baber/WOPTO huggingface dataset:
Patent CA-2000540-A1 (CA)
Title: Method for the start-up and shut-down of an installation for operating physical and/or chemical processes, and a system for this purpose
Inventor: KLAREN DICK G
IPC: B01J8/18
Filed: 1989-10-12
Abstract: Abstract Installations   for   operating   physical   and/or  chemical processes, for example  heat  exchangers,  comprising  a  bundle of parallel  vertical  tubes  which,  via  tube  plates,  are  in open connection with a bottom header and  a  top  header,  are  known to operate with a granular mass maintained in a steady or quasi-steady fluidised state, at least  in  the  tubes,  by  means  of  a medium flowing upwards through the headers and tubes.      At start-up  and shut-down of such installations problems are encountered because  the granular  mass tends  to settle  to form a packed bed,  in  particular  if  the  upwardly  flowing medium may contain solid impurities or has a rather high viscosity.      The invention solves such problems by using a storage vessel, to  which  the  granular  mass  is  flushed  at  shut-down  of  the installation, a partial stream  of the  flowing medium  being first fed through the tubes at start-up, after which the granular mass is flushed from the storage  vessel to  the tubes  and only thereafter the main  stream of  medium is  fed to the tubes. At shut-down said main stream is first reduced and then the granular mass  is flushed back to the storage vessel and thereafter the partial stream of the medium is shut off.
Patent CA-2001597-A1 (CA)
Inventor: FACCHINI EDOARDO
IPC: G03C3/00
Filed: 1989-10-26
Abstract: Method to prepare a leading edge of a photographic film for framing, the leading edge (13) of the photographic film (11) being sheared at an angle (18) to the direction of feed (15) of the film (11) in a frame (12). Device to frame a photographic film (11) in frames (12), which employs the above method and comprises an assembly able to shear at an angle (18) the leading edge (13) of the photographic film (11). Photographic film (11) prepared with the above device and comprising a leading edge (13) sheared at an angle (18) to the direction of feed (15) within the frame (12).
Patent CA-2001757-A1 (CA)
Inventor: NOGUCHI YOSHIHIRO
IPC: B29C67/20
Filed: 1989-10-30
Abstract: The present invention concerns a method of preparing a porous structural unit comprising a plurality of layers having different specific gravities by pressing and heating a material including resin particles between opposing molds having a temperature difference to thereby cause the fusion or bonding of the resin particles, and a porous structural unit which improves acoustic absorption properties and heat insulation properties and in which the specific gravity is continuously changed.
Patent CA-2005258-A1 (CA)
Title: Heterogeneous isoparaffin/olefin alkylation process
Inventor: CHOU TAI-SHENG
IPC: C07C9/22
Filed: 1989-12-12
Abstract: F-4852(4801) HETEROGENEOUS ISOPARAFFIN/OLEFIN ALKYLATION PROCESS                       ABSTRACT          A process for alkylating an isoparaffin containing up to 20 carbon atoms with an olefin containing from 2 to 12 carbon atoms comprises contacting the isoparaffin and olefin with a catalyst comprising a large pore zeolite and a Lewis acid at a temperature of -40°C to 500°C and a pressure up to 5000 psig (35000 kPa), whereinthe molar ratio of the isoparaffin to the olefin is from 1:1 to 50:1 and the contacting takes place in the presence of water.
Patent CA-2006068-A1 (CA)
Title: Methacrylimide containing polymer
IPC: C08F20/52
Filed: 1989-12-20
Abstract: A methacrylimide containing polymer, which is a thermoplastic polymer comprising from 2 to 100% by weight of a structural unit represented by the general formula (I):                     ( I) where R represents a hydrogen atom or an aliphatic group, aromatic group or cycloaliphatic hydrocarbon group with 1 to 20 carbon atoms, and from 0 to 98% by weight of a structural unit derived from an ethylenic monomer, in which a distribution range of an imidization ratio of the polymer is less than 5%.  The methacrylimide containing polymer has excellent transparency and heat resistance.
Patent CA-2007811-A1 (CA)
Title: Crop material guide means in a machine for forming cylindrical bales
Inventor: MEYER JOEY L
IPC: A01F15/07
Filed: 1990-01-16
Abstract: ABSTRACT    A bale guide means is located at each end of a roller for feeding crop material into an expandable bale forming chamber to engage and guide the material at such ends inwardly of the bale to form a bale with end surfaces of planar contour and bale end portions with a density comparable to the density of the inner bale portions.
Patent CA-2008550-A1 (CA)
Inventor: SCHMIDHALTER BEAT
IPC: G11B7/2531
Filed: 1990-01-25
Abstract: 6-17431/+            Composite structure Abstract of the Disclosure A composite structure comprising a substrate having deposited thereon an electrically conductive metal film which is coated with a layer of porous metal oxide, wherein a thin, transparent and electrically conductive film of an anodically oxidizable metal is deposited on at least one surface of said substrate, the metal film having theron a thin trans-parent coating of an oxide of said metal, and wherein the oxide coating has, distributed over the surface thereof, fine pores which are closed adjacent to the metal film.            The composite material can be used as an optical information recording material or as a transparent electrode.
Patent CA-2008627-A1 (CA)
Inventor: SIXSMITH THOMAS G
IPC: F16L47/02
Filed: 1990-01-26
Abstract: A welding  seal  assembly  for use  in  joining and sealing  two  telescoped  tubular  elements in a  lap joint, specifically a tubular pipe in a pipe socket  formed in a pipe fitting.   The seal assembly comprises a thermoplastic welding sleeve with an embedded electric heating coil for fitting between the pipe and the socket; a mounting collar including a ring-like body that is fitted over the pipe and against the end of the socket element with a thin-walled, compressible flange extending from the body over the outer side  of  the  socket  element and overlying  the overlapped elements of the joint; an electrical connector in a radially projecting tab on the ring,  including electrical contacts connected to the leads of the heating coil; and a clamp ring surrounding the compressible flange and held captive thereon between the tab on the body and detents on the flange.  The clamp  ring  has an outwardly  offset  section  on  one  side providing generally radial walls that are squeezed together to contract the clamp ring and compress the flange around the joint.  The collar, flange and socket tab are injection-molded with the welding sleeve and the embedded coil as mold inserts, and the end of the welding sleeve is bonded to the collar in the molding process.
Patent CA-2008926-A1 (CA)
Title: Plasma reactor apparatus and method for treating a substrate
IPC: C23C16/452
Filed: 1990-01-30
Abstract: An apparatus and method for treating a substrate with an excited species removed from a plasma (15, 15a, 31, 52, 53) is described. The apparatus includes closed or open end tubes (13, 22, 30, 54 and 55) with apparatus or nozzles (16, 32, 56 and 57) for directing the excited species at a substrate (17, 33, 59) and a tunable plate or sliding short (11, 38, 39, 40) internal or external of the tubes for positioning the plasma in the tube during operation of the apparatus. Tuning or nozzle position or power variations are used. The method and apparatus is useful for depositing films, etching and the like.
Patent CA-2008930-A1 (CA)
Title: Security device
Inventor: CARTWRIGHT GAVIN L
IPC: E05B67/38
Filed: 1990-01-30
Abstract: ABSTRACT The invention relates to a security device for preventing theft of wind surfers.  The device comprises first and second members wehich have projections for locating each member in the mast track of the wind surfer.  The first member has a longitudinal section which co-operates with the second member to prevent access to the mast track.
Patent CA-2010451-A1 (CA)
Title: N-phase sinewave converter
Inventor: WASHBURN ROBERT D
IPC: H02M7/48
Filed: 1990-02-20
Abstract: A DC to AC sinewave converter having an FET with its gate terminal coupled to a switching signal which turns the  FET  on  and  off.   A pair  of parallel,  oppositely conductive diodes couples the drain terminal of the FET to a resonant circuit that is responsive to a source of DC voltage.   A  clamping  diode  is  connected  between  the parallel diodes and the source terminal of the FET for preventing  the  drain  and  source  terminals  from  being reverse biased.
Patent CA-2011849-A1 (CA)
Title: Breakaway clutch device
Inventor: HUCUL DANIEL E
IPC: B25J19/06
Filed: 1990-03-09
Abstract: ABSTRACT OF THE INVENTION          A clutch device adapted for use with robotic tooling is disclosed.  The clutch device, which is assembled in a housing having  a  longitudinal  axis,  includes  a  sensing  device  for detecting undesired pressure from an external source.  A rod is fixably secured to the housing and extends along the longitudinal axis  of  the  housing.   A  collar  assembly  is  provided  for connecting the  clutch device to robotic tooling.   The collar assembly  is  capable  of  being  pivotally  associated  with  the housing.  A piston assembly, which is in communication with the sensing device, is disposed about the rod and moves the collar assembly between  a  first  substantially  static  position to  a second broken-away position upon receiving a signal  from the sensing device.
Patent CA-2016381-A1 (CA)
Title: Two cycle engine catalytic emission control
IPC: F02B33/30
Filed: 1990-05-09
Abstract: TWO CYCLE ENGINE CATALYTIC EMISSION CONTROL          Abstract of the Disclosure Combinations of split and valved exhaust ports are provided in a ported two cycle engine with divided emission control system to provide better control of the division of exhaust gas flow to the two converters.
Patent CA-2016387-A1 (CA)
Title: High level expression of functional human plasminogen activator inhibitor (pai-1) in e. coli
Inventor: DAVIS GARY L
IPC: C12N1/21
Filed: 1990-05-09
Abstract: Title HIGH LEVEL EXPRESSION OF FUNCTIONAL HUMAN PLASMINOGEN ACTIVATOR      INHIBITOR (PAI-l) IN E. COLI          Abstract Biologically functional mature E. coli-expressed recombinant PAI-1 is disclosed, as well as plasmid expression vectors for production of rPAI-1, and a method for identifying inhibitors of the binding of PAI-1 and t-PA.
Patent CA-2019017-A1 (CA)
Title: Electronic means of switching antennas to a common bus
Inventor: WHITTINGTON MARK
IPC: H01Q3/24
Filed: 1990-06-14
Abstract: F.N. 44188 CAN 7A                 Abstract of the Disclosure A circuit for selecting an input to a signal processing network from among several switchable antenna units.  Each antenna unit includes a winding which is connected to a common signal bus.  The switchable antenna units may be placed in "on" or "off" states in response to a controller, such as a microprocessor.  One terminal of each winding is connected to a transistor which causes the terminal to be in an open condition when the unit is unselected, attenuating any signal which might otherwise be transmitted to the signal bus.  A second winding is inductively coupled to the first winding and is used to improve attenuation of unselected signals.
Patent CA-2020276-A1 (CA)
Inventor: SANO TERUTAKA
IPC: B29C45/14
Filed: 1990-06-29
Abstract: ABSTRACT      A surface-patterned, injection-molded article of polybutylene terephthalate is produced by placing a film composed mainly of a polybutylene resin and back-printed with a desired graphic and/or indicia pattern in a mold cavity so that the printed surface of the film will be in contact with resin to be injected thereinto.  Molten resin composed mainly of polybutylene terephthalate is then injected into the mold cavity to bond the pattern-printed film integrally onto a corresponding surface of the resulting molded PBT article.
Patent CA-2020399-A1 (CA)
Inventor: VASSAL MICHEL
IPC: G09F3/16
Filed: 1990-07-04
Abstract: Porte-message pour pistolet de distribution de carburant Porte-message pour pistolet de distribution de carburant, caractérisé en ce qu'il comporte un panneau d'affichage (6) relié par une tige (7), inclinée vers l'arrière, au bec (4) du pistolet, à proximité du corps (1) de celui-ci, par des moyens de fixation (bague ou collier clipsable (5)). Fig. 1
Patent CA-2021057-A1 (CA)
IPC: H01Q21/10
Filed: 1990-07-12
Abstract: An omnidirectional antenna includes one or more dipole radiators.  Each dipole radiator comprises a first and second cylindrical radiating element.  Each radiating element includes an end plate for mounting the radiating element coaxially on a tubular mast.  The cylindrical radiating elements, end plates and tubular mast are all DC connected.  A feed line is provided which may extend through the center of the mast and exit at an opening for connection to a secondary feed line.  The secondary feed line is connected to an end of one of the cylindrical radiating elements of each pair of elements for each dipole radiator. The feed line is connected to the end of the cylindrical radiating element opposite the end plate.  The configuration of the dipole radiators is such that the radiator functions as an RF choke for the adjacent radiators.  An additional single cylindrical element can be provided at the end of a plurality of dipole radiators to provide RF choking for the immediately adjacent dipole radiator.  A plurality of main feed lines may be included to extend through the center of the mast with corresponding openings for connection to secondary feed lines.
Patent CA-2021726-A1 (CA)
Title: Method of making 1,1'-sulfonyl-bis(3-nitro-5-trifluoromethyl)-benzene
Inventor: STULTS JEFFREY S
IPC: C08G73/10
Filed: 1990-07-23
Abstract: RDF/dka ABSTRACT OF THE DISCLOSURE Disclosed is a method of making 1,1'-sulfonyl-bis(3-nitro-5-trifluoromethyl) benzene by reacting dibenzotrifluoride sulfide with at least four equivalents of fuming nitric acid and at least four equivalents of fuming sulfuric acid at a temperature below 20°C, until the sulfide link is oxidized to a sulfone link, then raising the temperature to above 20°C until the reaction is complete. Also disclosed is the preparation of 3,3'-sulfonyl-bis(5-trifluoromethyl) benzamine by reducing the benzene compound.
Patent CA-2022184-A1 (CA)
Title: Electrochemical synthesis of organosilicon compounds
Inventor: RENAULD FRANCK A D
IPC: C25B9/19
Filed: 1990-07-27
Abstract: Abstract of the Disclosure A method of making silanes, carbosilanes or polycarbo-silanes having at least one silicon-bonded organic group, linked to the silicon atom via a Si-C bond by electroreduction of a compound (I), having a substituent -RX wherein R is a divalent carbon or hydrocarbon compound which may be substituted and X is halogen in the presence of (II), a silane of the general formula R'4-a-bSiXa(RX)b wherein R' is hydrogen, a hydrocarbon group, a group containing H, C and O atoms, S atoms and/or P atoms and groups consisting of C, H and N atoms, a has a value of 1 to 4, b has a value of 0 to 3 and a?b has a value of 2, 3 or 4.
Patent CA-2025171-A1 (CA)
Inventor: FRIEDT JEAN-MARIE
IPC: F04B1/0417
Filed: 1990-09-12
Abstract: Procédé pour la réalisation d'un dépôt d'un revêtement protecteur inorganique et amorphe sur un substrat polymériéque organique, ce revêtement étant canstitué de composés sous forme d'oxyde, nitrure, carbure, ou alliages de ces composés, par décomposition photosensibilisée en phase gazeuse.      Selon l'invention, ce procédé consiste à utiliser la décomposition photosensibilisée d'un milieu gazeux incluant les précurseurs des éléments constituant le dépôt du revêtement protecteur inorganique amorphe à réaliser par excitation photonique d'une impureté préalablement introduite dans le milieu, propre à réaliser un transfert indirect d'énergie aux molécules de celui-ci, de manière à permettre la décomposition puis le dépôt de ces éléments sur le substrat. L'invention concerne également un réacteur adapté à la mise en oeuvre de ce procédé.
Patent CA-2027413-A1 (CA)
Title: Electrical motor stator assembly with square edged stator plates
Inventor: PETERS RICHARD E
IPC: H02K1/20
Filed: 1990-10-11
Abstract: A laminated stator assembly for an electric motor includes plate laminations which have square-trimmed edge segments separated by circular peripheral edge sectors, which plates are randomly oriented in assembling the stator to provide a generally cylindrical outer surface. In this manner, the stator can be enclosed in and supported by an outer motor shell or housing which is substantially thinner and less expensive. The stator assembly of the present invention enjoys the material savings and enhanced air cooling characteristics of prior art stator constructions utilizing square-trimmed laminations, but eliminates the detrimental aspects of difficult alignment and heavier motor housings. In addition, overall stator assembly is substantially simplified.
Patent CA-2030984-A1 (CA)
Title: Fluid collector and container
Inventor: SPENCE JAMES
IPC: A01K63/00
Filed: 1990-11-28
Abstract: A  spill  container  advantageously  adapted  for  use  in conjunction with a conventional aquarium is provided.  The spill  container  comprises  a  receptacle  for  receiving leaking fluid, and a flexible water-proof compartment for receiving  a  flow  of  fluid  from the receptacle.    The receptacle comprises a containing wall defining a hollow fluid-trapping vessel, an inlet opening for receiving the leaking  fluid,  and  an  outlet  opening  connecting  the receptacle to the flexible water-proof compartment.   The flexible water-proof compartment comprises a base, a side wall and an inlet opening in fluid communication with the receptacle  outlet  opening,  the  flexible  water-proof compartment  storable  in  a  retracted  fluid-receiving position  adjacent  to  the  receptacle  and  extendibly responsive without human intervention to a fluid pressure exerted through the outlet opening by a fluid column in the receptacle,  whereby the  spill container  is  adapted to expandably  accommodate  an  accidental  leak  of  volume exceeding  the  fluid  volume  of  the  receptacle  without spillover from the receptacle.
Patent CA-2033159-A1 (CA)
Title: Container for bulk material with vibrating bin activator
Inventor: VOHWINKEL HORST
IPC: B65G65/44
Filed: 1990-12-24
Abstract: Summary:             Disclosed herein is a bulk material container or bin (1) which is equipped with an oscillating or vibrating bin activator system (2) which consists of an approximately funnel-shaped discharge bottom part (3) containing an un-balance motor (4) and a vibrating plate (5), the discharge bottom part (3) being elements under an intermediate layer of rubber spring elements (10) at the edge of a bottom ope-ning (11) of the bulk material bin (1).  As a sealing means between the stationary bulk material bin (1) and the oscil-lating bin activator (2) there is attached a circumferential flexible sleeve (13).  In order to protect this sleeve against any outside mechanical forces or weather influences a circum-ferential protecting cover (16) is located outside in front of the sleeve (13).  This protecting cover (16) furthermore prevents leakage of bulk material in case of the sleeve (13) bursting.
Patent CA-2035527-A1 (CA)
Inventor: LEBL MICHAL
IPC: B01J19/00
Filed: 1991-02-01
Abstract: A method and an apparatus for performing a multiple synthesis of peptides on a solid carrier. Active components are successively bonded to functional groups anchored on a carrier, and as the carrier there is applied planar functionalized porous material divided into compartments, into which the needed activated component is put. Common operations of the synthesis are carried out by all compartments of the carrier at the same time.
Patent CA-2036597-A1 (CA)
Title: Filler for polyester molding compound and method
Inventor: LAMOND TREVOR G
IPC: C08K3/26
Filed: 1991-02-19
Abstract: An  improved dry ground  calcium carbonate  filler  is provided which is less sensitive to variations in relative humidity and does not promote premature viscosity increase in polyester molding compound.   This filler is dry ground from a Caribbean micritic limestone to produce Class I and Class II fillers which are acceptable for use in polyester molding compound applications.  A polyester molding compound containing  this  dry  ground  filler  produces  a  composite having superior izod impact resistance and surface quality.      In some situations filler loading levels may be increased 10 - 15% in the SMC/BMC without detrimental effects on the final composite.
Patent CA-2037193-A1 (CA)
Title: Universal adjustable cover
Inventor: BOGDANOVS ANDRIS
IPC: F21V21/008
Filed: 1991-02-27
Abstract: Abstract A universal adjustable cover 20 for a lighting fixture 10.   Universal cover 20 has openings for mounting on a conduit 50 parallel to the ceiling, and additional openings 22 for angle mounting and 24 for mounting on a vertical conduit.  Universal adjustable cover eliminates need for stocking a large number of lighting fixtures for only one mounting configuration.
Patent CA-2040906-A1 (CA)
Title: Apparatus for filling bottles with a liquid
Inventor: METTE MANFRED
IPC: B67C3/26
Filed: 1991-04-22
Abstract: ABSTRACT           Apparatus for filling large bottles with a beverage has a rotating vessel which contains a supply of pressurized beverage and admits the beverage into a series of metering chambers forming part of container filling modules at the underside of the vessel.  The outlet opening of each metering chamber is controlled by a valve which can permit or prevent the flow of beverage into a casing having an inlet for reception of beverage from the metering chamber, an outlet which is radially and vertically offset relative to the inlet, and a helical swirling channel which extends from the inlet to the outlet and surrounds the central vertical axis of the outlet along an arc of approximately or exactly 360°. The cross-sectional area of the channel decreases proportionally with the distance from the inlet, and the intermediate portion of the channel communicates with the outlet by way of a conical passage.  The swirling stream of beverage which issues from the outlet continues to circulate in the neck of a bottle so that it provides room for the escape of gas from the bottle in the course of the beverage admitting operation.
Patent CA-2041279-A1 (CA)
Title: Quadrature biorthogonal modulation
Inventor: FLEISHER SOLOMON M
IPC: H03D3/00
Filed: 1991-04-25
Abstract: Quadrature Biorthogonal Modulation Abstract Digital modulation/demodulation methods utilize multiplexing in quadrature of two N-dimensional biorthogonal signal sets wherein the said signal sets are transmitted on each of the two quadrature carriers cos.omega.ct and sin.omega.ct in order to increase the bandwidth efficiency and/or the power efficiency as compared to known digital transmission methods. One embodiment of the invention utilizes two sets of combined frequency/phase modulated (FPM) signals of the type NFSK/2PSK with adjacent frequencies separation of 1/T Hz as the constituent biorthogonal signal sets, and is referred to as Quadrature Frequency/Phase Modulation (QFPM). A preferred embodiment of the invention referred to as Continuous Phase Quadrature Frequency/Phase Modulation (CP QFPM) is essentially a modified QFPM scheme with sinusoidal shaping and an offset of T/2 in the relative alignment of the baseband modulating waveforms for the two quadrature components of the QFPM signal set. Another preferred embodiment of the invention, referred to as Continuous Phase Frequency/Phase Modulation (CP FPM), is a particular case of CP QFPM wherein the same frequencies are used in both quadrature components of CP QFPM which yields a constant-envelope signal set.