baber/WOPTO huggingface dataset:
Patent CA-2144355-A1 (CA)
Title: Ultra low crevice volume piston assembly
Inventor: NAGESWAR RAO V DURGA
IPC: F02F3/00
Filed: 1995-03-10
Abstract: A piston and ring assembly operative within a cylindrical bore wall to retain pressurized fluid to one side of the assembly, the piston having a crown and an annular side wall for movement along the bore wall.  The assembly comprises a piston having at least on annular groove (the groove having an enlarged height of at least 4mm) in the side wall of the piston; at least two split compression rings in each said groove effective to each substantially annularly engage the bore wall, the rings having mating superimposed surfaces to facilitate movement of the rings in unison as a result of friction therebetween; a compressed elastomeric ring (constituted of polysilanes, such as silastic with strengtheners) disposed in said groove (having a compression of 10-20% at room temperature), acting between the piston and ring most-remote from said piston crown, to resiliently bias at least said most-remote-ring against the bore wall; a solid film lubricant coating essentially all the sides of said groove; and non-mating surfaces of solid lubricant carried by said rings to effect reduced friction between said rings and groove when being biased by said elastomeric ring.
Patent CA-2144416-A1 (CA)
Title: Method and composition for the treatment of hair loss
Inventor: BROWN SANDRA
IPC: A61K8/00
Filed: 1993-09-13
Abstract: A method and compound having hydrocortisone and tretinoin is disclosed for the treatment of hair loss. The method also includes identifying any underlying conditions causing hair loss, treating the underlying conditions if possible, administation of hydrocortisone and tretinoin to the affected areas, and administration of vitamins having B complex.
Patent CA-2145509-A1 (CA)
Title: 3-,8-substituted deuteroporphyrine derivatives, pharmaceuticals containing them and methods of producing them
Inventor: HILGER CHRISTOPH-STEPHAN
IPC: C07D487/22
Filed: 1993-09-28
Abstract: Porphyrine-complex compounds consisting of a ligand of formula (I) and at least one ion of an element of atomic number 21-32, 37-39, 42-51 or 57-83, wherein R2 stands for R3, a -CO-Z group of a -(NH)o-(A)-q-NH-D group,.R3 stands for a -(C = M)(NR4)o-(A)q-(NR5)-K group, and K stands for a complexing agent of general formula (IIa) or (IIb), pharmaceuticals containing these compounds, their use in diagnostics and therapy as well as methods of producing them.
Patent CA-2146481-A1 (CA)
Title: Method for immunization of mammals against atherosclerosis and pharmaceutical compositions for obtaining said immunization
Inventor: FILIP DOINA
IPC: A61P9/10
Filed: 1995-04-06
Abstract: A method for immunizing mammals, particularly humans, against atherosclerosis, and pharmaceutical preparations for the prophylaxis and treatment of atherosclerosis. The pharmaceutical preparations are obtained by subjecting certain lipoproteins, derived from either the blood of the patient or from the same mammalian species, to an in vitro fusion step to provide heavy microemulsion particles. The fused proteins are then incorporated into a pharmaceutically acceptable immunization carrier or diluent for delivery to the patient. These compositions avoid the complexities of presently available methods of treatment, and appear to be more effective. The lipoproteins used are those known as VLDL, LDL, and VLDL-remnant or IDL.
Patent CA-2146758-A1 (CA)
Title: Postdistortion circuit for reducing distortion in an optical communications system
Inventor: PIDGEON REZIN E
IPC: H04B10/18
Filed: 1993-10-08
Abstract: A postdistortion network (36) for a receiver at a receiver location (12) in an optical transmission system is disclosed. The receiver converts an optical signal carried over an optical transmission link (11) to an RF signal. The postdistortion network (36) includes an optical terminal for receiving the RF signal and a distortion generator for generating a distortion signal from the RF signal. An adjusting circuit adjusts the phase and amplitude of the distortion signal based on distortion at said receiver location (12). The adjusted distortion signal is combined with the RF signal in order to cancel or substantially suppress distortion in the RF input signal. The present invention permits individual receivers in an optical transmission system to be compensated for dis-tortion which may be unique to that receiver location. A communication system including a predistortion network and a postdis-tortion network is also disclosed.
Patent CA-2146770-A1 (CA)
Title: A method of manufacturing a cover for a press roll
Inventor: BONANDER JAMES
IPC: D21F3/08
Filed: 1993-09-09
Abstract: A method of manufacturing a cover for a press roll includes the steps of feeding epoxy matrix (10) into a container (12) and agitating the same. Filler material (16) is added to the matrix (10) while the matrix is being agitated. The matrix (10) and fill-er (16) are conveyed to an application zone (18). A roll (20) of reinforcing material (22) is unwound such that the unwound rein-forcing material (22) extends past the application zone (18), The agitated matrix (10) and filler (16) is applied to the unwound ma-terial (22) during passage of the material past the application zone (18). The reinforcing material (22) with the matrix (10) and filler (16) applied thereto are then spirally wound around the press roll (28) such that the press roll (28) is covered with the rein-forcing material (22) impregnated with the matrix (10) and filler (16). The arrangement is such that the surface characteristics of the resultant cover are dependent on the amount and type of filler material added to the matrix (10).
Patent CA-2147525-A1 (CA)
Title: Convertible furniture
Inventor: PROANO LOU
IPC: A47D11/00
Filed: 1995-04-21
Abstract: An article of furniture which may be configured in the form of a crib, a youth bed, or an adult bed, wherein a crib structure is produced through the employment of a rear panel, a right side panel, a left side panel, a front panel and a first mattress support frame. The front panel comprises of a stabilizer bar and a gate. The gate is movable to permit greater access to the confines of the crib. The gate may be in the form of a "swing" gate or a "drop" gate. The crib is convertible to a youth bed by rearranging and/or eliminating components forming the gate and stabilizer bar. The gate or stabilizer bar may be arranged to form a roll bar to prevent a slumbering toddler from rolling off of the edge of the mattress, and when pivotally inverted, eliminate the roll bar and function to provide increased stability. The stabilizer bar may be removed and reattached to the youth bed at alternative locations, where the same is substantially concealed while providing increased stability for the youth bed configuration. The youth bed is convertible to an adult bed through a further rearrangement and/or elimination of structural elements. Particularly, the right and left side panels are replaced by right and left bed rails and the mattress support frame is eliminated. The rear panel defines a headboard and the front panel, or a portion thereof, defines a footboard. The transition from one configuration to another is simple.
Patent CA-2148118-A1 (CA)
Title: Refractive surgery knife and process
Inventor: FEASTER FRED T
IPC: A61F9/013
Filed: 1994-09-27
Abstract: The refractive surgery keratotomy knife (21) has a handle (23) with a foot plate (27) with an opening (29) for receiving a surgical blade (31). The foot plate (27) is adapted to be placed against the cornea of the eye by being pressed directly into the cornea tissue. The cutting edge (CE) of the blade (31) is located at an acute angle or parallel to the bottom of the foot plate (27) either due to the design of the blade (31) or with the use of an adjusting mechanism of the knife (21). In one embodiment the blade of the knife is flared.
Patent CA-2148289-A1 (CA)
Title: Perforated nonwoven fabrics
Inventor: LEVY RUTH LISA
IPC: D04H1/70
Filed: 1995-05-01
Abstract: The invention provides a perforated nonwoven web fabricated from a bonded thermoplastic polymer web. The perforated nonwoven web contains a multitude of selfsustaining perforations that are substantially free of melt-fused edges and can be characterized as stretch-opened perforations. The invention further provides a process for producing the perforated nonwoven web.
Patent CA-2148915-A1 (CA)
Inventor: SMITH COLIN
IPC: F23D14/48
Filed: 1993-11-12
Abstract: A fuel gas fired premixed burner (1) includes a flame strip (13) having a plurality of through slots (17). Each slot includes a relatively narrow dimension portion (31) that opens stepwise by means of a land (32) into an outlet portion (33) of a substantially constant relatively wide dimension. Under given conditions the burner flame stabilises either at the outer end of the outlet portion (33) (at a relative high heat input range) or on the lands (32) (at a relatively low heat input range) accompanied by reduction of the resonance tendency of the burner over those heat input ranges.
Patent CA-2149686-A1 (CA)
Inventor: BAUMHAUER JOHN CHARLES JR
IPC: H04R3/00
Filed: 1995-05-18
Abstract: Full directional pickup coverage is realized by employing a pickup arrangement which provides a plurality of audio polar directivity patterns, i.e., directional beams. These polar directivity patterns are formed in a unique embodiment of the invention by generating a plurality of frequency independent time-delayed versions of a corresponding plurality of spatially sampled signals and by combining each of the plurality of spatially sampled signals with one or more selected ones of the time delayed versions to generate at least a similar plurality of polar directivity patterns. More specifically, the spatially sampled signals are combined with the delayed versions in such a manner that a greater number of polar directivity patterns can be considered than the number of spatially sampled signals. In a specific embodiment, the spatially sampled signals are acoustic (audio) and a plurality of microphones arranged in a predetermined spatial configuration
Patent CA-2150210-A1 (CA)
Inventor: HUENNIGER EDWARD A
IPC: F16K31/30
Filed: 1995-05-25
Abstract: A refrigerant flow control system for regulating the flow of a refrigerant liquid from a condenser sump to an evaporator wherein the control system regulates the liquid flow as a function of both the level of the liquid in the condenser sump and the system pressure differential between the condenser and evaporator of the refrigeration system.  The flow control system includes a stop, biasing means, a guidepost, a standpipe, a generally tubular metering sleeve, and a float member.
Patent CA-2150669-A1 (CA)
Title: Rotor for mechanical air classifiers
Inventor: OEZMERIH LEVENT
IPC: F04D29/28
Filed: 1993-11-30
Abstract: A rotor for mechanical air classifier of the kind comprising hollow cage-like rotor member (28), provided with a plurality of entering openings for air and classified material. By the invention, the openings (30) are generally equidimensionally shaped, or with rather small proportions of the length/width ratio of the openings. One method for making a rotor in accordance with the invention, is characterized by the following steps: I) providing a plate shaped blank of metal or steel; 2) furnishing said blank with a desired pattern of openings by punching or drilling; 3) forming said plate-shaped blank by rolling or the like into a rotational body, such as a cylinder or cone; 4) joining the meeting initially oppositely located side edges of the blank and thereby completing the rotor body, providing each end of the rotor with end sections, one of which includes a drive shaft. One second version of the method comprises tbe following steps: a) providing a plate-shaped blank of metal or steel; b) forming by rolling or otherwise the blank into the form of a rotational body such as a cylinder or cone, and then drilling or punching holes on its surface; c) joining the initially oppositely located side edge of the blank along the meeting line by welding or otherwise, and thereby completing the rotor body; d) providing each end of the rotor body with end members, at least one of which includes a drive shaft for the rotor.
Patent CA-2152320-A1 (CA)
Inventor: PARKER THOMAS WAYNE
IPC: E03C1/04
Filed: 1995-06-21
Abstract: A replacement faucet sprayer hose installation kit containing a hose segment having predetermined standard male and female fittings permanently attached to the opposite ends thereof, and a plurality of male and female adaptor fittings adapted to selectively interconnect the male and female hose fittings to the water outlet line of a faucet and to a pull-out faucet spray head.
Patent CA-2156090-A1 (CA)
Title: Method of treating immature birds with il-2
Inventor: RICKS CATHERINE A
IPC: A61K38/20
Filed: 1994-02-02
Abstract: A method of combatting bacterial infections, including Escherichia coli and Salmonella infections, in immature birds by adminstering to said immature bird a T-cell growth factor comprising Interleuikin-2 (IL,2) in an amount effective to combat bacterial infections in immature birds is disclosed. The method is preferably carried out on chickens on about the eighteenth day of incubation.
Patent CA-2157551-A1 (CA)
Title: Process for bleaching alkyl polyglycosides
Inventor: GRUETZKE JUERGEN
IPC: C07H15/04
Filed: 1995-09-05
Abstract: The application relates to a novel process for bleaching alkyl polyglycosides having C8- to C20-alkyl groups in aqueous solution using peroxy compounds. The bleaching is carried out in a tubular reactor.
Patent CA-2158007-A1 (CA)
Title: High purity nitrogen production process and installation
Inventor: HA BOA
IPC: F25J3/04
Filed: 1995-09-11
Abstract: Ultra-pure nitrogen is produced in a process comprising air in an integrated plurality of columns. A nitrogen-enriched stream is elevated in pressure and thereafter contaminants and impurities are removed in an auxiliary column system which allows for the main column to efficiently operate below the required nitrogen product pressure, while including an ability to optionally obtain a normal purity nitrogen and a liquid nitrogen product. The process and installation remains efficient and economical in a relatively small scale installation to produce extremely pure nitrogen product.
Patent CA-2159528-A1 (CA)
Title: Implementation of selective pushout for space priorities in a shared memory asynchronous transfer mode switch
Inventor: CHOUDHURY ABHIJIT KUMAR
IPC: H04L12/56
Filed: 1995-09-29
Abstract: A system for queueing and selective pushout and method are disclosed for a packet communications module such as a shared memory asynchronous transfer mode (ATM) switch.  The shared memory stores packets in queues, each packet having a field and at most two pointers.  Within each queue, the packets having respective space priorities are stored in sub-queues each having the respective space priorities.  The packets are stored in these priority sub-queues using a first pointer pointing to the next packet of the same space priority in the queue.  The second pointer associated with a stored packet points to the previous packet of greater than or equal space priority in the FIFO order in the queue.  The field of a packet is used to store the priority value corresponding to the next packet in FIFO order in the queue, and this field is used by a processor to decide priority sub-queues to serve next.  The packets are stored in the queues in a FIFO order using the two pointers and the fields of the packets. Theprocessor controls the selective pushout to push out a packet and uses the two pointers and the fields of the packets to restore the FIFO order.  A method is also disclosed including the steps of storing packets in a queue, with each of the queued packets associated with the two pointers and a field; serving the queue; pushing out packets from the queue; and maintaining queue-lengths and a state information table.
Patent CA-2163670-A1 (CA)
Title: Dental cleaning solutions
Inventor: HARE ROBERT V
IPC: A61K6/90
Filed: 1995-03-23
Abstract: A composition useful for removing and cleaning an oral dentition of organic residues that interfere with dental material activity, such as inhibiting curing of silicone based impression material. The composition is useful for cleaning temporary adhesive from a dentition prior to permanently adhering a crown, onlay, inlay or the like thereto and removing contaminating glove residues or the like from a dentition prior to taking of an impression. A method of preparing an impression  of a dentition in the oral cavity, for removing inhibitors left by latex gloves that interfere with platinum catalyzed hydrosilation reactions, includes applying the decontaminating composition including surfactants, especially a polyoxethylene surfactant, hydrogen peroxide and water to the area that is to have its impression  taken substantially immediately  before applying the impression taking material. The composition is rinsed from the area and, after drying, the taking of the dental impression proceeds free of surface inhibition of curing.
Patent CA-2164601-A1 (CA)
Title: Herpes simplex virus type-2 protease
Inventor: STEFFY KEVIN R
IPC: C12N15/57
Filed: 1994-05-25
Abstract: Protease activity associated with herpes simplex virus (HSV)type 2 was identified. The complete nucleotide and amino acid sequence of the protease was determined. The HSV-2 nucleic acid segment encoding the protease substrate ICP35 was also sequenced. Recombinant vectors and host cells for expressing the protease are also described.
Patent CA-2165433-A1 (CA)
Title: Novel chemical compounds having pde-iv inhibition activity
Inventor: CAVALLA DAVID
IPC: A61P29/00
Filed: 1994-06-21
Abstract: Novel purine derivatives and their isoguanine and dithioxanthine precursor compounds are disclosed.  These compounds have bronchial and tracheal relaxation and/or anti-inflammatory activity. The invention is also related to processes for their preparation, to pharmaceutical compositions containing them and to their medical use. In certain preferred embodiments, the invention relates to 3-substituted and 3,8-disubstituted 6-amino purine derivatives.          .
Patent CA-2165875-A1 (CA)
Title: Intersatellite communications systems
Inventor: BEAUCHAMP GARY
IPC: H04B7/185
Filed: 1995-12-21
Abstract: A multibeam communications satellite has direct links with at least one other satellite. The satellite's repeater operates in the bent-pipe mode and can provide service to users independent of signal content, format and protocol. Each incoming electromagnetic (radio) beam received by the satellite contains at least one channel of information, and each channel is divisible into subchannels. Naturally, each subchannel is of a bandwidth which is less than the bandwidth of the channel from which the subchannel was derived. The other satellite has outgoing beams that complement the first satellites incoming beams. Generally, both satellites have processors on board designed to interbeam-switch at the subchannel level. (However, a description is given also of an instance where one or the other satellites may not have subchannelizing capability and limited use may be made of the invention). The satellites are linked by an intersatellite link carrying information on a channel consisting of subchannels constituted from several incoming channels. Therefore, an outgoing beam from the second satellite can contain a channel having information combined from several incoming channels to the first satellite and the channel information on any incoming electromagnetic (radio) beam can be delivered at the subchannel level to several output beams from the second satellite. The system can operate in a broadcast mode whereby information at the subchannel level can be distributed simultaneously (i.e. in parallel) to several outgoing electromagnetic (radio) beams. The intersatellite link is treated as any other beam (incoming or outgoing, as the case may be), although its operating wavelength may be different from the operating wavelengths of the beams having terrestrial origin or destination. For example, the intersatellite link could be at microwave, optical or some other suitable frequency. The basic concept may be extended to a system supporting multiple intersatellite links, e.g. links in both directions between the two satellites or, in some circumstances, among a constellation of more than two satellites.
Patent CA-2168241-A1 (CA)
Title: Low Fat Spread
Inventor: UNDERDOWN JEFFREY
IPC: A23D7/015
Filed: 1994-07-20
Abstract: A water-continuous spread containing from 0.1 to 20 wt.% of fat, said spread being a W/O/W emulsion hydrolysed starch with a DE of 1-6 in the external phase at a concentration above its critical gelling concentration, said spread having a stress strain relation with a  maximum stress occurring at a strain of 0.001 - 1, the maximum stress at this strain being 0.01 to 100 kPa and with a ratio of plastic stress and the maximum stress of 0.1 to 1.
Patent CA-2168406-A1 (CA)
Title: Bread crumb maker
Inventor: SWYRD ROBERT
IPC: A47J43/25
Filed: 1996-01-30
Abstract: A bread crumb making machine in which a rotatable drum is mounted inside a housing, and the drum carries teeth which pass through slots of a rake secured parallel to the drum in the housing. Rotation of the drum forces the teeth to carve out bread crumbs from bread dropped onto the drum, which drop into an unloader below the drum. The teeth are arranged on the drum to pass one or a few at a time through the slots. An unloader sorts the bread crumbs into different sizes, and a feeder has a plate extending across an opening into the housing to prevent bread crumbs exiting through the feeder.
Patent CA-2172131-A1 (CA)
Title: Moveable sample tube multiple biopsy sampling device
Inventor: HUGHES KENNETH E
IPC: A61B17/28
Filed: 1994-09-20
Abstract: An instrument for obtaining tissue samples from a site deep within the body. The instrument has an elongated proximal portion and a distal portion to sever and remove a tissue sample from the body. The instrument includes a retractor and jaws (14) for severing and retracting multiple tissue samples within the instrument.
Patent CA-2172306-A1 (CA)
Inventor: MATSUGUCHI YUTAKA
IPC: B65C9/18
Filed: 1996-03-21
Abstract: A bonding apparatus for bonding a label of a label continuum to an object comprising a first feeding means for feeding the label continuum; a cutting means for cutting the label continuum fed by the first feeding means to a plurality of label strips each having a predetermined length; a second feeding means which has a contact surface having a configuration not easily bonded to w n adhesive layer of the label strip formed by cutting the label continuum by the cutting means and feeds the label strip to a bonding position at which the label strip is bonded to the object, by holding the label strip on the contact surface thereof; a feeding means, for feeding the object, formed in proximity to the second feeding means; and a printing means, for performing printing on the label strip fed by the second feeding means, formed in proximity to the bonding position at which bonding of the label strip to the object fed by the feeding means starts.