baber/WOPTO huggingface dataset:
Patent CA-2042391-C (CA)
Title: Dual writing element retractable pen
Inventor: LONGARZO ROLAND
IPC: B43K24/14
Filed: 1990-08-21
Granted: 1994-01-11
Abstract: DUAL WRITING ELEMENT RETRACTABLE PEN                ABSTRACT OF THE DISCLOSURE    A dual writing element retractable pen includes coaxial upper and lower barrel members, an upper cylindrical cam part being integrally formed with the upper barrel member and having a bottom cam surface.  A matching lower cylindrical cam part telescopes the upper barrel member and is oriented so that the confronting end faces of the cam parts delineate a cam groove having opposite oppositely inclined sections.  A rotatable guide member longitudinally slideably supports pen cartridge coupled chucks having followers engaging respective cam groove sections, the guide member being coaxial with the barrel.  In one form, the lower cam member is integrally formed with the lower barrel member and, in another form, the lower cam and barrel members are an integrally molded unit and the guide member terminates in an external finger knob.
Patent CA-2042714-C (CA)
Title: Method and apparatus for displaying a plurality of articles
Inventor: RAMEY ARTHUR J
IPC: G09F7/00
Filed: 1991-05-16
Granted: 1995-07-18
Abstract: A preferred embodiment includes a support member for supporting a plurality of articles.  A directory, listing the articles supported by the support member, is operably associated therewith.  The directory includes a first area listing a first group of articles and a second area listing a second group of articles.  A group location identifier identifies the location of the first and second groups of articles.  The group location identifier includes first and second members for identifying the location of the first and second groups of articles, respectively.  An article location identifier identifies the location of the articles in at least the first group of articles.  The article location identifier is removed from the group location identifier and the articles in the first group of articles.          At least a portion of the first area, at least a portion of the first member and at least a portion of the article location identifier are formed from a first distinctive color.  At least a portion of the second area and the second member are formed from a second distinctive color.
Patent CA-2046161-C (CA)
Inventor: MIYAZAKI MASAMI
IPC: C23C14/08
Filed: 1991-07-03
Granted: 2001-08-21
Abstract: A low emissivity film which comprises: a substrate; and a coating of oxide and metallic films alternately formed on the substrate in a total of (2n+1) layers where n is an integer being equal to or more than 1, with the innermost layer being an oxide film, wherein the oxide film (B) formed on the outer side of the metallic film (A) being most apart from the substrate, has an internal stress which is equal to, or less than 1.1 x 10 10 dyne/cm2.
Patent CA-2047841-C (CA)
Title: Metal-magnesium compounds, process for preparing same and the use thereof for the preparation of finely divided metal and alloy powders and intermetallic compounds
Inventor: BOGDANOVIC BORISLAV
IPC: C01G49/00
Filed: 1991-07-24
Granted: 2003-05-27
Abstract: The present invention relates to metal-magnesium compounds, a process for preparing same and the use thereof, especially for the preparation of finely divided, possibly amorphous, metal and alloy powders and/or of intermetallic compounds, both procedures via a non-metallurgical route in organic solvents under mild conditions.
Patent CA-2059234-C (CA)
Title: Preparation of lithium soap thickened greases
Inventor: HARRIS JOHN W
IPC: C10M117/04
Filed: 1992-01-13
Granted: 2001-12-25
Abstract: The invention provides a process for the preparation of a lithium soap thickened grease which comprises heating a mixture of an oil and a lithium base, and optionally also a calcium base, to at least 100°C, thereafter adding a C10-24 saturated or unsaturated fatty acid, and heating the resulting mixture at a temperature in the range 110°C to 200°C until a thickened grease is obtained.
Patent CA-2060593-C (CA)
Title: Orbiting scroll member assembly
Inventor: RICHARDSON HUBERT JR
IPC: F04C23/00
Filed: 1992-02-04
Granted: 1997-09-16
Abstract: An orbiting scroll member of a hermetic scroll-type compressor, including a scroll plate, a drive plate, and connecting pins coupling the two plates together in a manner permitting axial separation therebetween.  A seal is unattachedly retained intermediate the scroll plate and the drive plate by a groove formed in the scroll plate.  The seal extends out of the groove toward the drive plate to slidingly seal thereagainst. The seal defines fixed radially inner and outer portions of the scroll plate that are exposed to oil at discharge pressure and refrigerant at suction pressure, thereby imparting an axial compliance force.  In one embodiment, the orbiting scroll plate is permitted to move transversely relative to the drive plate, by virtue of loosefitting connecting pins, thereby facilitating radial compliance.
Patent CA-2060939-C (CA)
Title: Coatings for use with business forms, security documents, or safety paper
Inventor: DOTSON MARK DOUGLAS
IPC: B41M3/14
Filed: 1992-02-10
Granted: 1996-08-20
Abstract: Carbonless coating compositions which can be printed onto one or more sheets of a business form or mailer to provide a visible image which is sharper and darker than previous coatings are provided.  The compositions also find use on security documents and safety papers to provide a covert image on the document beneath information which may be subject to attempted alteration, such as the amount written on a check.  The covert image becomes visible upon the application of pressure or solvent in the area coated to provide evidence of the attempted alteration.  The self-contained composition includes an admixture of a color former, a color developer, and a plurality of pressure-rupturable microcapsules containing a solvent.  Another solvent-sensitive composition includes an admixture of a color former and a color developer.
Patent CA-2064277-C (CA)
Title: Bone fixation apparatus
Inventor: SMALL LAURA C
IPC: A61F2/44
Filed: 1992-03-27
Granted: 2000-05-16
Abstract: A surgical spinal fixation system includes a bone bolt having first end portions that are adapted to be surgically implanted into a patient's spine at first and second spaced apart positions and a central portion of the bone bolt defining a load transfer surface, the bone bolt having a second upper threaded sections for threadably receiving a nut at a shaped, countersunk interface. As an alternate embodiment, a bone screw provides an upper enlarged head with a lower coarsely threaded shank. A plate having upper and lower surfaces and outer opposed edges is provided with an elongated slot for accommodating a selected bone bolt or bone screw. The plate edges carry fine adjustments extending between the upper and lower surfaces of the plate and a load transfer washer interfaces the plate and the selected bone bolt or bone screw for distributing load (and reducing stress) from the bone bolt (or screw) to the plate.
Patent CA-2067324-C (CA)
Title: Stretch and chirp waveform format for reduced generating and receiving hardware complexity
Inventor: TAYLOR STEPHEN D
IPC: H04B1/26
Filed: 1992-04-27
Granted: 1995-03-14
Abstract: Unique stretch and chirp waveform formats are de-scribed which allow significant simplification of radar signal generation and receive processing hardware.  The new formats produce a non-zero intermediate frequency (IF) to facilitate in-phase and quadrature  (I/Q)  processing but allows the use of a homodyne type of receiver architecture. That architecture greatly simplifies the receiver hardware because the first local oscillator (LO) signal is simply a sample of the transmitter drive signal and no second LO is required.  The non-zero IF is achieved by control of the timing and start frequency of the first LO waveform for stretch processing and timing of the transmit signal gating for chirp processing.
Patent CA-2073810-C (CA)
Title: Pneumatic actuator for a patient call system
Inventor: DWYER PHILLIP W
IPC: H01H3/24
Filed: 1992-07-14
Granted: 2003-10-07
Abstract: A pneumatically actuated switching device comprises a pneumatic bulb including a base plate for anchoring the bulb by frictional contact with surfaces in contact therewith. The base plate further having pneumatic seal about an outer periphery thereof, and an actuator dome having a convexly extended pneumatic activation wall supported by an outer peripheral annular rim engaged with the base plate for pneumatic sealing with the seal to define a pneumatic pump chamber. The bulb further including a conduct for conducting a quantity of air pressurized by operation of the dome and, electrically conductive switch responsive to the discharge of a volume of air pressurized by the pneumatic bulb for producing a corresponding electrical signal. The activation wall of the dome includes a circular ring wall section having at the inside diameter thereof a depressed projecting central wall from where there extends a support post at the inside of the actuator dome for maintaining elasticity of the pneumatic pumping chamber acted on by the circular ring. The base plate includes an array of protrusions for anchoring of the pneumatic bulb.
Patent CA-2074611-C (CA)
Title: Engine air deflector
Inventor: LEE MICHAEL CHARLES
IPC: B60K11/00
Filed: 1992-07-24
Granted: 1996-09-10
Abstract: A cooling system air deflector positioned within an engine enclosure for deflecting cooling system outlet air away from a plastic grille and onto a muffler positioned within the enclosure.  Ballast weights are positioned to then deflect the air out of the enclosure through an opening that is spaced from the grille.
Patent CA-2087991-C (CA)
Title: Modular roof structure
Inventor: HUANG YEN T
IPC: E05F15/60
Filed: 1993-01-25
Granted: 2005-02-08
Abstract: A roof structure is formed with first and second Y-shaped modular construction members. The first construction member is comprised of first, second and third branches of substantially equal length. The second construction member is comprised of fourth, fifth and sixth branches of substantially equal length. The first and fourth branches are coupled together along a common axis to define an apex or ridge of the roof structure. The second, third, fifth and sixth branches are coupled between the apex and respective first, second, third and fourth corners of a rectangular base frame. At least one gable is positioned intermediate the first and second construction members. In one embodiment, an intermediate section of the roof structure is lengthwise adjustable to adjust the length of the roof structure along the aforementioned common axis. The roof structure of the present invention is adapted to accommodate a foldable or inflatable roof cover.
Patent CA-2088557-C (CA)
Inventor: GIANOTTI MARC
IPC: A61F2/90
Filed: 1993-02-01
Granted: 1996-03-12
Abstract: A catheter (2) with a self-expanding stent (5)  of a permeable mesh of stiff intersecting fibers is provided.  A tubular outer catheter shaft (3) holds the stent (5) under tension at its distal end and from which the stent (5) can be released for placement.  A displaceable inner catheter (4) inside the tubular outer catheter shaft  (3)  supports the stent (5) axially at its proximal end.  In order to release the stent (5), the outer catheter shaft (3) is retracted with respect to the inner catheter (4).  A process for producing this catheter  (2)  is also described.   The stent  (5)  is secured by gripping it at its proximal end in such a way that it forms a permeable mesh cone that expands automatically together with the stent (5) and has a radius that increases gradually to the radius of the relaxed stent (5).  The stent (5) is securely anchored on the inner catheter (4) with the help of the mesh cone.
Patent CA-2089495-C (CA)
Title: Purified thermostable nucleic acid polymerase enzyme from thermotoga maritima
Inventor: GELFAND DAVID H
IPC: C12N1/21
Filed: 1991-08-13
Granted: 2007-04-03
Abstract: A purified thermostable enzyme is derived from the eubacterium Thermotoga maritima, The enzyme has a molecular weight as determined by gel electrophoresis of about 97 kilodaltons and DNA  polymerase I activity. The enzyme can be produced from native or recombinant host cells and can be used with primers and nucleoside triphosphates in a temperature-cycling chain reaction where at least one nucleic acid sequence is amplified in quantity from an existing sequence.
Patent CA-2091886-C (CA)
Title: Multiple promoter baculovirus expression system and defective particle production
Inventor: OKER-BLOM CHRISTIAN E G
IPC: A61K39/00
Filed: 1991-09-17
Granted: 1992-03-18
Abstract: The invention describes the construction of a genetically engineered virus or vi rus hybrid (e.g. animal or human pathogen) which is not capable of replicating itself but is essentially identical to the a uthentic pathogen in terms of structure and antigenicity. This baculovirus is constructed such that the non-structural viral genes are tru ncated, mutated or both and are located 3' and directly under the control of an early baculovirus gene promoter and the structu ral viral genes are located 3' and directly under the control of a late baculovirus gene promoter. This genetically baculovirus i s therefore capable of temporal regulation and successive synthesis of non-structural proteins. This invention enables the design and construction of a virus particle or virus hybrid with specific antigenic properties which further allows for the safe and inexpensive production of vaccines and diagnostics.
Patent CA-2092021-C (CA)
Title: One-piece knuckle assembly
Inventor: MITCHELL JAMES
IPC: B60G3/24
Filed: 1993-03-19
Granted: 2000-07-18
Abstract: A one-piece steering knuckle assembly for heavy commercial vehicles such as trucks has a flanged body wherein the tie rod arm and in some instances the steering arm extend from the flanged body in a one-piece manner. The flanged body is constructed and arranged to receive a brake assembly thereon and the wheel spindle extends from the flanged body also in a unitary manner. In a preferred manner, the steering or the tie rod arms are forged to the flanged body through enlarged bosses which provide for connection to an axle by a king pin.
Patent CA-2092874-C (CA)
Inventor: TURBAN KARL-ALBERT
IPC: H04J13/00
Filed: 1993-03-29
Granted: 2000-08-22
Abstract: During data transmission or transmission of redundancy-reduced signals, the traffic volume and, hence, the necessary transmission capacity are not constant. Instead of the prior art approach of more or less intensive use of the total capacity, the basic idea of the invention is coded transmission and simultaneous use of more or less many, mutually orthogonal codes. An embodiment shows the use of a mixed code-division multiplex (CDMA)-time division multiplex (TDMA) radio system. The number of channels assigned to a signal station (CDMA) is determined anew frame-by-frame (TDMA) in response to requests in preceding frames.
Patent CA-2095857-C (CA)
Title: A slide clamp for use with an intravenous pump
Inventor: MYREN ERIC
IPC: A61M5/142
Filed: 1992-09-25
Granted: 1999-03-16
Abstract: The present invention provides an apparatus for use in a peristaltic pump (20) which prevents an inadvertent free flow condition prior to loading or after removal of an I.V. tube (26) in the peristaltic pump (20) and which also prevents the inadvertent occlusion of a loaded I.V. tube (26) in the peristaltic pump (20). A standard I.V. tube (26) has a slide clamp (109) provided thereon. The apparatus includes an I.V. tube groove (29) into which the I.V. tube (26) is positioned, a slide clamp receiving area (62) into which the slide clamp (109) is inserted, and a biased sliding member (81) which the inserted slide clamp (109) engages such that the I.V. tube (26) cannot be loaded into the apparatus without the slide clamp (109) occluding the I.V. tube (26). The present invention also contemplates a slide clamp (109') compatible with the apparatus having a surface pad (125) for facilitating automated identification of the slide clamp (109') in cooperation with a non-obstructive sensor (85) in the safety apparatus.
Patent CA-2099066-C (CA)
Title: Polyamide resin composition and molded articles obtained therefrom
Inventor: EBARA KENJI
IPC: C08K13/04
Filed: 1993-06-23
Granted: 1999-09-21
Abstract: The present invention provides a polyamide resin composition which comprises: (A), as a polyamide component, 30-95% by weight of a polyamide resin which is a half-aromatic polyamide comprising (a) 70-95% by weight of hexamethyleneadipamide unit obtained from adipic acid and hexamethylenediamine and (b) 5-30% by weight of hexamethyleneisophthalmide unit obtained from isophthalic acid and hexamethylenediamine and which has a sulfuric acid solution viscosity ~r of 1.5-2.8 and (B) 5-70% by weight of at least one inorganic filler selected from glass fiber, carbon fiber, mica, talc, kaolin, wollastonite, calcium carbonate and potassium titanate. Molded articles having a high surface gloss arid comprising said resin composition are also provided.
Patent CA-2102108-C (CA)
Inventor: LAROSA CHRISTOPHER P
IPC: H03D1/04
Filed: 1993-01-21
Granted: 1999-08-10
Abstract: The present disclosure includes a discussion of a method of compensating for distortion of a received signal's phase. The distortion is caused by the asymmetrical characteristics of a voltage limiter (301). This compensation allows the received signal (115) to be sampled at the positive and negative zero-crossings reducing the requirements of a local oscillator in a radiotelephone system. First, the phase of the received signal is sampled at the positive and negative zero-crossings, forming a corresponding positive-crossing (401) and a negative-crossing (407) phase value for the received signal. Second, the negative-crossing and positive-crossing phase values are combined, forming a first difference signal (409). Third, an estimated error signal (417) is formed using the first difference signal. Fourth, the estimated error signal is combined (419) with the positive or negative zero-crossing phase signals, substantially eliminating the asymmetrical distortion.
Patent CA-2102329-C (CA)
Inventor: WORSEY PAUL N
IPC: F42D1/18
Filed: 1993-11-03
Granted: 1997-10-07
Abstract: A blast control plug is disclosed characterized by a substantially hollow conical portion open at the base.  A short skirt is integral with the base and projects downwardly therefrom, where is the outer face of the junction between the conical portion and the skirt is rounded and has a diameter less than the diameter of the blast hole in which it is to be used.  A short integral spigot projects upwardly from the apex of the conical portion, the spigot having a recess into which one end of a separate positioning rod may be inserted.
Patent CA-2106634-C (CA)
Inventor: EHRLICH ANTHONY G
IPC: B61L3/24
Filed: 1993-09-21
Granted: 1996-10-22
Abstract: A transmitter for transmitting cab signal and track signal currents to a pair of rails includes the circuitry for mitigating runby currents which are not fully shunted by the rail vehicle.  High runby currents at the leaving end of a block are reduced by sensing the presence of a railway vehicle in the leaving end of the block.  In response to sensing the rail vehicle the cab signal voltage is reduced to a lower level.  The lower level and the position at which the railway vehicle is sensed are adjusted so as to permit a lead vehicle to receive at least a minimum cab signal value throughout its journey while assuring that following trains receive less than the minimum cab value required to activate the vehicle based receiver.  The train is sensed by the voltage drop across the rails as the train approaches.  A relay is used to respond to the presence of the train by applying a lower cab signal to the rails.
Patent CA-2106699-C (CA)
Inventor: WINSLOW DONALD W
IPC: E21B34/12
Filed: 1993-09-22
Granted: 1997-12-09
Abstract: A packer apparatus with a circulating port.  A housing of the packer has  inflation passages,  circulating passages, treating fluid passages,  and  equalizing passages defined therein.   In a straddle packer embodiment, upper and lower packers are mounted on the housing on opposite sides of an outlet of the treating fluid passage.  A circulation valve with a sliding differential pressure actuated valve sleeve is disposed below the packers.   An inner mandrel is slidably received in the central opening of the housing.  The mandrel has a mandrel bore and has upper inflation and circulating ports,  lower inflation ports,  upper and lower equalizing ports, a treating port and lower circulating ports, all of which communicate with the mandrel bore.  The valve sleeve has a valve port.  A lug and endless J-slot is operably associated with the housing and mandrel for controlling a telescoping position of the mandrel relative to the housing in response to reciprocation without rotation of the mandrel relative to the housing.   The mandrel may also be used to lock the valve sleeve in a closed position.   The lug and J-slot define a repeatable sequence of inflating  (or deflating)  position, intermediate   position,   circulating  position,   treating position, equalizing position, and ready position wherein the tool is ready to return to the original inflating position on the next telescoping stroke of the mandrel within the housing.
Patent CA-2108293-C (CA)
Title: Thixotropic wood adhesive gel
Inventor: ANDERSON JOHN
IPC: C09J131/04
Filed: 1993-10-13
Granted: 2003-04-29
Abstract: A water based thixotropic adhesive gel is disclosed which comprises; an aqueous emulsion of polyvinyl acetate in an amount sufficient to form adhesive bonds on wood; partially hydrolyzed polyvinyl alcohol in an amount sufficient to provide wet tack of the adhesive; glyoxal in an amount sufficient to provide water resistance to the adhesive; and wood flour in an amount sufficient to increase the water resistance imparted by the glyoxal and to provide sanding and staining properties to the adhesive; and xanthan gum in an amount sufficient to provide a thixotropic index and viscosity allowing extrusion of the gel from a flexible dispenser having a dispensing opening of about 0.073 inches in diameter by applying finger-pressure to the dispenser while, upon extrusion, the gel forms a bead which does not run when applied in a horizontal line on wood in a vertical plane.
Patent CA-2108455-C (CA)
Inventor: EDWARDS PETER J
IPC: A61P1/04
Filed: 1992-04-10
Granted: 1999-01-19
Abstract: A pharmaceutical composition for use in the treatment of gastric disorders associated with Helicobacter pylori comprising a bacteriocin antimicrobial agents optionally co-administered with a release-delaying substance.
Patent CA-2108843-C (CA)
Inventor: MAEDA KEIJIRO
IPC: H04R19/00
Filed: 1993-10-20
Granted: 2001-04-03
Abstract: An electrostatic loudspeaker has electrodes 24 and 26 arranging multiple plate electrodes 24A to 24D, 26A to 26D insulated each other on both sides of movable electrodes 12, thereby being capable of efficiently producing a large sound pressure level.
Patent CA-2110880-C (CA)
Title: Electrically controllable filter device
Inventor: NILSSON BJORN OLLE
IPC: G02F1/313
Filed: 1993-12-07
Granted: 2004-11-23
Abstract: The present invention relates to an electrically controllable filter device comprising an electrode structure which induces a filter for waves within a given wavelength range. The electrode structure is so formed that it within the given wavelength range acts as a filter merely upon electrical feeding whereas it in the absence of electrical feeding has no filtering effect. Furthermore, the electrode structure is so arranged that the filter depending on how the electrode structure is fed can be tuned to a number of different discrete frequencies.