baber/WOPTO huggingface dataset:
Patent CA-1290269-C (CA)
Title: Immobilization of nonanchorage-dependent cells
Inventor: BYERS MICHAEL J
IPC: C12N11/08
Filed: 1987-04-14
Granted: 1991-10-08
Abstract: Immobilization of Nonanchorage-Dependent  Cells Abstract of the Disclosure Nonanchorage-dependent cells are immobilized for cell culturing or the production of cell products, by contracting an aqueous suspension of the cells with a floc formed by the combination of positively and negatively charged ion exchange resins having particle sizes ranging from about 0.01 to about 1.5 microns.  The flocs may be formed either prior to contract with the cells or may be formed in situ in the cell suspension upon separate addition of the resins, preferably by first adding the positively charged resin followed by the negatively charged resin,  The resin floc operates as a microcarrier for the cells.
Patent CA-1295495-C (CA)
Title: Mounting member
Inventor: ISHIDA TAKESHI
IPC: F16B35/04
Filed: 1987-04-15
Granted: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE:           A mounting member is improved in durability, allows an article to be mounted at a desired position of a structure  and  eliminates  the  necessity  of  a  special mechanism for preventing rotational movement of a fastening member.  The mounting member has a sloped portion formed adjacent each of a pair of transverse corner portions defined between flanges and webs thereof for preventing turning movement of the head of a  rotational  member disposed within a groove defined by means of the webs and the flanges.  If the head of a fastening member is inserted into the groove through means of an opening defined between the flanges and then the fastening member is rotated through means of an angle of approximately 90 degrees about its axis within the groove,  the head of the fastening member is interposed between the fastened portions and prevented from rotation about its axis.
Patent CA-1283539-C (CA)
Title: Polyester subbing layer for slipping layer of dye-donor element used in thermal dye transfer
Inventor: HARRISON DANIEL J
IPC: B41M5/382
Filed: 1987-09-23
Granted: 1991-04-30
Abstract: POLYESTER SUBBING LAYER FOR SLIPPING LAYER OF DYE DONOR ELEMENT USED IN THERMAL DYE TRANSFER                     Abstract A dye-donor element for thermal dye transfer comprising a poly(ethylene terephthalate) support having on one side thereof a dye layer and on the other side a subbing layer and a slipping layer, the subbing layer comprising a random, linear copolyester derived from at least one aromatic dibasic acid and at least one aliphatic diol.
Patent CA-1276476-C (CA)
Title: Hot gas defrost system for refrigeration systems and apparatus therefor
Inventor: GREGORY CHARLES
IPC: F25D21/00
Filed: 1987-10-22
Granted: 1990-11-20
Abstract: ABSTRACT        The invention provides a full flow vaporizer for use in a refrigeration system employing hot gas from the compressor to periodically defrost the cooling coil, or coils where multiple coils are employed.  The hot gas cooled in the defrosting coil produces liquid refrigerant droplets that may damage the expensive compressor.  The vaporizer usually consists of three concentric circular cross-section tubes forming a first inner passage, a concentric second annular passage, and a concentric third annular passage.  The inner tube receives the fluid from the coil and has one end blocked.  It is provided in its wall with a plurality of fine bores directing the fluid forcefully radially outwards under the action of the high velocity gas component of the fluid against the inner wall of the middle tube, which is heated by the hot gas that is passed through the third annular passage before being fed to the coil to perform the defrost function.  The flow capacities of the passages and the bores are chosen to be in a specific range of flow capacities relative to one another, usually in the range 0.5 to 1.5, preferably in the range 0.9 to 1.2, so that when not in use the vaporizer has no appreciable effect on the remainder of the system.  The vaporizer allows refrigerant to pass through it in either direction, and this is particularly advantageous in a heat pump installation.
Patent CA-1292063-C (CA)
Title: Radar reflector
Inventor: BELL STEPHEN W
IPC: H01Q15/18
Filed: 1987-12-15
Granted: 1991-11-12
Abstract: Radar Reflector ABSTRACT OF THE DISCLOSURE       A radar  reflector  (4,  5)  comprises  a  hollow, generally spherical or conical radar transmitting housing (6) containing a radar reflecting assembly (10) having a number  of  trihedral  cube  corner  reflecting  elements arranged in strings one above the other and with a number of the strings arranged side-by-side around the inside of the housing (6).  The radar reflecting assembly (10) may comprise strings of reflecting elements with the origins of all of the reflecting elements lying on and being arranged around a frusto-conical surface and with all of the reflecting elements facing outwards.  Preferably, the radar reflecting assembly (10) comprises at least three strings  of  single  or double-handed  helical  reflecting element arrays (20) arranged side-by-side.
Patent CA-1308046-C (CA)
Title: Snap-together storage container with nesting elements
Inventor: KURKJIAN CHARLES V
IPC: B65D85/00
Filed: 1988-02-17
Granted: 1992-09-29
Abstract: SNAP-TOGETHER STORAGE CONTAINER      WITH NESTING ELEMENTS              ABSTRACT OF THE DISCLOSURE         A readily assembled covered container is dislosed.  The container has a pivoting cover which snap-attaches to a tray.  In the disclosed embodiment, bosses provided on the rear sidewalls of the tray are received in bores formed in the rear sidewalls of the cover to attach the cover to the tray.  The bosses have a beveled surface that facilitates cover attachment, and each bore advantageously has a ramp-like channel associated with it that directs a respective boss to engagement within its bore.  The tray nests within the inverted cover in a compact arrangement for improved packing, shipping and storing.
Patent CA-1284607-C (CA)
Title: Duct pressure powered air volume controller
Inventor: TULOWIECKI DAVID A
IPC: F24F11/04
Filed: 1988-04-06
Granted: 1991-06-04
Abstract: DUCT PRESSURE POWERED AIR VOLUME CONTROLLER                  ABSTRACT OF THE DISCLOSURE            A duct pressure powered air volume controller controls the flow through a terminal responsive to the differential pressure across a nozzle plate, the selected ventilation requirements, and the temperature of the supplied air, the zone and the setpoint.
Patent CA-1330640-C (CA)
Inventor: ROMBERG VAL G
IPC: C08J7/046
Filed: 1988-04-07
Granted: 1994-07-12
Abstract: ABSTRACT OF THE DISCLOSURE             A closure for use with a container with pharmaceutically pure contentstherein. The elastomeric closure has an elastomeric base and a continuous polyparaxylylene coating on the base. The coating ranges from about 0. microns to about 2.0 microns In thickness. The closure member has a coefficient of friction of 1.0 or less than 1.0 and is capable of substantially preventing metal extraction from said elastomers.
Patent CA-1314355-C (CA)
Title: Hydrophilic polymer and method for production thereof
Inventor: IRIE YOSHIO
IPC: C08F6/00
Filed: 1988-04-29
Granted: 1993-03-09
Abstract: ABSTRACT OF THE DISCLOSURE A method for the production of a hydrophilic polymer having a small residual monomer content from a hydrated gel polymer, which method comprises drying said hydrated gel  polymer by  contact  thereof  with  a  gas containing at least steam and having a dew point in the range of 50° to 100°C at a temperature in the range of 80°C  to  250°C,   and  a  hydrophilic  polymer  obtained therefrom.
Patent CA-1287903-C (CA)
Title: Steam trap operation detector
Inventor: YUMOTO HIDEAKI
IPC: G01H11/06
Filed: 1988-05-06
Granted: 1991-08-20
Abstract: ABSTRACT     A steam trap operation detector is provided with a vibration detecting section and an arithmetic section.  The detecting section includes a probe, a diaphragm for generating ultrasonic vibration in response to mechanical vibrations sensed by the probe and a vibration sensor for converting the ultrasonic vibration into an electrical signal.  The detector also includes an arithmetic section for receiving an amplified signal from the vibration sensor and processing the same into information indicative of the operation of the steam trap.
Patent CA-1330990-C (CA)
Inventor: KRENITSKY THOMAS A
IPC: A61K31/7042
Filed: 1988-05-27
Granted: 1994-07-26
Abstract: ABSTRACT The  present  invention  relates  to  sub-stituted  purine  arabinosides  and  their  pharma-ceutically acceptable derivatives especially esters and their use  in the treatment and prophylaxis of varicella    zoster    virus    and   cytomegalovirus infections,   as well as pharmaceutical formulations containing the arabinosides or their derivatives and processes for the preparation of such compounds;  the arabinosides are of formula (I):       (I) wherein R1 represents a halogen atom,  a C1-5 alkoxy group;   halogen-substituted C1-5 alkoxy;   an  amino group which is mono- or di-substituted by C1-5 alkyl, C1-5 alkyl substituted by one or more fluorine atoms, or C3-6 cycloalkyl,  or the amino member of a ring containing 4-7 carbon atoms and optionally a double bond and/or a further nitrogen atom;  and R2 repre-sents hydrogen, halogen or amino.
Patent CA-1330077-C (CA)
Inventor: MYLLYMAKI OLAVI
IPC: A23L7/10
Filed: 1988-08-11
Granted: 1994-06-07
Abstract: Abstract The invention relates to a process for fractioning crops by using a combined dry and wet milling and extraction methods, whereby extruding or percussive devices and operating methods are used in the dry milling step, and a thermal treatment, solvent extraction and mechanical treatment, which destroy moat of the enzymes, are combined in the first wet milling step.
Patent CA-1336262-C (CA)
Title: Mycoplasma vaccine
Inventor: STORM PAUL KAREL
IPC: A61P31/04
Filed: 1988-09-16
Granted: 1995-07-11
Abstract: The present  invention is concerned with a nove Mycoplasma vaccine which is avirulent for chickens an is not pathogenic  for turkeys.  In particular such vaccine contains the Mycoplasma  strain  Intervet  6/8 (deposit No.  I-673 at CNCM,  Pasteur Institute,  Paris France).
Patent CA-1325841-C (CA)
Inventor: RIEDEL HANS-DIETER
IPC: G01S7/52
Filed: 1988-10-19
Granted: 1994-01-04
Abstract: ABSTRACT OF THE DISCLOSURE         A monitoring apparatus for a safety device for driving a vehicle in reverse comprising at least two transmitter/receiver pairs which are mounted at the back of the vehicle and which oper-ate by reflecting sound.  Each transmitter/receiver is associated with an electroacoustic transducer.  An acoustic shunt is posi-tioned between neighboring transducers.  The transmitter/receiver pairs alternate cyclically to acquire an object.   The signal re-ceived from a neighboring transmitter is evaluated as a function control signal.
Patent CA-1336413-C (CA)
Inventor: LEAR MARK
IPC: F01N3/20
Filed: 1988-10-25
Granted: 1995-07-25
Abstract: A two stroke cycle engine 10 with an exhaust gas treatment catalyst. Separate reducing and oxidising catalyst portions 126 and 127 are provided to treat different portions of the exhaust gas exhausted during each exhaust period. The portion of the exhaust gas high in NOx, usually that first exhausted upon initial opening of the exhaust port, is directed to be treated bythe reducing catalyst 126 and the remainder of the exhaust gas is directed to betreated by the oxidising catalyst 127.
Patent CA-1328224-C (CA)
Inventor: DEGENHARDT CHARLES R
IPC: A61K31/80
Filed: 1988-12-16
Granted: 1994-04-05
Abstract: ORAL COMPOSITIONS                           Abstract Anticalculus and antiplaque oral care compositions containing geminal   diphosphonate   polymer   anticalculus   agents and a pharmaceutically acceptable carrier,  and method  for  inhibiting formation of calculus and plaque in the oral cavity by treatment with geminal diphosphonate polymers.
Patent CA-1331657-C (CA)
Title: Method for improving rubber vibration isolator properties
Inventor: KURIMOTO ISAO
IPC: C08L7/00
Filed: 1989-03-06
Granted: 1994-08-23
Abstract: ABSTRACT          A rubber vibration isolator lowered in the dynamic-to-static modulus ratio and improved in the durability is obtained by blending a natural rubber and/or a synthetic rubber with a filler and a dinitrodiamine compound represented by the formula of         (I) wherein X is a divalent aliphatic, alicyclic or aromatic group which may contain halogen or oxygen in the group, R1 is hydrogen, an aliphatic group, an alicyclic group or an aromatic group, with the proviso that two nitrogen atoms linking through X may further link through R1 when both X and R1 are the aliphatic groups, and R2 and R3 independently of one another are each hydrogen or an alkyl of 1 to 12 carbon atoms, with the proviso that R2 and R3 may conjointly form a ring.
Patent CA-1335506-C (CA)
Title: Liquid substituted 2h-benzotriazole mixtures
Inventor: WINTER ROLAND A E
IPC: B01J29/06
Filed: 1989-04-07
Granted: 1995-05-09
Abstract: Liquid substituted 2H-benzotriazole mixtures are prepared by alkylationwith concomitant dealkylation, fragmentation and/or realkylation of 2-(2-hydroxy-5-alkylphenyl)-2H-benzotriazoles or of 2-(2-hydroxy-3,5-dialkylphenyl)-2H-benzotriazoles with straight or branched alkenes of 8 to 40 carbon atoms in the presence of an acid catalyst at 100 - 200°C. The liquid mixtures exhibit outstanding efficacy in protecting organic substrates from light induced deterioration as well as good resistance to loss by volatilization or exudation during the processing of stabilized compositions at elevated temperatures.
Patent CA-1341041-C (CA)
Title: Gallium purification using n-organohydroxamic acids
Inventor: MONZYK BRUCE FRANCIS
IPC: C01G15/00
Filed: 1989-05-25
Granted: 2000-06-27
Abstract: Gallium is purified by washing organic solutions containing hydroxamic acid complexes of gallium with aqueous solutions, individually or in series, especially amine or ammonia solutions, and dilute acid solutions. The method is applicable to a variety of gallium sources, and capable of producing gallium of extremely high purity, especially with a repetitive procedure.
Patent CA-1335933-C (CA)
Inventor: USHIDA YOSHIHISA
IPC: H01L41/187
Filed: 1989-05-26
Granted: 1995-06-20
Abstract: Disclosed is a ferroelectric ceramic material which is a Perovskite solid solution and is represented by the formula:           Pb1-aMa (Mg1/3 Nb2/3)x Tiy Zrz O3 (wherein M is Ba or Sr, x + y + z is 1, a is from 0 to 0.10, x is from 0.05 to 0.70, y is from 0.25 to 0.50 and z is from 0.05 to 0.70). The solid solution contains at least one oxide selected from Group A: La2O3, Bi2O3 and Nd2O3; and at least one oxide selected from Group B: NiO, Fe2O3, SnO2 and Ta2O5, with the proviso that NiO or Fe2O3 must be contained. The ferroelectric ceramic material has a large piezoelectric strain constant d. Also disclosed is a ferroelectric ceramic which is a Perovskite solid solution and is represented by the formula:              Pb1-aMa (Mg1/3 Nb2/3)x Tiy Zrz O3 containing in solution at least one oxide selected from the Group A: La2O3, Bi2O3 and Nd2O3; and at least one oxide selected from Group B: NiO, ZnO, Fe2O3, SnO2 and Ta2O5, with the proviso that NiO, Fe2O3 or Ta2O5 must be contained and that the solid solution further contains MnO2.
Patent CA-1338299-C (CA)
Title: Syndiotactic polypropylene
Inventor: EWEN JOHN A
IPC: C08F110/06
Filed: 1989-06-20
Granted: 1996-04-30
Abstract: The  invention provides a new structure  for syndiotactic polypropylene in which the microstructure of the polymer chain consists  of  blocks  of  repeating  racemic  (r)  dyads  being predominantly connected by units consisting of a meso triad (mm). The polymer is also highly crystalline and consists of a high percentage of racemic (r) dyads, having a [r] value of larger then 0.80  and a  [rrrr]  value of  larger than  0.70.   This highly crystalline structure of syndiotactic polypropylene is achieved by use of a novel metallocene as a catalyst of the formula:                       R"(CpRn)(CpR')MeQk wherein   each   Cp   is   a   cyclopentadienyl   or   substituted cyclopentadienyl ring; Rn and R'm are hydrocarbyl radicals having 1-20 carbon atoms, each Rn may be the same or different, and each R'm also may be the same or different, R'm being selected such that (CpR'm) is a substantially different substituted ring than (CpRn); R" is a structural bridge between the two Cp rings imparting stereorigidity to the Cp rings, and R" is preferably selected from the group consisting of an alkyl radical having 1-4 carbon atoms or a hydrocarbyl radical containing silicon, germanium, phosphorus, nitrogen, boron, or aluminum; Me is a Group 4b, 5b, or 6b metal from the Periodic Table of Elements; each Q is a hydrocarbyl radical having 1-20 carbon atoms or is a halogen; 0  k  3; 0  n  4; and 1  m  4.
Patent CA-1309580-C (CA)
Title: Utility knife
Inventor: SHAANAN GAD
IPC: B26B1/08
Filed: 1989-06-20
Granted: 1992-11-03
Abstract: Abstract A utility knife comprises a hollow casing formed  by  a  pair  of  elongated  members  pivotally mounted one to the other at one end of the casing.  A blade  passage  is  provided  at  another  end  of  the casing.     The  elongated  members  are  adapted  for movement  in  substantially  parallel  planes  between aligned  closed   functional   and   open   diverging positions.   The casing is provided with a mechanism adapted to carry and selectively position a blade. The utility knife further comprises a locking member pivotally mounted to one of the elongated members and adapted in a closed position thereof to secure the elongated members in their aligned closed position. A pin extending inwardly from one of the side arms of the locking member is adapted to cooperate with a camming  surface  provided  on  the  other one  of the elongated members  in  order  that,   upon  rotational movement of the locking member away from the closed position thereof,  the elongated members are forcedly divergingly pivoted one with  respect to the other about the other end of the casing and away from the aligned closed position thereof.  As the spreading of the elongated members has been initiated by the pivot of the locking member the manual  spreading of the elongated members towards   the full open diverging blade  removal  and replacement  position  thereof  is facilitated  as well  as  reduced.     The  elongated members interlock at the blade passage to prevent the lateral spreading of the casing during use.
Patent CA-1336929-C (CA)
Title: Water-repellent film-forming composition
Inventor: NANISHI KIYOSHI
IPC: C09D133/16
Filed: 1989-06-23
Granted: 1995-09-05
Abstract: A water-repellent film-forming composition comprising [A] a polymer selected from the group consist-ing of (a) a (co)polymer composed of 5 to 100 % by weight of a fluoroalkyl group-containing (meth)acrylic monomer represented by the following general formula (I)   (I) wherein R1 represents a hydrogen atom or a methyl group, ? is an integer of 1 to 11, and Rf represents -CmF2m+1 or -CnF2nH in which m is an integer of 1 to 20 and n is an integer of 1 to 20, and 0 to 95 % by weight of an un-saturated monomer copolymerizable with the fluoroalkyl group-containing (meth)acrylic monomer, (b) a copolymer composed of 0.1 to 75 % by weight of a silicon-containing polymerizable unsaturated monomer represented by the following general formula (II)                              (II) wherein R2 represents a hydrogen atom or a methyl group, and R3 represents a group of the formula   in which j is an integer of 0 or 1, k is an integer of 0 to 6, p is an integer of 1 to 5, q is an integer of 1 to 20, r is an integer of 0 to 2, s is an integer of 1 to 3, and r + s=3, and 25 to 99.9 % by weight of an unsaturated monomer copolymerizable with the silicon-containing polymerizable unsaturated monomer, and (c) a mixture of the (co)polymer (a) and the copolymer (b), and [B] a particulate material having an average particle diameter of not more than 5 micrometers.
Patent CA-1331074-C (CA)
Inventor: DE CASTIGLIONE ROBERTO
IPC: C07K7/08
Filed: 1989-07-20
Granted: 1994-07-26
Abstract: TITLE:          Irreversible Peptide Ligands for Bombesin Receptors ABSTRACT:          Peptides of formula A-B-C-D-Gln-Trp-Ala-Val-X-Y-T-W          (either A=H, Boc; Ac; one of B and C = pMel, mMel; the other of B and C = valence bond, Gly, Leu-Gly, E -Leu-Gly, Gln- E -Leu-Gly,E,E-Gly with E-Arg(A), arg(A) Lys(A), lys(A), Orn(A), orn(A) or A=H, B-Glp-Arg-Leu-Gly, C=pMel or mMel; and D = sigma bond, Asn, Thr;          X = Gly, ala;          Y = valence bond, His(R1), his(R1), Phe, phe, Ser,ser, Ala, ala;          T = valence bond, Leu, leu, Phe,phe;          W = OH,NH2,NH(CH2)4CH3, NH(CH2)2C6H5, Met-R2, Leu-R2, Ile-R2, Nle-R2;          R1 = H, Tos, Dnp, Bzl;          R2 = NH2, OH, OCH3, NHNH2) and their pharmaceutically acceptable salts are irreversible peptide ligands for Bombesin receptors.   Their preparation and pharmaceutical compositions containing them are also described.
Patent CA-1311106-C (CA)
Title: Space frame
Inventor: CODD EDWIN T
IPC: E04B1/19
Filed: 1989-07-25
Granted: 1992-12-08
Abstract: ABSTRACT           A space  frame of double-layer flat grid type, in which the upper grid is skewed or angularly displaced by 45°  relative to the lower grid, has pairs of oblique struts (16) connecting the lower grid nodes (14)  to the upper grid  nodes (15).  At a lower grid node (14) where two chords (10,11) are superimposed, one pair of oblique struts (16) in a vertical plane through one chord (10) has a common terminal  (17) between the two  chords (10 and 11).  A bolt (22) through the terminals (17) and the chords (10 and 11) secures the  parts together.   At the nodes (15)  of the upper grid, the terminals (19) of the struts  116)  are  interposed  between  the superimposed upper grid chords (12 and 13) and secured by bolts (21).
Patent CA-1329621-C (CA)
Title: Naphthoquinones in the treatment or prophylaxis of pneumocystis carinii infections
Inventor: LATTER VICTORIA S
IPC: C07C50/32
Filed: 1989-08-15
Granted: 1994-05-17
Abstract: ABSTRACT   The present invention relates to the use of known and novel naphthoquinones in the treatment  and prophylaxis of  Pneumocystis carinii infections,  and for the manufacture  of medicaments  for the treatment  and prophylaxis  of P.carinii infections,  novel formulations  containing said  compounds,  and novel naphthoquinones of formula (VI):       (VI) wherein R11 and R12 each represent -O and the dotted line represents a double  bond between the  2 and  3 positions  of the  quinone ring,  in which  case  R13 represents a group -OCOR5;  a group OR6  or SR6; or a  group NR7R8; or  the dotted line represents  double bonds at  the 1,2 and  3,4 positions of  the quinol ring and R11, R12 and  R13 each represents a group  -OCO?14,  wherein R14 represents an optionally substituted C1-10alkyl group.
Patent CA-1327052-C (CA)
Inventor: SHROOT BRAHAM
IPC: G01N33/534
Filed: 1989-08-31
Granted: 1994-02-15
Abstract: Groupement d'Intérêt Economique dit : CENTRE INTERNATIONAL DE RECHERCHES DERMATOLOGIQUES (CIRD) "Nouveau composé marqué au tritium, sa préparation et son application notamment dans la détermination de l'affinité des rétinoïdes pour leurs récepteurs nucléaires et leur protéine de liaison cytosolique". Acide 4-(5,6,7,8-tétrahydro-5,5,8,8-tétraméthyl-2-anthracenyl) benzoïque marqué au tritium; sa préparation et son utilisation notamment comme marqueur radioactif dans le dosage des récepteurs nucléaires et de la CRABP, la mesure de l'affinité des rétinoïdes pour les récepteurs nucléaires et la CRABP, le dosage des rétinoïdes connus, la caractérisation d'anticorps dirigés contre ce composé, et pour étudier la distribution et le métabolisme de ce composé.