baber/WOPTO huggingface dataset:
Patent CA-2060996-C (CA)
Title: Air adjustable bed
Inventor: WALKER ROBERT A
IPC: A47C20/04
Filed: 1992-02-11
Granted: 2000-09-19
Abstract: A bed has a foundation for supporting an air mattress. The foundation has a plurality of pivotally connected transverse plates that are moved to bend the mattress to a desired contour and shape. Open top recesses in the foundation located below the plates accommodate bags having flexible walls. The bags are separately expandable and contractible to move the plates to selected elevated positions. The recesses hold the bags in lifting positions relative to the plates when the bags are inflated. The bags fit into the recesses when deflated to allow the plates to move to a horizontal position. The bed is equipped with a vibrator that is operable to vibrate the air mattress.
Patent CA-2062518-C (CA)
Title: Plastic lined concrete structure and method of making the same
Inventor: DAVIDIAN MICHAEL
IPC: C08J5/12
Filed: 1992-03-09
Granted: 1995-03-14
Abstract: A concrete structure, such as a burial vault, having an integrally bonded thermoplastic resin liner. The liner is a rigid molded product having a bottom wall and side walls and an open top.  A thermosetting resin adhesive is applied to the outer surface of the liner and consists of an epoxy resin system, a solvent for the thermoplastic liner, and a surfactant.  Before the adhesive is fully cured, wet flowable concrete is applied to the adhesive layer.  The solvent acts to solubilize the outer surface of the plastic liner, while the surfactant reduces the hydrophobic characteristics of the adhesive to provide a firmly bonded composite structure.
Patent CA-2070993-C (CA)
Title: Battery housing assembly with integral limited travel guide rails
Inventor: ROBACK KENNETH J
IPC: H04B1/38
Filed: 1991-10-17
Granted: 1996-08-27
Abstract: A battery housing base (300) with an integral, sliding channel mechanism (507) for attaching a battery to portable electronic equipment (102) is disclosed. The slide-on battery (105) is captivated by limited travel guide rails (307 through 312) within the sliding channels (507) along each opposite edge of the mating surface (302) of the battery housing base (300). Indentations (313 through 316) are disposed between neighboring limited travel guide rails (307 through 312). The indentations (313 through 316) enable the limited travel guide rails (307 through 312) to be manufactured using a single shot injection, straight pull ejection molding process and to be easily attached to the portable electronic equipment (102). The single shot injection mold process controls all critical interface dimensions on the battery housing base (300) for proper attachment to the portable electronic equipment (102). The critical interface dimensions are disassociated from the attachment of a battery housing base (300) to the battery housing cover (202).
Patent CA-2071475-C (CA)
Title: Mattress with means to support bedclothes above a user's feet
Inventor: LOU KWONG L
IPC: A47C27/00
Filed: 1992-06-17
Granted: 1994-07-26
Abstract: ABSTRACT OF THE DISCLOSURE      A flexible member which extends about foot high is transversely mounted at the foot end of the flat mattress for supporting bedclothes at the foot end area to reduce the pressure on the upward pointed toes when a person sleeps face-up.  Detachable and/or pivotable mounting means allow the flexible member to be mounted on either side and on either end of said mattress.  Further, provision may be made to allow the flexible member to be selectively positioned along the length of the mattress.  The flexible member is provided with electrical heating device and thermostat control for warming up the feet area.
Patent CA-2072489-C (CA)
Title: Catalyst components for polymerization of olefins
Inventor: TAJIMA YOSHIO
IPC: C08F4/651
Filed: 1992-06-26
Granted: 2002-04-02
Abstract: A catalyst component is disclosed for use in the homo-or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula Me1(OR1)p R2q X1 4-p-q and a second compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing high molecular weight, wide distribution thereof and other desirable qualities in the polymer product.
Patent CA-2072569-C (CA)
Title: Belt alignment mechanism for a belt driven vehicle
Inventor: SATZLER RONALD L
IPC: B62D55/08
Filed: 1991-04-29
Granted: 2002-09-17
Abstract: The invention described herein is a belt alignment mechanism for causing the belt of a belt driven vehicle to run true. In such vehicles, the belt runs around wheels and often such belts have a tendency to run to one side of the wheels or in other words not run true. By angling one of the wheels in a direction opposite to the direction the belt runs untrue, the belt can be made to run true. The belt alignment mechanism described herein has a means for angling one of the wheels and a means for fixing the wheel in the angled position so the belt runs true.
Patent CA-2073082-C (CA)
Title: Fractionally spaced cross-polarization interference canceller
Inventor: AONO YOSHIHITO
IPC: H04B7/00
Filed: 1992-07-03
Granted: 1997-09-09
Abstract: A fractionally spaced cross-polarization  interference canceller, wherein a compensation signal is generated through an adaptive filter operating in a frequency that is an integer multiple  of  a  transmission  data  frequency.    The cross-polarization interference canceller includes a mechanism for generating an error signal used to control coefficients of the adaptive  filter  in the  integer multiple  frequency.   The mechanism  is  realized,  for  example, by using a waveform generator generating an estimate of a baseband signal in the integer multiple frequency using a plurality of estimates of transmission data and coefficients determined by an impulse response of a transmission path.
Patent CA-2077357-C (CA)
Title: Tool positioning assembly
Inventor: GLASS SAMUEL W III
IPC: B25J1/12
Filed: 1992-09-02
Granted: 1994-10-18
Abstract: ABSTRACT OF THE DISCLOSURE    A  tool  positioning  assembly  for  use  inside  a  steam generator.   A loading tool assembly removably attachable to a support base is used to insert the support base into the steam generator  through  a  manway  opening.   The  support  base  is removably attached to the steam generator at the manway.   A retractable foot assembly pivotally attached to the support base stabilizes the support base inside the steam generator.  A track assembly removably attachable to the support base after removal of the loading tool assembly receives an arm.  A driven cogwheel on the waist of the manipulator engages a rack on the track assembly and support base for selectively driving and positioning the arm thereon.  A tool coupling mounted on the arm is adapted to receive remotely controlled tools.  The four degree-of-freedom movement of the arm provides access to all tubes in the tubesheet and allows mounting of tools outside the steam generator.
Patent CA-2081389-C (CA)
Title: Gilsonite-lignosulphonate emulsion composition
Inventor: SILVERTON ALBERT G
IPC: C08L95/00
Filed: 1992-10-26
Granted: 2002-06-25
Abstract: A stable homogenous emulsion of gilsonite arid lignosulphonates is disclosed. The lignosulphonates emulsify the gilsonite to produce a stable emulsion that retains an homogenous liquid character (without layer) during prolonged storage as a base stock composition.      The emulsion is compatible with a broad variety of liquids, such as printing ink, wood stains, asphalts, and can be incorporated into such compositions without causing layering of the liquid. Homogeneity and compatibility of the emulsion can be further enhanced by adding an acrylic polymer emulsion to the gilsonite-lignosulphonate mixture.
Patent CA-2083484-C (CA)
Title: Composite orthopedic implant with modulus variations
Inventor: TRENTACOSTA JOSEPH DANIEL
IPC: B29C70/22
Filed: 1991-05-31
Granted: 2004-03-23
Abstract: Novel composite orthopedic devices with modulus variations are disclosed. The device contains an extraosseous portion (11) attached to a first intraosseous portion (12) which is secured to a second intraosseous portion (14); the intraosseous portions may interface with the intramedullary canal of the human femur. The modulus varies along the length of the device, decreasing from the extraosseous portion to the second intraosseous portion. The variations in modules are achieved by forming the device from a composite comprising filaments nonlinearly disposed about the longitudinal axes of the device and within a polymer matrix. The method of making the present orthopedic device is also disclosed.
Patent CA-2084503-C (CA)
Title: Procede et dispositif pour decontaminer les surfaces contaminees par la radioactivite
Inventor: OPERSCHALL HERMANN
IPC: G21F9/00
Filed: 1991-05-29
Granted: 1998-09-15
Abstract: Enter Lorsqu'on nettoie des surfaces contaminées de composants d'une centrale nucléaire, il est important d'éviter de libérer des aérosols radioactifs dans l'atmosphère et de limiter la quantité de déchets radioactifs produits.  La présente invention propose un procédé mécanique comportant l'utilisation d'un agent de décapage au jet (4) selon lequel la zone (2) à décontaminer est entourée, durant le traitement au jet, d'une enveloppe étanche aux poussières (10).  Une unité de jet en circuit fermé (70) est utilisée pour recycler l'agent de décapage au jet.  En outre, l'invention comprend un dispositif permettant d'entreprendre le procédé de décontamination à sec.  Selon un modèle préféré, le dispositif comprend un manipulateur sur lequel est montée une tuyère d'éjection, pour se déplacer sur un rail-guide creux, par laquelle le mélange agent sec-poussières (6) produit est évacué.
Patent CA-2091029-C (CA)
Title: Heterogeneous catalyst for preparing alternating olefin/carbon monoxide copolymers
Inventor: SOMMAZZI ANNA
IPC: C08G67/00
Filed: 1993-03-04
Granted: 2003-07-08
Abstract: A catalyst active in the preparation of alternating olefin/carbon monoxide (CO) copolymers is constituted by: (a) Pd(O2CNEt2)2(NHEt2)2 supported on a solid carrier preferably constituted by hydroxylated silica, (b) an either mono- or bidentate ligand containing one or two nitrogen or phosphorous atoms capable of linking to Pd atom by dative bonds, (c) NOBF4.      Disclosed are the preparation of the catalyst and the use of said catalyst in alternated copolymerization of ethylene (C2) and/or other olefins with carbon monoxide (CO).
Patent CA-2096401-C (CA)
Title: Group facility protection in a digital telecommunications system
Inventor: RICHARDSON C DOUGLAS
IPC: H04J3/14
Filed: 1993-05-17
Granted: 1998-12-08
Abstract: A telecommunications system having 1:n group facility protection is disclosed.  Two-cross-connects are provided, each organized in a distributed fashion, and which have a group  of  member ports  bidirectionally  coupled  to  one another in corresponding fashion via a plurality of paths, such as of the DS-3 data frame type.  Each of the cross-connects also include a bidirectional protection port, coupled to the protection port of the other cross-connect by way of a protection path, also preferably of the DS-3 type;  the  protection  port  for  each  cross-connect  is assigned to the member port group, and is implemented to be managed by the same distributed interface processing unit as the protected member port group.   The cross-connects monitor their member input ports for received facility errors, such as signal failures or excessive failure rates, and request a third-stage bridge from its mate cross-connect in the event of such error. Upon receipt of a good signal at the protection input port, the requesting cross-connect  effects  a  first  stage  switch,  so  that  the previously failing facility is received over the protection path.   Communication of request and acknowledge signals over the protection path is preferably by way of the C-bit and X-bit channels, for DS-3 paths.  The switch preferably reverts to the normal condition responsive to the facility becoming valid for a timeout period at the original member port.
Patent CA-2100319-C (CA)
Inventor: DEANER MICHAEL J
IPC: B29C48/11
Filed: 1993-07-12
Granted: 2003-10-07
Abstract: A polymer and wood composite structural members can be manufactured by extruding and injection molding a composition comprising polyvinyl chloride, wood fiber and optionally a concentration of an intentionally added waste stream. Such structural members have strength, workability, fastener retention, resistance to rot and insect attack, and thermal properties sufficient to constitute an advanced composite wood replacement material.      The advanced structural member can be used as a component in construction of any structure requiring sized lumber or specifically shaped wood products. In such an application, the structural members can be extruded in the shape of commonly available lumber. The structural members of the invention can also be extruded in complex shapes adapted to the assembly of windows and doors used in both residential and commercial structures. The structural members have a modulus, a coefficient of thermal expansion, a coefficient of elasticity, a compressive strength and other related properties ideal for use as a replacement for either metal or wood, window or door structural components. The preferred structural member is manufactured from a polyvinyl chloride and wood fiber composite that optionally contains an intentionally recycled impurity component.      Such components comprise waste materials common in~the manufacture of wood doors and windows. We have found that the cooperation between the amount of polymer material, the amount of an oriented wood fiber, and control over water content results in the improved structural properties of the composite structural members of the invention.
Patent CA-2102575-C (CA)
Title: Low friction valve train
Inventor: RAO V DURGA NAGESWAR
IPC: F01L1/14
Filed: 1993-11-05
Granted: 1998-08-11
Abstract: A low friction valve train is provided for use with a high speed internal combustion engine,  The valve train includes a tappet formed of a lightweight metal preferably  aluminum or magnesium alloy.   The outer surface of said tappet is impregnated with a solid film lubricant to provide reduced friction during operation.          The valve train further includes a cam shaft having cams,  the  wear/bearing  surfaces  of  the  cams  are impregnated with a  solid film lubricant to further reduce friction during operation.
Patent CA-2102727-C (CA)
Title: Paper pallet
Inventor: LIM CHOW PAK
IPC: B65D19/00
Filed: 1993-11-09
Granted: 1998-01-20
Abstract: There is disclosed a paper pallet comprising a first sheet,  a second sheet and support means used to maintain the sheets in a parallel spaced relation.   The support means is part of the first sheet and second sheet formed by cutting, creasing, folding and securing tongues. The tongue of one sheet intersects at a 90 degree angle with the tongue of the outer sheet, and a flange is secured to a slot provided in one tongue to form a "slot in" locking means.  The strength of the present invention can be further increased by adding a reinforcement core to the inside of the hollow space within the support means, or alternatively, the reinforcement core may enclose tongues which are fastened together to form the support means.  The invention can be varied in dimension, height and numbers of the support means.
Patent CA-2112592-C (CA)
Inventor: MATSUDA SHIGEKI
IPC: C25D11/36
Filed: 1993-04-30
Granted: 2002-05-21
Abstract: The present invention is a method of forming a phosphate chemical treatment film which is efficient and allows a high-quality chemical film to be obtained, by which a substance to be treated is subjected to electrolytic treatment while removing the sludge, which consists of impurities other than the unavoidable impurities in the phosphate chemical treatment bath.      According to this method, an adequate phosphate chemical treatment film may be formed onto any type of metal material, to provide phosphate chemical treatment films having thicknesses not obtainable by the prior art.
Patent CA-2113161-C (CA)
Inventor: WILLIS CLYDE A
IPC: E21B19/15
Filed: 1992-07-13
Granted: 1998-10-06
Abstract: A lifting device (10, 100, 200) for down hole tubulars (T) used with an earth drilling machine (DM) having a boom (B) for moving a tubular (T) from a horizontal position at an intermediate level to a raised position aligned with a drilling axis (C), and a tubular holding device (H) for holding a tubular (T) horizontally at a lower level, beneath the intermediate level. The lifting device includes first and second spaced, parallel tracks (16, 112, 216) extending from the lower level to the upper level and first and second dolleys (18, 118, 218), each guided for movement along a respective track and configured to retain the tubular (T). The dolleys are moved along the tracks by an actuator (24, 123, 127, 237) which is connected to both of the dolleys by a mechanical linkage which includes tension members (30, 135, 247, 249). The mechanical linkage positively synchronizes movement of the dolleys along the tracks to maintain the tubular (T) horizontal as it is moved.
Patent CA-2115536-C (CA)
Title: Heterocyclically substituted phenyl-cyclohexane-carboxylic acid derivatives
Inventor: MULLER ULRICH E
IPC: A61K31/41
Filed: 1994-02-11
Granted: 2004-11-02
Abstract: Heterocyclically substituted phenyl-cyclohexane-carboxylic acid derivatives are prepared by reacting appropriate heterocyclic compounds with cyclohexanebenzyl halides. The compounds can be employed as active compounds in medicaments for the treatment of arterial hypertension and atherosclerosis. The compounds have the general formula (I)   wherein A, B, D, E, L and T are as defined in the description and claims.
Patent CA-2116160-C (CA)
Inventor: MUKAIDA SHINGO
IPC: A61L15/58
Filed: 1994-02-22
Granted: 2003-05-27
Abstract: The present invention relates to a water absorbent composition comprising 100 parts by weight of water absorbing polymer particles and 0.5 to 30 parts of a resin powder having heat adhesion property at 50-200°C. The present invention also relates to a water absorbing material and water absorbing products using the said water absorbing material comprising the water absorbing polymer particles, a resin having heat adhesion property at 50-200°C and fibrous material, wherein the water absorbing polymer particles are adhered to the fibrous material through the resin by heat treatment at temperature exceeding the temperature exhibits heat adhesion property of the resin.      The water absorbent composition of the present invention provides excellent adhesion to a fibrous material, while it maintains the water absorbency of the original water absorbing polymer, and is consequently useful as raw material for sanitary goods such as disposable diapers and sanitary napkins etc. The water absorbing material of the present invention has excellent water absorbency, absorbing speed and shape retention property after water absorption. Consequently, it is useful for water absorptive goods such as disposable diapers and sanitary napkins.
Patent CA-2116853-C (CA)
Inventor: HU HOPIN
IPC: B01D67/00
Filed: 1992-08-17
Granted: 2002-02-05
Abstract: Porous blended hydrophilic copolymer (polyethersulfone resin, poly-2-oxazoline resin, and polyvinylpyrrolidone resin) microporous membranes are provided which are useful for filtering macromolecules or particles from fluids. The invention also concerns a process for filtering matter from a fluid, employing the membranes.
Patent CA-2117238-C (CA)
Title: Digital supervisory audio tone detector
Inventor: BOYER BRIAN E
IPC: G06F11/00
Filed: 1994-03-08
Granted: 2000-09-26
Abstract: A detector for determining the validity of a received code, such as a Digital Supervisory Audio Tone (DSAT) code. A received DSAT code is serially shifted into a shift register (10) which outputs the received DSAT code in parallel format to a set of 24 exclusive-OR gates (12). Another shift register (11) receives a valid code, such as a valid DSAT code. The register (11) outputs the valid DSAT code, and right circular shifted (rotated) versions of the valid DSAT code, to the gates (12). The comparison signal from the gates (12) is provided to another register (13) and a counter (16) which together count the number of mismatches between the received DSAT code and the reference DSAT codes. The output of the counter (16) is provided to a comparator (17) which compares the number of mismatches against the allowable number of mismatches. The output of the comparator (17) is a validity signal (7) which indicates whether the received DSAT code matches any of the reference DSAT codes. Either the received code or the reference code may be used to provide the rotated codes.
Patent CA-2119827-C (CA)
Inventor: RENK CHRISTINE A
IPC: C08G18/08
Filed: 1994-03-24
Granted: 2004-08-10
Abstract: The present invention relates to two-component, aqueous polyurethane coating compositions which may be cured at ambient temperature and which contain I) ~a polyisocyanate mixture having an NCO content of 10 to~ 47% by weight and containing isocyanurate and allophanate groups in a molar ratio of monoisocyanurates to monoallophanates of 10:1 to 1:5, wherein the allophanate groups are formed from urethane groups which are based on the reaction product of an organic diisocyanate having (cyclo)aliphatically bound isocyanate groups and a monoalcohol containing at least 1 carbon atom and having a molecular weight of up to 500, and II) ~a water dispersible or water soluble polyol, wherein components I and II are present in an amount sufficient to provide an equivalent ratio of isocyanate groups to hydroxyl groups of 0.8:1 to 6:1.      The present invention is also directed to the coatings prepared from these coating compositions.
Patent CA-2125055-C (CA)
Title: Apparatus and method for correcting offset and gain drift present during communication of data
Inventor: GUSMANO DONALD J
IPC: G06T1/00
Filed: 1994-06-03
Granted: 1999-09-21
Abstract: The present invention is directed to a system and method for compensating for offset and gain drift in a fast scan direction during an image forming process. To achieve compensation, the present invention samples a plurality of permanently darkened pixels upon powering up image sensors and circuitry therefor and during a sub-scanning process of an image and feeds this information into an offset value generating circuit.      The offset generating circuit continually adjusts a pixel offset voltage aecording to a difference between sequential samples of the permanently darkened pixel, thereby compensating for fast scan offset drift. The present invention also samples a plurality of active pixels during a scanning of a calibration strip. From this scan, a gain corrective value is calculated.      The present invention then samples active pixels during a scanning of a platen background. In response to this sampling, the gain corrective value is continually adjusted according to a difference between sequential samples of the platen background, thereby compensating for fast scan gain drift. The present invention can also compensate and balance transfer functions for a plurality of eommunication channels in a multi-channel system by using the same target values and same reference signals for each channel.