baber/WOPTO huggingface dataset:
Patent CA-2183350-C (CA)
Title: Porous polytetrafluoroethylene compositions
Inventor: BRANCA PHILLIP A
IPC: C08L27/12
Filed: 1994-10-14
Granted: 1999-04-27
Abstract: In the present invention a blend of resin composition and blending technique is optimized to provide a desired balance of node size and fibril length with the additional property of thermal stability in the resulting stretched material. The stretched blend can be described as a polytetrafluoroethylene porous material having a microstructure of nodes in-terconnected by fibrils in which the mate-rial comprises a blend of two different poly-tetrafluoroethylene, one polytetrafluoroethy-lene being a homopolymer of tetrafluoroethy-lene and the other polytetrafluoroethylene be-ing a modified polymer of tetrafluoroethylene.
Patent CA-2185755-C (CA)
Title: A support for a garbage chute cleaning apparatus
Inventor: BATE DOUGLAS EDWARD
IPC: B08B3/00
Filed: 1996-09-17
Granted: 2002-01-22
Abstract: A support for a garbage chute cleaning apparatus includes a cart having ground engaging wheels.   Outrigger legs are provided for anchoring and providing lateral stability to the cart.  A rotatably mounted reel is provided having a length of line mounted on the cart.   Two telescopically extendible vertical  support  columns  are  mounted  on  the  cart.    A telescopically extendible horizontal cross-beam extends between the two vertical support columns.  The horizontal cross-beam has a remote end with a line guide which receives line from the rotatably mounted reel. A Counterweight is mounted to the cart opposite the remote end of the horizontal cross-beam.  This provides a counterbalance to a garbage chute cleaning apparatus supported from the line at the remote end of the horizontal cross-beam.
Patent CA-2191885-C (CA)
Title: Method of blow molding hollow articles from thermoplastic synthetic resin
Inventor: DECKWERTH HORST
IPC: B29C48/92
Filed: 1996-12-02
Granted: 2005-02-08
Abstract: A process for blow-molding hollow bodies from thermoplastic synthetic resin wherein, in addition to control to accurately position an extruder thermoplastic melt preform in the blow mold and to maintain a constant weight of the extruded preform, on the program curve which itself is a superimposition of the profile curve of the preform and a base gap determined in accordance with the nozzle gap width through which the preform is extruded, there is superimposed a correction strip which can be varied depending upon material distribution changes as a result, for example, of sag of the preform.
Patent CA-2192641-C (CA)
Inventor: MORI HIROSHI
IPC: E05F15/697
Filed: 1996-12-11
Granted: 2002-10-01
Abstract: To solve the problem that a plastic speed reduction case is softened due to the frictional heat produced by an end spacer.    An end spacer 17 is set to a thrust receiving portion 10b of a speed reduction case 10 so that it cannot be rotated to produce a frictional braking force between the end spacer 17 and the front end face of a motor shaft 4.
Patent CA-2199367-C (CA)
Title: Absorbent article having inflected barrier cuffs
Inventor: BENJAMIN JOYCE MARIE
IPC: A61F13/15
Filed: 1995-09-08
Granted: 2002-04-16
Abstract: Absorbent articles having side panels that provide inflected barrier cuffs which promote better containment and fit. The absorbent articles comprise a liquid pervious topsheet, a liquid impervious backsheet, an absorbent core positioned between the topsheet and the backsheet; a side panel extending laterally from each longitudinal edge of the absorbent article and having a proximal edge, a distal edge and a fold intermediate the distal edge and the proximal edge; spacing means for spacing the distal edge away from the liquid-receiving surface (topsheet) of the absorbent article; and a closing means for securing the distal edges inboard of the proximal edges in the front waist region. The fold of the side panel is secured inboard of the proximal edges in the front waist region and is disposed outboard of the proximal edge in the rear waist region when fitted to the wearer. Thus, the side panels are inflected such that the portion of the side panels in the rear waist region provide a gasketing action about the buttocks of the wearer to contain exudates and a snug fit, while the stand-up portions of the side panels in the crotch region and the closed portion of the side panels in the front waist region provide channels to contain, restrain and hold body exudates.
Patent CA-2201572-C (CA)
Title: Method of sterilization using pretreatment with hydrogen peroxide
Inventor: ADDY TRALANCE O
IPC: A61L101/22
Filed: 1997-04-02
Granted: 2005-11-08
Abstract: A method for hydrogen peroxide vapor sterilization of medical devices and similar instruments having long narrow lumens or diffusion restricted areas includes the step of pretreating the article to be sterilized with a dilute solution of hydrogen peroxide prior to exposure to a vacuum or a vacuum followed by plasma. The method is such that, upon vaporization of the solution caused by the vacuum, the hydrogen peroxide remains in contact with the article for a time sufficient to achieve sterilization.
Patent CA-2206588-C (CA)
Title: Electrochemical fuel cell system with a regulated vacuum ejector for recirculation of the fluid fuel stream
Inventor: MERRITT ROBERT D
IPC: H01M8/04089
Filed: 1995-12-22
Granted: 2000-06-20
Abstract: An electric power generation system has a regulated vacuum ejector for recirculating the fluid fuel stream. The system includes a fuel cell stack (100), a pressurized fuel supply (120) having a pressure control valve (122) for regulating the pressure of the fuel supply, a vacuum ejector (124) interposed between the fuel supply (120) and the stack fuel stream inlet (110), a pressure transducer (132) interposed between the ejector discharge outlet (130) and the stack fuel stream inlet (110), and a pressurized oxidant supply (150) with a pressure transducer (156). The ejector suction inlet (128) is fluidly connected to the fuel stream outlet (112) of the fuel cell stack.  The fuel stream pressure transducer transmits a signal to the pressure control valve to adjust the pressure of the fuel supply when the detected pressure of the fuel stream deviates from a predetermined value. The oxidant stream pressure transducer transmits a signal to the pressure control valve to adjust the pressure of the fuel supply when the detected pressure of the oxidant stream changes. The system is load-following to maintain uniform fuel stream pressure and recirculation ratio over a broad range of operating conditions.  The system also maintains a balance between the pressure of the fuel stream and the pressure of the oxidant stream.
Patent CA-2213018-C (CA)
Title: Contact arrangement having an auxiliary contact
Inventor: PAULICK THOMAS EUGENE
IPC: H02J7/00
Filed: 1997-08-14
Granted: 2001-05-01
Abstract: A novel contact arrangement enables selective charging of battery packs or the transfer of information between a battery pack and an electronic device. According to one novel feature of the invention, a charging contact (408) is positioned in a region (410) outside of the area covered by the contacts of conventional cells. Therefore, a charging contact terminal of an electronic device will only apply charging current to rechargeable cells to avoid unintentional charging of any primary cells. According to alternate embodiments, battery contacts can be placed at different locations to selectively charge batteries depending upon the battery type. According to other embodiments, information or data transfer contacts (406) can be located at different locations to enable the transfer of information.
Patent CA-2213934-C (CA)
Title: Mirror securing device
Inventor: WHITEFORD JOHN R
IPC: H04N5/74
Filed: 1997-08-20
Granted: 2005-06-28
Abstract: A device for securing a mirror in a projection television is disclosed. The device includes a cabinet having an aperture defined by edges. A shoulder element is located adjacent each of the edges, wherein each shoulder element extends underneath the aperture and is positioned for supporting peripheral edges of a reflection surface of the mirror. The device further includes a mirror cover plate located adjacent a back surface of the mirror and affixed to the cabinet. In addition, the device includes a securing element affixed between the back surface and the mirror cover plate for reducing deformation of said mirror.
Patent CA-2217620-C (CA)
Title: Wavelength bypassed ring networks
Inventor: MACDONALD R IAN M
IPC: H04B10/275
Filed: 1997-10-08
Granted: 2001-05-08
Abstract: The invention is directed to the use of wavelength channels to bypass nodes in ring networks. For networks with a small number of nodes, direct node to node routes are provided without changing the physical layout of the fibre in the ring. Architectures providing complete transparent interconnections with extra capacity for heavily used routes on a portion of the ring are disclosed. For networks with a large number of nodes, underconnected networks provide a number of accelerated, direct routes between some of the nodes. Proposed architectures for underconnected networks and methods for self-routing the traffic are also provided.
Patent CA-2218751-C (CA)
Inventor: BACKLUND YLVA
IPC: G02B6/42
Filed: 1996-04-23
Granted: 2008-06-17
Abstract: Un substrat de silicium (1), comportant une rainure (2) destinée à réceptionner un élément, se caractérise en ce qu'au moins un élément de retenue (3) intégré s'étend, au moins partiellement, au-dessus de l'évidement (2) afin de retenir un élément réceptionné dans cet évidement (2).
Patent CA-2220622-C (CA)
Inventor: ROY AUBIN P J
IPC: H03L7/085
Filed: 1997-11-03
Granted: 2004-03-30
Abstract: A method of testing phase locked loops (PLL) and a testing circuit comprising the steps of applying a normal stimulus signal whose frequency is within the lock range of the PLL to the input of the PLL, substituting the normal input stimulus with an alternative signal derived from an internal feedback of the PLL, adding or deleting one or more cycles from the alternative signal and observing the response of the PLL to the alternative signal. Variations of the method allow for determining Gain-Bandwidth product, lock range, lock time, Bit Error Rate, Jitter and other parameters which can then be compared with predetermined values to determine whether the PLL is properly functional.
Patent CA-2229339-C (CA)
Title: Bearing housing seal
Inventor: LAMPART KARL D
IPC: F16C33/76
Filed: 1996-09-24
Granted: 2002-01-15
Abstract: A pillow block assembly comprising a hollow housing having axially spaced en d walls (28, 32), an opening (24, 26) in at least one end wall for a rotatable  shaft member (36), a bearing (40) in the housing to rotatably support the shaft member in the housing and seal means (Sl and So) in the wall of the housing defining the opening including a labyrinth seal member (Sl) mounted on the shaft, and a first resilient sealing member (84) disposed between the labyrinth seal member and the housing, and a second resilient sealing member  (90) between the labyrinth seal member and the shaft.
Patent CA-2239034-C (CA)
Inventor: STASIK ERIC
IPC: H04B7/08
Filed: 1996-12-05
Granted: 2004-06-08
Abstract: A mobile-link system (10) for a radio communication system includes a first mobile-link assembly (16), a second mobile-link assembly (18), and a satellite feeder-link assembly (20) located on satellite (12); a nd an earth feeder-link assembly (22) located in earth station (14). The first and second mobile-link assemblies (16 and 18) operate in combinati on to transmit downlink signals to mobiles in both the central zone (24a) and the edge zone (24b) of the coverage area (24). The first mobi le- link assembly (16) receives uplink signals from both the central zone (24a) and the edge zone (24b) whilst the second mobile-link assembly (18) only receives uplink signals from mobiles in the edge zone (24b) of the coverage area (24). In this manner the first mobile- link assembly (16) and the second mobile-link assembly (18) provide diversity reception of edge uplink signals transmitted from mobile stations located in the edge zone (24b).
Patent CA-2241121-C (CA)
Inventor: DOSHI HARESH A
IPC: G01N31/22
Filed: 1998-06-19
Granted: 2002-06-18
Abstract: Markers which are soluble in petroleum fuel and are extractable from petroleum fuel by either acidic aqueous solutions or basic solutions and develop a color in the presence of the extracting acidic or basic aqueous solution, are identified by passing a specimen putatively containing the marker through an acidic resin column or a basic resin column, as the case may be.
Patent CA-2245272-C (CA)
Inventor: GOULDSON STANLEY F
IPC: G09F3/20
Filed: 1998-08-07
Granted: 2006-07-18
Abstract: A molded plastic garment hanger having an improved indicator detachment opening is disclosed, wherein the hanger has a hook with a web adjacent said hook and a hanger body, wherein the web is received within a cavity of a molded plastic indicator having side walls. The web and the indicator combining to provide a security means to prevent unauthorized removal of the indicator. The web is formed with a detachment opening formed in the web which extends through the security means and under said indicator to allow the indicator to be removed with a detachment wedge inserted in said opening. A method and apparatus for removing the indicator from the web is also provided by inserting a reciprocal wedge mounted on a first plate into the opening defined in the web to displace the indicator and thereby release the indicator from the web without damaging either the indicator or the hanger. The present invention contemplates automated as well as manual removal of the indicator from the hanger and provides a method and device therefor.
Patent CA-2245391-C (CA)
Inventor: CAHILL JOYCE ROBERTA
IPC: F23D3/02
Filed: 1998-08-24
Granted: 2004-07-13
Abstract: A fuel cell for use in chafing dishes includes a container with a combustible medium in the container. The combustible medium is primarily propylene glycol. The advantage of such a fuel cell is that it is non-toxic.
Patent CA-2247112-C (CA)
Inventor: MOWRY WILLIAM H JR
IPC: B42D15/10
Filed: 1997-02-12
Granted: 2001-10-30
Abstract: A security document is provided comprising a substrate having a top surface for carrying indicia. The top surface has a plurality of areas. Each of the areas contains background printed matter on the top surface. The background printed matter made up of a pattern of background elements. Each of the areas also contains a security term printed on the top surface of the substrate. The security term is composed of a pattern of security term elements. The background elements and/or the security term elements differ in element size, shape, angle, density, and/or frequency between adjacent areas. Also, within each of the areas either the background elements or the security term elements are not readily duplicated by a color copier while the remaining elements in the area are readily duplicated by a color copier. This results in a visually perceptible security term being produced upon copying of the security document.
Patent CA-2250844-C (CA)
Title: Anti-hiv composition comprising imidazole derivatives
Inventor: FUJIWARA TAMIO
IPC: A61K31/47
Filed: 1997-03-14
Granted: 2002-09-10
Abstract: An anti-HIV composition comprising 2-carbamoyloxymethyl-5-(3,5-dichlorophenylthio)-4-isopropyl-1-(pyridin-4-yl)methyl-1H-imidazole or the pharmaceutical acceptable salt thereof and other one or more anti-HIV compounds is provided.
Patent CA-2255756-C (CA)
Inventor: WILLIAMS PETER S
IPC: C08F4/645
Filed: 1997-05-16
Granted: 2007-02-20
Abstract: This invention relates to a polyolefin copolymer composition produced with a catalyst having a metallocene complex in a single reactor in a process for the polymerization of an .alpha.-olefin monomer with one or more olefin comonomers, and a molecular weight maximum which occurs in that 50 percent by weight of the composition which has the highest weight percent comonomer content. Preferably, the composition has a comonomer partitioning factor C pf which is equal to or greater than 1.10 or molecular weight partitioning factor M pf which is equal to or greater than 1.15. Preferred composition also have at least 0.01 long chain branches per 1000 carbon atoms along the polymer backbone. These compositions with reverse molecular engineering have superior properties and are easily processable due to the simultaneous presence of the association of high molecular weight with high comonomer content and of long chain branching.
Patent CA-2262195-C (CA)
Inventor: CHRONISTER CLYDE H
IPC: F16K27/07
Filed: 1999-02-17
Granted: 2002-07-23
Abstract: A valve assembly for a tank having an opening. The valve assembly includes a body assembly mounted to the tank opening. The body assembly has a valve seat arid a valve throughbore. A valve disk coacts with the valve seat for opening and closing the valve throughbore. A locking lug is attached to the valve disk. The locking lug has a locking portion for receiving a safety lock pin mounted in the body assembly. The safety lock pin has a locked position and an unlocked position. The safety lock pin is received in the locking portion of the locking lug to lock the valve disk in the locked position, and the safety lock pin is withdrawn from the locking portion in the unlocked position. A valve operator is in releasable contact with the valve disk. The valve operator forces the valve disk away from the valve seat to open the valve throughbore. The body assembly includes a first member and a second member and the lock pin is mounted in the first member. A shear plane is formed between the first and second members such that the second member may be sheared from the first member at the shear plane without affecting the integrity of the lock pin in the locked position.
Patent CA-2262735-C (CA)
Inventor: LEE KWOK-FU
IPC: B01J3/02
Filed: 1997-08-20
Granted: 2007-10-30
Abstract: Method and apparatus are described for continuous vapor phase polymerizatio n of a polymerizable monomer or mixture thereof to produce solid polymer substances in two or more serially disposed vapor phase polymerization reactors, each containing a quench-cooled subfluidized particulate bed of polymerized monomer. More specifically, method and apparatus as described for transfer of polymer particles between high pressure, reactive gas-filled , continuous, vapor-phase polymerization reactors while maintaining each at independently selected operating conditions, wherein the method and apparatu s employs two polymer particle transfer chains disposed in parallel between an upstream and a downstream reactor and operated in alternating sequence.</SDO AB>
Patent CA-2264873-C (CA)
Title: Process for the preparation of a food product
Inventor: BIGGS DONALD REGINALD
IPC: A23G9/34
Filed: 1997-08-13
Granted: 2005-05-10
Abstract: A process for shaping a wafer comprising the steps of: (a) softening the wafer by using infrared radiation; (b) shaping the softened wafer into the desired form; and (c) cooling the wafer.
Patent CA-2265783-C (CA)
Title: Radiant heating element for a cooking area
Inventor: LEIPRECHT WINFRIED
IPC: H01H37/04
Filed: 1997-09-16
Granted: 2004-11-09
Abstract: In a radiant heating body for a cooking location, in particular in the case of a glass ceramic plate (4), an insulating bottom (2) with an insulating annular rim portion (3) is provided in a pot member (1). A heating element (6) is arranged in an air space (5) above the insulating bottom (2). A safety temperature limiter is provided on the pot member (1). In order to achieve a low degree of switching hysteresis and to avoid an expansion bar regulator, the safety temperature limiter is in the form of a bimetal switch component (8) having a housing (9) which is fixed to the pot member (1) and in which a bimetal element (11) is disposed at the side towards the air space (5). Provided at the annular rim portion (3) is an opening (20, 24) through which the bimetal element (11) is thermally coupled directly or indirectly to the air space (5).
Patent CA-2268956-C (CA)
Title: A method and apparatus for imaging and sampling diseased tissue using autofluorescence
Inventor: DOMANIK RICHARD A
IPC: A61B5/00
Filed: 1998-10-14
Granted: 2004-09-21
Abstract: An apparatus for imaging body tissue utilizing autofluorescence includes an endoscope (30) having a distal end (32), proximal end (31) and a light processing unit (33) located at the proximal end (31). The tight processing unit accepts light in a spectral region from a light source (40) and directs the light through the endoscope to the tissue (5) located at the distal end (32). The light excites autofluorescence in the tissue. Optics (35) located in the distal end (32) of the endoscope collect the excited autofluorescence in a spatially resolved manner and routes it to the light processing unit (33) which separates the emitted light from any reflected excitation light. A plurality of imaging detectors (45) receive the emitted light. Each imaging detector is responsive to light in a different spectral band. An apparatus for sampling tissue includes an endoscopic device (30) comprising a sampling device (220) capable of taking a plurality of tissue samples, deposited in separate captive units (226).
Patent CA-2276206-C (CA)
Inventor: ITURRALDE CAROL E
IPC: H04L12/46
Filed: 1997-12-30
Granted: 2002-12-24
Abstract: A data transmission network having a port-based default VLAN that limits flooding to other VLANs. The default VLAN receives a data packet, ascertains the destination address of the packet, and then determines if the destination port is one of the default VLAN ports. The data packet is transmitted to the destination port if it is one of the default VLAN ports, or to each of the default VLAN ports if the destination port is not one of the default VLAN  ports. The data packet is not transmitted to any other non-default VLAN port.
Patent CA-2277475-C (CA)
Title: Capacitor with dual electric layer
Inventor: KAZAROV VLADIMIR ALEXANDROVICH
IPC: H01G11/72
Filed: 1997-11-11
Granted: 2004-01-20
Abstract: A dual electric layer capacitor having one of its electrodes made of a carbon material and the other electrode from a material containing lead dioxide.      The capacitor under consideration features improved specific characteristics and lower cost.
Patent CA-2287701-C (CA)
Title: Vertical crop cutting apparatus
Inventor: BADRY MERLIN
IPC: A01D63/02
Filed: 1999-10-28
Granted: 2001-02-13
Abstract: A cutter is provided for attachment to each end of a horizontally extending agricultural cutting bar. Each cutter includes a rotor having blades mounted about a periphery thereof for rotation about a horizontal rotor axis extending between the cutters. The rotor is driven by a hydraulic motor such that the blades engage the crop at high speed. The cutting apparatus cuts in a vertical direction for use in cutting entangled crops such as canola and peas and preventing the crop from being entangled on the ends of the cutting bar.
Patent CA-2288905-C (CA)
Inventor: MIZUNO TOSHIYA
IPC: D01F6/12
Filed: 1998-04-23
Granted: 2004-12-14
Abstract: A monofilament prepared from a vinylidene fluoride resin and having the following relationship between the modulus (Y15) at a tensile elongation of 15 % and the initial modulus (Y0): 0.85 <=(Y15/YO) <=1.3 and a Y15 value ranging from 200 to 350 kg/mm2; and a fishing line prepared from the monofilament and having such a feature that undesirable curling scarcely occurs and, even when it does occur, it can be readily relieved.