baber/WOPTO huggingface dataset:
Patent CA-2077227-C (CA)
Title: Digital fsk transmitter receiver and method of operating same
Inventor: BAKER WILLIAM E
IPC: H04L27/14
Filed: 1992-08-31
Granted: 1998-09-15
Abstract: A   digital FSK receiver includes a zero-crossing detector which detects the zero crossings in an FSK signal having at least two signal frequencies.       The time interval between zero crossings is then measured with a first interval value corresponding to one of the signal frequencies and a second interval value corresponding to the other signal frequency.  An accumulator outputs a digital signal which depends on whether the interval is at the first value or the second value, the digital signal including logical zeros and ones.
Patent CA-2086779-C (CA)
Title: Process for the purification of acrylic acid
Inventor: SAKAMOTO KAZUHIKO
IPC: C07C57/07
Filed: 1993-01-06
Granted: 1998-06-23
Abstract: A process  for producing acrylic acid is  described, which process comprising providing a mixed gas of acrylic acid    and  by-products  produced  by  catalytic  gas  phase oxidation  of  propylene  and/or  acrolein,  contacting  the mixed gas with water to obtain an aqueous solution,  and adding an azeotrope solvent to the aqueous solution for distillation  to  obtain  a  mixture  of  the  by-products, water  and  the  azeotrope  solvent  from  a  tower  top  and acrylic  acid  from  a  tower  bottom.  Highly  pure  acrylic acid is  obtained by using,  as  the azeotrope solvent,  a mixed solvent of solvent A selected from diethyl ketone, methyl    propyl    ketone,    methyl    isobutyl    ketone, methyl-tert-butyl  ketone,  n-propyl  acetate  and  mixtures thereof  and  solvent  B  selected  from  toluene,  heptane, methyl cyclohexane and  mixtures thereof.
Patent CA-2088796-C (CA)
Title: Air brake pilot adaptor
Inventor: SHANK DONALD B
IPC: B60T15/14
Filed: 1993-02-04
Granted: 2002-05-21
Abstract: A pilot mechanism for improving operation of various functions of the pneumatic brake of a train. The mechanism includes solenoid valves, controllable by either a radio/battery mode of operation or a train wire system mode of operation. The solenoid valves can be interposed in various passages in fluid communication with passages of a conventional ABD control valve, as modified to enable operation of the invention, to permit substantially immediate venting of air in those passages to atmosphere.
Patent CA-2088915-C (CA)
Title: Bayonet handle package
Inventor: ROBERTS JOHN THOMAS
IPC: B65D5/46
Filed: 1991-08-05
Granted: 1995-10-24
Abstract: A generally-flat bayonet handle (13) is provided having an elongated handle section for gripping by the consumer. Extend-ing from each terminus of the handle section is an elongated neck section having a width less than the width of the handle sec-tion. Respective ends of the bayonet handles are formed by barb heads attached to the neck sections. Each barb head has thereon at least two barbs which, when inserted into appropriately placed apertures on the sides of a soap or detergent powder carton, are ensnared on a lip of the apertures and thereby maintain the engagement of the handle on the carton. The combination of the bay-onet handle and the carton provide a novel soap or detergent powder package.
Patent CA-2092917-C (CA)
Inventor: BAUMGARTNER WERNER A
IPC: G01N1/34
Filed: 1992-07-30
Granted: 2002-06-25
Abstract: A method for the direct analysis of an analyte in keratinized structures, e.g., hair and fingernails, which comprises preparing a mixture containing a low redox potential activator compound such as dithiothreitol or dithioerythritol, an enzyme suitable for the digestion of the keratin structure, a sample of the keratin structure and a biological detergent that aids the digestion of the keratinized structure at a relatively low pH, e.g., between about 6.2 and 8; permitting the enzyme to at least substantially digest the sample of keratin structure, and subjecting the digest solution to analysis, preferably by radioimmunoassay, to determine the identity and amount of analyte in the keratin structure sample.  To accelerate the method, cupric sulfate may be added to the mixture after degradation of the keratin sample. The enzyme may be a peptidase, endopeptidase or proteinase, with papain, chymopapain, and proteinase K being preferred for use in the invention. The preferred biological detergents include betaine, sulfo-betaine, alkylglucosides and bile acids.
Patent CA-2094213-C (CA)
Title: Reinforcement cords for elastomeric products
Inventor: HAMACHER WILHELM
IPC: B60C9/00
Filed: 1993-04-16
Granted: 2001-08-21
Abstract: Reinforcement cord for elastomeric products, in particular reinforcement cords, for use in vehicle tyres comprising inner filaments (1) and at least one outer filament (2) wound helically around the inner filament (1), characterised in that at least the outer filament (2) has a flattened cross-section and is so dimensioned and positioned that it substantially co-determines the mechanical characteristics of the reinforcement cord via line-like and/or area contact locations with the inner filaments (1) .
Patent CA-2101077-C (CA)
Inventor: BURROUGHS JAMES R
IPC: H01M50/574
Filed: 1991-01-28
Granted: 2000-01-25
Abstract: Système de commutateur et d'indicateur (12) de charge pour une pile (18), qui est couplé au niveau des bornes (20) de la pile et qui comprend un indicateur signalant la charge de la pile. L'indicateur de charge de la pile comprend également un commutateur disposé en ligne qu'on peut facilement abaisser pour fermer le circuit de manière à placer l'indicateur au niveau des bornes de la cellule et à afficher la charge de la pile.
Patent CA-2108791-C (CA)
Inventor: MCGREGOR GAVIN
IPC: B23H1/04
Filed: 1993-10-25
Granted: 1999-03-30
Abstract: A method of manufacturing electrically conductive elements such as electrodes for EDM, ECM or other electro-machining processes comprises the steps of designing a digital representation of the element, making a three-dimensional replica of the element from an intermediate material, e.g. a polymer, based on the digital representation, and coating the replica with a layer of a good electrical conductor.   The replica is made using a tool-less prototyping process.  The method  is  faster  and  less  expensive  than  conventional machining of copper or graphite  EDM or  ECM electrodes, especially those having an intricate shape.
Patent CA-2109759-C (CA)
Title: Method and device for processing a signal
Inventor: VAN NEE DIDIER JOHANNES RICHAR
IPC: G01S1/24
Filed: 1993-11-26
Granted: 2005-06-07
Abstract: A method and device for processing a signal are described, wherein an estimate of a multipath-induced contribution to a demodulated navigation signal is calculated and subtracted from said demodulated navigation signal to obtain an estimated line of sight contribution to said demodulated navigation signal, and a propagation time .tau.0 is calculated from the thus calculated line of sight contribution to said demodulated navigation signal, such that a very accurate propagation time .tau.0 of said navigation signal can be calculated.
Patent CA-2112509-C (CA)
Inventor: ANDOH MITSURU
IPC: G06F9/46
Filed: 1993-12-29
Granted: 1999-07-20
Abstract: A Job step parallel execution control system in a computer system has a job control statement which can designate whether a job step is to be executed by a specifically designated host computer or by a arbitrarily selected host computer, whether parallel execution of the job step while other job step in the same job is in execution, and/or whether the job is to be continued, to be forcedly terminated or to be terminated after termination of the other job step of the job currently in execution, upon commanding execution of the job step.  Upon execution of the job, the job control statement is sequentially decoded to efficiently control parallel execution and termination of execution of the job step.
Patent CA-2113968-C (CA)
Inventor: MANO JUNICHI
IPC: C10M177/00
Filed: 1994-01-21
Granted: 2000-05-30
Abstract: The improved version of a chromated metal sheet has a chromate layer on at least one side of a metal substrate or a plated metal substrate and it is characterized in that the chromate layer has a chromium deposit of 10 - 200 mg/m2 per surface in terms of metallic Cr, that the chromate layer contains silica in an amount of 0.1 - 6.0 in terms of the weight ratio of SiO2 to Cr, and that the chromate layer contains at least one kind of lubricating particles selected from the group consisting of graphite, MoS2, BN, calcium stearate and an organic lubricating substance in an amount of 0.1 - 100 in terms of the weight ratio of the lubricating particles to Cr.      In place of lubricating particles may be preferably used lubricity imparted particles having a surface layer capable of nonionic surface activating action and this surface layer accounts for 1 - 70 wt% of the lubricity imparted particles.      The chromated metal sheet has sufficient lubricity to withstand press forming in the absence of lube oil coatings, has high enough electric conductivity to present no problems in spot weldability and groundability, and has sufficiently high corrosion resistance to withstand use in a naked state.
Patent CA-2114195-C (CA)
Inventor: RICKETTS ROBERT ALAN
IPC: A61G1/01
Filed: 1994-01-25
Granted: 2006-04-11
Abstract: A patient rescue bag is provided with an upper portion and a lower portion for use in carrying an injured person from a remote location that is not accessible by normal emergency vehicles. Once the injured person is placed between the upper and lower portions of the patient rescue bag, that person may be easily carried by rescue workers while being kegt comfortable and warm. In addition, each of the outer edges of the upper and lower portions can be detached from one another so that the patient can be reached from any location around the periphery of the patient rescue bag. By use of multiple strips of hook and loop fastener material, such as VELCRO®, the width of the patient rescue bag can be adjusted to the size of the injured person being carried. The outer materials of the patient rescue bag axe weatherproof and reusable, and the inner materials that touch the patient are clean, disposable sheets similar to those used in hospitals. An insulative core made of down is provided within the weatherproof exterior of the patient rescue bag, thereby enabling the patient to be kept warm even in cold climates. The insulative core is available in other materials, such as cotton, for use in warmer climates.
Patent CA-2114493-C (CA)
Inventor: DAHN JEFFREY RAYMOND
IPC: H01M6/10
Filed: 1994-01-28
Granted: 1999-01-12
Abstract: Divulgation d'une méthode pour augmenter la capacité inversible de matières à base d'oxydes mixtes lithium-métal de transition, utilisées comme cathodes dans des piles au lithium non aqueux. Cette méthode fait intervenir la réduction des matières à base d'oxydes de formule LixMyOz, dans laquelle M représente un métal de transition. L'oxygène est éliminé tout en conservant la phase originale de cette matière. Cette méthode est particulièrement utile pour les matières à base d'oxyde synthétisées à basse température et dans lesquelles M est du Mn.
Patent CA-2115997-C (CA)
Title: Thermoformable composite sheet
Inventor: ZAFIROGLU DIMITRI PETER
IPC: B29C51/14
Filed: 1991-08-20
Granted: 2002-01-08
Abstract: An improved shaped article comprising a thermoformed composite sheet (20), which is a layer of thermoplastic polymer (22) attached to a surface of a lightweight conformable fabric (24), the other surface of the fabric being attached to a layer of rigid foam (30), provides the article with improved wall thickness uniformity and impact resistance.
Patent CA-2119739-C (CA)
Title: Catalyst for ethylene polymerization at high temperatures
Inventor: ZBORIL VACLAV GEORGE
IPC: C08F210/16
Filed: 1992-09-25
Granted: 2003-05-27
Abstract: A solution process for the preparation of high molecular weight polymers of alpha-olefins selected from the group consist-ing of homopolymers of ethylene and copolymers of ethylene and C3-C12 higher alpha-olefins is disclosed. The process com-prises feeding monomer selected from the group consisting of ethylene and mixtures of ethylene and at least one C3-C12 higher alpha-olefin, a coordination catalyst and inert hydrocarbon solvent to a reactor, polymerizing said monomer at a temperature in the range of 105-320 °C and recovering the polymer so obtained. The coordination catalyst is formed from MgR1 2 and AlR2 3 in which each R1 and R2 are the same or different and are alkyl groups having 1-10 carbon atoms; a reac-tive chloride component; a titanium compound selected from titanium tetrachloride, titanium tetrabromide and a com-pound of the formula Ti(OR)x in which x = 0-4 and R is an alkyl group having 1-10 carbon atoms; and an alcohol.
Patent CA-2123315-C (CA)
Inventor: SEBALD WALTER
IPC: C12N15/24
Filed: 1992-11-13
Granted: 2003-06-17
Abstract: The invention relates to therapeutic agents which are antagonists or partial agonists of human interleukin 4, or contain these antagonists or partial agonists, to mutant hIL-4 proteins and to processes for their prepara-tion.
Patent CA-2124652-C (CA)
Inventor: SMITH JEREMY P
IPC: B65D83/14
Filed: 1994-05-30
Granted: 1997-07-15
Abstract: An aerosol valve has a body with a circular side wall extending down beyond the floor of the body to define a socket. Into this socket is frictionally engaged a symmetrical appendage having a circular upper end and a tailpiece at its lower end. The body is vertically partitioned into a primary product passage communicating from the tailpiece upward through an opening in the floor of the main valve.  On the other side of the partition the lower end of the chamber is provided with a valve seat with an opening communicating with the primary passage.  A side opening is formed through the appendage above the valve seat, and a ball is adapted to seat on the valve seat when the container is in normal position.  When the container is inverted, the ball drops away from the seat and permits passage of product through the side opening, through the valve seat opening into the primary passage and up into the valve for discharge.
Patent CA-2127891-C (CA)
Inventor: TORONTO RUSSELL A
IPC: A61F5/02
Filed: 1993-02-19
Granted: 2001-05-29
Abstract: An orthopedic ankle brace (10) is provided having a pliant boot (12) that surrounds the ankle joint (14), as well as the foot (22) and lower leg (18) in the region thereof. The boot (12) may incorporate means of applying compression to the ankle joint (14). Attached to the boot (12) are a pair of adjustable tension straps (46, 48) vertically disposed about the ankle joint (14) for restricting the mobility thereof. Integral with the boot (12) are pair of stiffening members (104a, 104b) positioned about the ankle joint (14) to cooperate with the tension straps (46, 48) in the performance of their mobility restricting function. Further provided integral with the boot (12) are retention members (106a,106b) that isolate the malloeli from the stiffening members (104a, 104b) for the comfort of the wearer. Finally, one or more retention straps (64, 66) are provided to maintain the stability of the brace (10).
Patent CA-2133335-C (CA)
Inventor: BLOOM DAVID M
IPC: B81B3/00
Filed: 1993-04-28
Granted: 2003-03-18
Abstract: A modulator (10) for modulating incident rays of light, the modulator having several equally spaced beam elements (18), each having a light reflective planar surface. The beam elements are arranged and supported (12) parallel to each other, with their reflective surfaces parallel. During operation, the elements remain parallel, but the modulator moves the beams so that the per-pendicular spacing of their reflective surfaces changes between two configurations. In both configurations, the spacing equals m/4 times the wavelength of incident light. In the first configuration, m equals an even whole number or zero, and the modulator acts to reflect the incident rays of light as a plane mirror. In the second configuration, m equals an odd number and the modula-tor diffracts the incident rays as they are reflected.
Patent CA-2136685-C (CA)
Inventor: LUCKMAN THOMAS
IPC: A61F2/46
Filed: 1994-11-25
Granted: 2006-01-24
Abstract: A new set of surgical instruments is described which provides a movable constraint such that the instruments include a saw guide which may be used in either a constrained or unconstrained fashion. The instruments have a movable restraint which, in the down position provides a continuous surface with the remainder of the instrument for guiding a saw, and when in the up position provides a constrained slot for guiding the saw of a surgeon in making cuts in prosthesis implantation surgery.
Patent CA-2138657-C (CA)
Title: Absorbent hydrogel fines in absorbent structures
Inventor: PLISCHKE MANFRED
IPC: A61F13/20
Filed: 1993-06-22
Granted: 1998-08-18
Abstract: (see fig. I) The present invention relates to absorbent structures (10) for disposable absorb ent articles containing absorbent hydrogel particles (75). More particularly, the invention relates to absorbent structures (10) having the absorbent hydrogel particles (75) distributed such that essentially only particles of less than 105 micrometers ar e distributed in a dusting layer (2), which in a disposable absorbent article is adjacent the backsheet side of the absorbent article, and p articles of 105 micrometers or larger are distributed in a primary layer (1).
Patent CA-2139470-C (CA)
Inventor: MARCOU JEAN-CLAUDE
IPC: H01H83/04
Filed: 1995-01-03
Granted: 1999-01-26
Abstract: A ground fault interrupter (gfi) wiring device includes a latch  member  having  integral  abutment,  latching  and  spring portions.  In the preferred embodiment, the latch member is formed from a unitary blank of springy sheet metal, the spring portion being a leaf spring formed at one end and biasing the latch member to a latching position to maintain the moveable contact(s)  in circuit-making relation with the fixed contact(s) of the device.          The latch member is released to permit circuit-breaking movement of the moveable contact(s) by a solenoid having an armature with a relatively enlarged head portion to enhance speed of operation.          Optionally, a spring may be provided to maintain the otherwise freely-slidable armature with its end portion in spaced relation to the latch member abutment portion so that the armature gains momentum  before  contacting  the  abutment  portion  to  effect unlatching movement of the latch member.
Patent CA-2142707-C (CA)
Title: Benzo-fused lactams promote release of growth hormone
Inventor: WYVRATT MATTHEW J
IPC: A61K38/25
Filed: 1993-08-18
Granted: 1997-12-30
Abstract: There are disclosed certain novel compounds identified as benzo-fused lactams which promote the release of growth hormone in humans and animals. This property can be utilized to promote the growth of food animals to render the production of edible meat products more efficient, and in humans, to increase the stature of those afflicted with a lack of a normal secretion of natural growth hormone. Growth promoting compositions containing such benzo fused lactams as the active ingredient thereof are also disclosed.
Patent CA-2144266-C (CA)
Title: Binocular type display system
Inventor: KAWAMURA AKIRA
IPC: G02B27/22
Filed: 1995-03-09
Granted: 2005-10-25
Abstract: To relieve fatigue of viewer's eyes, a binocular display system is equipped with a mechanical or electrical adjusting section for minimizing a separation between left and right virtual images for the left and right eyes. The adjusting section holds the arrangement of the four positions of left and right lenses (or curved mirrors) and left and right pictures produced by at least one display device in such a manner as to reduce the separation between the left and right virtual images of the left and right picture substantially to zero, and/or adjusts the arrangement of these four positions to move the left and right virtual images in a desired direction so that the left and right images remain optically coincident.
Patent CA-2145739-C (CA)
Inventor: SHANKWITZ HAROLD JOHN
IPC: H02K29/00
Filed: 1995-03-28
Granted: 2000-02-08
Abstract: A brushless permanent magnet motor for use within a electric submergible pumping system is controlled without utilizing rotor position sensors, by sampling the voltage of the motor's windings. The operation of the motor is governed by control circuits that provide signals representative of the winding EMFs. The control circuits utilize an integrator, a offset corrector, and a crossover detector to simulate outputs received from Hall effect devices. Outputs from the control circuits are used to sequentially gate an array of commutation transistors to apply power to the different windings. These outputs are also used to develop a tachometer signal to regulate the speed of the motor, by controlling the supply voltage to the commutation transistors. Prior to starting the motor, the output bus voltage is permitted to rise from zero volts to a predetermined level. Then, the rotor rotates to a predetermined home position with regard to the stator. During this time, integrators are precharged to assist crossover detectors in establishing the initial timing relationship between the three motor phases. As the motor begins to rotate, the motor control is performed by detecting and processing winding EMFs, and operating the motor in a brushless D.C. mode.
Patent CA-2147540-C (CA)
Inventor: REHBOLD BODO
IPC: D01D5/08
Filed: 1995-04-21
Granted: 2006-10-24
Abstract: The invention relates to a process for the solventless production of elastic filaments based on segmented poly(urethane)s or polyurethane (urea)s having improved thermal properties and, hence, improved processing behavior, for example during the heat setting of fabrics containing the elastic fibers, by the use of a polyisocyanate containing isocyanurate groups in the reaction of long-chain, relatively high molecular weight polyhydroxyl compounds with organic diisocyanates and low molecular weight diols and, optionally, other auxiliaries and additives in the melt, direct spinning of the reaction mixture thus obtained and thermal aftertreatment of the elastic filaments obtained and also to the filaments obtainable by this process.
Patent CA-2153033-C (CA)
Title: Intelligent based selective call forwarding
Inventor: CARLSEN RALPH
IPC: H04M1/00
Filed: 1995-06-29
Granted: 1998-12-29
Abstract: A telephone subscriber who wishes to forward calls placed to that subscriber from a selected set of calling parties identifies the current destination number to a service adjunct. The service adjunct, in turn, transmits the destination number to the intelligent terminals of preselected parties while those intelligent terminals are in an inactive (i.e. on-hook) mode, for storage in a local memory contained in those terminals. Thereafter, when the usual number of the telephone subscriber is "dialed" (e.g., entered on the keypad) at any one of the intelligent terminals, the stored destination number is retrieved and output to the telecommunications network in place of the usual number. The actual destination number is also displayed to the calling party who then has the option to let the call complete or disconnect to stop the call.