baber/WOPTO huggingface dataset:
Patent CA-2011473-C (CA)
Title: Trapezoidal non-pneumatic tire with supporting and cushioning members
Inventor: PAJTAS SCOTT ROBERT
IPC: B60C7/00
Filed: 1990-03-05
Granted: 1998-01-06
Abstract: A trapezoidal non-pneumatic tire ("TNPT") is integrally molded from a stiff, resilient elastomeric material with particular specifications, to form a unitary structure comprising outer and inner cylindrical coaxial members ("hoops"), the outer being wider than the inner. The outer hoop is supported and cushioned by a plurality of circumferentially spaced apart, planar rib members (ribs) and a planar central web member (web) which connects the hoops at their circumferential center lines. The web lies in a plane perpendicular to the rotational axis of the TNPT. The ribs extend axially along the inner and outer hoops, connecting them, and the edges of the ribs lie along the opposite faces of the web. The ribs are angled in the range from 15° to 75° to radial planes which interesect them at their radially inner ends, and the ribs on one side of the web are angled oppositely from those on the other. A rubber tread is secured to the outer surface of the outer hoop. The coaction of the structural elements of the TNPT provides a load-supporting structure which, in operation, is subjected to continuous compression and tensile forces as it travels over the ground. Deformation and buckling characteristics of the TNPT are derived from its unique trapezoidal shape which results in an interaction of the structural elements such that the outer hoop is not pulled under the wheel as much as the outer hoop would have been, had the shape of the TNPT been rectangular. The trapezoidal shape provides the TNPT with improved "handling" characteristics in hard turns without sacrificing a "ride" which is surprisingly similar to that of a conventional pneumatic tire.
Patent CA-2020503-C (CA)
Title: Chemical cartridge for protective respiratory mask
Inventor: LESAGE JACQUES
IPC: A62B23/02
Filed: 1990-07-05
Granted: 1998-11-17
Abstract: A  chemical  cartridge  for  protective respiratory mask comprises  separate  active  filter section and universal filter section.   The active filter is formed of an absorbent medium impregnated with a reagent capable to capture and derive a target toxic pollutant having a chemically active function into an inert, non volatile and non toxic matter as air  is  inhaled.    The  active  filter  section  is permeable to other types of pollutants.  The universal filter section includes activated carbon or any other equivalent  filtering  material  and  is  positioned downstream the active filter section.  In operation, the target pollutant is captured and derived into inert, non volatile and non-toxic matter by the active filter section, while the other types of pollutants pass  through  this  active  filter  section  and  are captured by the universal filter section.
Patent CA-2035054-C (CA)
Title: Electronically controlled fluid release fifth wheel mechanism
Inventor: PARR TIMOTHY J
IPC: B60T11/10
Filed: 1991-01-28
Granted: 1993-10-12
Abstract: ELECTRONICALLY CONTROLLED FLUID RELEASE                    FIFTH WHEEL MECHANISM                 ABSTRACT OF THE DISCLOSURE         A controlled fluid release fifth wheel apparatus having a first control in the tractor cab and a second control outside the cab, in series with each other, and functionally located in series between a power source and a power actuator at the fifth wheel hitch.  Both the inside and outside controls must be properly actuated in series for the power actuator to operate to release the hitch.  A timer is actuated by the first control to set a short time period during which the second control can be actuated.  A trailer brake line air pressure sensor in series with the first and second controls prevents operation of the actuator until the trailer brake line is unpressurized such that the brakes on the trailer are locked.
Patent CA-2035929-C (CA)
Inventor: NELSON EDWARD J
IPC: A61M1/02
Filed: 1991-02-07
Granted: 1997-12-30
Abstract: Filtration of white blood cells (WBCs) directly from platelet rich plasma (PRP) rather than from subsequently made platelet concentrates (PC).  Earlier filtration is effective at removing most WBCs with minimal platelet loss and permits storage of platelets for at least 5 days.  The filtration is preferably done with a closed, ready-to-use system comprising a WBC filter disposed between a first blood bag and at least two empty secondary bags.  A fourth bag may be included in the closed system to contain a platelet additive solution.  System can remove at least 95% of the WBCs with less than 10% loss in platelets. In very preferred embodiments at least 99.5% of the original WBCs are removed by filtration prior to platelet storage.
Patent CA-2037775-C (CA)
Title: Thermally isolated probe
Inventor: DEFRANK MICHAEL P
IPC: G01K1/08
Filed: 1991-03-07
Granted: 1995-10-17
Abstract: The thermal isolation apparatus for the protruding probe of a biomedical thermometer includes an insulative air gap and a heat sink disposed between the surface of the probe and the optical path through the probe. The heat sink surrounds the optical path, such as a waveguide, and acts to evenly distribute any heat along the entire length of the waveguide to avoid temperature variations. Additionally, the heat sink has sufficient mass for high heat capacity and may slow the progress of any heat from reaching or leaving the waveguide until after the measurement by the biomedical instrument has been completed. Disposed over the heat sink is a boot which forms the closed air space between the heat sink and the outer probe surface. The air gap combined with the heat sink provide relative thermal isolation of the optical path through the probe and provide relative thermal isolation of the target anatomy from the temperature of the probe.
Patent CA-2041923-C (CA)
Title: Top vacuum corrugation feeder with aerodynamic drag separation
Inventor: SHEHATA AHMED-MOHSEN
IPC: B65H3/48
Filed: 1991-05-07
Granted: 1995-06-20
Abstract: A top vacuum corrugation feeder employs a vacuum feedhead working in conjunction with an air knife to feed sheets from the top of a stack. The air knife employs a thick boundary layer of air at a low pressure to suspend and separate the sheets by aerodynamic drag, resulting in about a 50% reduction in the required power for operation of conventional top vacuum corrugation feeders.
Patent CA-2045121-C (CA)
Inventor: HOPLAND MORITZ
IPC: B65G63/00
Filed: 1990-01-12
Granted: 1997-11-18
Abstract: Système de transfert de fret pour effectuer des transferts entre un navire (10) et un quai (II), et vice-versa, comprenant une plate-forme de rechargement (17) équipée d'un convoyeur (24) installée dans le sabord du navire, un convoyeur (40) installé sur le quai et un dispositif de transfert entre les deux convoyeurs. Le dispositif de transfert comporte : une plate-forme de transbordement (27) dotée de convoyeurs distincts (27a, 27b) servant à déplacer le fret horizontalement sur la plate-forme; un premier élément d'appui (25a, 25b) fixé au navire et un deuxième élément d'appui (34) reposant sur le quai (II) ; et deux éléments de guidage (32) disposés entre le premier et le deuxième élément de support. La plate-forme de transbordement (27)  est soutenue par des câbles de levage (26a, 26b), via des poulies de guidage (28a, 28b) situées sur la plate-forme de rechargement (17), qui servent à soulever et à rabaisser la plate-forme de transbordement (27) le long des éléments de guidage (32).
Patent CA-2045903-C (CA)
Title: Improved bone anchor and method of anchoring a suture to a bone
Inventor: CERIER JEFFREY C
IPC: A61B19/00
Filed: 1991-06-28
Granted: 2001-11-06
Abstract: A bone anchor (10) for securing a suture to a bone (38). The bone anchor (10) has a tip (16) at its distal end (18) and at least one resilient wall (27) extending to a trailing end (20) of the body (12) of the anchor. The wall (27) has a ridge (14), or barb, formed on an outer surface. The ridge (14) defines an edge (34) that digs into a hole (36) in the bone (38) in which it is positioned. A strand of suturing thread (22) extends through a suture receiving opening (24) in the tip (16) of the anchor. The method. of the present invention employs the suture anchor (10) and includes the steps of forming a hole (36) in a bone (38) and inserting the suture anchor (10) to a desired depth in the hole (36) in the bone (38) using an inserter device (100). Suturing thread (22) extends from the suture receiving opening (24) in the tip and along the length of the walls (27,28) out of the hole (36) in the bone (38). An anchor spreader (130) is used to firmly seat the anchor (10) in the hole (36).      The suture (22) is pulled at the same time to help seat the barbs 14 on the anchor (10) into the bone (38).
Patent CA-2051064-C (CA)
Title: Catalyst material and method for decomposition of chlorofluorocarbons
Inventor: HIROTA AKIHITO
IPC: B01D53/94
Filed: 1991-09-10
Granted: 1999-03-16
Abstract: The present invention provides a method for the decomposition of chlorofluorocarbons to hydrofluoric acid, hydrochloric acid and carbon dioxide by the chlorofluorocarbons' reaction with water at a temperature of 200°C or higher and in the presence of a catalyst material consists of a metal selected from the group consisting of Ti, Zr, Nb, and an alloy consisting of at least two elements selected from the same group. The catalyst material may also be composed of an alloy consisting of up to 80 atomic % of at least one element selected from the group consisting of Ni and Co and the substantial balance being at least one element selected from the group consisting of Ti, Zr and Nb.  The metallic catalyst materials of the present invention have a very high catalytic activity for the decomposition of flons at relatively low temperatures and can retain their high activity during the decomposition process, even if they are converted into fluorides.
Patent CA-2051344-C (CA)
Inventor: GASQUE SAMUEL N JR
IPC: H01B11/18
Filed: 1991-09-13
Granted: 1995-10-31
Abstract: A cable assembly has a cable of conductor assemblies within an insulating envelope, a conducting shield disposed around the cable, a grounding wire outside the shield extending along the length of the shield and in continuous contact with the shield, and an insulating and weatherproof jacket enclosing the shield and the grounding wire.  A method for using the cable assembly to connect a satellite television antenna to a receiver in a remote building, providing protection from ground induced lightning, is also disclosed.
Patent CA-2055324-C (CA)
Title: Laser with longitudinal mode selection
Inventor: HUBER DAVID R
IPC: H01S3/06
Filed: 1991-11-13
Granted: 1998-04-21
Abstract: A laser is fabricated from an optical transmission medium having a laser cavity with an rare earth (e.g. Erbium) doped portion.  At least one longitudinal mode is suppressed using a plurality of series coupled Fabry-Perot cavities, an optical grating, or a combination thereof.  Ring lasers and linear structures are disclosed.
Patent CA-2056611-C (CA)
Title: Belt tensioner, kit therefor and methods of making the same
Inventor: HENDERSON DEWEY D
IPC: F16H7/08
Filed: 1990-01-17
Granted: 1999-11-23
Abstract: A novel improved combination is provided herein of a support having a mounting surface, a single bolt, and a belt tensioner having a housing which is secured to the support in abutting relation to the mounting surface thereof by the single bolt that is carried by the housing and the support. The support has an opening interrupting the mounting surface in offset relation to the bolt. The housing has a certain removable pin extending therefrom which is received in the opening of the support to orient the tensioner relative to the support and to prevent rotation of the housing on the bolt. The improvement which is provided is of the housing having a plurality of mounting arrangements, each arrangement being for having a removable pin attached thereto for being received in an opening of a support. The certain removable pin is attached to one of the mounting arrangements.
Patent CA-2059594-C (CA)
Title: Pipe coupling
Inventor: BLOSE THOMAS L
IPC: F16L15/00
Filed: 1992-01-17
Granted: 1995-06-27
Abstract: A pipe coupling or connection comprises  a  female coupling component and a mating male coupling component.  Each component is matingly threaded for coupling engagement, and each is provided with an adjacent frusto-conical sealing surface.  The sealing surface is provided with a controlled surface roughness, viz. very shallow fine surface variations, preferably formed as microgrooves at a pitch small relative to the pitch of the threads.  The slope of the frusto-conical surface of the sealing area of the male component is slightly mismatched with that of the sealing area of the female component to simulate the bearing force vs. axial distance characteristic of shrunk-fit circular cylindrical sealing surfaces.  The slight mismatch enables the sealing pressure to be above a design minimum throughout the entire sealing area yet higher at each end of the sealing area.          As the coupling is assembled, thread interference in the vicinity of the sealing surface lags the occurrence of  interference between the sealing surfaces.  Load threads are provided with negatively inclined load flank faces.   The slope of the load thread pitch line of the male element is slightly steeper than the slope of the load thread pitch line of the female element.
Patent CA-2060541-C (CA)
Title: Spray gun with regulated pressure feed paint cup
Inventor: GRIME THOMAS E
IPC: B05B7/24
Filed: 1992-02-03
Granted: 1998-12-22
Abstract: An improved paint spray gun with a regulated pressure feed paint cup.  High pressure air is supplied through a hose and a fitting to the spray gun handle. The air pressure is reduced to a low pressure high volume flow within the gun for atomizing the paint.  The inlet of a pressure regulator is connected through a quick connect fitting directly to the gun handle for receiving high pressure air.  The regulator outlet is connected through a flexible hose to a barbed fitting on a check valve on a paint cup lid for applying a controlled paint feed pressure to the cup.  The location of the regulator does not adversely affect the maneuverability or balance of the gun during use and the regulator can be quickly disconnected from the gun to facilitate cleaning the gun.
Patent CA-2065093-C (CA)
Title: Remedies for bone diseases
Inventor: NIIKURA KAZUAKI
IPC: A61P3/02
Filed: 1992-04-03
Granted: 1995-10-03
Abstract: The use of drugs in which the active ingredient is droloxifene or a salt of droloxifene for the relief of bone diseases  such as  osteoporosis,  Pagets'  bone diseases,  bone dissolution,  malignant  hypercalcemia  and  chronic  articular rheumatism which are caused by deficiency of estrogen or the like is disclosed.  Droloxifene has fewer side effects than tamoxifen and clomiprene which are known to increase uterine weight.  Drugs according to the invention may be administered to animals or humans orally or parenterally.
Patent CA-2069955-C (CA)
Title: Method and system for remote delivery of retail banking services
Inventor: LAWLOR MATTHEW P
IPC: G06Q20/04
Filed: 1990-12-10
Granted: 1999-07-20
Abstract: A practical system (50) and method for the remote distribution of financial services (e.g., home banking and billpaying) involves distributing portable terminals (54) to a user base. The terminals (54) include a multi-line display (102), keys "pointing to" lines on the display (108), and additional keys. Contact is established between the terminals (54) and a central computer (52) operated by a service provider, preferably over a dialup telephone line (62) and a packet data network (56). Information exchange between the central computer (52) and the terminal (54) solicits information from the terminal user related to requested financial services (e.g., for billpaying, the user provides payee selection and amount and his bank account PIN number). The central compute r (52) then transmits a message over a conventional ATM network (66) debiting the user's bank account in real time, and may pay the specified payees the specified amount electronically or in other ways as appropriate. Payments and transfers may be sc heduled in advance or on a periodic basis. Because the central computer (52) interacts with the user's bank as a standard P OS or ATM network node, no significant software changes are required at the banks' computers. The terminal interface is extremel y user-friendly and incorporates some features of standard ATM user interfaces so as to reduce new user anxiety.
Patent CA-2069979-C (CA)
Title: Method of generating a reference function for a pulse compression of frequency; phase and/or amplitude-modulated signals
Inventor: MOREIRA ALBERTO
IPC: G01S13/28
Filed: 1992-05-29
Granted: 1996-10-01
Abstract: In a method of generating a reference function for pulse compression of frequency, phase and/or amplitude-modulated signals, a reference signal (ho(t)) corresponding to a conjugated complex function of an error-free frequency-modulated signal (so(t)) and a signal (sf(t)) containing phase and amplitude errors are generated in two following FFT units by a Fourier transformation in the form of signals (Ho, Sf) present at the outputs thereof. Thereupon, the signal (¦Ho¦2) is generated from the output signal (Ho) of the one FFT unit by means of an intensity-forming unit and the signal (1/Sf) is generated from the output signal (Sf) of the other FFT unit by means of a reciprocal-forming unit and said two signals (¦Ho¦2, 1/Ff) are multiplied together in a following multiplying member; finally, the output signal (Hi) of the multiplying member is subjected in an IFFT unit to an inverse transformation for generating the reference function (hi(t)) in the time domain.            For performing a pulse compression in the time domain a pulse response (fo(t)) corresponding to the function (sin(x)/x) is then formed from the signal (sf(t)) and the generated reference function (hi(t)) in a convolution unit (3).
Patent CA-2070421-C (CA)
Title: L-aspartic or l-glutamic acid-derived sweetener and process for its preparation
Inventor: NOFRE CLAUDE
IPC: A23L27/30
Filed: 1990-10-24
Granted: 2001-04-10
Abstract: This invention relates to a new edulcorant and its preparation process. This new edulcorant is a 2-substituted acyl derivative of L-aspartic or L-glutamic acid and follows the general formula (I); R being an acyl group with the formula (II) and R' a group with the formula (III); R1, R2, R3, X, Y, Z having varied significations. This new edulcorant is essentially caracterized by a high edulcorant capability and high stability compatible with industrial conditions of use and can be used in particular for sweetening fizzy drinks.
Patent CA-2072005-C (CA)
Inventor: YOUNTS PATTY L
IPC: E04F13/04
Filed: 1990-12-13
Granted: 2002-02-19
Abstract: A wall formed from square edge predecorated wallboards and the method of constructing a seamless wall from square edge predecorated wallboards (10) comprising folding the edge flaps of two abutting square edge wallboards (10) away from the joint, cutting a groove (G) along the length of the joint formed by the square edge abutting wallboards (10), adhering a joint strip (30) comprising a rib (34) which fits within the groove (G) and a support strip (32) therefore which extends laterally over the un-covered portion of each gypsum board adjacent to the joint, and double-cutting and adhering the edge flaps of the wallboards (10) to the joint strip (32) so as to form a seamless appearing joint.
Patent CA-2078169-C (CA)
Title: Silicon nitride sintered body
Inventor: YAMAMOTO TAKEHISA
IPC: C04B35/597
Filed: 1992-09-14
Granted: 1996-08-20
Abstract: A silicon nitride sintered body comprising .alpha.-silicon nitride including .alpha.'-sialon and .beta.'-sialon including .beta.-silicon nitride in which the content of the .alpha.-silicon nitride including .alpha.'-sialon in the surface part thereof is less than its content in the inner part thereof.  The silicon nitride sintered body is excellent in mechanical strength at ordinary temperature, productivity and cost efficiency.
Patent CA-2079801-C (CA)
Inventor: KAJIYAMA TISATO
IPC: C09K19/40
Filed: 1992-02-05
Granted: 1998-10-06
Abstract: The invention relates to a liquid crystal display device having a pair of electrodes, at least one of which is transparent, and a liquid crystal film sandwiched between the electrodes. The film is a mixture of a side chain type liquid crystalline polymer and at least two low molecular weight liquid crystals, the film containing 0.005 to 1 % by weight of an electrolyte based on the total weight of the film. This liquid crystal device has a high response speed and memory and can be used, for example, as the display in a variable traffic control sign, as a light-adjusting window, as a liquid crystal glare-proof mirror, or the like.
Patent CA-2089877-C (CA)
Title: Panelboard arrangement with improved control
Inventor: BILAS RONALD J
IPC: H02B1/04
Filed: 1992-06-29
Granted: 2002-07-23
Abstract: In a panelboard (10) for controlling current paths through a plurality of associated circuit breakers (20), a panelboard enclo-sure includes circuit breakers which each have a side facing a front side of the enclosure and including a multi-sectioned user interface circuit (32, 24) that is configured to communicate with at least one of the circuit breakers. The interface circuit includes a first circuit section (24) and a second circuit section (32). The first circuit section (24) is located adjacent the back wall of the enclo-sure and behind the second circuit section (32), and the second circuit section (32) includes communication means for allowing an operator at the front of the enclosure to communicate with the circuit breakers. This arrangement minimizes heat in the back of the enclosure, provides control and monitoring functions at the front of the enclosure and allows room for additional circuitry in the back of the enclosure. An automatic interpreter may be in-cluded in the enclosure for interpreting a coded message which provides the operator access to control the circuit breakers. Prefer-ably, the coded message is received on a coded key card.
Patent CA-2091673-C (CA)
Title: Method for maximizing channel selection in a communication system
Inventor: BREEDEN ROBERT LOUIS
IPC: H04B1/10
Filed: 1991-09-16
Granted: 1996-04-02
Abstract: A communication system (100) includes at least one base site (204) coupled to a telephone network (102) capable of communicat-ing to at least one of a plurality of communicators (108). The base site (204) generates interference signals on selected channels for steering (forcing) the communicator (108) to a communication channel substantially free of interference. The generated interfer-ence signals are selectively placed and selectively removed as the demand for communication channels varies.
Patent CA-2092721-C (CA)
Title: Process for the preparation of c-terminally amidated peptides
Inventor: BUCHARDT OLE
IPC: C07K7/06
Filed: 1991-09-13
Granted: 2002-08-13
Abstract: Preparation of C-terminally amidated peptides P-NH2 by reacting a substrate component selected from a) C-terminally unblocked peptides P-OH,b) peptides or peptide derivatives P-X-Y, where X is an amino acid or peptide residue and Y is OH, OMe or C-terminal modification, and c) C-terminally esterified peptides P-OR', where R' is alkyl, aryl, heteroaryl, ar-alkyl or an .alpha.-des amino fragment of an amino acid; with a nucleophile component in the present of an enzyme using as nuclo-phile a compound NH2-R capable of cleaving the reaction product P-NH-R to P-NH2, and undertaking such cleavage. Pre-ferred nucleophiles are selected from (I), wherein A-F and A'-E' are carbon atoms or up to two hetero atoms, Y is H, alkyl, aryl; aralkyl,oxo or carboxy, or a functional derivative thereof, X1-X5 are H  or various substituents. The cleavage may be induced by photolysis, solvolysis, reduction, rearrangement elimination or oxidation. The process is very flexible in that it may be adapted to any type of enzymatic synthesis and lend itself to C-terminal amidation of all types of peptides.