baber/WOPTO huggingface dataset:
Patent CA-2072577-C (CA)
Inventor: RUDE EDWARD T
IPC: E05D11/10
Filed: 1991-11-04
Granted: 1996-12-03
Abstract: There is disclosed a hinge assembly that has a pintle (9) and two plates that can rotate about the axis of the pintle. The first plate (17) is irrotatably affixed to the pintle. The second plate is part of a friction element which also includes a band having a plurality of turns helically disposed about the pintle. Between the other end (15) of the band and the second plate there is a spring (13) that tightens the band about the pintle. The band is flexible enough so that it does not grip the pintle without the force of the spring. Frictional force is developed between the band and the pintle that opposes movement of the second plate in a direction that tends to tighten the band about the pintle. Movement of the second plate in the opposite direction tends to loosen the band's grip on the pintle so that very little frictional force is developed.
Patent CA-2080594-C (CA)
Title: Auxillary communication service routing
Inventor: HAYES JOHN
IPC: H04M3/533
Filed: 1992-03-23
Granted: 2001-09-11
Abstract: A system and method for routing a call through the PSTN to an auxiliary communications services mailbox (40), such as voice mail, of a mobile subscriber (30). The call is received in the nearest exchange (80) and routed to the exchange where the mobile subscriber is located (50). If the mobile subscriber, for example, does not answer, a voice mail number is used to route the call to the exchange (90) where the voice mailbox (40) is located.
Patent CA-2083054-C (CA)
Title: Foam for improving sweep efficiency in subterranean oil-bearing formations
Inventor: SYDANSK ROBERT D
IPC: E21B33/13
Filed: 1991-04-26
Granted: 1995-01-31
Abstract: A foam is provided having utility for improving sweep efficiency in subterranean oil-bearing formations and having specif-ic utility for conformance improvement treatments and mobility control in such formations. The foam is a gel medium having a gas dispersed therein. The gel medium is made up of a crosslinkable polymer, a crosslinking agent, a surfactant and a liquid sol-vant.
Patent CA-2086279-C (CA)
Title: A differential detection demodulator
Inventor: KOJIMA TOSHIHARU
IPC: H03D13/00
Filed: 1992-12-24
Granted: 1999-08-10
Abstract: Within a differential detection demodulator, a received signal is first quantized by a limiter amplifier and then subjected to frequency conversion by a frequency converter including: an exclusive OR element; a running average generator consisting of a shift register and an adder; and a comparator. In response to the output of the frequency converter, the phase comparator outputs a relative phase signal representing the phase shift of the received signal after frequency conversion relative to the phase reference signal. The phase comparator includes: an exclusive OR element; an absolute phase shift measurement means consisting of an adder and D flip-flop arrays and; and a D flip-flop serving as a phase shift polarity decision means.      Alternatively, the phase detection circuit for generating the relative phase signal may include: a half-period detection means consisting of a delay element and an exclusive OR element; a phase reference signal generation means consisting of a modulo 2N counter; and a phase shift measurement means consisting of a phase inversion corrector and a D flip-flop array. The delay element delays the relative phase signal by one symbol period and the subtractor outputs the phase difference signal representing the phase transition over each symbol period of the received signal. The decision circuit obtains the demodulated data from the phase difference signal.
Patent CA-2088288-C (CA)
Title: Drill string jarring and bumping tool
Inventor: ANDERSON CLIFFORD JOHN
IPC: E21B31/113
Filed: 1993-03-19
Granted: 2003-10-21
Abstract: A jarring and bumping tool is provided, having a mandrel telescopically received within a barrel for relative longitudinal movement. Upper and lower seals form an oil-containing annular space therebetween. The mandrel carries a free-floating annular primary piston which sealably engages a reduced-diameter piston fitting section of the barrel when passing therethrough. The mandrel also carries a secondary cylinder assembly with a transverse top wall and a downwardly extending annular secondary cylinder beneath the primary piston, forming a piston chamber between the mandrel and secondary cylinder assembly. The mandrel also carries a spring which biases a free-floating annular secondary piston upwards into the piston chamber. A port through the top wall of the cylindrical member provides fluid communication between the annular space and the piston chamber. Thus, when the mandrel is pulled upwards the primary piston seals against the piston fitting section, oil in the annular space is compressed and forced through the port and into the piston chamber against the secondary piston to compress the spring, and the drill string is stretched. When the primary piston clears the piston fitting section, fluid moves rapidly around the primary piston, the mandrel extends, and impact faces connect to deliver a jarring stroke upwards.
Patent CA-2104076-C (CA)
Inventor: HEIMSOTH DANIEL DEAN
IPC: H04L29/06
Filed: 1993-08-13
Granted: 1999-05-18
Abstract: A session-oriented local area network (LAN) application and an ISO 8802-2 protocol driver code will cooperate in a new form  of  connectionless,   session-oriented  communication called Sideband.  At each  session start-up time,  the LAN Application will communicate with the enhanced ISO 8802-2 based protocol  driver  on  the  local  system  and  the  LAN Application and the 8802-2 based protocol driver on the remote system to determine if they all support the Sideband. If Sideband is fully supported by both systems,  Sideband will be  activated for the  session.  To  communicate  on a session  which  has  Sideband  active,  the  LAN  Application requests that data is to be sent using the Sideband.   A check  is  performed  to  see  if  the  data  meets  Sideband criteria.  As  Sideband  is  a  connectionless  medium,  the additional code path needed to set Up and track timers and to handle the resend attempts are saved in the protocol. If the LAN Application code is session-oriented, it will keep track of a timer which will cause the data to be resent along a non-Sideband path if a  response is not received within a designated amount of time. Header information is stored and reused to increase the throughput and decrease the  response  time  for the  transmission of  small network packets.  In  case  the  network  at  some  points  becomes unreliable, procedures are used to track the reliability of the network and to enable and disable Sideband in accordance with the reliability of the network.
Patent CA-2111873-C (CA)
Inventor: PHAN DEAN VAN
IPC: D21F11/00
Filed: 1992-06-22
Granted: 1997-05-27
Abstract: Disclosed is a cellulosic fibrous structure, such as paper. The fibrous structure has at least three intensively distinct regions. The regions are distinguished from one another by intensive properties such as basis weight, density and projected average pore size, or thickness. In one embodiment, the fibrous structure has regions of two basis weights, a high basis weight region and a low basis weight region. The high basis weight region is further subdivided into low and high density regions so that a fibrous struc-ture having three regions is produced. Also disclosed is an apparatus and process for making the fibrous structure, having three four, and more regions. The process is similar to known papermaking techniques, but comprises the additional steps of applying a differential pressure to selected regions of the fibrous structure which are not coincident with the regions of the fibrous structure defined by the apparatus in prior steps of the papermaking process. The selective application of noncoincident differential pres-sure to selected regions of the fibrous structure may result in densification or dedensification of such regions.
Patent CA-2117637-C (CA)
Title: Dispersant, setting retarder and air entrainment additive for cement
Inventor: GRAUER ZVI
IPC: C04B24/32
Filed: 1993-03-26
Granted: 2002-01-29
Abstract: The invention is a cement, water containing composition containing an organic polyglycoside. The composition has at least one of an increased air entraining capacity, a reduced viscosity and a retarded setting time.
Patent CA-2119295-C (CA)
Inventor: HUANG SHUN-FENG
IPC: H01K1/46
Filed: 1994-03-17
Granted: 1999-07-20
Abstract: A Christmas lamp with a base has a cylindrical portion formed with a plurality of lengthwise ribs and a plurality of lengthwise slots defined by the ribs. The slots are useful for dispersing heat produced by the lamp quickly. And, inner contact surfaces of the ribs are in close contact with an outer surface of the lamp to keep the lamp secured in the base.
Patent CA-2120209-C (CA)
Inventor: WATANABE MASAO
IPC: B60T8/175
Filed: 1994-03-29
Granted: 1999-01-12
Abstract: An apparatus for preventing excessive slipping of a wheel of a motor vehicle,  including a brake force regulator for regulating a brake force for braking the wheel based on at least an amount of change of a rotating speed of the wheel, a device for obtaining the rotating speed of the wheel, a device for obtaining a running speed of the vehicle; and a device for obtaining, as a kind of the amount of change of the rotating speed of the wheel,  a relative wheel speed change amount which corresponds to an amount of change of a difference between the speeds of the wheel and the vehicle.
Patent CA-2120401-C (CA)
Title: Method and apparatus for ejecting unwanted ions in an ion trap mass spectrometer
Inventor: LOURIS JOHN NATHAN
IPC: H01J49/42
Filed: 1994-03-31
Granted: 1999-02-23
Abstract: A method and apparatus is described which determines a plurality of spaced discrete frequencies covering the range of frequencies of the characteristic motion of unwanted ions and processes said discrete frequencies to generate a plurality of time dependent voltage amplitude values which vary throughout the time domain such that the frequency content of said plurality of time dependent voltage amplitude values is relatively uniform over the entire time domain, and such that the magnitude associated with the discrete frequencies is relatively uniform over the frequency domain.
Patent CA-2131012-C (CA)
Inventor: TALBOTT RICHARD L
IPC: C09J153/02
Filed: 1993-02-24
Granted: 2003-12-16
Abstract: An adhesive which contains a tackifying resin and a branched three-armed block copolymer composition comprised of po-lymeric blocks wherein the molecular weight is from about 180,000 to about 250,000, the polystyrene content is from about 17 to about 23 % by weight of the block copolymer composition and the percentage of S-I arms which are load bearing is greater than about 58 %.
Patent CA-2135218-C (CA)
Title: Method of distributing objects
Inventor: HAKANSSON JAN
IPC: B65B61/18
Filed: 1994-11-07
Granted: 2005-05-17
Abstract: The invention relates to a method of distributing parts for opening devices and preparing for application in that the parts, which are intended to be applied individually on a packaging container, are positioned, closed and marshalled together to form a web or a sheet. The prefabricated parts are arranged in rows.  In each row, two or more of the parts are provided with projections which are placed against corresponding part in a neighbouring row and are welded together using ultrasonic means.
Patent CA-2135273-C (CA)
Title: Air conditioning and refrigeration systems utilizing a cryogen
Inventor: VIEGAS HERMAN HERMOGIO
IPC: F24F3/06
Filed: 1994-11-07
Granted: 2002-09-17
Abstract: Air conditioning and refrigeration methods and apparatus for controlling the temperature of a conditioned space to a predetermined temperature band adjacent to a predetermined set point temperature via cooling and heating cycles utilizing a supply of pressurized cryogen. A fluid flow path for the cryogen includes a heat exchanger associ-ated with the conditioned space. A cryogen heater is connected in the active cryogen flow path during a heating cycle, and cryogen is directed through the heater and heat exchanger via at least two successive serial passes, utilizing the elevated pressure energy of the cryogen as the motive force.
Patent CA-2137075-C (CA)
Title: Loudspeaker
Inventor: WALTON ROGER NEAL
IPC: H04R9/06
Filed: 1993-07-16
Granted: 1998-04-28
Abstract: A loudspeaker has a pole (6) and a surrounding magnet (3) which together define an annular gap (7). A voice coil (12) supported on a tubular former (8) is disposed within the gap (7) as is a conduct ive skirted dome (13). The dome (13) is supported upon an insulating gasket (14) providing three arcuate points of support and a p hase plug (16) extends through a central opening (15) in the dome (13). The dome (13) and phase plug (16) are preferably,separate d by a second gasket (27) which may or may not be bonded to both and the phase plug (16) suitably includes an integral born (20 ) extending beyond the former (8).
Patent CA-2142755-C (CA)
Title: Solid oxide fuel cell stack
Inventor: GARDNER FREDERICK JAMES
IPC: H01M8/12
Filed: 1995-02-17
Granted: 2007-04-10
Abstract: A solid oxide fuel cell stack (10) includes a core region (12) which comprises a plurality of first modules (24) and a plurality of second modules (26) stacked alternately. Each first module (24) comprises a first distribution member (28) formed from two corrugated ceramic plates (32,34) which define internal passages (30) for the supply of a first reactant to the fuel cells (22). The first distribution member (28) is enclosed by a porous support structure (36) which carries the fuel cells (22) on its two parallel surfaces. A plurality of passages (38) are defined between the porous support structure (36) and the first distribution member (28) which distribute and remove the first reactant from the anodes (40). Each second module (26) comprises a second distribution member (54) formed from two corrugated ceramic plates (58,60) which define internal passages (56) for the supply of a second reactant to the fuel cells (22). A plurality of passages (62) are defined between the fuel cells (22) and the second distribution member (54) which distribute and remove the second reactant from the cathodes (44).
Patent CA-2162588-C (CA)
Inventor: COMPANION JOHN A
IPC: A61F2/94
Filed: 1994-04-13
Granted: 2000-09-05
Abstract: Procédé et système (45) combinés de cartographie de l'urètre d'un patient mâle permettant de détecter des problèmes prostatiques (10) et urinaires et d'évaluer les problèmes trouvés, permettant également de détecter et de caractériser les tumeurs. Un élément (35) rapporté (33) de renforcement destiné à la prostate est fabriqué de façon personnalisée à partir des données cartographiées pour soulager toute obstruction de l'adénome prostatique, et une sonde (110) de positionnement et de récupération destinée à l'élément rapporté de renforcement est également prévue et décrite.
Patent CA-2164676-C (CA)
Title: Method and apparatus for delivering a glass stream for forming charges of glass
Inventor: DEMBICKI MICHAEL T
IPC: C03B7/16
Filed: 1995-12-07
Granted: 2006-10-10
Abstract: A method and apparatus for delivering a glass stream comprising a first inner layer and a second outer layer, comprising a generally vertical orifice, and delivering glass from a second source such that the glass from said second source provides an outer layer about the glass from the first source as it flows through said orifice. A resistance heated tube assembly is made of platinum or material having similar resistance heating properties and extends from a glass source to an orifice through which the glass flows from a glass source for the inner layer.      The tube assembly includes a tube portion having an inlet end that communicates with the source for the outer layer and an outlet end that communicates with the source. The tube portion has an axis positioned at any angle ranging between the horizontal and vertical but preferably has an axis which is more vertical than horizontal. Flanges are secured to the ends of said tube portion, and the flanges are connected to an electric power supply. The cross sectional thickness of said flanges is preferably greater than the thickness of the tube portion. Each flange includes an annular groove adjacent its respective end of the tube portion into which the end of said tube portion extends. The flanges are welded to the tube portion. Flange heater modules surround each end of the tube portion.
Patent CA-2170940-C (CA)
Inventor: KAWASAKI YASUJI
IPC: B66F3/08
Filed: 1996-03-04
Granted: 1999-08-17
Abstract: A screw jack comprising a bed, a case body having a groove formed therein and mounted on an upper surface of the bed, and a thrust bearing mounted on a central area of the upper surface of the bed. A large bevel gear is placed on the bed through the thrust bearing such that a main threaded shaft of the large bevel gear is secured at a lower end thereof to the thrust bearing and erected upwardly therefrom. A small bevel gear carried on the case body through a bearing meshes with the large bevel gear. An outer sleeve is guided along the groove of the case body. A heavy object raising inner sleeve is disposed within the outer sleeve and is guided by the outer sleeve. The main threaded shaft is rotated through the large bevel gear by the small bevel gear which is rotated by an external driver so that a heavy object is raised. The case body is integrally formed of aluminum casting or hard resin.
Patent CA-2171336-C (CA)
Inventor: HOLMES STEPHEN DUDLEY
IPC: C12N15/13
Filed: 1994-09-07
Granted: 2011-06-21
Abstract: Chimeric and humanized IL4 MAbs derived from high affinity MAbs, pharmaceutical compositions containing same, and methods of treatment are provided.
Patent CA-2171898-C (CA)
Title: Linker optimization for compiled object oriented programs
Inventor: THOMSON BRIAN WARD
IPC: G06F9/42
Filed: 1996-03-15
Granted: 2000-02-01
Abstract: When compiling and linking programs using an object oriented language and virtual functions addressed by virtual function tables, the compiled and linked program may often include functions that are not used. The compiler is unable todetermine whether a particular virtual function selected by it can actually be called and the linker must link the function into the program to satisfy the reference from the virtual function table. The present invention solves this problem. The compiler tags each defined virtual function with a code identifying it as a member of a group of related virtual functions. The compiler also tags each virtual function call to identify which group or groups of related virtual functions are candidates for invocation by the virtual function call. The linker combines the two codes to identify which defined virtual functions are not candidates for invocation by any virtualfunction call. The linker then omits those non-candidate virtual functions from the link if all references to them were from virtual function tables.
Patent CA-2181104-C (CA)
Inventor: LUHM RALPH
IPC: F16B19/06
Filed: 1996-07-12
Granted: 2001-02-20
Abstract: A rivet which has a flat crown that extends from the head of a rivet. The rivet is typically installed into a workpiece hole which has a countersink. The head has a frusto-conical section that extends from a rivet shank and a cylindrical section that extends from the frusto-conical section. The frusto-conical section sits within a countersink of the workpiece hole. Extending from a top surface of the head is a crown which has a flat end face and a tapered portion that extends from the end face to the top head surface. The crown has a diameter that is smaller than the outer diameter of the head. The flat end face is approximately 0.5 times the diameter of the shank. The crown has a diameter that is approximately 1.25 times the shank diameter. The rivet is deformed by a hammer and an anvil so that the crown becomes flat and the rivet fills the hole of the workpiece. The crown maintains essentially the same diameter during the rivet deformation process so that the deformation forces are transmitted primarily through the shank of the rivet. The rivet head completely fills the workpiece hole without requiring any post-installation shaving process.
Patent CA-2184250-C (CA)
Title: Materiau stratifie capillaire
Inventor: LANGDON FREDERICK MICHAEL
IPC: A61F13/511
Filed: 1995-02-27
Granted: 2000-11-07
Abstract: La présente invention se rapporte à un matériau stratifié. Ce matériau comprend une première feuille et une deuxième feuille séparées par des éléments d'écartement afin de définir une zone capillaire permettant le déplacement capillaire de fluide entre les deux feuilles. Lesdits éléments d'écartement relient les deux feuilles l'une à l'autre afin de constituer le matériau stratifié.
Patent CA-2187142-C (CA)
Title: Method and apparatus for treatment of neurogenic diabetes mellitus, and other conditions
Inventor: JANNETTA PETER J
IPC: A61F2/06
Filed: 1996-10-04
Granted: 2002-07-09
Abstract: A method and implants provide for relieving pressure from a region of the brainstem within the cranium of a subject with a neuroendocrine servomechanism. The pressure results from the compression of the region by a blood vessel. The method includes gaining access to the region using a first surgical technique; exposing the region according to a second surgical technique; lifting the blood vessel from the region according to a third surgical technique, thereby providing the pressure relief; and inserting a neurovascular bridge implant between the blood vessel and the region to maintain the pressure relief. The neuroendocrine servomechanism is responsive to the pressure relief on the region, causing amelioration of a disease. One neuroendocrine servomechanism can include the pancreas of the subject, and the pressure relief ameliorates non-insulin-dependent diabetes mellitus. The neurovascular bridge implant can be a preconfigured shredded plastic implant, made of polytetrafluoroethylene, or a preconfigured thermoplastic implant, made of a polyurethane-based material having a glass-transition temperature of between 20°C to 60°C and a transition band of about 8°C.
Patent CA-2188511-C (CA)
Title: Opening and closing mechanism for electronic device
Inventor: INOUE TSUTOMU
IPC: H04W88/02
Filed: 1996-10-22
Granted: 2000-09-12
Abstract: A portable phone incorporating an opening and closing mechanism comprises a main body, a sub-body, a hinge unit, and distribution cables.  The main body and the sub-body respectively include electric circuits.  The hinge unit includes a shaft disposed at one end of the sub-body, a cam having a center axis coupled to the shaft and used for regulating opening and closing angles of the sub-body, and a pair of leaf springs for maintaining turning angles of the cam.  The distribution cables are connected to the electric circuits, and have their center portions wound around the shaft of the hinge unit.  The distribution cables are stretched or compressed when the sub-body is opened or closed.
Patent CA-2189757-C (CA)
Inventor: UBAN STEPHEN A
IPC: C02F1/20
Filed: 1995-05-12
Granted: 2007-08-14
Abstract: Appareil de traitement de l'eau comprenant un récipient de contact (60) s'étendant verticalement, dans lequel l'eau est mise en contact avec l'ozone (53), et un récipient de retour (61) qui contient une colonne (24) d'eau présentant une hauteur suffisante pour que l'eau circule à travers des étages de filtrage en aval (12). L'ozone est extrait de l'eau et le débit d'injection d'ozone est contrôlé et automatiquement régulé de sorte qu'il n'en reste pas de grandes quantités dans l'eau pénétrant dans les étages de filtration (12). L'ozone est produit dans des éléments allongés (58) qui sont refroidis par l'eau du processus et qui sont positionnés de manière à servir de mélangeur statique pour cette eau.