baber/WOPTO huggingface dataset:
Patent CA-2083197-C (CA)
Title: Use of imidazole-2-thione as complexing agent in displacement tin plating
Inventor: ARDUENGO ANTHONY J III
IPC: C23C18/31
Filed: 1992-11-18
Granted: 1998-01-06
Abstract: An environmentally innocuous effective replacement for thiourea is disclosed for use as a complexing agent in displacement plating processes in which the plating solution is applied to the substrate surface to be plated  by immersion or by spraying, cascading, pouring and the like. The replacement complexing agent is an unsymmetrical dialkylimidazole-2-thione compound having the formula:                            (see fig. I) wherein A is methyl or ethyl, and when A is methyl, B is a C3 to C6 alkyl or cycloalkyl group, and when A is ethyl, B is a C4 to C6 alkyl or cycloalkyl group.  Of this class of compounds, 1-methyl-3-propyl-2-thiocarbonyl-2,3-dihydroimidazole is preferred for immersion tin plating. This class of complexing agents is particularly useful in spray displacement tin plating for the manufacture of printed circuit boards wherein free tin metal is added to the plating solution.
Patent CA-2086329-C (CA)
Title: Anti-kick forward device for radial arm saws
Inventor: MAYFIELD ALFRED B
IPC: B23D45/02
Filed: 1991-06-26
Granted: 2003-09-09
Abstract: A saw includes a mounting arm (24), a carriage (26) mounted on the arm (24) for linear movement in first and second di-rections along the arms (24), a saw blade (30) mounted on the carriage (26) for rotational movement relative to the carriage (26) about an axis of rotation extending in a direction transverse to the linear direction of travel of the carriage (26), and a motor (32) adapted to rotate the saw blade (30) about the axis of rotation for carrying out a sawing operation. A kick-preventing assembly (36) is provided for limiting the maximum speed at which the carriage (26) may be moved in the first direction to a predetermined speed the kick-preventing means (36) permitting the carriage (26) to be moved in the first direction at any speed equal to or less than the predetermined speed while preventing the carriage (26) from kicking along the arm (24) in the first direction at a speed greater than the predetermined speed.
Patent CA-2086877-C (CA)
Title: Security bands to prevent counterfeiting with color copies
Inventor: KENDRICK JIMMY RAY
IPC: B42D15/10
Filed: 1993-01-07
Granted: 2003-09-16
Abstract: protected/security document is provided that foils counterfeiting even if a laser photocopy machine (such as a Canon*500 color copier) is utilized. The document has at least three discrete half-tone printed bands disposed on its surface, provided by dots or lines. Each printed band has a different screen density and within each bands the dots or lines comprise a warning word or symbol (e. g. "Void"), or a background. The dots or lines of either the "Void" or background drop out when photocopied, while the dots or lines of the other do not. The dots or lines that do not drop out may be dimensioned so that there are about 24-34 per centimeter, while for those that do drop out there are about 52-64 per centimeter. The bands are typically arranged either linearly or in concentric circles, and interband areas having density gradually transitioning between the densities of adjacent bands are provided. The total density variation between discrete bands is typically about 10-35%, depending upon ink color, typically about 1.0-10% gradation between adjacent bands. Full tone indicia, which does readily reproduce, is also printed on the substrate.
Patent CA-2087543-C (CA)
Inventor: KRENITSKY THOMAS ANTHONY
IPC: A61K31/7042
Filed: 1991-07-18
Granted: 1998-08-25
Abstract: Description de dérivés 6-alcoxylés d'Ara-G et de leurs sels de qualité pharmaceutique, utiles pour le traitement des tumeurs,  acceptable esters thereof, are described as being useful in tumour therapy. Novel pharmaceutically acceptable esters, their preparation and pharmaceutical formulations containing them are also disclosed.
Patent CA-2091030-C (CA)
Title: Device for uprighting containers from a position with their axis horizontal to a position with their axis vertical
Inventor: LUSETTI WILDER
IPC: B65G47/248
Filed: 1993-03-04
Granted: 2004-06-29
Abstract: A device for uprighting containers from a position with their axis horizontal to a position with their axis vertical comprises a circular plate (3) fixed to true end of a shaft (5) of horizontal axis by means of a support structure (4) arranged to undergo stepwise rotations of 180° in synchronism with a container feed line (1); two parallel shafts (14, 15) symmetrically arranged about a diameter of the plate (3) and each carrying, at that end facing away from the plate, a receptacle (18) for seizing the containers, said shafts being connected mechanically such as to undergo equal rotations in the same direction, and carrying the receptacles (18) thereon with their axes mutually perpendicular; and a fixed positive-acting cam (25) within which there engages the end of a rocker arm (23) pivoted on the plate (3), its opposite end rotating one of the shafts (14 or 15) by means of a mechanism comprising a connecting rod-crank unit. (21, 22).
Patent CA-2094319-C (CA)
Title: Speech signal encoder/decoder device in mobile communication
Inventor: UNNO YOSHIHIRO
IPC: B60R16/023
Filed: 1993-04-19
Granted: 1998-08-18
Abstract: In a mobile communication system, a speech signal is transmitted without discontinuity even when transmission channels are switched during communication. A control circuit issues a control signal, in response to a switching timing of the transmission channels, to an initialization circuit. Theinitialization circuit initializes contents in a memory in a speech signal encoder circuit in response to the control signal. Because the memory contents in the encoder circuit are initialized with the switching timing of the transmission channels, the influence of previous speech codes, and hence the discontinuity, are eliminated.
Patent CA-2095057-C (CA)
Title: Production of sterile milk through dynamic microfiltration
Inventor: DEGEN PETER JOHN
IPC: A23C3/00
Filed: 1993-04-28
Granted: 1998-06-16
Abstract: A method for treating raw milk to produce treated milk having a lower bacterial content than the raw milk. The milk is homogenized and within about 5 minutes from the homogenization, subjected to dynamic microfiltration, to yield a filtrate which has a lower bacterial content than the initial raw milk.  The resultant milk can be sterile, free from Bacillus cereus bacteria that usually causes degradation of milk quality during refrigerated storage.  The milk can be shipped even under non-refrigerated conditions without spoilage, for extended periods of time.
Patent CA-2097615-C (CA)
Inventor: MOK STEVEN LAI-KWOK
IPC: D01F6/80
Filed: 1991-12-11
Granted: 2002-12-17
Abstract: A partially crystalline copolyamide formed from an aromatic carboxylic acid that is terephthalic acid or a mixture of ter-ephthalic acid and isophthalic acid containing less than 40 % of isophthalic acid, and an aliphatic diamine that is a mixture of hexamethylene diamine and 2-methyl pentamethylene diamine. The aliphatic diamine is at least 44 %, molar basis, of hexamethy-lene diamine and the amount of isophthalic acid plus 2-methyl pentamethylene diamine is in the range of 15-35 %, molar basis. of the total amount of aromatic carboxylic acid and aliphatic diamine. The copolyamides have a melting point of 280-330 °C. The copolyamide preferably has a heat of fusion of greater than 17 J/g. The copolyamide may be moulded into articles, spun into fi-bres or formed into films, and used in a wide variety of end-uses especially where high temperature properties are required.
Patent CA-2098648-C (CA)
Inventor: ALPERN MARVIN
IPC: A61B17/06
Filed: 1993-06-17
Granted: 2004-10-19
Abstract: A suture package is designed to facilitate automated loading of multiple needles and sutures into the package. The package includes a tray, for containing the needles and sutures, and a cover. The sutures are contained in a peripheral channel of the tray and an array of resilient cantilevered fingers prevent the sutures from lifting up out of the channel.      Needle parks retain the needles that are attached to the sutures. In another embodiment of the invention, a package far retaining a wound suture and attached needle includes a tray fox containing the needle and suture, including cover-latching elements that each have two vertical surfaces. Tabs on the removable cover each contact a surface of a corresponding latching element and have a free element that engages a shoulder of the element.
Patent CA-2104853-C (CA)
Inventor: RODRIGUEZ EGA A TOMAS
IPC: B65D85/48
Filed: 1993-08-25
Granted: 1997-04-15
Abstract: A disposable packing for the transport of flat glass sheets comprising an assembly of upstanding posts made from wood and spaced from the internal walls of a container by means of a plurality of vertically spaced outwardly extending arms of which the outer ends mate with the container wall.  The inner ends of the arms are disposed on the posts at a predetermined angle relative to the outer ends so that in use the posts are inclined relative to the container walls of the container.  The posts are fixed at their base to supporting boards disposed on the floor of the container.  These supporting boards have a flexible cover where the flat glass sheet packages rest on.  The "packages" are placed one adjacent to the other and are spaced between them by means of cardboard or StyrofoamTM  spacers, there also being StyrofoamTM or plush strips disposed on the face of the upstanding posts where the lateral thrust of the glass packages is applied.  A horizontal retaining element of rectangular cross-section, having its longer sides provided with a flexible cover to rest against the inner glass packages and having a predetermined angle of inclination corresponding to the angle of the posts, forms the central horizontal fixing means for the packages.  This horizontal retaining element is located at the center of the packing and there may be one or more of such elements linked between them, these being the central fixing means for the packages.  Other longitudinal retaining elements secure the end edges of the sheet glass packages to the other walls or the floor of the container.
Patent CA-2106708-C (CA)
Title: Image processing apparatus and method thereof
Inventor: SASANUMA NOBUATSU
IPC: H04N1/00
Filed: 1993-09-22
Granted: 2000-01-25
Abstract: When a predetermined pattern (e. g. a pattern indicating the serial number of a copying machine) is added on an image formed on a recording paper, the image formation apparatus according to the invention suppresses fog appeared by addition of the predetermined pattern in the vicinity of the image. More particularly, a control circuit which inputs and processes an image signal estimates the leading and ending edge position of the recording paper with respect to the transferring direction and the edge which is perpendicular to the transferring direction of the recording paper based on the signal obtained from an ITOP generation circuit and BD detector. Accordingly, an effective area for image formation on the recording paper is obtained and the modulation amount for adding the predetermined pattern is controlled in accordance with the position on the recording paper to which the predetermined pattern is outputted.
Patent CA-2107937-C (CA)
Title: Oscillating air dispensers for microwave oven
Inventor: SMITH DONALD P
IPC: G07F9/10
Filed: 1993-10-07
Granted: 2002-08-20
Abstract: Apparatus for transferring heat between temperature controlled air dispensed from a pair of oscillating ducts and a food product in a cabinet having an interior compartment bounded by front, side and rear walls. A foraminous partition, having a central portion and extremities, is mounted to divide the interior of the cabinet into a cooking chamber and an air conditioning chamber. It is configured to encircle a portion of the cooking chamber such that the air conditioning chamber extends around a major part of the periphery of the cooking chamber wherein air is drawn along multiple paths toward side walls and toward the rear wall from the cooking chamber.
Patent CA-2110643-C (CA)
Title: Method of telephone signalling via data link
Inventor: PINARD DEBORAH L
IPC: H04Q3/00
Filed: 1993-12-03
Granted: 1997-07-08
Abstract: The present invention relates to a method of processing calls in a telephone switching system which is comprised of voice trunks and a message signalling link for carrying signalling data relating to calls on the voice trunks, and a processor for controlling the switching system, comprised of receiving an incoming signalling message on the signalling link, converting the message into signalling messages of a type recognizeable by the processor as received from a voice trunk, and including a signalling trunk identification address, looking up in a table, a correspondence between the signalling trunk identification address and a voice trunk identification address, passing the messages with the voice trunk identification address replacing the signalling trunk identification address to the processor, and processing the call in the switching system as if the messages had come from the voice trunk.
Patent CA-2111358-C (CA)
Title: Synthetic crystalline zeolite, its synthesis and use
Inventor: BENNETT JOHN M
IPC: C01B39/48
Filed: 1992-06-18
Granted: 2003-03-25
Abstract: A synthetic crystalline zeolite, MCM-49, has in its as-synthesized form an X-ray diffractian pattern including values sub-stantially as set forth in table (1).
Patent CA-2115770-C (CA)
Inventor: JUDY MILLARD M
IPC: G02B6/36
Filed: 1992-08-11
Granted: 1996-09-10
Abstract: A tip for mounting upon a distal end portion (14) of a flexible elongated light transmitting fiber (16) is provided.  An elon-gated body has a distal head portion (24) and has a plurality of flexible legs (26, 28) extending proximally from the head portion. A clamping arrangement (20) is operably associated with the body for urging the legs radially inward to clamp the distal end por-tion (14) of the fiber therebetween.  The mounting arrangement is particularly suited for use with laterally reflecting tips, and such a tip has a lateral passageway (88) providing the ability to flush fluid across the reflecting surface (38) of the tip in order to keep the same clean.  Improved reflecting surfaces are also disclosed.
Patent CA-2117369-C (CA)
Title: Wire drawer
Inventor: LAENN PER T
IPC: A47B88/14
Filed: 1993-01-06
Granted: 1999-10-05
Abstract: Wire drawer with a ribbon shaped upper rim (11). To this rim a guide roller (14) is attached at each of two adjacent corners. To carry this roller, the rim is bent down at the corner to make a lug (12) which is perpendicular to the plane of the rim. The axle (15) of the roller is attached in a central area of this lug to hold the roller within the outer edge (17) of the rim, but extending above its upper level.
Patent CA-2118056-C (CA)
Inventor: KAGAWA SEIJI
IPC: B29L7/00
Filed: 1994-10-13
Granted: 1997-12-16
Abstract: Disclosed is a porous film manufacturing apparatus which can regularly form a large number of non-through pores with a fine opening width of sub-µm to several tens µm at a high density in elongated films made of various materials, with almost no deterioration in the essential characteristics of the film materials.  This porous film manufacturing apparatus includes a feed unit for feeding an elongated film, a perforating unit including a first block having a surface on which a large number of diamond particles with acute corner portions are deposited, a second block having a surface on which a desired protruding pattern is formed, and an elastic organic polymer sheet so arranged as to cover at least the protruding pattern of the second block, the first and second blocks being arranged such that the particle-deposited surface of the first block and the organic polymer sheet oppose each other, and a pressurizing unit for moving the movable block toward the stationary block until the distance between projecting ends of the particles and the surface of a portion of the organic polymer sheet located on the protruding pattern becomes smaller than the thickness of the elongated film fed to a position between the movable and stationary blocks, thereby pressing the acute corner portions of the particles into the elongated film in a region opposing the protruding pattern.
Patent CA-2118557-C (CA)
Inventor: HARROGATE IAN WILLIAM ROBERT
IPC: F02C7/00
Filed: 1994-03-08
Granted: 2002-12-10
Abstract: A turbine nozzle assembly comprises an annular array of nozzle guide vanes (24) located downstream of a combustor discharge casing (40). Each nozzle guide vane (24) comprises an aerofoil portion (25) which is cast integrally with a radially inner platform (26) and a radially outer platform (30). The radially outer platform (30) of each nozzle guide vane (24) has an extension (34) to provide a smooth transition of the gases from the combustor discharge casing (40) to the nozzle guide vanes (24). Two rows of cooling holes (38) are provided in the extension (34) to film cool inner surface (31) of the platform (30). A method is described to calculate the diameter of each of the cooling holes (38) so that a uniform flow of cooling air passes over the inner surface (31) of the platform (30).
Patent CA-2119287-C (CA)
Title: Multipole circuit breaker with modular assembly
Inventor: PAYET-BURIN JEAN-LUC
IPC: H01H73/48
Filed: 1994-03-17
Granted: 2000-10-03
Abstract: Each breaking module (14) is formed by a parallelepipedic monoblock cartridge (26) made of plastic material, housed in the corresponding compartment (96), (98), (100) of the base plate (88), said cartridge housing at least a stationary contact (34), (36), an arc extinguishing chamber (84), and a pair of connecting strips (38), (42) for connection to a terminal (40) and to the trip module (46) of the same pole. A mechanical actuation module (122) constituted by the switching bar (82) and mechanism (60) assembly, is securedly united to the cover (90). The rotary trip bar (52) is supported by clipping means (138), (140) arranged on the bottom face of the cover (90). A plurality of recesses (114), (116) and cutouts (138), (140) are arranged in the spacers (94), (95) of the base plate (88) to act as first bearing surfaces respectively for the switching bar (82) and trap bar (52) when the first sub-assembly A composed of the base plat a (88) with the set of breaking modules (14) and trip modules (46), (46a) is adjoined with the second sub-assembly B formed by the cover (90) on which the mechanical actuation module (122), trip bar (52) and latch (58) are fitted.
Patent CA-2120514-C (CA)
Title: Synthetic dna sequence having enhanced insecticidal activity in maize
Inventor: KOZIEL MICHAEL G
IPC: A01H5/10
Filed: 1992-10-05
Granted: 2008-08-05
Abstract: DNA sequences optimized for expression in plants are disclosed. The DNA sequences preferably encode for an insecticidal polypeptides, particularly insecticidal proteins from Bacillus thuringiensis). Plant promoters, particular tissue-specific and tissue-preferred promoters are also provided. Additionally disclosed are transformation vectors comprising said DNA sequences. The transformation vectors demonstrate high levels of insecticidal activity when transformed into maize.
Patent CA-2124379-C (CA)
Inventor: LA PORTA THOMAS F
IPC: H04L29/06
Filed: 1994-05-26
Granted: 1998-10-27
Abstract: A distributed, server-based communications network architecture delivers broadband and narrowband communications services. In the architecture, various traditional call processing functions, such as switching fabric or channel control, call control, and connection control are separated into distinct application processes with clearly defined interfaces for communications between these application process. Those distinct application processes may be implemented in separate physical or logically partitioned nodes. The well-defined interfaces allow communications among: a) physical or logically partitioned nodes within a network and b) physical or logically partitioned nodes of other networks.
Patent CA-2127371-C (CA)
Inventor: HESS RANDALL L
IPC: G06F3/033
Filed: 1993-01-20
Granted: 1999-02-23
Abstract: A user interface of simplifying selection of speaker volume level and power conservation level in a computer system. An icon is presented for setting the speaker volume which includes a bar graph of relative speaker volume. By depressing left or right arrow keys the graph moves and the volume level of the speaker is changed. By depressing the down arrow key when setting the volume level, the speaker is beeped to allow for a level check during the setting process. A series of icons are used to indicate and select power conservation level. Each icon includes a battery with a faucet attached to the side of the battery. Different water flow rates indicate the various conservation levels. A human figure is located adjacent the faucet to indicate the user-customerized conservation level.
Patent CA-2131168-C (CA)
Inventor: LIN LILY
IPC: A61K41/00
Filed: 1993-02-26
Granted: 2003-05-27
Abstract: Methods and compositions for treating contaminants in material intended for in vivo use, and in particular blood and blood products for human use. Inactivation of contaminants in blood cell preparations prior to long term storage and transfu-sion.
Patent CA-2131248-C (CA)
Inventor: MCKEEN W JOHN
IPC: B29C33/38
Filed: 1994-08-31
Granted: 1999-01-12
Abstract: Making a mold part by a growth process in which polymerizable plastic material is converted into polymerized plastic material at selected regions and, during the growth process, cooling passages are formed. The growth process is provided by polymerizing succeeding layers of plastic material, adjacent layers being bonded together.  Also provided is a mold part made by the growth process.
Patent CA-2140693-C (CA)
Title: Enhanced hip & ridge shingle
Inventor: KUPCZYK STEPHEN J
IPC: E04D1/30
Filed: 1995-01-20
Granted: 1999-01-26
Abstract: The present invention provides a composition ridge or hip covering which creates an appearance similar to that of a wood shake or slate roof. The covering may be easily installed, requires no trimming or folding during installation and may be manufactured with no significant waste of starting material. The covering is accomplished by forming an unfolded sheet of roofing material into a fish-like shape having three distinct portions: a front portion, a body (middle) portion and an end portion. Each portion is tapered and each portion has a specially defined length and taper angle depending upon the shape of the shingle desired. Two thickened multilayers are formed in the body portion by folding the unfolded sheet, one being at the wide end edge of the shingle and the other in the main part of the body portion. The taper angles and lengths of the front portion and end portion are essentially the same.
Patent CA-2141109-C (CA)
Title: Polarization independent optical isolator
Inventor: KONNO YOSHIHIRO
IPC: G02B6/27
Filed: 1995-01-25
Granted: 2004-09-21
Abstract: A polarization-independent optical isolator having a structure in which polarization dispersion is virtually eliminated by selecting the thickness and optical axis orientations of birefringent crystalline plates used in the isolator is disclosed. The optical isolator of the present invention employs a combination of birefringent crystalline plates wherein the optical axis orientation of at least one birefringent crystalline plate in the optical isolator is different from the optical axis orientation of the remaining birefringent crystalline plates, and the polarization mode dispersion, which is induced when the beam propagates through the birefringent crystalline plate having a different optical axis orientation, is equal to the dispersion rate of the polarization mode dispersion attributable to the remaining birefringent crystalline plates and in a mutually inverse direction.