCTION OF FLAVORED COATING ON AN EDIBLE PRODUCT     ABSTRACT OF THE DISCLOSURE     An  edible product (e.g., a nut, such as a roasted blanched peanut)  is  enrobed  in a flavored coating by first applying a layer  of  a liquid coating comprising an aqueous solution of a water-soluble    edible    adhesive    optionally    containing flavoring.   Next, a dusting of a dry powder mixture comprising flour,  starch,  and  flavoring is applied until the product is dry  to  the  touch.   These two steps are repeated in the same sequence  until  the  desired thickness of coating is obtained.          The  resulting  coated  product is then cooked, e.g., by frying in vegetable oil or baking.
Patent CA-2017890-A1 (CA)
Title: A pull-out guide assembly for drawers or the like
Inventor: ROCK ERICH
IPC: A47B88/04
Filed: 1990-05-30
Abstract: Abstract A pull-out guide assembly for drawers having on each side of the drawer a pull-out guide (8) on the side of the drawer and a supporting rail (4) on the side of the body. Rollers are arranged between the running flanges of the rails (4,8). A locking device for the drawer is provided. The running flanges (15) of the supporting rails (4) are inclined downwardly towards the rear.          Thus, the drawer is in the extreme front position of the extracting path acted upon in the closing direction by a horizontal force component. At the same time, the drawer is held by the locking device.
Patent CA-2018164-A1 (CA)
Title: Use of the site-specific integrating function of phage oc31
Inventor: COX KAREN L
IPC: C12R1/465
Filed: 1990-06-04
Abstract: Abstract The present invention provides a method for transforming an actinomycete with an integrating vector which has the advantages of high transformation rates into a broad host range, site-specific integration, and stable maintenance without antibiotic selection.  Also provided are methods for the increased production of antibiotics and for the production of hybrid anti-biotics.
Patent CA-2021702-A1 (CA)
Title: Improved process for recovering hydrocarbons from air-hydrocarbon vapor mixtures
Inventor: DINSMORE HAROLD L
IPC: B01D53/047
Filed: 1990-07-20
Abstract: An   improved   process   for   recovering hydrocarbons from an air-hydrocarbon vapor mixture such as the mixture of air and vaporized light hydrocarbon compounds expelled as a result of loading gasoline, benzene or the like into storage tanks and tank trucks.  The air-hydrocarbon vapor mixture is caused to flow through a bed of solid adsorbent whereby the hydrocarbons are removed from the mixture and a residue gas stream comprised of  substantially hydrocarbon-free  air  is  produced.     The  substantially hydrocarbon-free  air  is  vented  to  the  atmosphere  and  a second bed of solid adsorbent having hydrocarbons adsorbed thereon is subjected to conditions which cause desorption of the hydrocarbons and thereby regeneration of the bed.  The regeneration of the bed is accomplished by evacuating the bed by means of liquid seal pump vacuum pumping whereby a major portion of the hydrocarbons are desorbed therefrom and subsequently subjecting  the bed  to  further  evacuation by both positive displacement booster pump vacuum pumping and by liquid seal pump vacuum pumping whereby additional hydrocarbons are desorbed therefrom.
Patent CA-2024565-A1 (CA)
Inventor: NG BILL
IPC: B62D43/04
Filed: 1990-09-04
Abstract: A take-up reel is provided suitable for use in a carrier-lifting device, the take-up reel for taking up cable as a coil and comprises a pair of plates, a central hub carrying an outer peripheral surface about which a cable may be wound. The central hub may also carry a recess in the hub.   An anchor secures one end of the cable between the plates and presents an abutment and locking surface.   A cable follower is pivotally biased to engage the outer surface of the coil of cable being taken-up and let out from the take-up reel.  The cable follower is  adapted to  abut  an abutment  when  the  cable  has  been substantially let out (played out) to preclude further rotation of the take-up reel.         In one embodiment, the take-up reel comprises a pair of spaced parallel plates, one plate carrying an integrally formed  (stamped)   raised  cylindrical  hub  comprising  a cylindrically rounded circular peripheral edge remote from plate and the second plate carrying a recess of substantially the same inner diameter as the circular peripheral edge,  the recess defined by a circular wall extending away from the plane of the plate in a direction away from the other plate, the circular wall of the recess having a depth less than the distance from the circular peripheral edge of the cylindrical hub to the plate to which the hub is secured, the end of the wall defining the recess remote from the plate in which the recess is disposed being rounded to mate with the rounded circular peripheral edge of the hub.         A torque limiter is also provided employing a spring plate and parallel  oriented clutch plate  in  face to  face indentations  (or  depressions)  and gaps  for  receiving  the indentations (or depressions) when the torque limiter transfers torque  from  the  spring  plate  to the  clutch  plate,  the indentations extending towards the gaps and riding in the gaps when torque is transferred from the spring plate to the clutch plate and for exiting from the gaps when the torque cannot be transferred to the clutch plate.         The connection between the take-up reel and torque limiter is effected by a special pin construction to ensure maximum torque transfer to the reel from the torque limiter.
Patent CA-2025559-A1 (CA)
Title: Liquid jet recording head and liquid jet recording apparatus having same
Inventor: IZUMIDA MASAAKI
IPC: B41J2/14
Filed: 1990-09-17
Abstract: A liquid jet recording head (400) includes a heat generating element (408); a heat acting zone (406) in which heat generated by the heat generating device acts on liquid; a liquid feeding passage (405) adjacent to the heat acting zone having a liquid supply opening for supplying liquid to the heat acting zone (406); a liquid ejection passage (407) adjacent the heat acting zone and having an orifice (402) through which the liquid is ejected; wherein a center line (410) passing through the center of the liquid supply opening along a direction of the liquid supply from the liquid supply passage to the heat acting zone is directly across a wall constituting the liquid ejection passage.
Patent CA-2027671-A1 (CA)
Title: Improved surgical needle configuration with star-shaped cross-section
Inventor: MCGREGOR WALTER
IPC: A61B17/06
Filed: 1990-10-15
Abstract: A needle having ten edges, forming a star-shaped cross-section. The needle also presents a tapered end.      With reduced cross-sectional area, the improved needle results in easier tissue penetration, better wound opening area performance. and minimized tissue distortion. In an alternate embodiment, wound opening is further reduced by creating an eight-sided, star-shaped needle cross-section.
Patent CA-2027730-A1 (CA)
Title: Process for the dyeing of leather
Inventor: MENNICKE WINFRIED
IPC: D06P1/642
Filed: 1990-10-16
Abstract: Abstract To improve the affinity of anionic dyestuffs in the dyeing of leather materials, polycondensation pro-ducts consisting of at least one amine of the formula                         (I)    (II)                         (III) in which the radicals have the meanings mentioned in the description with one dicarboxylic acid and, if desired, .omega.-aminocarboxylic acid or its lactam are highly suitable.            Le A 27 251 -US