baber/WOPTO huggingface dataset:
Patent CA-1176763-A (CA)
Inventor: YOUNG MIRIAM F
IPC: H01L23/485
Filed: 1981-10-19
Granted: 1984-10-23
Abstract: ABSTRACT     An improved method of providing a semiconductor device having a semiconductor substrate containing solid state signal processing circuitry.  The solid state signal processing circuitry comprises doped regions of predetermined resistivity within the semiconductor sub-strate.  A passivation layer covers a surface of the semi-conductor substrate with electrical contacts to the solid state signal processing circuitry exposed through the passivation layer.  The improvement comprises forming, on the electrical contacts, contact pads which have an upper surface devoid of a depressed center region.  After the forming step, an adhering insulator material is deposited over the passivation layer, and a semiconductor wafer is mounted onto the substrate above the contact pads to form an assembly.  The mounting process comprises applying pressure to the assembly and heating the assembly so that, prior to curing, adhering insulator material is squeezed out between the contact pads and a minimum thickness of adhering insula-tor material remains between the substrate and the wafer.          The adhering insulator material is then allowed to cure.          Portions of the wafer and adhering insulator material are then removed to expose the upper surface of predetermined contact pads.  Predetermined regions of the remaining semi-conductor wafer are then electrically interconnected with predetermined contact pads.     ,
Patent CA-1173762-A (CA)
Inventor: MEURER C LONNIE
IPC: B01D21/20
Filed: 1981-10-21
Granted: 1984-09-04
Abstract: Abstract A sediment collecting device is provided which includes a collection body positioned adjacent the floor of a liquid-containing vessel.  The collection body moves across the vessel floor along a fixed track in a stepping manner.  A suction pipe or, alternatively, a scraping mechanism is integrally joined to the collection body for collecting sediment as the collection body is driven.  The collection body is capable of reciproacting movement along the track and includes first, second and third body members.  When the collection body is driven by means of pressurized fluid applied in a predetermined manner to cylinders fastened to the second body member, at least one body member is moved relative to at least another one of the remaining two body members.
Patent CA-1166631-A (CA)
Inventor: KAEDING JEANNE E
IPC: G03G9/12
Filed: 1981-12-04
Granted: 1984-05-01
Abstract: ABSTRACT OF THE DISCLOSURE           Novel 1,4-bis aryl-azo derivatives of 2,3-naphthalenediol in which the aryl groups are substituted with alkoxy and with sulfonamide or fluorosulfonyl groups.  These compounds are useful as neutral density pigments in electrophotographic developers and have good light stability.
Patent CA-1204243-A (CA)
Inventor: HARREUS ALBRECHT
IPC: C08K9/06
Filed: 1982-01-15
Granted: 1986-05-06
Abstract: Abstract of the disclosure:         A pulverulent polymer composition which is readily pourable, has a low tendency to form dust and has good stability on storage is composed of a mixture of a vinyl ester polymer and a small proportion of a hyarophobic silica.     The composition  is prepared by spray drying an aqueous vinyl ester polymer dispersion in the presence of a hydrophobic silica.     The silica is preferably a product from the reaction of a hydrophilic silica with an organochlorosilane.     The composition can be redis-persed in water and the films produced from such disper-sions are transparent; they are suitable for the produc-tion of paints, glues and adhesives.
Patent CA-1186272-A (CA)
Inventor: STOG WILHELM
IPC: C10B25/06
Filed: 1982-02-16
Granted: 1985-04-30
Abstract: ABSTRACT The quality of coke, and the yield and quality of the gases, are sub-stantially improved if the necessary coking heat is supplied simultaneously from both ends.  To achieve this, a coking plate, fitted in front of the body of a coke oven door, is heated, more particularly by the gases released and passed through a gas-collecting passage.  These gases flow closely past plate and are thereby rendered turbulent.  The coking plate consists of overlapping shields which are secured to the body of the door by spacing members and, at the same time, serve to locate a layer of insulating material arranged on the inside of the body of the door.  Under-surface of the shields comprise rein-forcing ribs which are also used to connect thereto spacing members holding the said shields to one end.  At the other end the shields rest loosely upon the next shield.  This forms, as it were, armoured-scale structures which are easy to install and remove.  The coking plate is used to coke the ends of the oven, to relieve the pressure on the coke oven door seal, and to obtain the smallest possible distance between the oven-charge and the body of the door.
Patent CA-1172450-A (CA)
Inventor: RYDIN CARL N
IPC: A63H18/00
Filed: 1982-02-19
Granted: 1984-08-14
Abstract: TOY RAILROAD TRACK SWITCH ARRANGEMENT              Abstract of the Disclosure A track switch assembly for toy electrically operated railroad trains comprising a plastic base having the usual main and branch lines and switch point arrangement therefor, in which the inside rails and the power rails of the main and branch lines are interrupted and have mounted in the interruptions a main line continuity rail structure and a branch line continuity rail structure that are electrically insulated for separate energizing and that are shaped for continuous electrical energy supply as the locomotive and cars one by one pass through the switch.  Energization and switching of the switch points is ef-fected in an opposite manner using a pair of oppositely acting throw bars disposed transversely under the track and actuated by an actuation mechanism in turn actuated by oppositely acting solenoid coils energized through separate trigger circuits closed by contacts energized by the locomotive wheels, with one of the bars having a contact plate or strip to energize the continuity rail structure of the line being used for transit, and the other throw bar throwing the switch as needed.  Optional manual push button operation is also provided for.
Patent CA-1191989-A (CA)
Inventor: ROBESON LLOYD M
IPC: C08L65/00
Filed: 1982-03-26
Granted: 1985-08-13
Abstract: ALLOYS OF A POLY(ARYLENE SULFIDE) AND A POLY(ARYL KETONE) ABSTRACT OF THE DISCLOSURE        Described herein are alloys comprising a poly(arylene sulfide) and a poly(aryl ketone).  These alloys have a good combination of mechanical properties and unexpectedly display a higher strength than would be expected from the weight averaged constituent values.     S P E C I F I C A T I O N
Patent CA-1193451-A (CA)
Inventor: HAYDEN STEPHEN C
IPC: C09K3/14
Filed: 1982-04-08
Granted: 1985-09-17
Abstract: RANDOMLY-ORIENTED POLYCRYSTALLINE SILICON CARBIDE COATINGS             FOR ABRASIVE GRAINS             ABSTRACT OF THE DISCLOSURE    Disclosed is a composite abrasive particle com-prising a core abrasive crystal and a silicon carbide coating inherently bonded to substantially all of the exterior surfaces of said core crystal, said silicon carbide coating characterized by silicon carbide crystals having a random orientation substantially independent of the structure of the core crystal, the outer surface of the coating being conformationally irregular.  Aggregates of the composite abrasive particles are interconnected by a matrix of silicon carbide which has an open structure.  Preferred core abrasive crystals are diamond or cubic boron nitride.  The composite abrasive particles preferably are made by infiltrating core crystals bonded together by silicon carbide and elemental silicon, leaching substantially all of the silicon from the bonded mass with a silicon leaching agent, sub-dividing the resulting leached mass, and recovering the composite abrasive particles.
Patent CA-1173138-A (CA)
Inventor: BRYANT GREYHAM F
IPC: B21B37/32
Filed: 1982-04-23
Granted: 1984-08-21
Abstract: ABSTRACT     A method of controlling one stand of a mill for rolling strip material, the mill having upper and lower back-up rolls and a pair of work rolls disposed between the back-up rolls, first and second screw means for respectively controlling movement of the ends of one of the back-up rolls and first and second jack means for respectively applying forces to each of the ends of the work rolls and a shape sensor having outputs from which the stress distribution across the width of the rolled strip is determined, comprising separately analysing the affect upon the shape of the strip of the operation of each screw means and each jack means and deriving four mathematical expressions, each including a control parameter, respectively representative of such operations determining an error distribution E(x) as the difference between said stress distribution and a desired stress distribution obtaining a correction of stress distribution C(x) by determining an optimum value for each of said control parameters such that a functional of the distribution E(x) - C(x) is minimised and separately controlling operation of each of said screws and jacks in accordance with said control parameters.
Patent CA-1185592-A (CA)
Inventor: CRAWFORD STEVEN C
IPC: B66D1/44
Filed: 1982-05-10
Granted: 1985-04-16
Abstract: ABSTRACT OF THE DISCLOSURE          One or more freefall systems for a crane or the like is disclosed, which system includes a protective circuit that includes three separate switches that must be closed before the winch can be placed in its freefall mode.  A mode switch in the cab must first be closed, a brake pedal must be depressed to close a second switch, and a third switch must be held closed by the operator during freefall.
Patent CA-1187706-A (CA)
Inventor: DE SCHEPPER ACHILLE
IPC: C22B3/36
Filed: 1982-05-31
Granted: 1985-05-28
Abstract: Process for separating germanium from an aqueous solution ABSTRACT OF THE DISCLOSURE     Germanium is separated from an aqueous solution by means of a substituted 8-hydroxyquinoline extractant.    Re-extraction of germanium from the extractant is carried out above 40°C and with an organic phase : aqueous phase volume ratio less than 1, whereby obtaining a high re-extraction yield.
Patent CA-1171372-A (CA)
Inventor: KUMAMOTO SHOICHIRO
IPC: C12N5/00
Filed: 1982-06-07
Granted: 1984-07-24
Abstract: ABSTRACT OF THE DISCLOSURE         A method of culturing human cells which comprises effecting cultivation in a culture medium containing an extract of micro algae, such as Chlorella, Scenedesmus and Spirulina, said method permitting the normal successive cultivation of human cells to be maintained efficiently without giving birth to any morphological and genetic mutation over a much greater number of successions of generations than was hitherto even by the incorporation of animal serum in the culture medium, the improvement occurring even when the addition of such animal serum is cut down substantially, or even completely excluded.
Patent CA-1177449-A (CA)
Inventor: HOLLENSTEIN ERWIN B
IPC: B65D81/20
Filed: 1982-06-28
Granted: 1984-11-06
Abstract: Abstract:    An overpressure valve is provided for packages with flexible walls, the valve having a valve body able to be fluid-tightly joined with such a package.  The valve body has a flat valve seat having thereon a diaphragm with valve shutting parts.  In the seat there are valve openings, each having a number of concentric ring-like channels round it in the seat.  These concentric channels contain a sealant, more especially silicone oil.  The diaphragm is elastic and is imperforate, being made of a single piece of material extending across the valve seat. It is only kept in position by a keeper in a middle part of the valve seat so that portions of the diaphragm can be moved freely to expose the valve openings.  The result is a valve that is cheap and easy to manufacture, as well as being reliable after repeated operations and responding to very low pressure differentials.
Patent CA-1218393-A (CA)
Inventor: DREYER HEINZ
IPC: A01C15/04
Filed: 1982-08-31
Granted: 1987-02-24
Abstract: ABSTRACT OF THE DISCLOSURE           A machine for spreading granular material pneumatic-ally, the said machine being in the form of a trailer and be-ing equipped with a central storage tank and with pipelines, some of which project considerably beyond the said storage tank at right angles to the direction of travel, to which material is metered from the said storage tank by metering devices driven by variable speed drives, the said storage tank being divided into two parts, at least in its lower area, by a roof shaped central part.  In order to maintain the compact design of the machine, to keep the centre of gravity thereof close to the tractor, to obtain a storage tank of the largest possible capacity and, at the same time, achieve wide scatter paths, provision is made for a blower 7 to be located at least mainly under the roof shaped central part, and for the drive shaft 15 of the said blower to be located on the side of the blower facing the direction of travel, the drive elements 15 ... 24 being arranged mainly under the said roof shaped central part, while the metering elements 12, as seen in the direction of travel 8, extend approximately along the entire lower length of the said tank.
Patent CA-1172817-A (CA)
Title: Zero runout counter-rotating film extruder
Inventor: MARTINEK THOMAS W
IPC: B29C48/325
Filed: 1982-09-21
Granted: 1984-08-21
Abstract: ZERO RUNOUT COUNTER-ROTATING FILM EXTRUDER            ABSTRACT OF THE DISCLOSURE           This relates to a die assembly for extruding tubular casing films wherein there are counter-rotating die members.  One of the die members is mounted for shifting relative to its base under the influence of hydrodynamic pressures of the flowing extrudate so as to be self-centering relative to the other die member.  This provides for a high shear cylindrical area leading into the die orifice which is of uniform thickness and which will provide for uniform fiber orientation due to the zero runout of the rotating dies.
Patent CA-1191093-A (CA)
Inventor: BARTH JORDAN B
IPC: A61K8/04
Filed: 1982-09-29
Granted: 1985-07-30
Abstract: FUNCTIONAL AGGLOMERATED  SPECKLES, METHOD FOR MANUFACTURE THEREOF AND DENTIFRICES CONTAINING SUCH SPECKLES     ABSTRACT OF THE DISCLOSURE:          Functional agglomerated speckles, for incorporation in dentifrices, include agglomerates of a water insoluble powdered functional material and water insoluble, ethanol soluble ethyl cellulose.  Such speckles satisfactorily maintain their integrity and identity during processing of the dentifrice after addition of the speckles to the main dentifrice body but on storage, after packaging of the dentifrice in dispensing tubes, soften sufficiently so as to become essentially impalpable to one utilizing the denti-frice in brushing his teeth.  Despite such softening the speckles continue to maintain their identity as speckles in the dentifrice.  The speckles are especially useful in translucent or transparent gel dentifrices which contain components, such as flavoring and surface active agents, which may controllably soften the speckles on storage.  Also described in the specification are methods for the manufacture of the mentioned speckles, dentifrices incorporating them, methods for manufacturing such dentifrices and such denti-frices packaged in end use dispensing containers.
Patent CA-1194358-A (CA)
Inventor: CHANDLER WILLIAM S
IPC: A23B4/20
Filed: 1982-10-07
Granted: 1985-10-01
Abstract: ABSTRACT OF THE DISCLOSURE     A substantially dry, free-flowing particu-lated mixture suitable for use in the "dry" and "wet" curing of meat products, such as bacon, and for suppression of N-nitrosamine formation during subse-quent cooking of the cured meat products comprising a substantially uniform mixture of water soluble parti-culated meat curing constituents, aqueous insoluble amorphous absorbent silica particles and a liquid alpha-tocopherol uniformly distributed on the water soluble particles and said silica particles. The mixture preferably further contains particulated lecithin when it is to be employed for "wet" curing to further enhance the stability of the aqueous brine solution produced by dissolving the free-flowing mixture in water though which the alpha-tocopherol is uniformly dispersed providing a pumpable liquid for injection into meat products.  The free-flowing mixture can contain appropriate amounts of any one or mixtures of other ingredients of the types convention-ally employed in the curing of meat products such as salt, sugar, erythorbates, ascorbates, phosphate salts, nitrites, nitrates and the like.
Patent CA-1201947-A (CA)
Inventor: CAPONE DAVID M
IPC: F23N5/00
Filed: 1983-01-25
Granted: 1986-03-18
Abstract: TITLE COMBUSTION AIR TRIM CONTROL METHOD AND APPARATUS     ABSTRACT OF THE DISCLOSURE Air trim control actuator mechanically connects a fuel flow device to an air flow device for setting the air to fuel ratio in combustion apparatus.  An air to fuel ratio control unit is responsive to electrical input signals from an oxygen sensor that monitors the combustion products in the stack emissions. The air trim actuator includes a pivotally mounted input arm that is mechanic-ally connected to the control unit and is pivoted to a preselected position corresponding to the selected boiler load.  The input arm is connected by a link to an output arm which is pivoted through a preselected range of movement to control the position of the damper.  The output arm has an elongated arcuate slot for receiving the end of the link.  The output arm is pivoted to a position corresponding to the pivoted position of the input arm for selectively positioning the damper to provide air flow to the boiler for the desired air/fuel ratio.  Adjustments made to the boiler load automatically adjust the damper position for insuring that the proper air/fuel ratio is attained.  The position of the link in the slot of the output arm is adjustable by a correction signal transmitted by the control unit to a motor, or the like, which moves the position of the second end of the link in the slot of the output arm.  Thus, the range of movement of the output arm is adjustable in relation to the range of movement of the input arm.  By adjusting the position of the end of the link in the slot in response to variations in the boiler load condition or other factors that effect the air/fuel ratio, the damper is automatically moved to continuously maintain the optimum combustion conditions.
Patent CA-1198514-A (CA)
Inventor: THEIS PETER F
IPC: H04M3/487
Filed: 1983-02-08
Granted: 1985-12-24
Abstract: MESSAGE DELIVERY SYSTEM              ABSTRACT OF THE DISCLOSURE           A message delivery system is described which in-cludes a plurality of announce units, each of which includes means for storing a respective message segment.  A controller activates selected ones of the announce units in sequence in order to broadcast a message made up of a plurality of message segments to a number of line interface units.  Each of the line interface units is connected to a respective telephone line and acts to transmit the message to the as-sociated telephone line.  The controller activates selected ones of the announce units which store selected message segments in a predetermined sequence such that a total mes-sage made up of a number of separate segments is broadcast to the line interface units.  Each message segment is re-corded with an end of segment signal which is detected by the announce unit at the end of the respective segment.          Each announce unit generates an end of segment signal which is used by the controller in order automatically to se-quence the announce units in the proper order.  Because the message is divided into a plurality of segments, it is pos-sible to change only one segment without disturbing other portions of the message.  Furthermore, if any single an-nounce unit fails, remaining announce units continue to deliver remaining portions of the message.  In this way the disclosed message delivery system continues to operate at reduced capacity in the event of failure of one or more of the announce units.
Patent CA-1194955-A (CA)
Inventor: NAKAJIMA MASAHIRO
IPC: H03M7/16
Filed: 1983-02-14
Granted: 1985-10-08
Abstract: ABSTRACT A digital communication system in which parity checking of all the bits can be effected, even if differential logic is used is described.  In the trans-mitter section first digital signals of n trains, where n is a whole number equal to 3 or larger, are differentially converted to provide second digital signals which are used to provide a modulated signal with 2n (=N) modulation levels.  This modulated signal is transmitted and received in the receiving section and there it is demodulated to provide third digital signals of n trains corresponding to the second digital signals.  The third signals are dif-ferentially converted to provide fourth digital signals of n trains corres-ponding to the first digital signals.  One novel aspect of the system is that the Hamming distance between two words of the second digital signals corres-ponding to the adjacent two modulation levels is either 1 or 2 and there are N/2 Hamming distances equal to 1 and N/2 Hamming distances equal to 2.
Patent CA-1190864-A (CA)
Inventor: DRUTCHAS GILBERT H
IPC: B62D5/04
Filed: 1983-08-04
Granted: 1985-07-23
Abstract: Abstract A steering gear for turning steerable wheels of a vehicle comprises a member movable in opposite directions. The member has first and second portions. The first portion comprises a rack having gear teeth extending transverse to the direction of movement of the member. A manually rotatable pinion engages the rack for applying a first force to the rack. An electric motor applies a second force to the second portion of the member. The electric motor encircles the member and rotates a ball nut. The ball nut cooperates with a screw portion of the member to effect linear movement of the member in response to actuation of the motor.
Patent CA-1205279-A (CA)
Inventor: STARK MARTIN H
IPC: A63F9/00
Filed: 1983-08-26
Granted: 1986-06-03
Abstract: METHOD OF PRODUCING A PUZZLE                   ABSTRACT OF THE DISCLOSURE     A method of forming a puzzle comprises cutting a sheet having a design thereon into a plurality of parallel strips, cutting some or all of the strips transversely to form multiple pieces, rearranging the pieces of each cut strip end-for-end to form secondary strips, forming each of the strips into an endless ring, and assembling the rings on a spindle for independent rotation about a common axis.
Patent CA-1200636-A (CA)
Inventor: SAKANO HAJIME
IPC: C08L21/00
Filed: 1983-10-07
Granted: 1986-02-11
Abstract: Abstract:   The invention provides a thermoplastic resin com-position having good impact resistance, moldability and falling ball impact strength at a weld part.  The composition comprises (A) a polycarbonate resin having a reduced viscosity at 25°C in chloroform of 0.40 to 0.55 and (B) an ABS resin comprising 10 to 100 % by weight of a graft polymer of a diene rubber with an aromatic vinyl compound and at least one of a vinyl cyanide and an alkyl unsaturated carboxylate grafted thereon and 90 to 0 % by weight of a copolymer of an aromatic vinyl compound with at least one of a vinyl cyanide and an alkyl unsaturated carboxylate and having apparent melt viscosities at 250°C of 5 x 103 to 1 x 105 poise at a shear rate of 102 sec-1 and of 1.5 x 103 to 1 x 104 poise at a shear rate of 103 sec-1; the weight proportion of the components (A) and (B) being from 20 : 80 to 80 : 20.