baber/WOPTO huggingface dataset:
Patent CA-1282123-C (CA)
Title: Low phase noise rf synthesizer
Inventor: EDWARDS ALLEN P
IPC: H03L7/22
Filed: 1987-01-19
Granted: 1991-03-26
Abstract: ABSTRACT      A low phase noise RF synthesizer comprises three phase-locked loops.  In the preferred embodiment, the base RF signal, 980 to 1520 MHz in 20 MHz steps is generated by one loop, while the high resolution IF signal is generated by a fractional-N loop.  The RF and IF signals are combined in a third phase-locked loop, the output sum loop, to produce the output signal.  A programmable variable divider divides the IF output frequency, achieving coverage over the necessary frequency range by changing the divide number, so the fractional-N circuit only has to fill in the fine steps between the divide numbers.  A reference input  frequency in the fractional-N loop has each of the factors 2, 3, and 5 in its divisor, so that the output signal of the synthesizer can be multiplied by any of these factors without producing a fractional frequency.    It will be appreciated that the advantages achieved by the aspects of the invention incorporated in certain portions of the synthesizer described have independent utility and could be used in a variety of synthesizer designs.  This is particularly true for the variable divider, e.g., divider 191, in the IF reference loop output and for the multi-factor divider, e.g., divider 187, in the IF reference loop input.
Patent CA-1290949-C (CA)
Title: Retaining wall system
Inventor: GLICKMAN MICHAEL N
IPC: E02D17/20
Filed: 1987-01-20
Granted: 1991-10-22
Abstract: RETAINING WALL SYSTEM       ABSTRACT A retaining wall system has a number of units placed on top of the other. The units are constructed to be capable of interengaging one another in a plurality of selected positions so that the angle of the face of the resultingwall to the vertical can be different at different heights. Preferably the uppersurface of each unit is substantially convex and the lower surface of each unit is a substantially complementary concave configuration. The blocks engage complementarily in more than one possible relative position and are shaped to resist being displaced therefrom by lateral forces.
Patent CA-1282691-C (CA)
Inventor: GENCO ROBERT J
IPC: G01N33/569
Filed: 1987-01-30
Granted: 1991-04-09
Abstract: MONOCLONAL ANTIBODIES USEFUL IN THE IDENTIFICATION    OF MICROORGANISMS CAUSING PERIODONTAL DISEASE                           ABSTRACT    Bacteroides gingivalis frequently has been implicated in adult periodontitis.  The present monoclonal antibodies are specific to Bacteroides  gingivalis.  The present monoclonal antibodies are typically employed as a reagent which includes an inert carrier, preferably a liquid such as buffered solution and a preservative.  The carrier compositions are suitably selected to provide for the proper dispersal of bacteria, and to preserve the integrity of antigens and supplemental structures.  The selection of the proper carrier is especially important in the detection of bacteria which produce large amounts of autolytic enzymes such as B. gingivalis.  The monoclonal antibodies of the present  invention  are  useful  in  clinical  testing  and differentiating antigens in the gingival or subgingival sera.          The method of testing and differentiating involves the steps of contacting a sample of the bacterial flora from a lesion or other site with a measured amount of a monoclonal antibody specific to a single antigen site on Bacteroides gingivalis and subsequently measuring the number of antibody-antigen complexes formed.
Patent CA-1324054-C (CA)
Inventor: JURKIEWITSCH GEORGE
IPC: A24D3/02
Filed: 1987-03-02
Granted: 1993-11-09
Abstract: METHOD AND DEVICE FOR INDEPENDENTLY ADJUSTING FILTER ROD  DENSITY AND RESISTANCE TO DRAW     Abstract of the Disclosure A method and device for limiting the existing functional correlation between synthetic fiber denier, fiber rod density, and resistance to draw, by replacing bloomed tow with a sliver or nonwoven ribbon maintained under precise constant back ten-sion control within a predetermined range during introduction of the sliver or nonwoven into the garniture of a filter rod-making device.
Patent CA-1321048-C (CA)
Title: Microspheres and method of producing same
Inventor: LENCKI ROBERT W J
IPC: B01J13/08
Filed: 1987-03-05
Granted: 1993-08-10
Abstract: ABSTRACT OF THE DISCLOSURE           Providing a water slurry containing an immobi-lizing agent and an insoluble substance,  such as calcium citrate,  effective to cause gelation of the immobilizing agent.  The water slurry is then contacted with a hydro-phobic liquid,  such as a vegetable oil under conditions leading to the formation of a dispersion of droplets of the water slurry in the hydrophobic liquid.  The droplets gel to form microspheres by adding an oil-soluble organic acid,  such as acetic acid to the dispersion containing the droplets. Possibility of producing microspheres which are very  small and are  constituted  of  nearly  perfect spheres.  If desired the method can be adapted to produce microspheres containing immobilized material.
Patent CA-1303863-C (CA)
Title: Pressure barrier liner
Inventor: ROBERTSON ANDREW M
IPC: E02D31/00
Filed: 1987-06-02
Granted: 1992-06-23
Abstract: PRESSURE BARRIER LINER                    Abstract of the Disclosure A  pressure  barrier  liner  is  an  assembly  of  low permeability membranes disposed one above the other.  A region is encapsulated between each adjacent pair of membranes.   A pressurized fluid such as air or water is introduced into a selected group of the encapsulated regions to pressurize them to a selected pressure or pressures, thereby ensuring that any flow through the membranes or through disruptions in the membranes will be from within the pressurized regions to the regions outside the membranes which encapsulate the pressurized regions, rather than from the fluid storage region above the membranes, through the membranes and into the region beneath the membranes which is to be protected by the liner.  Alternatively, a selected group of the encapsulated regions may be depressurized to a selected pressure or pressures, thereby ensuring that any fluid flow through disruptions in the membranes is withdrawn, thus again preventing fluid escapement from the fluid containment region above the membranes, through the membranes and into the region beneath the membranes which is to be protected by the liner.   The pressure within, or the flow rate to or from the encapsulated regions may be monitored to ascertain the rate at which the liner would leak if not pressurized or depressurized. If leaks are detected a sealing material may be injected into the encapsulated regions to reduce further leakage.
Patent CA-1294709-C (CA)
Title: Controller for controlling multiple lan types
Inventor: CONWAY JOHN W
IPC: H04L29/00
Filed: 1987-07-27
Granted: 1992-01-21
Abstract: ABSTRACT     A local area network (LAN) system is provided that is capable  of  accommodating  a  variety  of  computer  subsystem types,  and  having  a  LAN  controller  which  can  control  at substantially the same time a plurality of LANs of the same type or a plurality of different types of LANs.
Patent CA-1266517-C (CA)
Title: Flip-flop circuit
Inventor: ASAZAWA HIROSHI
IPC: H03K3/037
Filed: 1987-08-12
Granted: 1990-03-06
Abstract: Abstract of the Disclosure In a flip flop circuit, input and output terminals of two inverters connected between corresponding data input terminals and corresponding data output terminals are cross-connected. Latch switches are inserted between the inverters and the corresponding data input terminals. Hold switches are inserted in the cross-connected portion of the two inverters. The latch switches are turned on/off in synchronism with a latch input while the hold switches are turned on/off in synchronism with a hold input.
Patent CA-1293289-C (CA)
Title: Tractor relay valve with proportioning
Inventor: SZUDY JAMES E
IPC: B60T15/20
Filed: 1987-08-27
Granted: 1991-12-17
Abstract: ABSTRACTION OF THE INVENTION        A proportioning control valve for a fluid pressure braking system for a tractor-trailer combination vehicle permits unproportioned communication of control pressure when the tractor is pulling a trailer but proportions communication of control pressure when the tractor is operated without a trailer to establish a proportionally lower pressure level at the outlet of the valve.  The control valve, when operating in the proportioning mode, is also responsive to pressure in the brake reservoir.  When pressure in the reservoir drops below a predetermined level, the control valve proportions at a rate which increases the pressure level at the outlet at a rate greater than the rate of increase of control pressure until the unproportioned pressure level is attained.
Patent CA-1302255-C (CA)
Title: Sustained release dosage form
Inventor: KONISHI RYOJI
IPC: A61K9/00
Filed: 1987-08-31
Granted: 1992-06-02
Abstract: ABSTRACT OF THE INVENTION         A drug reservoir containing an active substance such as a drug is formed on an adhesive layer which can adhere to an oral mucosal membrane.  A polymer, which does not dissolve with saliva, is further coated on the drug reservoir as a drug release controlling layer to form an entire oral cavity sustained release dosage form.  A drug impermeable layer can be formed between the adhesive layer and the drug reservoir.
Patent CA-1324053-C (CA)
Inventor: DAHLGRUEN ROLF
IPC: A24C5/52
Filed: 1987-12-11
Granted: 1993-11-09
Abstract: ABSTRACT           A method of and an apparatus for delivering successive filter rod sections of a series of such sections onto the upper reach of an endless belt conveyor whereon the sections form a single file of coaxial articles.  A first rotary drum-shaped conveyor has axially parallel peripheral flutes which draw successive filter rod sections from a magazine and move them at right angles to their axes to a transfer station where each oncoming section is brought to a halt in the flute of a stationary ramp.  A second rotary drum-shaped conveyor has peripheral pushers which engage the rear end faces of successive sections in the flute of the ramp and move the entrained sections axially toward and onto the belt conveyor.  A brush is adjacent the path of sections on the second drum-shaped conveyor to ensure that each section abuts the respective pusher not later than immediately prior to transfer onto the belt conveyor.  The second drum-shaped conveyor has a peripheral groove wherein the sections in front of the respective pushers are attracted by suction.
Patent CA-1304826-C (CA)
Title: Terminal device session management protocol
Inventor: SUDAMA RAM
IPC: G06F13/00
Filed: 1988-03-28
Granted: 1992-07-07
Abstract: ABSTRACT         An improved system for transferring information between a host system and a terminal system in a digital data processing system is described.  The new system includes a host computer system which runs application processes and a terminal system which is connected to the host computer system over a communications link.  The terminal system includes one or more virtual terminals each of which allows an operator to enter information for use by the application processes and allows output information from the processes to be displayed.          The association between a terminal device and an application process is a session.  Initially, a session is selected by means of a command transferred over the communications link.  There-after, information, associated with the selected session, may be transferred over the communications link.  This may continue until another session is selected.  Command packets may be multiplexed with the information to be transferred to control other sessions without selecting another session.  The new information transfer system minimizes the amount of control information which is required to identify the particular session with which data being transmitted over the communications link is associated.  This is because once a session is selected, it remains selected until another session is selected, after which the data transmitted is associated with the newly selected session.  Since the amount of time control information must be sent is minimized, the amount of time available to send data is maximized.
Patent CA-1310369-C (CA)
Title: Vehicle communication system using existing roadway loops
Inventor: POTTER THOMAS R
IPC: G08G1/0967
Filed: 1988-05-06
Granted: 1992-11-17
Abstract: VEHICLE COMMUNICATION SYSTEM USING EXISTING ROADWAY LOOPS                ABSTRACT OF THE DISCLOSURE A method and system for transferring informa-tion between a moving vehicle and a stationary informa-tion location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals gen-erated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle.  The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted car-rier pattern processing.
Patent CA-1283176-C (CA)
Title: Phase comparator
Inventor: NAWATA HIZURU
IPC: H03L7/087
Filed: 1988-05-25
Granted: 1991-04-16
Abstract: ABSTRACT OF THE DISCLOSURE A phase comparator included in a phase locked loop (PLL) for comparing two input signals with respect to phase to thereby determine their phase difference includes two multipliers and two low-pass filters for producing a sine component signal and a cosine component signal which are associated with the phase difference. A discrimination signal representative of a polarity is generated on the basis of one of those two component signals, and a phase error signal is generated on the basis of the other of them. The phase error signal monotonously increases during predetermined one period which is determined by the discrimination signal, i. e. (2n - 1).pi.  to (2n + 1).pi. where ? is 0, ?1, ?2 and so on. A PLL using such a phase comparator is allowed to rapidly converge to a stable point even when the phase error is close to an unstable point, i. e., ?(2n - 1) where n is 0, 1, 2 and so on, achieving an extremely short acquisition time.
Patent CA-1295707-C (CA)
Title: Apparatus and method for inspection of surface quality of smooth surfaces
Inventor: WONG ANDREW K
IPC: G01N21/89
Filed: 1988-07-28
Granted: 1992-02-11
Abstract: ABSTRACT A method and apparatus for inspecting the surface quality of automotive parts having smooth surfaces utilizes a light source and diffusing surface contained in an opaque enclosure.  The diffusing surface has a convex shape and is arranged relative to the light source to direct a gradient of light through the aperture in the form of a beam.  An object to be inspected is placed in the beam at a low angle relative to the inspection apparatus.  All extraneous light is controlled and the beam is reflected off the object to an observer.  The gradient in the reflective beam exposes any defects on the surface that are located on the beam and the location of the defects is noted.  The inspection system and method can be used to inspect objects having surfaces that range from being highly reflective to lowly reflective.  The curvature and location of the diffusing surface within the enclosure is adjustable.  The size and location of the aperture is also adjustable.  The apparatus and method is particularly suited to inspect body parts in the automotive industry.  No pretreatment of the parts is required.  The system can be used in a production line with the parts mounted on a conveyor system.  The observer can be the human eye or a camera or series of cameras.  The system is readily adaptable to observation by machine vision.
Patent CA-1335515-C (CA)
Inventor: ADAMS HAROLD P JR
IPC: E21B47/04
Filed: 1988-08-04
Granted: 1995-05-09
Abstract: A system for controlling production in an oil well  comprises a first level  sensor mounted upon the outer surface of the tubing near the lower end of the tubing and a second level sensor mounted upon the outer surface of the tubing above the first level sensor.  The first level sensor is tuned to a first electrical signal frequency.  The second level sensor is tuned to a second electrical signal frequency.  A control device at spaced intervals transmits electrical signals of the first and second  frequencies  down  the  oil  well  and  senses  the liquid level by detecting impedance.
Patent CA-1335620-C (CA)
Title: Energy-induced curable compositions
Inventor: BROWN-WENSLEY KATHERINE A
IPC: C08G59/68
Filed: 1988-08-17
Granted: 1995-05-16
Abstract: A polymerizable composition comprises a polymeric precursor selected from the group consisting of 1) at least one ethylenically-unsaturated monomer, 2) at least one epoxy monomer, and 3) polyurethane precursors, and a curing agent comprising an organometallic compound and an onium salt.
Patent CA-1301867-C (CA)
Inventor: HIRAMA MASAHIRO
IPC: H01G4/12
Filed: 1988-09-08
Granted: 1992-05-26
Abstract: Abstract of the Disclosure There is described an improved multilayered ceramic capacitor comprising in combination a plurality of ceramic thin film pieces and joining layers formed on the ceramic thin film pieces  in which they are alternatively laminated.   The ceramic thin film piece is independently fired, and is sandwiched between two joining layers, the joining layers serving to join the adjacent  layers sandwiching the joining layer.  Conductive material layers are formed on the surfaces of the ceramic thin pieces constituting electrodes for the capacitor.  The plurality of ceramic film pieces themselves comprise two or more species of ceramic films independently different in dielectric properties, each species being made of selected dielectric material and each species having at least one film piece laminated in the stack of the layers.
Patent CA-1340558-C (CA)
Title: Sucralose compostitions
Inventor: BEYTS PAMELA KAY
IPC: A23L27/30
Filed: 1988-10-06
Granted: 1999-05-25
Abstract: Synergy is obtained by combining sucralose and saccharide sweetener selected from fructose, glucose, maltose and gluco oligosaccharides, and mixtures thereof, and sugar alcohols, the relative sweetness contribution provided by the sucralose and the saccharide sweetener being from 5 : 1 to 1 : 5, preferably 3 : 1 to 1 : 3.  Such synergy enables the preparation of sweetening compositions containing such combinations and the sweetening of oral compositions with them.
Patent CA-1306309-C (CA)
Title: Multiprocessor intelligent cell for a network which provides sensing, bidirectional communications and control
Inventor: EISENHARD BRUCE T
IPC: H04Q9/00
Filed: 1988-11-09
Granted: 1992-08-11
Abstract: ABSTRACT OF THE DISCLOSURE     A cell for use in a network which provides sensing, communications and control, comprising:  input and output means coupled to said network for providing communication with said network; a memory; a processor coupled to said input and output means comprising:  at least one arithmetic logic unit (ALU); a plurality of sets of registers, each set including an instruction (1) register and logic means coupled to each of said 1 registers for storing and interpreting instructions stored in said 1 registers; said 1 registers being coupled to said ALU, said sets of registers and said memory; timing means coupled to said sets of registers, ALU and memory for causing signals from any one set of said registers to be coupled to said ALU as inputs to said ALU while simultaneously causing the output of said ALU to be coupled to said memory, and simultaneously causing the output of said memory to be coupled to another one of said sets of registers; whereby a cell is realized.  The network provides great flexibility.
Patent CA-1305109-C (CA)
Title: Thermo-actuator
Inventor: KUZE YOSHIKAZU
IPC: G01K5/44
Filed: 1988-11-16
Granted: 1992-07-14
Abstract: THERMO-ACTUATOR Abstract of the Disclosure A thermo-actuator has a steel rod, a guide member alidably mounted on the rod, a seal spool secured to the guide member, a heat conductive cylinder secured to the guide member,  and a wax provided in the cylinder. The seal spool has a thin thickness . so that the seal spool engages with the rod by a vacuum generated in the seal spool .
Patent CA-1335676-C (CA)
Title: Portable data transmitter device and a system using the same
Inventor: IGA AKIRA
IPC: B61L25/04
Filed: 1989-01-04
Granted: 1995-05-23
Abstract: A portable device having an antenna for reflecting an electric wave emitted from a recognition device, a data generator for generating data to be sent from the portable device to the recognition device, and an impedance changer for changing an impedance of the antenna according to the data generated by the data generator, whereby the electric wave reflected by the antenna is modulated with the data generated by the data generator.
Patent CA-1330428-C (CA)
Inventor: FRITZ ALAN J
IPC: B03C1/03
Filed: 1989-01-19
Granted: 1994-06-28
Abstract: ABSTRACT An improved magnetic separator arrangement is provided.   One major improvement relates to modifica-tions facilitating utilization of relatively dense and tightly packed matrix material within  races,  through which a slurry of ore material passes during separation. The  tightly  packed  matrix  material  is  accommodated through  utilization  of  flexible  race  walls,   and compression   and   expansion   mechanisms   selectively operable to facilitate separation.   A cover mechanism inhibits  water  flow  turbulence,  during  an  initial setting  up  of  a  magnetic  field  to  entrap  magnetic material within the matrix element of each race.   A preferred retainer mechanism is provided which facilita-tes mounting of flap members for use in association with a cover mechanism, as well as retention of the matrix material in a desired position.  In a preferred embodi-ment,  the  previous  features  are  incorporated  into  a system fed with an ore material from an inner portion of a circular race, i.e. the center of a rotating drum.
Patent CA-1324272-C (CA)
Title: Adjustable width rolls for rolling mill
Inventor: SETO TSUNEO
IPC: B21B31/08
Filed: 1989-06-15
Granted: 1993-11-16
Abstract: ADJUSTABLE WIDTH ROLLS FOR ROLLING MILL                  Abstract of the Disclosure Adjustable width rolls are preferably used for rolling, for example, insides of H-beams of various sizes without exchanging horizontal rolls of a rolling mill.  Each of the adjustable width rolls includes a roll shaft rotatably and axially movably supported relative to the rolling mill, and axially adjustable sleeve roll fixed to the roll shaft, and an axially stationary sleeve roll mounted on the roll shaft to be axially slidable but against rotatable relatively to the roll shaft.  The adjustable width roll further includes an axially adjustable roll fixedly supported by the axially adjustable sleeve roll to form substantially one half of a rolling barrel of the adjustable width roll, an axially stationary roll fixedly supported by the axially stationary sleeve roll to form substantially the remaining half of the rolling barrel of the adjustable width roll, and driving means for driving the roll shaft in axial directions of the roll shaft.
Patent CA-1340824-C (CA)
Inventor: MCCARTHY JAMES R
IPC: C07K14/47
Filed: 1989-06-19
Granted: 1999-11-16
Abstract: Antagonists of neurokinin A which are derivatives of naturally occurring neurokinin A in which the amide bond connecting the two amino acids on the carboxy terminal end is modified are described. The antagonism is confirmed using conventional competitive binding and biochemical assays as well as conventional physiological tests and the use of these derivatives in a variety of conditions in which neurokinin A is implicated is also described.