baber/WOPTO huggingface dataset:
Patent CA-2123334-A1 (CA)
Title: Method and apparatus for the production of interlocking concrete blocks
Inventor: YAGOS RUDY
IPC: B28B1/08
Filed: 1994-05-11
Abstract: Interlocking concrete blocks have long been recognized as an efficient construction material for the fast erection of a variety of buildings. A new method and apparatus for the production of such blocks is described herein and comprises a gravity fed chute having a cut-off mechanism, directing a mixture stream of sand, gravel and cement to a holding bin, which bin is mounted upon a fixed platform and is slidingly movable thereupon under the control of a hydraulic cylinder assembly. The holding bin conveys a predetermined volume of vibrated mixture to a mould where the mixture is deposited and compressed. The newly formed block is ejected by means of ejection pins or fingers protruding into the base of the mould. The block is then conveyed to a kiln for drying. Production throughput is greatly enhanced and a single mould is used with only the addition of a fresh male bottom plate required for each mould charge.
Patent CA-2123658-A1 (CA)
Title: Inducing Tilted Parallel Alignment in Liquid Crystals
Inventor: SMITH WILLIS H JR
IPC: G02F1/13
Filed: 1994-05-16
Abstract: A substrate is treated prior to use to induce a near-parallel orientation of a liquid crystal director relative to the substrate.  A layer of silica is deposited on the substrate by in-line magnetron sputtering as the substrate is moved past the sputtering target, and the silica-coated substrate is thereafter treated with an alcohol that is selected from one of two classes of alcohols: (1) alcohols having an aromatic ring structure on one end of an aliphatic chain and a hydroxy group on the other end, with or without at least one ether group in the chain, and (2) an aliphatic chain having a hydroxy group at one end and at least one ether linkage in the chain.  An example is 2-phenylethanol.  The alcohol-treated substrate is covered with a layer of the liquid crystal.   The process of the invention induces a tilt to the director of the liquid crystal.   The tilt is about 0.5° to 4°, as measured parallel to the surface of the substrate.
Patent CA-2124421-A1 (CA)
Title: Substituted succinimides
Inventor: DOENGES REINHARD
IPC: C07D207/404
Filed: 1994-05-26
Abstract: Abstract of the Disclosure:            Substituted succinimides The present invention relates to succinimides of the formula                 (I) in which R1 and R2, independently of one another, are hydrogen, C1-C24-alkyl, C2-C24-alkenyl, C6-C12-cycloalkyl, C6-C12-cyclo-alkenyl, C6-C12 - aryl, C1-24- alkoxy, C1- C14 - acyl, C1-C24-acyloxy, a hydroxyl, amino or sulfo group or a C1-C24-dialkylamino, C1-C24-acylamino, C1-C2,-alkylsulfato, C1-C24-alkylsulfonato, C1-C24,-alkylsulfito, C1-C24-alkylsulfinyl or C1-24-alkoxycarbonyl radical, and R3 is a polyhydroxyalkyl radical of the formula                   (II) in which R4 is - (CHOR7)n-H, R5 is - (CHOR7)m-H, R6 is - (CHOR7)o-H where n + m + o in 2-6, and R7 is H or a carbohydrate attached in the form of a glycoside from the series comprising reducing sugars, a process for their preparation and their use.
Patent CA-2125587-A1 (CA)
Inventor: WELLS MICHAEL L
IPC: H02K7/116
Filed: 1994-06-10
Abstract: A drive system comprising an integrated gearhead motor system that produces relatively high torque output with minimal backlash. The present invention uses two axially mounted electric or air motors and gearhead assemblies integrated into a single unit. The two motor and gearhead assemblies are connected to concentric output drive shafts, and each output shaft mates to a respective gear of a split gear assembly. The split gear assembly is coupled to a drive shaft of a device that is to be driven by the system. A tachometer is coupled between the first motor and a position sensor iscoupled to the drive shaft of the device that is to be driven. The tachometer and position sensor are coupled to a controller that is used to control the respective torques provided by the two motors in response to rate and position signals provided thereby. By controlling the relative amount of torque provided by the two motors, the split gear assembly removes the backlash from the gearheads and gear interfaces to the drive shaft of the device that is to be driven. The present invention incorporates the two motors and two gearhead assemblies into a single assembly, reducing weight and space requirements. The design of the present invention also permits retrofitting of the drive system into existing single motor drive systems.
Patent CA-2126478-A1 (CA)
Title: Hub for syringe, connecting structure of hub, syringe, piston, needle assembly unit, connecting structure between needle assembly unit and syringe, syringe of assembling syringe assembly assembly and method
Inventor: SAITO YOSHIKUNI
IPC: A61M5/32
Filed: 1994-06-22
Abstract: ABSTRACT       A syringe assembly has a hub body which can be inserted into a hub insertion hole and pulled out thereof into inside a sringe body.  A chamfer portion is formed at the hub body, being capable of engaging with the hub insertion hole.  A needle insertion hole capable of being inserted a needle therein is provided with an end face of the hub body in a direction of an axis center of the hub body.  A flow hole is provided with the hub body such that the needle insertion hole and an inside of the syringe body are communicated with each other in the direction of the axis center.  A piston engagement hole is provided on end face side of the hub body, so as to engage with the piston.  A seal taper is annularly formed at the hub body, such that its outside diameter is made narrower for the end face side, so as to abut on and contact with an inner face of the hub insertion hole.
Patent CA-2127088-A1 (CA)
Title: Bis(n-alkylaminocyclohexyl)methanes as curing agents for polyurethanes and polyureas
Inventor: HOUSE DAVID W
IPC: C08G18/32
Filed: 1994-06-29
Abstract: Bis(N-alkylaminocyclohexyl)methanes are excellent curing agents or chain extenders in the formation of polyurethane and polyurea polymers, both elastomers and coatings, from both monomeric polyisocyanates and isocyanate-terminated prepolymers. These chain extenders may be used alone or in combination with other polyamines and with polyols. A broad spectrum of unique polymeric material can be formed with a range of diverse properties.
Patent CA-2129054-A1 (CA)
Title: Conditioning hair with silicones
Inventor: CIFUENTES MARTIN E
IPC: A61Q5/00
Filed: 1994-07-28
Abstract: CONDITIONING HAIR WITH SILICONES                        ABSTRACT         Hair is conditioned by applying to the hair an effective amount of a composition which includes as the hair conditioning agent, from 0.5 to 5.0 percent by weight of a derivatized amine functional organosilicon compound which is one of (i) a reaction product of an amine functional polysiloxane and a derivative of carbonic acid; (ii) a reaction product of an amine functional polysiloxane and a lactone; (iii) a reaction product of an amine functional silane and a derivative of carbonic acid; or (iv) a reaction product of an amine functional silane and a lactone.
Patent CA-2132018-A1 (CA)
Inventor: HEYN LAWRENCE R
IPC: A61F2/06
Filed: 1993-02-23
Abstract: An apparatus (16) for deploying a radially self-expanding stent (18) includes proximal and distal sleeves (24, 30) respec-tively containing proximal and distal end regions (26, 38) of the stent in a reduced radius delivery configuration.  The sleeves can abut one another and thus contain the entire length of the stent, or may be used in combination with an outer catheter (158) sur-rounding the sleeves and containing the medial region of the stent.  In either event, once the stent and sleeves are positioned at the intended fixation site, the sleeves are moved axially with respect to one another to permit radial self-expansion of the stent initial-ly only over its medial region, while the sleeves continue to contain the axially outward regions of the stent.  Eventually, upon suf-ficient movement of the sleeves axially relative to one another, the stent becomes totally free of the sleeves, resulting in radial ex-pansion over the entire stent length. The axial relative movement of the sleeves can be controlled by two or more catheters (20, 44) mounted movably with respect to one another, one catheter integral with each of the sleeves.  Alternative arrangements for sepa-rating the sleeves include an externally threaded inner catheter (160), and a dilatation balloon (140) or membrane (206) expand-able to force the sleeves apart from one another.
Patent CA-2132145-A1 (CA)
Title: Afc circuit for qpsk demodulator
Inventor: TAGA NOBORU
IPC: H04L27/22
Filed: 1994-09-15
Abstract: ABSTRACT OF THE DISCLOSURE     AFC circuit for QPSK demodulator including, a circuit for obtaining quadrature related detection signals by multiplying a modulated input signal with quadrature related local oscillation frequency signals from a quadrature phase local oscillator, digital converter for converting the detection signals into corresponding digital signals by sampling them with quadrature related clocks which have a frequency two times higher than a symbol rate of the input signal, frequency error detecter for detecting a frequency error between the quadrature related digital signals using a symbol timing sample value and a symbol intermediate timing sample value in the converted digital signals, first validity determinator for determining whether the frequency error signal is valid or not through a detection of the pattern of the modulated input signal from sample values before and after the symbol timing so as to result a first validity signal, second validity determinator for deetermining whether the frequency error signal is valid or not through a detection of an absolute sample value of the symbol intermediate timing so as to result a second validity signal, and valid frequency error extractor for extracting the frequency error signal as a frequency control signal for controlling the oscillation frequency of the local oscillator when the frequency error signal has been proved to be valid by the first and the second validity signals.
Patent CA-2133371-A1 (CA)
Title: Circuit arrangement for demodulating a signal
Inventor: HORL MANFRED
IPC: H03D1/00
Filed: 1994-09-30
Abstract: A circuit arrangement is described for demodulating a useful signal (17), which is amplitude-modulated on a carrier oscillation, by means of an amplifier arrangement (1) comprising an operational amplifier (7) which has at least two input stages (55 to 58) which can be optionally switched actively by means of switching signals (at 65) and/or is connected to at least two input, output and feedback networks (13, 14, 33, 34, 36) which can be optionally switched actively by means of the switching signals in such a way that the amplifier arrangement (1) has at least two gains (V) which are differently predeterminable by the active operation of the individual input stages (55 to 58) and networks (13, 14, 33, 34, 36), respectively, and which operational amplifier further has an output stage (68) as well as a switching signal generating stage (4) for generating the switching signals from a control oscillation (at 5) whosefrequency constitutes a predeterminable, integral multiple of the frequency (1/T) of the carrier oscillation. Offsets or interference frequencies due to manufacturing tolerances can be avoided with such demodulators, while sensitivities to interference at higher harmonics of the carrier oscillations can be suppressed simultaneously.
Patent CA-2135527-A1 (CA)
Title: Object oriented notification framework system
Inventor: MATHENY JOHN R
IPC: G06F9/44
Filed: 1993-12-14
Abstract: A system for an object based notification system. The notification system is designed in a flexible manner to support change notification in an object oriented operating system. The change notification includes a memory for storing connection information including notification routing information and connection registration information. The connection registration information is stored in a connection object of the object-oriented system and the notification system updates the connection object with registration information indicative of enablement of disablement of notification. Then when a notification event is detected, the object-oriented operating system selectively notifies objects in the system based on the connection registration information stored in the connection object in the memory of the computer system.
Patent CA-2138282-A1 (CA)
Title: Process for the preparation of trialkyl compounds of group 3a metals
Inventor: SMIT CORNELIS J
IPC: C23C16/30
Filed: 1993-07-01
Abstract: Process for the preparation of trialkyl compound of a Group 3a metal, in which a Group 3a metal is contacted with an al-kyl halide in the presence of an alkali metal to obtain a trialkyl compound of the Group 3a metal and alkali-metal halide.
Patent CA-2140027-A1 (CA)
Title: Process for 2,5-diphenylterephthalic acid
Inventor: SUMNER CHARLES E JR
IPC: C07C51/265
Filed: 1993-08-02
Abstract: Provided is a process for preparing 2,5-diphenylterephthalic acid, which is useful in preparing certain polyesters, especially liquid-crystalline polyesters. In this process, p-xylene is di-alkylated with cyclohexene to provide 2,5-dicyclo-hexyl-p-xylene, which is in turn dehydrogenated to provide 2,5-diphenylxylene.  2,5-Diphenylxylene is then oxidized to provide 2,5-diphenylterephthalic acid by utilization of a cobaltous/manganous/bromide oxidation system.
Patent CA-2144024-A1 (CA)
Title: Reinforced absorbable polymers
Inventor: REILLY EUGENE P
IPC: C08L77/04
Filed: 1995-03-06
Abstract: A composition of an absorbable polymer and a filler to increase the stiffness of the polymer is disclosed. The   filler  is  a  poly[succinimide],   which  is   a bioabsorbable polymer  that  degrades  into  a  nontoxic, simple amino acid.  The composition can be melt processed to prepare medical and surgical devices,  particularly those  devices which are designed to penetrate bodily tissue or to withstand heavy loads.   Typical surgical devices which can be made from the composition include surgical staples and ligating clips.
Patent CA-2144173-A1 (CA)
Title: Bone cutting apparatus and method
Inventor: ROCKWOOD CHARLES A
IPC: A61B17/16
Filed: 1992-09-09
Abstract: An apparatus and method for preparing a bone for receiving a prosthetic implant (74) having a body portion (75) includ-ing a plurality of fins (78, 80, 82) arranged in a predetermined pattern and a stem portion (76). The apparatus comprises a cutter (12) for cutting fin tracks in the bone (70) to guide the plurality of fins (78, 80, 82) on the implant (74) as the implant (74) is in-stalled into the bone (70). The apparatus also includes a rod (14) coupled to the cutter (12) for locating the cutter (12) relative to an intramedullary canal of the bone (70), and a drive rod (18) and head (20) coupled to the cutter (12) for driving the cutter (12) and rod (14) into the bone (70). The rod (14) is preferably removable from the cutter (12) to permit a rod having a different size to be selectively coupled to the cutter (12) depending upon the selected size of the stem (76) of the implant (74). The apparatus also includes a collar (16) slidably coupled to the cutter (12) in a predetermined orientation. The collar (16) is configured to engage the bone (70) to determine a proper rotational position of the cutter (12) relative to the bone (70) about a longitudinal axis of the rod (14).
Patent CA-2145265-A1 (CA)
Title: Telescoping upright
Inventor: DOYLE JAMES E
IPC: A47B9/00
Filed: 1995-03-22
Abstract: An extruded aluminum upright support of a first, vertically elongated, extruded, integral, outer upright member and a second, vertically elongated, extruded, inner upright member telescopically arranged with each other, the outer member having a pair of spaced outer bearing channels, the inner member having a second pair of bearing channels; a first pair of bearings positioned in the first pair of bearing channels and extending laterally into the second pair of bearing channels; and a second pair of bearings positioned in the second pair of bearing channels and extending laterally into the first pair of bearing channels. The bearings are laterally expandable and contractible relative to bearing channels into which they extend. The bearings have two faces in the shape of a laterally oriented V at an obtuse angle to each other cooperable with wedge-shaped spacers each having a sloped face engaging one of said two faces, one of the spacers being axially fixed, and a threaded actuator engaging the other of the spacers whereby the threaded actuator can be employed to linearly move the spacers toward or away from each other to laterally expand or contract the bearings.
Patent CA-2145911-A1 (CA)
Title: Snap-On Rod Guide
Inventor: SABLE DON E
IPC: E21B17/10
Filed: 1995-03-30
Abstract: A field-installable rod guide firmly grasps the sucker rod to which it is attached and reduces fluid friction to axial movement of the rod guide. The rod guide includes one or more channels for fluid to flow by the guide through straight or helical vanes. An axial access channel which permits application of the rod guide onto a sucker rod has a wide, tapered mouth to minimize the length of time during which the guide is stretched during installation. Recognizing that some stretch is inevitable in the guide at the point opposite the axial access channel, more rod guide material is placed at this point of greater stretch. In a preferred embodiment of the present invention, the rod guide stock from which the rod guide is machined is extruded to form the desired vanes as well as a non-circular "rod hole." This way, a "dual-radius" hole is enabled. The dual-radius hole narrows the gripping radius of the guide to solidly grasp the rod and eliminate slipping of the guide on the rod.
Patent CA-2152487-A1 (CA)
Inventor: STANKO RONALD T
IPC: A61K31/22
Filed: 1993-10-23
Abstract: A method for treating a medical patient prior to or during heart trauma, e.g., myocardial infarction, angina and ischemia. An effective dosage of pyruvate is introduced into the patient to increase the patient's cardiac output and stroke volume, to decrease the patient's heart rate and to reduce the oxygen demand of the patient's heart. The dosage may be introduced intravenously into the patient or orally as a component of the patient's diet. The oral feeding method is especially useful for surgical patients prior to surgical procedures which are likely to encourage cardiac trauma and useful for patients exhibiting symptoms of chronic congestive heart failure.
Patent CA-2153686-A1 (CA)
Title: Angiogenesis inhibitor and novel compound
Inventor: KUWANO MICHIHIKO
IPC: A61K31/085
Filed: 1993-12-27
Abstract: An angiogenesis inhibitor comprising, as an active agent, Compound (I) represented by the formula below:       (I) where R1 is a lower alkyl group, an alkoxycarbonyl group or a carboxyl group; and R2, R3 and R4 may be the same or different and represent a hydrogen atom, a hydroxyl group, a methoxy group or an acetoxy group.   This compound has a remarkable angiogenesis inhibition activity, and an angiogenesis inhibitor useful for treatment of various diseases are provided.
Patent CA-2154554-A1 (CA)
Title: Transport and storage system
Inventor: URBACH DIETER
IPC: B65D19/00
Filed: 1994-11-23
Abstract: The invention pertains to a transport and storage system (1) whose goods holding device (2) is a palette-shaped construction whose individual decks are linked together with a profile section and whose leading edges (3-6) are open on all sides. To make the transport and storage system (1) suitable, in a simple way, for use in clean room areas especially, it has a support device (7) with a connecting device (8) whose shoulders (19, 20) form a clamping and sealing channel (22) that runs along all the leading edges (3-6) of the goods holding device.
Patent CA-2154728-A1 (CA)
Title: Method and apparatus for filling a tank with a predetermined weight of liquid
Inventor: AMONSON ALAN
IPC: G05D9/12
Filed: 1995-07-26
Abstract: A method for filling a tank with a predetermined weight of liquid is described.  This method is useful wherever floats or other volumetric dependent modes of measurement do not yield the desired information.   Firstly, calculate the pressure differential required to overcome internal tank pressure and force a non-turbulent stream of bubbles from a bottom of a tank when the tank is filled with a known predetermined weight of liquid, thereby setting a standard for comparison purposes. Secondly,  monitor  the  pressure  differential  required  to overcome internal tank pressure and force a non-turbulent stream of bubbles from a bottom of the tank as a flow of liquid is entering the tank.
Patent CA-2157384-A1 (CA)
Title: Vecteurs particulaires synthetiques et procede de preparation
Inventor: GIBILARO JOELLE
IPC: A23L27/00
Filed: 1994-03-01
Abstract: La présente invention a pour objet un vecteur particulaire synthétique, en ce qu'il comporte: un noyau hydrophile non liquide, une couche externe constituée au moins en partie de composés amphiphiles, associée au noyau par des interactions hydrophobes et/ou des liaisons ioniques. Elle a également pour objet un procédé de préparation d'un vecteur particulaire par encapsulation d'un principe actif ionisable, ainsi que les vecteurs pouvant être obtenus par ce procédé. Elle concerne enfin des compositions pharmaceutiques, cosmétologiques ou à usage alimentaire contenant de tels vecteurs.
Patent CA-2160320-A1 (CA)
Title: Rail structure for canopy installation on a truck box
Inventor: ERNST GREGORY R
IPC: B62D33/04
Filed: 1995-10-11
Abstract: A set of rails are in place atop the sidewalls of a truck box.       Slides, one each in place on the sides of a truck canopy, engage the rails and include a flange for inserted engagement with an undercut portion of each rail. A flange free forward segment of each slide facilitates initial slide-to-rail engagement. Loading brackets, temporarily attachable to each rail, facilitate one man loading of the canopy while skids support the canopy rearward end. Teeth on the brackets and the slides prevent canopy slippage during loading. Canopy hold downs on the rails are engaged by a hold down member on each slide.   Tie down hooks are carried in the crosswise slots of each rail and are locked in place by a canopy mounted slide or, alternatively by an insert in place in a rail when the canopy is removed.
Patent CA-2160432-A1 (CA)
Title: Method and apparatus for determining simple convex polygons
Inventor: DANIELSON BRIAN H
IPC: G06T7/60
Filed: 1995-10-12
Abstract: An accelerated video controller operates in conjunction with a video driver to accelerate certain video operations. If the operating environment requests a polygon operation, the driver (or software on the video controller) will determine whether the specified polygon is simple convex. The determination of whether a convex polygon is simple convex is accomplished by tracing between the vertices of the polygon and comparing the changes in direction relative to a predetermine coordinate axis to a threshold number. If the polygon is simple convex, certain operations can be performed using simpler code or hardware accelerated features. For a polygon fill, if the polygon is simple convex, the edges of the polygon are inspected to determine whether the polygon can be decomposed into a rectangle and a smaller polygon. If so, the video controllers bit engine will be used to perform the fill of the rectangle at high speed, thusreducing the time of the operation.