baber/WOPTO huggingface dataset:
Patent CA-1293127-C (CA)
Title: Dialysate preparation apparatus
Inventor: SHOULDICE DAVID R
IPC: B01D65/02
Filed: 1987-10-29
Granted: 1991-12-17
Abstract: Abstract of the Disclosure Dialysate preparation apparatus for mixing dialysate concentrate with water, the apparatus including a main flow line having one end for connection to a source of water and another end for providing dialysate to a dialyzer, a concentrate flow line having one end for connection to a source of dialysate concentrate and another end connected to a junction on the main flow line for adding concentrate to water in the main flow line, a volumetric pump having a fixed discharge volume per stroke on the concentrate line, a concentrate sensor on the main flow line downstream of the junction providing control signals to the pump to pump concentrate to achieve the desired concentration, and a controller including a comparator to compare the stroke rate with a limit indicating desired operating stroke rate range.
Patent CA-1312349-C (CA)
Title: Robot apparatus
Inventor: FUSE GENZO
IPC: B25J9/14
Filed: 1987-11-04
Granted: 1993-01-05
Abstract: ABSTRACT OF THE DISCLOSURE A robot apparatus includes a robot comprising a swingable arm, a wrist mechanism mounted on the arm, and a running mechanism for displacing the robot in a prescribed direction.  The wrist mechanism is coupled to an attachment member by means of an actuator comprising a fluid cylinder substantially parallel to the arm.  When a component to e attached to a workpiece is held by a jig mounted on the wrist mechanism, the fluid cylinder is actuated to lift the wrist mechanism in order to correct the jig for the distance it is lowered due to the weight of the component. The wrist mechanism includes a bracket mounted on the arm by a support shaft, the bracket and the support shaft having fluid passages for supplying fluid under pressure to a torque actuator disposed in the bracket.  The running mechanism is disposed in a pit defined in a floor on which the robot apparatus is located.
Patent CA-1315909-C (CA)
Title: Delaying the gelation of water soluble polymers
Inventor: MUMALLAH NAIM A
IPC: C09K8/72
Filed: 1987-12-14
Granted: 1993-04-06
Abstract: Abstract of the Disclosure A process is disclosed for delaying the rate at which water soluble polymers are gelled by an aldehyde and a phenolic compound and for increasing the mechanical strength of these gels which comprises contacting an aqueous solution of said water soluble polymer, aldehyde, phenolic compound, and water with from .004 to about 0.049 wt % of a transition metal  ion.   In addition, novel gelable compositions are disclosed.
Patent CA-1305968-C (CA)
Title: Zwitterionic polysiloxane compositions
Inventor: FENTON WILLIAM N
IPC: C09K23/54
Filed: 1987-12-23
Granted: 1992-08-04
Abstract: ZWITTERIONIC POLYSILOXANE COMPOSITIONS                       ABSTRACT           A zwitterionic composition useful as a surface active agent in aqueous solutions is disclosed.  Said composition is represented by the general formula R'(CH3)2Si-O[SiO(CH3)2]w[SiCH3R-O]xSi(CH3)2R' where w is 0  to 50, x is 1, 2, 3, 4 or 5.  R' denotes a methyl radical or an R radical, x + w is less than or equal to 50, and R denotes a monovalent zwitterionic radical of the general formula - (CH2)yN+(R")2(CH2)zSO3-where y is 1, 2 or 3, z is 3 or 4, and R" denotes an alkyl radical with 1 to 6 carbon atoms.
Patent CA-1300542-C (CA)
Title: Short contact time fluid catalytic cracking process and apparatus
Inventor: HADDAD JAMES H
IPC: C10G11/18
Filed: 1988-01-07
Granted: 1992-05-12
Abstract: SHORT CONTACT TIME FLUID CATALYTIC CRACKING PROCESS AND APPARATUS                       Abstract of the Disclosure A process and apparatus for fluid catalytic cracking (FCC) of a hydrocarbon feed.  The process and apparatus includes a riser which upwardly discharges into a deflector baffle located within a stripping vessel.  The stripping vessel is located within a disengaging vessel.  The deflector baffle is spaced from the riser and the stripping vessel.  Preferably, the deflector baffle is shaped similarly to a large bubble cap.  Catalyst passes downwardly from the baffle into a stripping zone within a lower portion of the stripping vessel.  Hydrocarbons stripped from the catalyst pass upwardly away from the stripping zone, then pass to a cyclone located outside the stipping vessel and then discharge from the disengaging vessel.
Patent CA-1295377-C (CA)
Title: Resistance seam welding machine
Inventor: FREI MATTHIAS
IPC: B23K11/06
Filed: 1988-02-01
Granted: 1992-02-04
Abstract: ABSTRACT OF THE DISCLOSURE:           A resistance seam welding machine is described, particularly for the longitudinal seam welding of can bodies, wherein, in the secondary loop,  feed and return lines are constructed partially as a double line and in all the remaining portion in the form of a substantially coaxial line.  The voltage loss occurring in the secondary loop between welding transformer and welding position and the heat due to energy losses in the machine parts adjacent to the secondary loop are considerably reduced as a result of this construction of the feed return lines.
Patent CA-1317781-C (CA)
Inventor: LEADER MATTHEW J
IPC: G01N21/78
Filed: 1988-02-04
Granted: 1993-05-18
Abstract: Abstract A sensor system for determining the pH or carbon dioxide concentration of a liquid medium comprising, in combination, a pH-insensitive fluorescent indicator and a pH-sensitive fluorescent indicator which act in concert or a single fluorescence indicator which emits fluorescent signals of different wavelengths in different carriers, which system(s) produce diverging signals, the ratio of which provides an accurate and stable determination of the parameter being measured. A method for determing pH and CO2 concentration is also disclosed.
Patent CA-1285137-C (CA)
Title: Sports boot for skiers and the like
Inventor: SISCO HUGH D
IPC: A43B7/14
Filed: 1988-02-10
Granted: 1991-06-25
Abstract: SPORTS BOOT FOR SKIERS AND THE LIKE     ABSTRACT OF THE DISCLOSURE     An improved sports boot (10) is provided for use by snow skiers and the like, wherein the boot includes an improved boot liner (12) interposed between a substantially rigid outer boot shell (16) and the foot and lower leg region of a skier.  The boot liner (12) is defined by flexible sheet material extending about selected anatomical zones of the skier's foot and lower leg region to define a plurality low vertical dimension and partially filled with a metered quantity of substantially uniform sized particulate (42).  The boot liner (12) further includes a plurality of small chambers, with one of said chambers communicating with a main air discharge tube (36).  When the skier's foot and lower leg region are received into the boot shell (16) and boot liner (2), and boot buckles (18) or the like are closed, the particulate filled chambers (30) are pressed against the skier's foot and lower leg region to force air to exhaust substantially from the chambers, thereby causing  the individual chambers to assume a substantially rigid yet comfortable configuration in close conformance with the shape of the skier's foot and lower leg region. As a result, improved mechanical coupling is achieved with respect to the rigid boot shell (16), for a correspondingly improved mechanical coupling with a ski attached to the boot (10).
Patent CA-1302918-C (CA)
Title: Variable speed drive for engine cooling fans
Inventor: CUMMINGS GORDON F III
IPC: F01P7/04
Filed: 1988-02-11
Granted: 1992-06-09
Abstract: VARIABLE SPEED DRIVE FOR ENGINE COOLING FANS            Abstract A variable  speed fan drive  (10)  including a cantilevered support  (18)  and axially spaced bearings (72,74,76) for mounting an input drive member (39) with a cylinder portion (52) and an output fan hub assembly (56) for rotational movement relative to each other and to the support.   A modulatable wet type clutch assembly (96) is operably effective to couple the input drive member (39) to the fan hub assembly (56).  The output speed of the fan hub (58) is regulated by the axial compressive force a clutch engaging member (104) applies against interleaved members (98,100) of the clutch assembly (96). The clutch engaging member cooperates with the cylinder portion  (52)  of the input drive member to define an expansible chamber (108) so designed that all clutch clamping forces are confined within the drive member (39).   As such, substantially no axial thrust load is exerted on the axially spaced bearings (72,74,76) during clutch application.   The drive unit may further include cooperative elements (176,178) arranged on the drive member (39) and the fan hub assembly (56) for preventing belt cord debris from becoming entangled thereabout.
Patent CA-1299188-C (CA)
Title: Diarylnitrones
Inventor: GRIFFING BRUCE F
IPC: C07C291/02
Filed: 1988-03-10
Granted: 1992-04-21
Abstract: DIARYLNITRONES     Abstract of the Disclosure Diarylnitrones having the following formula are useful for near UV photolithography:                         where X is an electrom withdrawing group in the para position selected from the class consisting of -?-OR7  , -?-R7     , -?N(R7)2   , -CN    , halogen, and R7 is a C(1-8) alkyl radical.
Patent CA-1288674-C (CA)
Title: Pneumatic tire envelope including wires each made of stacked elbow shaped bands
Inventor: CHARVET JEAN-LOUIS
IPC: B60C15/04
Filed: 1988-03-11
Granted: 1991-09-10
Abstract: A pneumatic tire has beads each of which is reinforced by a bead ring formed of a stack of ribbons of curved shape. The bead ring is characterized by the following features when the tire is mounted on its rim: (a) the concavity of the ribbons faces the axis of rotation of the tire; (b) a straight line connecting the ends of any ribbon forms with the axis of rotation of the tire an acute angle  alpha such that  alpha >/= beta +5 if  beta  is positive and  alpha >/=5 if beta  is negative,  beta  being the angle of the bead seat of the rim,  alpha  and  beta  being expressed in degrees.
Patent CA-1293800-C (CA)
Title: Rapid signal acquisition and phase averaged horizontal timing from composite sync
Inventor: BOYCE RORY W
IPC: H04N5/073
Filed: 1988-03-30
Granted: 1991-12-31
Abstract: Abstract of the Disclosure A circuit for extracting phase averaged horizontal timing with high noise immunity and for rapidly acquiring a video signal from a composite synchronizing signal generates an output signal at the horizontal sync rate, the output signal having leading edges occurring at the leading edges of the horizontal sync pulses of the composite synchronizing signal. The rate of the output signal is phase averaged by comparing the respective leading edges of the output signal and the composite synchronizing signal within a window centered about the leading edges of the output signal.  Differences in the phases of the respective leading edges result in an error signal which is used to adjust the rate of the output signal to obtain coincidence of the respective leading edges.  The occurrence of the leading edges of the composite synchronizing signal within the window is used to lock the circuit.  Failure of the leading edges of the composite synchronizing signal to occur within the window due to a change in video source results in unlocking the circuit and resetting the output signal to a new composite synchronizing signal.
Patent CA-1313146-C (CA)
Title: Sorbing apparatus
Inventor: WHITE DONALD H JR
IPC: B01D53/04
Filed: 1988-04-12
Granted: 1993-01-26
Abstract: Abstract:    The disclosure describes a sorbing apparatus comprising at least one chamber having first and second ports and defining a fluid flow path between the first and second ports.  The chamber includes a bed of sorbent particles which are disposed in the fluid flow path and the sorbent bed includes parti-cles of clinoptilolite.  The sorbing apparatus fur-ther comprises fluid control means for alternately directing fluid containing the substance through the bed of sorbent particles, whereby the bed of sorbent particles sorbs at least a portion of the substance from the fluid, and directing a purging fluid through the bed of sorbent particles, whereby the bed of sorbent particles is regenerated.
Patent CA-1305120-C (CA)
Title: Adsorptive material for and process for the removal of chlorophyll, color bodies and phospholipids from glyceride oils
Inventor: PRYOR JAMES N
IPC: B01J20/10
Filed: 1988-05-13
Granted: 1992-07-14
Abstract: ABSTRACT OF THE DISCLOSURE    Phospholipids and/or chlorophyll and other color bodies are removed from glyderide oil by contacting the oil with an acid-treated amorphous silica adsorbent comprising a high surface area amorphous silica on which is supported an acid having a pKa of about 3.5 or lower.
Patent CA-1305458-C (CA)
Inventor: FINI CARLO
IPC: A41D25/00
Filed: 1988-09-09
Granted: 1992-07-21
Abstract: ABSTRACT     The invention provides a method for manufacturing ties consisting of interwoven tapes           . According to this method,  the single tie portions                are cut out from a piece     of fabric     of interwoven warp and weft tapes           . This piece of fabric      may be bonded, for example, by means of a hot-melt adhesive, to a base web made of a woven or not woven fabric or of a plastics material foil. Anyway, before or after the tie portions having been cut out,  the  said  tie  portions  are peripherally provided with selvedge seams     at least along the tie portions cutting lines   .
Patent CA-1284816-C (CA)
Title: Method of and arrangement for controlling an h-bridge electric motor
Inventor: NOVIS ARI M
IPC: H02P7/00
Filed: 1988-09-13
Granted: 1991-06-11
Abstract: Method of and Arrangement for Controlling an H-Bridge Electric Motor Abstract A method of and an arrangement for controlling the operation of a reversible D.C. electric motor including a winding having two ends each of which is connected to both the positive and negative terminals of an electric current source through respective control switches that can be selectively closed and opened in response to command signals to apply voltage differentials across the winding with attendant electric current flow through the winding in one or the opposite direction for operating the electric motor in one or the other of its senses of rotation with intervening rotation sense reversals utilize the original command signals for deter-mining when the sense of rotation reversal would result in an excessive electric current flow through the winding.  In such a case, the original command signals are temporarily replaced by substi-tute command signals of such a character that both of the winding ends are connected through the respective control switches to only one of the electric current source terminals with attendant dynamic braking of the electric motor.
Patent CA-1303512-C (CA)
Title: Lait auto-bronzant avec precurseur de melanine
Inventor: ROBERT PIERRE
IPC: A61K8/72
Filed: 1988-10-21
Granted: 1992-06-16
Abstract: L'invention a pour objet une crème solaire auto-bron-zante se présentant de préférence sous la forme d'un lait et contenant, en combinaison, un filtre de protection contre les rayons UVB, un agent auto-bronzant et un précurseur de mélanine pour accélérer le bronzage naturel. La personne utilisant cette crème obtient une coloration immédiate de la peau et se trouve protégée contre les coups de soleil. Elle bénéficie en outre d'une accélération de son processus de b r o n z a g e naturel. Le filtre de protection contre les rayons UVB est l'octyl diméthyl PABA, l'agent de bronzage est la dihydroxyacétone et le précurseur de mélanine est de préférence le tyrosinate de glucose.
Patent CA-1317073-C (CA)
Title: Hydrotherapy apparatus
Inventor: WILLIAMS FARRELL D
IPC: A61H23/00
Filed: 1988-11-25
Granted: 1993-05-04
Abstract: HYDROTHERAPY APPARATUS Abstract of the Disclosure A hydrotherapy apparatus incorporating a water wheel coupled  to  a  reduction  gear  assembly  for  providing  a strong  jet  of  water  at  an  extremely  uniform rate  of rotation, even at slow notational speeds.  The water wheel has a relatively small diameter 80 that it may be driven at a high rate of speed to minimize any rotational speed variations of the water wheel itself.  The water wheel is non-rigidly coupled to the drive shaft of the nozzle by a helical gear which causes the drive shaft to rotate at a slower rate than that of the water wheel.
Patent CA-1328975-C (CA)
Inventor: LARSSON SVEN-GOERAN
IPC: E01F9/011
Filed: 1989-02-10
Granted: 1994-05-03
Abstract: Abstract of the disclosure A device for anchoring in the ground comprises two parts (1,  2)  relatively  movable  in  axial  direction  and  a transversally expansible arrangement  (4)  adapted to be actuated for expansion upon relative movement between the parts for the purpose of anchoring  the device in the ground.            (Fig 6).
Patent CA-1327222-C (CA)
Inventor: CURLEY CHARLES M
IPC: H01H13/705
Filed: 1989-02-10
Granted: 1994-02-22
Abstract: ABSTRACT  A keybutton guide assembly for a full sized keyboard with full  travel  keybuttons has  a  structure  including a keybutton having a spring actuator engaging a spring finger at a location spaced away from a keybutton stem.   This structure causes the keybutton stem to be guided only at an upper end of a stem guide boss for controlling the movement of a keybutton between rest and depressed positions with minimum rubbing friction.
Patent CA-1333120-C (CA)
Inventor: BOOTH DAVID L
IPC: C08G59/02
Filed: 1989-02-24
Granted: 1994-11-15
Abstract: An  improved  process  for  reacting  a  mercaptan-terminated  aliphatic  polysulfide  resin  with  excess epichlorohydrin in the presence of alkali to form an epoxidized  polysulfide  is  disclosed.   The  reaction takes place in the absence of a solvent such as ethyl alcohol  or  ether,  which  will  form  an  inseparable azeotrope with epichlorohydrin and water. The reaction is carried out at a temperature and pressure sufficient to distill away epichlorohydrin and by-product water. The water and epichlorohydrin are separated and the epichlorohydrin  is  returned  to  the  pot  during  the reaction.  After the reaction is complete, the epichlo-rohydrin is stripped,  leaving an epoxidized polysul-fide, by-product sodium chloride, and residual alkali. The epoxidized polysulfide is dissolved in a work-up solvent  and  filtered  to  remove  sodium  chloride  and alkali.  Then the work-up solvent is stripped, leaving a purified product.
Patent CA-1317028-C (CA)
Title: Self-timing analog-to-digital converting system
Inventor: LEWYN LANNY L
IPC: H03K3/356
Filed: 1989-04-24
Granted: 1993-04-27
Abstract: SELF-TIMING ANALOG-TO-DIGITAL CONVERTING SYSTEM                   Abstract of the Disclosure A substantially constant current is divided between two lines in accordance with the relative values of an input voltage and a reference voltage respectively introduced to such lines.  The currents through the first and second lines respectively charge first and second capacitances.  The charges in the first and second capacitances respectively control the magnitudes of the currents flowing through first and second control members to charge the first and second capacitances.          The control members are interconnected so that any difference between the  flow of current through the control members and the associated capacitances becomes magnified.  When the charge in an individual one of the capacitances reaches a particular value, a signal on an output terminal associated with the other capacitance changes from the first magnitude to a second magnitude.  During this time, the signal associated with the first capacitance remains at substantially the first magnitude.          A plurality of stages, including the comparators discussed above, compare the input voltage with progressive values of the reference voltage.  Such stages are connected to successive pairs of comparators to indicate, on the basis of the relative magnitudes of the voltages on the output terminals of such comparators, whether the reference voltage is greater than the input voltage for both comparators in such pairs.  An output signal is produced by the plurality only when one pair of comparators provides an output indicating that the input voltage is between the reference voltages connected to that pair of comparators.                                * * * * * * * * *
Patent CA-1330487-C (CA)
Inventor: FARREN NICHOLAS E
IPC: G09F7/10
Filed: 1989-04-25
Granted: 1994-07-05
Abstract: Abstract Information Display Device A device for displaying information, the device comprising a transparent faced display board for the fixture to a surface the board having carrier means (3) intermediate the transparent face (5) and the surface for carrying a rigid information element (4) and an aperture (15) for inserting the element into the carrier means. The aperture is provided with a baffle, (10), for example comprising resiliently biased elements, allowing entry of flexible information element.
Patent CA-1330729-C (CA)
Inventor: OKADA HIROSHI
IPC: G02B6/38
Filed: 1989-04-27
Granted: 1994-07-19
Abstract: LIGHT ATTENUATOR AND PROCESS FOR      FABRICATION THEREOF        ABSTRACT OF THE DISCLOSURE      Disclosed is a light attenuator comprising a stick or rod composed of a light-transmitting material, and a light-attenuating layer composed of a thermoplastic resin and formed on at least one end face of the stick or rod, wherein finely divided particles having a light-absorbing or light-scattering property are uniformly incorporated in the thermoplastic resin.  This light attenuator is made by forming a light-attenuating thermoplastic resin layer having incorporated therein the light-absorbing or light scattering finely divided particles on a release film or paper; placing the light-attenuating layer formed on the release film of paper on a heating plate; press-bonding the end face of a rod or stick composed of a light-transmitting material inserted and set in a ferrule to the surface of the release film or paper; cooling the bonded assembly; and then peeling the release film or paper to transfer the light-attenuating layer to the end face of the light-transmitting rod or stick.
Patent CA-1327926-C (CA)
Inventor: BORSANYI ALEXANDER S
IPC: A61M5/142
Filed: 1989-05-16
Granted: 1994-03-22
Abstract: IMPLANTABLE PATIENT-ACTIVATED    FLUID DELIVERY DEVICE   Abstract of the Disclosure An implantable fluid delivery device for dispensing metered aliquots of liquid medication upon finger-pressure activation of the device by a patient.  The device includes a soft, deformable needle-piercable casing having a fluid reservoir in which is located a relatively-rigid, apertured support plate that divides the reservoir into upper and lower chambers.  A compressible, positive displacement pump chamber or housing is mounted upon the plate within the upper chamber and includes passages communicating with both the lower chamber and an outlet port.  Force applied to a central target zone of the top wall causes compression of the pump housing and delivery through the outlet port of an amount of fluid equal to the displacement of the pump housing.  The same target zone of the top wall serves as a self-sealing injection site for replenishing the fluid supply of the reservoir.  A rigid, protective needle guard is disposed within the upper chamber above the pump housing to shield that housing against contact by an injection needle when the fluid supply is being replenished.  The rigid plate that supports the pump housing also distributes applied pumping forces and provides a platform for supporting other elements of the device, including a fluid filter and surge protector located in the lower chamber of the reservoir at the inlet to the pump housing.