baber/WOPTO huggingface dataset:
Patent CA-1078053-A (CA)
Inventor: KATO YASUO
IPC: G02F1/05
Filed: 1977-03-21
Granted: 1980-05-20
Abstract: ELECTRO-OPTICAL LIGHT SHUTTER DEVICE     ABSTRACT OF THE DISCLOSURE          In an electro-optical light shutter device using a solid-solution ceramic material for alternate transmission and interception of light, a first voltage is applied to the solid-solution ceramic material in the operating (open) position of the shutter, and a second voltage of polarity opposite to that of the first voltage and having an absolute value smaller than that of the first voltage is applied to the solid-solution ceramic material in the non-operating (closed) position of the shutter.  The solid-solution ceramic material has a composition in which a ferroelectric phase and a non-ferroelectric phase adjoin each other through a morphotropic phase boundary.
Patent CA-1095525-A (CA)
Inventor: KREIGHBAUM WILLIAM E
IPC: C07D209/18
Filed: 1977-04-22
Granted: 1981-02-10
Abstract: Abstract of the Disclosure Preparation of cyanomethylphenethanolamines useful as adrenergic stimulants is described.  Preferred compounds such as 2-hydroxy-5-[1-hydroxy-2-[(1,1-dimethyl-2-phenylethyl)amino]ethyl]-benzeneacetonitrile are selective beta-adrenergic stimulants having relatively greater potency on respiratory smooth muscle than on cardiac muscle.  Such compounds are particularly valuable in the treatment of bronchial conditions.
Patent CA-1057181-A (CA)
Inventor: MCSHERRY THOMAS W
IPC: E04F13/21
Filed: 1977-05-16
Granted: 1979-06-26
Abstract: ANCHOR ASSEMBLY FOR FASTENER ABSTRACT OF THE INVENTION    An anchor assembly for retaining an elongated fas-tener member within an opening defined by a wall portion of finite thickness and having at least one concealed side.  The assembly has at least two elongated leg members of flexible material positioned in parallel relation to each other, with means connecting a pair of adjacent end portions of the leg members together.  A generally elongated anchor member is positioned transversely of the leg members and attached to the opposite end portions thereof, the anchor member defining an opening generally medial of the leg members and capable of receiving an elongated fastener member for attachment there-with when the fastener member is positioned between the leg members.  Means to connect an end portion of each leg member to the anchor member is provided for each leg member and the leg members and the anchor member connecting means including resilient means associated therewith to bias the anchor mem-ber toward its transverse position relative to the leg members against forces tending to rotate the anchor member toward a generally parallel orientation with the leg members, and con-trol of the orientation and position of the anchor member behind the concealed surface of the wall is thereby facili-tated by the application of forces either directly or indirect-ly to the leg members.
Patent CA-1074293-A (CA)
Inventor: SLOAN PAUL H JR
IPC: F01P11/02
Filed: 1977-07-06
Granted: 1980-03-25
Abstract: Abstract of the Disclosure A cap for closing an upwardly facing, neckless open-ing in a vehicle radiator comprises a shell defining a chamber within the cap.  The shell includes an outer end disposed with-out the radiator when the cap is closing the opening and an inner end disposed within the radiator when the cap is closing the opening.  A first venting passageway in the outer end of the shell connects the chamber to atmosphere, and a second venting passageway in the inner end of the shell connects the chamber to the radiator interior.  An outwardly facing valve seat is disposed within the chamber and a pressure-vacuum valve is urged against the seat by a spring, the valve and spring being housed within the chamber.  The seat is provided by an integral annular portion of the shell which extends periph-erally and radially inwardly from an interior wall of the shell.  A plurality of ears for engaging the radiator opening are disposed about the outer periphery of the shell and project radially outwardly therefrom.  The projecting ears can be dis-posed adjacent the inner end of the shell, or can be disposed intermediate the inner and outer ends of the shell.  The shell desirably is formed of molded plastic and is molded in two pieces.  An outer piece includes the shell outer end and a portion of the shell side wall.  An inner piece includes the shell inner end, a portion of the side wall, the engaging ears and the pressure-vacuum valve seat.  The valve member and spring are placed between the two pieces which are then joined to assemble the cap.
Patent CA-1075547-A (CA)
Inventor: NAKANO SOICHI
IPC: F02P5/10
Filed: 1977-07-20
Granted: 1980-04-15
Abstract: Abstract of the Disclosure An ignition timing control system for an internal combustion engine has a first vacuum passage connected to the engine intake passage downstream from the throttle valve and a second throttled vacuum passage connected to the engine intake passage slightly upstream from the throttle valve in closed position, both vacuum passages being connected to the angle advance chamber of the ignition timing device of the engine.  A solenoid valve is placed in the first vacuum passage and a delay valve is placed in the second vacuum passage. An electrical circuit for energizing the solenoid valve includes an electrical switch which closes when the engine temperature is low, so that the ignition timing of the engine may be advanced when the engine temperature is low.
Patent CA-1091269-A (CA)
Inventor: STAATS HENRY N
IPC: B42D15/10
Filed: 1977-08-15
Granted: 1980-12-09
Abstract: ABSTRACT         An identification card pouch is disclosed for use with a paper stock card having a photograph positioned thereon. The pouch has front and back covering leaves which are placed against the front and back surfaces of the identification card. A heat reactivatible adhesive is coated on the inside surfaces of the front and back leaves to permit lamination of the covering leaves to the identification card.  A bond promoting patterned layer is arranged on the heat reactivatible adhesive on the front leaf to form treated and untreated areas. The treated areas adhere to the photograph while the untreated areas adhere to the paper card stock.
Patent CA-1088460-A (CA)
Inventor: CRISSMAN JAMES H
IPC: B03C5/02
Filed: 1977-08-19
Granted: 1980-10-28
Abstract: RADIAL FLOW ELECTROSTATIC FILTER    Abstract of the Disclosure A filter for separating finely divided solid particles that may be electrically conducting from electrically nonconducting liquids has means for directing the liquid to be filtered in a radial flow pattern through a filter bed of glass beads to which a high-voltage gradient is applied.  A central tubular electrode that serves as a conduit for the liquid extends longitudinally through the filter bed within a concentric cylindrical outer electrode spaced between the central electrode and the casing wall of the filter.  After filtering until the electrical current through the filter bed exceeds a predetermined maximum, the voltage gradient is discontinued and the filter backflushed by flowing liquid upwardly through the filter at a rate that expands the filter and causes movement of the beads relative to one another and to the cylindrical outer electrode to remove deposited solids from the beads and from the electrode.          The radial flow pattern allows a greatly increased flow rate as compared to longitudinal flow with a highly efficient separation of the solid particles.
Patent CA-1086462-A (CA)
Inventor: BJOERKMAN LEIF A B
IPC: B29L30/00
Filed: 1977-09-27
Granted: 1980-09-30
Abstract: ABSTRACT OF THE DISCLOSURE      A process and a rubber-base bonding material in the form of a preformed strip for retreading vehicle tires using a pre-vulcanized tread and microwave heating for vulcanizing and binding the bonding strip to the tire carcass and to the tread is disclosed, wherein a bonding strip is used whose dielectric loss factor at the vulcanizing (retreading) temperature is higher than the loss factor of the prevulcanized tread, so that the microwave heat applied will be concentrated to the bonding strip and vulcanize the same providing satisfactory adhesion between carcass and tread without the already prevulcanized tread being destroyed or significantly reduced in quality due to the effect of the excess heat.
Patent CA-1107185-A (CA)
Inventor: VISSER BEREND L
IPC: B32B27/32
Filed: 1977-10-26
Granted: 1981-08-18
Abstract: ABSTRACT OF THE DISCLOSURE            A packaging material suitable for bulk and liquid consumer products consisting of a bonded laminate of two plastic foils with a stiffer material foil, such as a metal foil, in which two orientated polyolefin foils are joined together one with the other in such a way that the respective orientation directions form an angle with each other and that the bond between one of these two foils and the stiffer material foil is considerably stronger than the bond between the two first mentioned foils.
Patent CA-1095093-A (CA)
Inventor: LAVON ERIK V
IPC: E21C37/22
Filed: 1977-11-22
Granted: 1981-02-03
Abstract: Abstract of the Disclosure A hard compact material, such as rock, is broken by driving a longish mass body of relatively incompressible fluid, such as water, against the material to be broken.  The mass body is caused to impact the material at a momentum required for breaking the material.  The required momentum is obtained by adding the momentum of at least two fluid mass bodies.  The longish mass body can be aligned with a drill hole by means of the drill bit and rod.  The energy generator or fluid gun and the gun barrel can be made in separable units.
Patent CA-1073729-A (CA)
Inventor: VAN DER LELY CORNELIS
IPC: A01B33/06
Filed: 1977-12-14
Granted: 1980-03-18
Abstract: Abstract A soil cultivating implment or machine is disclosed of the kind which comprise a frame supporting a row of soil working members that are oscillatable.  A drive transmission to the soil working members is arranged wholly or principally inside a hollow portion of the frame.
Patent CA-1120044-A (CA)
Title: Phenylcarbamoyl-pyrazolines and their  use as insecticides
Inventor: SIRRENBERG WILHELM
IPC: C07D231/06
Filed: 1978-01-04
Granted: 1982-03-16
Abstract: Abstract The present invention provides, as new compounds, phenylcarbamoyl-pyrazolines of the general formula        (I) in which R  represents halogen, R1 represents hydrogen or alkyl, R2 represents hydrogen or halogen and R3 represents halogenoalkyl.     They are prepared by reacting a 3-halogenophenyl-2-pyrazoline with a phenyl isocyanate. They exhibit a good insecticidal action.     Le A 17 708
Patent CA-1089540-A (CA)
Inventor: GHEEWALA TUSHAR R
IPC: H03K17/92
Filed: 1978-01-18
Granted: 1980-11-11
Abstract: TWO-PORT CURRENT INJECTION INTERFEROMETER AMPLIFIERS  AND LOGIC CIRCUITS                     Abstract of the Disclosure Josephson junction interferometers having nonlinear switching or threshold characteristics are disclosed.  The nonlinear threshold characteristic is achieved in a preferred manner by applying an injection current to the interferometer at a point on the interferometer which is different from where its gate current is normally applied.  The resulting nonlinearity provides for high amplification.  The nonlinear switching characteristic may also be achieved by applying an injection current to the same point on the interferometer where_the gate current is normally applied.  However, a portion of the thus-applied injection current is electromagnetically coupled to the interferometer inductance to achieve the desired nonlinear switching characteristic.  Parameters such as the injection current, the gate current, physical point of application of the injection current to the interferometer, junction currents and the inductance of the interferometer may be changed to tailor the threshold characteristic to provide a desired nonlinearity.  Logic circuits such as AND, OR and INHIBIT circuits in addition to the basic amplifier circuit are also disclosed.
Patent CA-1092108-A (CA)
Inventor: MULLER JEAN-CLAUDE
IPC: A61K31/505
Filed: 1978-01-23
Granted: 1980-12-23
Abstract: Abstract Oxadiazolopyrimidine derivatives of the general formula            I        , wherein R represents an alkyl or alkoxyalkyl group, and salts thereof as well as a process for manufacturing same are described. These oxadiazolopyrimidine derivatives have a useful vasodilating and/or blood pressure lowering activity.
Patent CA-1083388-A (CA)
Inventor: BULLIVANT KENNETH W
IPC: B65G23/44
Filed: 1978-01-26
Granted: 1980-08-12
Abstract: CONSTANT BELT TENSIONER     Abstract of the Disclosure Apparatus is provided for applying a constant tension to a belt extending around first and second rollers by way of a parallelogram linkage connected to said second roller for moving said second roller to tension said belt. A lever arm is connected to the linkage and Includes a weight adjustable along the lever arm.
Patent CA-1096897-A (CA)
Inventor: LAABS JOHANNES
IPC: E21C27/02
Filed: 1978-01-31
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE   A mineral winning machine which operates in conjunction with a longwall conveyor has a cutting drum or the like mounted at the end of a beam which is raisable and lowerable. The beam is supported on a body so that the beam support can be transposed about a vertical axis arranged at the centre of the body,  The body is in turn supported for movement and the cutting drum can be alternately disposed at one or other end of the body to win mineral in both directions of travel.          Conveyors are arranged at the ends of the body and extend transversely of the body to transfer mineral to the longwall conveyor.
Patent CA-1088901-A (CA)
Inventor: MITCHELL ROBERT W D
IPC: B41F17/34
Filed: 1978-02-01
Granted: 1980-11-04
Abstract: METHOD OF MANUFACTURING KEYBOARD BUTTONS                     Abstract The invention provides a photo-projection and develop-ment technique which is suitable for computer controlled mass production of low cost keyboard buttons with coloured characters.    The process comprises assembling blank keyboard but-tons with the surface on which a character is to be de-posited in a predetermined orientation.  Then, after cleaning, the character surface is coated with a layer of radiation sensitive material.  Finally the layer is exposed to provide a latent image of a desired charac-ter, developed to give the character a permanent image, and lastly coated with a protective layer.
Patent CA-1088855-A (CA)
Inventor: BROWN JACK E JR
IPC: B60C9/26
Filed: 1978-02-21
Granted: 1980-11-04
Abstract: A TIRE WITH A FOLDED ANNULAR REINFORCEMENT                Abstract of the Disclosure A pneumatic tire with an annular reinforcement in the area of the tread.  The annular reinforcement is formed of a single, wide, cord-reinforced ply which is folded so as to have three folded edges and four super-imposed, narrower, interconnected layers or plies of rubberized reinforcement cords.
Patent CA-1084001-A (CA)
Inventor: BROWN DAVID L
IPC: B04C5/28
Filed: 1978-02-27
Granted: 1980-08-19
Abstract: IMPROVEMENTS IN CENTRIFUGAL CLEANER APPARATUS    AND CANISTER TYPE ARRANGEMENTS THEREOF     ABSTRACT OF THE DISCLOSURE:    A cleaner package for receiving materials a constituent or constituents of which are to be separated and/or cleaned includes means defining an inlet chamber and an outlet chamber which are axially spaced and have at least one centrifugal cleaner unit interposed therebetween.  The opposite ends of the cleaner unit respectively define a first passage for inflow of said materials thereto and a second passage for outflow of a portion of said materials therefrom.  The inflow passage is exposed to said inlet chamber while the outflow passage is arranged to dis-charge to the outlet chamber.  The initial portion of said inflow passage, including its inlet, is directed in a sub-stantially straight line path, the sense of which is sub-stantially the same as that of the central longitudinal axis of the cleaner.  The construction provided enables an easy slip fit mount of the cleaner unit.    In its preferred construction the cleaner unit features a separable head embodying an inflow passage having a con-figuration enabling the cleaner of which it forms a part to function in a manner to provide increased throughput and a cleaning quality equivalent to that of a conventional side inlet cleaner, but with a lower pressure drop.  Where its pressure drop is made equivalent to that of a conventional side inlet cleaner it provides improved dirt removal.
Patent CA-1083643-A (CA)
Title: Commutateur pour lampe de poche
Inventor: ROUSSEAU JEAN-PIERRE
IPC: H01H23/14
Filed: 1978-04-04
Granted: 1980-08-12
Abstract: Lampe de poche comprenant un boîtier une encoche oblongue ménagée à travers le boîtier, une ampoule électrique dans le boîtier, ayant une partie terminale de plus faible diamètre dont l'extrémité est entourée d'un épaulement, se prolonge dans l'encoche depuis l'intérieur du boîtier et est exposée pour action manuelle à l'extérieur du boîtier. L'épaulement s'appuie sur le boîtier de chaque côté de 1'encoche de façon à maintenir l'ampoule dans le boîtier.  La base de l'ampoule est constituée d'un plot central de contact et d'une douille périphérique et conductrice.  Il existe dans le boîtier un logement sensiblement parallélépipédique de façon à guider l'ampoule entre une première et une seconde position, une pile, une borne conductrice en appui contre le plot central de l'ampoule et reliant cette dernière à une première borne de la pile.  La première borne de la pile est rappelée élastiquement en direction du plot central de l'ampoule.  On retrouve un élément conducteur dans une première paroi du bottier avec lequel l'ampoule vient en contact lorsque cette dernière est en première position, cet ?lément conducteur permettant aussi de relier la douille périphérique conductrice à une seconde borne de la pile et des moyens prévus dans la paroi opposée du boîtier pour isoler l'ampoule de la seconde borne lorsque l'ampoule est dans la seconde position.  L'encoche, le logement parallélépipédique, la borne conductrice et les moyens de rappel élastique sont agencés pour disposer l'ampoule en équilibre stable entre la première et la seconde position, le passage d'une position a l'autre étant provoqué par une action manuelle en agissant sur la partie de plus faible diamètre dépassant de l'encoche, de sorte que l'ampoule soit maintenue en position provoquée par action manuelle et agisse comme commutateur de la lampe de poche.
Patent CA-1138153-A (CA)
Inventor: SPECTOR MYRON
IPC: A61F2/30
Filed: 1978-04-07
Granted: 1982-12-28
Abstract: ABSTRACT OF THE INVENTION     Prosthetic devices, such as orthopedic, dental and maxillofacial prostheses, are provided which are composed of an inner load bearing, functional component ant an outer foamed or sintered porous coating of selected bioengineering thermoplastics.  The bioengineering thermoplastic coating is provided in regions where long-term bone fixation is de-sired by tissue ingrowth.   The coatings offer substantial biomechanical advantages over any material system previously reported.   Also provided, are anatomically shaped devices comprised totally of bioengineering thermoplastics with select porous areas; these devices include bone gap bridges, bone caps, and alveolar ridge augmentation implants.
Patent CA-1117218-A (CA)
Inventor: FUNK DAVID B
IPC: G01N27/22
Filed: 1978-04-10
Granted: 1982-01-26
Abstract: Abstract of the Disclosure An analysis instrument for measuring selected constituents present in a sample of a material such as a bulk commodity includes a test cell to receive the sample.          The test cell comprises a capacitor whose electrical pro-perties are modified in accordance with the dielectric constant of the sample, which dielectric constant is a function of the contents of the sample.  Weight and tem-perature sensors are provided for producing signals corresponding to the weight and temperature of the sample in the test cell.  An electronic measuring circuit is connected to a test circuit including the test cell capa-citor and to the weight and temperature sensors for pro-ducing an indication of the contents of the sample.  The measuring circuit produces the indication by correcting a measurement taken across the test cell in accordance with the variation in the temperature of the sample from a reference temperature and the variation in the bulk density of the sample from a reference bulk density.  Control circuits are provided for controlling the overall operation of the analysis instrument in accordance with predeter-mined instructions stored therein and with operator in-structions from a control panel.
Patent CA-1133625-A (CA)
Title: Devices using ultrasounds for forming images, in  particular for the internal examination of the  human body
Inventor: BRIDOUX EDOUARD
IPC: G10K11/32
Filed: 1978-04-28
Granted: 1982-10-12
Abstract: IN THE CANADIAN PATENT OFFICE                   PATENT APPLICATION ENTITLED        IMPROVEMENTS IN DEVICES USING ULTRASOUNDS FOR FORMING      IMAGES, IN PARTICULAR FOR THE INTERNAL EXAMINATION OF      THE HUMAN BODY.   in the name of AGENCE NATIONALE DE VALORISATION DE LA      RECHERCHE  ( A N V A R ) ABSTRACT OF THE DISCLOSURE            The invention relates to a probe for a device forming images from ultrasounds, in particular for the internal examination of the human body. The probe comprises trans-ducers distributed in a curved array providing the pos-sibility of a sectorial angular scanning and of generating ultrasonic beams converging towards a localized area where is arranged either a screen opaque to ultrasounds and formed with one or two openings in the vicinity of the center of converging area, with one or two lenses for ultrasounds in said opening or openings, either one or two electronic lenses formed with means for converting in parallel ultra-sounds into electric signals, means for differentially de-laying the electric signals and means for converting in pa-rallel the electric signals, after a delay, into ultrasounds.
Patent CA-1124403-A (CA)
Inventor: HOFFMANN KURT
IPC: G11C19/28
Filed: 1978-05-09
Granted: 1982-05-25
Abstract: Abstract of the Disclosure A digital CCD arrangement is provided in which an output signal is emitted which is regenerated with respect to its voltage range, and is substantially insensitive to adverse influences.  In this arrangement, the last shift electrode preceding the output end zone is coupled with respect to potential to a circuit point of a transistor stage, which point in the event of a quantity of charge carriers representing logic level "l", the output end zone experience a change in potential which corresponds to the change in potential beneath the other shift electrodes.  Between the last preceding shift electrode and the output end zone, there is arranged a further electrode which is insulated from the semiconductor layer and is connected to a second reference potential which corresponds to an intermediate value which is swept over by the potential across the circuit point.