baber/WOPTO huggingface dataset:
Patent CA-1294436-C (CA)
Inventor: ROTH JAMES E
IPC: F24F13/20
Filed: 1987-05-20
Granted: 1992-01-21
Abstract: Abstract A three-member molded plastic housing for rooftop air condi-tioners, including base and intermediate members having molded por-tions which together provide component lower and upper compartment walls and blower scrolls.  The third member, an outer shroud, abuts sealedly along a roof ridge of the intermediate member to prevent recirculation within the shroud of condenser blower outlet air.          The base member has downwardly molded projections for facilitating positioning the unit over a roof opening and resisting sideward forces.
Patent CA-1308603-C (CA)
Title: Method for reducing the salt content in a foodstuff
Inventor: MARGGRANDER KURT
IPC: A23J3/00
Filed: 1987-06-04
Granted: 1992-10-13
Abstract: A b s t r a c t In a foodstuff, the salt content present as such therein and imparting the flavor thereto is reduced by up to 50 % by weight, without noticeable detriment to the flavor, by adding collagen hydrolysate.
Patent CA-1285588-C (CA)
Title: Bow-type tarp covering and tensioning system
Inventor: TUERK ROBERT P
IPC: B60J7/06
Filed: 1987-07-02
Granted: 1991-07-02
Abstract: BOW-TYPE TARP COVERING AND TENSIONING SYSTEM          ABSTRACT     A tarp cover system is disclosed for an open-topped truck or trailer container, including a tarp cover member adapted to overlie the container to close the chamber therein, the front end portion of the cover member being fastened with the external surface of the container front wall.  The rear end portion of the cover is fastened to the transverse portion of a generally U-shaped normally-vertical-ly-oriented inverted bow member that extends trans-versely above the container and includes downwardly directed leg portions that extend downwardly for pivotal connection with a longitudinally displace-able carrier arrangement, whereby the bow member is displaceable in opposite directions longitudinally of the container to cover and uncover the container chamber, respectively.  When the bow member is in the rear container-uncovering position, it may be pivoted rearwardly and downwardly about the lower ends of its leg portions toward a generally hori-zontal cover-tensioning position in which it is secured by tie lines.  When the bow member is in its forward container-covering position, it may be pivoted forwardly and downwardly toward a contain-er-unobstructing retracted position.
Patent CA-1300036-C (CA)
Title: Filtering apparatus and method
Inventor: WAKEMAN RICHARD J
IPC: B01D29/62
Filed: 1987-07-31
Granted: 1992-05-05
Abstract: A B S T R A C T     A filtering method and apparatus in which a chamber has an inlet and a filtrate outlet.  A perforated base is mounted within the chamber and a perforated piston is spaced therefrom, the base and the piston extending across the chamber between the inlet and outlet.  A mass of fibres fill the space between the base and the piston.  Means are provided to move the piston away from and towards the base, to enlarge and reduce the size of the space and a backwash of fluid through the space can take place in a direction away from the base and towards the inlet when the piston is moved back and forth during the backwash operation.
Patent CA-1269625-C (CA)
Title: Plastic pipe with integral end connection and method for joining
Inventor: LEE LEONARD E
IPC: F16L47/00
Filed: 1987-09-09
Granted: 1990-05-29
Abstract: PLASTIC PIPE WITH INTEGRAL END CONNECTION AND METHOD FOR JOINING ABSTRACT OF THE INVENTION Polyolefin pipe having an integral end connection. The pipe is fabricated with male and female end connections in order that the pipe may be press-fitted together with the interior and exterior forming a flush uninterrupted surface. One or more radial ribs and grooves are formed on the inter-ior of the female connection while a registering series of ribs and grooves are formed on the exterior of the male connection. The ends of the pipe are bevelled in order that the ends pressed together engage and by the slight resiliency of the polyolefin pipe construction permit the slight expan-sion and contraction of the ends to provide a locking interfit of the respective ribs and grooves in the two ends. The wall thicknesses of the end connection and width of the ribs and grooves are particularly dimensioned in order that the male end may be inserted to a complete lock position without premature engagement and that should failure occur, it be at the readily observable pipe wall rather than in internal rib. Sides of the ribs may also be bevelled to provide for dis-engagement of the pipe ends when pulled apart.
Patent CA-1288192-C (CA)
Title: Process for copolymerization of bicyclic amide acetals and polyisocyanates
Inventor: GOEL ANIL B
IPC: C08G18/30
Filed: 1987-09-29
Granted: 1991-08-27
Abstract: ABSTRACT OF THE DISCLOSURE      An improved process for the copolymerization of a mixture of a bicyclic amide acetal and a polyisocyanate comprising carrying out the copolymerization reaction at a temperature in the range of from about ambient temperature up to about 200°C. in the presence of a catalytic amount of a salt of a metal selected from the group consisting of bismuth, lead, mercury, copper, vanadium, cobalt, nickel, potassium, zinc and antimony is described.
Patent CA-1322488-C (CA)
Inventor: STIRBIS JAMES S
IPC: B41F17/22
Filed: 1987-10-05
Granted: 1993-09-28
Abstract: CAN DECORATING APPARATUS                    A B S T R A C T A decorator apparatus and methods for applying an ink image to cylindrical can body members comprising multiple station ink supply and transfer apparatus for transferring ink from an ink fountain to a blanket wheel through a plate cylinder with ink image registration adjustment apparatus and axial and circumferential tightness control apparatus operatively associated with each plate cylinder and each ink supply and transfer apparatus.
Patent CA-1279493-C (CA)
Title: Refrigeration cabinet construction
Inventor: BENFORD ARTHUR E
IPC: F25D23/08
Filed: 1987-12-03
Granted: 1991-01-29
Abstract: "REFRIGERATOR CABINET CONSTRUCTION"               ABSTRACT OF THE DISCLOSURE A refrigeration apparatus cabinet construction wherein foamed insulation is formed in situ between an outer metal cabinet shell and an inner synthetic resin liner.  The liner is provided,  before thermoforming thereof,  with an outer bilayer film having an inner portion bonded to the liner, with a reduced strength of approximately 3 to 7 ounces per inch of width.  The film includes an outer portion having a firm bond with the urethane foam.
Patent CA-1307653-C (CA)
Title: Apparatus for recovering elemental sulphur
Inventor: MCDOUGALL DAVID W
IPC: B01D53/86
Filed: 1988-02-25
Granted: 1992-09-22
Abstract: 2720- 02.5 ROGERS, BERESKIN & PARR                       C A N A D A     Title:  APPARATUS FOR RECOVERING           ELEMENTAL SULPHUR                Inventor: DAVID W. McDOUGALL                     ABSTRACT OF THE DISCLOSURE     A  piping  arrangement for  two  or  three  Claus catalytic converters and condenser sets used for recovering sulphur from gas streams containing hydrogen sulphide. One of the converters is operated at a sub-dewpoint temperature while the other(s) is(are) operated at a higher temperature for regenerating the catalyst.  The piping arrangement in-cludes two four-way switching valves that allow an influent gas stream to be switched between the two converters without leaving stagnant gas in the piping.
Patent CA-1326027-C (CA)
Title: N-benzhydryl-substituted heterocyclic derivatives, their preparation and their use
Inventor: HIRAI KOICHI
IPC: C07D401/02
Filed: 1988-03-18
Granted: 1994-01-11
Abstract: ABSTRACT OF THE DISCLOSURE     Compounds of formula (I):                 A - M - B          (I) (in which: M represents a saturated heterocyclic group having from 5 to 7 ring atoms of which 2 are nitrogen atoms, said group being unsubstituted or being substituted at any of its carbon atoms by C1 - C6 alkyl and/or oxo substituents; A represents a halo-substituted benzhydryl substituent; and B represents certain specific substituted alkyl groups) and salts thereof are valuable for the treatment and prophylaxis of disorders arising from circulatory problems, especially those affecting the brain.  They may be prepared by reacting a compound of formula A - M - H with a halo or acyloxy derivative corresponding to the alkyl substituent B which it is desired to introduce.
Patent CA-1314292-C (CA)
Title: Process for the carbonylation of propylene
Inventor: PASCOE RALPH F
IPC: C07C53/42
Filed: 1988-04-14
Granted: 1993-03-09
Abstract: ABSTRACT OF THE DISCLOSURE      A process for the improvement in the utilization of carbon monoxide and for the utilization of propylene having varying grades of purity in the carbonylation of propylene with carbon monoxide and hydrogen fluoride to form isobutyryl fluoride in a carbonylation reactor whereby the effluent from the reactor is (a) passed into a first phase separator where the effluent is separated into an overhead gaseous stream and a bottom liquid stream which contains unreacted carbon monoxide, (b) the bottom liquid stream from (a) is passed into a second reactor where it is contacted with a gaseous stream which contains propylene and allowing essentially all of the propylene to react, (c) the effluent from the second reactor is passed to a second phase separator where overhead gases are separated from liquid bottoms, (d) the liquid bottoms from the second phase separator are passed to a degassing pot where overhead gases are removed and the liquid bottoms stream which is essentially isobutyryl fluoride is taken to recovery, (e) the overhead gases from (d) are optionally mixed with inert gases and the stream is recycled to the hydrogen fluoride fed to the carbonylation reactor and/or recycled back to the gaseous stream in (b), (f) the gases from overhead stream in (a) are passed to a compressor and then to the recycle gaseous stream from (e), (g) the overhead gases from (e) are divided into a first portion which is sent to recycle as in (e) and a second portion which is sent to a refrigeration unit where said second portion into a bottom stream of less volatile materials and an overhead stream of volatile materials, a portion of the bottoms stream is added to the isobutyryl fluoride stream for recovery in (d), and the overhead, less volatile stream from (g) is sent to waste disposal is described.
Patent CA-1296933-C (CA)
Title: Focusing system for camera apparatus
Inventor: BIBER CONRAD H
IPC: H04N5/232
Filed: 1988-04-21
Granted: 1992-03-10
Abstract: Title:  FOCUSING SYSTEM FOR CAMERA APPARATUS    ABSTRACT OF THE DISCLOSURE An automatic focusing system for a camera apparatus utilizes a two-dimensional photosensitive array to determine image sharpness as a function of the image information sensed in both the rows and columns of individual photosensitive pixel elements.  A transfer function may be imposed upon the electronic information signal derived from the two-dimensional photoresponsive array or, alternatively, upon the incident scene light to the two-dimensional photoresponsive array to centerweight the focus condition determining signal where the principle subject will be most likely framed.
Patent CA-1294022-C (CA)
Inventor: MCKEE FOUNT E
IPC: E21B47/00
Filed: 1988-04-27
Granted: 1992-01-07
Abstract: METHOD AND APPARATUS FOR CONTROLLING         A WELL PUMPING UNIT                     Abstract of the Disclosure A method of maintaining a substantially constant amount of filling of a liquid well pump actuated by a polished rod which is reciprocated by a prime mover.  The load and position of the polished rod is periodically measured to determine the amount of filling of the pump.  The change in the amount of filling of the pump of one pumping cycle relative to a previous pumping cycle is compared and the speed of actuation of the pump is varied as a function of the change in the amount of filling of the pump to maintain a substantially constant amount of filling of the pump.  The pump is continuously actuated but the speed is varied for preventing the well from being pumped dry.
Patent CA-1299210-C (CA)
Title: Apparatus for stuffing at least one insert into printed products
Inventor: INFANGER RUDOLF
IPC: B65H39/065
Filed: 1988-07-29
Granted: 1992-04-21
Abstract: Attorney's Docket No. 7934 INVENTOR:  RUDOLF INFANGER            INVENTION: APPARATUS FOR STUFFING AT LEAST ONE INSERT INTO            PRINTED PRODUCTS     ABSTRACT OF THE DISCLOSURE     A displacement device is arranged at an input section of a stuffing apparatus for stuffing at least one insert into folded printed products.  The displacement device mutually displaces relative to one another two main printed products which have been infed in superposed or mutually reposing relationship upon one another in a predeterminate product conveying direction before these two main printed products are engaged by a transport device and further delivered to an infeed section of the stuffing apparatus.          For this purpose, one printed product is fixedly retained by a clamping element controlled by a cam whereas the other printed product is displaced by a displacement or slide element in the product conveying direction.  The displacement or slide element is  actuated by a drive  arrangement comprising an entrainment lever upon which acts a stop or abutment of the transport device during its return motion.          The drive arrangement converts the return movement of the transport  device  into  a  displacement  motion  of  the displacement or slide element in the product conveying direction.     WWK:sm:sncd7  -2-
Patent CA-1325870-C (CA)
Title: Sealant product, laminate thereof, and pneumatic tire  constructed therewith
Inventor: HONG SUNG-HEE
IPC: B60C1/00
Filed: 1988-08-01
Granted: 1994-01-11
Abstract: SEALANT PRODUCT, LAMINATE THEREOF, AND PNEUMATIC TIRE CONSTRUCTED THEREWITH                  ABSTRACT OF THE DISCLOSURE     A carcass for a self-sealing pneumatic tire is con-structed by starting with an extruded thin flat strip of puncture sealant both surfaces of which are detackified. The strip is place on a building drum and its upper sur-face is wiped clean so that an inner liner may be adhered to it. Thereafter, the carcass is conventionally completed with superimposed successive layers of belts, and tread along with bead rings, etc. The carcass is then cured in a conventional curing press so that the sealant is cured by contact with the curing bladder. The curing sealant is not restrained in any way, but does not flow. Alternatively, a laminate of the sealant is formed with the inner liner, with only the exposed surface of the sealant detackified. so that it adheres neither to the building drum nor to the curing bladder. The detackifier remains on the sealant. The recipe for this effective sealant product requires a ratio of high molecular weight elastomer to low molecul-ar weight elastomer greater than 1; also, that there be at least as much, by weight, processing aid as there is high mol wt elastomer. Such a recipe has a room temperature peak Mooney viscosity above 70, and, after curing, a peak Mooney viscosity at 150°F in the range above 15 but below 30. A combination of homogenizer and tackifier facilitates maintaining the necessary viscosity of the uncured sealant recipe. The tire provides excellent self-sealing results.
Patent CA-1293072-C (CA)
Title: Apparatus for connecting and disconnecting a ringing signal to a called subscriber
Inventor: LOFMARK BENGT G
IPC: H04M3/02
Filed: 1988-10-03
Granted: 1991-12-10
Abstract: ABSTRACT OF THE DISCLOSURE   The present invention relates to an apparatus for sending a ringing signal to a called subscriber. Connection and disconnection of the signal takes place with the aid of the apparatus. The problem solved by the invention is that of current transients being generated on disconnection of the signal, these transients causing a disturbing clicking noise in the engaged telephone of a subscriber in a neighbouring channel. The apparatus solving the problem includes a two-way switching circuit connected in series with an AC voltage generator, said circuit disconnecting the AC voltage to a bell when the current through the bell has its zero crossing, and a discharge circuit for discharging the bell before it is connected via a relay to a SLIC circuit, such that the voltage across the bell is within the SLIC circuit voltage interval when the relay connects the bell to the SLIC circuit, which occurs when said signal is disconnected. With this arrangement an overvoltage protector connected to the SLIC circuit is not triggered, and the circuit is not subjected to any current transient which can cause disturbing clicking noises.
Patent CA-1336522-C (CA)
Inventor: DISHONG DENNIS M
IPC: H04M11/00
Filed: 1988-11-14
Granted: 1995-08-01
Abstract: Nitrogen-containing  esters  of  a  carboxy-containing interpolymer,  wherein  the  interpolymer  has  an  inherent viscosity ranging from about 0.05 to 0.30 are disclosed. The esters are useful as additives in functional fluids including transmission fluids (both automatic and manual), hydraulic  fluids  and  gear  fluids.    The  transmission, hydraulic and gear fluids containing the esters exhibit improved shear stability while maintaining desired high and low temperature viscosity characteristics.
Patent CA-1327347-C (CA)
Inventor: CHANG MAIN
IPC: C08F2/34
Filed: 1988-11-28
Granted: 1994-03-01
Abstract: ABSTRACT OF THE DISCLOSURE        This invention relates to a process for preparing a supported metallocene alumoxane catalyst for use in the gas phase polymerization of olefins.  The invention particularly relates to the use of silica gel containing from about 6 to about 10 percent by weight adsorbed water as the catalyst support material.  It has been found that such silica gel may be safely added to an aluminum trialkyl solution to form by direct reaction with the adsorbed water content of the silica gel catalyst support material the alumoxane component of the catalyst system.  An alumoxane coated silica gel is formed to which a metallocene may be added and the resulting material dried to free flowing powder.  The dry free flowing powder may then be used as a supported metallocene alumoxane catalyst complex for gas phase polymerization of olefins.
Patent CA-1310285-C (CA)
Title: Fast fill hydraulic clutch
Inventor: SMEMO ALFRED S
IPC: F16D25/12
Filed: 1988-12-07
Granted: 1992-11-17
Abstract: FAST FILL HYDRAULIC CLUTCH                   Abstract of the Disclosure A hydraulic clutch assembly having a hydraulic circuit that is filled with oil even when the clutch is deactivated,  The piston of the clutch is provided with a sealing assembly which bifrucates the cylinder into a filled and unfilled portion.  The sealing assembly is located so that the centrifugal head attributable to the hydraulic fluid does not exceed the spring force of the biasing springs of the clutch piston.  The sealing assembly comprises a circular land that is machined into the piston face.
Patent CA-1292391-C (CA)
Title: Deodorization and cleaning of medium temperature wet off-gases derived from burning of wet waste sludge
Inventor: ALBERTSON ORRIS E
IPC: B01D53/38
Filed: 1989-01-13
Granted: 1991-11-26
Abstract: ABSTRACT OF THE DISCLOSURE     Medium temperature (500°F - 1100°F) wet off-gases from the final drying zone of counterflow incineration of waste sludge are scrubbed and cooled before heating to final high temperature in an after burner and the resulting hot dry gases are used to preheat the scrubbed and cooled gases prior to entry of said gases into the afterburner.
Patent CA-1323085-C (CA)
Inventor: MOY MICHAEL E
IPC: G01J1/32
Filed: 1989-01-24
Granted: 1993-10-12
Abstract: VISION SYSTEM ILLUMINATION CALIBRATION APPARATUS        ABSTRACT    The  vision  system  illumination  calibration apparatus uses a pair of lamps, located one on either side of a vision element to illuminate a set of machine-readable characters  imprinted in bar code format on a label affixed to a calibration target plate.  The required level of illumination is set by the use of a predetermined calibration target label. The  vision  system  is  positioned  opposite  this calibration target label and the illumination level is varied in sequential steps.   Control software identifies a range of illumination levels in which the calibration target label is accurately read by the vision element and sets the level of illumination of the lamps in this range of values.
Patent CA-1313663-C (CA)
Title: Benzoxazinone compounds and herbicidal composition containing the same
Inventor: HIRAI KENJI
IPC: A01N43/84
Filed: 1989-02-02
Granted: 1993-02-16
Abstract: BENZOXANZINONE COMPOUNDS AND HERBICIDAL    COMPOSITION CONTAINING THE SAME            ABSTRACT OF THE DISCLOSURE       A benzoxazinone compound represented by the formula (I):                                             (I) wherein R1 represents a hydrogen atom or an alkyl group, and R2 represents a hydrogen atom, an alkyl group, a cyanoalkyl group, an alkenyl group, an alkynyl group or an aralkyl group; a process for preparing the same; and a herbicidal composition comprising the benzoxazinone compound as an active component are disclosed.  The above benzoxazinone compounds exhibit a high selectivity for useful crop plants and a strong herbicidal activity with respect to various noxious weeds.
Patent CA-1302238-C (CA)
Title: Liner setting assembly
Inventor: DUNCAN STEWART M
IPC: E21B43/10
Filed: 1989-02-13
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE    A liner setting assembly is useful in setting a liner into a casing string secured in a borehole of a well.  The liner setting assembly includes a cone and a cage.  The cone enables slidably fitting over the liner, the cone having grips with an oblique notched face forming an engaging surface.  The cage receives the cone and includes a second set of grips having oblique notched faces.  The cone and cage assembly is secured to the casing string by the grips.  Since the cone has a sliding fit in relation to the liner, the operator can reciprocate and rotate the liner even after the cage and cone assembly has been securely engaged with the casing  string  in  the  borehole,  thereby  enabling  a  positive indication of the correct set position prior to the cement bonding of the liner to the wall of the well.
Patent CA-1334546-C (CA)
Title: Aqueous surface coating material prepared by emulsion  polymerisation
Inventor: TONGE CHRISTOPHER J
IPC: C08F2/22
Filed: 1989-04-12
Granted: 1995-02-21
Abstract: A water-based emulsion paint, for example, is formulated with high refractive index opacifying pigment particles, dispersant, and polymer particles in which substantially all of the pigment particles (40) are disjuncted from one another and contained within an attached cluster of polymer particles (41) or have appendant polymer particles to give opacifying units having a nodular outline.  Preferably micro-voids are trapped between particles and the dispersant is less than 1% of the pigment by weight.
Patent CA-1341093-C (CA)
Title: Method and composition for preventing surgical adhesions
Inventor: YAACOBI YOSEPH
IPC: A61K31/715
Filed: 1989-05-15
Granted: 2000-09-05
Abstract: An improved method and composition for preventing adhesions during surgery. Tissue surfaces and surgical articles involved in the surgery are coated with a solution of a hydrophilic, polymeric material prior to manipulation of the tissue during surgery. The composition comprises a solution of a polymeric material having a molecular weight of about 500,000 or above having a concentration of from about 0.01 to about 15%, by weight.
Patent CA-1334488-C (CA)
Inventor: REVANKAR GOPAL S
IPC: C22C30/00
Filed: 1989-06-12
Granted: 1995-02-21
Abstract: A apex seal is formed by cold pressing and sintering a mixture of Clevite and tungsten carbide powders to form a seal wherein harder rounded carbide particles are distributed within a softer matrix.