baber/WOPTO huggingface dataset:
Patent CA-2049111-A1 (CA)
Inventor: MILLER NORMAN K
IPC: E05F15/00
Filed: 1991-08-13
Abstract: Abstract of the Disclosure A flexible, electrically conductive con-tact for a switch which is actuated upon force being applied thereto includes a first plurality of generally flexible fibers.  One portion of the first plurality of fibers is constructed of an electrically nonconductive material.  Another por-tion of the first plurality of fibers is construc-ted of an electrically conductive material.  The flexible, electrically conductive contact further includes a second plurality of generally flexible fibers.  One portion of the second plurality of fibers is constructed of an electrically nonconduc-tive material.  Another portion of the second plu-rality of fibers is constructed of an electrically conductive material.  The second plurality of fi-bers is interwoven with the first plurality of fibers in the form of a sheet with the electrically conductive first plurality of fibers in engagement with the electrically conductive second plurality of fibers to form a flexible, electrically conduc-tive sheet.
Patent CA-2049307-A1 (CA)
Title: Ridged racquet string
Inventor: CHEN SAM H
IPC: A63B51/02
Filed: 1990-03-30
Abstract: A string (10) for a sports racquet, such as a tennis racquet string, is comprised of a string core (20) having a plurality of external ridges (40) bonded thereon for aiding in imparting spin on a ball and for increasing the cross-over contact area between strings. The ridges are parallel to one another and extend axially with the string. Preferably, the string and ridges can be circumscribed by a maximum diameter circle (90), preferably of 1.70 millimeters. The process for making the ridged string includes passing a string core (20) through a bath (72) of resin (71), such as nylon, for coating and glueing the core and then through a die (74) shaped so as to form the ridges (40).
Patent CA-2049607-A1 (CA)
Title: Polyurethanes containing acryloyl or methacryloyl groups, and a process for their production and their use
Inventor: MEIXNER JURGEN
IPC: C08L75/16
Filed: 1991-08-21
Abstract: The present invention is directed to polyurethanes containing (meth)acryloyl groups and to a method of manufacture thereof. The polyurethanes are produced by reacting a) a polyisocyanate component of which at least 50 NCO-equivalent-% consists of at least one acyclic aliphatic diisocyanate containing 6 to 12 carbon atoms in the aliphatic radical, b) an alcohol component containing (meth)acryloyl groups consisting essentially of a monohydric alcohol containing (meth)acryloyl groups and having a molecular weight of from 116 to 1000, c) at least one .beta.,.gamma.-ethylenically unsaturated ether alcohol containing 5 to 14 carbon atoms, and d) at least one polyhydric alcohol, at an NCO: OH equivalent ratio, based on all the starting components a) to d), of from 0.5:1 to 1:1.
Patent CA-2051545-A1 (CA)
Inventor: MOHRI FUMIHITO
IPC: H01F41/02
Filed: 1991-09-17
Abstract: A sintered or bonded permanent magnet formed from a material consisting mainly of iron, particularly a Nd-Fe-B alloy, and having a high corrosion resistance has a surface coated with a resin obtained by the poly-condensation of tannic acid, phenols and aldehydes.   A bonded magnet is also made from a powder of any such material composed of particles coated with any such resin.
Patent CA-2052657-A1 (CA)
Title: Electrosurgical laparoscopic cauterization electrode
Inventor: FAN PETER
IPC: A61B18/14
Filed: 1991-10-02
Abstract: A laparoscopic cauterization electrode for connection to a source of appropriate electrical power for performing deep surgical operations through an opening in a body such as  deep  thorax,  abdominal  perineal,  deep  rectum,  deep gynecological and similar deep body operations, comprising an electrically conductive electrode shaft of a width sized for insertion through the body opening having a proximal and a distal end, the proximal the of said electrode adapted for electrical connectivity to the  power source and the distal end having teflon-coated operative tip associated therewith, insulation  for  providing  both electrical  and  thermal insulation and abrasion resistance along the electrode shaft between the  proximal and distal ends of the electrode and the electrode shaft being of a sufficient length to extend from the exterior into the interior of a body for performing the deep surgical operations.
Patent CA-2054965-A1 (CA)
Title: Esters and amides of substituted phenyl acetic acids
Inventor: PAMUKCU RIFAT
IPC: C08B3/14
Filed: 1991-11-05
Abstract: ABSTRACT           Esters and amides of substituted phenyl acetic acids are disclosed that are useful in treatment of colonic polyps.
Patent CA-2055579-A1 (CA)
Title: Reflection amplifier microwave mobile station modem
Inventor: SAVARY PIERRE
IPC: G01S13/82
Filed: 1991-11-14
Abstract: The invention concerns the modem comprised in the badge or mobile station, in a microwave system for the exchange of data with a fixed station or beacon. 
<??>According to the invention, the modem (4) comprises at least one transistor (11) which functions as a detector on reception, or as a reflectance amplifier on transmission, depending on the gate bias voltages (Vgs0, Vgs1) which are applied to it, and the drain currents (Ids) which result from this. The transmission/reception switching is carried out by means of transistors (27, 28, 40) which switch the loads, and therefore the currents, on the amplifier transistor (11). Amplitude or phase modulation. 
<??>Application to short range telecommunications. 
<IMAGE>
Patent CA-2061706-A1 (CA)
Title: Pyranylphenyl hydroxyalkylnaphthoic acids as inhibitors of leukotriene biosynthesis
Inventor: YOUNG ROBERT N
IPC: A61P29/00
Filed: 1992-02-24
Abstract: Compounds having the formula I:   (see formula I) are inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating angina, cerebral spasm, glomerular nephritis, hepatitis, endotoxemia, uveitis and allograft rejection and in preventing the formation of atherosclerotic plaques.
Patent CA-2062177-A1 (CA)
Inventor: STEPHENSON EVERETT H JR
IPC: B61D3/08
Filed: 1992-03-02
Abstract: Railcars for transporting timber in either the "tree length" form or the "long log" form are disclosed. The present invention discloses a railroad car comprising a central support member having at least one set of wheels disposed near its ends.  A bulkhead is affixed to each end of the central support member and a plurality of cross members extend from the central support member, to which a plurality of  stanchions  are  affixed.  Thus,  the  cross members and the stanchions preferably form a substantially "U"-shaped log holders in a spaced apart relation selected to restrain both tree  length logs and long logs.  The railroad car of the present invention may also comprise one or more means for restraining a stack of timber, such as a winch and a strap. Most preferably, at least six pairs of stanchions are provided and the distance between a first pair of stanchions and the bulkhead is between about 7.5 and 8.5 feet; the distance between the first stanchions and a second pair of stanchions is between about 12.0 and 13.0 feet; and the spacing between further stanchions repeats the same alternating spacing.
Patent CA-2062263-A1 (CA)
Title: Quinone derivatives
Inventor: OKAMOTO YASUSHI
IPC: C07D213/50
Filed: 1992-03-04
Abstract: ABSTRACT OF THE DISCLOSURE           Quinone   derivatives   exhibiting   excellent pharmacological  activity  are  disclosed.    The  quinone derivatives are represented by the general formula:                 (I) wherein A stands for a group represented by the formula:           (wherein R3, R4 and R5 are the same or different from each other and each stands for a hydrogen atom,  a hydroxyl group,  a lower alkyl group,  a  lower alkoxy group,  an alkoxyalkyl    group,    an    alkoxyalkoxy    group,  a cycloalkylalkoxy  group,  a  thiol  group or  a  thioalkyl group, with the proviso that R3 and R4 are not both a lower alkoxy group) or a group represented by the formula:           (wherein R3, R4 and R5 are the same or different from each other and each stands for a hydrogen atom,  a hydroxyl group,  a lower alkyl group,  a  lower alkoxy group,  an alkoxyalkyl    group,    an    alkoxyalkoxy    group,    a cycloalkylalkoxy group, a thiol group or a thioalkyl group, with the proviso that R3 and R4 are not both a lower alkoxy group; and X and Y are the same or different from each other and each stands for a hydroxyl group or a protected hydroxyl group); R1 stands for a heteroarylalkyl group and B stands for a carboxyl group or a protected carboxyl group, and pharmacologically acceptable salts thereof.
Patent CA-2062266-A1 (CA)
Title: Alkyl aromatic hydrocarbon dehydrogenation catalyst
Inventor: MURAKAMI AKIRA
IPC: B01J23/86
Filed: 1992-03-04
Abstract: In order to increase performances of an iron oxide-potassium oxide system catalyst to be used for an alkyl aromatic hydrocarbon dehydrogenation reaction in the presence of steam, there is provided an alkyl aromatic hydrocarbon dehydrogenation catalyst wherein a little amount of titanium oxide is added by the mixing and kneading method or by the preceding addition to iron oxide in the production of the iron oxide-potassium oxide system catalyst to be used for the alkyl aromatic hydrocarbon dehydrogenation reaction in the presence of steam. The iron oxide-potassium oxide system catalyst is allowed to contain a little amount of titanium oxide, whereby an activity can be remarkably increased, as well as a selectivity in the same conversion ratio can also be improved in the alkyl aromatic hydrocarbon dehydrogenation reaction, and further the obtained catalyst exhibits stable performances with time on stream.
Patent CA-2065454-A1 (CA)
Title: Use of thioredoxin in the treatment of malignantly transformed cells in animals and man
Inventor: ROSEN ANDERS
IPC: C07K16/00
Filed: 1990-09-10
Abstract: The use of thioredoxin in the treatment of B lymphocytic leukemia and certain other malignant diseases. The enzyme can be used either alone or in combination with co-factors such as anti-immunoglobulins, interferons or interleukin 1,2,3, or 4.
Patent CA-2066143-A1 (CA)
Inventor: BERARD RAYMOND A
IPC: F21K2/00
Filed: 1992-04-15
Abstract: ABSTRACT OF THE DISCLOSURE A golf ball includes first, second and third clear coats on its cover, counting outward from the cover. The second clear coat contains an effective amount of an optical brightener. The first and third clear coats contain no more than a nominal amount of optical brightener. In a second embodiment of the invention, small quantities of optical brightener are included in the first and third clear coats. The amounts of optical brightener in the first and third clear coats are less than that which causes degradation of the physical properties of the first and third clear coat. In a further embodiment of the invention, an optical brightener is included in the cover of the golf ball. Brightness enhancement from the optical brightener in the cover augments the effect of the optical brightener in the clear coats. In a still further embodiment of the invention, a paint layer on the cover is coated with first, second and third clear coats. At least two of the paint layer, the first clear coat, the second clear coat and the third clear coat contain an effective amount of an optical brightener, the remainder of the paint layer, the first clear coat, the second clear coat and the third clear coat contain no more than a trace amount of optical brightener.
Patent CA-2075762-A1 (CA)
Title: Load measuring system for refuse trucks
Inventor: BOWMAN ALLAN
IPC: B65F3/02
Filed: 1992-08-11
Abstract: A method for determining a weight of material being emptied from a container is shown. The container is lifted to and lowered from an emptying position in a lift empty and lower cycle by an arm which has at least two sensors mounted on it. The method includes selecting at least one measurement position, calibrating the sensors by recording the respective outputs from each of the sensors for both an empty arm and for an arm lifting and lowering a calibrating weight. The outputs recorded for the calibrating weight can then be subtracted from the outputs recorded for the empty arm. Then, an unknown load can be lifted emptied and lowered with the output of the sensors being similarly recorded at the measurement position. By subtracting the output recorded during the lifting portion of the cycle for the unknown load from the output recorded during the lowering cycle for the unknown load a change in output far each sensor at the measurement position can be obtained. The change in output of the sensors can then be compared to the change in output recorded for the calibration step and a weight value calculated. In another aspect of the present invention an apparatus is disclosed having at least two sensors mounted to a sensing portion of an arm. Output from each sensor i.s independently recorded and used in obtaining calibration values and actual weight values.
Patent CA-2076813-A1 (CA)
Title: End cap applicators for high frequency electrodeless lamps
Inventor: LAPATOVICH WALTER P
IPC: H01R13/646
Filed: 1992-08-25
Abstract: A high frequency applicator for energizing electrode-less lamps is described. The applicators are end cups electrically attached to the ends of phased feed points of a planar transmission line, and facing each other so as to form a gap between the end cups. The end cups each have a concave surface facing the gap which forces an electric field concentration in the vicinity of the end cups and in the gap between the opposing end cups. Such a field configuration is useful for energizing a lamp capsule placed within the gaps formed by the end cups. The end cups can be made of metal or metallized ceramic.
Patent CA-2077248-A1 (CA)
Inventor: EMERY PHILLIP L
IPC: B60R13/01
Filed: 1992-08-31
Abstract: A bed liner has a bottom panel with two upwardly extending side panels and a front panel extending upwardly between the side panels. A front rail extends frontwardly from the front panel and has a lip which extends downwardly. The front rail is adapted to overlie the front rail of a vehicle truck box. The bed liner is thermoformed such that two undercut tabs extend rearwardly from the front rail lip beneath a truck box front rail. The tabs engage within a cavity formed in the front rail and snap in place to hold the liner fixed with respect to the truck box. Portions of the liner front panel are undercut toextend horizontally beneath the liner front rail towards the undercut tabs.
Patent CA-2078095-A1 (CA)
Title: Polyvinyl acetals having improved melt viscosity characteristics, processes for their preparation and their use
Inventor: GUTWEILER MATTHIAS
IPC: C08F8/28
Filed: 1992-09-11
Abstract: Hoe 91/F 314 Abstract of the Disclosure Preparation of soluble polyvinyl acetals having a low degree of crosslinking, which show improved melt viscosity character-istics,  by acetalization of soluble polyvinyl alcohols having a  low degree  of  crosslinking,  which  have  been  obtained  by hydrolysis   or   alcoholysis  of  soluble  copolymers having a low degree  of  crosslinking  of  vinyl  esters  and   monomers having multiple ethylenic unsaturations, for  example,  glyoxal bisacrylamide.    As   against   comparable  non-crosslinked, soluble  polyvinyl  acetals,  polyvinyl  acetals  having  a  low degree of crosslinking according to the present invention show increased intrinsic  viscosities  and  surprisingly   exhibit advantageous    properties    in    thermoplastic  forming,  in particular when extruded in a plastified form. The  polyvinyl acetals   having  a  low  degree  of  crosslinking  furthermore have  improved   mechanical  properties  in  comparison  with non-crosslinked  polyvinyl  acetals  and,   in  the  form  of plastified films,   are  particularly advantageously  employed in the production of composite glass.
Patent CA-2079276-A1 (CA)
Inventor: XU JIE
IPC: G02B6/25
Filed: 1992-09-28
Abstract: Disclosed is a polishing process and a polishing apparatus for polishing an end face of a connector assembly with at least one optical fiber. The process comprising the steps of attaching at least one optical fiber with an optical connector made of different material from that of the optical fiber so that the optical fiber exposes from the end face of the optical connector and polishing the end face of the connector assembly with the optical fiber while pressing the same against a flat surface of a rotating abrasive wheel containing fixed abrasive grains with a constant load.
Patent CA-2079486-A1 (CA)
Title: Chelator compositions comprising alpha- diamine compounds
Inventor: BUSH RODNEY D
IPC: C07D333/22
Filed: 1991-04-09
Abstract: The present invention involves photoprotective compositions which are useful for topical application to prevent damage to skin caused by acute or chronic exposure to ultraviolet light comprising chelating agents having the structure:    <IMAGE>  (I)  wherein each -R1 is independently selected from the group consisting of alkyl, aryl, heteroaryl and heterocycle, or the -R1's are covalently bonded together to form a cyclic alkyl or heterocyclic ring; -R2 and -R3 are -OR4, in which case there is no bond or a polar bond between -R2 and the nitrogen covalently bonded to -R3, each -R4 being independently selected from the group consisting of hydrogen, alkyl and aryl, except that both -R4's are not methyl when both -R1's are furyl; or -R2 is -O- and is covalently bonded to the nitrogen which is covalently bonded to -R3, and -R3 is -O- (there being a + charge on the nitrogen to which it is bonded) or nil; wherein the  alpha -diamine compounds consist essentially of compounds wherein =NR2 and =NR3 are in amphi configuration when both -R2 and -R3 are -OH, and when both -R1's are furyl or the -R1's are covalently bonded together to form a cyclohexanedione structure. Methods for using such compositions to prevent damage to skin caused by acute or chronic exposure to ultraviolet light are also involved.
Patent CA-2079681-A1 (CA)
Title: Method of suppressing torsional vibration in a motor speed control system and apparatus therefor
Inventor: SHIBATA NAOTAKE
IPC: H02P25/098
Filed: 1992-02-05
Abstract: Herein disclosed are a method and an apparatus for suppressing a torsional vibration in an electric motor speed control system including a mechanism for transmitting a drive torque from an electric motor to a load through a drive shaft having a torsional spring system. Generally speaking, the signal of a speed detector (3) of an electric motor is a pulsating signal of high frequency. Even if this speed detecting signal is differentiated, it is impossible to obtain a signal proportional to the changing rate of the motor speed. By computing an average value of the signals of the motor speed detector (3) for every predetermined period, however, the pulsating value of the speed signal can be reduced to compute the changing rate of the motor speed from that signal. In the present invention, an acceleration torque command of the electric motor is given in terms of the output signal of a speed controller (11) to cancel the load torque of the electric motor from disturbing the acceleration torque of the motor, with the torque command compensating signal outputted from a motor acceleration torque controller (25) having a proportional gain and an integrator. As a result, the disturbing torque of the electric motor, which is generated by the load and the torsion of the drive shaft during an acceleration and at an abrupt load fluctuating time, is canceled so that the torsional vibration is suppressed to stabilize the variable speed characteristics.
Patent CA-2080474-A1 (CA)
Title: Inhibitors of dipeptidyl-aminopeptidase type iv
Inventor: BACHOVCHIN WILLIAM W
IPC: C07F5/02
Filed: 1991-04-12
Abstract: Inhibitors of Dipeptidyl-Aminopeptidase Type IV having the following general formula: X-Pro-Y-boroPro, where X and Y are chosen from any amino acid (including proline).
Patent CA-2081617-A1 (CA)
Inventor: GUNDERSON RICK L
IPC: F25D23/02
Filed: 1992-10-28
Abstract: DOOR HINGE ASSEMBLY               ABSTRACT OF THE DISCLOSURE            A mullion mounted door hinge assembly for pivotally  guiding  upper  and  lower  doors  of  a refrigerator.  The hinge assembly includes a bracket which slidably accepts a generally cylindrical hinge pin.   The hinge pin has a larger diameter center section and a pair of relatively smaller diameter end sections.  Each of the end sections of the hinge pin extend into an accommodating opening in the upper or lower doors.   The upper door is supported on an upwardly directed surface of the center section.  A downwardly directed surface of the center section is supported by the lower door.  A substantial portion of the weight of the upper door is transferred to the lower door and supported by the lower hinge means. A second preferred embodiment provides a stop means which engages a stop surface at a desired angular opening of the upper door of a refrigerator.   The stop means includes a resilient terminal portion which  deforms  when the  force  thereon  exceeds  a predetermined threshold level to allow the upper door to open beyond the desired angular opening.   The predetermined threshold level is determined by the amount of force which the hinge can sustain.
Patent CA-2082265-A1 (CA)
Title: Method for radiolabeling monovalent antibody fragments
Inventor: CHANG CHIEN-HSING
IPC: A61K38/00
Filed: 1991-03-05
Abstract: A method for radiolabeling a monovalent Fab or Fab' antibody fragment which comprises the steps of cleaving a divalent F(ab)2 or F(ab')2 antibody fragment using sulfite or meta-bisulfite ions to produce a monovalent fragment having a free sulf-hydryl group, and contacting the monovalent fragment with a cation of a metallic radionuclide which binds to sulfhydryl groups, without removing excess sulfite or meta-bisulfite.
Patent CA-2083920-A1 (CA)
Inventor: SICOTTE JEAN
IPC: E04D13/08
Filed: 1992-11-26
Abstract: A new and useful device for connecting an eavestrough downspout having a first cross-section, to a drainage extension having a second cross-section, wherein each of the first cross-section and the second cross-section may be any cross-section chosen from the group consisting of round, square, square with rounded corners, rectangular and rectangular with rounded corners. The device comprises a first portion of pipe having an entrance means of a size sufficient for receiving an end of the downspout irrespectice of the first cross-section and a second portion of pipe having an exit means of a size sufficient for insertion into an end of the drainage extension irrespective of the second cross-section. The first portion is connected to the second portion remote from the entrance means and the exit means and the device further comprises fastening means to fasten the first portion to the downspout and the second portion to the drainage extension and arranged so that in use, water flows from the downspout to the extension through the device without leaking.