baber/WOPTO huggingface dataset:
Patent CA-1266462-C (CA)
Title: Gravity blending apparatus and methods of gravity blending
Inventor: REVELT WILLIAM F
IPC: B01F5/24
Filed: 1986-08-20
Granted: 1990-03-06
Abstract: ABSTRACT OF DISCLOSURE A gravity blending apparatus and methods of gravity blending involving an improved venting arrangement, by means of which an increase in the "thru-put" flow rate of a gravity blender apparatus is provided by venting the underside of an inverted cone within a collecting chamber to one or more low pressure zones. Advantageously, such venting may proceed progressively from the underside of an inverted cone within the collecting chamber to a low pressure zone within the upper portion of the collecting chamber, with venting continuing by way of auxiliary or further venting conduit means to the underside of a material distributing, inverted cone in the lower portion of the base of the main bin of the gravity blender. A gap between the terminus of a central, lower most outlet of the main bin and the apex of the inverted cone within the collecting chamber may be selectively ajusted so as to regulate the relative flow rates of the central, lower-most outlet of the main bin and the peripheral down-comers contained within the main bin which are located circumferentially outwardly of the central outlet and draw material from above the main outlet within the main bin. Such adjusting is able to be effected externally of the main bin and collecting chamber so as to avoid the necessity to obtain access to the interior of these components.
Patent CA-1280135-C (CA)
Title: Motor control circuit for a simulated weight stack
Inventor: KEANE MARTIN A
IPC: H02P7/288
Filed: 1986-11-20
Granted: 1991-02-12
Abstract: Abstract A control for a DC motor coupled to a user inter-face to provide a counterforce which simulates a weight stack in an exercise machine.  The control includes a position transducer coupled to the motor to provide a signal proportional to the displacement of the user interface. A circuit is provided to generate a control voltage which follows the displacement signal when it is less than a maximum torque signal, the control voltage following the maximum torque signal when it is less than the displacement signal.  The control voltage is used to soft start the motor such that the counterforce provided by the motor simulates a weight stack supported by a spring over small displacements of the user interface.
Patent CA-1286204-C (CA)
Title: Process for manufacturing a high strength woven fabric from optimally drawn yarn
Inventor: BROWN DONALD L
IPC: D02J1/22
Filed: 1986-11-26
Granted: 1991-07-16
Abstract: Abstract of the Disclosure PROCESS FOR MANUFACTURING A HIGH STRENGTH  WOVEN FABRIC FROM OPTIMALLY DRAWN YARN     The present invention reveals a process for manufacturing a high strength woven fabric that is particularly suitable for use as a tire reinforcement which comprises:    (a) drawing a polymeric yarn to a draw ratio that is 70% to 99% of the draw ratio that would fully draw the yarn to produce an optimally drawn yarn;    (b) twisting at least two of said optimally drawn polymeric yarns into a cord;    (c) weaving a plurality of said cords into a greige woven fabric; and (d) stretching and relaxing said greige woven fabric under conditions sufficient to reduce the denier of the cords in said fabric by 1% to 10%.
Patent CA-1290593-C (CA)
Title: Mounting and isolation system for tuning fork temperature sensor
Inventor: PAROS JEROME M
IPC: G01K7/32
Filed: 1986-12-24
Granted: 1991-10-15
Abstract: MOUNTING AND ISOLATION SYSTEM FOR  TUNING FORK TEMPERATURE SENSOR                             Abstract Prior mounting systems for tuning fork temperature sensors have resulted in unpredictable activity dips within the sensor operating ranges. Thisproblem is eliminated by the mounting and isolation system (32) of the present invention that is adapted to mount temperature sensitive tuning fork (20) to a support structure. The mounting system comprises a mounting member (34) adapted for rigid connection to the support structure, and support means (36) connecting the tuning fork base to the mounting member such that the tuning fork is supported solely by the support means. The support means comprises a low pass mechanical filter that transmits only vibration frequencies that are less than the operating range of frequencies of the tuning fork.
Patent CA-1283755-C (CA)
Title: Acetabular cup assembly with selective bearing face orientation
Inventor: FORTE MARK R
IPC: A61F2/32
Filed: 1987-01-09
Granted: 1991-05-07
Abstract: Abstract of the Disclosure An acetabular cup assembly includes a metal shell component and a plastic bearing insert capable of assembly interoperatively, the metal shell component first being secured in position within an acetabulum and then the plastic bearing insert being receivable within the shell component, first at a preliminary axial position for ascertainment of the circumferential position of the bearing insert and the orientation of the bearing face of the bearing insert relative to the shell component and then at a fully-seated axial position wherein the bearing insert is permanently captured in the shell component, the bearing insert being readily withdrawn from the preliminary axial position for circumferential repositioning to attain appropriate orientation of the bearing face prior to capturing the bearing insert within the shell component.
Patent CA-1287840-C (CA)
Inventor: BARBERO MARGHERITA
IPC: C07C309/81
Filed: 1987-01-21
Granted: 1991-08-20
Abstract: ABSTRACT OF THE DISCLOSURE Process for preparing alkyl-sulphonyl chlorides and arylalkyl-sul-phonyl chlorides of formula RSO2C1 (R being alkyl or arylalkyl), starting from S,S-dialkyl or diarylalkyl dithiocarbonates RS-CO-SR, consisting in reacting the starting compound with gaseous chlorine in the presence of water, at 0° - +10°C.
Patent CA-1290082-C (CA)
Title: Ecran d'affichage a matrice active a resistance de drain et procedes de fabrication de cet ecran
Inventor: MAURICE FRANCOIS
IPC: G02F1/1343
Filed: 1987-01-26
Granted: 1991-10-01
Abstract: Ecran d'affichage à matrice active et procédés de fabrication. Chaque pave est associé à une bande conductrice reliant le drain du transistor de commande à la colonne d'adressage. La ligne d'adressage est plus étroite au croisement d'une colonne que dans la zone du transistor et l'isolant de croisement peut être différent de l'isolant de grille. Application à l'affichage.
Patent CA-1291741-C (CA)
Title: Valve with compressible valve stem and valve body seals
Inventor: NIMBERGER SPENCER M
IPC: F16K41/04
Filed: 1987-02-25
Granted: 1991-11-05
Abstract: TITLE: VALVE WITH COMPRESSIBLE VALVE        STEM AND VALVE BODY SEALS                   ABSTRACT OF THE DISCLOSURE           A valve is provided with improved bonnet-stem and bonnet-valve body seals.  Both non-metallic seals may be simultaneously compressed by threading the bonnet to the valve body, with a valve stem seal sandwiched between the bonnet and an axially movable retainer in engagement with the valve body.          A jam nut threaded to the exterior of the bonnet may be periodically loosened, and the bonnet further threaded to the valve body to re-compress both seals and stop leakage from the valve.  The concepts of the present invention are well adapted to providing a low cost valve suitable for handling corrosive fluids.
Patent CA-1299057-C (CA)
Title: Umbrella with shirred edge cover
Inventor: OKUDA TOSHIO
IPC: A45B11/00
Filed: 1987-05-19
Granted: 1992-04-21
Abstract: UMBRELLA WITH SHIRRED EDGE COVER     Abstract of the Disclosure An  umbrella  in  which  at  least  a  portion  of  the cover's peripheral edge is shirred.  This shirred edge portion is stretched to a greater length when the umbrella is open and contracted to a lesser length when the umbrella is collapsed, thereby providing  a  taut  appearance  to  the  cover when  the umbrella  is  open  in  the  dome-shaped  configuration.   This invention is particularly useful when the cover is fabricated from a single piece of material, i.e., when the cover is not comprised of separate gores stitched together;
Patent CA-1313854-C (CA)
Title: Pack comprising a slide and shell
Inventor: FOCKE HEINZ
IPC: B65D5/38
Filed: 1987-06-05
Granted: 1993-02-23
Abstract: Pack comprising a slide and a shell Abstract in conjunction with Figure 2 A pack consisting of a shell (10) and a slide (11) and intended for receiving cigarettes (cigarette blocks 12, 13) has an octagonal cross-section of the shell (10), with longitudinal edges (27) which each con-sist of two individual edges (28 and 29) joined to one another by means of a strip of material (30) going across the angle.  As a result, side tabs (16, 17) of the slide (11) have less width, and there is a corresponding saving of material.
Patent CA-1341490-C (CA)
Title: Dna functional group and plasmid coding for hirudine, transformed yeast, preparation process for hirudine, resulting hirudine, and its pharmaceutical use
Inventor: LEMOINE YVES
IPC: A61P7/02
Filed: 1987-07-09
Granted: 2005-08-30
Abstract: Functional DNA block permitting the preparation of hirudine from yeast, characterised in that it comprises at least the sequence:  -Str-Lex-Scl-gene H  gene H being the hirudine gene or one of its variants, Str is a DNA sequence containing the signals ensuring the transcription of gene H by the yeast, Lex is a leader sequence needed to obtain the excretion of the product of the gene, Scl is a DNA sequence coding for the site of cleavage by the proteinase ycsF, a cleavage site which is unique and situated in the precursor of hirudine immediately ahead of gene H. The invention relates more particularly to a functional DNA block in which gene H codes for HV1.
Patent CA-1320537-C (CA)
Title: Rate responsive cardiac pacemaker
Inventor: ALT ECKHARD
IPC: A61N1/365
Filed: 1987-09-11
Granted: 1993-07-20
Abstract: ABSTRACT OF THE DISCLOSURE             RATE RESPONSIVE CARDIAC PACEMAKER     A rate responsive cardiac pacemaker for implanta-tion in a patent, includes an activity sensor having a resp-onse characteristic limited to the frequency range below 4 Hz for detecting movement of the patient arising from physical exercise and generating an electrical signal representative thereof while discriminating against movement arising from random influences. Means is provided for generating pulses at a controllably variable rate to stimulate the patient's heart at any of a plurality of selectable rates. The pacemaker also includes means responsive to the said electrical signal for adjusting the rate of the pulse generating means relative to a base rate according to whether the patient is undergoing exercise or is at rest.
Patent CA-1281686-C (CA)
Title: Idler wheel assemblies
Inventor: MC CORMICK EDWARD J
IPC: B66F9/075
Filed: 1987-09-30
Granted: 1991-03-19
Abstract: IDLER WHEEL ASSEMBLIES    Abstract  of  the  Disclosure:   A vertically-sprung idler wheel of a lift truck is  journalled near  the outer  end of an arm pivotally mounted for limited rotation about a substantial-ly horizontal longitudinal axis, and spring  means are provided to oppose rotation of the arm.  The idler wheel may be linkage-steered or instead comprise a self-steered  caster wheel.   The assembly requires less space.
Patent CA-1329736-C (CA)
Inventor: HALUSKA LOREN A
IPC: H01L21/56
Filed: 1987-10-19
Granted: 1994-05-24
Abstract: MULTILAYER CERAMIC COATINGS FROM METAL OXIDES FOR          PROTECTION OF ELECTRONIC DEVICES                             ABSTRACT           This invention relates to materials produced by diluting in a solvent a preceramic mixture of a hydrogen silsesquioxane resin and a metal oxide precursor selected from the group consisting of an aluminum alkoxide, a titanium alkoxide, and a zirconium alkoxide.  The preceramic mixture solvent solution is applied to a substrate and ceramified by heating.  One or more ceramic coatings containing silicon carbon, silicon nitrogen, or silicon carbon nitrogen can be applied over the ceramified SiO2/metal oxide coating.  A CVD or PECVD top coating can be applied for further protection. The invention is particularly useful for coating electronic devices.
Patent CA-1289243-C (CA)
Title: Dynamic ram cell having shared trench storage capacitor with sidewall-defined bridge contacts and gate electrodes
Inventor: KENNEY DONALD M
IPC: H01L21/822
Filed: 1987-10-19
Granted: 1991-09-17
Abstract: ABSTRACT       A one-device shared trench memory cell, in which the polysilicon and dielectric layers within the trench extend above the surface of the trench to form a mandrel structure.  A layer of polysilicon is conform-ably deposited on the mandrel structure.  Dopant ions are diffused from the doped polysilicon within the trench to the conformal polysilicon layer, and from the conformal polysilicon layer, and from the conformal polysilicon layer to a portion of the substrate dis-posed thereunder.  The conformal polysilicon is etched in a solvent that preferentially attacks undoped polysilicon, to provide and is a bridge contact that is self-aligned to the polysilicon within the trench and to the diffusion region.  A plurality of FETs formed on either side of the trench, by use of a sidewall-defined gate electrode to maximize density.  The cell produces a "poly-to-poly" and "poly-to-substrate" storage capacitor combination that maximizes charge storage capability.
Patent CA-1281419-C (CA)
Title: Prepayment metering system using encoded purchase cards
Inventor: SLOAN JOSEPH W
IPC: G01D4/00
Filed: 1987-12-04
Granted: 1991-03-12
Abstract: Abstract of the Disclosure A prepayment utility metering method and apparatus is described which uses encoded mag-stripe cards to transfer purchase information from the utility billing office to the customer's premises.  The mag-stripe cards are read at the customer's premises by a microprocessor-controlled utility metering and control device which meters the utilities according to the amount purchased at the utility billing office.  The value information encoded on the mag-stripe cards is comprised of the amount of the purchase coded in terms of number of shaft revolutions of the metering disk, a rate schedule for metering the value of the utilities consumed, and a special sequential password containing an encrypted combination of the consumer's account number, the consumer's site identification, and the sequence number of the current purchase.  This encoding scheme for prepayment of utilities provides an effective and economical method of distributing utili-ties that prevents fraud and tampering.         The present invention also includes a method and apparatus for providing an emergency credit to uti-lity consumers when the prepurchased amount is exhausted.  An emergency mag-stripe card is used to credit the user's account with a purchased amount of utilities adequate to tide the consumer over until the billing office opens on the next business day.  The emergency mag-stripe card cannot be used more than once, and the credit amount in the meter must be reple-nished by a new purchase of utilties before the emergency card can be used again.
Patent CA-1330168-C (CA)
Title: Solder composition
Inventor: YAGI HIROSHI
IPC: B23K35/34
Filed: 1987-12-17
Granted: 1994-06-14
Abstract: SOLDER COMPOSITION                   ABSTRACT OF THE DISCLOSURE    A solder composition having a low melting point and a high remelting point sufficient to permit electronic circuit elements to be fixed on a printed circuit board at a low soldering temperature to prevent thermal damage of the electronic circuit elements during the mounting and prevent the elements from droppong off from the board due to any heat applied thereto after soldering.  The solder composition includes a low melting solder powder containing a metal additive for melting-point depression, and a reactive alloy powder.  The low melting solder powder is melted to form a soldering layer which serves to mount electronic circuit elements on a printed circuit board at a relatively low soldering temperature.  At the soldering temperature, the metal additive is reacted with the reactive alloy powder to cause the soldering layer to have a remelting temperature highter than a melting point of the solder composition or solder powder.
Patent CA-1299723-C (CA)
Title: Electric safety supply apparatus and connector device combination
Inventor: DUFRESNE JACQUES
IPC: H02H1/04
Filed: 1987-12-29
Granted: 1992-04-28
Abstract: ABSTRACT OF THE DISCLOSURE          In an electrical appliance having an electrically conducting housing, defective grounding of the housing may result in a dangerous situation for the user.  To prevent such a dangerous situation, the appliance, also having an internal, load circuit, is provided with a safety connector device, which connector device comprises an electric plug having two power contacts through which the load circuit is energized, and two auxiliary contacts.  The two latter, auxiliary contacts are respectively connected to two sepa-rate points of the housing so that they are interconnected together through an interconnecting circuit including the electrically conducting housing of the appliance.  One of the two auxiliary contacts is connectable to a ground for grounding the housing whereby a disconnection of the ground from the housing can be detected by sensing a discontinuity in the interconnecting circuit.
Patent CA-1283195-C (CA)
Title: Frequency-division multiplex broadband multimedia network
Inventor: KOBAYASHI HIROSHI
IPC: H04M3/00
Filed: 1988-01-11
Granted: 1991-04-16
Abstract: Abstract of the Disclosure In the frequency-division multiplex broadband multimedia network of this invention, a plurality of transmission paths are laid out in a matrix, with transmission path switches being arranged at respective lattice points.  Each transmission path switch monitors a transmission path current.  When a transmission path switch detects that a current has been cut off, a portion where a communication trouble is caused is disconnected from the network, and the switch connects a portion at the downstream side of this transmission path switch to another adjacent transmission path.
Patent CA-1305339-C (CA)
Title: Limited slip differential
Inventor: DEWALD GREGORY T
IPC: F16H48/22
Filed: 1988-01-14
Granted: 1992-07-21
Abstract: LIMITED SLIP DIFFERENTIAL            ABSTRACT OF THE DISCLOSURE   A limited slip differential for a ground vehicle having at least one friction clutch located between the differential case and a side gear, with dual means which cooperate for urging the clutch into engagement and thus restricting the differential action.  The first means for urging the clutch into engagement comprises an axial force exerted on the side gear by a bevel gear on the crossmember of the differential which is in mesh with the side gear.  The second means comprises a flat spring captured between the side gear and a pressure plate which abuts the crossmember.  The flat spring exerts force between the crossmember and the side gear to augment the axial force of the bevel gears in urging the friction clutch into engagement.
Patent CA-1309383-C (CA)
Title: Self draining container
Inventor: ROBINSON GERALD R
IPC: B65D23/06
Filed: 1988-03-02
Granted: 1992-10-27
Abstract: ABSTRACT OF THE DISCLOSURE A self draining container is disclosed. The container has a body and an upper integral pouring spout. The upper part of the container body and the spout define a generally funnel shaped section. A separable ring member is attached to and surrounds the pouring spout. The ring member and the pouring spout define a flow back chamber. An opening extends between the flow back chamber and the container body. A separable cap is removably mounted over the pouring spout.
Patent CA-1299807-C (CA)
Title: Process for producing olefin polymers and catalyst used therein
Inventor: SASAKI TOSHIO
IPC: C08F4/50
Filed: 1988-03-14
Granted: 1992-04-28
Abstract: ABSTRACT OF THE DISCLOSURE         A solid catalyst component for .alpha.-olefin polymerization containing as catalyst components at least titanium, magnesium and chlorine which are impregnated into an organic porous polymer carrier having a mean particle diameter of 5 to 1,000 µm and a pore volume of 0.1 ml/g or above at a pore radius of 100 to 5,000 .ANG., a catalyst system comprising at least said solid catalyst component (A) and an organoaluminum compound (B), as well as a process for producing .alpha.-olefin polymers using said catalyst system.
Patent CA-1302398-C (CA)
Title: High shear mixing
Inventor: ADAMS MICHAEL J
IPC: B01F7/08
Filed: 1988-05-27
Granted: 1992-06-02
Abstract: ABSTRACT          A process of mixing material particularly suitable for  the mixing  of  ingredients  to  form  a  built  non-soap detergent bar.   Material to be mixed is passed through a housing  closely  fitting  a  plurality  of  circular  mixing elements   arranged   in   interengaging   and   overlapping relationship on two driven parallel rotor shafts.  Each of the  mixing  elements  has  openings  therethrough  and  the material passes  through  the  housing  in  the  longitudinal direction of the shafts with the majority of the material passing  through  the  openings.     The  openings  comprise apertures within which a slug of material is formed by the passage of the material therethrough, and at least part of the slug is not affected by the shear conditions existing at the faces of the elements.
Patent CA-1318688-C (CA)
Inventor: INBASEKARAN MUTHIAH N
IPC: C07C315/04
Filed: 1988-05-31
Granted: 1993-06-01
Abstract: ABSTRACT       A process for preparing an aromatic propargyl ether, preferably bispropargyl ether, from hydroxyaromatic compounds comprising vigorously stirring a propargyl halide, preferably propargyl chloride, with a hydroxyaromatic compound, such as bisphenol A, in an aqueous sodium hydroxide solution at a temperature of from 0°C to 100°C, in the presence of a phase transfer catalyst such as tetrabutylammonium bromide.  The mixture id then filtered to recover a solid product.  That product is washed with water and propanol.  This process provides a product having greater than 95 percent purity in yields ranging from 85 to 97 percent of theoretical.
Patent CA-1278973-C (CA)
Title: Pressure relief device with conical reverse buckling disc
Inventor: WALKER WILLIAM J
IPC: F16K17/16
Filed: 1988-06-27
Granted: 1991-01-15
Abstract: Abstract A safety pressure relief device having a rupture disc with a conical central portion.  The relief device comprises inlet and outlet support members wherein the rupture disc is positioned therebetween.   The rupture disc has an annular outer flange portion with a conical central portion disposed radially inwardly therefrom.  When positioned in the relief device, a tip of the conical portion is directed toward the inlet support member.   Scoring is provided on the conical portion for defining at least one line of weakness thereon.          In  one  embodiment,  a  plurality  of  linear  scores  extend radially on the conical portion and are spaced from the tip and base thereof.  In another embodiment, the scoring inclu-des a curvilinear score forming an incomplete circle adja-cent  the  base,  either  spaced  therefrom  or  contiguous therewith.    With  all  embodiments,  the  rupture  disc  is adapted for rupturing at relatively low pressures without fragmentation.