baber/WOPTO huggingface dataset:
Patent CA-2028458-A1 (CA)
Title: Azetidin-2-one, 1,3,4-trisubstituted derivatives, useful intermediates for the beta-lactam synthesis, and asymetric synthesis process thereof
Inventor: GATEAU-OLESKER ALICE
IPC: C07D405/14
Filed: 1990-10-24
Abstract: Compounds of formula I, consisting of the combination of formulae IA and IB: <IMAGE>  in which:   R1 denotes a hydrogen atom, a halogen atom, an alkyl radical, a trifluoromethyl radical, an alkoxy radical, a phenyl or benzyl radical (which are optionally substituted), a benzyloxy radical, a cyano radical, an alkoxycarbonyl radical, a carboxyl radical or an alkylamino radical, R2, different from R1, denotes a hydrogen atom, a halogen atom, an alkyl radical, a trifluoromethyl radical, an alkoxy radical, a phenyl or benzyl radical (which are optionally substituted), a benzyloxy radical, a cyano radical, an alkoxycarbonyl radical, a carboxyl radical or an alkylamino radical, each R3 denotes an alkyl radical or the two R3s form together and with the atoms of the dithioacetal functional group to which they are attached a 5- to 7-membered ring, R4 denotes an optionally substituted phenyl radical, a naphthyl radical or a furyl radical, each of R5 and R6, which are identical or different, denotes a hydrogen atom, an alkyl radical or an aryl radical (optionally substituted), and each R7 denotes a methyl radical or the two R7s form together and with the carbon atom to which they are attached a cyclohexane nucleus or a cyclopentane nucleus.   The compounds of formula IA and IB are intermediates which are useful for the preparation of compounds of formulae XA and XB: Original abstract incomplete.
Patent CA-2028630-A1 (CA)
Title: Jeweler's hammer bit
Inventor: CHIA MEANG
IPC: B25D5/00
Filed: 1990-10-26
Abstract: JEWELER'S HAMMER BIT            ABSTRACT OF THE DISCLOSURE        The invention is a diamond-tipped bit that is used with a jeweler's hammer.   The bit has a shaft portion that has formed on one end a threaded portion for  screwing  the  bit  into  the  threaded  receiving portion of a jeweler's hammer.  On the other end of the shaft is a bore.  A diamond is placed within the bore so that the rear flat portion of the diamond is flush against the rear surface of the bore.  The annular rim of  the bore  clasps the diamond  around  its  entire circumference against the rear surface,  leaving the working portion of the diamond protruding from the shaft and the annular rim.    The invention can be an integral piece or may be constructed to be disassembled so that the diamond can be removed and replaced.
Patent CA-2029307-A1 (CA)
Inventor: KOHN UWE
IPC: B31B70/00
Filed: 1990-11-05
Abstract: A device for the transverse cutting of webs of thermoplastic plastic and more particularly webs of tubular film for making bags, consists of a pair of feed rolls advancing the web in steps equal to the length to which the web is cut, a transverse cutting knife arranged in parallelism to a transverse welding device and two vertically moving rails arranged parallel to each other, of which the rail which is to the fore in the direction of feed is in the form of a gripping rail and grips the leaving web end, fed between the jaws of the transverse welding device, on a support and of which the rail placed between the kniofe and the gripping rail acing as a holding rail tautens the web section gripped between the pair of feed rolls and the gripping rail, before the knife severs the web. In order to produce a tension ensuring a good cut taking up and slack in the web, after the advance of the web (3) the pair of feed rolls (1 and 2) is subject to a movement retracting the web during a time intervall which comes before the formation of the transverse seam. (Single figure).
Patent CA-2030573-A1 (CA)
IPC: C09K8/68
Filed: 1990-11-22
Abstract: ABSTRACT      The production of oil or gas from a subterranean formation is enhance by injecting into the formation, such as in acidized fracturing, an aqueous fluid containing as a viscosifier a crosslinked vinylamine polymer.  Acidizing fluids are provided containing HCl and a viscosifying amount of a gel of the crosslinked polymer, preferably poly(vinylamin) crosslinked with a dissocyanate, a polyepoxide or epichlorohydrin.
Patent CA-2032196-A1 (CA)
Title: Vehicle battery having integral safety switch
Inventor: CAMERON ROBERT W
IPC: H01M50/583
Filed: 1990-12-13
Abstract: ABSTRACT OF THE DISCLOSURE     A battery having an integral emergency circuit breaker for preventing the transmission of electrical current from the battery to a vehicle in which the battery is connected in an electric circuit.  The battery is connected in the circuit so its negative terminal is grounded, and its positive terminal is ungrounded, under normal conditions.  The battery has an impact resistant case for shielding the contents thereof from electrical contact with the structure of the vehicle in the event of an accident.  A fuse link is provided for interrupting the flow of electrical current from the positive pole of the charge storage section to the positive terminal of the battery in response to an increase in the electrical current flowing through the fuse link. The first end of the fuse link is connected to the positive pole of the charge storage section and the second end of the fuse link is connected to the exposed positive terminal.  The fuse link permits the flow of current therethrough to the positive battery terminal under normal conditions. In response to perturbation of the vehicle by an accident, a switch connects the second end of the fuse link to the negative pole of the storage section so as to increase the flow of current therethrough, causing the fuse link blow and thereby interrupting the circuit.
Patent CA-2034498-A1 (CA)
Title: Solid tooth-paste compositions
Inventor: DANA DOMINIQUE
IPC: A61K8/69
Filed: 1990-06-20
Abstract: 2034498 9015591 PCTABS00102 Composition dentifrice présentée sous forme solide, à usage humain et animal, caractérisée en ce qu'elle comprend: au moins un composant possédant une activité antiséptique et/ou anti-microbienne, au moins un composant exerçant une action abrasive, au moins un composant exerçant une action retard sur le dépôt de tartre, au moins un composant possédant la propriété de s'attaquer à la plaque dentaire, et ayant éventuellement des propriétés anti-microbiennes, et au moins un composé constituant une source de fluor.
Patent CA-2036265-A1 (CA)
Title: Method for document administration utilizing iconic representations within a data processing system
Inventor: WANG DIANA S
IPC: G06F3/048
Filed: 1991-02-05
Abstract: ABSTRACT OF THE DISCLOSURE       METHOD FOR DOCUMENT ADMINISTRATION UTILIZING ICONIC  REPRESENTATIONS WITHIN A DATA PROCESSING SYSTEM           A method for document administration within a data   processing   system   which   utilizes    iconic representations.    A  bit   image   or   graphic   iconic representation is created for selected textual documents and stored as a bit image or graphic object at a selected memory location within the data processing system.   A reference  or pointer  to  the  memory  location  of  each iconic representation is then stored within a descriptive profile associated with each document.  Thereafter,  the textual document may be transferred to a user location where graphic or bit image objects may or may not be supported.   Upon  an  examination  of  the  descriptive profile,  a subsequent user supporting graphic or image objects may elect to retrieve the iconic representation by utilizing the reference stored therein.  By separately storing  an  iconic  representation  for  each  textual document,  such  documents  may  be  freely  interchanged throughout a distributed data processing system whether or not individual users within the system support graphic or image objects. In this manner, those users supporting graphic  or  image  objects  may  utilize  the  textual reference  stored  within  each  descriptive  profile  to retrieve an iconic representation for local utilization.
Patent CA-2037099-A1 (CA)
Title: Crystalline salt of 4-(di-n-propyl) amino-6-aminocarbonyl-1,3,4,5-tetrahydrobenz ¢cd! indole
Inventor: KRESS THOMAS J
IPC: A61K31/40
Filed: 1991-02-26
Abstract: 4-(Di-n-propyl)amino-6-aminocarbonyl-1,3,4,5-tetrahydrobenz[cd]indole hippurate and its method of preparation and use are provided.
Patent CA-2038136-A1 (CA)
Title: Trailer gravel guard
Inventor: MCKAY JOHN G
IPC: B62D63/08
Filed: 1991-03-13
Abstract: CANADA              TITLE:  TRAILER GRAVEL GUARD         INVENTOR:  JOHN GORDON MCKAY                          ABSTRACT         A trailer guard for a trailer having a tongue includes a center section having means for mounting the trailer guard on the trailer tongue. A pair of flaps mounted on swing arms extend transversely from the center section and are pivotally mounted on the center section for rearward rotation. A spring at the pivot urges each of the flaps to full transverse extension. The trailer guard protects the trailer from roadway materials.
Patent CA-2038137-A1 (CA)
Title: Adjustable spiral slitter for hot dogs
Inventor: GOODMAN MORRIS G
IPC: B26B27/00
Filed: 1991-03-13
Abstract: ABSTRACT OF THE DISCLOSURE An adjustable spiral slitter for hot dogs which includes a pair of generally semi-cylindrical or semi-circular members  hingedly  connected  at  one  end  and adjustably connected at the other end with the adjustably connected  ends  being  separable  to  enable  the  semi-circular members to be pivoted between an open and closed position.  One of the semi-circular members includes a serrated blade mounted therein with the serrated edge of the blade being oriented in an inclined relation to the center axis of the semi-circular members when they are in closed position.   The semi-circular members, when in closed position, form an annular member with the blade edge generally paralleling and spaced laterally from a diameter of the annular member extending between the pivotal connection and the adjustable connection between the two semi-circular members.  The size of the interior of  the  annular member  is  adjustable  by moving  the adjustably connected ends to different adjusted positions to enable a hot dog having different circumferential sizes to be inserted through the slitter and  rotated simultaneously  with the  serrated  edge  of  the  blade forming a spiral slit in the peripheral casing or surface of the hot dog with the slit extending partially into the ground meat within the hot dog casing.  The hot dog can then be cooked in various conventional manners in a pot, pan  or  grill  with  the  slit  enhancing  the  cooking operation by eliminating the tendency of the hot dog to curl, enhancing the flavor and appearance of the hot dog and enabling the hot dog to be more easily inserted into a hot dog roll or bun.
Patent CA-2040518-A1 (CA)
Inventor: BLACKLOCK THOMAS J
IPC: C07D495/04
Filed: 1991-04-15
Abstract: TITLE OF THE INVENTION SYNTHESIS OF (S)-3-(THIEN-2-YLTHIO)BUTYRIC ACID ANALOGS            ABSTRACT OF THE DISCLOSURE   (S)-3-(thien-2-ylthio)butyric acid analogs are intermediates in the synthesis of the chiral (S,S)-5,6-dihydro-4-ethylamino-6-methyl-4H-thieno [2.3-b]thiopyran-2-sulfonamide-7,7-dioxide and analogs thereof, topically effective carbonic anhydrase inhibitors useful in the treatment of ocular hypertension and glaucoma. They are prepared by condensation of 2-mercaptothiophene and (R)-(+)-.beta.-methyl-.beta.-propiolactone or an analog thereof.
Patent CA-2045026-A1 (CA)
Title: Dynamic signal modification for achieving interference reduction in concurrently transmitted signals
Inventor: GANS M J
IPC: H04N7/00
Filed: 1991-06-19
Abstract: Apparatus for reducing interference in a first signal caused by a second signal. Before the signals are transmitted, the first signal is tested to determine how much interference can be tolerated. During portions of the first signal which can tolerate a large amount of interference, the amplitude of the second signal is increased. During portions of the first signal that can only tolerate a small amount of interference, the amplitude of the second signal is decreased. The average amplitude of the second signal is large enough to provide an acceptable bit error rate or signal to noise ratio, yet small enough not to substantially corrupt the first signal. In one embodiment, the technique is employed to allow transmission of additional data on a television channel.
Patent CA-2045827-A1 (CA)
Title: Branch prediction unit for high-performance processor
Inventor: BROWN JOHN F III
IPC: G06F9/38
Filed: 1991-06-27
Abstract: BRANCH PREDICTION UNIT FOR HIGH-PERFORMANCE PROCESSOR                  ABSTRACT OF THE DISCLOSURE     A pipelined CPU executing instructions of variable length, and referencing memory using various data widths. Macroinstruction pipelining is employed (instead of microinstruction pipelining), with queueing between units of the CPU to allow flexibility in instruction execution times.  A wide bandwidth is available for memory access; fetching 64-bit data blocks on each cycle.  A hierarchical cache arrangement has an improved method of cache set selection, increasing the likelihood of a cache hit.  A writeback cache is used (instead of writethrough) and writeback is allowed to proceed even though other accesses are suppressed due to queues being full.  A branch prediction method employs a branch history table which records the taken vs. not-taken history of branch opcodes recently used, and uses an empirical algorithm to predict which way the next occurrence of this branch will go, based upon the history table.  A floating point processor function is integrated on-chip, with enhanced speed due to a bypass technique; a trial mini-rounding is done on low-order bits of the result, and if correct, the last stage of the floating point processor can be bypassed, saving one cycle of latency.  For CAL type instructions, a method for determining which registers need to be saved is executed in a minimum number of cycles, examining groups of register mask bits at one time.  Internal processor registers are accessed with short (byte width) addresses instead of full physical addresses as used for memory and I/O references, but off-chip processor registers are memory-mapped and accessed by the same busses using the same controls as the memory and I/O.  If a non-recoverable error detected by ECC     circuits in the cache, an error transition mode is entered wherein the cache operates under limited access rules, allowing a maximum of access by the system for data blocks owned by the cache, but yet minimizing changes to the cache data so that diagnostics may be run. Separate queues are provided for the return data from memory and cache invalidates, yet the order or bus transactions is maintained by a pointer arrangement.  The bus protocol used by the CPU to communicate with the system bus is of the pended type, with transactions on the bus identified by an ID field specifying the originator, and arbitration for bus grant goes one simultaneously with address/data transactions on the bus.            H:\DIGW\071\033.CLS
Patent CA-2046718-A1 (CA)
Title: Adjustable grip handles for tools, sporting equipment, and the like
Inventor: THIRY STEVEN A
IPC: A63B49/08
Filed: 1991-07-10
Abstract: Docket No. 0879IRTh ABSTRACT OF THE DISCLOSURE      An adjustable grip handle for tools, sporting equipment, and the like is provided using a handle base, a handle augmenter, attachment provisions to connect the handle augmenter to the handle base and retaining provisions to retain the augmenter on the handle base.  Handle grip size is adjusted by either selecting from an assortment of handle augmenters, or by positioning a common handle augmenter in one of several positions on the handle base, depending on the particular embodiment employed.
Patent CA-2046887-A1 (CA)
Inventor: BATE FREDERICK DOUGLAS C
IPC: B65B69/00
Filed: 1990-02-16
Abstract: ABSTRACT     Packaging of articles or sets of articles uses both of helical wrapping material and incorporated longitudinal material.  Helical wrapping station in a gap between infeed and outfeed conveyors passes helical wrapping material transversely of the direction of travel of the article.  The longitudinal band(s) of material can serve for positively transporting the articles across the gap.
Patent CA-2048684-A1 (CA)
Title: Antiallergy agents
Inventor: COOPER KELVIN
IPC: A61P29/00
Filed: 1990-03-14
Abstract: Platelet activating factor antagonists of formula (I), in which R2 is optionally substituted phenyl, R1 is H, alkyl or arylalkyl, Het is an optionally substituted N-containing heterocyclic group optionally fused to a phenyl or a further heterocyclic ring, and Z completes an optionally substituted carbocyclic or heterocyclic ring having a carbonyl group attached to the 5-position of the dihydropyridine ring. The compounds are useful for treating allergic and inflammatory conditions.
Patent CA-2050601-A1 (CA)
Title: Production in bacteria and yeast of hemoglobin and analogues thereof
Inventor: HOFFMAN STEPHEN J
IPC: C12N15/09
Filed: 1990-05-10
Abstract: A method of producing a hemoglobin-like protein wherein an alpha globin-like polypeptide and a beta globin-like polypeptide are each expressed in transformed non-erythrocyte cells such as bacterial or yeast cells, the method comprising expressing the alpha and beta globin-like polypeptide in the same cell in such manner that the alpha and beta globin-like polypeptides are assembled and combined with heme so as to intracellularly produce a biologically functional hemoglobin-like protein in soluble, recoverable form. <IMAGE>
Patent CA-2053244-A1 (CA)
Title: Process not using chlorate or nitrate for the production of nickel and manganese containing zinc phosphate films
Inventor: RIESOP JOERG
IPC: C23C22/18
Filed: 1990-04-14
Abstract: ABSTRACT      The invention concerns a process, not using chlorate or nitrite, for the production of nickel and manganese con-taining zinc phosphate films on steel, zinc, and/or zinc alloys by spraying, spray-dipping, and/or dipping, using an aqueous solution. An organic oxidizing agent is added, primarily to depolarize the nascent hydrogen produced.
Patent CA-2055812-A1 (CA)
Title: Method of stabilizing enzyme conjugates
Inventor: SKOLD CARL N
IPC: C12N15/02
Filed: 1991-11-19
Abstract: ABSTRACT OF THE DISCLOSURE       A method is disclosed for stabilizing a conjugate of an enzyme and a member of a specific binding pair (enzyme conjugate).  The method comprises the step of combining the enzyme conjugate with an effective amount of an antibody for the enzyme where the antibody does not substantially inhibit the activity of the enzyme.  The invention has application to assays for the determination of an analyte wherein enzyme conjugates are employed.  The improvement comprises employing as a reagent in the assay an immune complex of an enzyme conjugate and an antibody for the enzyme where the antibody does not substantially inhibit the activity of the enzyme.  Compositions comprising such an immune complex and kits comprising such an immune complex in packaged combination with other assay reagents are also disclosed. 3380.01                                     27810-FF
Patent CA-2056690-A1 (CA)
Inventor: SAGAWA MASATO
IPC: B22F3/12
Filed: 1991-11-29
Abstract: In the die-pressing method of the magnet powder and fine powder, the powder is filled at a high density in a rubber mold (10), is occasionally preliminarily magnetized (4a) in the rubber mold and is then compacted under magnetic field or without magnetic field. Cracking of the magnet green compact is prevented. A sintered compact having density of 90% or more can be produced using the fine powder.
Patent CA-2057044-A1 (CA)
Title: Bio-osmotic gel for implant protheses
Inventor: ERSEK ROBERT A
IPC: A61L27/00
Filed: 1991-03-20
Abstract: An improved bio-osmotic fluid for filling implant lumens consisting substantially of an amount of a bio-compatible organ-ic polymer and a solution of bio-compatible salt is disclosed which exhibits osmotic qualities closely paralleling that of human body serum and improved radiolucency with respect to silicone oil and saline.  The present bio-osmotic fluid can be used in plas-tic and reconstructive surgery and, more particularly, to a bio-compatible excretable gel within a flexible prosthesis membrane.
Patent CA-2057777-A1 (CA)
Title: Cephalosporin derivatives
Inventor: ALBRECHT HARRY A
IPC: A61P31/04
Filed: 1991-12-17
Abstract: Abstract Cephalosporin derivatives of the general formula   in which R3 is a group of the formula   (a) R60 and R65 are hydrogen or lower alkyl, R15-R19 are each independently hydrogen, halogen or hydroxy, n is zero or 1, R4 and R5 are each hydrogen, halogen, lower alkyl, lower alkoxy or amino, R7 is hydrogen or lower alkyl and R8 is lower alkyl, halo-lower alkyl, C3-C7 cycloalkyl or mono-, di- or trihalophenyl, and Z is N or C-R9, where R9 is hydrogen, halogen, lower alkyl or lower alkoxy; and, when R4 is fluoro, R5 and R7 are hydrogen, R8 is cyclopropyl and Z is C-H, R3 can also be one of the groups               (b)                (c) in which R61 and R66 are hydrogen or methyl, R15-R19 are as above and R90 is hydrogen, hydroxy, carboxy, amino or [[4-(lower alkyl)-2,3-dioxo-1-piperazinyl]carbonyl]amino; pharmaceutically acceptable acid or base addition salts thereof, hydrates of compounds of formula I and hydrates of such salts.          The products have antibacterial activity.
Patent CA-2058440-A1 (CA)
Inventor: KOESTER RITA
IPC: C09K23/42
Filed: 1990-05-28
Abstract: The use of mixed hydroxyethers of the general formula I      R10-(CH2CH20)x-CH2-CH(OH)R2            (I) in which R1 denotes an alkyl group having 1 to 10 carbon atoms, R2 denotes an alkyl group having 8 to 20 carbon atoms, and x denotes a number in range from 1 to 20, as auxiliaries for the dehydration of water-containing finely divided solids, gives solids having a low water content without foaming in the water separated therefrom.
Patent CA-2058825-A1 (CA)
Title: Oxides and the production thereof
Inventor: DECELLES GUY
IPC: C09C1/36
Filed: 1992-01-06
Abstract: Titanium dioxide carries an ester or a partial ester of an hydroxy compound containing 1 to 6 OH groups and an aliphatic saturated C10 to C22 monocarboxylic acid. The product is easily dispersible in plastics compositions, particularly masterbatches. The titanium dioxide can also be coated with one or more hydrous oxides.       The product is prepared by milling the titanium dioxide in a fluid energy mill in the presence of the ester or partial ester.
Patent CA-2059339-A1 (CA)
Inventor: PARSONS KEVIN L
IPC: F41B15/02
Filed: 1992-01-14
Abstract: An expandable baton is constructed of heat treatable alloy steel and is formed according to a method which provides both ease of workability of the component materials and strength for the resultant baton.  The disclosed method comprises the steps of first forming the sections from heat treatable alloy steel, then annealing the baton components to soften them, then forming the components into the desired shapes, and finally hardening the components. The resulting baton provides the strength and reliability required in such a device.
Patent CA-2060231-A1 (CA)
Inventor: CLOONAN THOMAS J
IPC: H04B10/27
Filed: 1992-01-29
Abstract: A network comprising a plurality of successively interconnected node stages where each node has an associated data connection state and includes a control element, significantly implemented as part of the node itself, for controlling the data connection state of at least one node of the following stage. The network is well suited for optical implementation and is controlled by shifting bits into the network for storage by the control elements rather than relying on spatial lightmodulators.