baber/WOPTO huggingface dataset:
Patent CA-2150733-A1 (CA)
Title: A rotatable pressure seal
Inventor: COLEBROOK MARK ANTHONY
IPC: E21B17/10
Filed: 1995-06-01
Abstract: A rotatable pressure seal between a relatively rotatable shaft and body structure comprises two annular sealing discs concentric with the shaft, one disc being mounted on the body structure and the other disc being carried on the shaft, the discs having engaging sealing faces formed of polycrystalline diamond or other superhard material. The pressure seal is particularly for use in a modulated bias unit, for controlling the direction of drilling of a rotary drill bit when drilling boreholes in subsurface formations. The bias unit comprises a number of hydraulic actuators spaced apart around the periphery of the unit, and a selector control valve modulates the fluid pressure supplied to each actuator in synchronism with rotation of the drill bit so that, as the drill bit rotates, a thrust member of each actuator is displaced outwardly at the same selected rotational position so as to bias the drill bit laterally and thus control the direction of drilling. The selector control valve is located within a cavity in the body structure and is operated by a shaft which extends into the cavity through a pressure seal according to the invention.
Patent CA-2151927-A1 (CA)
Title: Cathepsin d is an amyloidogenic protease in alzheimer's disease
Inventor: TAMBURINI PAUL PERRY
IPC: C07D211/60
Filed: 1993-11-12
Abstract: Disclosed are methods for regulating formation of beta-amyloid protein with inhibitors of proteases specific for the Precursor to the Alzheimer's Disease beta-amyloid protein, such as inhibitors of aspartic protease, cathepsin D, and a chymotryptic-like serine protease; a method for detecting in vitro protease activity for molecules which possess specificity necessary for the degradation  of the Amyloid Precursor Protein; assays for identifying inhibitors of proteases specific for the Amyloid Precursor Protein; and identified inhibitors and their use as therapeutics for the treatment of Alzheimer's Disease.
Patent CA-2152116-A1 (CA)
Title: Frontal-view baby carrier
Inventor: SAMRAJ TENNYSON
IPC: A45F3/08
Filed: 1995-08-29
Abstract: While the seat is a common phenomena, a frontal shoulder-suspended seat for carrying babies is unique. It is common knowledge that a baby enjoys the company of a parent. Frontal-View Baby Carrier enables a baby to have the presence of a parent while at the same time ensures that the parent is not hampered with having to carry the baby in his/her arms. This baby carrier allows a parent, while carrying the baby, freedom to engage in other activities ~ because one's hands are free. Frontal-View Baby Carrier enables a parent to spend many happy hours with baby, whether walking in the park or carrying on with chores at home.
Patent CA-2152656-A1 (CA)
Inventor: DUMMERMUTH PAUL
IPC: A01B33/08
Filed: 1995-06-26
Abstract: A manually displaceable implement for ground treatment comprising a dead-man safety based on an automatic lowering and blocking of the running wheels (53.  A stop (10) is provided on the implement for blockage, against which at least one lowered running wheel (5) rests.  The automatic lowering of the running wheels (5) is accomplished by a two-part height adjustment rod (4), which is maintained together by an emergency release element (12).  In an emergency, this emergency release element (12) is activated by a ripcord, whereby the connection is automatically released.
Patent CA-2153298-A1 (CA)
Title: Device box support
Inventor: BOURASSA ALAIN
IPC: H02G3/12
Filed: 1995-07-05
Abstract: A support for mounting an electrical device box into an opening made in a panel. This support has an elongated bar-shaped member longer than the device box and two L-shaped members coplanar to and projecting from one side of the bar-shaped member. The distance between each one of the opposite ends of the bar-shaped member and the remote point of this bar-shaped member from which the remote L-shaped member projects is substantially equal to the height of the electrical box. In use, one can easily insert the bar-shaped member behind the panel through the opening made in the panel by first introducing one of the opposite ends of the bar-shaped member into the opening and moving this one end until the adjacent L-shaped member contacts the panel. Then, the support can be rotated so that the other opposite end of the bar-shaped member passes through the opening, such being possible because of the above mentioned distance selection. Fixation of the device box within the opening is subsequently achieved by folding back into the box the two L-shaped members.
Patent CA-2154272-A1 (CA)
Inventor: HANSEN IVER
IPC: B60C27/00
Filed: 1994-01-21
Abstract: Adjustable studded tire system for operation while driving or parking. The system includes a hydraulic pump unit which by elastic tubes molded into the outer layer of the vehicle tire can move studs into and out of the vehicle tire without having any part of the stud system penetrate the tire casing.
Patent CA-2154977-A1 (CA)
Title: Benzimidazolesulfonamide derivatives and pharmaceutical composition
Inventor: YANAKA MIKIRO
IPC: A61K31/54
Filed: 1995-07-28
Abstract: A  benzimidazolesulfonamide derivative of the formula (I):                   (I) wherein R1 is an alkyl group of 1 to 6 carbon atoms or a haloalkyl group of 1 to 6 carbon atoms; R2 is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, a haloalkyl group of 1 to 6 carbon atoms, -OR4, -O(CH2)mC6H5, -(CH2)nC6H5, -NH2, -NHR5, -NHC(=O)R5, -N(R7)2, -NHC(=O) (CH2)pC6H5, or -NHC (=O)CH(C6H5) 2; R3 is an azole group, -COOH, -COOR8 , or -SO3H; A is -O-, -NH-, or -S(O)q-;        R4, R5, R6, R7, and R8 are independently an alkyl group of 1 to 6 carbon atoms; m, n, and p are independently 0 or an integer of 1 to 6; and q is 0, 1, or 2, or a salt thereof; and a pharmaceutical composition comprising the above compound are disclosed.  The compound exhibits a stable and strong antagonism to angiotensin II.
Patent CA-2156207-A1 (CA)
Title: Reverse gear squeal-preventing device
Inventor: FUJII ISAO
IPC: F16H63/30
Filed: 1995-08-16
Abstract: An object of the present invention is to provide a reverse gear squeal-preventing device capable of preventing a reverse gear squeal without increasing an operating force, which device can be realized with fewer components and at lower cost, and further which can be adapted for use in differently structured transmissions. In addition, the device ensures that a forward stage-shifting yoke, which has slightly been moved during reverse gear squeal-preventing operation, can be returned to a neutral position.  Further, the device can reduce an impinging noise of a plate-holding bolt at the selecting time, and provides downsizing of the interlocking plate. To this end, the device according to the present invention comprises:  a cam member attached to a shifting and selecting shaft so as to be axially movable and circumferential immovable for driving the forward stage-shifting yoke into slight movement in a forward stage-shifting direction at the beginning of the reverse-shifting time; a guide member attached to the cam member so as to be axially movable; a cam spring biased against both of the cam member and a support, the support being fixedly mounted on the shaft; a forward stage-selecting spring biased against both of the cam member and the support via the guide member; and, a restriction portion for limiting movement of the guide member in a forward stage-selecting direction at the time of forward stage selecting.
Patent CA-2157138-A1 (CA)
Title: Air abrasive blast line travel machine
Inventor: TAYLOR SIDNEY A
IPC: B24C3/06
Filed: 1995-08-29
Abstract: A pipeline treating apparatus (10) is disclosed which is used to clean the exterior of a pipeline (12) with high pressure air with entrained abrasive.  The apparatus has an improved classifier and separator to separate the abrasive grit from lighter debris which includes a classifier and separator within a manifold duct (56) which returns the grit to a collection pan (40) for recovery and causes the lighter airborne dust to be removed through a return duct (58).  A series of pressure relief filters (82) reduce the air pressure within a blast chamber (28) and resist debris escaping from the blast chamber past the triple seals (76, 78, 80).  The blast nozzle assemblies (834) are attached to the nozzle oscillating frames by snap fittings (74) which avoids threaded connections which may become contaminated by the debris.
Patent CA-2161422-A1 (CA)
Title: Impedance feedback electrosurgical system
Inventor: NARDELLA PAUL C
IPC: A61B18/14
Filed: 1994-04-29
Abstract: An impedance feedback electrosurgical system (100) is useful with electrosurgical tools (104) to maintain a substantially constant level of current wihtin the tissue in contact with the tool. The system comprises active and return elechndes (108, 112) associated with an electrosurgical tool (104), an impedance monitoring device (116) and a power control unit (118). Energy sufficient to affect tissue is delivered through the active electrode (108) to tissue and to the return electrode (112). The impedance measuring device (116) is in circuit with the return electrodes (112) and measures the impedance of tissue. A  signal representative of tissue impedance is communicated from the impedance measuring device (116) to the power control unit (118). The power control unit (118) adjusts the energy applied to tissue to maintain tissue impedance within a pre-selected and desired range.
Patent CA-2162640-A1 (CA)
Title: Process for the oxidation of hydrogen chloride
Inventor: DUMMERSDORF HANS-ULRICH
IPC: C01B7/04
Filed: 1995-11-10
Abstract: In the process, the reactant gas mixture consisting of hydrochloric acid and oxygen is reacted in the presence of a salt melt as catalyst in such a way that the reactant gas mixture is fed through a reaction zone as the continuous phase and the salt melt is dispersed within this reaction zone in the continuous phase of reactant gas mixture and the reaction gas being produced therefrom.
Patent CA-2162889-A1 (CA)
Title: System and method for distributing power to gas discharge lamps
Inventor: QUAZI FAZLE S
IPC: H05B41/24
Filed: 1994-05-13
Abstract: A system and method for reducing installation costs of gas discharge lignting provides a central AC-DC power converter (302) which is connected into an AC lighting circuit and thereafter transmits DC power through the power distribution wires (306) to individual lighting locations (305). DC-powered resonant inverter driving circuits (304) are provided and connected to the DC power where lighting is desired. The system is particularly useful in retrofitting existing buildings or individual light fixtures which use incandescent lamps with more energy-efficient fluorescent metal halide, and high pressure sodium types of gas discharge lamps.
Patent CA-2168606-A1 (CA)
Title: Appliance top assembly
Inventor: KATZ JONATHAN MARC
IPC: D06F39/12
Filed: 1996-02-01
Abstract: A top assembly for an appliance, such as a top loading clothes washer, includes a top support member.  A top panel is attached to and positioned over the support member.  The top panel terminates forward of the rear of the support member and includes a rear wall and end caps.  The end caps are mounted on the support member and extend portion extending side to side of the support member.  A control housing includes an assembly of a re reward of the rear portion of the top panel and the rear wall extends across the rear of the support member.  The control housing also includes a control panel assembly mounted on the rear portion of the top panel and attached to the rear wall and end cap assembly.
Patent CA-2169568-A1 (CA)
Inventor: BILLIERES JEAN
IPC: B60C15/06
Filed: 1994-09-07
Abstract: Afin de remédier au manque d'endurance des bourrelets (B) d'un pneumatique dont le rapport de forme H/S est faible, tout en améliorant confort de roulage, l'armature de carcasse (1) radiale est ancrée dans chaque bourrelet (B) à une tringle (2) en allant de l'extérieur à l'intérieur en formant un retournement (10), ledit retournement étant situé dans un angle .alpha. ouvert axialement vers l'intérieure et radialement vers l'extérieur, au plus égal à 45° et délimité par deux demi-droites OD1 et OD2 tangentes au cercle circonscrit à la tringle (2), la demi-droite la plus proche de l'axe de rotation étant parallèle audit axe.
Patent CA-2170771-A1 (CA)
Title: Transducer Activated Tool Tip
Inventor: FOULKES HARVEY B
IPC: A61C17/00
Filed: 1995-06-27
Abstract: A transducer activated tool for contacting workpiece surfaces and directing fluid adjacent to said surfaces is disclosed. The tool may be ultrasonically activated by attachment to an insert (11) that includes a magnetostrictive element (14). The tip (20, 50, 60, 80, 90) includes distal surfaces (58, 63, 81, 95) shaped to contact the workpiece and additionally includes a fluid passageway (45, 53, 61, 91) internal to the tip (20, 50, 60, 80, 90) that is bored generally along the centerline of the tip (20, 50, 60, 80, 90) but is offset (54, 93) from the tip axis (56, 92) such that a discharge orifice (46, 52, 57) is formed in the tip (20, 20, 50, 60, 80, 90) displaced from the distal tip end (58, 63, 81, 95). The passageway (45, 53, 61, 91) is preferably angularly offset (54, 93) so that the discharge orifice (46. 62, 57) is formed in the distal end (58, 63, 81, 95) of the tip (20, 50, 60, 80, 90) about 2-8 mm from the distal end (58, 63, 81, 95) of the tip. The tip (20, 50, 60, 80, 90) when shaped to conform to dental or tooth surfaces is particularly useful as a dental tool. In another embodiment the fluid passageway (91) is eccentrically offset (93) from the tip axis (92) wherein the passageway (91) is substantially parallel to the center axis (92) but displaced therefrom preferably by about 0.1 to 0.5 mm. The tip end and fluid delivery passageway discharge orifice (46, 62, 57) are located relative to each other such that fluid is provided to the workpiece or tip without the formation of excessive spray and without weakening the distal tip such that it is sufficiently strong to provide useful service in resisting flexural stresses and the like.
Patent CA-2170860-A1 (CA)
Title: Near-field optical microscope
Inventor: HECHT BERT
IPC: G01N37/00
Filed: 1993-10-04
Abstract: The invention relates to a near-field optical microscope, in particular to a scanning near-field optical  microscope (SNOM),   comprising   means   for determining the intensity of light emerging from the near-field at a direction differing from the direction  perpendicular to the surface of the sample to be  examined, preferably emerging at an angle .theta. larger than the critical angle.  Superposing light with   different  azimuth  angles  ? by using   suitable   positioned  mirrors and   beamsplitters  enables  imaging with higher contrast.  The invention allows an accurate control of the distance between the probing tip of the SNOM and the sample by using  the measured  intensity in a feedback loop.
Patent CA-2171492-A1 (CA)
Inventor: DUTTWEILER DONALD LARS
IPC: H04M9/08
Filed: 1996-03-11
Abstract: Acoustic echos are canceled by employing a first echo canceler having a comparatively short first impulse response synthesis capability which is connected between a transmit path and receive path for generating a first error signal and for canceling echo signals in the transmit path, and at least a second echo canceler having a comparatively long second impulse response synthesis capability connected in parallel with the first echo canceler between the transmit and the receive path.  The second echo canceler is supplied with the first error signal from the first echo canceler and is adaptively operating simultaneously with but independent of the first echo canceler to further cancel echos in the transmit path. More specifically, the first echo canceler is intended to capture the direct path acoustic echo and any early arriving echos that are stable which are not time varying.  Since the direct path acoustic echo and the stable early arriving echos are not time varying, the adaptive adaptation rate, i.e.  loop gain, of the first echo canceler adaptation circuitry can be chosen to be a very small value so that it can adapt accurately in the presence of undetected near-end speech.  Then, with the direct path acoustic echo and any stable early arriving echos having been substantially removed by the first echo canceler, the first error signal output from the first echo canceler has a comparatively weaker echo component to corrupt any near-end speech that might bepresent and, consequently, the near-end speech can be more reliably detected by monitoring the first error signal from the first echo canceler.  Since the near-end speech can be more reliably detected by employing the first error signal from the first echo canceler, the adaptation rate of the second echo canceler can be chosen to be at a significantly faster rate without undo impairment caused by undetected near-end speech. In a specific embodiment of the invention, the first echo canceler employs a transversal filter having predetermined  fixed coefficients in order to cancel the direct path acoustic echo component and any stable early arriving echos.
Patent CA-2171772-A1 (CA)
Title: Mounting clamp for holding together metal sheets and a tool for removing the clamp
Inventor: GMEILBAUER ENGELBERT
IPC: B25B31/00
Filed: 1996-03-14
Abstract: A mounting clamp for holding together metal sheets and a tool for removing the clamp. The clamp has two legs that define a clamping gap that terminates in a bore hole. The free ends of the legs are provided with bevels with an insertion angle of 20° to 40° relative to the clamping gap. The insertion opening has a width that is slightly larger than the width of the widest stack of sheets to be held by the clamp. The clamping gap has a height that is at least three-times the width of the clamping gap. The diameter of the bore hole is at least one-and- one-half times greater than the width of the clamping gap. The removal tool has an insertion pin arranged at one end of a handle part and can be introduced into the bore hole of the clamp with slight play. The insertion pin is provided with a slit that runs in the longitudinal direction of the handle part.
Patent CA-2172222-A1 (CA)
Title: Inflatable building blocks
Inventor: SITEMAN DENNIS
IPC: E04B2/02
Filed: 1996-03-20
Abstract: An inflatable building block is formed of an air impermeable flexible  envelope  forming  a  rectangular polyhedron, a valve for regulating flow of air into and out of the air impermeable flexible envelope, and connectors on at least two opposed sides of the rectangular polyhedron for connecting the inflatable building block to another inflatable building block. Opposed sides of the rectangular polyhedron  are  internally  connected to  each  other  by connecting members that limit movement of the rectangular sides away from each other. The connecting members are preferably  flexible  membranes  that  connect  to the rectangular sides along lines that bisect the rectangular sides, and which, upon inflation of the inflatable building block, the connecting lines between the membranes and the rectangular sides  lie in the faces of the rectangular polyhedron formed by the inflatable building block. The connectors may be of the hook and loop type. The inflatable building blocks are preferably used in sets, some of the building  blocks  being  cubes,  and  some  rectangular polyhedrons with two opposed sides matching the sides of the cubes.
Patent CA-2175469-A1 (CA)
Title: Derotating orthotic devices for the correction of scoliotic deformities
Inventor: LABELLE HUBERT
IPC: A61F5/02
Filed: 1994-12-22
Abstract: A series of ortheses for the treatment of scoliotic deformities are each adapted for obliquely applying dynamic derotational forces on the thorax and lumbar spine of the user in opposite directions combined with a kyphosing action on the thorax and a lordosing action on the lumbar spine. The orthoses are designed in order that the correcting forces can be applied on the user's trunk with various degree of mechanical force while allowing for complete or partial mobility of the trunk. The various orthoses can treat small moderate and substantially severe deformities which are supple or rigid. A supple orthosis (100) for small and supple curves comprises a thoracic garment encircling the upper thorax (102), short pants (104) to provide a grip around the pelvic girdle and the upper thighs, and upper and lower semi-elastic straps (106, 108) having supple thoracic and lumbar pads (120, 122), respectively, attached respectively to the garment and the pants. The straps (106, 108) which connect the pads (120, 122) encircle obliquely thetrunk for exerting the derotational forces and the kyphosing and lordosing actions. For moderate and supple curves, semi-rigid thoracic, lumbar and pelvic pads (120, 122) are incorporated in the orthosis (100). For the rigid curves, the orthosis comprises a supple plastic shell encircling the pelvic girdle, a vertical member extending posteriorly and upward from the shell and comprising thoracic and lumbar pads. Semi-elastic strap means extend anteriorly between the pads while encircling obliquely the trunk. The vertical member can be integral with the shell or, for more rigidity, can consist of metallic member attached to the shell.
Patent CA-2176432-A1 (CA)
Title: Plate-type chemical reactor
Inventor: DUGAN JEFFREY S
IPC: B01J19/00
Filed: 1996-05-13
Abstract: A plate-type chemical reactor and method of using same to react two or more mutually separated fluid component streams are disclosed, wherein the reactor contains one or more reactor plates including at least one reaction-chamber reactor plate; at least one reaction chamber formed on a front facial surface of the reaction-chamber reactor plate(s); and at least one heat exchange channel passing through the reaction-chamber reactor plate(s) such that at least one section of heat exchange channel(s) is disposed in a heat exchange relationship with the reaction chamber(s); the reaction chamber containing: a plurality of inlet means for receiving and directing a plurality of mutually separated fluid component streams, a first mixing zone for mixing the separated fluid component streams to form a single at least partially reacted multicomponent fluid stream thereof, and at least one outlet means.
Patent CA-2177938-A1 (CA)
Title: Process for producing secondary butyl acrylate by reacting acrylic acid with butene isomers
Inventor: PAUL JEAN-MICHEL
IPC: C07C69/54
Filed: 1996-05-31
Abstract: Sec. butyl acrylate (I) is prepd. by reacting acrylic acid (II) with at least one butene in the presence of a macroporous cationic resin contg. sulphonic acid gps., using a mol. ratio (II) to butene(s) of more than 1, and separating the desired (I) from the crude reaction prod. which consists of residual (II), dissolved isomeric butenes, (I), octenes, 2-butanol and heavy addn. products.
Patent CA-2182152-A1 (CA)
Title: Data recording method and apparatus, data record medium and data reproducing method and apparatus
Inventor: FUJINAMI YASUSHI
IPC: H04N7/52
Filed: 1996-07-26
Abstract: A data recording method is provided in which video data and plural channels of language data are divided into packets as units, and the video data and the plural channels of language data are recorded on a record medium along with the control information containing a flag designating a reproducing channel of the language data matched to a reproducing pattern of the video data. Thus it becomes possible to record video data and plural channels of language data on a record medium so that a reproducing channel for the language data matched to the reproducing pattern of the video data will be selected and the plural channels of language data matched to the reproducing pattern and the video data will be reproduced by a reproducing system.
Patent CA-2184170-A1 (CA)
Inventor: SHANDER DOUGLAS
IPC: A61Q5/00
Filed: 1995-03-08
Abstract: Mammalian hair growth is reduced by applying to the skin a composition including an inhibitor of ornithine aminotransferase.