baber/WOPTO huggingface dataset:
Patent NO-170808-C (NO)
Inventor: MEUNIER PAUL J
IPC: C08L61/06
Filed: 1987-04-10
Abstract: The invention relates to the preparation of closed cell phenolic resin foams produced from compositions of phenolaldehyde resole resins, and the foam products thus prepared. More particularly the present invention relates to the preparation of phenolic resin foams by a method employing a novel modified phenolic foam catalyst. The invention also relates to these modified phenolic foam catalysts which includes an aromatic sulphonic acid and resorcinol.
Patent NO-176387-C (NO)
Inventor: CASTELLANA FRANK
IPC: A61L28/00
Filed: 1990-08-15
Abstract: A bandage including a superabsorbent pad (14) covered by a porous cover pad (16) placed on a thin, flexible hydrocolloid adhesive layer (12) leaving a portion of the adhesive layer around the pads as an adhesive border is disclosed. One side of the adhesive layer (12) is laminated to a polymeric backing or non-woven fabric layer (20) and a protective cover layer is applied over the pads and border portion. The protective cover layer (18) may be silicone coated release paper and the bandage may be subjected to a vacuum thus forming the adhesive layer (12) to the pads resulting in the border portion being substantially coplanar with the exposed surface of the cover pad (16) overlaying the superabsorbent pad (14).
Patent CA-2002918-C (CA)
Inventor: WILDEMEERSCH DIRK
IPC: A61F6/14
Filed: 1989-11-14
Granted: 1994-09-20
Abstract: THE IMPROVED INTRA-UTERINE DEVICE                          ABSTRACT         The object of the invention is an improved intra-uterine device.  This device is a deformable element in the form  of a plastic fibre releasing an active substance into the uterine cavity, the said fibre consisting of several strands or loops placed said by side and held together in one assembly zone of reduced dimensions in relation to the length of the said strands or loops, and of an element for attaching it in the uterine cavity, the said element being in the form of filament carrying a means for hooking to the tissue of the uterus, suitable for insertion with the aid of a needle, and integral with the said fibre.  The device provides for release of active substances into a relatively large area relative to the mass of the device.
Patent CA-2003092-C (CA)
Inventor: MATSUURA MITSUYUKI
IPC: C08F4/658
Filed: 1989-11-16
Granted: 1998-08-25
Abstract: Ziegler  polymerization  of  .alpha.-olefins  is  disclosed which is characterized by a solid catalyst component used in  the  Ziegler-type  catalyst.    The  solid  catalyst component, Component (A), comprises Component (i) which is a solid catalyst component for a Ziegler-type catalyst comprising Ti, Mg and a halogen; Component (ii) a silicon compound of a formula:   R1R2 3-nSi(OR3)n wherein  R1  -  R3  are  each  hydrocarbyl  group characterized by R1 which has a branched hydrocarbyl group; Component  (iii)  a  halogen  compound  of  W  or  Mo;  and Component  (iv)  an organometal  compound of  a metal  of Groups I to IV of the Periodic Table.
Patent CA-2005979-C (CA)
Title: System for internetwork communication between local area networks
Inventor: OHBA TOSHIMITSU
IPC: H04L12/46
Filed: 1989-12-19
Granted: 1995-11-07
Abstract: An internetwork communication system provides communication from a first local area network to a second, ring-type, local area network via a bridge.  The bridge receives a frame from the first local area network and transmits a dummy frame followed by an internetwork transfer frame to the second local area network.  The internetwork transfer frame defines a node of the second local area network as a distant apparatus (receiver) and a node of the first local area network as a self apparatus (sender).  The bridge later receives the dummy frame from the second local area network, after transmission of the dummy frame around the ring, and deletes the dummy frame and the internetwork transfer frame received following the dummy frame so that the communication in the second local area network does not circulate indefinitely around the ring.  As an alternative to using a dummy frame, the bridge can receive the internetwork transfer frame, after circulation around the second local area network, and compare the distant apparatus of the received internetwork transfer frame with a stored distant apparatus address.  When the received distant apparatus address matches the stored distant apparatus address, the bridge deletes the internetwork transfer frame from the second local area network.
Patent CA-2007520-C (CA)
Inventor: NAKASHIBA AKIO
IPC: F16L47/28
Filed: 1990-01-10
Granted: 2000-08-29
Abstract: The improved electrofusion joint and header for supplying hot water that perform satisfactorily at elevated temperatures as evidenced by high heat resistance, that exhibit good sealing property and that can be handled efficiently in mounting and various other operations have a crosslinked thermoplastic resin layer and at least one joining portion which comprises a non-crosslinked thermoplastic resin layer that is formed a as an integral part of said crosslinked thermoplastic resin layer in the area where it contacts a tubular member to be joined, and a heating electric wire provided either within or on the outer or inner surface of said non-crosslinked thermoplastic resin layer. Such electrofusion joint and header are applicable to any part of a piping system for supplying hot water and they will withstand use for a prolonged period.
Patent CA-2008617-C (CA)
Title: Two stage polymerization of vinyl acetate emulsion copolymers containing incompatible monomers
Inventor: GOLDSTEIN JOEL E
IPC: D04H1/64
Filed: 1990-01-25
Granted: 1994-11-15
Abstract: A two stage polymerization process for preparing a vinyl acetate emulsion copolymer containing a monomer which is normally incompatible with vinyl acetate.  In the first stage the vinyl acetate, desirably ethylene and, optionally, an active crosslinking comonomer and/or latent crosslinking comonomer are free radical polymerized in the presence of a stabilizing system to yield a first stage polymer emulsion.  When the free vinyl acetate monomer content of the first stage emulsion is less than about 5%, the second stage polymerization begins by adding the incom-patible monomer.  Preferably, there is no cessation of the addition of the free radical source during the transition from the first stage to the second stage polymerization.  No additional stabilizing system is added to the reaction in the second stage.     Vinyl acetate/ethylene/incompatible comonomer/latent crosslinking comonomer copolymers prepared by the two stage polymerization process are suitably used as binders for making nonwoven products.
Patent CA-2009237-C (CA)
Title: Integrated communications system for hdlc variable-length data packets and fixed-length voice/video packets
Inventor: TSUZUKI KAZUO
IPC: H04N21/238
Filed: 1990-02-02
Granted: 1994-07-26
Abstract: ABSTRACT OF THE DISCLOSURE             In an integrated communications system, HDLC variable-length packets and non-HDLC fixed-length packets are decomposed into cells and a cell identifier is generated for each of the cells for identifying its type.  A frame sync code is transmitted from one end of a transmission channel, and the cell identifier and each of the cells are assembled into a field and a plurality of such fields are assembled into a frame for transmission. The frame sync code is detected at the other end of the transmission channel as a timing reference and the frame is deassembled into fields in response to the timing reference and each field is deassembled into a cell identifier and a cell. According to each deassembled cell identifier, the cells of each field are composed into the original HDLC variable-length packet or non-HDLC fixed-length packet.
Patent CA-2010623-C (CA)
Title: Toner image transferring device used in electrophotographic field
Inventor: KIMURA MASATOSHI
IPC: G03G15/16
Filed: 1990-02-21
Granted: 1995-01-24
Abstract: A toner image transferring device is applied to, for example, an electrophotographic printer for electrostatically transferring a charged toner image from a photosensitive drum to a sheet or paper, and comprises a transfer charger disposed near the drum to form a clearance therebetween for feeding an electric charge to the sheet or paper through which the sheet or paper is passed, an electric source for supplying an electric energy to the transfer charger to give the sheet or paper an electric charge having a polarity opposite to that of the charge of the toner image, and a controller for controlling the electric energy output from the electric source the transfer charger so that a leading edge of the sheet or paper can be prevented from being excessively charged.
Patent CA-2012814-C (CA)
Inventor: ALLEN GARY ROBERT
IPC: H05B41/24
Filed: 1990-03-22
Granted: 2000-05-23
Abstract: A circuit arrangement and a method of operating a highly desirable discharge lamp for automotive applications are disclosed. The discharge lamp contains a high xenon pressure along with a fill of mercury and a halide typically used for metal halide lamps. The high xenon pressure allows the xenon-metal halide lamp to obtain instantaneous light at a high intensity level which is particularly suited for automotive applications. The circuit related to the present invention provides for acoustic operation of the lamp which substantially eliminates known disadvantages of the high pressure xenon lamp of (1) severe arc bowing of such lamps having electrode spacing greater than two (2) millimeters; (2) increased hot-spot temperatures of such lamps; (3) decreased cold-spot temperatures of said lamps and (4) reduced lamp efficiency and life respectively due to decreased cold spots and increased hot-spot temperatures. The circuit in a preferred embodiment incorporates frequency modulation to broaden the desired operational frequency band of the circuit along with straightening the arc between electrodes of the high-pressure xenon-metal halide lamp.
Patent CA-2017622-C (CA)
Title: Ceramic welding process and powder mixture for use in same
Inventor: ZVOSEC CHARLES MICHAEL
IPC: C04B35/04
Filed: 1990-05-28
Granted: 2001-07-17
Abstract: In ceramic welding processes, oxidising gas and a mixture of refractory and fuel powders are projected against a surface and the fuel is burnt to generate sufficient heat that the refractory powder becomes at least partially melted or softened and a cohesive refractory mass is progressively built up against that surface. In order to reduce any tendency for the weld mass to include a low-grade refractory phase and thus promote the refractoriness of that weld mass, the fuel powder is present in a proportion of not more than 15% by weight of the total mixture and comprises at least two metals selected from aluminium, magnesium, chromium and zirconium, in that at least the major part by weight of the refractory powder consists of one or more of magnesia, alumina and chromic oxide, and in that the molar proportions of silica and calcium oxide present in the refractory powder (if any) satisfy the following expression: [SiO2] % ~ 0.2 + [CaO] %.      The elements of the fuel may be present in the form of an alloy.
Patent CA-2017784-C (CA)
Title: Apparatus for the dewatering of a web of cellulosic matter or a web of material for the pasteboard or cardboard
Inventor: STUMMER GISELHER
IPC: D21F3/04
Filed: 1990-05-30
Granted: 1995-02-21
Abstract: The  invention  relates  to  apparatus  for  the  dewatering   of  a  web  of cellulosic  matter  or  a  web  of  material  for  the  pasteboard  or  carboard production, having endless  screen belts or the like  circulating in opposite directions   between which the   web is made to pass for dewatering, the web being made to pass  through at least one  first dewatering zone  with at least two screen belts  or the like and thereupon to at least one further dewatering zone,  in particular a compression zone, with at least two screen belts. The invention is mainly characterized in that the  web is made to pass at least largely  unsupported  from  at  least    one  dewatering  zone  serving  as  a pre-dewatering zone  and  in particular formed as a double screen belt press to at least one further dewatering zone, in particular to a compression zone in  particular  formed  as  a  double  screen  belt  press,  preferably  as  a high-pressure press, one or a plurality of heating means, in particular means for  applying  a  heating  medium,  conveniently    one  or  a  plurality  of steam-blowing  box(es),  being    provided  behind  the    at  least  one  first dewatering zone serving for pre-dewatering  on the web or on the path of the web, in particular above it, one or a plurality of  suction site(s), suction box(es)  or/and   heating means,  in particular means   for applying a heating medium,  conveniently  (a)  suction box(es),  being provided   opposite to said steam-blowing box(es) on the other side,   in particular underneath, the web or the path of the web, heating means and suction sites  conveniently being disposed  above  and  underneath  the web   opposite to one another   and thus forming pairs.
Patent CA-2021123-C (CA)
Title: Height adjustable plant hanging device
Inventor: GAUBE GUY
IPC: F21V21/18
Filed: 1990-07-13
Granted: 1994-05-03
Abstract: ABSTRACT         A height adjustable device for suspending a planter  comprises  a  locking  member  adapted to be mounted above the planter,   a handle member and a cable attached at a first end thereof to the planter. The cable passes through the locking member and is wound around a reel biasedly mounted in the handle member with a second end of the cable being attached to the reel.    The cable is partly wound around the reel.    A disengageable brake is provided for the reel.   The locking member comprises a pair of fixed wheels  which  guide  the  cable  therethrough.     The locking  member  further comprises  a  locking  arm pivotally mounted therein and comprising a series of teeth.  The locking arm is biased towards a first one of  the  wheels,   whereby the cable can be secured between the locking arm and the first wheel.  Tension provided in the cable by the handle member forces the locking arm away from the cable thereby releasing the same and allowing free movement thereof through the locking member and thus permitting the planter to be raised and lowered.   To secure the cable between the teeth of  the  locking arm and the first wheel, a sudden  slack  is  provided in  the cable  using  the handle member in order to reduce the forces exerted by the cable on the locking arm in such a way that the  locking  arm  is  urged  towards  the  wheel  to imprison the cable therebetween.   The disengageable brake allows the handle member to be positioned at various  distances  from  the  locking  member  by counterbalancing  the  forces  of  the  biased  reel provided in the handle member.
Patent CA-2024764-C (CA)
Title: Flush valve refill ring
Inventor: WHITESIDE JOHN F
IPC: F16K31/385
Filed: 1990-09-06
Granted: 1999-01-19
Abstract: A refill ring for use in a diaphragm-type flush valve is mounted upon the guide member of the diaphragm assembly.          The refill ring has an outer diameter approximating the inner diameter of the flush valve passage adjacent the diaphragm seat.          The refill ring has a plurality of recesses formed about its periphery whereby closure of the diaphragm assembly upon its flush valve seat moves the refill ring within the flush valve passage, the exterior of the refill ring being in contact with the interior of the passage such that the flow of water past the refill ring is limited to the area of the refill ring peripheral recesses.
Patent CA-2026852-C (CA)
Title: Fluid dam and pressure tester apparatus and method of use
Inventor: MALACEK EDWARD L
IPC: G01M3/32
Filed: 1990-10-03
Granted: 1997-03-18
Abstract: An  apparatus  connectable  to  fluid  containing operating systems which creates a vacuum effect upon the fluid  in  the  operating  system  during  repairs  and maintenance.  The apparatus also permits pressure testing of the repairs and maintenance to the operating system without removal of the apparatus therefrom.
Patent CA-2033498-C (CA)
Title: Wheel/tire inflator
Inventor: KINNICK JOHN F
IPC: B60C25/05
Filed: 1991-01-02
Granted: 1994-01-11
Abstract: WHEEL/TIRE INFLATOR            Abstract of the Disclosure An improved inflator for use in automated wheel/tire assembly  lines  is  disclosed  herein.   The  improved  inflator incorporates temperature sensors to sense both the temperature of the compressed air used to inflate the tire and the ambient air temperature in response to which control means will adjust a base  reference  inflation  pressure  to  compensate  for  these variables.  A pressure sensor is also provided which serves to provide feed back information as to the actual pressure to which the tire is inflated.
Patent CA-2034716-C (CA)
Title: Oleaginous compositions containing novel ethylene alpha-olefin polymer viscosity index improver additive
Inventor: STRUGLINSKI MARK JOSEPH
IPC: C10M143/02
Filed: 1991-01-22
Granted: 2001-12-25
Abstract: The present invention is directed to a lubricating oil composition exhibiting improved viscosity index comprising lubricating oil and a viscosity improving effective amount of ethylene alpha-olefin polymer comprising monomer units derived from ethylene and at least one alpha-olefin represented by the formula H2C = CHR1 wherein R1 is an alkyl group of from 1 to l8 carbon atoms, and wherein said polymer has a number average molecular weight of from above 20,000 to about 500,000, and an average of at least about 30% of the polymer chains contain terminal ethylidene unsaturation.
Patent CA-2038700-C (CA)
Inventor: MORAN THOMAS F JR
IPC: B29C31/00
Filed: 1991-03-20
Granted: 1994-05-17
Abstract: Abstract of the Disclosure An apparatus engages pre-cut lengths of heated thermoplastic pipe against a pair of eccentric wiper arms bending the pipes into elbows.  The eccentric wiper arms have an eccentric portion and a constant radius portion.  A bending form has an arcuate die adapted to hold a pre-cut length of pipe.  Four such bending forms are radially connected to a rotation shaft which is journalled at each end to a support frame.  A continuous supply of pre-cut lengths of pipe are transported through a heating chamber by a set of endless chains.  Each pipe is then transferred to a bending form which is rotated by the shaft so that the cold end portions of each pipe engages the spaced apart and substantially parallel eccentric wiper arms.  The wiper arms urge the end portions of each pipe length slightly beyond the outer edges of each arcuate die to compensate for the effect cooling has on each pipe length.  Once the pipe is bent, the rotation of the bending form causes the pipe to drop into a tank of water.  A pump circulates cooled water through the tank so the water is maintained at approximately 40° Fahrenheit.  When water is pumped into the tank enough water flow is created to urge the elbows toward a conveyor belt.  Another pump creates water flow that urges the elbows onto the conveyor belt which removes the elbows from the tank and drops them in a storage bin.
Patent CA-2039257-C (CA)
Title: Measuring method and apparatus
Inventor: NOSE NORIYUKI
IPC: G03F7/20
Filed: 1991-03-27
Granted: 1997-01-14
Abstract: Disclosed is a method and apparatus for measuring a relative positional deviation between a first pattern and a second pattern, printed on an article such as a semiconductor wafer at different time moments, the measurement being based on detection of interference of diffraction lights from at least one of the first and second printed patterns.
Patent CA-2061954-C (CA)
Inventor: KISHI TAKASHI
IPC: G11B11/10
Filed: 1992-02-27
Granted: 2000-11-28
Abstract: In a magneto-optical recording medium having a substrate, a recording layer having at least a rare earth - transition metal alloy film formed on the substrate, and a dielectric layer formed on the recording layer, a depth of an area in the recording layer containing an element derived from the dielectric layer is set to 70 .ANG. or less from an interface between the recording layer and the dielectric layer in a depth-directional film structure analysis by Auger electron spectroscopy. Accordingly, mixing of impurities into the recording layer can be suppressed to thereby lower a recording magnetic field.
Patent CA-2073077-C (CA)
Title: Power blower ventilated hot gas water heater assembly with ambient air mixing means
Inventor: WINDON BRADLEY N
IPC: F23L17/00
Filed: 1992-07-03
Granted: 1997-09-16
Abstract: A water heater comprising a tank defining a water chamber, a combustion chamber located beneath the water chamber, a flue extending through the water chamber, having a lower end communicating with the combustion chamber, and having an upper end, and a power vent blower assembly including a blower having an inlet and an outlet, and a conduit adapted to communicate with the ambient atmosphere of the water heater, the conduit including a first end communicating with the upper end of the flue, a second end communicating with the blower inlet, and structure for mixing gases from the flue with air from the ambient atmosphere of the water heater, the mixing structure including a first projection extending inwardly and in the direction of gas flow through the conduit on one side of the conduit, and a second projection extending inwardly and in the direction of gas flow through the conduit on the other side of the conduit.
Patent CA-2074441-C (CA)
Title: Process and an apparatus for flavouring a soluble coffee powder
Inventor: KOCH PETER
IPC: A23L27/00
Filed: 1992-07-23
Granted: 1999-05-04
Abstract: A frost is produced by the condensation of carbon dioxide charged with coffee aromas and with water.   The frost is then transported by a supply means 2  into an enclosure 1 containing a certain quantity of oil renewed by addition and removal through pipes 4 and 5.   The carbon dioxide is sublimated and the ice is melted, forming an emulsion with the oil.  The emulsion is removed and the oil is separated from the water.     Application to the incorporation of an oil enriched with coffee aromas in a soluble coffee powder.
Patent CA-2079826-C (CA)
Title: Attenuated strains of aeromonas salmonicida useful as fish vaccines
Inventor: THORNTON JULIAN C
IPC: C12N1/20
Filed: 1992-10-05
Granted: 2007-08-21
Abstract: Novel attenuated strains of Aeromonas salmonicida are disclosed that are effective as live effective vaccines against furunculosis in fish. These vaccines may be administered by the immersion of fish in a solution of the vaccine. Methods of producing these strains and other strains having the identifying characteristics of these strains are also disclosed.
Patent CA-2080210-C (CA)
Title: Bidirectional data storage facility for bus interface unit
Inventor: LOHMAN TERENCE JOSEPH
IPC: G06F13/40
Filed: 1992-10-08
Granted: 1998-10-27
Abstract: The  present  invention  provides  a  bus  to  bus interface  unit  for  computer  systems  having  dual  bus architecture, such as a system bus and an I/O bus.  The bus interface unit includes an asynchronous bidirectional temporary   data   storage   function   for   data   being transferred between the two buses to and from devices coupled to each of the two buses.  Preferably the storage function  operates  in  modes  that  will   accommodate individual transfers of data,  data streaming,  and data burst  transfers,   and  can  accommodate  transfers  of information from contiguous addresses without initiating a new request for each address.