baber/WOPTO huggingface dataset:
Patent CA-2080906-C (CA)
Inventor: BLOYS JAMES B
IPC: C04B24/26
Filed: 1991-04-03
Granted: 2004-06-29
Abstract: A dispersant for spacer fluids, cement slurries, completion fluids and mixtures of drilling fluids and cement slurries used for drilling and cementing subterranean wells. the dispersant may be a polymer, wherein the polymer is hydroxypropyl acrylate-acrylic acid copolymer; sulfonated vinyl toluene-maleic anhydride copolymer; sulfonated vinyl toluene-maleic acid copolymer; sulfonated methyl polyacrylamide; sulfonated ethyl polyacrylamide; sulfonated phenyl polyacrylamide; a copolymer of ethylenic acids, acrylamides acid ethylenic esters of phosphoric acid; acrylic acid polymers; acrylamide polymers; sulfonated copolymers of acrylic acid and acrylamide; phosphonated copolymers of acrylic acid and acrylamide; or sulfonated and phosphonated copolymers of acrylic acid and acrylamide.
Patent CA-2084463-C (CA)
Title: Six-way manual seat adjustment mechanism
Inventor: JOHNSON RICHARD F
IPC: B60N2/18
Filed: 1992-12-03
Granted: 1999-01-12
Abstract: A manually-operable six-way seat adjustment mechanism having a pair of laterally spaced tracks which are fixed securely to the vehicle's floor pan.  A pair of carriages are slidably coupled to the tracks and are operable for synchronous longitudinal movement thereon. A seat assembly is fixedly secured to seat frame members supported from the elongated carriages for longitudinal movement therewith. A horizontal adjustment mechanism is operatively interconnected between each of the tracks and carriages to enable a seat occupant to selectively adjust the longitudinal position of the assembly. The manually-operable six-way seat adjustment mechanism also includes a front vertical adjustment mechanism and a rear vertical adjustment mechanism which are each operably interconnected between the laterally spaced seat frame members and the carriages to enable selective and independent vertical adjustment of their respective front and rear portions of the seat assembly. Finally, a travelling seat belt buckle anchorage arrangement is provided in association with at least one set of the slidably interconnected tracks and carriages for enabling selective longitudinal movement of a seat belt buckle anchor point with the seat assembly along the tracks while inhibiting vertical and horizontal separation therebetween.
Patent CA-2084925-C (CA)
Title: Ac power amplifier having current limit control
Inventor: DITTMER TIMOTHY W
IPC: H03F3/60
Filed: 1992-12-09
Granted: 1996-10-22
Abstract: An AC power amplifier is disclosed for amplifying an AC input signal while limiting the current drawn by the amplifier. The amplifier includes at least one transistor having an input circuit for receiving an AC input signal as well as a DC bias voltage and an output circuit connected to the DC voltage source for drawing current therefrom during conductive periods of the transistor. The transistor exhibits the characteristic of being non-conductive when the AC input signal together with the DC bias voltage are less positive than a DC threshold voltage level and is conductive when the AC input signal and the DC bias voltage are together more positive than the DC threshold voltage level whereupon DC current is drawn by the output circuit from the DC voltage source. The DC current is sensed and a sense signal is provided having a magnitude in accordance therewith. The sense signal is compared with a reference current level and a control signal is provided having a value which varies as a function of the comparison. The control signal is decreased in magnitude when the sense current exceeds the reference current level . The DC bias voltage is then decreased to thereby decrease the conductivity of the transistor and thereby limit the magnitude of the DC current to that of the reference current level.
Patent CA-2087749-C (CA)
Title: Method and apparatus for making armatures for electrodynamic machines
Inventor: BRADTMUELLER LYNN E
IPC: H02K15/04
Filed: 1993-01-21
Granted: 2002-07-02
Abstract: An operator sequentially inserts into an automated system for making armatures for electrodynamic machines loaded magazines containing a required number of hairpin conductors for an armature to be made, an armature core comprising a plurality of substantially aligned laminations preassembled to form the core and a commutator, and removes armatures completed by assembling these components. All the insertion and removal steps are performed from an operator's position such that operation of the system embodying the present invention is easily and conveniently performed even though the components and completed armatures can be of substantial weight. The use of a hairpin magazine, including the hairpin conductors required for an armature, permits simultaneous transfer of all, the hairpin conductors into upper twist tooling wherein upper ands of the hairpin conductors adjacent and turn portions of the conductors are moved apart relative to one another. The frog leg conductors thus formed are removed from the upper twist tooling and inserted into slots of an armature core which has bean earlier inserted into the system.      The frog leg conductors are fully pressed through the armature core into lower twist tooling which than is operated to move the ends of the conductors extending beyond the armature core away from one another and into alignment with other conductors for insertion into a commutator for the armature, which commutator was earlier placed into the system. The commutator is properly positioned beneath the armature core which is then pressed onto the commutator. The completed armature is moved to the operator's position where the operator removes the completed armature and replaces it with a commutator for the next armature.      The operator continues to insert components of armatures into the system and removes completed armatures made up by assembling the components so inserted.
Patent CA-2088049-C (CA)
Title: Carbon black and rubber composition containing same
Inventor: SOEDA MIZUO
IPC: C08L21/00
Filed: 1991-07-24
Granted: 2003-09-23
Abstract: New carbon blacks that when incorporated into rubber compositions impart increased abrasion resistance and lower hys-teresis. Also disclosed are rubber composition incorporating the novel carbon blacks.
Patent CA-2097170-C (CA)
Inventor: SHIMANSKY DAVID
IPC: A61H3/00
Filed: 1993-05-27
Granted: 1998-06-16
Abstract: A  multifunctional  mobility  device  for physically  disabled  people  comprises  a  L-shaped frame having at its lower end a platform adapted to receive thereon a user in a substantially standing position.   Front and rear wheels support the frame and the platform.   The front wheels are rotatably mounted to the frame just in front of the platform. The frame includes at its upper end a pair of grips which can be grasped by the user when standing on the platform.   Therefore,   to operate the mobility device,  the  user  must  exert  on  the  frame  a sufficient force oriented substantially in a forward direction thereby producing a pivot of the frame and of  the  platform    about  the  front  wheel  and  a rotation  of  the  front  wheel  which  results  in  a forward displacement of the mobility device and of the  user.    A  stabilizer  terminated by  a  swivel caster is provided in front of the front wheels for limiting the forward pivot of the mobility device. A retractable seat also transforms the mobility aid into a wheelchair.   The platform is then converted into a footrest.  A second pair of grips is provided to be used by the attendant for pushing the user. The  stabilizer  can  be  retracted  to  allow  the attendant  to  push the  wheelchair  on  horizontal surfaces or along inclined surfaces, such as stairs or escalators.   The mobility device is constructed of a number of connected members designed to fold for  providing  low  profile  mobility  device  for stowage and transportation purposes.
Patent CA-2099206-C (CA)
Title: Apparatus and method for changing the text portion of logos for postage meters
Inventor: HEINRICH KLAUS
IPC: G07D7/0047
Filed: 1993-06-25
Granted: 1998-10-27
Abstract: An apparatus for changing the text portion of logos for postage meters includes a printer module for a fully electronically produced postage meter imprint having an advertising logo, at least one input, a display unit, an input/output control module, a nonvolatile memory for at least unchanging parts of the postage meter imprint, a control device, and a printer control for producing a printed pattern having been formed by a  microprocessor-controlled printing process immediately prior to printing of fixed data and current data and being available in buffer-stored form.  A first memory region is provided for storing data for the unchanging parts of the postage meter imprint applying at least to a frame of an advertising logo, and an associated name identifying the logo frame.  A second memory region is provided for storing data for variable parts of the postage meter imprint applying to at least one logo text portion, and an associated name identifying the logo text portion.  A third memory region is provided for storing data for a first association of the names of the logo text portions with the names of the logo frames.  A method for changing the text portion of logos for postage meters includes loading  agreed-upon types of logos by modem or chip card, selecting a logo frame, editing a text portion of a logo in the postage meter, and composing and displaying a complete view of a postage meter imprint.
Patent CA-2102527-C (CA)
Title: A container of orientable plastic material and a method of producing the container
Inventor: PEDERSEN JAN RUNE
IPC: B29C55/30
Filed: 1992-03-30
Granted: 2005-09-06
Abstract: A container (1) of orientable plastic material comprises a mouth portion (10), a container body (20), a bottom portion (21), and a connecting portion (11) located between the mouth portion and the container body. The mouth portion and the connecting portion consist of non-oriented material, while the container body (20) and the bottom portion (21) consist of material monoaxially oriented in the axial direction (22) of the container. The container is produced in that a blank (2),of substantially amorphous material is formed with a mouth portion (10) and with a material region (11a) corresponding to the connecting region (11) of the container under formation. Both the mouth portion and the material region (11a) are, in this instance, given a mechanical configuration substantially corresponding to the configuration of corresponding parts of the finished container. The blank is formed with a tube-like portion (20a) which connects to the material region (11a) and consists of substantially non-oriented material. The material in the tube-like portion (20a) is oriented in that the material is forced through a mechanical gap (30) with a minimum gap width which at most amounts to approximately half of the wall thickness of the amorphous material.
Patent CA-2102697-C (CA)
Title: Pyrrolidine derivatives, preparation thereof and drugs containing same
Inventor: CAPET MARC
IPC: A61K31/40
Filed: 1992-07-03
Granted: 2003-09-30
Abstract: Compounds of formula: <IMAGE> their salts, their preparation and the medicaments containing them.
Patent CA-2104880-C (CA)
Inventor: GLADFELTER ELIZABETH J
IPC: C11D7/06
Filed: 1992-05-11
Granted: 2002-01-29
Abstract: The invention is an alkaline cleaning system which includes an alkaline detergent composition having a pH greater than 10.5 when diluted to a 1 wt-% aqueous solution, and an alkali stable continuous polymeric film dispersible or soluble in aqueous liquids covering the detergent composition. The invention also includes methods of using the alkaline cleaning system by apply-ing an aqueous diluent automatically (by machine) or manually through partial or complete dissolution of the film covered solid.
Patent CA-2105955-C (CA)
Inventor: HUBER HANS-PETER
IPC: B65D75/58
Filed: 1993-09-10
Granted: 1999-07-27
Abstract: The invention relates to a container (13) to hold aromatic substances (14) whichcan be sealed aroma-tight by means of a composite film (15) consisting of several laminae, whereby the composite film (15) on the top of the container is made up of an aroma-tight outer film (16) having at least two laminae (1, 3) andan aroma-permeable inner film (17) which is detachably bonded to the outer film (16) by means of a bonding agent (5). The outer film (16) can be applied onto the inner film or membrane film (17), consisting of at least two permanently bonded laminae (6, 8), whereby the lamina (8) adhering to the container is made of polyethylene and the third or top lamina (6) is made of a polymer material (6) having a different density. The surface structure of the side of the membrane film (17) facing away from the container is selected in such a way that the entire membrane film (17) stays on the container (13) when the outer film (16) is pulled off.
Patent CA-2109204-C (CA)
Inventor: KUDRNA PAUL JOHN
IPC: H04W88/02
Filed: 1993-01-08
Granted: 1996-04-09
Abstract: A hinge assembly for hingedly connecting a cover (106) and a housing there-together, such as a keypad cover and a housing of a portable radiotelephone (112). A generally tubular hinge arm (124) is formed at an end portion of the cover (106), and two hinge pins (136, 148), each having identical cam surfaces formed upon edge surfaces thereof, are inserted into the hinge arm (124) and positioned suchthat the cam surfaces of the respective hinge pins (136, 148) extend beyond oppos-ing sides of the hinge arm (124) such that the hinge pins (136, 148) are caused to rotate in unison with rotation of the cover (106). A spring member (142) is tandem-ly-positioned between the two hinge pins (136, 148) to exert spring forces thereup-on. Two cam followers (154) are affixed to the housing in a manner such that thecam surfaces of the hinge pins (136, 148) abut against the cam followers (154). The cover (106) may be rotated between an opened and a closed position and forces ex-erted upon the cam surfaces of the hinge pins (136, 148) by their abutting engage-ment with the cam followers (154) urge the cover (106) into or out of the open and closed positions during rotation of the cover (106) and urge the cover (106) to re-main in the open or the closed position in the absence of rotational moments exert-ed thereupon by the spring forces exerted upon the hinge pins (136, 148) by the spring member (142).
Patent CA-2115719-C (CA)
Title: Anodic protection method and system
Inventor: CAMERON GORDON M
IPC: F28C/
Filed: 1994-02-15
Granted: 2000-05-09
Abstract: A heat exchanger and process for use with a corrosive fluid, such as sulphuric acid, having an anodic protection system for protecting the acid-contacted surfaces wherein the anodic protection system has a plurality of elongated cathodes of such cross sectional area and length as to operably maintain voltage losses due to current flow along the cathodes at values less than the allowable passive voltage ranges at the acid-contacted surfaces.
Patent CA-2116891-C (CA)
Title: Improved golf club head
Inventor: DORIA IRIARTE D JOSE JAVIER
IPC: A63B53/04
Filed: 1994-03-03
Granted: 2005-07-12
Abstract: A golf club head of an improved aerodynamic design, which includes deep cavities for airflow stabilization. Adjacent rims of these cavities meet to form a central rib. Cavities can be joined at both ends of the rib to form a continuous cavity or can be separated along their entire length to create two different cavities and in either case run parallel to the edges of the rear face. The cavities accommodate air turbulence and swirl, and the centrifugal force produced by the swirl in those cavities in the head imparts a thrust upon it which thus minimizes drag and maximizes the force with which it strikes and drives the ball. The cavities also minimize undesired aerodynamic vibration in the golf club so as to enhance the player s accuracy.
Patent CA-2119810-C (CA)
Inventor: LEISMER DWAYNE D
IPC: E21B23/04
Filed: 1994-03-24
Granted: 1997-06-03
Abstract: An emergency downhole disconnect tool for use in a drilling well conduit having hydraulic pressure activated and electricity activated means for disconnecting the tool from the drilling assembly by disconnecting telescoping first and second releasably connected parts.
Patent CA-2125304-C (CA)
Title: Simplified count assembly
Inventor: REYNOLDS BRUCE C
IPC: G06M1/274
Filed: 1994-06-07
Granted: 1997-12-09
Abstract: A counter assembly comprising a generally circular rotatable actuator member fixedly mounted on one end of a shaft having a screw thread on its surface, a magnet made of a molded compliant magnetic material mounted on the screw thread surface of the shaft adjacent to the actuator member. The magnet is secured against rotational movement but is permitted longitudinal movement along the screw thread surface of the shaft. The actuator member is rotated in a direction to transport the magnet along the screw thread surface of the shaft away from the actuator.
Patent CA-2125770-C (CA)
Title: Automatic transmission for multi-speed bicycle
Inventor: CHATTIN JESSIE R
IPC: B62M9/124
Filed: 1992-12-11
Granted: 1998-02-17
Abstract: A derailer (30) for derailing a drive chain (28) from one sprocket to an adjacent sprocket of a multi-stage sprocket assembly (22) wherein operation of the derailer (30) thereof is automatically controlled by centrifugal force so that the driving chain (28) is automatically shifted to higher gears as the speed of the bicycle (10) increases.
Patent CA-2134071-C (CA)
Inventor: TAY SEW WAH
IPC: A61B17/34
Filed: 1993-04-23
Granted: 1999-04-27
Abstract: An apparatus (7) for closing and sealing a vascular puncture is connected to an energy supply such that heat is generated in, or thermally conducted to, the tissue, thereby thermally fusing the vascular tissue together. The method for closing and sealing a vascular puncture comprises applying radio: frequency or other energy to the tissue, the energy being sufficient to thermally fuse the tissue together, thus sealing the puncture.
Patent CA-2135589-C (CA)
Inventor: LEE HYO-SANG
IPC: F16F13/26
Filed: 1994-11-10
Granted: 1998-12-15
Abstract: A hydraulically controlled engine mounting device for mounting an engine to a body of a vehicle, includes a plurality of hydraulic pressure chambers controlled by a  single  solenoid  valve  for  effectively  reducing vibrations   at   most   frequency   vibrations.   More particularly, the invention includes first and second hydraulic pressure  rooms divided by a partition and communicating with each other by a passageway to dampen vibration of an engine with a fluid friction. A third hydraulic  pressure  room  is  formed  near  the  first hydraulic pressure room, the third hydraulic pressure room communicating with the first pressure room by a passage-aperture having a solenoid valve. A hydraulic pump is formed in a predetermined position within the third hydraulic pressure room, the solenoid valve and hydraulic pump being operated by a controller judging a vibration frequency transmitted to a vehicle body to charge  an  internal  hydraulic  pressure  of  the  first hydraulic  pressure   room  and  damp  the  vibration transmitted to the body.
Patent CA-2136259-C (CA)
Inventor: FODOR ANDREAS
IPC: E01B7/02
Filed: 1994-11-21
Granted: 1999-02-02
Abstract: A railroad track switch has tongue rails which pivot relative to fixed stock rails and rolls onto which the tongue rails move when pivoted away from the stock rails.  The rolls are carried at opposite ends in spring supports and each roll is mounted for level adjustments in the respective supports.  Outer ends of the spring supports are themselves mounted for back and forth adjustments towards and away from the stock rails.
Patent CA-2139880-C (CA)
Title: Device for measuring switching force
Inventor: DURCHSCHLAG GERALD
IPC: G01L5/00
Filed: 1994-05-06
Granted: 2000-07-11
Abstract: The device that is used to measure the switching force in railway points (railroad switches) incorporates a measuring bolt that can be inserted into a joint in the point drive. At the unattached end of the measuring bolt there is a head in which an electro-mechanical sensor is arranged. The precise adjustment of the measuring bolt within the joint is effected by using a spacer, which simplifies the removal of the measuring bolt once the measurements have been made.
Patent CA-2140061-C (CA)
Title: Asymmetrical ac trigger simulation
Inventor: GERSHEN BERNARD J
IPC: H05B39/08
Filed: 1995-01-12
Granted: 2004-05-25
Abstract: The present invention teaches a dimmer which incorporates an alternating current (AC) trigger which exhibits asymmetrical electrical characteristics. This eliminates the undesirable snap on hysteresis effect associated with conventional dimmers utilizing symmetrical AC triggers such as discs and silicon bilateral switches (SBS). One embodiment of the present invention utilizes a zener diode to create the asymmetry. During one polarity of the AC source, the breakover voltage of the trigger is increased, forcing the trigger to breakover at a time later in the AC cycle than it would otherwise have with a symmetric trigger. This compensates for charge dumping of the phase control capacitor into the gate of the triac which would otherwise cause the snap on hysteresis effect.
Patent CA-2145237-C (CA)
Title: Dispositif de reduction de la trainee aerodynamique d'une cavite dans un ecoulement et vehicule, notamment ferroviaire, comprenant un tel dispositif
Inventor: HAENTJENS STEPHEN
IPC: B61D17/02
Filed: 1995-03-22
Granted: 2004-10-19
Abstract: La présente invention porte sur un dispositif de réduction de la traînée aérodynamique d'une cavité (1) dans un écoulement (6); caractérisé par une lamelle (7) disposée en amont de la cavité (1), à cheval sur au moins l'une des césures (4, 5) et sur la paroi correspondante (2, 3) du véhicule correspondant (8, 9) et à proximité de ladite paroi (2, 3). L'invention porte également sur un véhicule, notamment ferroviaire, comprenant un tel dispositif.
Patent CA-2153087-C (CA)
Title: Dispositif de pulverisation, notamment d'eau sous forme de micro-gouttelettes, apte a fonctionner dans un milieu non stationnaire
Inventor: CHING GIL
IPC: B05B3/14
Filed: 1995-06-30
Granted: 2006-08-29
Abstract: L'invention est relative à un dispositif de pulvérisation comportant une cuve ouverte à sa partie supérieure, apte à contenir un liquide à pulvériser, tel que de l'eau, en étant remplie jusqu'à son ouverture, un élément piezo-électrique apte à émettre des ondes dans le liquide et des moyens de ventilation pour créer une circulation d'air au voisinage de la surface du liquide. Les ondes sont focalisées au voisinage de l'ouverture de la cuve, et la section transversale de la cuve (1) présente un rétrécissement progressif en direction de l'ouverture (2) de ladite cuve (1).
Patent CA-2156687-C (CA)
Title: Procede et machine pour la pose de manchons d'etiquetage etirables sur des bouteilles ou similaires
Inventor: THEBAULT PHILIPPE
IPC: B65C3/06
Filed: 1995-08-22
Granted: 2006-01-24
Abstract: Procédé pour la pose de manchons d'étiquetage étirables sur des bouteilles ou similaires, suivant lequel on introduit au moins une paire d'étireurs d l'intérieur du manchon, on écarte ces étireurs pour étirer le manchon et on déplace relativement la bouteille et les étireurs pour mettre en place le manchon étiré sur la bouteille, procédé caractérisé en ce que lors du déplacement relatif du manchon étiré (5) et de la bouteille (3) on réalise une aspiration dans la zone du contact du manchon (5) et des étireurs (13) pour maintenir le manchon sur les étireurs lors de sa mise en place sur une bouteille.