baber/WOPTO huggingface dataset:
Patent NO-176196-C (NO)
Inventor: MULLER WALTER
IPC: G01N30/95
Filed: 1990-02-22
Abstract: The invention relates to a device and process for rendering stains of substances on layer chromatograms visible, the chromatograph having at least one single-layer sheet which contains one or more reagents for rendering stains of substances visible.
Patent NO-179146-C (NO)
Inventor: MANCINI GIUSEPPE
IPC: C08L53/02
Filed: 1991-05-13
Abstract: A method for preparing stable bitumen-polymer mixtures is described, consisting of maintaining the mixture components in mutual contact at a temperature from about 200 DEG C to about 250 DEG C for a time of between 15 hours and 45 minutes. After such treatment the bitumen-polymer mixture is stabilized and, under fluidity conditions such as those which occur for example during hot storage, no separation of the system into two phases is observed even after long time periods.
Patent CA-2000207-C (CA)
Title: Gas seal
Inventor: JENKINS PETER DAVID
IPC: B65H51/16
Filed: 1989-10-05
Granted: 2001-03-13
Abstract: A seal for a duct (7) containing a transmission line package (P) comprises a flexible member (2) disposed in a connector 1. The flexible member (2) has a waisted portion that collapses inwardly onto the transmission line package (P) to form a gas seal up to pressures of about 2 bar, above which the waisted portion yields to permit removal or insertion of the transmission line package, for example by the fibre blowing technique. Vents (8) are provided in the connector (1) so that an increase in ambient pressure externally of the connector increases the resistance of the waisted portion to opening. The arrangement may be used to maintain water tightness or pressure differentials over a bulkhead.
Patent CA-2002031-C (CA)
Title: Wheelchair back system
Inventor: JAY ERIC C
IPC: A61G5/12
Filed: 1989-11-01
Granted: 1993-03-23
Abstract: ABSTRACT           The present invention relates to a seat back system for wheelchairs which provides for height adjustability of the back, adjustment of the tilt of the back, a lumbar support which may be positioned to fit the specific height required by the wheelchair user independent of the height of the back, and provides for con-toured, adjustable lateral support.  The back system may be read-ily attached to or detached from a wheelchair, in order to fold up the wheelchair for transportation or storage.  The wheelchair back system may be used on new wheelchairs and may be retrofit-ted on existing wheelchairs to replace existing back structures.
Patent CA-2003578-C (CA)
Title: Chlamydia assay
Inventor: DONAHUE CATHERINE S
IPC: A61K39/395
Filed: 1989-11-22
Granted: 1996-03-05
Abstract: A  method  for  assaying  of  Chlamydia  includes adhering Chlamydia antigen to amidine modified latex particles,   binding   of   adhered   antigen   to   an anti-Chlamydia  antibody  conjugated  to  an  enzyme, separating the particles from the liquid phase of the assay and detecting bound enzyme by color development when  the  separated particles  are  contacted with  a substrate for the enzyme.   The  invention  includes  a kit of materials for preforming an assay in accordance with the method of the invention.
Patent CA-2003739-C (CA)
Title: Thermoplastic graft copolymers and their use as compatibilizers
Inventor: CHUNG TZE-CHIANG
IPC: C08F255/00
Filed: 1989-11-23
Granted: 1999-02-23
Abstract: Graft  copolymers  are  disclosed having  the formula:                   (see fig. I) wherein R and R' are hydrogen, alkyl, and the primary and secondary alkyl halides, a ranges from about 14 to 70,000, b ranges from 0 to about 70,000, c ranges from 0 to about 70,000, d ranges from about 1 to 70,000, X comprises a halogen, and Nu is a nucleophilic residue provided by a thermoplastic polymeric nucleophile having a molecular weight of at least about 1,000 and being sufficiently nucleophilic electrons to benzyl halides. Methods for compatibilizing polymer blends utilizing such graft copolymers are also disclosed.
Patent CA-2004002-C (CA)
Inventor: CORLETT ESMOND NIGEL
IPC: A47C3/28
Filed: 1989-11-28
Granted: 1999-06-22
Abstract: A chair is provided with a seat which can support a user in both a sitting and semi-standing position,  the seat  being  so  shaped  to  provide  a  substantially horizontal surface for the user irrespective of the angle at which the seat is set.
Patent CA-2004247-C (CA)
Title: Plastic encapsulated nut and washer assembly
Inventor: MACLEAN BARRY L
IPC: F16B33/00
Filed: 1989-11-30
Granted: 1994-07-26
Abstract: PLASTIC ENCAPSULATED NUT AND WASHER ASSEMBLY          Abstract of the Disclosure A plastic encapsulated nut and washer assem-bly includes a plastic retainer or body for holding a hex nut and washer in axially aligned abutting relation ready for assembly with an external threaded member. A portion of the plastic retainer provides an annular seal around the washer when the nut is tightened on a threaded member and an extension bore is formed in the plastic material for providing a lock-nut func-tion when the threaded member is extended into the extension bore from the threaded bore of the hex nut.
Patent CA-2010036-C (CA)
Title: Stabilized bleach containing liquid detergent compositions
Inventor: BOUTIQUE JEAN-POL
IPC: D06L1/12
Filed: 1990-02-14
Granted: 1995-07-18
Abstract: Aqueous, bleach containing, liquid detergent compositions, which are stabilized against bleach decomposition due to contamination by metal traces are disclosed.    The stabilizing effect is obtained by using hydroxy ethylidene-1,1 diphosphonic acid in the composition.
Patent CA-2019454-C (CA)
Title: Polymeric composition for the absorption of proteinaceous fluids
Inventor: YARBROUGH SANDRA M
IPC: C08L101/00
Filed: 1990-06-20
Granted: 2002-04-30
Abstract: A polymeric composition specifically adapted to absorb blood and other proteinaceous fluids and having repeating units, said polymeric composition comprising pendant neutralized carboxyl groups (salts) and pendant carboxyl groups. The polymeric composition is characterized in that the ratio of pendant neutralized carboxyl groups to pendant carboxyl groups is within the range of from about 1:9 to about 9:11, at least about 20 mole percent of the repeating units comprise a pendant neutralized carboxyl group or a pendant carboxyl group, and at least about 50 percent of the pendant neutralized carboxyl groups have been neutralized with a potassium or lithium base.
Patent CA-2020386-C (CA)
Title: Die-cuttable and dispensable deformable labels
Inventor: DOLLINGER SUSAN E
IPC: B32B27/08
Filed: 1990-07-04
Granted: 2002-09-24
Abstract: A film facestock useful for making labels for use on deformable substrates, which labels are die-cuttable and dispensable, the film facestock including a layer of a polymer blend which includes an ethylenic material, a styrenic material, and a compatibilizing material.
Patent CA-2020558-C (CA)
Title: Lubricant composition
Inventor: EVANS SAMUEL
IPC: C10M141/08
Filed: 1990-07-05
Granted: 2001-11-06
Abstract: Lubricants can be stabilized against oxidation by the addition of a) a sterically hindered amine and b) a phenol of formula I   (see formula I) wherein A, B and X are as defined in claim 1. It is preferred to use phenols of formula I which contain a thioether group.
Patent CA-2021633-C (CA)
Title: Torque calibrator
Inventor: BURGESS JAMES S
IPC: G01C25/00
Filed: 1990-07-05
Granted: 1998-03-24
Abstract: A torque calibrator which has a pair of torque beams with hydraulic cylinders for exerting forces on opposite ends of the torque beams and with load cells mounted at opposite ends of the beams for measuring the forces applied to the beams with the beams being designed for a torque cell to be mounted between the beams for having torque applied to the torque cell to calibrate the torque cell.
Patent CA-2026253-C (CA)
Inventor: GRAMLICH WAYNE C
IPC: G06F17/30
Filed: 1990-09-26
Granted: 1997-04-01
Abstract: In the method and apparatus of the present invention a file to be added to the database is given a unique name that is dependent upon the contents of the file such that, when the contents of the source file changes, the name of the database component file to be added to the database also changes. Conversely, if two files of the same name have the same information contained therein, the same file name will be generated and the duplication of information in the database is prevented by providing a simple test that checks for the existence of the name of the database file before the generation and addition of the new file to the database. If the file name exists in the database, the information is already contained in the database and the file is not generated and added to the database information. Preferably the name of the file is generated by computing a hash value from the contents of the file and concatenating the hash value to thename of the source file. Because the source file name is used in conjunction with the hash value to construct the database file name, the hash value does not haveto be unique for all files but only for those source files having the same name.
Patent CA-2027783-C (CA)
Title: 3-aryloxazolidinone derivatives, process for their preparation and their use in therapy
Inventor: JARREAU FRANCOIS-XAVIER
IPC: A61P25/26
Filed: 1990-10-16
Granted: 1996-04-30
Abstract: The derivatives of the formula :                          (I) wherein : -   R1 is H or C1-C4 alkyl ; -   X is either an oxygen atom, in which case R2 = H or halogen, or a methylene group or a -CH=CH- group, in which case R2 = H ; -   n is 1 or 2 when X is an oxygen atom or a methylene group and 0 or 1 when X is a -CH=CH- group ; -   each of R3 and R4 is independently H, C1-C4 alkyl, C4-C7 cycloalkyl, phenyl or benzyl ; -   R5 is H or C1-C4 alkyl ; -   R6 is C1-C4 alkyl, CHF2, CF3, CF3CF2, C4-C7 cycloalkyl, phenyl or benzyl ; -   R5 and R6 may further form together a -(CH2)3- or -(CH2)5- chain ; -   R5 and R6 may further form together a -(CH2)4- or -(CH2)5- chain ; and -   R7 is H, C1-C4 alkyl, C2-C5 acyl or benzyl, useful as anxiolytics and anti-depressants.
Patent CA-2032893-C (CA)
Inventor: OKADA TETSUYA
IPC: H02J7/00
Filed: 1990-12-20
Granted: 2000-10-24
Abstract: A battery charger charges a discharged battery and can be connected directly to an appliance where it serves as an AC adapter. The output of the battery charger automatically reduces to a trickle maintenance charge as the battery approaches a full charge condition. A      Zener diode, used for overcurrent protection automatically turns off the charging function in the event of an overcurrent condition. The circuit automatically resets when the overcurrent condition is removed. A hinged section, when opened out, provides mounting for a battery to be charged. When the hinged section is closed, switches are operated, and electrical connections are made to permit affixing the charger, as an AC adapter, to the normal battery retainer of the appliance.
Patent CA-2034860-C (CA)
Title: Decompression device for suction pumps
Inventor: MONTANER PERE PARES
IPC: B05B11/00
Filed: 1991-01-24
Granted: 1996-01-30
Abstract: A decompression device  for  suction pumps having a pumping chamber (2) and a plunger (8) formed with a resilient lower lip (10), which in the end-of-stroke position reaches a lower limit level (12) and which comprises at least one protuberance (30) in the surface of the pumping chamber (2) extending on both sides of the lower limit level (12) and determining a lower edge (32) and an upper edge (34), between which at least one continuous slot (36) extends.
Patent CA-2036199-C (CA)
Inventor: NOHARA AKIRA
IPC: G10L21/0208
Filed: 1991-02-12
Granted: 1997-09-30
Abstract: A voice signal which contains noise is cepstrum-analyzed to determine a peak and a mean-value thereof.  When a peak which surpasses a given threshold is detected in the signal, the signal is assumed to be a vowel, and when the mean-value of the signal is higher than a specified threshold, the signal is assumed to be a consonant, thereby permitting the voice portion of the signal to be accurately isolated.  Further, utilizing that result, noise is accurately canceled from the signal by adjusting a cancel coefficient so that the voice portions of the signal are hardly affected by the noise canceling while pure noise portions of the signal are substantially completely canceled therefrom.
Patent CA-2041077-C (CA)
Title: Shingle lifting tool
Inventor: WHITESELL DAVID EDWARD
IPC: E04D15/00
Filed: 1991-04-24
Granted: 1995-08-01
Abstract: A tool is provided for lifting and rolling for removal ordinary roofing shingles which have been nailed on roofs.  The tool comprises an articulated, elongated handle having upper and lower sections joined at an intermediate pivot, the lower section angled forwardly,  out of alignment with respect to the upper section.  The pivot permits relative pivotal movement of the lower section with respect to the upper section to vary the angle it makes therewith.  Means are provided to secure the lower section at an angle within a range of angles with respect to the upper section.   A flat blade is secured to the free end of the lower section for slipping beneath shingles,  for lifting and rolling thereof.  The blade comprises a plurality of spaced tines extending in a direction parallel to the longitudinal axis of the lower section.  The tool according to the present invention provides a construction of shingle lifting tool which will facilitate the lifting and rolling of ordinary roofing shingles.
Patent CA-2041199-C (CA)
Title: Device with pretensioned jack for monitoring the operating pressure between two rotary cylinders in a machine used for processing matter such as webs, ink films or similar
Inventor: BOREL EDOUARD
IPC: B41F13/40
Filed: 1991-04-25
Granted: 1998-08-18
Abstract: The invention concerns a device for monitoring the operating pressure  between  the  two  rotary  cylinders  (PP,  PB)  in  a machine used for processing matter such as webs, ink films or similar,  for  instance  on  an  offset  printing  machine.  The device includes a pneumatic jack (2), on which the outlet rod (20)  of  the piston  (21)  acting  on the positioning of each bearing (12) supporting the end of the central shaft (14) of a  cylinder  (PP).  When  a  chamber  (22)  of  the  jack  (2)  is subjected  to pressure  (b1),  the  rod  (20)  acts  against the shift of the bearing (12), which would entail an increase of the  distance  between  the two cylinders  (PP,  PB)o A fixed, though, adjustable,  arresting  piece  (4)  acts  against  the shift of the bearing (12) which would cause the reducation of the distance between the cylinders (PP and PB).
Patent CA-2047619-C (CA)
Title: Bus mounted capacitor expulsion-type fuses
Inventor: VEVERKA EDWARD F
IPC: H01H85/38
Filed: 1991-07-23
Granted: 1996-08-27
Abstract: An electrical fault protective device for providing power  interruption  in  electrical  circuits  rated  at 10,000  amperes  and  above.   The  device  comprises  a single- or double-vented expulsion-type fuse, connected at one vented end to a hollow bus and at the other end to a conductive expansion chamber for a double-vent fuse or an  electrical  contact  for  a  single-vent  fuse.   A spring  located in the hollow bus  is attached to the fusible link for pulling the fusible link from the fuse tube to rapidly extinguish the arc when the fuse blows. The fuse tube is also retractable into the hollow bus when the fuse blows to provide a visual indication of fuse operation and to relieve the dielectric stress on the fuse tube.
Patent CA-2049786-C (CA)
Title: Digital signal encoder
Inventor: AKAGIRI KENZO
IPC: G10L19/035
Filed: 1991-08-23
Granted: 2003-04-08
Abstract: An apparatus for encoding an input digital signal divides the input digital signal to produce frequency components of increasing bandwidth as the frequency increases, performs blocking on each of the frequency components to produce blocks of decreasing time length as the frequency increases, performs a fast Fourier transformation on each block and quantizes each block using a quantization characteristic set in accordance with a comparison of the energy of each frequency component in each block with a masking spectrum. The masking spectrum includes both a masking effect on the frequency base of the input signal and masking effect on the time base of the input signal and may further include effects of the minimum audible curve of the human hearing sense characteristic. Utilization of both the temporal and frequency masking effects permits reduction in the bit rate of the encoded signal using real time processing and without deterioration in sound quality.
Patent CA-2051608-C (CA)
Title: Digital filter and multi-channel decimator
Inventor: SEVENHANS JOANNES MATHILDA JOS
IPC: H03H17/06
Filed: 1991-09-17
Granted: 1996-01-02
Abstract: A multi-sample multi-channel decimator producing a FIR filtering response from 128 digital filter coefficients for 4 independent channels with a decimation ratio of 32, i.e. from 1MHz 1-bit inputs to 32 kHz multibit outputs, splits cyclically the coefficient values in 16 groups of 8, according to the coefficient positions, into 4 ROMs (0, 1, 2, 3).  The ROMs are coupled to the 4 multipliers (MULT 0, 1, 2, 3), wherein the coefficient value is multiplied by that of the input bit, through a multiplexer (MUXI) able to cycle through 4 distinct conditions.  After the 4 adder accumulators (ACC 0, 1, 2, 3) coupled to the outputs of their respective channel multipliers have, in parallel partially computed output words, each using one sixteenth of the coefficients, the multiplexer rotates these, thereby enabling complete computation in 4 cycles, 4 registers (REG 00, 01, 02. 03) being associated to each adder so as to compute 4 staggered output words simultaneously for each channel.  A preferred filtering response can reduce the size of the ROMs.
Patent CA-2057291-C (CA)
Title: A stable pharmaceutical composition of human calcitonin
Inventor: ARVINTE TUDOR
IPC: A61K47/12
Filed: 1991-12-09
Granted: 2003-09-09
Abstract: A stable aqueous solution of human calcitonin (hCT) which remains free of hCT fibrils for at least 24 hours at 25°C which comprises water, hCT and a cellulose derivative and/or an acid, the type of acid and the amount of acid being so chosen as to achieve said stability in the absence of a salt or a buffer.
Patent CA-2057924-C (CA)
Title: Appareil de dilatation a l'aide d'une sonde a ballonnet chauffe
Inventor: KASPRZYK DANIEL JOHN
IPC: A61M29/02
Filed: 1990-05-15
Granted: 2000-12-12
Abstract: Un cathéter à ballon de dilatation (10) ayant des éléments chauffants (22) augmente la température de la surface effective du ballon pendant son gonflage lors d'une angioplastie. Dans un mode de réalisation, le ballon (12) est pourvu d'une fine couche électroconductrice (20) en relation de transfert thermique, placé de préférence sur la surface intérieure du ballon (12). On utilise de préférence un courant électrique (33) à haute fréquence ainsi qu'un câble coaxial (24) pour amener l'alimentation électrique à la couche conductrice (22) en vue de chauffer le ballon (12). Dans un autre mode de réalisation, le ballon lui-même (43) est constitué d'un matériau électroconducteur. Une ouverture de perfusion (42) peut être ménagée au travers du ballon avec un ou plusieurs orifices d'admission proximaux (46) et un ou plusieurs orifices de décharge distaux (47) en communication fluide avec l'ouverture (42) pour permettre au sang de passer au travers du ballon (43) lorsqu'il est gonflé pendant l'angioplastie. Ceci facilite l'écoulement de sang oxygéné distalement par rapport au cathéter lorsque le ballon est gonflé permettant ainsi d'effectuer des gonflages prolongés du ballon, par exemple jusqu'à 30 minutes ou davantage. L'ensemble à cathéter (10) peut également être utilisé pour traiter l'infarctus du myocarde en dilatant des occlusions thrombotiques.
Patent CA-2059441-C (CA)
Title: Visual readout display unit and support for within a telephone base
Inventor: MCLEAN KENNETH W
IPC: H04M1/02
Filed: 1992-01-15
Granted: 1997-02-04
Abstract: A mount for connecting together two articles, the mount comprising a wall and two sets of latches projecting from the wall.  The mount is particularly useful for con-necting a visual readout display unit to a aprinted circuit board in a telephone where minimum height requirements are paramount.  The latches are provided in two sets, one set for registration with each article and a latch of each set is disposed, along the wall, between latches of the other set.
Patent CA-2060178-C (CA)
Title: Fluid discharge apparatus
Inventor: AUER HARRY T
IPC: B05B1/34
Filed: 1991-06-04
Granted: 1999-05-04
Abstract: A fluid discharge apparatus for imparting a stream configuration to a current of fluid. The apparatus will allow a fluid dispenser, such as pump bottles or spray bottles that dispense lotions and cleaners, to provide the user with the ability to choose a spray configuration. The fluid discharge apparatus includes a nozzle (1) containing a passageway (2) having at least a receiving portion (3) with a substantially rectilinear cross-section and an issuing portion (4) with a substantially curvilinear cross-section, such that a fluid current passing through the passageway emerges therefrom in a stream configuration. The nozzle (1) may be pivotably connected to a second nozzle (7). The second nozzle (7) is adapted for incorporation into a sprayer-type fluid dispenser, and contains a second passageway (8). Pivoting of the first nozzle (1) towards, and its consequent attachment to, the second nozzle (7), brings the first and second passageways (2, 8) into sealed communication. This permits the fluid current generated by the sprayer apparatus to be dispensed as either a spray, when the first nozzle (1) is not attached to the second nozzle (7), or as a stream, when the first nozzle (1) is so attached.
Patent CA-2061922-C (CA)
Title: Hose coupling
Inventor: BAHNER FRANK
IPC: F16L37/12
Filed: 1992-02-26
Granted: 1996-04-23
Abstract: A hose coupling wherein a sleeve is made of one piece with axially parallel elastic arms engageable with an external rib of a pipe which is inserted into one end portion of the sleeve.  The other end portion of the sleeve is sealingly connected with and surrounds an end of a hose, and the sleeve is surrounded by a turnable or axially movable locking ring having prongs which are caused to bear against the adjacent arms so that the arms are urged against the rib.  The sleeve has one or more elastic tongues which can snap behind the adjacent portion or portions of the locking ring to hold the ring in the operative position and to indicate that the ring is maintained in the operative position. The arms have internal grooves for reception of adjacent portions of the rib.  The prongs are provided with internal projections which must ride over ramps and hurdles on the respective arms during translatory or angular movement of the locking ring to its operative position, and the arms are further provided with stops which arrest the respective projections when the ring reaches its operative position.
Patent CA-2063217-C (CA)
Title: Exchange for an isdn capable of controlling an incoming call by kinds of communication
Inventor: HOKARI MAKOTO
IPC: H04Q11/04
Filed: 1992-03-17
Granted: 1996-01-16
Abstract: For controlling an incoming call transmitted from an integrated services digital network towards a terminal unit, an exchange comprises a memory for memorizing address data representative of slave addresses which are assigned to the incoming call.  In accordance with the incoming call and the address data, a local signal producing circuit produces a local signal for use in making a control portion of the exchange control the incoming call.  When the incoming call includes a kind datum representative of a kind of the terminal unit, such as speech, facsimile, and/or data processing units, the control portion controls the incoming call in accordance with the kind datum and the address data.  Likewise, the incoming call may include a channel datum and a number datum.