baber/WOPTO huggingface dataset:
Patent CA-2022161-C (CA)
Inventor: HISAEDA MASANOBU
IPC: B28B13/06
Filed: 1990-07-27
Granted: 1994-03-29
Abstract: Abstract A pressure slip casing apparatus for producing a sanitary ware such as a toilet bowl, comprises lifting hydraulic cylinder means secured to said top member of a stationary frame; a pair of suspending devices supported by a base plate attached to said lifting hydraulic cylinder means; an interlocking mechanism for operatively connecting said suspending devices to each other;and a hydraulic cylinder device for moving a suspending devices towards and away from each other through the action of said interlocking mechanism.  A mold part and a core mold part are attached to said base of said stationary frame and to the lower surface of said base plate, respectively. Side mold parts are suspended by said suspending devices so as to be brought and aligned together when said suspending devices are moved towards each other, and said core mold part and said side mold parts in assembled state are adapted to be lowered by said lifting hydraulic cylinder means so that said side mold parts and said core mold parts are sequentially assembled with said bottom mold part and then clamped therewith. The apparatus further comprises clamping devices provided on said posts and capable of clamping said side mold parts to each other subsequent to the clamping operation performed by said lifting hydraulic cylinder means.
Patent CA-2022430-C (CA)
Inventor: VIELER GERD
IPC: F16B7/04
Filed: 1990-07-31
Granted: 1999-06-29
Abstract: A connector which can separably couple a hollow first profiled member with a channeled second profiled member has an open-ended housing for a reciprocable clawed coupling member and an eccentric which is rotatable to move the coupling member between extended and retracted positions.  The coupling member has a front projection which can be pushed by a disc of the eccentric to move the coupling member to extended position in which the claw or claws of the coupling member can enter a channel of the second profiled member.  The coupling member further includes a rear projection which can be pushed by the disc to move the coupling member to the retracted position in which the claw or claws bear against an internal surface of the second profiled member and urge an outer side of the second profiled member against the adjacent end of the first profiled member. The rear projection is part of a looped rear end portion of the substantially plate like coupling member.  The rear end portion can form a U-shaped loop or a complete loop.
Patent CA-2043763-C (CA)
Title: Enantiomerically selective biocatalyzed acylation
Inventor: LEVY JEFFREY NEAL
IPC: C07D405/06
Filed: 1991-06-03
Granted: 2001-05-15
Abstract: An enantiomerically selective process for acylating racemic 3-amino azetidinone intermediates is provided using penicillin G amidase(acylase) as biocatalyst.
Patent CA-2044466-C (CA)
Title: Deinking process
Inventor: GALLAND GERARD
IPC: D21C9/16
Filed: 1991-06-13
Granted: 2001-01-16
Abstract: Process for deinking printed wastepaper, in which:  - the said paper is converted into a pasty suspension; - the ink is then removed from this suspension in two distinct and successive stages I and II, each followed by a thickening stage; - lastly, the pulp deinked in this manner is conveyed to the circuit utilising the pulp,  characterised: - in that the first stage I, during which a deinking (1) of the pasty suspension is performed, followed by a first removal of the ink (3) and a thickening (5) of the partially deinked pulp, is performed in a neutral or slightly acidic medium; - and in that the second stage II, in which the pulp (7) thus thickened is recovered in a mixer (8) and a second removal (10) of the residual ink and a new thickening (12) are then performed, is carried out in alkaline medium by adding alkaline reactants to the mixer (8). <IMAGE>
Patent CA-2044473-C (CA)
Title: Sweep in thermal eor using emulsions
Inventor: CHAKRABARTY TAPANTOSH
IPC: E21B43/24
Filed: 1991-06-13
Granted: 2002-09-17
Abstract: Water-in-oil emulsions are injected into subterranean formations to divert steam from steam-swept zones around cyclic steam stimulation wells or between injection and production wells in steam floods.      The emulsions divert hot fluids to cold unswept zones containing high oil saturations, thereby increasing the net oil recovery.
Patent CA-2044550-C (CA)
Title: Method for the biological preparation of hydroxyvitamin d compounds
Inventor: TAKEDA KOJI
IPC: C12R1/01
Filed: 1991-06-13
Granted: 2000-09-26
Abstract: A method for introducing hydroxyl groups into vitamin D compound at the 1.alpha.- and/or 25-positions in the presence of a cyclodextrin compound by the use of a reaction mixture containing a microorganism being capable of hydroxylating vitamin D compound or a enzyme produced from the microorganism, is disclosed.
Patent CA-2044584-C (CA)
Inventor: EDVARDSSON KURT OLOV
IPC: F17C13/02
Filed: 1990-01-11
Granted: 1996-06-25
Abstract: A device for gauging the level of a fluid in a container with a microwave signal is described.  The device comprises a vertical tube (1) mounted in the container, and a transmitter and a receiver and an electronic unit for determining the level based on the reflex position of the microwave signal. The device is characterized particularly by a calibration device in the form of a polarization means (6,7) for polarizing the microwave signal in two polarization planes separated from each other and at least one reflecting reactance (10) in the tube (1) arranged to give a substantially stronger reflex of the microwave signal in the first polarization plane than in the second.
Patent CA-2050420-C (CA)
Title: Device for selecting received signals according to their strength
Inventor: ABDESSELEM OUELID
IPC: H04W48/12
Filed: 1991-08-30
Granted: 2000-01-11
Abstract: The present invention relates to a device for selecting reception signals according to their power, these signals being identified by their frequency. The reception signals are structured into frames composed of a number p of time intervals. The device comprises means of analysis provided in order, in the course of repetitive analysis periods, to successively select at least one time interval of sounded signals chosen from the reception signals in a specified order, the frequency of appearance of these selected time intervals corresponding to a number r of time intervals, also comprises power measuring means for producing the power of each of the sounded signals from measurements made on several selected time intervals corresponding to them, classifying means for producing the identity of the signals selected as the sounded signals which exhibit the highest power, and also comprises means in order that the selected time interval of the first sounded signal with an analysis period of rank less than or equal to p occupies a position in the frame different to those which it occupied during the preceding analysis periods.
Patent CA-2050749-C (CA)
Inventor: MENENDEZ EVELIN C
IPC: A61P31/04
Filed: 1991-09-05
Granted: 2002-07-02
Abstract: The present invention is concerned with a method for the isolation of a nucleotide sequence which codes for a protein having a molecular weight of about 64 000 daltons, which is located on the outer membrane of N. meningitidis, as well as with the recombinant DNA obtained therefrom, which is used for the transformation of a host microorganism. The technical object pursued with the invention is the identification of a nucleotide sequence coding for a highly conserved and common protein for the majority of pathogenic Neisseria strains, the production of this protein with a high level of purity and in commercially useful amounts using the recombinant way, so that it can be used in diagnostic methods and vaccine preparations with a broad immunoprotection spectrum.
Patent CA-2054251-C (CA)
Inventor: HOOYKAAS CAREL WILLEM JAN
IPC: C04B18/18
Filed: 1991-10-25
Granted: 1996-04-02
Abstract: A fixant is disclosed for fixing toxic organic compounds comprised in waste material comprising an inorganic binder based on calcium compounds mixed with an alumino silicate, and at least one metal sulfate which fixes said organic compounds and counteracts leaching, is disclosed. Preferably a combination of  several metal sulfates, especially aluminium sulfate, manganese sulfate and ferric sulfate is used. Moreover, the fixant preferably comprises anorgano-clay compound, in particular a bentonite, a montmorillonite and a hectorite. The disclosure further describes a process of treating waste materialcomprising toxic organic compounds by mixing said waste material with said fixant, as well as a matrix formed from at least a set inorganic binder based ona cement and a silicate with environmentally harmful organic compounds containing waste material encapsulated therein, said matrix also comprising at least one metal sulfate which fixes said organic compounds and counteracts leaching is disclosed.
Patent CA-2059226-C (CA)
Title: Light beam detection apparatus
Inventor: TETRAULT JACQUES
IPC: G01V8/12
Filed: 1992-01-13
Granted: 2002-07-09
Abstract: A light beam interrupt detection apparatus for use in a vibrating environment comprises a light source for producing a beam of light, a light receiver for receiving and detecting the beam, the receiver having a detector surface sufficiently larger than the beam such that the beam strikes the detector surface as the beam moves during vibrations, and the receiver producing an output signal which is substantially constant when the beam moves over the detector surface without the beam being broken, the output signal to be fed to a signal processor for detecting an interrupt of the beam by an object. The apparatus may be used on a mechanical loom, and the signal processor may detect a variation in the output signal caused by a partial interrupt of the beam, the object being a thread of the loom which is so dimensioned as to block only a part of the beam the thread passes through the beam.
Patent CA-2060923-C (CA)
Inventor: MUKAWA HIROSHI
IPC: G11B7/24
Filed: 1992-02-10
Granted: 2002-07-16
Abstract: A recording disc for information signals includes a disc substrate carrying a signal recording section on at least its one surface, a positioning reference plane at a central region of one of surfaces of the disc substrate, and an upright wall portion for integrally connecting the reference plane to the signal recording section. A chucking device for chucking the recording disc to a disc rotating unit includes a disc table having a disc setting portion and integrally mounted on a rotating shaft of a spindle motor, a centering member reciprocably mounted on the disc table and abutted against an inner surface of the reference plane of the recording disc for centering the recording disc, and a magnet mounted at the foremost part of the disc setting unit inwardly of the centering member and adapted for attracting a magnetic plate provided on the recording disc set on the disc table.
Patent CA-2071406-C (CA)
Title: Pump redundancy for optical amplifiers
Inventor: BERGANO NEAL SALVATORE
IPC: G02F1/35
Filed: 1992-06-17
Granted: 1997-01-14
Abstract: Currently laser diode pump redundancy for an optical fiber amplifier is obtained by selectively connecting one of two diode pumps to an optical amplifier via an optical switch.  When the diode laser pump which is connected to the amplifier becomes defective, the optical switch is activated, either remotely orautomatically, and the good laser diode is substituted for the defective laser diode pump.  In another arrangement, two laser diodes are coupled to an optical fiber amplifier via a polarization-dependent optical coupler.  In each instance, a second laser diode is required to provide pump redundancy for an optical fiber amplifier. In this invention, at least, two laser diodes are coupled via a 3dB optical coupler to supply pump power to each of the two optical fiber amplifiers simultaneously.  If one of the laser diode pumps fails, the other laser diode pump is issued to provide pump power to each of the optical fiber amplifiers. Thus, with the addition of a 3dB coupler, pump redundancy for a pair of optical fiber amplifiers is obtained with only two laser diode pumps instead of the normally required four laser diode pumps. In practice, only one of the two pumps can be active, and the otherturned on only when the first pump fails. In another embodiment, the two laser diode pumps can be active at all times where each laser diode pump is operated at either full or less than full power. In the arrangement where the laser diode pumps are operated simultaneously at less than full power, when a pump failure occurs the power output of the good laser diode pump can be increased to compensate for theloss of power from the defective pump.
Patent CA-2071976-C (CA)
Inventor: NELSON JAMES C III
IPC: H02P7/29
Filed: 1990-12-14
Granted: 1999-09-28
Abstract: A solid state DC power control circuit to efficiently use DC battery power without the normally associated energy was~ which includes an input control signal filtering, amplifying, and conditioning circuit (133), a triangular waveform generator circuit (131), a comparator circuit (135), an inverting MOSFET (metal oxide semiconductor field effect transistor) circuit (137), and a plurality of power MOSFET devices (42), which together combine to translate a typical variable resistance control input into voltage level and condition it suitably to be compared with a known triangular waveform thereby creating a pulse width modulated signal whose pulses widths correspond in duration to the relative percent "on"  or "off" of the control input signal and which regulates a plurality of parallel MOSFET devices (42) which together share the load of an external DC motor circuit (143).
Patent CA-2073342-C (CA)
Title: Transmetalations from zirconium to copper intermediates
Inventor: LIPSHUTZ BRUCE HOWARD
IPC: C07C405/00
Filed: 1991-04-01
Granted: 2001-08-07
Abstract: Higher order cuprate complexes are prepared by means of a transmetalation from a corresponding zirconate intermediate. This process is particularly valuable with respect to the preparation of vinylic side chains such as are present in prostaglandins, as it is possible in accordance with the present invention to proceed directly from the acetylenic precursors via the reactive cuprates to the desired final products in a one-pot operation without isolation of intermediates and in high yields. Sequential additions to zirconium intermediates of components which together comprise the cuprate involved in transmetalation with the zirconium inter-mediate are disclosed as alternative procedures.
Patent CA-2079320-C (CA)
Title: Direct digital synthesizer driven phase lock loop frequency synthesizer with hard limiter
Inventor: GILMORE ROBERT P
IPC: H03L7/183
Filed: 1990-10-22
Granted: 2000-09-19
Abstract: A frequency synthesizer (100, 200) using a direct digital synthesizer (DDS) (102, 216) whose output signal is filtered by a bandpass filter (110, 218) and may be amplitude limited by a limiter (111, 219) to reduce spurious noise. In one embodiment, the DDS (102) is coupled to a phase lock loop (114) which receives the DDS  generated reference signal and a divide-by-N signal for generating an output frequency determined by the divide-by-N signal. In a second embodiment, the DDS (216) is incorporated within the feedback path of a phase lock loop (202) having an output frequency determined by an input reference frequency and the DDS step size controlled by a frequency control signal. Optional dividers (112, 214, 219) may be provided in either embodiment in the feedback path to further affect the synthesizer (100, 200) output frequency,
Patent CA-2090757-C (CA)
Title: Automate programmable pour le traitement des eaux usees et selon un regime progressif
Inventor: TICCIONI JAMES E
IPC: B01J49/00
Filed: 1992-06-19
Granted: 1999-01-12
Abstract: Contrôleur électronique programmable pour le traitement des eaux usées, à déclencheur et séquenceur intégrés, commandant la régénération de systèmes d'adoucissement et de filtrage d'eau. Le contrôleur, ou le(s) dispositif(s) externe(s) associé(s), déclenche soit la séquence de régénération, soit une alarme dépendant d'un délai programmable, du volume total d'eaux à traiter ou de combinaisons de ces deux facteurs. La séquence de régénération est commandée en réponse à des paramètres choisis, programmables par l'utilisateur, pour le fonctionnement en temps opportun d'éléments de robinetterie. De multiples systèmes de traitement d'eau peuvent être commandés suivant des mécanismes de commande alternants, parallèles ou progressifs grâce à la communication entre contrôleurs, fixés à chaque système, conformes à la présente invention.
Patent CA-2099816-C (CA)
Title: High throughput, low cost, non-impact printing
Inventor: DOANE I GERALD
IPC: B43M5/04
Filed: 1993-07-05
Granted: 2004-03-16
Abstract: A method and apparatus are capable of producing sealed mailers from sheets of paper at speeds in excess of 200 documents per minute (e.g. 400 documents per minute or more) in an inexpensive manner, including by variably non-impact duplex printing the faces of each sheet with up to thirty six lines of variable data with each line up to ten inches long. The sheets are fed one at a time from a stack and then immediately aligned. Immediately after alignment the first face of each sheet is ink jet printed with variable data, the sheets are inverted and then immediately the second face of each sheet is ink jet print with variable data. The printed sheets are immediately folded, and if they have adhesive (such as pressure activated adhesive) they are immediately sealed. They may then be sorted, stacked, and tied into bundles. Control of all of the operations is provided by a central computer control which ensures that the processing speed is consistent throughout. The method is particularly suited for producing simple mailer type business forms such as 1099 forms, statements, notices, and advertisements.
Patent CA-2103572-C (CA)
Inventor: DE BEUCKELEER MARC
IPC: C12N15/82
Filed: 1992-02-05
Granted: 2006-10-03
Abstract: The present invention relates to male flower specific cDNA sequences isolated from corn and stamen-specific promoter sequences of genes corresponding to such cDNA sequences. The invention further describes how the promoters of the invention can be used to direct expression of DNA sequences, such as for instance, a male-sterility DNA in plants, so as to obtain male-sterile plants.
Patent CA-2103699-C (CA)
Inventor: HUCSKO JOHN
IPC: F24H1/40
Filed: 1993-08-06
Granted: 1996-04-02
Abstract: A manifold for a heat exchanger including a plurality of substantially identical heating tubes.  The manifold has front and rear walls.  The rear wall has therein a plurality of inlet ports, each of which is adapted to be connected to the outlet of one of the heating tubes, the inlet ports being generally equally spaced along the rear wall in the upper half of the manifold.   The rear wall also has therein a plurality of outlet ports, each of which is adapted to be connected to the inlet of one of the heating tubes, the outlet ports being generally equally spaced along the rear wall in the lower half of the manifold.  The front wall has therein a water inlet opening into both the upper manifold half and the lower manifold half, and a water outlet spaced horizontally from the water inlet and opening into both the upper manifold half and the lower manifold half.  The manifold also includes an involuted web which extends between the front and rear walls, which is attached to the front wall above the water inlet and below the water outlet so as to separate the inlet and the outlet, and which is attached to the rear wall along a horizontal line separating the inlet and outlet ports so that water entering through the water inlet communicates only with the outlet ports and water entering through the inlet ports communicates only with the water outlet.
Patent CA-2104455-C (CA)
Inventor: JAHROMI FAZLOLLAH ROOHIZADEGAN
IPC: H04J3/08
Filed: 1992-12-21
Granted: 2002-09-17
Abstract: Digital cross-connection apparatus is disclosed for use in interconnecting first and second communications network (STM-N) having respective first and second pluralities of data channels, information data and communications management data of the channels in each network being multiplexed together therein.      The apparatus comprises an add/drop unit (TTF, TSAF, LCS), connected to the said first network (STM-N) and operable selectively to extract therefrom the data of a selected channel of the said first plurality, and a digital switching matrix (LPX) having an output connected to the said second network (STM-n) and having an input connected to the said add/drop unit (TTF, TSAF, LCS) for receiving therefrom such extracted data including management data from the said first network, whereby such management data can pass through the said switching matrix (LPX) to the said second network so that end-to-end path monitoring between the two networks is facilitated.        Such apparatus may be advantageously used in interconnecting two optical ring networks, for example, which, as in the case of Synchronous Digital Hierarchy (SDH) networks, it is desired to maintain path continuity from a node of the first network to a node of the second network.
Patent CA-2106261-C (CA)
Title: Measurement of steam quality and mass flow rate
Inventor: REDUS CLIFFORD LEE
IPC: G01F7/00
Filed: 1993-09-15
Granted: 2003-10-14
Abstract: Apparatus and method for concurrently determining steam flow rate and quality, through a conduit which comprises an orifice plate positioned in series with a critical flow venturi in said conduit. Pressure sensing means in the conduit senses pressures therein for application in a formula to provide the desired steam values and provide a method for determining both the quality and the mass flow rate of steam flow passing through the conduit. The measurements are of particular value in the instance of steam flow where a minimal decrease in steam pressure across the measuring instrument is a relevant factor.
Patent CA-2110099-C (CA)
Title: Pigments whose color depends on the viewing angle, their preparation and use
Inventor: MUELLER-REES CHRISTOPH
IPC: C08G77/38
Filed: 1993-11-26
Granted: 1997-02-04
Abstract: The invention relates to pigments whose color depends on the viewing angle, their preparation and use.    These pigments comprise oriented three-dimensionally cross-linked substances of liquid-crystalline structure having a chiral phase and, if desired, further dyes and pigments, the further dyes and pigments if present not serving as base for the oriented three-dimensionally crosslinked liquid-crystalline substances having a chiral phase.
Patent CA-2112202-C (CA)
Title: Alarm initiated remote reporting system with modular elevator control equipment
Inventor: KETOVIITA SEPPO
IPC: B66B3/00
Filed: 1993-12-22
Granted: 1997-07-01
Abstract: A system for regional and local supervision and monitoring of elevator equipment consists of a modular system having a set of service centre equipment, and at least one set of on-site equipment installed in connection with an elevator in a building. Communication between these sets of equipment is implemented using a remote communication link. A connection from an elevator car to a service centre and from a service centre to an elevator car is provided through the on-site equipment. A connection between an elevator car and a preselected service point can also be established by the on-site equipment.