baber/WOPTO huggingface dataset:
Patent CA-1208707-A (CA)
Inventor: BLAUSCHILD ROBERT A
IPC: H03F3/343
Filed: 1984-02-16
Granted: 1986-07-29
Abstract: ABSTRACT:          Impedance buffer.         A bipolar impedance buffer contains an input transistor (Q1) whose emitter is coupled to that of a like-polarity intermediate transistor (QN). Its collector is coupled to the base of a like-polarity output transistor (Q0), while its base is coupled to the collector of an opposite-polarity transistor (QP). A resistor (RN) coupled between the base and collector of the intermediate transistor significantly reduces the output settling time.
Patent CA-1199952-A (CA)
Inventor: SWANSON ROY T
IPC: H01H9/10
Filed: 1984-04-26
Granted: 1986-01-28
Abstract: ABSTRACT OF THE DISCLOSURE An improved switch for a high-voltage device in which ignition of a power cartridge generates pressure at one end of an insulative piston to move the piston, located in a conductive member, into a passageway in an insulative liner said piston moving a contact through the passageway and away from the conductive member to break an electrical interconnection between the conductive member and the movable contact, an insulative lip seal located in the bore between the power cartridge and the one end of the piston, the lip seal being movable with the piston and being conformally force-fit into the bore, and means limiting movement of the lip seal through the bore so that the lip seal remains in the bore after the switch is open restricting the flow of the ignition products of the power cartridge.
Patent CA-1219136-A (CA)
Inventor: MITCHELL DAVID E
IPC: E02B3/04
Filed: 1984-05-03
Granted: 1987-03-17
Abstract: ABSTRACT OF THE DISCLOSURE A natural or man-made underwater soil structure is densified by the vibratory shock waves caused by the sudden release of high pressure compressed air into the water above the soil structure.  A plurality of air guns are placed in close proximity to the soil and are fired at regular intervals of time during and/or after depositing of the soil to improve the soil structure's ability to support a platform or the other structure, and to reduce the likelihood of damage under environmental loading.
Patent CA-1239298-A (CA)
Inventor: TON MICHAEL A
IPC: A61C13/00
Filed: 1984-05-30
Granted: 1988-07-19
Abstract: ABSTRACT OF THE DISCLOSURE           An implant and dental prosthesis comprises an anchoring part having one or more fixing means and a prosthesis part adapted to fix a dental prosthesis.  The implant is provided with a cavity extending from the prosthesis part into the anchoring part, the wall of the anchoring part is perforated at one or more places and the prosthesis part is provided with a removable closing means for the cavity; when the implant is implanted the cavity of the implant may contain a medicine for protecting the implant against pathogenic bacteria etc.
Patent CA-1253607-A (CA)
Inventor: WEBB PAUL P
IPC: H01L27/144
Filed: 1984-06-22
Granted: 1989-05-02
Abstract: RCA 79,180 PHOTODETECTOR ARRAY AND A METHOD OF MAKING SAME ABSTRACT OF THE DISCLOSURE A photodetector array having reflector means positioned over the low response regions between elements of the array.  Light incident on the reflector means is reflected into a high response region of the array.  The invention also includes a method of forming the reflector means comprising the steps of forming wedge-shaped pro-jections on the surface of a mold, coating the projections with a reflective material, filling the space between the coated projections with a transparent material and separating the mold from the material with the reflective layer adhered to the material.
Patent CA-1220039-A (CA)
Inventor: BURNS GERALD E
IPC: B63B21/50
Filed: 1984-06-27
Granted: 1987-04-07
Abstract: ABSTRACT OF THE DISCLOSURE Pressurized liquid filled tubular tendons provide a means for detecting leaks therein.  Filling the tendon with a liquid having a specific gravity less than that of sea water provides increased buoyancy and reduces the weight supported by the buoyant structure.  The use of a corrosion inhibiting liquid reduces the corrosion of the interior tendon wall.
Patent CA-1226669-A (CA)
Inventor: GOUNDER RAJ N
IPC: H01Q15/14
Filed: 1984-07-31
Granted: 1987-09-08
Abstract: ELECTROMAGNETIC RAID AT ION REFLECTOR STRUCTURE                  Abstract of the Disclosure A deployable, spacecraft-borne, reflector structure comprises:  a reflector sheet 12 having a reflecting surface and being formed from a plurality of plies; each ply includes at least two layers of graphite fiber reinforced epoxy; the fibers in respective GFRE layers of each ply are oriented to provide quasi-isotropic properties in that ply; an annular rib is bonded to a rear surface of the reflector sheet at the periphery of the sheet; the rib includes members disposed to present a U-shaped cross-section; and each of the rib members also includes a plurality of plies and is of construction like that of the reflector sheet.
Patent CA-1201624-A (CA)
Inventor: SOMODI JOHN S
IPC: F23H15/00
Filed: 1984-08-30
Granted: 1986-03-11
Abstract: STEPPED HEARTH INCINERATOR WITH POSITIVE CLEAN-OUT               OF AIR FEED-TUBES                ABSTRACT OF THE DISCLOSURE An inclined hearth incinertator for the incineration of municipal, and industrial/commercial solid waste optionally in conjunction with sludge, with a controlled amount of combustion air allows the even distribution of underfire air to an upper hearth of plural stepped hearths in the floor of the incinerator. A clean-out assembly includes a piston which automatically cleans out feed-tubes for combustion air. The feed-tubes are protected by being embedded in the hearth, or being disposed beneath the hearth. The piston and a ram on the hearth may be interconnected for reciprocation by an acutating means so as to provide synchronous to-and-fro movement of the piston and ram.
Patent CA-1235969-A (CA)
Inventor: FERGUSON ROBERT W
IPC: F24B1/02
Filed: 1984-11-28
Granted: 1988-05-03
Abstract: ABSTRACT OF THE DISCLOSURE            Solid fuel heating appliance having high thermal efficiency and low levels of polluting emissions. The heating appliance includes an insulated secondary combustion chamber where a mixture of exhaust gases from the primary combustion chamber and secondary air is burned. A catalytic igniter is provided in the secondary combustion chamber to lower the ignition temperature of the unburned volatile gases from the primary combustion chamber. Regenerative feedback structure is provided in heat exchange relationship with the exhaust from the secondary combustion chamber to preheat the mixture entering the secondary combustion chamber. The combination of the insulated secondary combustion chamber, catalytic igniter, and the regenerative heat transfer assure substantially continuous combustion within the secondary combustion chamber even when conditions in the primary combustion chamber change. In a retrofit embodiment for existing stoves, a sheet metal partition in the secondary combustion chamber allows heat transfer from spent gases to the entering mixture of exhaust and secondary air. In a unitary stove embodiment, secondary air is heated by the spent gases which proceed to remote heat exchangers separated from the primary firebox by ventilated air spaces. To prevent room emissions, the stove door is sealed by a vented double gasket system.
Patent CA-1260674-A (CA)
Inventor: KASAI KAZUMI
IPC: A44B11/04
Filed: 1984-12-20
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE      A strap fastener or buckle for connecting ends of a strap, belt or the like is disclosed, which is adapted to adjust the effective length of the strap.  The strap fastener is formed from a plastic material into an integrally molded structure having a grip head portion at one end and a connecting portion at the opposite end, these portions being connected by a pair of side flanges.  The fastener includes a first cross bar spaced from and parallel with a second cross bar.  Both cross bars extend between and are connected to the side flanges.  The grip head portion has a sharply cornered bottom edge which serves as a stop for the strap.  One of cross bars is disposed adjacent to the grip head portion.  It has a plurality of sharp corners defining stops for the strap, one of the corners being disposed adjacent to the grip head portion and being spaced from the bottom edges by a distance greater than the thickness of the strap as viewed from the plan.          The strap fastener is thus provided with multi-point stops along the path of the strap so that the strap can be retained firmly in place under heavy tension.
Patent CA-1256605-A (CA)
Inventor: MACDONALD ROBERT I
IPC: H04Q3/52
Filed: 1985-01-16
Granted: 1989-06-27
Abstract: ABSTRACT             Optoelectronic switching matrix which switches multiplexed input signals to narrowband output lines.  Each crosspoint of the matrix is comprised of a heterodyning photosensor, which optically receives the multiplexed input signal and electrically receives a selectable local oscillator signal.  The difference frequency can thus be selected to be within the passband of a low pass filter whereby narrowband output signals can be received from the input signals without requiring the use of a demultiplexer.
Patent CA-1263269-A (CA)
Inventor: MEYER EDWIN W
IPC: A23K1/18
Filed: 1985-01-18
Granted: 1989-11-28
Abstract: ABSTRACT         Dry mixes of zinc salts with particulate protein-aceous feeds for ruminants decrease the rumen digestibility of the protein thereby increasing the nutrient value of the feed to the ruminant.  The zinc salts are incorporated as powders external to the particles of feed material.  The protective action against micro-organism attack on the pro-tein is provided in the rumen.  The dry mix feed materials can be used with beef and dairy cattle and sheep.
Patent CA-1256133-A (CA)
Inventor: MOLL RICHARD J
IPC: B65H45/00
Filed: 1985-01-28
Granted: 1989-06-20
Abstract: RICHARD J. MOLL        APPARATUS FOR SETTING ROLLER CLEARANCE               ABSTRACT OF THE DISCLOSURE Apparatus for setting roller clearances is disclosed, particularly suitable for folding machines, in which the desired clearance between adjacent rollers can be set at a predetermined thickness, with contact pressure between the rollers at a desired amount, and which clearance can be easily varied for different thicknesses of paper to be folded.
Patent CA-1202997-A (CA)
Inventor: STUART ALAN K
IPC: E01H1/12
Filed: 1985-02-07
Granted: 1986-04-08
Abstract: ABSTRACT          A device for the collection of solid animal waste is described in which a cylindrical housing has a hand at one end with a plurality of fingers which are moveable in response to movements by a handle and shaft which extend through the housing to define open and closed positions of the hand.  The fingers can be resiliently mounted to the housing or can be pivotably mounted.  The fingers are moved inwardly and outwardly by coupling the fingers to the shaft via a plurality of small wire rods which are connected between approximately the mid-points of the fingers and a coupler located at the end of the shaft and within the hand.  The device is stable in the open position because the coupler is moved to an over-centered position.
Patent CA-1239179-A (CA)
Inventor: MERCER JAMES M
IPC: H01H71/58
Filed: 1985-06-14
Granted: 1988-07-12
Abstract: ABSTRACT An operating mechanism is provided for push-button circuit breakers.  The breaker mechanism includes a frame and a pair of contacts supported relative to the frame which are displaceable relative to one another between an open and a closed position.  A bell crank having a deflecting surface and a cam surface is pivotally mounted on the frame so as to pivot between a first and second stable position.  A linkage assembly is coupled with the bell crank and at least one of the contacts and is displaceable so as to open and close the contacts.  A push-button actuator is movably supported relative to the frame.  Tile push-button actuator is adapted to engage the cam surface of the bell crank in its first stable position to displace the bell crank into the second stable position in order to displace the linkage assembly to close the contacts. The push-button actuator is also adapted to engage the deflecting surface of the bell crank in its second stable position 80 that the push-button actuator is deflected by the deflecting surface to prevent displacement of the bell crank from its second stable position.  An electrical actuator is supported on the frame and is adapted to displace the linkage assembly under predetermined conditions to open the contacts and enable displacement of the bell crank from its second stable position back to its first stable position.
Patent CA-1234833-A (CA)
Inventor: KOENIG KLAUS
IPC: C07C265/12
Filed: 1985-11-07
Granted: 1988-04-05
Abstract: Mo-2713 LeA 23,438 BIS-(4-ISOCYANATOPHENOXY)-ALKANES AND A   PROCESS FOR THE PRODUCTION THEREOF      ABSTRACT OF THE DISCLOSURE Bis-(4-isocyanatophenoxy)-alkanes corresponding to the formula   in which R      represents a divalent, saturated aliphatic hydrocarbon radical having from 2 to 6 carbon atoms with at least two carbon atoms between the two ether oxygen atoms, and R'     represents hydrogen or a methyl group with R' being the same on both rings, are produced by phosgenating the corresponding diamine or an adduct of the corresponding diamine.  These diisocyanates are particularly useful in the production of isocyanate addition products having outstanding physical and mechanical properties.         Mo-2713
Patent CA-1259583-A (CA)
Inventor: MANN SAMUEL J
IPC: B05C17/02
Filed: 1985-11-28
Granted: 1989-09-19
Abstract: ABSTRACT OF THE DISCLOSURE     A lotion dispenser for storing a lotion having a viscosity between about 18,000 and 35,000 CPS therein and for dispensing the lotion to a human's skin. A roller is provided in a dispensing head and is adapted to receive the lotion that is stored in a reservoir.          The roller includes radial ribs spaced apart to permit effective traction as the lotion is dispensed and permit a uniform layer of lotion to be applied to the skin's surface.
Patent CA-1254270-A (CA)
Inventor: HIROSAKI BOTARO
IPC: H04L7/033
Filed: 1985-12-05
Granted: 1989-05-16
Abstract: ABSTRACT         A phase-locked loop which is controllable irrespective of the kind of input signal is described.  A random two-level code sequence derived from a clock signal having a predetermined fre-quency is applied as an input signal.  A voltage controlled oscillator generates a local clock signal.  In response to the local clock pulse, a discriminator latches the input signal to produce a discrimination signal.  An exclusive-OR gate produces a first phase difference signal from the input signal and the discrimination signal.  A phase supplement signal generator, res-ponsive to the first phase difference signal and the local clock pulse, produces a phase supplement signal.  Responsive to the first phase difference signal and the phase supplement signal, a control signal generator produces a control signal to control the voltage controlled oscillator.
Patent CA-1251412-A (CA)
Inventor: IMANISHI SYOZO
IPC: B21D43/05
Filed: 1986-01-09
Granted: 1989-03-21
Abstract: ABSTRACT OF THE DISCLOSURE A system for tridimensionally driving feed bars in a transfer press machine.  This system includes an advance-return device for causing the fed bars to advance or return, a device for approaching the feed bars to each other or separating the feed bars from each other to thereby clamp or unclamp a work, and a lift-lowering device for raising or lowering the feed bars.  Members for holding the feed bars are approached to each other or separated from each other by the rotation of two pinions, these two pinions are rotated by a rack connected to a crankshaft through a connecting mechanism including a lever.  The lift-lowering device is constructed such that a pinion in engagement with a spline shaft and a rack in engagement with this pinion to be vertically movable are provided in operational association with the feed bar holding members.  The spline shaft is driven by the same driving source as that for the clamp-unclamp device.
Patent CA-1238790-A (CA)
Inventor: BUSER KENNETH R
IPC: C22B11/02
Filed: 1986-01-21
Granted: 1988-07-05
Abstract: TITLE      Recovery of Silver From Photographic Films By High Shear Conditions Abstract of the Disclosure A method for the recovery of silver from photographic film having a polyester base and a macromolecular organic polymer coating to which is adhered a light sensitives silver emulsion layer.  The process includes mixing small film pieces in a hot aqueous liquid having a solids concentration level of at least 25 percent by volume.  The mixture is subjected to conditions of high shear to remove the silver emulsion.  The liquid containing the silver emulsion is then separated from the film pieces and the silver is recovered from the liquid.
Patent CA-1249887-A (CA)
Inventor: NOWAK FREDERICK H
IPC: B66B1/24
Filed: 1986-03-20
Granted: 1989-02-07
Abstract: Abstract Multicompartment Elevator Call Assigning In an elevator having a group of double-deck cars, a hall call is assigned to one of the decks according to a priority scheme that takes into account the service capability of each car and its decks in a way that favors assignment of the call to the lagging deck of the car most capable of answering the call.
Patent CA-1234347-A (CA)
Inventor: VASA JIRI
IPC: B62B1/00
Filed: 1986-04-01
Granted: 1988-03-22
Abstract: ABSTRACT OF THE DISCLOSURE          A wheelchair includes a seat mounted on a frame supported on two wheels only.  The wheels are mounted one in front of the other so that in use a first of the wheels tends to follow in the track of the second wheel.  Handle means are provided by which an attendant can propel the wheelchair and maintain it upright.   The size of the wheels and the location of the seat lengthwise between the two wheels ensures a low centre of gravity and easy management by the attendant.  Preferably the foremost of the two wheels acts as a castor wheel.
Patent CA-1251861-A (CA)
Inventor: TRETHEWEY PAUL M
IPC: G01D7/00
Filed: 1986-04-17
Granted: 1989-03-28
Abstract: Abstract A device for providing a visual indication of the value of a variable of an electrical signal comprises a plurality, n, of driver circuits each having an input terminal for receiving the electri-cal signal and a plurality, n, of output terminals. Each driver circuit is operable in a mode in which it provides an output signal at its ith output terminal when the value of the variable lies in a range corresponding to the ith increment on a scale of m increments.  The position of the scale of m increments associated with each circuit is adjusta-ble so that the scale of m increment associated with the jth driver circuit overlaps by ((m - 1) + (n - l/n) increments the scale of m increments as-sociated with at least one of the (j - 1)th circuit and the (1 + 1)th circuit.  Light emitting ele-ments, arranged in a linear array, are coupled to respective output terminals of the driver circuits.
Patent CA-1272181-A (CA)
Inventor: STAUB HANS-RUDOLF
IPC: B01F13/10
Filed: 1986-09-25
Granted: 1990-07-31
Abstract: PROCESS FOR PREPARING SUSPENSIONS OF SOLID LUBRICANTS       ABSTRACT OF THE DISCLOSURE     A process is disclosed for preparing a suspension of a solid lubricant which is used in the non-cutting hot forming of metals.  lubricants containing graphite and polymers are presuspended in a colloid mill in water as a carrier liquid and immediately thereafter are subjected to a further mixing process in an intensive mixer, thereby being processed to a stable suspension.
Patent CA-1240405-A (CA)
Inventor: ROBINSON ANTHONY H J
IPC: H05K13/00
Filed: 1987-02-06
Granted: 1988-08-09
Abstract: CIRCUIT BOARD CARRIER            Abstract of the Disclosure A carrier for holding a circuit board while passing round an automated insertion line has a rectangular frame with support members extending in from the inner periphery.  In a particular example, the support members on three sides have support surfaces and lateral locating surfaces.  Spring retaining members are provided, one above each support surface.  On the fourth side, support members only have support surfaces in the example.  At each end of the fourth side, a laterally deflectable cantilever spring member holds down the circuit board along the fourth side.  An external flange provides a support for the carrier on a conveyor.  The inner periphery is shaped to avoid interference with the solder wave and to avoid causing turbulence.   - i -
Patent CA-1259190-A (CA)
Inventor: DOWNING DAVID G
IPC: G09F13/10
Filed: 1986-12-05
Granted: 1989-09-12
Abstract: ILLUMINATED SIGN SYSTEM                 ABSTRACT OF THE DISCLOSURE           Existing illuminated signs required skilled workers to replace or change the sign face.  The present sign system allows the illuminated faces to be rapidly and easily changed by non-skilled workers.  Transparent plastic envelopes are used to support color transparencies which form the sign faces.  The envelopes are easily slipped into and out of the display position. The sign system is particulary suited for use as point-of-purchase advertising in grocery store aisle markers.
Patent CA-1268226-A (CA)
Inventor: SINGH AMAR J
IPC: H04B15/00
Filed: 1987-04-06
Granted: 1990-04-24
Abstract: ABSTRACT OF THE INVENTION            A data processing system has a plurality of stations or terminals linked to a star coupler over cables comprising separate sending and receiving transmission lines,  the cable shield being connected to system ground.  To mini-mize bit error rate when a station is powered down, the transmitting differential amplifier at each terminal sta-tion is connected between a bias voltage and a virtual ground created by a pair of diodes connected in parallel, their anodes being connected to a voltage source through a current limiting resistor, the cathode of one diode be-ing connected to system ground, the cathode of the other diode being connected to one side of the transmitting amplifier to define the virtual ground.  To further en-hance noise rejection, a balanced differential network is connected to the outputs of a transistor pair at the amp-lifier output to the differential wire transmission line.          The network comprises a resistor and diode connected in series between each transistor's emitter output and the amplifier bias voltage source,  the combined resistance and dynamic impedance of each portion of the balanced differential network being equal.  At the receiver end of the star coupler cabinet, a series resistor network is coupled from a bias voltage source for a differential re-ceiver amplifier to the system ground.  The receiver amp-lifier has two input transistors; the resistor network includes a resistor coupled across the transistor inputs of a resistance matched to the characteristic impedance of the cable; two additional resistors are connected in series between the ends of this resistor and the inputs to the amplifier transistors to define a relatively high offset voltage across the input to the receiver ampli-fier.
Patent CA-1269277-A (CA)
Inventor: FRAZZELL MICHAEL E
IPC: F04C5/00
Filed: 1987-08-12
Granted: 1990-05-22
Abstract: ABSTRACT A marine drive water pump impeller is provided for a marine rotary vane positive displacement water pump.  A filament wound annular drive hub is cured with resin polymer.  A rubber annular base having a plurality of flexible radial vanes, is molded in place around the drive hub.  The resin polymer and the rubber are compatible and enable substantial bond strength therebetween.  The hub is wound in the circumferential hoop direction, providing substantial hub strength.  The invention over-comes frozen water pump problems in marine drives used in freezing environments.