baber/WOPTO huggingface dataset:
Patent CA-2176739-A1 (CA)
Title: Video player/recorder cleaning device
Inventor: CLAUSEN EIVIND
IPC: G11B23/04
Filed: 1995-01-04
Abstract: An apparatus for cleaning a video cassette player/recorder machine is disclosed. The apparatus is for cleaning a machine that has a recess to receive a tape cassette (12) a rotating head drum (30), a plurality of guide members (46, 48, 50, 52, 54, 56) movable between a nonoperating position and an operating position, and a spool-brake deactivator pin (78). The apparatus of the invention includes a housing (112), an activation mechanism (138, 140, 142, 162), and a cleaning element (148). The housing is adapted to be positioned in the recess of the machine. The activation mechanism is engaged and moved by the spool-brake deactivator pin when the housing is positioned in the recess of the machine. Engagement with the spool-brake deactivator pin causes the activation mechanism to move the cleaning element into contact with the video head drum. The apparatus also includes two spools (120, 122) rotatably coupled within the housing and a cleaning ribbon (124) attached to the spools. The cleaning ribbon is positioned within the housing to be engaged by the guide members of the machine such that it contacts one side of the rotating head drum when the guide members are in an engaged positioned.
Patent CA-2176877-A1 (CA)
Inventor: YU I-PING
IPC: H01Q5/00
Filed: 1996-05-17
Abstract: An antenna comprising a substrate (12), and low band and high band opposite sense spiral antennas (21, 22) formed on the substrate (12) to provide for a common aperture isolated dual frequency band antenna (10).  The high band spiral antenna (22) is formed adjacent the center of the substrate (12) while the low band spiral antenna (21) is formed adjacent the periphery of the substrate.  The high frequency end of the low band antenna (21) is truncated at the low frequency end of the high band antenna (22), and the low frequency end of the high frequency antenna (22) is truncated at the high frequency end of the low band antenna (21) to provide for mutual isolation between the frequency bands.
Patent CA-2180598-A1 (CA)
Title: Refrigerant tubes for heat exchangers
Inventor: YAMAMOTO YUJI
IPC: F28F3/04
Filed: 1996-07-05
Abstract: A refrigerant tube for use in heat exchangers comprises a flat tube having parallel refrigerant passages in its interior and comprising upper and lower walls and a plurality of reinforcing walls connected between the upper and lower walls, the reinforcing walls extending longitudinally of the tube and spaced apart from one another by a predetermined distance. The reinforcing walls are each formed with a plurality of communication holes for causing the parallel refrigerant passages to communicate with one another therethrough. Each of the reinforcing walls is 10 to 40% in opening ratio which is the proportion of all the communication holes in the reinforcing wall to the reinforcing wall.
Patent CA-2191062-A1 (CA)
Title: An exercise apparatus
Inventor: CLAUSEN ANTHONY ROBIN
IPC: A63B23/035
Filed: 1995-05-23
Abstract: An exercise apparatus comprises an elongate hollow post formed from three interconnectable tube sections. A carriage is mounted slidably to the post, and a pair of handlebars extend transversely from the carriage. A pair of footrests is arranged to be selectably mounted at either end of the post for providing support against movement of the carriage, and a plurality of resistance elements such as rubber bands extend between the carriage and an anchor formation within one of the tube sections. The rubber bands pass around a pulley formation at one end of the post, and selector means are provided on the carriage for allowing a preselected number of the elastic bands to be engaged for varying the overall resistance of the carriage as it is displaced along the post. In use, the footrests are pivotably mounted to a selected end of the post so as to allow the post to pivot freely in a verticalplane when supported on the footrests. The length of the post may be varied by selecting the number of tube sections making up the post.
Patent CA-2191540-A1 (CA)
Title: Electrical apparatus for controlling liquid contaminants
Inventor: OWEN BRUCE W
IPC: E21B37/00
Filed: 1996-11-28
Abstract: A device is placed in a container containing flowing fluid to neutralize fluid contaminants and prevent their deposition on the walls of the container. The device includes a weak electrical current generator having an electric half-cell that forms an electric circuit with the earth-grounded container via the liquid and generates electrons to neutralize the charged contaminants. The generator includes one or more cupriferous tubes containing a mixture of vegetable oil, and powders of copper, zinc, manganese, cellulose and predominantly iron. Preferably, each tube contains:  vegetable oil -     5.0 - 20.0% iron powder -      50.0 - 80.0% copper powder -     2.0 - 10.0% zinc powder -       2.0 - 10.0% manganese powder -  2.0 - 10.0% cellulose powder -  2.0 - 15.0% trace minerals -        .50%. This device may be placed in the line of flow of a deep oil well to prevent deposition of paraffin and other contaminants onto the walls of the pipeline. The device is useful in all types of confined fluid systems which utilize flowing water, oil or glycol, such as pipelines, steam or hydronic boilers, cooling tower condensers, chillers, and water conditioners.
Patent CA-2193700-A1 (CA)
Title: Structure arrangement with a relief structure having an optical-diffraction effect
Inventor: REINHART WERNER
IPC: G06K19/06
Filed: 1995-06-22
Abstract: In order to improve a structure arrangement comprising a plurality of portions having a relief structure with an optical-diffraction effect, in particular for visually identifiable optical security elements for value-bearing documents, for example banknotes, credit cards, passes or cheque documents, or other articles to be safeguarded, with a first group of portions with a first structure having an optical-diffraction effect, which first group is disposed on a surface region of the structure arrangement, and at least one further group of portions with a further structure which has an optical-diffraction effect and which is different from the first structure, in such a way that a given item of information can be imparted to a viewer of the structure arrangement with a high level of intensity and uniformly over the entire extent of a preselected viewing angle range, it is proposed that the structure of the portions of the first aid the at least one further group respectively is such that, upon illumination of the structure arrangement, visually perceptible items of information originating from the portions of different groups are identical, as viewed from different sub-ranges of the viewing angle range.
Patent CA-2196013-A1 (CA)
Title: Control system and circuits for distributed electrical power generating stations
Inventor: THOMPSON SCOTT
IPC: H02J13/00
Filed: 1997-01-27
Abstract: A system (30) for providing electrical power to remote communities (34) widely distributed over an extended geographical area (38) includes a generating station (32) located proximate each of the communities, each generating station supplying only that community to which it is proximate. The generating stations are in electronic communication with a central computer (40). Each generating station includes a plurality of generators (54-56). Each of the generators is controlled by a microcomputer based controller (64). Each controller is arranged to operate the generating station cooperatively with the other controllers associated with other generators in the station, and to assume a supervisory role in doing so by a mutual arbitration procedure among the controllers. Each controller is also arranged to monitor important generator operating parameters and to communicate these parameters to the central computer. Any controller may be reprogrammed by instructions communicated from the central computer, and functions of any controller may be overridden by instructions communicated from the central computer. The controllers include novel signal processing circuits (90 and 85) and logic for improved voltage and frequency regulation. The controllers also include novel circuits (92) and logic for monitoring generator fuel consumption and calculating generator fuel-efficiency therefrom.
Patent CA-2196273-A1 (CA)
Title: Using hydrocarbon streams to prepare a metallic protective layer
Inventor: HAGEWIESCHE DANIEL P
IPC: C10G49/00
Filed: 1996-06-05
Abstract: A process for producing a metallic protective layer whereby a metal-containing plating, cladding, paint or other coating is applied to at least a portion of a reactor system and then contacted with a gaseous stream containing hydrocarbons, such as impure hydrogen, thereby producing a continuous and adherent metallic protective layer. The gaseous stream preferably comprises hydrogen, which may be recycled. A preferred embodiment of the invention is directed to touch-up procedures where a portion of an already protected reactor system is replaced or rewelded and the protective layer is formed as the replaced portion is brought on-stream.
Patent CA-2197601-A1 (CA)
Inventor: TOLEDANO SIDNEY
IPC: A45C13/22
Filed: 1997-02-14
Abstract: The coupling consists of an open ring (5) connecting a handle to an eyelet (4) in the upper edge of the bag, with the ring able to pivot freely inside the eyelet. The two ends of the ring are connected by a detachable link (6) which fitting inside a sleeve (7) inside the eyelet. The link comprises a bush (6c) which fits between the two ends of the spring and has two inner axially spring-loaded rods (6a, 6b) which engage with sockets (9, 10) inside the ring (5) to hold the link in place. The sleeve is fixed to the upper edge of the eyelet by welding.
Patent CA-2198310-A1 (CA)
Title: Pre-stressed built-up insulated construction panel
Inventor: JOHNSTON DAVID
IPC: E04C1/39
Filed: 1997-02-24
Abstract: A construction panel is formed of a plurality of elongate subpanels where each subpanel comprises a plurality of expanded polystyrene blocks placed end to end. Tensioning cables pass over the inner and outer surfaces of the subpanels between tensioning plates positioned at each end of the subpanels. Tensioning the cables imparts longitudinal compression in the subpanels, such that the blocks of the subpanels act monolithically.  The inner and outer surfaces of the subpanels are longitudinally convex. The panel may be corrugated. The subpanels may be interlocking to form the construction panel.
Patent CA-2199397-A1 (CA)
Title: Extrusion apparatus and method for producing three-dimensional shapes
Inventor: KUNAS KURT T
IPC: B29C48/07
Filed: 1996-03-12
Abstract: An extrusion apparatus for producing three-dimensional objects comprises at least one die (18, 20), an extruder (12), and a rotatable cutter plate (38).  The die is disposed adjacent to an outlet end of the extruder (12). The die (18, 20) forms an opening defining a two-dimensional shape, and the extruder (12) forces an extrudable material through the opening in the die. The rotatable cutter plate (38) is disposed adjacent to the die. The cutter plate (38) is configured to obstruct different portions of the die opening (14, 16) at different times as the cutter plate (38) rotates so as to vary the shape of the extrudable material forced through the opening (14, 16) in the die and thereby create a three-dimensional shape. The cutter plate (38) is configured to fully obstruct the opening in the die during each revolution of the cutter plate so as to separate the extrudable material forced through the opening in the die into individual objects.
Patent CA-2202828-A1 (CA)
Title: A violin chin rest pad
Inventor: SIEB CALVIN
IPC: G10D3/18
Filed: 1997-04-16
Abstract: A violin chin rest cushion manufactured from cosmetic foam and contoured to fit the shape of a violin chin rest. The bottom surface of the chin rest pad has a strong plastic film attached to it. The strong plastic film is coated with a self-adhesive flexible adhesive bonding agent to removably adhere the pad to the chin rest of the instrument. The adhesive flexible bonding agent is protected until use by a peel-away cover. The cushioning material is stable, durable, non-flaking, moisture absorbent, flexible, non-irritating, non-peeling and resistant to skin oils.
Patent CA-2208302-A1 (CA)
Title: Aluminium reflector with composite reflectivity-enhancing surface layer
Inventor: GILLICH VOLKMAR
IPC: G02B5/08
Filed: 1997-06-19
Abstract: Reflector having a composite reflectivity-enhancing layer as reflecting surface layer on a reflector body where the said composite layer has an outer layer facing the radi ation to be reflected, the HI-layer, with a refractive index n2, and, between the reflector body and the outer layer, an LI-layer with a refractive index n1 which is smaller than n2 and the LI and HI layers are .lambda./4 layers. The HI layer is a sol-gel layer and the optical la yer thickness d opt,1 of the LI layer and d opt,2 of the HI layer are such that d opt,i=d i.n i=l i..lambda./4~20 nm, i = 1 or 2 where d1 represents the thickness of the LI layer in nm, d2 the thickness of the HI layer in nm, .lambda. the average wavelength in nm of the light striking the reflector su rface and l1, l2 are uneven natural numbers. The LI layer is a barrier layer of aluminium oxide made by anodising, or a sol-gel layer.
Patent CA-2210321-A1 (CA)
Inventor: MAUGER FREDERIC
IPC: A61K9/26
Filed: 1996-01-26
Abstract: The present invention relates to a delayed-release pharmaceutical composition which is in the form of tablets prepared by direct tableting and consisting of at least one active principle and a matrix which gives the said composition its delayed-release effect, characterized in that the said matrix consists at least in part of pregranulated polysaccharides of high molecular weight and of synthetic or natural origin.
Patent CA-2210370-A1 (CA)
Title: Frame buffer for multimedia terminal
Inventor: RISTAU GERHARD R
IPC: H04N5/00
Filed: 1997-07-11
Abstract: A multimedia terminal for adapting audio-video signals into a digital data netwo rk is provided. The terminal comprises a video decoder, a video encoder, a frame buffer, and a h ost processor coupled to the frame buffer. The frame buffer has a plurality of memor y fields, a system time clock that is switchable from a free running clock to being locked t o the analog video signals and a frame buffer logic control circuit which controls the flow o f data in and out of the memory fields. The frame buffer is able to operate in two distinct mo des.
Patent CA-2210656-A1 (CA)
Title: Receptor specific transepithelial transport of immunogens
Inventor: BLUMBERG RICHARD S
IPC: A61P37/04
Filed: 1996-01-17
Abstract: Methods and products for modulating am immune response are provided. Pharmaceuti cal preparations contain a conjugate of an antigen and an FcRn binding partner. The conjugates are administered to mammals in effective amounts to modulate the immune system by stimulating the immune response against the antigen or tolerizing the immune system to the antigen. The antigen may be characteristic of a pathogen, of an autoimmune disease, of an allergen or of a tumor.
Patent CA-2210739-A1 (CA)
Inventor: BOUEVITCH OLEG
IPC: G01N21/21
Filed: 1997-07-17
Abstract: A method for the monitoring and/or evaluation of buffing of an alignment layer of a liquid crystal.  The method comprises buffing said alignment layer and monitoring said buffing using spectroscopic ellipsometric analysis at at least one location on said alignment layer and at at least one orientation of said alignment layer. Preferably, the monitoring comprises determination of optical anisotropy of the alignment layer.
Patent CA-2211168-A1 (CA)
Inventor: JONES M LEE
IPC: B65D5/02
Filed: 1996-01-27
Abstract: A box (32) for containing goods during storing, mailing, or shipping. The box has at least one end panel (24) secured to a body panel (20) by a locking tab (38) extendable through a slit (31) in a closure flap (29) of the end panel, so that the end panel cannot be unsecured without providing visible evidence of tampering. The locking tab is foldable for insertion through the slit, after which a surface (49) of the locking tab engages the underside of the flap to prevent withdrawing the locking tab through the slit. Flanges (86) on the locking tab engage the locked box, further preventing withdrawal of the locking tab. The locking tab is joined to the remainder of the box by perforated lines (40, 45) of selected weakness, which tear to provide visible evidence of tampering with the locking tab. Opening tabs (T) in the locking tab facilitate opening the box.
Patent CA-2212694-A1 (CA)
Title: Sheet separating and feeding device
Inventor: DOERY MICHAEL S
IPC: B65H3/54
Filed: 1997-08-08
Abstract: A sheet separating and feeding device for use as a component of a sheet processing apparatus is disclosed in which a first feeding device acts on the top of a stack of sheets to feed the top sheet toward a take away feeder for removal from the stack, during which a retaining device applies a force to the upper surface of the exposed trailing edge portion of the next to top sheet to apply a retaining force thereto and to the rest of the stack, and simultaneously lifts the first feeding device off of the top sheet to remove thenormal force from the weight of this device from the stack. When the top sheet is entirely removed from the stack, the first feeding device is lowered toengage the new top sheet and the retaining force is removed therefrom so that it can now be fed to the take away feeder.
Patent CA-2215111-A1 (CA)
Title: Selected soluble esters of hydroxyl-containing indolocarbazoles
Inventor: HUDKINS ROBERT L
IPC: A61K31/55
Filed: 1996-04-03
Abstract: Esters of hydroxyl-containing indolocarbazoles and acids containing selected solubilizing groups are provided. Compositions including the indolocarbazole esters and methods for the use of the indolocarbazole esters are also provided.
Patent CA-2215628-A1 (CA)
Title: Well control systems employing downhole network
Inventor: HOLCOMBE MICHAEL W
IPC: E21B43/12
Filed: 1997-09-16
Abstract: A plurality of downhole control systems interconnected by a network including a server for monitoring and controlling network communications. Each downhole control system is associated with a zone in one or more wells. The downhole control systems communicate directly with each other transferring information and commands as necessary. The downhole server monitors network communications to resolve data collisions and provides supervisory functions.
Patent CA-2216150-A1 (CA)
Title: Epithelial adhesive lactobacilli
Inventor: JEPPSSON BENGT
IPC: A61K35/747
Filed: 1996-03-25
Abstract: The invention refers to the use of Lactobacillus plan-tarum having a mannose-specific adhesin for the prepara-tion of a pharmaceutical composition inhibiting the bind-ing of pathogenic bacteria expressing mannose-specific ad-hesins to the epithelial cell surface. A strain of Lactobacil-lus plantarum which can be used in the invention adheres to D-mannose-coated agarose beads, and preferably belongs to a cluster of L. plantarum with more than 70 % similar-ity to L. plantarum 299 in terms of REA. The invention also refers to the use of said strains for the preparation of a phar-maceutical composition to be used in prophylatic and/or curative treatment of bacterial translocation, gastroenteritis and other diseases caused by pathogenic bacteria express-ing mannose-specific adhesins.
Patent CA-2217727-A1 (CA)
Inventor: ZIMMER ARTUR M
IPC: A23L3/22
Filed: 1996-04-02
Abstract: L'invention concerne un procédé et un appareil de stérilisation. Selon ce procédé, une rangée d'échangeurs de chaleur à transitions échelonnées (14) est utilisée pour augmenter la température d'un produit alimentaire coulant d'arrivée avant que ledit produit ne soit introduit dans une chambre de stérilisation (28) dans laquelle il est déchargé en chute libre sous forme de pellicule. De la vapeur de stérilisation est injectée dans la chambre de stérilisation et totalement absorbée par le produit alimentaire coulant. De ladite chambre (28), le produit contenant la vapeur absorbée est amené vers une enceinte à vide (60) dans laquelle une partie de l'eau contenue dans le produit s'évapore à nouveau rapidement et est extraite pour un traitement ultérieur dans les échangeurs de chaleur et pour être recyclée vers le générateur de vapeur en amont de la chambre de stérilisation.
Patent CA-2220821-A1 (CA)
Inventor: BAI RUNYUAN
IPC: F17D1/16
Filed: 1997-11-12
Abstract: Average grade oil sand is mixed with water to produce a low temperature (20 - 35°C), dense (1.4-1.65 g/cc) slurry. The slurry is pumped through a pipeline for sufficient time to condition it. Air is injected into the slurry after the last pump. The slurry density is adjusted to about 1.5 g/cc by adding flood water near the end of the pipeline. The slurry is introduced into a primary separation vessel (PSV), excess air is vented from the PSV contents and a hot water underwash is used to heat the froth produced. Bitumen froth is recovered. When fed low grade oil sand, the process is modified by adding flotation aid chemicals to the slurry in the pipeline and subjecting the PSV tailings and middlings to secondary recovery with agitation and aeration in a secondary separation vessel.
Patent CA-2221466-A1 (CA)
Inventor: MANTOKU HITOSHI
IPC: H01M50/494
Filed: 1997-11-18
Abstract: The present invention relates to a porous or microporous film of a high molecular weight polyolefin excellent in strength and air-permeability and suitable for use in filtering materials, separators for aqueous electrolyte batteries, separator films for batteries, separator films for electrolytic capacitors, and air-permeable films; for moisture-permeable water-proof use such as paper diapers and house-wrapping films; and for other uses such as cloths, package and printing, as well as a process for producing same. The feature of the present invention resides in an aspect that the film is composed of fibrils comprising extended-chain crystals and lamellar crystals and/or fibrils comprising helicoidal crystals. This porous film of a high molecular weight polyolefin is produced by subjecting an air-impermeable film of a high molecular weight polyolefin to thermal treatment followed by, if necessary, a stretching treatment and/or a thermosetting treatment.
Patent CA-2221772-A1 (CA)
Title: Dental impression tray
Inventor: LENCHNER NATHANIEL H
IPC: A61C9/00
Filed: 1996-05-23
Abstract: The modulus of elasticity and yield strength of a rigid core rod (24) are set within predetermined limits as to limit the elastic deformation and prevent plastic deformation of a dental tray (20) during multiple impression taking, bite registration, and subsequent handling. The tray (20) is formed with a frame (22) which provides a positive recovery force when it is flexed. The cross section of the core rod (24) may be optimized to further limit deflection in a predetermined plane. Various preferred materials including non-woven spun bonded filaments are selected for supporting impression material (30) on the tray (20) while minimizing the likelihood of obstructing a patient's teeth during full occlusion.