baber/WOPTO huggingface dataset:
Patent CA-1304919-C (CA)
Title: Method of making mold used in slip casting process
Inventor: ITO HARUYUKI
IPC: B28B1/26
Filed: 1987-07-24
Granted: 1992-07-14
Abstract: ABSTRACT         A mold for pressure slip casting is made by preparing at least two porous bodies each with a filter layer having channels permitting water and air to flow therethrough.  A reinforcing iron frame is placed in one of the porous bodies on a bottom board with a parting agent on its surface.  A sealing resin is applied to the surface of the other porous body opposite to a molding surface and to a part of the surface of the bottom board.  The space between the porous bodies and the frame is filled with a filler.  The first part is turned upside down together with the one porous body and the frame.  The other porous body is overlaid on the one porous body with the second reinforcing frame overlaid i   on the first reinforcing frame.  Adhesive is applied to the sealing resin and the inner side of the second frame after curing of the resin.  The space between the overlaid second frame and the other porous body is filled with a filler to prepare a second part of the pressure mold which is parted from the first part after curing of the filler.
Patent CA-1300463-C (CA)
Title: Sustained detergent release wash wipe
Inventor: FLOYD DAVID T
IPC: C11D1/52
Filed: 1987-07-30
Granted: 1992-05-12
Abstract: ABSTRACT      A polyolefin wash wipe containing a detergent and a long chain alkanolamide exhibits significant sustained time release of detergent, thereby enabling the user to repeatedly rinse the wipe while still retaining detergent for cleaning.
Patent CA-1308108-C (CA)
Title: Antihypertensive benzopyran derivatives
Inventor: QUAGLIATO DOMINICK A
IPC: C07D311/72
Filed: 1987-10-27
Granted: 1992-09-29
Abstract: ABSTRACT OF THE DISCLOSURE   Disclosed herein are novel benzopyrans having pharmacologica1 activity, to a process for preparing them, to pharmaceutical compositions containing them, and to their use in the treatment of hypertension. The benzopyrans have the following formula (I)                   (I) wherein R1 is trifluoromethoxy or .beta.,.beta.,.beta.-trifluoroethoxy; R2 and R3 are independently selected from the group consisting of hydrogen, lower alkyl containing 1 to 5 carbon atoms, cyclo lower alkyl containing 5 to 8 carbon atoms,   or R2 and R3 are joined to form ?CH2?n wherein n is 4 to 7; or R2 and R3 are joined together to form ?CH2?m?- wherein m is 3 to 6; or R2 and R3 are joined together to form                          or wherein R4 is selected from the group consisting of hydrogen, alkoxy containing 1 to 5 carbon atoms, amino or mono- or disubstituted alkyl amino wherein said alkyl groups contain 1 to 5 carbon atoms.
Patent CA-1297490-C (CA)
Title: Preparation of a novel diisocyanate from norbornadiene
Inventor: ALEXANIAN VAZKEN A
IPC: C07C265/14
Filed: 1987-10-30
Granted: 1992-03-17
Abstract: PREPARATION OF A NOVEL DIISOCYANATE FROM NORBORNADIENE             ABSTRACT Novel bicyclic alkyl dicarbamates are prepared from norbornadiene and other simple starting materials, and these are subsequently thermally cracked to novel diisocyanate norbornyl derivatives, which are, among others, useful for crosslinking active hydrogen compounds.
Patent CA-1319779-C (CA)
Title: Thixotropic formulations, use of polycarboxylic acid amides to produce them, and silica coated with polycarboxylic acid amides
Inventor: HAUBENNESTEL KARLHEINZ
IPC: C08K9/04
Filed: 1988-03-03
Granted: 1993-06-29
Abstract: Abstract Hydroxyfunctional carboxamide compounds of formula I                                 (I) are included in thixotropic formulations containing highly disperse silica as a thickening or thixotroping component in order to activate the silica or enhance its effect, to ameliorate any tendency of the silica to settle and/or to prevent weakening of the thixotroping effect of SiO2 in formulations which themselves form relatively strong hydrogen bonds.  The compounds of formula I may be added to silica-containing thixotropic liquid formulations to improve the thixotropy, or highly disperse silica may be coated with such compounds for later incorporation into liquid systems to render them thixotropic.
Patent CA-1317393-C (CA)
Title: Preparation of thermoplastic resin composition by solid state polymerization
Inventor: GINNINGS PAUL R
IPC: C08J5/00
Filed: 1988-03-04
Granted: 1993-05-04
Abstract: Abstract of the Disclosure PREPARATION OF THERMOPLASTIC RESIN COMPOSITION BY SOLID STATE POLYMERIZATION               This invention relates to a process for preparing a thermoplastic resin composition through a solid state polymerization process.  The thermoplastic resin composition made in accordance with this invention is particularly suitable for use in thermoforming thin walled articles.  The process of this invention specifically comprises (1) melt blending a polyethylene terephthalate prepolymer with at least one liquid crystalline polymer to produce a polyethylene terephthalate/liquid crystalline polymer blend; and (2) solid state polymerizing said polyethylene terephthalate/liquid crystalline polymer blend at a temperature within the range of about 195°C to about 255°C for a period of at least about 1 hour to produce a thermoplastic resin composition.  The subject invention also deals with thermoforming such thermoplastic resin compositions into articles, such as food trays, having a crystallinity within the range of about 10% to about 40%.
Patent CA-1303691-C (CA)
Title: Carrier recovery phase-locked loop
Inventor: NAKAMURA SHIGEKI
IPC: H04L27/227
Filed: 1988-03-23
Granted: 1992-06-16
Abstract: ABSTRACT OF THE DISCLOSURE         A carrier recovery phase-locked loop for recovering a carrier from a digitized quadrature phase shift keying modulated wave arriving on time division basis comprises a PLL circuit, first unit, responsive to the received signal, for preparing a phase comparator's characteristic adapted for a binary phase shift keying modulated wave, second unit, also responsive to the received signal, for preparing a phase comparator's characteristic adapted for the quadrature phase shift keying modulated wave and switching unit for selec-tively supplying output signals from the first and second units to the PLL circuit.  During reception of a preamble, the carrier is recovered using the binary phase comparator's characteristic through the PLL circuit.
Patent CA-1302593-C (CA)
Title: Box spring assembly
Inventor: DABNEY UPTON R
IPC: A47C23/043
Filed: 1988-03-28
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE      An improved spring unit for a box spring assembly in which a grid assembly is  supported above a frame  by a plurality  of such spring  units.   The  spring  units  provide  self-limited deflection to prevent  them from taking  a permanent set  after being overloaded.   Each  unit  has  two  separate  legs  which support the  spring  assembly  grid assembly  to  reduce  point loadings on the grid assembly.   The top portion of the  spring spreads out forces  over a large  area on the  grid to  further reduce point loading.   The configuration of  the spring  units enables them  to  be  stacked densely  without  interlacing  or twisting.  The spring units include  a center base bar, a  pair of torsion bars extending  perpendicularly therefrom, a  center torsion bar which is connected to the upper and lower  portions of the spring by  connecting bars, and a  top portion having  a torsion bar and  a pair of  bar members extending  in the  same horizontal plane.
Patent CA-1333451-C (CA)
Title: Single multi-function handpiece for dental instruments
Inventor: WARRIN GEORGE E
IPC: A61C17/00
Filed: 1988-04-15
Granted: 1994-12-13
Abstract: A single handpiece that can be used in multiple dental treatments is provided.  The handpiece comprises a housing having a coil for producing an electromagnetic or electrostrictive field in the housing, and a number of inserts that react with the electromagnetic or electrostrictive field and can be used with the housing to complete the handpiece.  A switching system used with the handpiece, which electrically recognizes the particular insert used with the housing provide for automatically controlling circuitry that determines which of a number of materials and medicaments are to be delivered to the handpiece for use with a particular insert.  Circuitry which provides better control of the ultrasonic insert in the handpiece is also provided.
Patent CA-1302382-C (CA)
Title: Steam control valve
Inventor: HEYMANN FRANK J
IPC: F01D17/14
Filed: 1988-04-29
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE    A steam flow control valve for controlling large fluid flow rates, the valve having a reduced response to   vibrational   excitations   experienced   during throttling.   A valve stem extending outward from the valve body and connected in the valve to a valve plug is guided by a substantially rigid cylindrical bushing extending substantially through the valve body.   The bushing has an inner surface for guiding movement of the  valve  stem  and  an  outer  surface  for  guiding movement of  the valve plug.   The plug  includes  an inner  annular  guide  ring  about  an  upper  edge  for sliding  along  the outer  surface of  the bushing and limiting transverse motion.
Patent CA-1326109-C (CA)
Inventor: MORIARTY ANN M
IPC: C07K16/00
Filed: 1988-05-25
Granted: 1994-01-11
Abstract: ABSTRACT Cloning and expression vectors for hepatitis B HBxAg, cell cultures containing those vectors, polypeptides related to HBxAg and diagnostic systems and methods for assaying for the presence of HBxAg and anti-HBxAg antibodies in a body sample are disclosed.
Patent CA-1303598-C (CA)
Title: Nitrogen containing dispersants treated with mineral acids
Inventor: VETTEL PAULA R
IPC: C10M143/00
Filed: 1988-06-20
Granted: 1992-06-16
Abstract: Abstract A dispersant composition comprising the reaction pro-duct of an ashless dispersant selected from the group con-sisting of (i) Mannich dispersants, (ii) succinimide dispersants, (iii) succinate ester-amide dispersants, and (iv) polymeric viscosity index improvers having amine dis-persant character, with an inorganic mineral acid selected from the group consisting of sulfuric, nitric and hydro-chloric acids.
Patent CA-1302112-C (CA)
Inventor: MENGERINGHAUSEN MAX
IPC: B28B13/02
Filed: 1988-06-20
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE    With the composite plates for raised floors which are supported at their four corners and consist of a shell with open top and manufactured of tension-resistant material as well as a filling of pressure-resistant material, for instance anhydrite, when the plate is under stress there is a higher deflection at the plate border than in the middle of the plate, which is undesirable.  In order to substantially equalize the bearing strength of composite plates of the above structural design in the border and the middle of the plate and to assure such plates against rupture at the border, a reinforcement which is practically plate-high is provided on the side wall of the shell, which is connected force-locking with the bottom plate of the shell.  In addition or alternatively thereto the density and strength of the filling in the border area of the composite plate could also be increased at least twofold as compared with the rest of the area extending toward the middle of the plate.
Patent CA-1290794-C (CA)
Title: Fuse package
Inventor: HERRMANN ALAN J
IPC: H01H85/02
Filed: 1988-08-31
Granted: 1991-10-15
Abstract: FUSE PACKAGE         Abstract of the Disclosure A fuse package for a row of plug-in type fuses comprises a cover, a fuse retainer and an insulator block.  The fuses are initially held within the cover by the fuse retainer which maintains the cover and fuses as a unitary assembly that is separately handled and installed on the insulator block.  When installed the fuse retainer locks onto the insulator block and is released from the cover so that the fuses stay with the insulator block when the cover is removed.
Patent CA-1336243-C (CA)
Title: Psyllium-containing filling compositions and methods
Inventor: CAPPEL JAMES WILBUR
IPC: A23L29/238
Filed: 1988-09-02
Granted: 1995-07-11
Abstract: Psyllium-containing filling compositions having excellent texture, mouthfeel, and palatability. These filling compositions essentially comprise psyllium fiber and higher levels of glycerin, and preferably comprise sweeteners and flavorants. Furthermore, they have water activities ("Aw") below about 0.35. The compositions are ingested to control constipation, bowel function, blood cholesterol levels, blood glucose tolerance, and/or appetite, as well as for prophylaxis and treatment of intestinal disorders.
Patent CA-1307086-C (CA)
Inventor: DAVIS KENT A
IPC: B65D75/30
Filed: 1988-09-08
Granted: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE            A vacuum skin package for packaging fresh red meat and like articles is produced by using a composite, multilayer, oxygen barrier,  vacuum skin packaging  forming  film  in which the barrier layer can be manually separated from the non-barrier, oxygen permeable layer.   After the vacuum skin package is formed to enclose a fresh red meat product in a vacuum the meat will have a purplish color.   Then, after storage, the barrier layer can be removed so that the remaining permeable film can admit oxygen to impart the desirable red bloom to the fresh meat.  Of importance is the "tear through" feature of  the  permeable  inner  layer  which  has  a  greater  bond strength to the tray than internal strength or layer-to-layer bond strength so that a tab may be torn loose at a score line and then the barrier layer may be readily delaminated and peeled from the permeable layer.
Patent CA-1306364-C (CA)
Title: Method for installing a pavement underdrain
Inventor: HAAS JON A
IPC: E01C11/24
Filed: 1988-11-14
Granted: 1992-08-18
Abstract: ABSTRACT           A method for inhibiting roadbed erosion and damage to roadways utilizes an underdrain system for removing water which causes such damage.  Underdrains in the form of perforate pipes, preferably covered with a geotextile sock as a filter, are disposed transversely to the lenthwise direction of the roadway in close proximity to faults, cracks, joints and other fissures in the roadway.  The underdrains conduct water away from such fissures thereby preventing roadbed particulate material from being pumped upwardly through the fissures together with water which collects below the concrete roadway.  Such an installation is highly useful for preventing further damage to existing roadways, and may be installed without interrupting traffic or destroy-ing the road surface by means of a pneumatic underground piercing tool.
Patent CA-1311021-C (CA)
Title: Method and circuit for the reduction of the temperature dependency of the oscillating parameter of an oscillator
Inventor: HEIMLICHER PETER
IPC: H03K17/95
Filed: 1988-11-28
Granted: 1992-12-01
Abstract: ABSTRACT       The positive feed back necessary for maintaining the oscillation of the LC oscillating ciruit takes place through two positive feed back paths, one of which compensating the temperature dependent influences while the other compensate temperature independent influences.                                             (Figure 2)
Patent CA-1304952-C (CA)
Title: Insulating formwork for concrete wall
Inventor: MEILLEUR SERGE
IPC: E04B2/86
Filed: 1988-12-16
Granted: 1992-07-14
Abstract: ABSTRACT OF THE DISCLOSURE:          There is disclosed an insulating formwork for casting a concrete wall,  the formwork having a pair of sidewalls each of which is made-up of a plurality of coplanar edge-abutting modular panels made of insulating foam material.  Each panel  has upper and lower edges with coplanar slits provided therealong, and a pair of vertical end edges respectively provided with a tongue-and-groove to form vertical tongue-and-groove joints with other like adjoining panels.  A rabbet opens onto the panel inner face and  onto  the panel  lower edge.   The panels  are interconnected by a first group of angle-irons having vertical branches fitting into the upward slits, of the panels,  and horizontal branches,  pierced with holes, extending toward the panel inner face.  The panels are also interconnected by a second group of angle-irons having vertical branches fitting into the downward slits of the panels and horizontal branches, also perced with holes, extending toward the panel inner face and overlapping the horizontal branches of the angle-irons of the first group.          The holes register together and the tie-rods hold the side-walls together.  The tie-rods have a central portion between the sidewalls and bent end portions extending through the panels.  Elbows between the portions fit into the rabbets.
Patent CA-1323316-C (CA)
Title: Drum
Inventor: PRZYTULLA DIETMAR
IPC: B65D1/12
Filed: 1988-12-20
Granted: 1993-10-19
Abstract: ABSTRACT A drum of thermoplastic material comprises a rolling ring which projects from the drum shell in the vicinity of the bottom of the drum. The rolling ring in the cross-section is approximately trapezium-shaped. The narrowest area of the ring is at the base of the ring groove, and the axial end face of the ring is coplanar with the plane of the drum bottom.
Patent CA-1297775-C (CA)
Title: Furniture wedge seat assembly
Inventor: CROSBY LAWTON H
IPC: A47C23/12
Filed: 1988-12-28
Granted: 1992-03-24
Abstract: ABSTRACT OF THE DISCLOSURE           A furniture wedge seat comprising a wedge shaped frame including a relatively short front rail, a relatively long back spring rail, and converging (back-to-front) side rails.  A spring assembly includ-ing primary load bearing spring elements is mounted in the frame with these primary elements disposed parallel to each other.  Bracketing the primary spring elements are secondary cushion bearing spring elements.  The primary and secondary elements are interconnected by tie wires.
Patent CA-1322817-C (CA)
Title: Low density silicone foam
Inventor: URIARTE RICHARD J
IPC: C08J9/02
Filed: 1989-02-09
Granted: 1993-10-05
Abstract: LOW DENSITY SILICONE FOAM                 Abstract of the Disclosure A foamable elastomeric silicone foam with reduced foam density and improved cell uniformity is disclosed. The low density silicone foam containing organic alcohol as a hydroxyl source is produced by simultaneous vinyl addition and hydride/hydroxy reactions in the presence of ketoxime compound additives and platinum catalyst.
Patent CA-1314652-C (CA)
Title: Photoreactive polymers and production of a two-layer resist
Inventor: SCHWALM REINHOLD
IPC: G03F7/075
Filed: 1989-02-21
Granted: 1993-03-16
Abstract: Abstract of the Disclosure:  Silicon-containing photo-reactive Polymers have N-ylide structures of N-hetero aromatics which undergo photochemical structural and property changes when exposed to actinic light.  They are suitable for the production of two-layer photoresists.
Patent CA-1330071-C (CA)
Inventor: ELIAS ANTONIO L
IPC: B64G1/00
Filed: 1989-03-08
Granted: 1994-06-07
Abstract: ABSTRACT OF THE DISCLOSURE A rocket-powered, air-deployed, lift-assisted booster vehicle (ALBV) is disclosed for efficiently carrying small payloads to orbital, supraorbital or suborbital altitudes and velocities.  The ALBV is secured beneath a conventional carrier aircraft and dropped therefrom at launch altitude and velocity, which contributes significant total energy to the ALBV's ascent trajectory.  The ALBV has wings, which generate aerodynamic lift to assist in vehicle ascent, and tail fins, which perform attitude control while the vehicle is in the sensible atmosphere. After drop launch, an innovative "vertical-S" maneuver is performed using aerodynamic control, causing the ALBV to ascend on a near-theoretical optimal trajectory.  In the preferred embodiment, the wings and tail fins are jettisoned as the vehicle exits the sensible atmosphere and aerodynamic lift ceases.  This invention represents a dramatic improvement over prior art approaches to orbital payload launch, as it approximately doubles the useful payload that can be carried by the booster compared to identical ground-launched vehicles.
Patent CA-1332707-C (CA)
Inventor: SMITH TERENCE J
IPC: B42D15/10
Filed: 1989-06-19
Granted: 1994-10-25
Abstract: ABSTRACT OF THE DISCLOSURE                          SECURITY CARDS    A security card comprises a data-carrying sheet having a gelatin layer thereon and a transparent polymeric film having a gelatin layer thereon, said sheet and said film being bonded together by an adhesive composition polymerized between and in contact with the gelatin layers, the adhesive composition comprising a carboxylic acid having at least one polymerizable acrylic group.
Patent CA-1334940-C (CA)
Title: Production of glucose oxidase in recombinant systems
Inventor: ROSENBERG STEVEN
IPC: C12P21/02
Filed: 1989-06-21
Granted: 1995-03-28
Abstract: The present invention provides recombinant polynucleotides which encode glucose oxidase (GO).  It also provides recombinant expression systems which produce, and when desired, secrete active GO and GO analogs into the extracellular medium.
Patent CA-1309783-C (CA)
Title: High performance subcarrier multiplexed optical communication system with modulation index exceeding unity
Inventor: OLSHANSKY ROBERT
IPC: H04J14/02
Filed: 1989-09-07
Granted: 1992-11-03
Abstract: HIGH PERFORMANCE SUBCARRIER MULTIPLEXED    OPTICAL COMMUNICATION SYSTEM WITH MODULATION INDEX EXCEEDING UNITY            Abstract An optical communication system includes an optical transmitter for transmitting a subcarrier multiplexed optical signal through a single mode optical fiber to an optical receiver.  The optical transmitter  includes  an  optical  source  for generating a light beam.  The optical source is preferably a high speed laser diode emitting in a spectral range of 1.3-1.6 micrometers.  The light beam  is  intensity modulated with a  composite modulation  signal  comprising multiple modulated microwave carriers.  Each of the microwave carriers intensity modulates the light beam with a modulation index mi  to provide  the  optical  signal  for transmission.  The total modulation index M, defined by M = .SIGMA. mi,  of the optical signal exceeds unity without degradation of the signal-to-noise ratio. By permitting the total modulation index to exceed unity,  a large number of microwave carriers can simultaneously be transmitted, and the information-carrying capacity of the optical  communication system is enhanced.
Patent CA-1318483-C (CA)
Title: Fluidized bed reactor utilizing an internal solids separator
Inventor: ABDULALLY IQBAL F
IPC: B01J8/00
Filed: 1989-09-26
Granted: 1993-06-01
Abstract: FLUIDIZED BED REACTOR UTILIZING  AN INTERNAL SOLIDS SEPARATOR  Abstract of the Disclosure A reactor in which a bed of particulate material including fuel is formed in one of two sections in a vessel.  Air is passed through the bed at a velocity to fluidize said material and promote the combustion of the fuel.  The air and the combustion gases mix and entrain a portion of the particulate material, and pass from the one section to the other section.  A plurality of spaced parallel water tubes are disposed in the path of the mixture and entrained particulate material as they pass through the other section to separate the entrained particulate material from the mixture.     Id/7869U