baber/WOPTO huggingface dataset:
Patent CA-2122913-C (CA)
Inventor: KEMP WILLARD E
IPC: F16K5/06
Filed: 1992-10-21
Granted: 2002-10-15
Abstract: A ball valve (10) has a stem (28) to rotate a ball member (20) with a lower key or lug (29) received within a slot or opening (26) forming a keyway in the ball member (20). As shown particularly in (Figures 2 and 3), relieved or cutaway surfaces (52, 54, 56) are provided between lug (29) and the outer spherical surface (24) of ball member (20) so that a torque exerted by rotation of the stem (28) contacts surfaces (34, 36) of the slot (26) along opposed corners (48) which are spaced a distance T1 from the outer spherical surface (24) of ball valve member (20) thereby removing or minimizing any stress concentrations adjacent outer spheri-cal surface (24).
Patent CA-2136458-C (CA)
Inventor: BROWN DAVID M
IPC: F16L55/165
Filed: 1994-11-23
Granted: 1997-03-25
Abstract: The coring rod realignment tool of the present invention is comprised of a body that has a fixed arm which protrudes beyond one of its sides, and a sliding arm that protrudes beyond an opposite side.  The slideable arm can be positioned so that its end that protrudes out from the body is in horizontal alignment with the protruding portion of the fixed arm, and it can be moved so that its end that protrudes out from the body is not in horizontal alignment with the end of the fixed arm that protrudes from the body, but is parallel to that end.  The portion of the fixed arm, and the portion of the slideable arm, that protrudes out from the body, is coupleable a coring rod of the type used in conjunction with a coring knife, in the installation of horizontal underground piping.
Patent CA-2139284-C (CA)
Inventor: ANTWILER G DELBERT
IPC: A61M1/36
Filed: 1994-12-29
Granted: 1998-08-11
Abstract: A plasma sequestration system having a volume control system is provided.   When a calculated volume of whole blood has been processed, the system switches from a fill to an empty cycle.  The termination point is calculated in advance, based on the desired composition of the collected plasma, thus improving process control and product uniformity.   The system is automated or partially automated using an optical sensor or marker to monitor the volume of packed red blood cells.  When the red cells reach the marker or sensor,  a  signal  is  sent  to  the  control  system which  then calculates the required fill volume.  Processing continues until the calculated fill volume is reached, at which time the system automatically stops the collection cycle.  The system also provides for two speed operation of the centrifuge as a safeguard against foaming which may result in aerosol formation and blood trauma. Foaming is reduced by reducing centrifuge speed as the packed red blood cells approach the stationary deflector in the centrifuge bowl.
Patent CA-2139373-C (CA)
Title: Ready-mixed, setting type joint compound
Inventor: ESPINOZA THERESE A
IPC: E04F13/02
Filed: 1994-12-30
Granted: 2002-06-25
Abstract: A cementitious composition of the setting type which can be kept in a ready-mixed state and which can be caused to set and harden upon introduction of an accelerator with reproducibility and set time predictability. The cementitious base composition contains calcium sulfate hemihydrate as a principal filler material sand certain non-calcium bearing phosphate additives which prevent setting action in the presence of water. An accelerator, such as zinc sulfate, may be added to the ready-mixed, cementitious composition to initiate the setting action, or the ready-mixed cementitious composition can be used as a drying type joint compound without the addition of an accelerator.
Patent CA-2139419-C (CA)
Title: Purified saccharose synthase, process for its production and its use
Inventor: ELLING LOTHAR
IPC: C12P19/30
Filed: 1993-06-26
Granted: 1998-11-24
Abstract: Nucleotide sugars, especially UDP, ADP, CDP or TDP glucoses can be enzymatically obtained by the reaction of nucleoside diphosphates with di or trisaccharides with a saccharose synthase in which the virtual absence of nucleoside phosphatases (0.1% or less) can be ensured by special purification methods and sensitive detection. The purification of the raw extract, obtained preferably from rice grains, comprises especially the application of the ultra-filtered extract containing 50 mM KCl with a pH 8 on a sepharose Q* column and a gradient elution out of the column at a pH 8 with 50 to 500 mM KCl.
Patent CA-2140978-C (CA)
Inventor: PEZZOLI PAUL
IPC: B65D65/40
Filed: 1995-01-24
Granted: 2004-11-23
Abstract: A recyclable multilayer ethylene polymer sheet structure for constructing a package to hold bulk products such as dry pet food having an odoriferous component, the sheet having, from the inner surface contacting the product, to the outer non-product contacting surface the structure:      LLDPE/HDPE/LLDPE/BR/LDPE where LLDPE is a linear low density polyethylene, HDPE is a high density polyethylene and BR is an odor barrier resin such as ethylene vinyl alcohol copolymer having odor barrier properties and LDPE is low density polyethylene.
Patent CA-2145103-C (CA)
Inventor: CONRAD HANS-ROLF
IPC: D21G1/00
Filed: 1995-03-21
Granted: 2000-08-29
Abstract: A method and apparatus for processing a web of material, which is dispensed from a roll and fed through at least one roller gap of a roller-gap system which includes a processing station, an unrolling station on the input side of the processing station, and a roll magazine on the input side of the unrolling station which magazine includes at least one roll storage position. When rolls of web material are processed, the processing delay times lead to an uneven distribution of the temperature and/or moisture within the roll which in turn causes nonuniformity of the results in the processing station. The web of material still on the roll is exposed, prior to being unrolled, to a preselected atmospheric environment for a predetermined minimum length of time. Accordingly, the roll storage position is located in a chamber, the atmosphere of which can be controlled to a preset temperature and/or humidity level.
Patent CA-2145170-C (CA)
Title: Contrepoids stabilisateur pour projectile a canon
Inventor: GILMAN STEWART
IPC: F42B10/04
Filed: 1993-11-26
Granted: 1998-04-28
Abstract: Dispositif cylindrique (20) pour montage sur la pointe d'un projectile et destiné à communiquer un mouvement rotatif à un projectile provenant d'une âme de canon sans rayures. Le dispositif comporte au moins deux segments coaxiaux de diamètres différents (32 et 34) intégralement reliés l'un à l'autre. Le segment (32) ayant le plus grand diamètre est positionné vers l'arrière de la pointe du projectile; ce segment comporte une série de fentes inclinées et régulièrement espacées (38) à sa périphérie, dont le rôle est d'utiliser la résistance de l'air pour communiquer un mouvement de rotation au projectile. Le segment ayant le plus petit diamètre (34) sert à fixer le dispositif sur la pointe du projectile (22) et dirige le flux d'air vers les fentes inclinées (38) à la périphérie du segment de grand diamètre (32).
Patent CA-2150961-C (CA)
Inventor: MASSEE JOHAN
IPC: B21D53/88
Filed: 1995-06-05
Granted: 2000-10-31
Abstract: In a method of forming a rim on a lamp reflector, a forming roller is positioned on one side of the reflector rim to be formed and a support roller is positioned on the other side. The reflector is rotated about its center axis and the rollers are rotated with the same circumferential speed as the reflector rim. Then the rollers are moved such relative to each other and to the reflector that the rim is flanged between the rollers. The forming roller is moved such that the final tangent line of the circumferential face of this roller to the reflector rim is tilted about a pivot point which is positioned substantially on the bending line of the reflector rim. The invention also includes an appara-tus for performing this method.
Patent CA-2151097-C (CA)
Inventor: KAWAKAMI KAZUTO
IPC: H03K17/16
Filed: 1995-06-06
Granted: 2000-05-16
Abstract: A gate drive circuit for a voltage-driven type power switching device, including a control device for generating a gate voltage for the voltage-driven type power switching device, and a correction device connected to the control device for receiving the gate voltage and for correcting an effect of a magnetic flux resulted from a main circuit current flowing in the voltage-driven type power switching device applied to the gate voltage to generate a corrected gate voltage.  The corrected gate voltage is applied to a gate of the voltage-driven type power switching device.
Patent CA-2158332-C (CA)
Inventor: GRAY DAVID A
IPC: B27L11/00
Filed: 1995-09-14
Granted: 1998-11-24
Abstract: An improved chute and spout assembly for use with a wood chipper that clears logjams by the use of hydraulic rams attached to the chute near the chipper. The rams move between an extended position, for moving the logs, and a retractedposition, when the logs are sliding by gravity on the interior surface of the chute. The rams are oriented and spaced apart in order to move the logs when jammed without interfering with each other when more than one ram is extended into the interior of the chute to move the logs. When retracted, the ends of the rams areapproximately flush with the interior surface of the chute. Each ram is independently controlled for flexibility in clearing logjams.
Patent CA-2160482-C (CA)
Inventor: LONNBERG BENTH
IPC: E04B7/16
Filed: 1994-04-12
Granted: 2004-08-24
Abstract: The invention relates to an arrangement for operable hoofs, especially for glazed verandas and balconies.   The arrangement comprises a substantially horizontal supporting section (10) which defines an elongate guiding channel (11) having an elongate side opening (12), and a substantially horizontal roofing panel (20) which is movable in the longitudinal direction of the supporting section (10) and whose one lateral edge (21) extends through the side opening (12) into the guiding channel (11) of the supporting section (10). A plurality of separate guiding and spacing members (40) are mounted spaced from each other in the direction of the guiding channel (11) on the lateral edge (21) received in the guiding channel (11) and abut against the inner wall of the guiding channel (11), thereby ensuring that there is a play in the side opening (12) both upwards and downwards between the panel (20) and the supporting section (10). The guiding and spacing members (40) ate designed so as to allow a turning movement of the panel (20). Compressible sealing means (50) are arranged in the guiding channel (11) between the side opening (12) and the guiding and spacing members (40).
Patent CA-2165287-C (CA)
Title: Disposable absorbent article with selectively expandable or inflatable components
Inventor: LAVON GARY DEAN
IPC: A61F13/49
Filed: 1994-05-26
Granted: 1999-09-14
Abstract: A disposable absorbent article having an expandable component is disclosed. The expandable compo-nent can be inflatable, and comprises a gas evolving material and an acti-vating material separated from the gas evolving material by a breakable bar-rier. The barrier is broken to combine the materials and inflate the compo nent at the point of use of the dispos-able absorbent article. The inflatable component can comprise a spacer for maintaining a fecal void space in a disposable absorbent article.
Patent CA-2169698-C (CA)
Inventor: HAMA TAIRA
IPC: F16L33/20
Filed: 1996-02-16
Granted: 2001-03-13
Abstract: A novel clamping band is provided herein. It includes a metallic band section having a first end, which is formed in a Y-shaped fork having a pair of fork pieces. A pair of concave sections is formed in each side edge margin of the band. The concave sections are capable, respectively of accommodating the fork pieces of the Y-shaped fork when the band is formed into a loop with the first end being overlapped by the band, and where the concave sections face inwardly. A clamping ear having a gate shape is disposed at a position on the band which overlaps the first end when the band is formed into a loop. The clamping ear is compressible in the circumferential direction of the loop to permit reducing a diameter of the loop. An engaging piece is provided in the vicinity of the Y-shaped fork of the band section. A first engage hole is capable of engaging with the engaging piece, the first engage hole being provided in the vicinity of the other end of the band section.  In this manner, the band section can be formed into the loop when the first engage hole is engaged with the engaging piece.
Patent CA-2171644-C (CA)
Title: Moteur a combustion interne
Inventor: MCLACHLAN PAUL ANTHONY
IPC: F01C9/00
Filed: 1994-09-16
Granted: 2003-11-25
Abstract: Moteur à combustion interne dans lequel le piston (10) oscille autour d'un point pivot (60), le piston (10) étant relié à proximité de l'extrémité distante du point pivot (60) à une bielle (12) afin d'entraîner un vilebrequin. Le piston (10) présente une première surface d'étanchéité (41) ainsi qu'une seconde surface d'étanchéité (42) décalée radialement de ladite première surface d'étanchéité (41), lesdites première et seconde surfaces d'étanchéité (41, 42) étant reliées par un plancher (44). La première surface d'étanchéité arquée (41) assure une étanchéité contre une paroi (51) de même courbure de la chambre de combustion (20), et la seconde surface (42) d'étanchéité arquée, laquelle constitue une paroi de la chambre de combustion (20), assure une étanchéité contre une paroi (52) d'une chambre de suralimentation (53). Le moteur peut être du type à auto-allumage ou à allumage par bougie, à deux temps ou à quatre temps.
Patent CA-2174271-C (CA)
Title: Microphone selection process for use in a multiple microphone voice actuated switching system
Inventor: BOWEN DONALD JOHN
IPC: H04M9/10
Filed: 1996-04-16
Granted: 1999-08-03
Abstract: A microphone selection process is made relatively constant in terms of processing requirements through use of combination values which provide a measure of the quality of the speech signal received in each one of a plurality of microphones. Such combination values are derived in a manner which provides an indication of which one of the plurality of microphones, that provide area coverage for a conference room, for example, best receives the speech signal. In operation, themicrophone selection process selects the microphone which best receives the speech signal by comparing a signal energy value received in each one of the microphones to that received in each of the other microphones. More specifically, pairs of microphones are examined, to determine the direction of origin for the speech, by seeking a microphone pair where the speech is strong in the microphone directed toward the source of speech, and weak in an associated microphone directed away from the source of speech. Since a null, which is located at the back of each microphone, is narrower than a main beam or sensitivity pattern, which is located at the front of each microphone, this null is more sensitive to and therefore a better indicator of the direction of origin for the speech than is the main beam. The combination of the signal energy values for each pair of microphones advantageously provides a specific combination value which is used to identify and select the microphone which best receives the speech signal.
Patent CA-2187548-C (CA)
Title: Chemical solution filling system
Inventor: DECKER JAMES D
IPC: B67D7/74
Filed: 1996-10-09
Granted: 2002-12-10
Abstract: The present invention is a method for dispensing and handling chemical solutions by using a dispensing station.  The dispensing station includes a cabinet having a fill compartment and at least one concentrate bottle compartment.   The cabinet's top wall has a funnel for supporting  a  dilution  gun.    The  gun  is  in  fluid communication with a water source and has a removable insert containing an aspirator.  The insert's outlet tube fits within the cabinet's funnel.  A pickup tube extends from the concentrated chemical solution to the gun.  A use container such as a spray bottle is sized and configured to fit within the fill compartment.   In the preferred embodiment, the concentrate container has a plurality of grooves which are sized and configured to correspond with a plurality of ribs within the concentrate compartments. Additionally, the concentrate compartment's lower portion forms a track to accommodate a bottom portion of the concentrate container.
Patent CA-2189182-C (CA)
Title: Asynchronous transfer mode exchange system and priority control method
Inventor: FAN RUIXUE
IPC: H04L47/525
Filed: 1996-10-30
Granted: 2002-01-08
Abstract: A call reception control circuit 1 sets each guaranteed band width required for assuring communication quality of the respective band width demand classes in the corresponding N counter Nc, Ntv and Nv at a certain time interval Ts. The call reception control circuit 1 also sets values defined by the ratio of the W counter Wabr and Wubr of the respective best effort class to use the remained band width. The value 1 is subtracted from each value of the N counter Nc, Ntv and Nv and W counter Wabr and Wubr at every output of the cell from the corresponding class. A priority control process circuit 2 outputs cells to an output channel 3 according to priority levels giving a priority to the band width demand class having the value of the N counter not set to 0 over the band width demand class and the best effort classes having the value of the N counter set to 0.
Patent CA-2195017-C (CA)
Title: Multiport trocar
Inventor: HART CHARLES C
IPC: A61B17/34
Filed: 1995-05-19
Granted: 2000-06-13
Abstract: A trocar (10) adapted to extend across the body wall (15) into a body cavity, forming a seal around an instrument inserted through the trocar, comprises a cannula (12) having a firt axis extending between proximal and distal ends. A  valve housing (23) attached to the proximal end of the cannula (12) forms a working channel with the cannula (12) and includes a rigid housing portion (25) and a flexible housing portion (27). First and second septum valves (61, 67) are formed in an end wall of the flexible housing portion (27) and form separate valve sets (56, 54) with associated zero closure valves (63, 70) disposed within the valve housing (23). The valve sets (56, 54) are sized and configured accommodating different ranges of instrument diameters. The first and second septum valves (61, 67) are offset from the axis of the cannula (12) in normal positions but are movable to positions more aligned with the axis of the cannula (12) due to elastomeric characteristics of the valve housing (23).
Patent CA-2199391-C (CA)
Inventor: OLIVIERI ICARO
IPC: A63C1/30
Filed: 1995-06-13
Granted: 2007-10-16
Abstract: A rigid reinforcement member (15) extends longitudinally along the neck portion (9) of the skate blade holder (4), to reduce stress and im-prove force transfer. The blade holder has a longitudinal slot (11) running along the bottom thereof to receive a blade or runner (10), which is secured in the slot. At least one rigid rein-forcement member runs along at least the neck portion, within the slot and above the runner, the slot being en-larged at the location of the reinforce-ment member(s) in order to accommo-date the member(s). Preferably, the reinforcement member is in one piece, including an upper web portion (16) and an integral channel (17) with a cross section in the form of inverted U-shape beneath the upper web por-tion. The arms of U-shape run along-side the runner, one on either side of the runner, and the base of the U--shape lies against the top of the runner and follows the shape thereof. Prefer-ably, the rigid reinforcement member is of a reinforced plastic composite material, although a metal could also be used. The increased rigidity of the blade holder permits the use of a lighter runner, which may be provided by using a runner with a number of cut-out areas (26). The cutouts are arranged in a central area between a solid upper area of the runner and asolid lower area of the runner, in such a fashion that the remaining metal in the central area leaves a truss-like structure between the upper and lower areas, the truss-like structure servin g to retain most of the rigidity of the runner.
Patent CA-2200742-C (CA)
Inventor: STOBIE ALAN
IPC: C07D/
Filed: 1995-09-08
Granted: 2001-09-11
Abstract: Composés de la formule (I), ainsi que leurs dérivés acceptables sur le plan pharmacologique, dans laquelle A représente N ou CH; R<1> et R<2> représentent indépendamment alkyle C1-4, halo ou CF3; R<3> représente alkyle C1-4 (éventuellement substitué), cycloalkyle C3-7, CF3 ou aryle; et R<4> représente H, cycloalkyle C3-7 ou alkyle C1-6 (éventuellement substitué). Ces composés sont utiles dans le traitement, entre autres, des affections dégénératives neuronales.
Patent CA-2203931-C (CA)
Inventor: REUTHER WOLFGANG
IPC: C08B31/00
Filed: 1995-10-17
Granted: 2006-02-21
Abstract: Starch is cationically modified by reacting starch with polymers which contain amino and/or ammonium groups in an aqueous medium at from 115 to 180°C under superatmospheric pressure in the absence of oxidizing agents, polymerization initiators and alkali, by a process in which the reaction is carried out in a manner such that a reduction in molecular weight occurs in not more than 10% by weight of the starch, and the reaction products thus obtainable are used as dry strength agents for paper.
Patent CA-2204911-C (CA)
Title: Glial derived neurotrophic factor as a neuroprotective agent
Inventor: MARTIN DAVID
IPC: A61K38/00
Filed: 1995-11-13
Granted: 2002-07-23
Abstract: The present invention is directed to the use of glial-derived neurotrophic factor (GDNF) to inhibit or prevent seizure activity. The methods of the present invention are accomplished by administering GDNF to patients having or potentially having a neurodegenerative disorder such as epilepsy. Pharmaceutical compositions containing a therapeutically effective amount of  GDNF in a pharmaceutically acceptable carrier are also provided.
Patent CA-2206598-C (CA)
Inventor: PETERSON WAYNE CHARLES
IPC: B42D15/04
Filed: 1997-05-30
Granted: 2006-08-01
Abstract: A business form intermediate with pressure activated cohesive in separable side margins is otherwise conventional except for the particular patterns of cohesive. The patterns prevent cupping (i.e. flexing or distortion) of the vertical edges. Substantially straight line series of substantially rectangular spots having dimensions about 1/4 inch by 1/8 inch, and spaced from each other about 1/2 inch, are preferably provided, along the vertical (side) edges of the intermediate on at least one face, and preferably both faces (not staggered horizontally, but not significantly vertically overlapping, from one face to the other).
Patent CA-2209858-C (CA)
Title: Il-2r-associated polypeptide and dna molecules coding therefor
Inventor: TANIGUCHI TADATSUGU
IPC: C12P21/08
Filed: 1995-12-23
Granted: 2008-02-19
Abstract: The present invention relates to a polypeptide, p43, which is associated with the interleukin-2 receptor (IL-2R). It binds specifically to the .beta. and .gamma. subunits of IL-2R and is further capable of binding NAD+. The invention is further related to nucleic acid molecules coding for p43 and to antibodies specifically binding p43.