baber/WOPTO huggingface dataset:
Patent CA-2012959-A1 (CA)
Title: Rammed earth construction
Inventor: HAVEAUX RAYMOND
IPC: E04G11/00
Filed: 1990-03-23
Abstract: Abstract of the Disclosure A construction apparatus for erecting rammed earth structures includes a series of forms each having a panel with a smooth inner face and connection means for maintaining the panels in a predetermined relationship for defining a cavity to receive an earth mixture.  Curved panels having smoothly curved inner faces are provided with a sufficient radius of curvature to permit removal of the forms without applying damaging tensile loads to the structural earth material.  The apparatus includes internal and external corner forms and buttress forms.  Rebate formers project into the cavity to form slightly weakened structural sections to prevent random cracking.  Key formers span the thickness of the cavity to define bulkheads within the rammed earth walls.
Patent CA-2013976-A1 (CA)
Title: Hard-surface cleaning compositions
Inventor: CORN IAN
IPC: C07C211/02
Filed: 1990-04-05
Abstract: Abstract Hard surface cleaning compositions are disclosed which comprise anionic surfactants ammonium salts, monoethanolamine or diethanolamine or triethanolamine or mixtures thereof and a solvent system; the compositions herein have an alkaline pH.
Patent CA-2014700-A1 (CA)
Inventor: VINCI JAMES N
IPC: C10M159/20
Filed: 1990-04-17
Abstract: A method for reducing friction between railroad wheel and railway track is disclosed comprising applying to the railway track a composition comprising- an overbased non-Newtonian colloidal disperse system comprising: (1) solid metal-containing colloidal particles pre-dispersed in (2) a disperse medium of at least one inert organic liquid and (3) at least one member selected from the class consisting of organic compounds which are substantially soluble in the disperse medium, the molecules of said organic compound being characterized by polar substituents and hydrophobic portions.
Patent CA-2015824-A1 (CA)
Title: Pigment preparations
Inventor: TORK LEO
IPC: C09D17/00
Filed: 1990-05-01
Abstract: Pigment preparations Abstract Pigment preparations which comprise A) an in-organic and/or organic pigment, B) a liquid oligourethane and, when appropriate, C) one or more additives customary for pigment preparations, the weight ratio A):B) being 1:0.1-50, as well as the use of these preparations for the  pigmenting of  leather  and  leathercloth dressing agents.     Le A 26 372 -US
Patent CA-2016573-A1 (CA)
Inventor: HIGGINS MICHAEL J
IPC: A61B5/1495
Filed: 1990-05-11
Abstract: A calibration device is provided for in vitro calibration of a light guide.   The calibration device has a surface defining a cavity having an open end and a closed end opposite  the open end.  The opening is sized to receive the end portion of a light guide and a stop is provided near the closed end to prevent the light guide from contacting the inner surface of the closed end and to define an air gap between the end face of the light guide and the inner surface of the closed end.  The inner surface of the closed end  is  flat  and  perpendicular  to  the  longitudinal axis of the light guide.  The light guide directs light from the end face of the light guide across the gap and against the flat surface.   The  calibration  device  is  formed  of  a  suitable material,  such  as  polyethylene,  with  a  plurality  of  light scattering   particles  and  a  plurality  of  light  absorbing particles  having  neutral  density  filter  properties  uniformly distributed  therein.  Preferred  light absorbing particles that have the properties of a neutral density filter are carbon black.
Patent CA-2020087-A1 (CA)
Inventor: HOLCOMB GREGORY W
IPC: H05K13/00
Filed: 1990-06-28
Abstract: RADIAL LEAD COMPONENT FEEDER   HAVING A NARROW FOOTPRINT                   ABSTRACT OF THE DISCLOSURE A  component  lead  cutting  apparatus  for  tape-fed radial lead electrical components is disclosed.  The taped components are driven through the machine by a rotary index wheel, with the cutting station element adjacent the wheel periphery.  Clamping and cutting die elements are placed  at the  cutting  station,  and  are  actuated by a pneumatic cylinder to clamp and cut the lead components.          The apparatus includes adjustment elements readily access-ible from the top of the machine to raise or lower the index wheel  and thereby adjust  for different  lead cut lengths,  and to position the wheel to accommodate dif-ferent tape sprocket opening configurations.  The machine has a compact, narrow footprint, so that the machine is space-efficient.
Patent CA-2022343-A1 (CA)
Title: Radio-immuno assay for hepatitis b virus pres 2 antibodies
Inventor: HURNI WILLIAM M
IPC: G01N33/569
Filed: 1990-07-31
Abstract: TITLE OF THE INVENTION      A RADIO-IMMUNO ASSAY FOR HEPATITIS B VIRUS              PreS2 ANTBIODIES            ABSTRACT OF THE DISCLOSURE         Anti-hepatitis B virus surface protein (anti-HBS) antibody is adsorbed onto the surface of a substratum.  Hepatitis B virus PreS2+S (PreS2+S) protein is then adsorbed onto the same surface through the interaction of the anti-HBS antibody with the "S" portion of the PreS2+S protein.  The coated surface is then incubated concomitantly with the test sample and a radiolabelled antibody specific for the "PreS2" portion of the PreS2+S protein.
Patent CA-2022896-A1 (CA)
Inventor: BOITIAUX JEAN-PAUL
IPC: C10G25/00
Filed: 1990-08-08
Abstract: BREVET D'INVENTION INSTITUT FRANCAIS DU PETROLE Invention de MM Jean-Paul BOITIAUX, Philippe COURTY, Patrick SARRAZIN MASSE DE CAPTATION A BASE DE NICKEL POUR L'ELIMINATION LE L'ARSENIC ET DU PHOSPHORE CONTENUS DANS LES COUPES D'HYDROCARBURES LIQUIDES, SA PREPARATION ET SON UTILISATION. On décrit une masse de captation pour éliminer l'arsenic et/ou le phosphore d'une charge pétrolière et son procédé de préparation. Cette casse comprend : a) de 60 à 97 % d'un support renfermant, en poids, de 1,5 à 60 % d'oxyde d'au moins un métal A choisi dans le groupe formé par Mg, Ca, Sr, Ba, Mn, Fe, Co, Ni, Cu et Zn, dissous dans l'alumine sous forme d'aluminate et de 40 à 98,5 % d'au moins une alumine, b) de 3 à 40 50 d'oxyde de nickel imprégné par échange ou par dépôt sur le support et c) éventuellement de 0 à 1 % d'oxyde de platine et/ou de palladium imprégné sur ce support.
Patent CA-2023672-A1 (CA)
IPC: A61B17/64
Filed: 1990-08-21
Abstract: This dynamic external support for the wrist comprises an articulated hinge (10) arranged between assemblies (40) and (50) for supporting groups of pins (60) and (70) inserted in the bone on either side of the articulation (80) whose axis is identified by means of targeting needles (90). The support assemblies (40) and (50) permit the positioning of the support in the plane of the arrows A and B, while an adjustment device (20) and a device allowing play (30) permit its inclination transversely relative to this plane, without disturbing the positioning previously obtained. <IMAGE>
Patent CA-2023796-A1 (CA)
Title: Process for producing thermal printing heads
Inventor: SAITA YOSHIAKI
IPC: B41J2/335
Filed: 1990-08-22
Abstract: ABSTRACT OF THE DISCLOSURE   A thermal printing head having a ridge-shaped glaze structure.  First and second glass pastes form the ridge-shaped glaze structure.  The second glass paste has a higher softening temperature than that of the first glass paste.  The first glass paste is printed on a substrate in a pattern having a plurality of adjacent parallel slit-shaped openings.  The second glass paste is printed in a pattern of independent bands covering the openings.  After these steps, the first and second glass pastes are melted and hardened simultaneously by heat treatment to form the ridge-shaped glaze structure.  A plurality of isolated individual resistors are formed linearly across the crest of the ridge-shaped glaze structure and then a plurality of isolated individual conductive traces which connect at one end to each of the resistors are formed.  Lastly, the product is divided into a plurality of thermal printing heads having a ridge-shaped glaze structure.
Patent CA-2024943-A1 (CA)
Inventor: GUSTAFSON DONALD E
IPC: C09J7/02
Filed: 1990-09-10
Abstract: Abstract of the Disclosure A frame adapted for use on a photograph including a flexible conformable sheet having length and width dimensions exceeding the length and width dimensions of the photograph by at least 12.7 millimeter (0.5 inch), a generally centrally located viewing opening having a size and shape adapted to afford viewing of a central portion of the photograph with edge portions of the photograph around the central portion extending along the rear surface of the sheet; and a layer of adhesive along the rear surface of the sheet, the adhesive affording firm adhesion and conformance of the sheet to the edge portions of the photograph to hold the photograph against the sheet and adhesion of the sheet around the photograph to a smooth firm surface to thereby support the photograph and frame along the surface, while being removable form the surface and portion of the photograph without damage thereto.  The surface to which the frame and photograph are adhered could be that of a wall, refrigerator, etc., or that of a special greeting card used in combination with the frame.
Patent CA-2026241-A1 (CA)
Title: Papermaking machine in which the paper web is supported in the draw between the press and dryer sections
Inventor: GULYA THOMAS G
IPC: D21F5/04
Filed: 1990-09-26
Abstract: PAPERMAKING MACHINE IN WHICH THE PAPER    WEB IS SUPPORTED IN THE DRAW BETWEEN    THE PRESS AND DRYER SECTIONS              Abstract of the Disclosure A method of papermaking in which a wet paper web is supported on press felt and passed through the nip between cooperating press rolls to extract water from the web.  The felt, supporting the paper web, then travels through a span of distance and is passed around a heated dryer roll in the dryer section with the felt being interposed between the heated roll and the paper web.  The felt is thus heated and insulates the paper web from the high temperature roll. The paper web is separated from the felt and travels around the remaining dryer rolls in the dryer section, while the heated felt is returned to the nip into position to support the web paper web.
Patent CA-2027418-A1 (CA)
Title: Polyol polyester synthesis
Inventor: HOUSTON ROBERT
IPC: C07B63/00
Filed: 1990-10-11
Abstract: Polyol  polyesters  are  purified  by  a  process  comprising bleaching with a specific silica gel and/or treating with oxygen followed by heat treatment and removal  of volatile products by steam deodorization.  Any steam deodorization is accomplished at reduced  temperatures  or  in  admixture  with  triglycerides  to minimize thermal degradation of the polyol polyesters.
Patent CA-2028415-A1 (CA)
Title: Chemically bonded superabrasives grit
Inventor: CHEN SY-HWA
IPC: C09C1/68
Filed: 1990-10-24
Abstract: Superabrasive grits such as diamond or CBN is chemically bonded with a coating such as tungsten which is in turn bonded to a tool body providing superabrasive cutting tools such as saw blades, grinding wheels, drill bits and the like.
Patent CA-2036630-A1 (CA)
Inventor: HAMAGUCHI FUMIKO
IPC: A61K31/40
Filed: 1991-02-19
Abstract: 1-Phenoxycarbonyl-2-pyrrolidinone derivatives of formula (I) or (I') are disclosed.       wherein R is a C1-C6 alkyl group, a C1-C6 alkoxy group, a nitro group or a halogen atom and n is 1 or 2, and R' is the same as R, but including further a hydrogen atom.  The compounds of formula (I') are useful as nootropic agents.
Patent CA-2040013-A1 (CA)
Title: Blowout preventer
Inventor: HEINONEN ROBERT L
IPC: E21B33/08
Filed: 1991-04-08
Abstract: ABSTRACT OF THE DISCLOSURE    A blowout preventer for use on wells and especially adapted to use on a pumping well during a steam flood operation including an upper housing having oppositely disposed rams for extension and  retraction  between  the  sealing  and  non-sealing  with  a longitudinal member through the blowout preventer into a well, such a polished rod of a pump, a lower housing connected with the upper housing,  and a heat responsive seal assembly in the lower housing for sealing with the polished rod during steam flooding, the heat responsive seal  assembly including an elastomer seal plug designed to swell  to form a seal with the polished rod during steam flooding and including means to compress the seal plug after steam flooding to return the plug to an original non-sealing volume and size below the steam flooding temperature.
Patent CA-2040259-A1 (CA)
Inventor: O'KEEFE LAWRENCE J
IPC: E05B65/464
Filed: 1991-04-11
Abstract: ABSTRACT      A lock for an interlock mechanism that prevents the opening of more than one filing cabinet drawer at a time. The interlock mechanism comprises a fixed-length channel having at least one movable block and at least two wedges. When a drawer is opened, one of the wedges is moved, thereby filling the channel and preventing the opening of another drawer.  The locking means selectively prevents the wedges from moving into the channel when all of the drawers are closed, thereby locking all of the drawers in the filing cabinet in a closed position.
Patent CA-2040649-A1 (CA)
Title: Growth hormone releasing factor analogs
Inventor: BROOKE GERALD S
IPC: C07K14/60
Filed: 1991-04-17
Abstract: Abstract The present invention provides novel analogs of growth hormone releasing factor (GRF).  Chemically modified versions of these molecules are also provided as are DNA compounds encoding GRF analogs.  Some of the polypeptide compounds can be obtained in large yields by production of the compounds in E. coli.  The inven-tion also provides pharmaceutical compositions and methods for the inducement of growth hormone release.
Patent CA-2043039-A1 (CA)
Inventor: MORISHITA SUSUMU
IPC: F02C9/20
Filed: 1991-05-22
Abstract: A gas turbine in which a centrifugal compressor which is driven by a high-pressure turbine and a variable inlet guide vane located at the inlet of the centrifugal compressor are provided, but an axial-flow compressor is not provided between the centrifugal compressor and the variable inlet guide vane, and an operating method of a gas turbine in which the output is varied by moving the variable inlet guide vane while keeping the number of rotation at a high level.  It is possible to vary the output in a short period of time and durability of an engine is improve.
Patent CA-2043320-A1 (CA)
Title: High surface area zirconia
Inventor: REINALDA DONALD
IPC: C01G25/02
Filed: 1991-05-27
Abstract: High surface area zirconia, having a surface area after calcination, is obtainable by a process comprising aging zirconium hydroxide in the presence of an acid of an element of Group V or VI of the Periodic Table of Elements and calcining the zirconium material so-obtained. The preferred acid is phosphoric acid, in particular orthophosphoric acid. A high surface area zirconia is provided having a surface area of at least 180m2/g after calcination at a temperature of 300 °C.
Patent CA-2044413-A1 (CA)
Title: Contact assembly
Inventor: MORLION DANNY L C
IPC: H01R12/50
Filed: 1991-06-12
Abstract: ABSTRACT A contact assembly with at least one signal contact and at least one ground contact, in particular for use in a connector or the like, comprises a support of resilient conductive material, an insulating intermediate layer provided on the support and at least one signal conductor supported on the insulating intermediate layer. The support is used as ground conductor and two or more adjacent contact pads are provided for each signal conductor or each group of signal conductors adjacent a first edge of the support. One contact pad is connected with the support and the other contact pad(s) is (are) connected to the respective signal conductors.
Patent CA-2044878-A1 (CA)
Inventor: VIEGAS TACEY X
IPC: C08L5/00
Filed: 1991-06-18
Abstract: Balanced pH, thermally-reversible and irreversible gels are useful vehicles for drug delivery and in the formation of a protective corneal contact lens. Thermally-irreversible gels are ideal materials for use as an ablatable mask for the cornea to control the depth and smoothness of the ablated corneal surface during excimer laser keratectomy.
Patent CA-2045128-A1 (CA)
Inventor: IMAI TETSUYA
IPC: B01D53/86
Filed: 1990-10-30
Abstract: The present invention relates to a catalytic composition effective for removing harmful materials such as NOx, CO, HC, etc. causing photochemical smog, contained in a combustion waste gas exhausted from industrial plants, cars, etc. and has been developed based on finding that the crystalline silicate having the specified composition and crystalline structure and having been subjected to ion-exchange with copper has not only a very high activity as a catalyst of catalytically decomposing N0, but also a high selectivity for the conversion of NO into N2 and exhibits a stable activity even in the presence of oxygen and SOx, and when using this catalyst, NOx, CO and HC are decreased near the theoretical air fuel ratio and in a range of higher than the theoretical air fuel ratio, i.e. in the presence of oxygen.      The catalyst consisting of the crystalline silicate in which copper is incorporated according to the present invention can effectively be used as a catalyst for decomposing NOx in a waste gas into N2 and O2, and in particular, NOx, CO and HC contained in a waste gas can effectively be decreased by the use of the catalyst.
Patent CA-2046221-A1 (CA)
Inventor: VANSLYKE STEVEN A
IPC: H01L33/42
Filed: 1991-07-04
Abstract: An internal junction electroluminescent device is disclosed containing, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone forming a junction with the organic hole injecting and transporting zone, and a cathode comprised of a layer contacting the organic electron injecting and transporting zone containing a combination of magnesium and aluminum.  Aluminum accounts for at least 80 percent of the cathode layer.
Patent CA-2048275-A1 (CA)
Title: Synergistic agents for regulating plant growth
Inventor: SCHOTT EBERHARD P
IPC: A01N33/24
Filed: 1991-08-01
Abstract: O.Z. 0050/41834 Abstract of the Disclosure: Plant growth regulators contain a synergistic mixture of one or more growth-regulating quaternary anunonium salts and an imidazolinyl derivative of the general formula II                                       II   where R1 is alkyl, R2 is alkyl or cycloalkyl, R3 is hydrogen, hydroxyl, alkyl, alkoxy, alkylamino, dialkylamino or unsubstituted or substitutd phenyl, phenoxy or phenylamino, R4 is hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio or haloalkylthio and R5 and R6 independently of one another are each one of the groups stated for R4 or together form an unsubstituted or substituted 1, 3-butadiene-1,4-diyl group, and inert additives.
Patent CA-2048623-A1 (CA)
Title: Video telephone systems
Inventor: HARVEY ROBERT L
IPC: H04N7/52
Filed: 1990-12-26
Abstract: Abstract of the Disclosure Differential image data compression systems and techniques are disclosed for use in video telephone systems for full duplex, real time transmission of audio and video images over nominal 3 kHz residential telephone lines and other narrow bandwidth channels.  Each video telephone device consists of a transmitting portion (12) and a receiving portion (38).  In the transmitting section (12) a reduced grey-scale (luminance) image, preferably consisting of only black-and-white pixels, is compared in an image processing module (20) with a similarly reduced image derived from previous values to determine pixel positions that have changed. Information representative of the changes is then encoded and modulated and (time or frequency) multiplexed with the audio and/or chrominance signals for transmission.  At the receiver (38), the incoming signal is demodulated and demultiplexed to separate the audio and video portions, the image portion is decoded and the luminance value is updated by an image updating unit (50).  Adaptive resolution, pixel averaging and interpolation techniques are also disclosed for picture enhancement.
Patent CA-2052101-A1 (CA)
Inventor: ZULASKI JOHN A
IPC: H02H7/26
Filed: 1991-09-24
Abstract: Method and apparatus (10) are provided responsive to the circuit parameters at one or more locations of an electrical power transmission and/or distribution network (21) for detecting protective device operation (BKR). The detection of the protective device operation is utilized to locate faults (F1) and also to ascertain the status of protective devices. This information is useful in automated power systems for desirable isolation and sectionalizing of faults for optimum restoration of the network. A fault detection unit (10) of the present invention is responsive to sensed circuit parameters and provides at least first (STATUS 2, 128) and second (STATUS 1, 142) outputs indicative of protective device operations that open the circuit. The first output (128) is provided upon the occurrence of an overcurrent (108) followed by the loss of a circuit parameter, such as voltage, for a specified time duration (112). In a preferred arrangement, the timing for a specified time duration is started when the overcurrent ends (112). Thus, rapid detection is achieved since the specified time duration need not include the maximum operating time of the protective device. The second output (142) is provided if the conditions for the first output (128) are satisfied and the loss of the circuit parameter continues for a specified extended time interval (132) corresponding to the sequence of operation of the upstream protective device so as to establish protective device operation FIG. 4). For example, the first output (128) in one illustrative arrangement corresponds to the opening of a recloser while the second output (142) corresponds to the lockout of the recloser. In a preferred arrangement, a third output (110) is provided upon the occurrence of an overcurrent for a specified time duration (108). A fourth output (164 - FIG. 6) is provided upon the occurrence of an overcurrent for a specified time duration (108) and the presence of voltage after (160) the occurrence of the first output (108) for purposes of detecting downstream fuse operation (STATUS DF - FIG. 7) on power systems utilizing fuse-saving arrangements. <IMAGE>
Patent CA-2052371-A1 (CA)
Inventor: BAILEY WARNER
IPC: B66C1/18
Filed: 1991-09-27
Abstract: ABSTRACT OF THE DISCLOSURE A D-ring for connecting the hook of a sling sorter to the webbing made of a metal plate and having a wear pad.  An opening is formed in the plate for receiving the hook and a slot is formed near the base of the plate for receiving the webbing.  A notch is formed in the base of the plate forming a prong on each end of the base.  The prongs protect the webbing from being crushed by the D-ring when the D-ring drops.  The wear pad is placed between the opening and the slot and extends outward from the plate.  The wear pad supports the weight of the D-ring when it is lying flat so that the webbing is not crushed between the D-ring and the ground.
Patent CA-2062423-A1 (CA)
Inventor: KEECH RODERICK G
IPC: B65H45/12
Filed: 1992-03-06
Abstract: An apparatus and method for forming a fold construction in a triple wall corrugated paper board comprises a pair of spaced apart main frame plates having four support plates connected therebetween in a direction which is transverse to a feed direction for the paper board. A pair of shaft carrier plates which have linear bearings thereon, are mounted for sliding movement to the support shafts between the frame plates. Spreader tubes are engaged around the support shafts for maintaining a selected and accurate distance between the carrier plates. Upper and lower shafts are rotatably mounted between the carrier plates and carry knives, scoring members or other fold forming elements for scoring or cutting the paper board to form segments of the fold construction. A table is fixed between the carrier plates that cooperates with a hold down roller which is rotatably mounted between the plates, to hold the paper board down and prevent curling or warping as the fold construction is formed.