baber/WOPTO huggingface dataset:
Patent CA-2037211-C (CA)
Title: Synthesis and elucidation of azamitosene and iminoazamitosene
Inventor: SKIBO EDWARD B
IPC: C07D487/04
Filed: 1991-02-27
Granted: 1999-09-21
Abstract: The synthesis of 2,3-dihydro-1H-pyrrolo[1,2-a] benzimidazole-5,8-diones (azamitosenes) was carried out in conjunction with the design of potential DNA crosslinkers activated by reduction (reductive alkylation). These quinones resemble mitosene antitumor agents, but are based on the benzimidazole nucleus rather than the indole nucleus. Preliminary results indicate the azamitosenes are potent antitumor agents. Iminoquinone derivatives of azamitosenes (iminoazamitosenes) were synthesized as reductive alkylating agents exhibiting low oxygen toxicity. The iminoazamitosenes are hydrolytically stable in neutral buffers and undergo buffer catalyzed syn/anti isomerization at the imino center. Electrochemical and oxygen reactivity studies in aqueous buffers indicate the change from quinone to iminoquinone is accompanied by an increase in reduction potential and a decrease in oxygen reactivity of the corresponding reduced species.
Patent CA-2037939-C (CA)
Title: Systeme pour le pilotage d'un missile au moyen de jets gazeux lateraux
Inventor: MORGAND JEAN-PIERRE
IPC: F02K9/88
Filed: 1991-03-11
Granted: 2000-11-28
Abstract: Système pour le pilotage d'un missile (1) au moyen de jets gazeux, comportant un générateur de gaz (9) susceptible d'être relié à au moins une paire de tuyères latérales (8) par l'intermédiaire de moyens d'obturation rotatifs (14), mobiles sous l'action de moyens moteurs (30) et commandant le passage des gaz à travers lesdites tuyères. Selon l'invention, ce système est caractérisé en ce que: - à chaque tuyère (8) est associé un obturateur rotatif individuel (14); - chaque obturateur (14) est commandé en rotation par le piston (31) d'un vérin (30), dont une chambre (38a) reçoit une partie du gaz engendré par ledit générateur de gaz (9), la position dudit piston étant commandée par le contrôle du débit dudit gaz à travers ladite chambre (38a); - les chambres (38b) desdits vérins (30), opposées à celles (38a) recevant lesdits débits de gaz, sont reliées entre elles par un circuit de couplage (39) contenant un fluide incompressible sous pression ; et - le volume dudit fluide incompressible sous pression est choisi pour qu'un des obturateurs (14) puisse être en position d'ouverture complète de la tuyère (8) associée, lorsque tous les autres obturateurs obturent complètement les tuyères qui leur correspondent.
Patent CA-2038755-C (CA)
Title: Solid oxide fuel cells
Inventor: ISHIHARA TAKESHI
IPC: H01M8/02
Filed: 1991-03-21
Granted: 1997-04-01
Abstract: A solid oxide fuel cell has a plurality of cylindrical solid oxide fuel cell elements.          Each of the fuel cell elements at least has a fuel electrode, a solid electrolyte and an air electrode.          A multi-contact point type current-collecting member is contacted to the fuel electrodes.  The fuel electrode of a certain fuel cell element is electrically connected to the air electrode of a solid oxide fuel electrode adjacent to this certain fuel cell element through the multi-contact point type current-collecting member and an interconnector.  The multi-contact point type current-collecting member is contacted with the substantially entire surface of the fuel electrodes.
Patent CA-2040602-C (CA)
Title: Disposable training pants
Inventor: IGAUE TAKAMITSU
IPC: A61F13/15
Filed: 1991-04-16
Granted: 2002-02-12
Abstract: Here is disclosed disposable baby training pants basically comprising a liquid-permeable inner sheet, a liquid-impermeable outer sheet and, if necessary, a liquid absorbent core sandwiched therebetween, wherein at least a part of the inner sheet is formed from hydrophilic material to define a wetness sensing zone so that, when a baby having the training pants on excretes, the inner surface of the training pants is wetted and the baby senses this.
Patent CA-2044661-C (CA)
Inventor: BINGOLD RICHARD F X
IPC: E05B75/00
Filed: 1991-06-14
Granted: 1997-01-21
Abstract: A two-loop strap restraint for law enforcement is lightweight, strong, inexpensive, disposable, and can be formed entirely of recyclable polymeric material, and is easy to apply and carry. This restraint has a pair of apertures in its central bridging portion for curling into a compact four-loop configuration for easily carrying several of them in an unobtrusive, concealed manner in a pocket. The restraint fits all size wrists, ankles for use in a wide variety of law enforcement situations. It has the general form of a single non-metal elongated strap of polymeric material having a pair of symmetrically positioned latching socket bosses of polymeric material located near the center of the strap with a resilient latching pawl formed of polymeric material positioned in each socket. A flexible ratchet portion of the restraint extends outwardly from each socket boss with a narrow tip pull extending outwardly from the ratchet portion to a rounded tip. In use, a tip pull is inserted through a socket opening. The resilient pawl allows the flexible ratchet portion to be drawn forwardly in an insertion direction through the socket for engaging snugly around a wrist, ankle or anchoring member, then the pawl prevents the inserted ratchet portion of the strap restraint from being moved backwardly from the socket in an extraction direction for securely holding a restrained limb (arm or leg). The socket bosses project solely toward the outside of the restraint for facilitating quickly, properly inserting tip pulls into socket mouths in the dark.
Patent CA-2052770-C (CA)
Title: Method and apparatus for selective reduction of upper harmonic content and digital synthesizer excitation signals
Inventor: LISLE RONALD JAY
IPC: G10H1/14
Filed: 1991-10-04
Granted: 1996-01-30
Abstract: Variable  frequency sawtooth waveforms are often utilized  as  an  excitation  signal  in  a  digital  musical synthesizer.  A problem exists at lower sampling rates in such systems due to an aliasing problem which occurs at frequencies near the Nyquist rate.  Low pass filtering may be  utilized  to  mask  this  problem;  however,  low  pass filtering is very time consuming to implement in a digital signal processor.  The method and apparatus of the present invention reduces the upper harmonic content of a sawtooth waveform by proportionally converting the sawtooth waveform to a triangle waveform in response to variations in the frequency of the sawtooth waveform.  This is accomplished by adding a selectable offset to the sawtooth waveform and then taking the absolute value of the resultant waveform.   By restoring  this  waveform  to  a  zero  offset,  the  sawtooth waveform excitation signal will be converted to a triangle waveform  having  a  substantially  reduced  upper  harmonic content.  By varying the selectable offset in response to variations in the frequency of the sawtooth waveform, it is possible to efficiently vary the amount of conversion which occurs.
Patent CA-2059221-C (CA)
Title: Feed additive for ruminants
Inventor: UEDA SATOSHI
IPC: A23K1/00
Filed: 1992-01-13
Granted: 2001-11-20
Abstract: A biologically active substance which is stabilized while passing through the rumen and is released in the abomasum and its subsequent digestive tract, and is digested and absorbed with good efficiency. This is made possible by providing a feed additive far ruminants which is prepared by coating cores containing a biologically active substance, with a coating composition comprising lecithin, at least one inorganic substance which is stable under neutral conditions and soluble under acidic conditions, and at least one substance selected from the group consisting of straight-chain or branched-chain saturated, or unsaturated mono-carboxylic acids having 14 to 22 carbon atoms or salts thereof, hardened vegetable oils, hardened animal oil and waxes.  The biologically active substances thus processed can be effectively digested and absorbed by ruminants.
Patent CA-2065698-C (CA)
Title: 14-crown-4-ether derivatives
Inventor: ENGEBRECHT RONALD H
IPC: C07D405/12
Filed: 1992-04-08
Granted: 1997-01-28
Abstract: Named comounds are useful in making dry analytical elements for assaying lithium in serum,  The compounds have the general structure:
Patent CA-2068962-C (CA)
Title: Missile control fin actuator system
Inventor: DELAIR CHARLES M
IPC: F42B10/64
Filed: 1992-05-19
Granted: 1996-11-05
Abstract: A  control  fin  actuator  (28)  for  a guided missile   (20)  includes  a  pressure  actuator  (40) having  a  slidable  piston  (44)  inside a  housing (42).    Rolling  diaphragm seals (50, 56) of the top piston  face  (46) and the bottom piston face (48) to the  inside  wall  of  the  housing  (42)  divide the interior  of  the  housing  (42)  into  at  least two chambers  (54, 58).  The rolling diaphragm seals (50, 56)  eliminate  sliding  friction  as the piston (44) moves  within the housing.  The two chambers (54, 58) are  controllably  pressurized  to  slide  the piston (44)  within  the housing (42), thereby moving a push rod  (78)  attached  to the piston (44) and extending out  of the  housing  (42).    The  push rod (78) is connected  to a missile control fin output shaft (24) by  a  taut band connector (80) that avoids backlash. A  magnet (86) may be positioned adjacent to the push rod  (78)  to  induce  eddy  currents in the push rod (78),   thereby   providing   a  damping  force  that increases   with   increasing   rate   of   movement. Pressure  in  the control chamber (54) is achieved by operating  the inlet valve (70) and the exhaust valve (72)  in  response  to  feedback  information  from a rotary   position  sensor  (29),  a  linear  position sensor (88), and/or pressure sensors (90, 92).
Patent CA-2073823-C (CA)
Inventor: JOGLEKAR MANOHAR A
IPC: H04W88/02
Filed: 1992-07-14
Granted: 1997-09-16
Abstract: A communication system comprised of a transceiver (101) for transmitting and receiving data signals and a modulation/demodulation apparatus (102) to modulate the data signals from an accessory (109) for transmission and demodulate data signals after reception by the transceiver (101). A processing device (103) controls power to the various components of the communication system.
Patent CA-2076746-C (CA)
Title: Pick-up device for loads
Inventor: NIJENHUIS DERK
IPC: B62B5/00
Filed: 1991-02-25
Granted: 1999-05-04
Abstract: An improvement has been invented for a pick-up device for loads, having means fo r engaging on the load and lifting it at one end over a low height, with one or more rollers so that the load can then be shifted with the pick-up device relative to a bearing face over which the rollers can move bearing the load. The improvement m eans that the engagement devices (6) can engage on the load (7) at a distance from the axis (17) of the rollers (3), and that the d evice (1) has engagement devices (4) for a flexible pulling element (22) such as a cable or chain, in order to move the load (7) wit h said pick-up device (1) over said bearing face, which engagement devices (4) for said pulling element are also situated at a distance from the axis (17) of the rollers (3), in such a way that the pulling force of a pulling element (22) engaging thereon tries to swing the pick-up device (1) relative to the rollers (3) in the direction in which the load (7) is thus being lifted. Said engagement device s (6) preferably engage in a pivoting manner on the further device (1) with bearings for the rollers on an eccentric shaft (18) lyin g parallel to the axis (17) of the rollers (3) and at a distance from them between said axis (17) and the engagement point on the load ( 7), while a cam (15, 16) is fitted both on said further device (1) and on said engagement devices (6), said cams being placed in such a way that when, under the influence of the pulling element (22), said further device is rotated about the axis (17) of the rollers (3) in the direction of lifting of the load (7) said cams (15, 16) come out of a position at a distance from each other into con tact with each other. As a result of this improvement, the load is lifted first of all with one and the same pulling element, following which it is moved onto the bearing face with increasing driving force of the pulling element.
Patent CA-2079241-C (CA)
Inventor: GARNER-GRAY PETER F
IPC: A23L27/00
Filed: 1992-09-28
Granted: 2005-09-13
Abstract: A fabric treatment composition containing surfactant or fabric softener and also comprising porous inorganic carrier particles having a perfume absorbed into said particles. The particles have at least a pore volume of 0.1 ml/g consisting of pores with a diameter of 7 to 50.ANG..
Patent CA-2081695-C (CA)
Inventor: HUGHES GREGORY G
IPC: F28F17/00
Filed: 1992-10-29
Granted: 2002-01-22
Abstract: An improved evaporator or evaporator/condenser for use in refrigeration or heat pomp systems including first and second spaced, pressure resistant headers (10, 12); a plurality of elongated tubes (20) of flattened cross-section extending in parallel, spaced relation between and in fluid communication with the headers (10, 12) and serpentine fins (34) extending between and bonded to adjacent ones of the tubes (20). the tubes (20) and fins (34), between the headers (10, 12), define a non-planar configuration having an apex (80). A condensate trough (82) is aligned with and opens towards the apex (80) to receive condensate dripping therefrom.
Patent CA-2082135-C (CA)
Title: Magneto-optical disk reproducing intensity control system
IPC: G11B11/10
Filed: 1992-11-04
Granted: 1999-03-09
Abstract: A magneto-optical disk, which possesses a disc-shaped substrate and a recording layer composed of a perpendicular magnetization film that is formed on the substrate, has an area wherein magnetic domains having an upward magnetization and magnetic domains having a downward magnetization are alternately aligned along at least one circuit of the disk. The area is formed on the recording layer.   The length of the magnetic domains having the upward magnetization are virtually equal to the length of the magnetic domains having the downward magnetization.  Another form of the invention is a reproducing method in which, when information is reproduced by projecting a light beam onto the magneto-optical recording disk, the intensity of the light beam is adjusted so as to maximize the amplitude of a reproduced signal that is obtained from the area. With the above arrangement, a high-quality reproduced signal can be obtained independent of the characteristics of individual magneto-optical disks.
Patent CA-2086017-C (CA)
Inventor: DARMONT JACQUES
IPC: B01D9/02
Filed: 1991-06-12
Granted: 2000-11-28
Abstract: A method and an apparatus for crystallizing a mineral substance in a fluidized bed of crystals (14) generated by circulating a supersaturated solution of the substance to be crystallized upwards through a fluidized bed reactor distributor (12) located under the bed (14), whereafter a fraction (22) of the supersaturated solution is drawn off upstream from the distributor (12) and recycled downstream therefrom in the fluidized bed (14) or the mother liquor of crystallization, and said mother liquor is supersaturated to recreate the above-mentioned supersaturated solution.
Patent CA-2086628-C (CA)
Title: Therapeutic method and apparatus for effecting translatory continuous passive motion of the temporomandibular joint
Inventor: MCCARTY WILLIAM LORING JR
IPC: A63B23/03
Filed: 1992-08-25
Granted: 1996-04-30
Abstract: A therapeutic method for rehabilitating the temporomandibular joint by induction of translatory motion of the joint either post-operatively or as therapy for a variety of conditions, the invention also contemplates apparatus capable of practicing the present method by continuously and passively moving the joint in a translatory sense.
Patent CA-2087502-C (CA)
Title: Method and apparatus for evolving a starter set of handwriting prototypes into a user-specific set
Inventor: CHEFALAS THOMAS E
IPC: G06K9/68
Filed: 1993-01-18
Granted: 1996-05-14
Abstract: A method for use in a handwriting recognition system, and apparatus for accomplishing the method,  that generates a User set of prototype symbols.  The method includes the steps of  (a)  inputting one or more  strokes for representing a predetermined symbol;  and (b) comparing characteristics of the inputted strokes to stroke characteristics associated with one or more predetermined Starter prototype symbols. If the stroke characteristics match to within a predetermined threshold,  the  method  further  includes  a  step  of  (c) averaging the  characteristics  of  the  inputted  stroke  or stroke with the characteristics of a corresponding one or ones of the  strokes of the matching one of the Starter prototype symbols to form a User prototype symbol.  Further steps  include  (d)  storing the User prototype  symbol  for subsequent  use;  and  (e) deleting  one  or  more  Starter prototype symbols of the same label as the input symbol. If the stroke characteristics do not match, the method further includes the steps of (f) storing the characteristics of the one or more inputted strokes as the User prototype symbol for subsequent use; and (g) deleting the one or more Starter prototype symbols.  A counter is maintained and deletes the Starter set only after a predetermined number of instances of the symbol have been entered by the user.
Patent CA-2093271-C (CA)
Title: Multiphase thermoplastic composition based on a polyamide resin containing an epoxide functional ethylene polymer
Inventor: HERT MARIUS
IPC: C08L33/04
Filed: 1993-04-02
Granted: 1999-01-12
Abstract: Multiphase thermoplastic composition based on polyamide resin containing at least one ethylene/alkyl (meth)acrylate/unsaturated epoxide terpolymer.
Patent CA-2102769-C (CA)
Title: Encapsulated acid composition and process for preparing and using same
Inventor: RODRIGUEZ VALMORE
IPC: C09K8/72
Filed: 1993-11-09
Granted: 1998-04-14
Abstract: An encapsulated acid composition includes an aqueous solution of acid encapsulated in a polymeric material which is chemically resistant to the acid in the aqueous solution of acid and which polymeric material is substantially impermeable to water and acid.  The composition is prepared according to a process including the steps of forming an emulsion having a continuous phase of oil and a dispersed phase of an aqueous solution of acid; mixing the emulsion with a polymer which is soluble in said oil and insoluble in the aqueous solution of acid, the polymer being chemically resistant to the acid in the aqueous solution of acid and the polymer being substantially impervious to the acid and to water; and mixing the emulsion and the polymer with a cross-linking agent so as to encapsulate droplets of the dispersed phase of the aqueous solution of acid in a cross-linked polymer encapsulant.
Patent CA-2104329-C (CA)
Title: Folding portable play enclosure for children
Inventor: LEE-BAKER ELIZABETH
IPC: A47D13/06
Filed: 1993-08-18
Granted: 1997-11-11
Abstract: A folding portable play enclosure for children includes a plurality of panels connected in a series in an accordion-fold manner by a plurality of folding joints.  The panels are formed by cardboard sheets sandwiched between inner and outer flexible vinyl layers.  The folding joints are formed by the provision of spaces between the ends of each adjacent pair of cardboard sheets in the series.  First indicia on one face of each of the panels simulates an exterior appearance of a home and includes trees, exterior windows, exterior doors, and fences, for example.  Second indicia on an opposite face of the panels simulates an interior appearance of a home and includes furniture, interior windows, interior doors, and bookshelves, for example.          Cooperating snap fasteners allow the enclosure to be selectively secured in an erected orientation forming a closed play space or in a compact collapsed orientation for transportation and storage.  A handle provided on one of the panels allows the enclosure to be conveniently carried in the collapsed orientation.
Patent CA-2109078-C (CA)
Inventor: JOSEPH EUGENE G
IPC: D04H3/16
Filed: 1992-08-11
Granted: 2002-02-05
Abstract: A high modulus nonwoven web is produced using a high modulus material and a self-bonding material formed as multi-layer melt-blown microfibers where the web modulus is greater than MX1 + MX2 where M1 and M2 represent the modulus va-lues of webs formed from the two materials and X1 and X2 represent the respective volume portions of the materials in the web fibers.
Patent CA-2113388-C (CA)
Inventor: O'CONNOR JOHN L
IPC: B67D3/00
Filed: 1994-01-13
Granted: 1997-12-30
Abstract: An apparatus for dispensing liquids directly from a vertically oriented inverted container containing a liquid comprises a body adapted to receive and secure the open mouth of the container and defining a pair of spaced chambers with a first chamber communicating directly through the mouth with the liquid in the container and the second chamber communicating directly with the ullage volume of the container via a hollow tube-like member.  The body further defines first and second spaced passageways that communicate with the respective chambers.  The first passageway is vertically aligned beneath said first chamber so as to permit unimpeded flow of liquid therethrough when open. A pair of valves is adapted to selectively open and close the first and second passageways.  Finally, a valve control mechanism is operative linked to the valves and sequentially opens the second valve and then the first valve to permit the unimpeded equilibration of the pressure in the ullage volume prior to the unimpeded dispensing of fluid from the bottle to the awaiting receptacle.
Patent CA-2118562-C (CA)
Inventor: HARMS JUERGEN
IPC: A61B17/60
Filed: 1994-03-08
Granted: 1998-05-05
Abstract: A bone screw comprises a receiver member (5) and a screw member (1) having a threaded portion (2) and a head (3) having a spherical segment-shaped portion.  The receiver member (5) comprises an internal thread (10) for allowing a relative adjustment of receiver member and screw member and the connection of the receiver member with a round rod.  A pressure means (12) acts onto the head (3) and the rod (16) is placed on top of the pressure means.  The arrangement is locked by means of a rod locking nut (13) and a lock nut (14) is screwed onto an external thread (11).
Patent CA-2131612-C (CA)
Title: Bonding agent based on tannin
Inventor: DOMBO BERTHOLD
IPC: B27N1/02
Filed: 1994-09-07
Granted: 2001-02-20
Abstract: The present invention relates to new bonding agents that harden at higher temperatures and are compatible with materials, such as wood, that contain cellulose, and are suitable for manufacturing wood materials such as chip boards. They consist of tannins and weakly acid reacting compounds.
Patent CA-2132721-C (CA)
Title: Biodegradable compositions produced by reactive blending of synthetic and naturally occurring polymers
Inventor: VAIDYA UTPAL R
IPC: C08H1/00
Filed: 1993-03-23
Granted: 2005-01-04
Abstract: A biodegradable interpolymer and composition is prepared by the reactive blending of a synthetic polymer having functional groups with a naturally occurring biodegradable polymer such as a carbohydrate or protein compound. During reactive blending, the synthetic polymer can undergo a chemical reaction with the biodegradable natural polymer which results in covalent and physical bonding between the two polymers, thereby forming an interpolymer. By this process, a biodegradable interpolymer composition is produced that is suitable for molding various articles.