baber/WOPTO huggingface dataset:
Patent CA-1297020-C (CA)
Title: Estradiol implant composition and method for preparation
Inventor: SCHAAF MIMI Y C
IPC: A61K31/565
Filed: 1987-08-07
Granted: 1992-03-10
Abstract: 30,369 IMPROVED ESTRADIOL IMPLANT COMPOSITION       AND METHOD FOR PREPARATION                        The invention relates to biodegradable compositions which continuously release estradiol in a uniform manner over extended periods of time and do not exhibit initial release of undesirably high levels of active ingredient.                The invention also relates to a method for preparation of the compositions, and a method for administering estradiol parenterally to feedlot animals in a continuous and uniform fashion over extended periods of time.
Patent CA-1295931-C (CA)
Title: Process to produce helium gas
Inventor: FISHER THEODORE F
IPC: F25J3/02
Filed: 1987-08-13
Granted: 1992-02-18
Abstract: Process to Produce Helium Gas ABSTRACT         A process to produce helium gas from a feed to a nitrogen rejection unit comprising employing refrigeration from the nitrogen rejection unit to increase the recovery of helium by cooling crude helium prior to further processing.
Patent CA-1293948-C (CA)
Title: Apparatus and method for controlling the temperature in catalyst regeneration
Inventor: JENKINSON RONALD J
IPC: B01J8/26
Filed: 1987-08-19
Granted: 1992-01-07
Abstract: ABSTRACT OF THE DISCLOSURE          An apparatus and method are provided to remove the heat during the regeneration of catalyst particles.  A regenerator comprises a regeneration zone and a cooling zone having disposed therein a steam coil. The two zones are separated by a vertical partition open at both ends.  Colder catalysts from the cooling zone flows into the regeneration zone and visa versa due to differences in densities of the fluidized particles in each  zone.   The flow of aeration steam to the cooling zone is controlled by a valve.
Patent CA-1322756-C (CA)
Title: Imidazole derivatives and a process for their production
Inventor: MCGARRITY JOHN
IPC: C07D495/04
Filed: 1987-12-01
Granted: 1993-10-05
Abstract: IMIDAZOLE DERIVATIVES AND A PROCESS FOR THEIR PRODUCTION      ABSTRACT     Imidazole derivatives and a process for their production.   The derivatives have the formula:                           IX     wherein R1 is an (R)- or (S)-1-phenylalkyl group, an (R)-or (S)-1-alkoxycarbonyl-1-phenylmethyl group or an (R)- or (S)-1-aryloxycarbonyl-1-phenylmethyl group, R2 is hydrogen, a substituted or unsubstituted alkanoyl group, and unsubstituted or a substituted benzoyl group, a substituted or an unsubsti-tuted benzyl group, an alkoxycarbonyl group, and aryloxy-carbonyl group, an alkoxyalkyl group, a pyranyl group, a substituted or unsubstituted benzenesulfonyl group, an alkylsulfonyl group, a diarylphosphinyl group, a dialkoxy-phosphinyl group or a trialkylsilyl group, and A is a sulfur or oxygen atom.  The derivatives are suitable particularly as intermediate products for the production of (+) biotin.
Patent CA-1294958-C (CA)
Inventor: DE LUCCA GEORGE V
IPC: A61L17/00
Filed: 1987-12-10
Granted: 1992-01-28
Abstract: ABSTRACT High tenacity chitin acetate/formate and chitosan acetate/formate fibers and the process for making such fibers are disclosed.
Patent CA-1304511-C (CA)
Inventor: FISCHER ADDISON M
IPC: G06F17/21
Filed: 1988-02-12
Granted: 1992-06-30
Abstract: ABSTRACT          An interactive data processing implemented method and apparatus for composing and editing a document in which a user is afforded great flexibility in defining the document geometry and in changing the data presentation characteristics associated with non-contiguous portions of the document.  According to the present invention, each of the distinct line formats in the document is assigned an abstract format name (i.e., a Named Format) and each line in the document is associated with a distinct format.  A Named Format is associated with each fragment of the text in the document.  Likewise, an abstract name, referred to as a Named Font, is associated with a wide range of specifiable data presentation characteristics which operate over a range of the document defined by the user.  The same Named Format and Named Font is used to simultaneously specify different data presentation characteristics for the output device of the system.  By a single change in the specification for a Named Format or Named Font, all the underlying data throughout the text which is associated with a Named Format or Font is automatically changed to reflect the modified characteristic specification.
Patent CA-1331221-C (CA)
Inventor: KONDO KAZUHIRO
IPC: G10L19/06
Filed: 1988-02-15
Granted: 1994-08-02
Abstract: ABSTRACT OF THE DISCLOSURE         A speech signal transmission system for transmitting coded speech signals with variable bit rate is disclosed, which comprises a coder for analyzing digital speech signals inputted in a one-frame period and transforming them into coded data comprising a plurality of parameters indicating characteristics of the inputted speech signals, a data arranging circuit for arranging the coded data outputted by the coder in the order of the priority in the decoding of the speech signals and outputting them, and a bit stealer allowing a series of coded data outputted successively by the data arranging circuit to pass through only in a period of time determined by the transmission bit rate.  The bit arranging circuit outputs the parameters in the order of the priority or decomposes each of them in unit of a bit and outputs them with decreasing priority.  Parameters or bits of low priority are omitted by the bit stealer, depending on the transmission bit rate.  On the receiver side the parameters are extracted and the speech signals are decoded on the basis of arrangement type identifica-tion codes transmitted together with the coded data.
Patent CA-1286983-C (CA)
Title: Restriction subs for setting cement plugs in wells
Inventor: BODE ROBERT E
IPC: E21B47/09
Filed: 1988-05-13
Granted: 1991-07-30
Abstract: ABSTRACT OF THE DISCLOSURE      In accordance with illustrative embodiments of the present invention,  restriction subs  for use in setting cement plugs in wells include a tubular threaded adapter having an internal annular recess, and a metal restriction sleeve  mount  in  such  recess.   In  one  embodiment,  the sleeve has a corrugation that extends into the bore of the adapter to provide a deformable restriction;  in another embodiment the sleeve has curved resilient tabs whose free ends  extend  into  such  bore.   The  restrictions  are cooperable  with  a  displacement  plug  having  a  metal expander member on its nose so that a distinct pressure is required to cause the expander member and plug to be forced through the restriction.
Patent CA-1340232-C (CA)
Inventor: WALLNER BARBARA P
IPC: A61K38/00
Filed: 1988-06-02
Granted: 1998-12-15
Abstract: Polypeptides that bind to CD2, the receptor on the surface of T-lymphocytes.  Most preferably, the polypeptides bind to CD2 on the surface of T-lymphocytes and inhibit adhesion between T-lymphocytes and target cells.  DNA sequences that code on expression in appropriate unicellular hosts for those polypeptides.  Methods of making and using those polypeptides in therapy and diagnosis.
Patent CA-1303102-C (CA)
Title: Pistol grip type compressed air blower
Inventor: SIBBERTSEN WALTER
IPC: B08B5/02
Filed: 1988-08-02
Granted: 1992-06-09
Abstract: ABSTRACT      The  invention  relates  to a pistol  grip type compressed air blower having a handle      with a compressed air connection element and an air valve, on which a support body is placed with a turbulence tube     .  On one end section, the support body is  formed with  a cold air nozzle       that has  a passage      that is coaxial with the center axis of turbulence tube      and on an opposite end section, the support body is formed with a warm air nozzle with a hole that is coaxial to the center axis of turbulence tube     .  In some embodiments, the warm air nozzle is adjustable.   A turbulence chamber with at least one hole directed tangentially into the interior space of the turbulence chamber is connected between the cold air nozzle       and the turbulence tube      ,  and receives compressed air via a duct      of the handle that is connected to  the  compressed  air  connection element via the air valve.  Turbulence chamber      is formed by a flanged disk that rests on the cold air nozzle     .  The flanged disk has a center hole on one side of which is placed a socket for holding the flanged disk on the cold air nozzle and on the other side of which is formed a continuous outside edge flange       in which are formed slot-shaped grooves that tangentially end into a center recess serving as the interior space of the turbulence chamber.   The passage of the nozzle body of the cold air nozzle is designed as a diffuser.   The cold air nozzle and warm air nozzle       may each be  detachably connected to a sound damper     .
Patent CA-1293310-C (CA)
Title: Adaptive control system
Inventor: BOS PETER J
IPC: F25D21/00
Filed: 1988-08-25
Granted: 1991-12-17
Abstract: ABSTRACT     The present application discloses a method for controlling the defrosting of a heat transfer unit of a temperature conditioning system by initi-ating a defrost operation when a predetermined amount of frost has accumulated on the unit during a frost accumulation period that occurs between defrost operations.  The method includes the steps of determining the time required to actually defrost the unit, increasing or decreasing the frost accumulation period dependent upon the defrost time, where the actual defrost time is determined by determining the time required to raise the temperature of the unit from a first to a second predetermined temperature.
Patent CA-1303386-C (CA)
Inventor: BUTTERFIELD ROGER P
IPC: F16H37/02
Filed: 1988-09-06
Granted: 1992-06-16
Abstract: `     VARIABLE SPEED TRANSMISSION            ABSTRACT      A continuously variable transmission (10) including a driving shaft (22) connected to an engine output member (12) and a driven shaft (24). The shafts are interconnected by a steplessly variable coupling (26). A bidirectional gear drive mechanism (28) connects the driven shaft to a differential mechanism (14) having two output shafts (16,18) extending therefrom. The drive mechanism includes a two gear forward (50,52) and a three gear reverse (58,60,62) drive path each of which is controlled by a fluid actuated starting clutch mechanism (46 or 48). Each gear path is adapted to drive a transfer gear (44) which continually intermeshes with a ring gear (29) of the deferential defining another gear mesh. By such construction, the output shafts and the engine output member may rotate in the same direction during a forward drive mode of operation.
Patent CA-1304761-C (CA)
Title: Load cell
Inventor: DILLON BENNY N
IPC: G01G3/18
Filed: 1988-10-20
Granted: 1992-07-07
Abstract: Load Cell Abstract of the Disclosure A digital load cell includes a rocker pin, guided beam, torsion ring or other counterforce, a circuit board mounted on the counterforce and an enclosure sealing the circuit board and all but the load bearing surfaces of the counterforce.  The circuit board includes an A/D converter and a microcomputer.  Digital communication is provided with the circuit board through a connector mounted on the enclosure.  Weight data are corrected digitally.  The load cell may be calibrated, characterized, controlled and monitored digitally through the connector from a remote location without physically penetrating the enclosure.  One or a number of digital load cells may be connected to a computer or controller to form one or more weighing scales.
Patent CA-1316725-C (CA)
Title: Process of forming reflection holograms in photopolymerizable layers
Inventor: KEYS DALEN E
IPC: G03F7/027
Filed: 1989-01-12
Granted: 1993-04-27
Abstract: TITLE                  lM-0066 PROCESS OF FORMING REFLECTION HOLOGRAMS IN PHOTOPOLYMERIZABLE LAYERS                        ABSTRACT          An improved process is is disclosed for the preparation of reflection holograms in said photopolymerizable layers  The reflection hologram may be enhanced by treatment with certain enhancing agents, or by heat treatment.
Patent CA-1293777-C (CA)
Title: Low power bipolar-cmos interface circuit
Inventor: KERTIS ROBERT A
IPC: H03K19/0175
Filed: 1989-02-01
Granted: 1991-12-31
Abstract: (53.1116/53.1118) BIPOLAR-CMOS INTERFACE CIRCUIT     ABSTRACT OF THE DISCLOSURE         A biCMOS interface circuit receives a plurality of incoming signals at a first level and supplies a plurality of output signals at a second level.  The interface circuit establishes control voltages which are used to maintain an identical trip point in each of a plurality of translator circuits.  Generally, the trip point is set at midway between the "high" and the "low" levels of the incoming logic signal.  The control voltages assure reliable performance over a wide operating environment.     RCC0218:ms
Patent CA-1311789-C (CA)
Title: Compartment assembly for a refrigerator
Inventor: ARMSTRONG WILLIAM J
IPC: F25D23/04
Filed: 1989-02-16
Granted: 1992-12-22
Abstract: PATENT - 9D-HR-16765 - Armstrong et al COMPARTMENT ASSEMBLY FOR A REFRIGERATOR                 ABSTRACT OF THE DISCLOSURE A compartment assembly for a refrigerator comprising a panel on the inside of a refrigerator door, the panel having a recess area with a rear wall, a top wall and at least two spaced apart vertical dikes directed outwardly from the rear wall.  The recess area has at the bottom an inwardly directed lip and the dikes have a side wall and a front face with the front face having a slot.  There is a tray having a bottom wall, an integrally formed rear wall, front wall, and side walls, with the side walls each having a flange projecting outwardly perpendicular to the side walls and each of the flanges have a rearwardly projecting hook shaped element parallel to the side walls. The tray has a length such that the hook shaped elements cooperate with the slots in the vertical dikes for engagement and a horizontal depth such that the front wall projects outwardly from the dikes and the rear wall extends to the rear wall of the recess and rests on the projecting lip.  A cover having a body portion and end portions is pivotally secured at the end portions to the side walls of the tray.
Patent CA-1335491-C (CA)
Title: Method for extracting organic compounds from air/permanent gas mixtures
Inventor: BEHLING DIETER
IPC: C07C7/144
Filed: 1989-02-24
Granted: 1995-05-09
Abstract: A method of removing organic compounds from an air/permanent gas mixture.   This mixture,  as untreated medium,  is conveyed to a first gas separation membrane and is divided into a filtrate gas stream that is concentrated with organic compounds and a retained gas  stream that is depleted of organic compounds.   The concentrated filtrate is conveyed to a recovery device for the recovery of organic compounds therefrom.   The pressure of the air/permanent gas mixture is raised prior  to  entry thereof  into  the  first gas separation membrane.   The  pressure  of  the concentrated filtrate is reduced after exit thereof from the first gas separation membrane.   The depleted gas  stream is  discharged  into the atmosphere,  and the gas stream that exits the recovery device is returned to the air/permanent gas mixture at some point subsequent to the pressure increase thereof.
Patent CA-1330566-C (CA)
Title: Organic derivatives of rhenium oxides and their preparation and use for the metathesis of olefins
Inventor: HERRMANN WOLFGANG A
IPC: C07C6/04
Filed: 1989-03-09
Granted: 1994-07-05
Abstract: Abstract:            A compound of the general formula R1aRebOc, wherein a is an integer from 1 to 6, b is an integer from 1 to 4 and c is an integer from 1 to 14 and the sum of a, b and c conforms to the 5- to 7-valency of rhenium with the proviso that c does not exceed 3-b, and wherein R1 represents alkyl having from 1 to 9 carbon atoms, cycloalkyl having from 5 to 10 carbon atoms or aralkyl having from 7 to 9 carbon atoms and wherein R1 is unsubstituted or at least partially fluorinated, said compounds containing not more than three groups of more than 6 carbon atoms per rhenium atom and containing a hydrogen atom bound to the carbon atom in .alpha.-position to the rhenium atom, the methylrhenium oxides CH3ReO3 and (CH3)6Re2O3 and pentamethylcyclopentadienyl-rheniumtrioxide (?5-C5(CH3)5)ReO3 being excluded.            The invention further relates to a catalytic composition for the metathesis of olefinic compounds comprising an oxidic carrier charged with a compound of the general formula R1aRebOc, wherein a is an integer from 1 to 6, b is an integer from 1 to 4 and c is an integer from 1 to 14 and the sum of a, b and c conforms to the 5- to 7-valency of rhenium with the proviso that c does not exceed 3?b, and wherein R1 represents  alkyl having from 1 to 9 carbon atoms, cycloalkyl having from 5 to 10 carbon atoms or aralkyl having from 7 to 9 carbon atoms and wherein R1 is unsubstituted or at least partially fluorinated, said compounds containing not more than three groups of more than 6 carbon atoms per rhenium atom and containing a hydrogen atom bound to the carbon atom in a-position to the rhenium atom.            The invention also relates to a process for the preparation of a metal organic catalyst as defined hereinbefore, which comprises charging the carrier with the rhenium compound from an anhydrous solvent inert towards the rhenium compounds, and subsequently removing the volatile compounds.            The invention finally relates to a process for the metathesis of olefins which comprises reacting an olefin of the formula YCZ=CZ-(CX2)nR2 (II) wherein n an integer from 1 to 28, X represents H or F, Y represents H or alkyl having from 1 to 10 carbon atoms and Z represents H or a non-aromatic hydrocarbon group having from 1 to 6 carbon atoms and R2 being H, alkyl, halogen, COOR3 or R4, wherein R3 and R4 represent alkyl having from 1 to 15 carbon atoms or phenyl which is unsubstituted or contains from 1 to 3 substituents or wherein R4 is trialkylsilyl R5Si, wherein R5 represents alkyl having from 1 to 5 carbon atoms, at a catalyst comprising an oxidic carrier charged with a rhenium compound as defined hereinbefore.
Patent CA-1335705-C (CA)
Title: Antimicrobial powders and method for making same
Inventor: ICHIMURA KENICHI
IPC: A01N25/12
Filed: 1989-03-13
Granted: 1995-05-30
Abstract: The antimicrobial powders of the present invention is obtained by supporting at least one antimicrobial metal of copper, zinc and alloys thereof on the surface of hydrous titanium oxide or titanium oxide particles by electroless plating, vapor deposi-tion, compression mixing, mixing and reducing, and thermal decomposition of compound.  These powders are used to provide antimicrobial resin compositions, antimicrobial rubber compositions, antimicrobial glass compositions and antimicrobial coating compositions.
Patent CA-1300480-C (CA)
Title: Chair mechanism
Inventor: LAPOINTE LARRY P
IPC: A47C1/035
Filed: 1989-04-25
Granted: 1992-05-12
Abstract: Abstract of the Disclosure An incliner chair has a back and  seat unit mounted on a base  by way of slanted tracks and wheels at the rear and swing links at the front so that the unit can  move by gravity from a  rear upright position to  a front recline position.  Positioning linkage  means for holding the  unit in the  upright  and  recline  positions is  provided and  this  may  be activated by a short stroke handle concealed between the side of the unit and the base.  A leg rest assembly is connected to the unit to move  with it and provide a means  to return the unit  from the recling position  to the upright position.
Patent CA-1312652-C (CA)
Title: Wide dynamic range current measuring apparatus
Inventor: VERBANETS WILLIAM R
IPC: G01R19/257
Filed: 1989-05-04
Granted: 1993-01-12
Abstract: WE 54,364 ABSTRACT OF THE DISCLOSURE           Apparatus for measuring current over a wide range generates  an  eight  bit  accurate,  16-bit  dynamic  range digital signal from a current transformer secondary.   Two signals proportional to the rectified secondary current, one generated by a large burden resistor and the other by an amplifier   with   programmable   gain   and   an   overrange indication, are applied  through a multiplexer to an eight bit analog to digital converter which has three selectable reference  voltages.    A microprocessor  selects  the  input signal, converter reference voltage, and one of four levels of amplifier gain which provide the greatest resolution for the magnitude of the current being measured, and provides an appropriate scale factor, from 20 to 28, for the eight bit accurate digital signal generated by the analog to digital converter.
Patent CA-1321822-C (CA)
Title: Circuit breaker warning relay and control accessory
Inventor: DOUGHERTY JOHN J
IPC: H02H3/04
Filed: 1989-06-08
Granted: 1993-08-31
Abstract: CIRCUIT BREAKER WARNING RELAY    AND CONTROL ACCESSORY         ABSTRACT OF THE DISCLOSURE    A circuit breaker warning and control relay pro-vides visual indication of an impending overcurrent condition.  Sufficient time is thereby allotted for manual intervention to prevent damage to material and equipment utilized within sensitive manufacturing pro-cesses.  The relay can be arranged to automatically shut-down selected equipment in a predetermined order for load-shedding implementation.
Patent CA-1316441-C (CA)
Title: Solutions of permonosulphuric acid
Inventor: LAPHAM DAVID J
IPC: G03F7/42
Filed: 1989-06-09
Granted: 1993-04-20
Abstract: ABSTRACT       Solutions of permonosulphuric acid Aqueous mixed permonosulphuric acid/sulphuric acid solutions, such as semiconductor surface photoresist stripping solutions may be stabilised for storage by the addition of one or more of the metals gallium, germanium, indium, tin in the 4-valent form, antimony, thallium, bismuth and lead suitably in the oxide or hydrous oxide form.  Mixtures of metals, for example of bismuth, tin in the 4-valent form, gallium and germanium may be particularly effective.
Patent CA-1309653-C (CA)
Title: Method for reducing pressure drop in the transportation of drag reducer
Inventor: UBELS SIBRAND A
IPC: F17D1/17
Filed: 1989-07-26
Granted: 1992-11-03
Abstract: METHOD FOR REDUCING PRESSURE DROP IN THE TRANSPORTATION OF DRAG REDUCER      Abstract of the Disclosure Method for reducing pressure drop in a conduit carrying a viscous drag reducing material by injecting a lower viscosity liquid which is immiscible with the drag reducing material at the periphery of the conduit to form a flowing annular layer of such lower viscosity liquid thereby reducing the pressure drop in the conduit.
Patent CA-1341217-C (CA)
Inventor: BABIAK KEVEN ANTHONY
IPC: C12P17/02
Filed: 1989-08-30
Granted: 2001-04-24
Abstract: A process for irreversible regio- and stereoselective enzyme catalysed acylation of alcohols using enol esters as acylating reagents is disclosed. The present invention permits the selective modification of hydroxyl group(s) of chiral and meso alcohols, including sugars, organometallics, and glycosides. The enol freed upon transesterification rapidly tautomerizea to the corresponding volatile aldehyde or ketone thereby preventing the reverse reaction from occurring.
Patent CA-1332339-C (CA)
Inventor: WALTON JOHN N
IPC: B25B29/02
Filed: 1989-09-28
Granted: 1994-10-11
Abstract: ABSTRACT OF THE DISCLOSURE   A hydraulic bolt tensioner for tensioning a threaded bolt extending from a fixed component comprises a cylinder adapted to react against the component, a piston slidably mounted in the cylinder and having an axial bore therein through which the bolt extends, the piston reacting against a reaction member threaded on the bolt,  and a source of hydraulic fluid.  Defined within the cylinder are a first chamber the supply of fluid under pressure to which effects powered extension of the piston within the cylinder, and a second chamber the supply of fluid under pressure to which effects  powered retraction of  the piston within  the cylinder.