baber/WOPTO huggingface dataset:
Patent CA-1290070-C (CA)
Title: Implementing privilege on microprocessor systems for use in software asset protection
Inventor: NOLAN THOMAS J JR
IPC: G06F21/14
Filed: 1987-10-23
Granted: 1991-10-01
Abstract: ?9-86-086 IMPLEMENTING PRIVILEGE ON MICROPROCESSOR SYSTEM FOR          USE IN SOFTWARE ASSET PROTECTION             ABSTRACT OF THE DISCLOSURE     A dual privilege level coprocessor especially suited for use in a software asset protection system is described.          The coprocessor includes a supervisor processing element and an application processing element.   The supervisor processing element includes a supervisor processor and dedicated supervisor random access and read only memory.          The application processing element includes an application processor, an application random access memory, a secure random access memory, a low privilege read only memory, and a high privilege read only memory.  An internal bus couples the supervisor processor, application processor, high   and   low   privilege   random   access   memories, application random access memory and secure random access memory.   The high privilege read only memory and the secure random access memory are enabled only in response to  dedicated  control  signals  from  the  supervisor processor. While   the   application   processor   in combination with the low privilege random access memory has many general purpose computing capabilities,  it is incapable of executing input or output operations.   An input/output  device  is  controlled  by  the  supervisor processor.  The secure random access memory is provided for storage of sensitive information such as decryption keys.  The coprocessor implements a low privilege level of  operation  for  the  purpose  of  executing  protected software which is
Patent CA-1296972-C (CA)
Title: Motor-driven chain saw
Inventor: FISCHER MANFRED
IPC: B27B17/08
Filed: 1987-11-25
Granted: 1992-03-10
Abstract: Abstract of the Disclosure For motor-driven chain saws, there is the danger that the chain saw will be kicked back if the reaction forces suddenly increase intensely in response to the forward thrust.  This kickback effect and the danger of accident associated therewith are intended to be prevented by means of a special configuration of the saw chain.  The saw chain has drive links which have an approximately triangular shape and which engage the tooth gaps of the nose sprocket with inclined flanks.  The drive links are configured to be asymmetrical with respect to a partition line running between the two pivot axes of the link so that the forward flank angle is greater than the rearward flank angle referred to the partition line.  The two flank angles together are greater than the opening angle of the V-shaped tooth gap of the nose sprocket.  The saw chain can be configured as a low-profile chain with the spacing between the pivot axes of the cutting link being at least 10 greater than the spacing of the cutting edge to the plane containing the connecting line between the two pivot axes of the cutting link.  Furthermore, the depth limiter can have an area in its upper region which is at least 4 mm2.
Patent CA-1287105-C (CA)
Inventor: RAUSCH FREDERIK
IPC: H02M3/335
Filed: 1988-01-20
Granted: 1991-07-30
Abstract: ABSTRACT: Power-suuply arrangement.     A flyback converter comprises the series arrangement of a primary winding (n1), a transistor switch (S1) and a resistor (R1) between two input terminals (1, 2) for receiving an input voltage. The series arrangement of a secondary winding (n2) and a diode (D1) is arranged between the output terminals (3, 4) for connecting a load (M). The transistor switch (S1) is controlled by pulses from a pulse-width modulator (10), a sawtooth voltage generated by an oscillator (20) being applied to a first input (11) and a first feedback voltage being applied to a second input (12) via a control amplifier (40), which feedback voltage is proportional to the difference between a referen-ce voltage from a reference source (30) and a fraction of the output voltage, and a second feedback voltage equal to the voltage across the resistor (R1) being applied to said second input via a capacitor (C1).           (Fig. 1)
Patent CA-1333489-C (CA)
Title: Hydrolysis of activated olefinic ketones and aldehydes
Inventor: DOLFINI JOSEPH E
IPC: C11B9/00
Filed: 1988-01-26
Granted: 1994-12-13
Abstract: Ketones or aldehydes containing one or more carbon-carbon  double  bonds  and  a  carbonyl  group conjugated with at least one double bond are hydro-lyzed  by  the  action  of  heat  and  pressure  in  the presence of water by a batch or continuous process.          The ketone or aldehyde cleaves  at the double bond conjugated with the carbonyl group to produce addi-tional carbonyl-containing compounds.
Patent CA-1321314-C (CA)
Title: Electrophotographic imaging members
Inventor: WIELOCH FRANCIS J
IPC: G03G5/14
Filed: 1988-03-04
Granted: 1993-08-17
Abstract: ABSTRACT          An electrophotographic imaging member is disclosed having an imaging surface adapted to accept a negative electrical charge, the electrophotographic imaging member comprising a metal ground plane layer comprising zirconium, a hole blocking layer, a charge generation layer comprising photoconductive particles dispersed in a film forming resin binder, and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.
Patent CA-1287682-C (CA)
Title: Clamping circuit for clamping video signal
Inventor: ASANO YOSHIKAZU
IPC: H04N5/08
Filed: 1988-03-09
Granted: 1991-08-13
Abstract: ABSTRACT OF THE DISCLOSURE     A frame synchronizing signal detecting circuit detects a frame synchronizing signal in a video signal. When the frame synchronizing signal is not detected by the frame synchronizing signal detecting circuit, a clamp level switching circuit is responsive to a switching signal from a timer circuit for generating alternately an upper clamp potential V+ and a lower, clamp potential V-. When the frame synchronizing signal is detected by the frame synchronizing signal detecting circuit, the clamp level switching circuit generates a normal clamp potential V0.  A clamping pulse generating circuit is responsive to an output from the frame synchronizing signal detecting circuit for generating a clamping pulse.  A clamping circuit is responsive to the clamping pulse for clamping an analogue video signal at the clamp potentials V0, V+ or V- from the clamp level switching circuit.
Patent CA-1302684-C (CA)
Title: Microporous membrane trickle bed reactor
Inventor: CUSSLER EDWARD L
IPC: C01B17/775
Filed: 1988-05-25
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE           Trickle bed reactors are prone to channelling, flood-ing, and similar flow problems.  It has been found that these problems can be avoided by the use of a microporous membrane to separate a reactant fluid phase from a catalysis fluid phase surrounding a catalyst bed.  An advantage of such a reactor is that the fluid flows can be separately controlled.  An apparatus useful as a trickle bed reactor can include a plurality of microporous hollow fibers arranged in a shell-and-tube configur-ation within a housing.  Such an apparatus is operated with a reactant fluid phase flowing through the fibers and with a catalyst bed on the shell-side of the arrangement.
Patent CA-1339308-C (CA)
Inventor: HIROSE KUNITAKA
IPC: A61K36/06
Filed: 1988-06-17
Granted: 1997-08-19
Abstract: Disclosed herein are polysaccharides produced from the fungus species of Procaryomycetes, Eucaryomycetes and Ascomycetes, and an antiviral drug containing as active ingredient polysaccharides produced from the Procaryomycetes, Eucaryomycetes, Ascomycetes and Basidiomycetes of the families Tricholomateceae, Ganodermeae and Auriculariaceae.
Patent CA-1337164-C (CA)
Inventor: PEPE ENRICO JAMES
IPC: C03C17/30
Filed: 1988-06-30
Granted: 1995-10-03
Abstract: This invention relates to a method of pretreatment of inorganics, such as fiberglass, with members of a class of N-silyl substituted 1-sila-2-azacyclopentane compounds and to a process for making composite materials therefrom.  In a preferred embodiment of the instant invention, the pretreatment of fiberglass with 1,1-dimethoxy-2-(trimethoxysilyl)-1-sila-2-azacyclo-pentane is disclosed.
Patent CA-1288305-C (CA)
Title: Self-priming injection site with check valve
Inventor: KULLE LEE
IPC: A61M5/14
Filed: 1988-07-14
Granted: 1991-09-03
Abstract: ABSTRACT A self-priming injection site having a stopper that resists dislocation or removal from the injection site.  The stopper is positioned within the plastic housing between a top with an open center and an intermediate ledge having an upturned lip. The stopper includes an annular groove that receives the upturned lip of the intermediate ledge, to assist in holding the stopper in compression within the housing.  An arm portion allows the intravenous fluid to enter the injection site on a path approximately parallel to and immediately adjacent to the ledge and the bottom of the stopper.  A check valve may be positioned within the arm portion.
Patent CA-1310499-C (CA)
Inventor: BENE ARMAND
IPC: D06B3/28
Filed: 1988-07-14
Granted: 1992-11-24
Abstract: This device comprises, in combination and arranged on the strand of the rope (3) leaving the storage zone (5), on the one hand means (8, 10) for controlling the advance of the rope and on the other hand means (11, 12) capable of exerting a pull on this strand of the rope when the means for controlling the advance of the rope detect that the latter has stopped. 
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Patent CA-1303069-C (CA)
Title: Polyarylalkanes oligomers compositions comprising xylenic elements, and process for their preparation
Inventor: COMMANDEUR RAYMOND
IPC: C07C2/86
Filed: 1988-07-14
Granted: 1992-06-09
Abstract: Polyarylalkane oligomer compositions consisting essentially of a mixture of isomers of xylyl-xylene and of higher homologues and a mixture of isomers of bis(dimethylphenyl)xylylene and of higher homologues; the method of making such compositions by first reacting toluene, xylene, or a mixture of toluene and xylene with chlorine in the presence of a radical generator, removing the unreacted toluene, and then subjecting the reaction product to the action of an inorganic halide or inorganic acid in the presence of xylene, and microcapsules containing color-forming material wherein the compositions are used as solvents for the color-forming material.
Patent CA-1291222-C (CA)
Title: Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading
Inventor: MANDELL DOUGLAS E
IPC: H03H21/00
Filed: 1988-09-23
Granted: 1991-10-22
Abstract: Abstract of the Disclosure An adaptive single-bit encoder and decoder has its adaptive function determined by dynamically dividing the message frequency band into delta-sigma and delta modulation regimes of operation.  In a practical embodiment this is accomplished by varying the corner frequency of a variable-frequency low-pass filter in a leaky integrator so that below the corner frequency the operation is that of delta-sigma modulation and above the corner frequency the operation is that of delta modulation.  An adaptation control circuit removes the clock signal component from the encoded bit stream to provide an analog signal representative of bit stream information or loading for use in generating the control signal.  The analog signal is peak rectified, smoothed, and (optionally) non-linearly processed to provide the control signal.
Patent CA-1341213-C (CA)
Inventor: APPLEBAUM SIDNEY PHILLIP
IPC: G01S13/524
Filed: 1988-10-18
Granted: 2001-04-10
Abstract: The invention relates to apparatus for reducing the masking effect in the doppler frequency domain of wind sheared clutter upon the radar returns of wing targets.      The invention consists in forming two beams from the elements of a radar antenna array by means of adjustable complex weights which are then summed. One of the two beams is then delayed by a predetermined amount and added algebraically to the other beam to form a composite beam containing a narrow trough-like depression in beam angle / doppler frequency space. Means are then provided for adjusting the weights to bring coincidence between the depression and the clutter to cause attenuation of the clutter with a minimum reduction in the usable doppler frequency domain.
Patent CA-1294020-C (CA)
Title: Electronic keyboard
Inventor: CURLEY CHARLES M
IPC: H01H13/12
Filed: 1988-11-18
Granted: 1992-01-07
Abstract: A full sized electronic keyboard with full travel keybuttons provides switches for controlling an electronic typewriter or for controlling other devices. The keyboard has a structure designed for reducing part count and switch component part size and for simplifying assembly to minimize manufacturing cost. The structure has integral one piece parts for accommodating several keybutton actions. The integral one piece parts include a main frame, a sheet steel spring, a rubber dome switch member, and a printed circuit switch panel.
Patent CA-1303251-C (CA)
Inventor: CRANE JACOB
IPC: H01L23/10
Filed: 1988-12-28
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE      A semiconductor package for an electrical component has a metal or metal alloy leadframe adapted to have an electrical component connected thereto.  The leadframe is bonded by means of a polymer to copper or copper alloy base and cap members.  The cap and base members have coated to their inside surfaces a metal or metal alloy which improves the polymer bond.
Patent CA-1277049-C (CA)
Title: Dynamic assignment switching in the dispatching of elevator cars
Inventor: MACDONALD ROBERT C
IPC: B66B1/20
Filed: 1989-03-06
Granted: 1990-11-27
Abstract: 24                  54,183 ABSTRACT OF THE INVENTION A method for assigning hall calls to a plurality of elevator cars on the basis of the estimating the time of arrival (ETA) of each elevator car at the floor of the hall call to be assigned. A new hall call is assigned to the car having the lowest ETA.  A previously assigned hall call is reassigned  to  a  car  having  a  lower  ETA  than the car presently assigned to serve the call when the lower ETA is lower by a value T.  The average call waiting time (AWT) is calculated using a selected period of time to tabulate the number of calls and cumulative call waiting time, and this calculated value is compared with the desired AWT for the elevator  system.   The  value  of  T  is changed  when the calculated and desired values of ETA have a predetermined relationship.
Patent CA-1326229-C (CA)
Inventor: DEAN KEVIN
IPC: B65B67/12
Filed: 1989-03-14
Granted: 1994-01-18
Abstract: ABSTRACT OF THE DISCLOSURE           A device for holding open the entrance to a plastic garbage bag, to facilitate filling the bag.  The device comprises three rigid elongated members hinged at their ends to each other so as to form, in open position, an elongated linear member.  The free ends are provided with releasable, engageable securing means.  When the securing means are engaged, the members are in closed position to form a rigid triangular structure.   Means are provided for releasably circumscribing the members, when in closed position, to releasably hold thereon the garbage bag in open orientation.
Patent CA-1304829-C (CA)
Title: Apparatus comprising a superconductive element, and method of making the element
Inventor: SHORT KENNETH T
IPC: H01B13/00
Filed: 1989-03-28
Granted: 1992-07-07
Abstract: APPARATUS COMPRISING A SUPERCONDUCTIVE ELEMENT, AND METHOD OF MAKING THE ELEMENT Abstract The critical current density Jc of a superconductive oxide film can be tailored, without substantial change in the critical temperature Tc(R=0), by introduction of radiation damage into the superconductor. Exemplarily, this is done by exposure to energetic (e.g., 1 MeV) ions. The ability to tailor Jc permits optimization of SQUIDS and other thin film devices, and makes it possible to produce superconductive interconnects that comprise "fuses" or current limiters.
Patent CA-1330668-C (CA)
Title: Ultrasonic treatment of animals
Inventor: VAGO ROBERT E
IPC: A61H23/02
Filed: 1989-03-29
Granted: 1994-07-12
Abstract: ULTRASONIC TREATMENT OF ANIMALS            ABSTRACT OF THE DISCLOSURE    To provide ultrasonic treatment of animals, ultrasonic waves in a frequency range of between 15 kilohertz and 100 kilohertz are applied to water in a tub with a power density between 0.1 and 5 watts per square centimeter.  The equipment is able to apply ultrasonic waves with at least two power densities in the vicinity of the portion of the animal with one of said power densities being more than 15 watts per square meter for sterilizing the water before the patient enters the tub and the other being less than 15 watts per square meter
Patent CA-1330205-C (CA)
Inventor: HS BJOERN
IPC: D21D5/06
Filed: 1989-05-31
Granted: 1994-06-14
Abstract: AN APPARATUS FOR SCREENING A SUSPENSION OF FIBROUS CELLULOSE PULP                   ABSTRACT OF THE DISCLOSURE            An apparatus for screening a suspension of fibrous cellulose pulp comprising a housing and a rotor shaft, said housing having an inlet for said suspension and containing first and second screen-ing sections, each comprising a rotor member mounted on the rotor shaft and a cylindrical screen cooperating therewith and defining an outer accept chamber and an inner screening chamber, the first screening section including an inlet chamber communicating with the screening chamber of the first screening section, and an outlet chamber communicating with the screening chamber of the first screening section, for discharging a first reject, and the second screening section including an outlet chamber communicating with the screening chamber of the second screening section, for discharging a second reject from the apparatus, and the accept chamber of the second screening section having an outlet for dis-charging screened fiber suspension. The outlet chamber of the first screening section includes an outlet disposed for discharg-ing the first reject from the apparatus, and the accept chamber of the first screening section is in open communication with the screening chamber of the second screening section via an interior connection for conveying the fiber suspension screened in the form of an accept in the first screening section to the second screen-ing section to be re-screened, the outlet from the accept chamber being disposed for discharging repeatedly screened fiber suspen-sion in the form of a final accept.
Patent CA-1337183-C (CA)
Inventor: FINDLAY HUGH T
IPC: B41J31/02
Filed: 1989-06-08
Granted: 1995-10-03
Abstract: A fabric ribbon having multicolored regions has coloring matter in the regions of only flushed pigments in a liquid vehicle.  Flushed pigments do not migrate between colored regions under normal conditions, and therefore mixing of the colors is avoided without alternation of the fabric or  use  of  a fabric  with  special  characteristics  or regions.  Flushed pigments have very small particle size and perform like dyes with respect to replenishing the ribbon for good ribbon life.  Yet, the ribbon colors do not bleed together, a characteristic of pigments.
Patent CA-1316813-C (CA)
Title: Notch cylinder unit
Inventor: RICHEY JAROLD L
IPC: B26D7/18
Filed: 1989-06-12
Granted: 1993-04-27
Abstract: ABSTRACT A notch cylinder unit for selectively activating a plurality of impaling pins such as might be used for separating and removing a strip from a paper web.  The notch cylinder unit comprises a cylinder having a longitudinally extending hole and hollow support shafts integrally mounted to the cylinder, at least two rows of removable blades extending radially outwardly from and longitudinally of the cylinder, and adapted to cut a strip in the web, and a plurality of slidably mounted impaling pins generally equally spaced between the rows of blades and adapted to puncture, hook and remove the strip.  The notch unit cylinder unit further includes an activating means for activating or deactivating the slidably mounted impaling pins.
Patent CA-1314899-C (CA)
Inventor: GLEASON JOHN G
IPC: C07D309/30
Filed: 1989-08-31
Granted: 1993-03-23
Abstract: ABSTRACT Herein are claimed intermediates useful for preparing certain leukotriene antagonists.  These intermediates are represented by formula (I)   (I) the various groups being defined herein.
Patent CA-1322093-C (CA)
Title: Prefabricated house including molded elements
Inventor: VENDRAMINI DANTE
IPC: E04B1/32
Filed: 1989-09-29
Granted: 1993-09-14
Abstract: A B S T R A C T      A prefabricated house comprises a plurality of adjacent radial molded elements (101 to 1018) which are assembled together to form a low dome.  The house has a central support structure (12) in the form of a shaft erected on a floor slab (14) and each of the molded element  has an outer wall (42) formed by a sandwich of composite material and forming a part both of the roof and of the side wall of the house.  The outer wall (42) is delimited by a top edge (44) for connection to the central support structure (12), a bottom edge (48) for connection to the floor slab (14), and two side edges (52, 54) for assembly to two corresponding side edges (56, 58) belonging to two adjacent elements.
Patent CA-1328695-C (CA)
Inventor: SHIGEMATSU MASAYUKI
IPC: H04B10/07
Filed: 1989-09-29
Granted: 1994-04-19
Abstract: Abstract An optical communication system of the optical feed forward type in which a main optical signal and a distortion optical signal are transmitted by a common optical fiber line.
Patent CA-1324304-C (CA)
Inventor: OGAWA YOSHIHIRO
IPC: A45D2/36
Filed: 1989-09-29
Granted: 1993-11-16
Abstract: HEAT-GENERATING MATERIAL FOR PORTABLE HAIR CURLER               ABSTRACT OF THE DISCLOSURE      A metallic heat-generating agent comprising as a main component iron powder and water generating steam by an oxidation reaction caused by contact with air is contained in an air-permeable bag as a heat-generating material for a portable hair curler.    A portable hair curler is constructed and operated by exchangeably inserting this metallic heat-generating material in a hair-winding guide cylinder and dismountably attaching a cover after winding the hair onto the hair-winding guide cylinder.
Patent CA-1329825-C (CA)
Inventor: BARKER ALAN R
IPC: H02K17/08
Filed: 1992-09-01
Granted: 1994-05-24
Abstract: Abstract of the Disclosure A reversible permanent split capacitor (PSC) motor and method of designing such a motor employs a parallelogram lamination silhouette and distributes the winding in the core of the motor stator assembly so that maximum flux density in the core is approximately equal in each direction of motor rotation.          The motor is designed to achieve high repetition reversal rates.          The reversal rate and the equal performance attained in each direction, makes the design particularly suitable for washing machine applications.
Patent DK-161679-C (DK)
Inventor: STEFFENS MICHAEL
IPC: B02C18/20
Filed: 1988-09-23
Granted: 1992-02-24
Abstract: In order to be able to position the cutter blades (A, B, C) of a cutter head so that they are radially adjustable in a simple manner in the smallest possible axial space, toothing, (10) is formed in an elongated hole (7) in the area of the blade root (6) at its parallel opposite internal longitudinal edges, whereby toothing (11) at parallel opposite external longitudinal edges of a shaft mounting plate (8) engages with this toothing (10), the shaft mounting plate having a central opening (9), the shape of which corresponds to the cross section of a driven shaft (9'). In this arrangement the thickness of the shaft mounting plate (8) is not greater than the depth of the elongated hole (7), although the length of the shaft mounting plate (8) is smaller than the longitudinal extension of the elongated hole (7).