baber/WOPTO huggingface dataset:
Patent CA-2029546-C (CA)
Title: Fuel-fired condensing type forced air heating furnace
Inventor: SHELLENBERGER TIMOTHY J
IPC: F23D14/58
Filed: 1990-11-09
Granted: 1994-03-22
Abstract: A fuel-fired, condensing type forced air heating fur-nace is provided with an improved hot combustion gas-to-air heat exchange system which includes a generally drum-shaped primary heat exchanger having an outlet end connected to a first end of a transfer manifold whose second end is connected the inlet end of a  fin-and-tube  type  secondary  heat exchanger which  is  spaced laterally apart from,  faces, and extends generally parallel to the primary heat exchanger.  A radial discharge fuel burner end portion is coaxially positioned within an inlet end of the pri-mary  heat  exchanger  and,  during  furnace  operation,  a  draft inducer fan draws burner combustion gases sequentially through the primary heat exchanger, the transfer manifold and the secon-dary heat exchanger while air to be heated is flowed externally over these heat transfer elements.   The overall heating effi-ciency of the furnace is improved, and the fabrication cost of the  furnace  is  reduced,  by  the  use of  the  radial  discharge burner, a perforated baffle wall which improves the air heating capacity of the manifold, and a weldless mechanical crimp roll joint construction used to fabricate and interconnect the primary heat exchanger and transfer manifold.
Patent CA-2031457-C (CA)
Title: Mechanical device for use particularly for the synchronous movement of the seat and backrest of a chair
Inventor: MIOTTO LORIS
IPC: A47C1/032
Filed: 1990-12-04
Granted: 2000-02-01
Abstract: A device for the synchronous movement of the seat and backrest of a chair uses a first support bracket which at one end thereof is connected to a chair pedestal.      A second bracket fastened to the seat is pivotally connected to the other end of the first bracket. A third bracket fastened to the backrest is pivotally connected to the second bracket. Means are provided for guiding the tilt of the third bracket relative to the first and second brackets. The guiding means can also be used to block the common position of the first, second and third brackets. The occupant of a chair can obtain an optimal ergonomic position that eliminates numbness associated with being seated for a long period of time.
Patent CA-2031543-C (CA)
Title: Rigid lid for an automobile roof
Inventor: HATTASS RAINER
IPC: B60J10/82
Filed: 1990-12-05
Granted: 1994-08-16
Abstract: A  rigid  lid  with  edge gap seal for an automobile roof, which  may  be  constructed  either as a glass lid or as a sheet  metal  lid,  comprising an edge gap sealing profile to  be  fixed  directly  to  the  lid  for  the purpose of compensating   dimensional  variations  of  the  edge  gap between  automobile roof and lid, into which profile a gap compensating   element, permanently  deformable  in  the transverse   direction,   is   moulded   in.    The  gap compensating  element  is  formed  of  a  downwardly  open U-profile,  the  inner  flange  of  which  is  constructed non-deformable  and  is held to the outer periphery of the lid,  and  the  outer  flange of which is flexible for the purpose of dimensional change.
Patent CA-2034158-C (CA)
Title: Array antenna with slot radiators offset by inclination
Inventor: KELLY KENNETH C
IPC: H01Q21/06
Filed: 1991-01-15
Granted: 1995-01-17
Abstract: An antenna (20) is formed of a two-dimensional array of radiating apertures disposed in rows (22) and columns (24), each of the radiating apertures being formed as slots (40) within a top broad wall (28) of a waveguide (26).   The width  of the broad  wall  is many  times greater than the height of a sidewall (32, 34) of the waveguide,  the waveguide having a rectangular cross section.  A wave launcher (56) connected to a first end wall (36) of the waveguide launches a higher-order mode of electromagnetic wave wherein the order of the mode is equal to the number of columns of the radiating elements.   The top broad wall  (28)  has an enlarged thickness   of   approximately  one-eighth   free-space wavelength.  Each of the slots extends via a passage (46)  from an input port  (48)  at an interior surface (52) of the top broad wall to an output port (50) at an exterior surface (54) of the top broad wall.  All of the slot output ports are centered at the locations of maximum  intensity  of  electric  field.   In  order  to provide for magnetic coupling from an electromagnetic wave within the waveguide to longitudinal sides of each slot, each slot passage is inclined so as to displace the slot input port to a location wherein there is sufficient magnetic  field component parallel to the slot to couple power from the wave to be radiated from the antenna.   Inclinations of successive ones of the slot passages are staggered for coupling from magnetic wave components of equal polarization and phase.
Patent CA-2038737-C (CA)
Inventor: BOUCHER DIDIER
IPC: H04R1/44
Filed: 1991-03-21
Granted: 2001-08-21
Abstract: L'invention a pour objet des procédés et des transducteurs électro-acoustiques pour émettre des ondes acoustiques à basse fréquence dans un liquide.  Un transducteur électro-acoustique selon l'invention est un transducteur du type double-tonpilz, comportant deux moteurs électro-acoustiques (1a, 1b) alignés de part et d'autre d'une contre-masse centrale (2) et entre deux pavillons  (3a, 3b). Cet ensemble mécanique est placé dans un boîtier rigide (4) qui comporte des ouvertures latérales (5) et qui délimite une cavité (7) dans laquelle sont placés des tubes élastiques (6), fermés à leurs deux extrémités et remplis de gaz et la fréquence de résonance de Helmholtz de la cavité (7) est voisine et, de préférence, inférieure à la fréquence fondamentale des vibrations axiales de l'ensemble vibrant.  Une application est la construction de transducteurs émetteurs de type double-tonpilz à basse fréquence ayant une large bande passante.
Patent CA-2040157-C (CA)
Title: Artificial flowers
Inventor: KOO GEORGE YUE SIN
IPC: A41G1/00
Filed: 1991-04-10
Granted: 2000-07-18
Abstract: An artificial bloom resembling a dried flower having a number of petals made from synthetic fabric in which the fabric at the tips of the petals has been melted or fused, eg. by a hot air stream, to give the appearance of a dried flower.
Patent CA-2042790-C (CA)
Title: Method for collecting data by a manufacturing process manager from a plurality of programmable logic controllers
Inventor: FAETT JOHN H III
IPC: G05B19/05
Filed: 1991-05-16
Granted: 2001-12-18
Abstract: A data collection method is provided for use on a computer system including a host processor which is coupled to a plurality of programmable logic controllers (PLCs) via a communications bus. Each PLC is coupled to a respective controlled machine to gather Boolean alarm point information from several alarm points associated with that machine. The alarm point information from all the controlled machines is stored in a random access memories (RAM) in a respective PLC. The alarm points are grouped in memory such that a predetermined number of alarm points are stored in a trigger point register in the RAM. The host scans the trigger point registers of all the PLCs to determine if the value of any trigger point has changed since the last time such trigger point was scanned. If such a change of value in a particular trigger point is found, then the host requests that the value of each alarm point within that particular trigger point be transmitted to the host. An appropriate alarm is.then annunciated to the user. However, if the host finds no change in the value of a particular trigger point from the value of that trigger point during a prior scan, then the host does not request the values of the individual alarm points associated with that trigger point.
Patent CA-2045267-C (CA)
Inventor: ITOZAKI HIDEO
IPC: H01L39/24
Filed: 1991-06-21
Granted: 1998-12-08
Abstract: A process for preparing a thin film of high-temperature compound oxide superconductor on a substrate by magnetron sputtering method. A substrate and a target are arranged in parallel with each other in a vacuum chamber and one of the substrate and the target is moved relatively and in parallel with another during the thin film is formed by sputtering.
Patent CA-2045615-C (CA)
Title: Animal attracting litter
Inventor: NELSON THOMAS E
IPC: C11B9/00
Filed: 1990-08-17
Granted: 1993-08-17
Abstract: ABSTRACT OF THE DISCLOSURE     An animal litter capable of attracting animals comprising litter material mixed with a rosin oil and a method of preparing same.
Patent CA-2046178-C (CA)
Title: Magneto-optical disk with lubricant film
Inventor: NAKAYAMA JUNICHIRO
IPC: G11B11/105
Filed: 1991-07-04
Granted: 1999-11-09
Abstract: A magneto-optical disk comprises a substrate, a recording layer formed on the substrate, and a solid-lubricant film, whereon slides a flying-type magnetic head used for recording and/or reproducing. The solid-lubricant film is formed on the recording layer, and is made of polyolefin containing a perfluoroalkyl group, or of glassy carbon. Adhesion of the flying-type magnetic head to the surface of the magneto-optical disk and scattering of the lubricant occur less easily because of the solid-lubricant film. The solid-lubricant film is formed by sputtering target material with argon ions, the target material being achieved by kneading polytetrafluoroethylene powder with perfluoropolyether. An external magnetic field of substantially constant intensity can be applied on the recording layer because the solid-lubricant film is substantially uniform in thickness.
Patent CA-2046224-C (CA)
Title: Process of making ready-to-eat cereals
Inventor: CALANDRO THOMAS P
IPC: A23L1/164
Filed: 1991-07-04
Granted: 2003-10-14
Abstract: A ready-to-eat cereal is prepared from a cookie formulation, including flour, sugar, shortening or fat and a bowl-life extender. The bowl-life extender includes a waxy starch, preferably a pregelatinized starch from waxy maize in an effective amount to improve the bowl life of the cereal pieces without causing the cereal pieces to become excessively firm.      A cold water swelling granular starch is also included with the pregelatinized waxy starch to improve bowl life of the cereal. The dough is prepared by mixing the ingredients to form a cookie dough-like consistency. The dough may be rotary molded or sheeted and cut into bite-size pieces and baked to leaven the cereal pieces. The baked pieces may then be coated with an optional sugar glaze.
Patent CA-2055138-C (CA)
Title: Polymers and their use for flexible intraocular lenses
Inventor: NAMDARAN FARHAD H
IPC: C08F220/38
Filed: 1991-11-07
Granted: 1998-09-29
Abstract: High refractive index copolymers comprised of monomers having the formula:                        wherein X is H or CH3; m  is 0-10; Y is nothing, O, S, or NR wherein R is H, CH3, CnH2n+1 (n=1-10) iso OC3H7, C6H5, or CH2C6H5; Ar  is  an  aromatic  ring which  is  unsubstituted or substituted with H, CH3, C2H5, n-C3H7, iso-C3H7, OCH3, C6H11, Cl, Br, C6H5 or CH2C6H5; and n  is 1-5; and a cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed.   Intraocular lenses made of the copolymers which can be inserted into an aphakic  eye  through  a  relatively  small  incision  are  also disclosed.
Patent CA-2057845-C (CA)
Inventor: TERRY WILLIAM M
IPC: A61L11/00
Filed: 1991-12-17
Granted: 1999-04-20
Abstract: An apparatus for collecting, disinfecting and disposing of body waste materials accumulated from a patient including a pair of adjacent collection chambers each having an upper and a lower end, the upper and lower ends respectively being substantially at the same elevations, a first conduit connecting the lower ends of the collection chambers for communication therebetween, a set of conduits connecting the upper ends of the collection chambers, the set of conduits having a smaller cross-sectional flow capacity than the first conduit, an inlet to the first collection chamber at an intermediate location thereon, and an outlet connected to the second collection chamber at an intermediate location thereon, an inlet conduit having a first end for connection to the inlet to the first collection chamber and an opposite open end for exposing to the waste materials to be collected and a conduit for connection to a predetermined environment to establish the environment in the chamber.  The present apparatus also includes a unit for connection in the apparatus for collecting, disinfecting and disposing of body waste materials including controls therefor for introducing a rinsing and flushing fluid therein and for supplying a quantity of a disinfectant into the apparatus.
Patent CA-2066262-C (CA)
Title: Piezoelectric sound generator and method of its manufacture
Inventor: KITANISHI SHINICHIRO
IPC: H04R17/00
Filed: 1991-05-24
Granted: 1996-02-27
Abstract: A piezoelectric sound generator includes a piezoelectric device consisting of a metal diaphragm and a piezoelectric porcelain plate affixed to the diaphragm, a pair of connecting members having resistors connected to the piezoelectric device in series, a leakage magnetic flux coil connected in parallel to the piezoelectric device and the resistors in series, and a resin case.  The resin case encases the piezoelectric device and containing the resistors, and has a spool for retaining the leakage magnetic flux coil.  In addition, the resin case embraces a portion of the connecting members.  This piezoelectric sound generator is manufactured by the steps of:  soldering the resistors to the connecting members; forming the resin case in an insertion mold into which the connecting members have been placed, whereby a portion of the connecting members is embraced by the resin case; and attaching the piezoelectric device and the coil to the resin case.  The sound generator thus obtained is so accommodated by a handset having sound emission holes that a cavity is defined by the piezoelectric device, the resin case and the handset.
Patent CA-2067004-C (CA)
Title: Slider with yoke for slide fastener and its joining method
Inventor: YOSHIDA HIROSHI
IPC: A44B19/26
Filed: 1992-04-24
Granted: 1995-12-05
Abstract: A novel and improved slider with a yoke for a slide fastener and a novel and improved method for attaching or joining the yoke to the slider body, which may be carried out in simple operation to be attractive in appearance and to provide firm combination between the yoke and the slider body.     The front and rear support posts the slider body are respectively provided with locking groove and the contact faces of the yoke are also provided with bulged portions opposite to the locking grooves.  In a prefferred embodiment, after the support posts are covered with the yoke, a press force is applied to the bulged portion in the forging process to flow the material of the bulged portion into the locking groove so as to provide the firm combination. In the other preferred embodiment, after the yoke is covered on the support posts and is pressed in the deeply covering direction, a part of each support post is deformed by plastic flow to form a bulged portion in the locking groove of the yoke so as to combine the yoke with the support posts.
Patent CA-2067244-C (CA)
Inventor: SHEN LI
IPC: C07K16/00
Filed: 1990-10-19
Granted: 2000-12-19
Abstract: L'invention concerne des anticorps monoclonaux qui réagissent de manière spécifique au récepteur Fc pour IgA de cellules effectrices humaines. Les anticorps sont utiles pour cibler des cellules effectrices humaines (p. ex. des macrophages) contre une cellule cible (p. ex. une cellule cancéreuse, un agent infectieux, etc). A cet effet des anticorps bifonctionnels ou des hétéroanticorps peuvent être construits, lesquels contiennent la région de liaison dérivée d'un anticorps récepteur anti-Fc-alpha et la région de liaison d'un anticorps spécifique à la cible. Les cellules effectrices ciblées peuvent effectuer la lyse spécifique des cellules cibles.
Patent CA-2069187-C (CA)
Title: Inflatable, expandable, retractable arch
Inventor: DELAMARE GUY ROBERT
IPC: E04H3/16
Filed: 1992-05-21
Granted: 2001-01-30
Abstract: The vaulted structure (2) according to the present invention is of the multilobed double-walled type, made up of beams (A, B, C...) which are inflatable and arranged side by side. The vaulted structure (2) comprises at least one unfolding or folding track (8a, 8b) along which the beams are mounted in a sliding manner. Each unfolding or folding track (8a, 8b) passes through the beams (A, B, C...) in a sealed manner. 
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Patent CA-2077249-C (CA)
Title: Device for the positioning of a magazine for the automatic changing of printing plates
Inventor: SPIEGEL NIKOLAUS
IPC: B41F27/12
Filed: 1992-08-31
Granted: 1996-10-01
Abstract: The invention relates to a device for the positioning of a magazine, said magazine being movable into a plurality of positions, with it being possible for positions to be assumed for the changing of printing plates, the replacement of the printing plates of the magazine, machine servicing and normal operation.            Such a device for positioning is to be of such design that as little space as possible is taken up between the printing units and that the magazine fits inconspicuously into the overall printing press during printing.  This is achieved in that the magazine (1) is held in such a manner as to be displaceable in a vertical guide (2) and swivelable about a horizontal shaft (3) and in that drives are provided for displacing and tilting. Thanks to such a design, it is possible to position the magazine (1) in a normal-operation position (A) such that it covers as a protective guard the delivery side of the printing unit (4).  The printing plates are replaceable from above in this normal-operation position (A).
Patent CA-2077668-C (CA)
Title: Decoder for variable-number of channel presentation of multidimensional sound fields
Inventor: DAVIS MARK FRANKLIN
IPC: H04H20/88
Filed: 1992-01-08
Granted: 2001-02-27
Abstract: The invention relates in general to the reproducing of multi-channel signals.  More particularly, the invention relates to the decoding of multi-channel audio signals representing multidimensional sound fields delivered by one or more delivery channels. wherein the complexity of the decoding is roughly proportional to the number of channels used to present the decoded signal which may differ from the number of deliverer channels.
Patent CA-2080784-C (CA)
Inventor: METLITSKY BORIS
IPC: G06F3/0346
Filed: 1992-10-16
Granted: 2003-08-19
Abstract: Several different embodiments are disclosed of a simple, compact or miniature bar code scanner which is capable of scanning in any one of several modes. In a preferred embodiment, the compact bar code scanner is used in a small housing mounted on an index finger of an operator such that the natural pointing direction of the index finger aims the scanner. In one embodiment, a high frequency flexural member, with a scanning mirror and permanent magnet mounted thereon, is supported by a low frequency flexural member. An x drive coil is positioned by the permanent magnet, and with an applied high frequency x drive signal, causes the high frequency flexural member, with the permanent magnet means and scanning mirror mounted thereon, to torsionally oscillate at the frequency of the x drive signal. A y drive coil is also positioned by the permanent magnet, and with an applied low freduency y drive signal, causes the low frequency flexural member to oscillate to cause low frequency y scanning of the scanning mirror, thereby resulting in a raster scan pattern. With an applied high frequency y drive signal, the y coil causes the high frequency flexural member to oscillate at a high frequency to cause high frequency y scanning of the mirror, thereby resulting in an omnidirectional scan pattern. In several disclosed embodiments, the present invention provides a mirrorless beam scanning unit mounted in a finger size ring wherein a light emitter such as a visible light diode is moved back and forth.
Patent CA-2084683-C (CA)
Inventor: EDWARDS THOMAS C
IPC: F01C21/08
Filed: 1991-05-31
Granted: 2001-04-03
Abstract: Machine de déplacement de fluide du type à pales utilisant un rotor cylindrique (14), équipée d'une ou de plusieurs pales coulissantes fixées, dans laquelle le rotor (14) ainsi que l'ensemble de pales est placé rotativement de manière excentrique à l'intérieur d'un profilé de structure adaptée interne (12) entre des plaques terminales opposées, dont la combinaison définit des compartiments à volumes variables enfermés. Chaque pale (20, 22, 24, 26) est montée sur les côtés opposés à l'aide de fixations (20a, 22a, 24a, 26a), lesquelles sont montées pivotantes loin des bouts des pales. Les fixations viennent au contact de couronnes circulaires, par l'intermédiaire d'un moyen anti-frottement, situées à l'intérieur des plaques terminales qui sont concentriques avec le profilé de structure creuse. Deux moyens anti-frottement situés entre les fixations et les couronnes sont décrits, un se présente sous la forme de paliers à rouleaux en cage tournant librement (54, 56) interposés entre les fixations (20a, 22a, 24a, 26a) et les couronnes internes respectives (50, 52), et l'autre se présente sous la forme de fixations pourvues de paliers mis en rotation (112), lesquels viennent directement au contact de ces surfaces annulaires internes. L'invention concerne également des combinaisons de ces moyens de fixation de pales anti-frottement. Les fixations de pales viennent au contact à la fois des périphéries internes des couronnes des plaques terminales afin d'assurer une régulation du mouvement positif des pales radiales biaxiales, et le profilé de la structure (12) est défini de manière que les bouts des pales à mouvement positif régulé (20, 22, 24, 26) restent en relation d'étanchéité très proche mais sans frottement avec la structure creuse adaptée.
Patent CA-2084891-C (CA)
Title: Methods and formulations for use in inhibiting conception and in treating benign gynecological disorders
Inventor: SPICER DARCY V
IPC: A61K38/09
Filed: 1992-04-10
Granted: 1999-01-05
Abstract: Compositions and methods which are effective to inhibit conception and to treat benign gynecological disorders for extended periods of time are described, wherein an effective amount of a gonadotropin hor mone releasing hormone composition and an effective amount of an estrogenic composition are provided over a first p eriod of time, in addition to a progestogen and optionally an androgenic composition. According to one protocol, the progestogen is provided for a second, shorter period of time; the progestogen is provided at a higher level for at least 5 to about 20 d ays, and then at a lower level for the remainder, if any, of the second period of time. In an alternative, protocol, the progestogen is provided at a lower level substantially throughout the period of administration of gonadotropin hormone releasing hormone compositi on and estrogenic composition. An effective amount of the androgenic hormone is optionally provided over the first period of time.