baber/WOPTO huggingface dataset:
Patent CA-2118122-A1 (CA)
Title: Isolation of steroids containing a 5,7-diene functionality from a sterol mixture
Inventor: TANABE MASATO
IPC: C07J75/00
Filed: 1993-04-14
Abstract: A method is provided for isolating 5,7-diene-containing steroids, particularly 3 .beta.-ols and esters of 3 .beta.-ols, from a sterol mixture. The method involves (1) treating the mixture with a dienophile or with an oxidizable dienophile precursor in combina-tion with an oxidizing agent so as to provide a Diels-Alder adduct of the 5,7-diene to be isolated, followed by (2) removal of the adduct from the mixture and (3) regeneration of the 5,7-diene with a suitable reducing agent. The invention also encompasses subsequent purification steps and intermediate modification of the Diels-Alder intermediate, e.g., wherein chemical conversion of the Diels-Alder adduct is effected prior to regeneration of the 5,7-diene.  Novel compounds which are Diels-Alder adducts of 5,7-diene-containing steroids are provided as well.
Patent CA-2119444-A1 (CA)
Title: Preservative for pharmaceutical products
Inventor: MARTY HERBERT
IPC: A61K9/00
Filed: 1992-09-21
Abstract: 2119444 9305794 PCTABS00021 A pharmaceutical composition for ophthalmic use comprising at least one active ingredient, a carrier substance, and a preservative comprising a sodium silver chloride compound and dissolved in said carrier substance is disclosed.
Patent CA-2119519-A1 (CA)
Title: Gas turbine group
Inventor: ALTHAUS ROLF
IPC: F23R3/28
Filed: 1994-03-21
Abstract: In a gas turbine group which consists essentially of a compressor (2), a first combustion chamber (3), a first turbine (4), a second combustion chamber (5) and a second turbine (6), the first combustion chamber (3) is configured as an annular combustion chamber. This annular combustion chamber (3) is operated by a number of premixing burners (11) which are distributed at the periphery. The first turbine (4) is designed in such a way that its exhaust gases have a temperature level which is above the self-ignition temperature of the fuel (13) used in the second combustion chamber (5).      This second combustion chamber (5) consists of a burnerless, annular combustion space in which a number of vortex-generating elements (14) are integrated. The turbomachines, namely compressor (2), first turbine (4) and second turbine (6) are disposed on a rotor shaft (1), this rotor shaft (1) being supported in two bearings (9, 15).
Patent CA-2120493-A1 (CA)
Title: Process for making antimicrobial quinolonyl lactams
Inventor: WHITE RONALD E
IPC: A61K31/47
Filed: 1992-09-28
Abstract: The present invention provides methods of making compounds of the structure [Q - L1] - L - [L2 - B], wherein Q is a quinolone moiety; B is a beta-lactam moiety; L, L1, and L2 together comprise a carbamate-containing linking moiety, comprising the steps of: 1) reacting a lactam compound of the formula B-L4-H with phosgene to form an intermediate compound of the formula B-L4-C(=O)-Cl, where L4 is oxygen; and 2) coupling said intermediate compound with a quinolone compound of the formula Q-l3-R44, wherein L3 is nitrogen; R44 is hydrogen, Si(R45)3, or Sn(R45)3; and R45 is lower alkyl. Preferably, the process additionally comprises steps prior to the reacting and coupling steps where esters of the lactam and quinolone compounds are made. Also preferably, the coupling step comprises adding a solution containing the quinolone compound to a solution containing the intermediate compound. The process steps are also preferably performed at a temperature of from about -80 ·C to about 0 ·C. Preferred antimicrobial compounds made by these processes are those where the beta-lactam moiety is a penem.
Patent CA-2120763-A1 (CA)
Title: Dendrimeric polychelants
Inventor: WATSON ALAN D
IPC: A61K47/48
Filed: 1992-10-06
Abstract: There are provided polychelants and their metal chelates which are useful in diagnostic imaging and in radiotherapy and which comprise a plurality of macrocyclic chelant moieties, e.g. DOTA  residues, conjugated to an up to fifth generation dendrimer backbone molecule, e.g. a starburst dendrimer. To produce a site-specific polychelate, one or more of the macrocyclic chelant carrying backbone molecules may be conjugated to a site-directed molecule, e.g.  a protein.
Patent CA-2122458-A1 (CA)
Title: Barrier film for packaging
Inventor: LEE CHI-LONG
IPC: C08J7/04
Filed: 1994-04-28
Abstract: BARRIER FILM FOR PACKAGING    Abstract The present invention relates to the composition, preparation and use of multi-layer composite films comprising a core layer of low gas permeable material, two intermediate layers sandwiching the core layer and two outer layers sandwiching the two intermediate layers.  The core layer provides an excellent oxygen barrier property, whereas the intermediate and outer layers protect the core layer so the oxygen permeability of the resulting multi-layer composite film becomes independent of relative humidity.
Patent CA-2122809-A1 (CA)
Inventor: OBRIST BASIL
IPC: B23Q7/14
Filed: 1994-05-03
Abstract: The clamping apparatus comprises a base member adapted to be fixed in the working area of the machining apparatus and a work piece carrier member adapted to be put onto the base member and to be clampingly fixed to the base member, the work piece carrier member being adapted to receive a work piece to be machined.          Aligning elements fixed to the work piece carrier member and to the base member and cooperating in pairs define the position of the work piece carrier member in X-, Y- and Z-direction as well as with regard to its angular orientation. For the definition of the X-Y-position, three aligning element pairs are provided. Two of them are located opposite to each other at the two lateral end regions of the clamping apparatus and define the position along the Y-axis which runs perpendicular to a connection line between the two aligning element pairs. The third aligning element pair is located in the center between the two other ones and defines the position in the X-axis. For clamping the work piece carrier member to the base member, the base member is provided with two clamping members which are located each between the central and one of the lateral aligning element pairs.
Patent CA-2123291-A1 (CA)
Title: Security cover
Inventor: BERGERON CLAUDE
IPC: A61F5/37
Filed: 1994-05-10
Abstract: A security cover for preventing a person lying on a bed from falling off the bed comprising a cover made of a flexible but sturdy material and a line removably fastened to the longitudinal sides of the bed. The cover includes loops mounted on each sides. The loops may be secured to the line in sliding relationship so that the cover forms, with the mattress, an enclosed space around the person lying on the bed thereby preventing this person from falling off the bed.
Patent CA-2123636-A1 (CA)
Title: Alkyl substituted heterocycles
Inventor: JACOBS ROBERT T
IPC: C07D211/22
Filed: 1994-05-16
Abstract: ABSTRACT                  ALKYL SUBSTITUTED HETEROCYCLES         The present invention concerns the novel alkyl substituted heterocycles of formula I, set out below, wherein Q, Q1, Q2 and R have the values defined herein, which antagonize the pharmacological actions of one of the endogenous neuropeptide tachykinins at the neurokinin 2 (NK2) receptor making them useful whenever such antagonism is desired, such as in the treatment of asthma and related conditions.  The invention also provides pharmaceutical compositions containing the alkyl substituted heterocycles for use in such treatment, methods for their use, and processes and novel intermediates for their manufacture.                             I
Patent CA-2124062-A1 (CA)
Title: Expansible Plug
Inventor: HAAGE MANFRED
IPC: F16B13/12
Filed: 1994-05-20
Abstract: The invention proposes an expansion dowel (1) which has a longitudinally divided expansion region (11). A shank part (5), which forms one half of the expansion region (11), is connected to a shank sleeve (2), extending towards the dowel opening (8), via dovetail-shaped connecting elements or other connecting elements in a connection region (19). The other shank part (4) of the expansion region (11) may be integrally connected to the shank sleeve (2). <IMAGE>
Patent CA-2124517-A1 (CA)
Title: Method of fitting a coil onto a bobbin
Inventor: LEET EDWARD
IPC: H01H71/74
Filed: 1994-05-27
Abstract: ABSTRACT        The invention relates to a method of fitting an overload coil for a circuit breaker onto a bobbin assembly.  The overload coil is pre-formed into a helical coil with a pair of terminals and a coil sub-assembly is formed by attaching electrical leads to the terminals of the coils.  Separate base and top halves of a split bobbin are assembled so that the pre-formed coil of the coil sub-assembly is held captive therebetween.  A sensing tube is fitted through an aperture extending axially through the assembled split bobbin, and the sensing tube is mounted onto a magnetic cradle.  Different top halves, such as a voltage coil top half and a high inrush top half may be fitted into a common base half.  The invention extends to a bobbin assembly for a circuit breaker, as well as to an overload coil sub-assembly.
Patent CA-2124617-A1 (CA)
Title: Urinal assembly
Inventor: GOLLEDGE DAVID J
IPC: E03D13/00
Filed: 1994-05-30
Abstract: A trough shaped urinal receptacle is provided together with a supporting stirrup therefor which cradles the receptacle in a draining position against a rear wall of the stirrup. Upper side wall portions of the receptacle are exposed so that the receptacle can be gripped in one hand and lifted out of the stirrup. The stirrup has a C-shaped opening for connecting a urine drainage pipe, and a flushing water supply, to the receptacle, and the receptacle has wall passages for directing flushing water along upper portions of the side walls thereof.
Patent CA-2127506-A1 (CA)
Title: Quick connect swivel coupling
Inventor: KIBLAWI DANIEL F
IPC: F25B41/00
Filed: 1994-07-06
Abstract: ABSTRACT OF THE DISCLOSURE A quick connect coupling for securing a pair of air conditioning refrigerant lines to a system component of an automotive air conditioning system.  The quick connect coupling is capable of being operated with one hand so as to allow both refrigerant lines to be simultaneously connected or disconnected from the system component.  The quick connect coupling also incorporates a safety feature which prevents the refrigerant lines from being disengaged from the coupling unless the coupling is sufficiently loosened to allow the coupling to be rotated out of engagement with one or both refrigerant lines.
Patent CA-2127637-A1 (CA)
Title: Fluid jet surgical cutting tool
Inventor: BAIR SCOTT
IPC: A61B17/00
Filed: 1994-07-08
Abstract: A pulsed fluid jet surgical instrument includes a cannula extending from a handpiece, the cannula emitting a pulsed fluid jet for cutting and emulsification purposes, and also providing suction for aspiration and evacuation of the fluid and tissue. A pressure intensifier piston arrangement receives fluid at relatively low pressure, and operates reciprocally and reiteratively to pump the fluid through the jet needle in a series of high pressure pulses, each having a nearly rectangular pressure waveform. The pressure intensifier piston is T-shaped, including a broad end which divides a drive bore into a driving chamber and a retracing chamber.  A bistable valve is connected to admit high pressure gas into the actuating chamber, driving the piston to translate. The narrow end of the piston is disposed in a fluid pumping chamber connected to a supply of fluid. The translating piston drives the fluid from the pumping chamber through a first check valve into a fluid jet needle, which directs the high pressure fluid pulse to a tissue target. The bistable valve switches to admit pressurized gas to the retracting chamber, driving the piston retrograde and allowing the pumping chamber to refill with fluid through a second check valve. There is no high pressure fluid supplied to the handpiece, and only the pressure intensifying pumping action of the piston creates a high pressure fluid pulse. The gas supply to drive the piston is t a relatively low pressure, so that gas pressure cannot comprise a safety risk to the patient. Thus failure of the piston mechanism cannot result in the emission of a stream of high pressure fluid, and the instrument is inherently safer than prior art instruments that are connected to a high pressure fluid source.
Patent CA-2129815-A1 (CA)
Inventor: STEEBY JON A
IPC: B60W10/11
Filed: 1994-08-09
Abstract: A control method/system for controlling upshifting in an automated mechanical transmission system (10) provided with an engine compression brake (50) is provided. A control unit (54) is effective to operate the engine compression brake during a transmission upshift such that at initiation of an upshift the engine compression brake applies a minimum retarding torque to said engine, said retarding torque is then gradually increased to a maximum retarding torque value and, upon sensing that engine speed (ES) is within a predetermined value (REF1) of the synchronous value thereof, the retarding torque applied by said engine brake is caused to gradually decrease until such time as engine speed reaches the synchronous window therefor.
Patent CA-2129836-A1 (CA)
Title: Apparatus for extracorporeal separation of fluorochemicals from whole blood of a patient
Inventor: RICHARD THOMAS J
IPC: A61M1/02
Filed: 1993-05-26
Abstract: 2129836 9324158 PCTABS00028 Methods and apparatus for practical extracorporeal separation of fluorochemicals from clinically fluorochemical-containing whole blood of a patient. The methods incorporate centrifugal apheresis devices (54), preferably with low extracorporeal volumes, that provide a means for continuously removing separated fluorochemical-enriched fractions from the centrifuge during processing and return of whole blood-enriched fractions to the patient.
Patent CA-2130557-A1 (CA)
Title: Suction cup assemblies
Inventor: RUSSELL TONY A
IPC: A01D45/00
Filed: 1993-02-18
Abstract: A compliant mounting to attach a suction cup (11) to a support rod (10) is configured so that tilting movement of the cup occurs in such a way that translation of the mouth of the cup is minimised. The effective centre of the cup pivotal movement should lie within the confines of, or closely adjacent the cup. In the embodiment this is achieved by providing a sleeve (50) having an open lower end across which is stretched a resilient membrane (52). The membrane has a central aperture in which is secured the cup (11).  Tilting movement of the cup occurring by subjecting the cup to a one-sided force A results in a complex pivotal cup motion by deformation of the membrane (52).
Patent CA-2131211-A1 (CA)
Title: High energy ignition generator, in particular for a gas turbine
Inventor: BALLAND PATRICK
IPC: H03K3/57
Filed: 1994-08-31
Abstract: The generator comprises a source of energy (1) connected to an energy storage means charging circuit comprising a first storage capacitor (2) and means (3) for connecting these storage means to a discharging circuit comprising in series energy recovering inductance means (4) and an ignition spark plug (5), and to terminals of which discharging circuit there are connected free wheel means (6) and a resistor (7) connected in parallel, so as to generate sparks between the electrodes of the spark plug. The energy storage means comprise a second capacitor (8) connected in parallel to terminals of the connecting means (3) and of at least a part of the inductance means (4).
Patent CA-2132528-A1 (CA)
Title: Agent for use as an anti-irritant
Inventor: CAUWENBERGH GERARD F M J
IPC: A61K8/46
Filed: 1993-03-16
Abstract: The use of a compound having formula (1), or a cosmetically acceptable acid addiction salt form thereof, for preventing or reducing irritation or itching of the skin of human beings: cosmetic compositions comprising said agents, processes for preparing said compositions. and a method of preventing or reducing irritation or itching of the skin of human beings.
Patent CA-2134483-A1 (CA)
Title: Impact sensor for vehicle safety restraint system
Inventor: MEISTER JACK B
IPC: G01P15/11
Filed: 1994-10-27
Abstract: Abstract of the Disclosure An acceleration sensor that includes a permanent magnet mounted for movement within a cylindrical cavity in a body of non-magnetic material.   The magnet has a cylindrical geometry and an outer  surface with  a  first  portion  of  electrically  conductive construction entirely around the magnet adjacent to one axial end thereof,  and  a  second  portion  of  electrically  non-conductive construction entirely around the magnet adjacent to an opposing end thereof.  A pair of diametrically opposed electrical contact leaves extend through openings into resilient sliding contact with the magnet.  The magnet is resiliently urged toward one end of the cavity such that the contacts are in engagement with one of the first and second surface portions.  Acceleration forces on the magnet move the magnet toward the opposing end of the cavity, bringing the contacts into engagement with the other of the first and second surface portions, such that motion of the magnet within the cavity results in a change in electrical conductance between the contacts.
Patent CA-2135475-A1 (CA)
Title: Crime prevention display device, exhibit crime prevention alarm control method and apparatus therefor
Inventor: ARAKAWA HIDEO
IPC: A47G1/16
Filed: 1994-03-11
Abstract: ABSTRACT         A crime prevention display device is disclosed which. includes a casing (21) provided therein with a chuck mechanism (20) for gripping a wire (W) inserted therethrough, a crime prevention alarm circuit (3) connected to the casing and a load detection means (40, 66, 25) for detecting a variation in load applied from an exhibit to the device.  The load detection means (40) detects that removal of the exhibit held on the display device causes the device to be unloaded, so that the crime prevention alarm circuit (3) generates an alarm, leading to warning of the abnormality.  Also, the crime prevention alarm circuit (3) generates an alarm sound, which is then collected by a sound wave receiver, followed by inputting of the alarm sound to a centralized control equipment (13), so that it may positively exhibit a crime prevention alarm function without causing any malfunction.
Patent CA-2135642-A1 (CA)
Inventor: BARSOUM JAMES G
IPC: C12N15/87
Filed: 1993-08-19
Abstract: This invention relates to delivery of biologically active cargo molecules such as polypeptides and nucleic acids into the cytoplasm and nuclei of cells  in vitro  and  in vivo.  Intracellular delivery of cargo molecules according to this invention is accomplished by the use of novel transport polypeptides which comprise one or more portions of HIV tat protein and which are covalently attached to cargo molecules. The transport polypeptides of this invention are characterized by the presence of the tat basic region (amino acids 49-57), the absence of the tat cysteine-rich region (amino acids 22-36) and the absence of the tat exon 2-encoded carboxy-terminal domain (amino acids 73-86) of the naturally-occurring tat protein. By virtue of the absence of the cysteine-rich region found in conventional tat proteins, transport polypeptides of this invention solve the problems of spurious trans-activation and disulfide aggregation. The reduced size of the transport polypeptides of this invention also minimizes interference with the biological activity of the cargo molecule.
Patent CA-2138498-A1 (CA)
Title: Methods of inhibiting hirsutism and alopecia in women
Inventor: CULLINAN GEORGE J
IPC: A61K31/38
Filed: 1994-12-19
Abstract: A method of inhibiting hirsutism or alopecia in women comprising administering to a female human in need of treatment an effective amount of a compound having the formula   (I) wherein R1 and R3 are independently hydrogen, -CH3,            , or          , wherein Ar is optionally substituted phenyl;          R2 is selected from the group consisting of pyrrolidine, hexamethyleneamino, and piperidino; or a pharmaceutically acceptable salt of solvate thereof.
Patent CA-2138679-A1 (CA)
Title: Coin-operated dispensers
Inventor: LUCAS THOMAS E
IPC: G07F5/26
Filed: 1994-12-21
Abstract: A coin-operated dispenser has an access door on the front side of a housing provided with a flange projecting forwardly past the access door, around and adjacent the access door, for counteracting levering of the access door from the housing. The access door carries a forwardly extending coin chute, and a security cover extends protectively over the access door within the flange and is retained by a removable retainer member and a lock. The security cover has a tray-shaped projection underlying the coin chute, with side walls receiving the coin chute therebetween and an end wall adjacent a forward end of the coin chute, the tray-shaped projection serving to counteract ripping of the coin chute from the access door.
Patent CA-2138699-A1 (CA)
Title: Inkless Blackboard Display Panels
Inventor: HOM SEE M
IPC: B43L1/00
Filed: 1994-12-21
Abstract: Traditionally, blackboards, chalk boards and whiteboards are used for display purposes in classrooms and offices.   These boards use chalk sticks or ink markers to write and need an eraser for clean up.  This invention relates to a group of electrical display panels which can replace these boards and allows direct free hand writing without using any chalk or ink.   The display panel utilizes a dot matrix of display elements with a writing device to turn them on and off.   The panel  has built  in storage capability and can  include interfaces to an external printing device and controller such as a computer.
Patent CA-2141754-A1 (CA)
Title: Burner for the combustion of fuel
Inventor: HUFTON PETER F
IPC: F23D1/00
Filed: 1995-02-03
Abstract: A burner (10) for the combustion of fuel comprises a passage (32) through which in  operation a mixed flow  of fuel and  air  passes  for  primary  combustion  at  it's outlet. Two further annular passages (34, 36), concentric with and  radially  outward  of  the  passage  (32),  are provided through which supplementary flows of air pass to support the primary  combustion. The outlets  of the  two annular  passages  (34,  36)  diverge  to  discharge  the supplementary flows of air at an angle to the mixed  flow of fuel and air. Members (62) are provided in the annular passage which obstruct the discharge of the supplementary flow of  air.  Furnace  gases  circulate  in  the  region downstream of the  obstruction members (62).  Circulation of the furnace gases  delays the mixing  of the fuel  and air mixture with  the supplementary air  flows to  reduce the nitrogen oxides produced.
Patent CA-2142935-A1 (CA)
Title: Guard for in-line roller skates
Inventor: RICHARDSON MARK
IPC: A63C17/06
Filed: 1995-02-20
Abstract: The present invention relates to a guard for in-line roller skates. The guard is lightweight, easy to carry, easy to use, adaptable to a variety of sizes of in-line roller skates and inexpensive to manufacture. The guard prevents the rollers on in-line roller skates from rotating which is useful when persons wish to walk rather than skate on their in-line roller skates. The guard includes a frictional element which presses against the edge of all of the rollers of an in-line roller skate preventing them from rotating and means for connecting the frictional element to the skate. The connecting means connects the frictional element to the boot.
Patent CA-2144536-A1 (CA)
Inventor: LAWLOR SHAWN P
IPC: F02K7/00
Filed: 1993-09-14
Abstract: An apparatus (100) for generation of mechanical and electrical power. Ramjet thrust modules (102a, 102b) operate at supersonic speed (preferably Mach 3 to 4) at the distal tip ends (116a, 116b) of a low aerodynamic drag rotor (106). Rotor (106) is affixed at a hub means (114) to a power output means including central rotating upper (104a) and lower (104b) shaft portions. Escaping exhaust gases may be cooled by passing them through an enthalpy extraction section to heat a secondary fluid, Combustion gases may also be directed through a reaction turbine to utilize remaining kinetic energy to generate shaft energy.