baber/WOPTO huggingface dataset:
Patent AU-757084-C (AU)
Title: Transfer of shear-thinning slurries
Inventor: PARADIS RONALD
IPC: B01D21/24
Filed: 2000-03-15
Granted: 2004-06-24
Abstract: A method of and apparatus for removing a slurry having shear-thinning visco-plastic rheological properties from a reservoir containing a body of the slurry of such high viscosity that removal is impractical by conventional means, such as gravity flow or suction. The method comprises creating a flow of shear-thinned slurry in a submerged region of the body of slurry to entrain adjacent slurry of high viscosity, and then transferring some of the reduced viscosity slurry from the reservoir. The flow of shear-thinned slurry may be produced by withdrawing slurry from an outlet point in a region of the body of slurry to create a flow of withdrawn slurry, subjecting the flow of withdrawn slurry to shear conditions to form a withdrawn slurry of reduced apparent viscosity, and introducing the withdrawn slurry of reduced apparent viscosity into the region of the body at an inlet point therein spaced from the outlet point, the inlet and outlet points in the region being positioned relative to each other to create a flow or stream of slurry of reduced apparent viscosity through the region carrying therewith slurry of higher viscosity, and removing some of the slurry withdrawn from the region permanently from the reservoir. The apparatus provides conduits and a shear-generating device communicating with the reservoir and an outlet conduit for slurry permanently withdrawn from the reservoir.
Patent AU-735371-C (AU)
Title: Novel phytase
Inventor: KRETZ KEITH
IPC: A23K1/165
Filed: 1998-08-13
Granted: 2006-03-02
Abstract: The invention provides a purified phytate enzyme derived from  Escherichia coli  B. The enzyme has a molecular weight of about 47.1 kilodaltons and has phytase activity (SEQ ID NO:2). The enzyme can be produced from native or recombinant host cells and can be used to aid in the digestion of phytate where desired. In particular, the phytase of the present invention can be used in animal feed.
Patent CA-2000867-C (CA)
Inventor: STENDERUP OLE
IPC: F24D3/00
Filed: 1989-10-17
Granted: 1999-01-12
Abstract: In a method of setting the mean value of the supply temperature (T V) of  a  heating  medium  which  is  intermittently  heated  by  a  heating apparatus (5) in a heating system comprising at least one adjustable throttling point (16, 17, 18) for the heating medium, a desired supply temperature value (T S) is determined on the basis of external influencing factors (H,  T external)  and the heating medium is heated  to  the desired supply temperature value (T S) with the throttling points (16, 17, 18) fully open.  The mean value of the supply temperature is to be controlled to such a value that an optimum total throughflow rate of the heating medium is achieved, i.e.  the throttling points formed by thermostatic.  radiator  valves are  to be  partially open.   For  this purpose,  a starting function is determined with which the  temporary temperature (T V) changes during heating,  at least one parameter (C m) of this starting function is changed to fix a desired function, and the desired supply temperature value T F is changed until the course of heating has matched the desired function in each heating-up phase.
Patent CA-2000973-C (CA)
Title: Method for manufacture of jelly gum confections
Inventor: CHIU CHUNG-WAI
IPC: A23L29/20
Filed: 1989-10-18
Granted: 1996-03-12
Abstract: This invention provides an improved method for manufacture of jelly gum confections utilizing   conventional confectionery formulations containing starch which has been debranched by treatment with an endo-alpha-1,6-D-glucanohydrolase to provide lower hot viscosity and improved set time, processing conditions and gel quality.  The method comprises the steps of debranching the starch, blending the debranched starch with sweetener(s), water and other confectionery ingredients, heating the mixture to gelatinize the starch, and forming the confections.  This invention also provides confections manufactured by this method.
Patent CA-2005438-C (CA)
Inventor: NAYAR BIMAL KUMAR
IPC: G02F3/00
Filed: 1989-12-13
Granted: 1995-09-12
Abstract: An optical fibre,  loop interferometer (31) is formed from germania doped silica which exhibits Raman scattering at a threshold intensity to provide a transmitted optical signal from port (49) of coupler (35) whose intensity is a sigmoid  function of the intensity of an optical  signal input  at  port  (39).   It  finds  application  in  optical switching and logic operations on optical pulses.
Patent CA-2007975-C (CA)
Title: Calender, in particular a supercalender
Inventor: HONKALA JUHA
IPC: D21G1/00
Filed: 1990-01-17
Granted: 1995-05-23
Abstract: The invention concerns a calender, in particular a supercalender, on whose frame (1) a set of rolls (2) is mounted, which comprises an upper roll (3), a lower roll (4), and several intermediate rolls (5) placed between the upper roll and the lower roll.  The rolls (3, 4, 5) are supported on the frame (1) by the intermediate structure of the base parts (34, 47, 54) being vertically displaceable along guides (7) provided in the frame.  Of the base parts, at least the base parts (54) of the intermediate rolls can be positioned in the vertical direction by means of lifting spindles (6) provided in the frame (1) and by means of spindle nuts (56) provided on the spindle.  The base parts (54) of the intermediate rolls are supported on the lifting spindles (6) being vertically displaceable by means of pressure-medium operated relief devices (57) arranged between the base parts (54) and the spindle nuts (56) to reduce the journal loads on the rolls (5).  The bearing housings (51) of the intermediate rolls are attached to the base parts (54) being pivotable relative to an articulation shaft (53) parallel to the axes of the rolls (3, 4, 5) and supported on the base parts (54) by means of attenuation devices (10) to equalize the forces resulting from movements of the nips (N1, N2, N3, N4) between the rolls and to attenuate oscillations of the rolls (5).
Patent CA-2011483-C (CA)
Title: Antenna beam forming system
Inventor: MURPHY TIMOTHY A
IPC: H01Q3/30
Filed: 1990-03-05
Granted: 1994-08-02
Abstract: ABSTRACT      An improved antenna beam forming system 10 for generating a set of directed beams wherein each beam may include carrier signals of more than one frequency is disclosed herein.   The improved beam forming system of the present invention includes   a  first beam forming network 20 for providing a first set of signals.   The first beam forming network 20 includes a plurality of phase shifting elements 22  for providing a first phase relationship among the first set of signals  in response to a first carrier signal of a first frequency.   The system 10 of the present invention further includes a second beam forming network 30 for providing a second set of signals.  The second beam forming network includes a plurality of phase  shifting elements  32  for  again providing the  first phase relationship among the second set of signals  in response to a second carrier signal of a second frequency.  An array of summing elements 40 for summing respective signals of the first and second sets of signals is included to provide a third set of signals. The third set of signals is transmitted by a   phased array antenna 60 thereby providing first and second contemporaneous beams which overlap at a common surface.
Patent CA-2012366-C (CA)
Title: Regulated pressurized dispenser and method
Inventor: REYNER ELLIS M
IPC: B65D83/62
Filed: 1990-03-16
Granted: 1999-11-09
Abstract: A flexible closed plastic pouch disposable within a container holding a product for supplying dispensing pressure therein. A plurality of pocket members disposed at spaced positions within said pouch with their openings facing the interior of the pouch. Each pocket member having an extension of a predetermined length attached at its end to the interior of first of two facing wall members of the pouch. Each pocket member enclosing a predetermined quantity of first component of a two-component gas generation system and being releasably closed by one of a plurality of closure members, each of said closure members having an extension of a predetermined length attached at its end to the interior of the second of the two facing walls of the pouch. The pouch contains a second component of said two-component gas generation system and a starting means encapsulated within delay means or device to initially generate a predetermined quantity of pressurizing gas after a delay of a predetermined period of time. The pressurizing gas inflates and expands the pouch within the container under pressure. Due to the dispensing of the product, the pouch expands further and causes sequential separation of the pocket members from their closure members and serial opening of each pocket member to add predetermined quantities of aliquot of the first component to the second component and further generate additional quantities of pressurizing gas. The internal pressure within the container is maintained substantially within a range of predetermined maximum and minimum pressure levels until dispensing the product from the container is completed.
Patent CA-2015411-C (CA)
Title: Procedure and apparatus for rapid thermal annealing of implanted semiconductors
Inventor: GRIM KAREN A
IPC: H01L21/00
Filed: 1990-04-25
Granted: 1994-03-15
Abstract: Procedure and Apparatus for Rapid Thermal Annealing of Implanted Semiconductors Abstract This invention is directed to the fabrication of semiconductor devices, especially those comprising III-V and II-VI compound semiconductor materials, and involves Rapid Thermal Annealing (RTA) of semiconductor wafers, especially those implanted with a dopant(s). The invention is also concerned with a black-box implement used in combination with the RTA. The process includes enclosing a wafer to be annealed within a "black-box" comprising components of a black body material and subjecting the black box with the wafer therein to an RTA. In a preferred embodiment the RTA comprises (a) a pre-anneal step which includes heating to a temperature and for a period sufficient to preheat the wafer so as to reduce thermal shock due to a main annealing step, (b) the main annealing step being at a temperature and for a period sufficient to remove damage caused to said surface by the dopant implantation and to activate implanted dopant, and (c) a post-anneal step carried out at a temperature and for a period sufficient to relieve stresses which may result from the main-annealing step. The combined use of the RTA and the black box leads to wafers substantially free of slip lines and with reproducibly high mobilities and uniform activation. (FIG. 1)
Patent CA-2024534-C (CA)
Title: Apparatus for providing a universal interface to a process control system
Inventor: BANSAL RAVINDER M
IPC: G05B19/042
Filed: 1990-09-04
Granted: 1996-07-30
Abstract: A  plant control system includes a plant control network for  performing  the  overall  supervision of a process being controlled.  The plant control network has at least one external  bus  for  operatively  connecting  a  corresponding interface  apparatus  to the plant control network.  Further, each interface  apparatus  interfaces  with  at  least  one predetermined  field  device,  each field device being a type having a corresponding predetermined signal type.  The interface  apparatus  comprises  a controller for controlling the  input/output (I/O) of the interface apparatus.  At least one  I/O  module,  connected  to the controller, preprocesses information  signals  to  and  from  the predetermined field device connected to the I/O module.  The preprocessing is a translation  between  the signal type of the field device and signals compatible with the controller.
Patent CA-2030249-C (CA)
Title: Seeder clutch for tramlines
Inventor: LAFFERTY JAMES G
IPC: A01C7/08
Filed: 1990-11-19
Granted: 2002-04-02
Abstract: A clutching mechanism for a seed meter incorporates a spring wrapped clutch for selectively disengaging a seed meter on a seed drill in order to tramline fields for agricultural purposes. A common shaft rotates and dispenses seeds from a series of seed meters on the drill. The spring wrapped clutch of the present invention allows for disengagement of singular meters from the rotational actuation of the common shaft. The seed metering incorporates a rotatable drum which dispenses the seed as it is turned. The drum is attached to a driven element which is further attached to a spring. The spring compressibly holds a driving element attached to the rotatable shaft. A selective engagement of the spring causes a decompression on the driving element and consequently, stops the rotation of the seed drum within the seed meter.
Patent CA-2033773-C (CA)
Title: Sports device
Inventor: RANKIN J CAMERON
IPC: A63F7/00
Filed: 1991-01-08
Granted: 1996-11-26
Abstract: A sports device comprising an elongated support having a handle thereon for gripped engagement by an individual to impart a tilting motion to the elongated support. A removable weight shifting means is mounted at one end of the elongated support for changing the balance point of the elongated support responsive to the tilting motion. A concave track is supported on the elongated support and is provided at its opposite ends with a ramp disposed in inclined relation relative to the track. A ball is provided for placement in the track and is disposed for controlled rolling movement therealong responsive to the tilting motion. A ball ejecting member is mounted at the end of each ramp and each such member includes an angled surface for impact by the ball and ejection thereof from the elongated support responsive to the ball exceeding a predetermined speed as a result of excessive tilting motion of the track. Indicating means are provided for signaling when the elongated support has "safely" been tilted to a predetermined limit (for one round trip of the ball without the ball being ejected) resulting in a score. The indicating means also signals when the predetermined tilt limit has been exceeded resulting in a "foul". In an alternative arrangement, the ball is controlled to drop through a hole in an inclined track for "bombarding" a target located below the hole for a "score". A "foul" is indicated when the tilting motion exceeds a predetermined limit as discussed above.
Patent CA-2034007-C (CA)
Inventor: KAKU TAKASHI
IPC: H04L27/38
Filed: 1990-06-13
Granted: 1997-09-09
Abstract: In a modulator-demodulator device, there are provided, in the transmitter side (1), error control coding means (16) for adding redundancy according to a predetermined procedure to a bit sequence to be transmitted from bit processing means (10) and coding the bit sequence; data sequence to coordinate transforming means (18) for transforming the bit sequence from the error control coding means into the coordinate of a signal point on a complex plane; and coordinate rotating means (20) for rotating the transformed signal point coordinates based on the frame phase information from the frame phase generating means (28); and, in the receiver side, coordinate rotating means (34) for applying the rotation in the reverse direction of that of the coordinate rotating means (10) of the transmitter side based on the frame phase information from the frame phase generating means (28); and the second deciding means (38) for deciding the maximum likelihood signal point by utilizing the redundancy added by the error control coding means (16) of the transmitter side and correcting the coordinate error of the received signal point; and unsynchronized frame state deciding means (40) for deciding the unsynchronized frame state based on the distance between the decision point determined by the maximum likelihood signal point deciding means and the demodulated received signal point on the complex plane; whereby the synchronized frame state is quickly detected.  In the modulator-demodulator device, an evaluation value is designated for each of the transition sequence of signals, and in the receiver side, an error control signal decoding is carried out in the manner that the transition sequence of the maximum likelihood received signal is selected based on the updated evaluation value and the error in the demodulated signal is corrected, whereby the error in the data transmission is corrected (Figure 1 adopted).
Patent CA-2035391-C (CA)
Title: Call status recognition in a broadband private automatic branch exchange
Inventor: FISCHER OLIVER
IPC: H04Q11/04
Filed: 1991-01-31
Granted: 1994-02-15
Abstract: Abstract Call Status Recognition in a Broadband Private Automatic Branch Exchange In a broadband private automatic branch exchange (BB-PABX) in which a plurality of broadband terminals (BB-E1, ..., BB-E26) are connected to a broadband switching array (BB-V) to switch video and data signals, the current call status of the system must be signaled to the terminals, so that a broadband connection may be activated   For this purpose, a message characterizing a quiescent state is supplied to one input/output (0) of the broadband switching array (BB-V) of the private automatic branch exchange and all nonswitched input/output (1, 2, ..., 30) controlled by an associated control unit (C) are linked with the first input/output (0) so that the quiescent state message is always transmitted to all nonswitched terminals
Patent CA-2040159-C (CA)
Title: Arrangement for closing the top of a soderberganode in an electrolytic aluminium reduction cell
Inventor: OLSEN ARNT T
IPC: C25C3/08
Filed: 1991-04-10
Granted: 1998-09-22
Abstract: The present invention relates to an arrangement for closing the top of a S~derberganode used in an electrolytic cell for production of aluminium. The anode comprises an anode casing and vertical contact bolts for holding and for conducting electric current to the anode. The top of the anode is closed by means of at least one central cover having openings for the contact bolts and at least one side cover which can be opened in order to charge anode paste to the anode.
Patent CA-2042182-C (CA)
Title: Spring biased test tube holder
Inventor: MAWHIRT JAMES A
IPC: B25J15/00
Filed: 1991-05-09
Granted: 1999-06-29
Abstract: The test tube holder includes an elongated tubular member which supports a pivot member and receives a removable adapter member.  The adapter member accommodates a test tube and can be interchanged with another adapter member that accommodates a different size test tube.          Biasing springs are provided in the adapter member to hold the test tube therein.  The biasing force of the biasing springs against the test tube is predetermined to permit easy insertion and removal of the test tube from the adapter member.  The test tube holder which includes the adapter member can be joined to other similar test tube holders in a manner which permits relative pivoting and tilting of one test tube holder with respect to another test tube holder.          The test tube holder further includes a detent arrangement for inseparably detenting the adapter member in the tubular member when a test tube is present in the tubular member. Removal of the test tube from the test tube holder enables the adapter member to be separated from the tubular member.
Patent CA-2043094-C (CA)
Title: Cement based compositions having elastomeric properties, and method of manufacture
Inventor: VECCHIO ROBERT L
IPC: C04B24/26
Filed: 1991-05-23
Granted: 1997-02-11
Abstract: Elastomeric cement based compositions are provided by adding acrylic polymer. Waterproofing compositions are disclosed that may be utilized on substrates which are subject to vibration and deflection, and are capable of recovering from deformation resulting from an elongation of greater than 100 percent.  The elastomeric cement based waterproofing agents of the present invention are particularly suitable for waterproofing substrates, for crack suppression membranes, for tile installation, for floor leveling,  and  for  patching  mortars.    Mortar  and  setting compositions are disclosed that may be utilized on substrates which are subject to vibration and deflection, and are capable of recovering from deformation resulting from an elongation of greater than 30 percent. The elastomeric cement based mortars and grouts of the present invention are particularly suitable for setting and grouting tiles, for crack suppression membranes, for tile installation,  for stuccos,  for floor leveling,  and for patching mortars.
Patent CA-2045074-C (CA)
Title: Subtractive color hot melt ink reflection images on opaque substrates
Inventor: HOISINGTON PAUL A
IPC: G01D15/16
Filed: 1991-06-20
Granted: 1996-07-23
Abstract: In the particular embodiments of the invention described in the specification, an opaque subtractive color ink reflection print having improved color pu-rity resulting from reduced frosting and crystalliza-tion of the ink layers is prepared by reheating the ink image to a temperature above the melting point of at least one of the inks and then quenching the image by cooling it at a rate of at least 50°C per second. In one embodiment, the ink image is produced by an ink jet head (10) applied to a substrate (14) supported on a platen (15) maintained at least 20°C below the melt-ing point of the inks to inhibit spreading of the inks into the substrate, and the image is thereafter heated by a heater (28) to a temperature at least 20°C above the melting point of at least one of the inks for a period of 3 to 5 seconds and then quenched by a quenching platen (32) at a rate of 500°C per second to produce an image having less than 20% light loss re-sulting from scattering of light by frosting and crys-tallization of the ink in the layers.
Patent CA-2045661-C (CA)
Title: Multichannel optical monitoring system
Inventor: SWOPE CHARLES HERMAS
IPC: G01J3/18
Filed: 1990-11-30
Granted: 2002-03-12
Abstract: A multichannel optical monitoring system for monitoring the spectral transmission of a plurality of samples. A plurality of light beams (16) are generated and a plurality of optical monitoring stations are arranged along a pathway, each station having an optical path formed by one of the light beams transverse to the pathway and along which optical characteristics are monitored. A drive mechanism moves a plurality of reaction wells (7), each containing a reaction volume, along the pathway from station to station so that respective reaction vo-lumes dwell periodically in each optical path for transmitting a respec-tive one on the light beams, a diffraction grating (19) is arranged for dif-fracting the beams transmitted by respective ones of the reaction vo-lumes. The diffracted beams are focussed and at least one array of the photodetectors (23) is positioned for receiving the diffracted and fo-cussed beams for producing electrical signals representing the spectral content of the diffracted beams. An electronic circuit detects the electri-cal signals of the array, which signals may be stored for further process-ing and evaluation.
Patent CA-2047973-C (CA)
Title: Mechanical face seals
Inventor: WICHALL COLIN ARTHUR
IPC: F16J15/34
Filed: 1991-07-26
Granted: 2003-01-28
Abstract: A mechanical face seal includes a first seal face member mounted in fixed axial and rotational relationship and sealed with respect to a housing and a second seal face member mounted in fixed rotational relationship and sealed with respect to a shaft, the second seal face member is movable axially of the shaft towards the first seal face member so that opposed sealing faces of the first and second seal face members are urged into sealing engagement, a passage is provided through one of the seal face members, the passage opening to the sealing face of the seal face member at a point intermediate of the radial extremities of the face engaged by the sealing face of the other seal face member, the passage being connected to an external source of fluid under pressure, sensors being provided for monitoring operating conditions at the interface between the first and second seal face members and control means for adjusting the pressure of fluid delivered via the passage to the sealing faces, to optimise performance of the seal.