baber/WOPTO huggingface dataset:
Patent CA-1082782-A (CA)
Inventor: RIBLET GORDON P
IPC: H01P5/18
Filed: 1977-05-27
Granted: 1980-07-29
Abstract: DIRECTIONAL COUPLER         Abstract of the Disclosure A compact four-port two branch coupler preferably constructed in stripline or microstrip media having an input port and a pair of output ports.  The equivalent admittance of a coupler has a real part (conductance) and imaginary part (susceptance), and known design techniques require the branch line electrical length .theta. to be .pi./2 or 90°, so that the device is properly matched. However, to reduce the physical line lengths at a predetermined operating frequency in accordance with the invention the electric-al length .theta. is chosen at a lower value of, for example, .pi./4 or 45° thereby reducing the line lengths of the branches making the device more compact.  This choice now creates an inductive mismatch in the equivalent admittance  which is easily compensated for by a capacitance at each junction in order to make the total susceptance zero so that the device is matched for .theta. = .pi./4. This is accomplished quite effectively with the capacitive sections being conveniently located in the central open area formed between the four strip networks defining the coupler.
Patent CA-1047870-A (CA)
Title: Solar energy converter
Inventor: PEI YU K
IPC: F24J2/52
Filed: 1977-08-30
Granted: 1979-02-06
Abstract: ABSTRACT OF THE DISCLOSURE    The disclosed invention relates to a solar energy collector in a conversion system.  m e collector is made from common glass tubing lengths of different diameters and comprises a first outer clear glass cylindrical tube having approximately a semi-cylinder surface portion mirror coated for reflection and a collector tube inside the first tube having an energy absorbing coating on its exterior surface.  The tubes resemble over-sized test tubes in that one end is closed.  The collector is held in place inside the outer tube by a spacer-support element snapped on the closed end of the collector.  The open end of the outer tube is sealed to the wall of the collector, and the space is evacuated.  An open-ended fluid handling tube of glass is inserted into the collec-tor tube and has a spiral or helical baffle along its length to guide working fluid issuing into the collector near its closed end along the wall thereof and absorb collected heat.  Several of the energy collectors are detachably connected into a manifold for circulation of working fluid (air or water or the like) into the hand-ling tube and receive working fluid flowing from the collector tube.  The manifold provides for collector tubes to depend on opposite sides as a module covering predeter-mined area of rooftop or like solar exposure.  The working fluid carrying the energy is utilized in a heating or cool-ing system.
Patent CA-1098194-A (CA)
Inventor: KLINGER LANCE T
IPC: G05D3/12
Filed: 1977-08-31
Granted: 1981-03-24
Abstract: Abstract of the Disclosure The stiffness of a second-order damped servo system with position and velocity reedback circuits is increased without affecting the command response, damping factor, or natural frequency of the system by adding an acceleration reedback circuit and maintaining a apecified relationship between the effective gain of the acceleration feedback circuit and the effective gain of the servo driver.
Patent CA-1082379-A (CA)
Title: Telephone isolation system
Inventor: SIMOKAT FRANK L
IPC: H04M3/30
Filed: 1977-12-12
Granted: 1980-07-22
Abstract: Abstract The system disclosed transiently disconnects a subscriber's telephone equipment and network from the service provider (e.g. telephone company) network for a predetermined period of time in response to a remote switching pulse to facilitate the execution of diagnostic measurements without the necessity of visiting the subscriber's premises.  The disconnect action is carried out by a two stage solid state circuit incorporating gate controlled devices such as SCRs together with RC networks whereby a capacitance is charged in response to the remotely originated switching pulse and then discharges to energize a switching relay and so maintain it energized for a predetermined period.  In the energized state the switching relay isolates the subscriber network and its equipment from the telephone company network to permit the diagnostic measurements. The circuit design also provides improved noise suppression, as well as protection against spurious switching and certain overvoltage conditions.  A modified version also provides means for detecting certain tip short conditions.
Patent CA-1066524-A (CA)
Inventor: GISSINGER BERNARD C
IPC: E02D5/80
Filed: 1977-12-28
Granted: 1979-11-20
Abstract: Ground Anchoring Method and Device Abstract of Disclosure :       For sinking into the ground an anchoring wire of small diameter with a small resistance to bending, having retaining means at its lower end, a tubular sleeve is engaged onto said wire in order closely to surround the same, and both the sleeve and the wire with its retaining means in a rest position are sunk into the ground by hammering or pushing, while avoiding any relative displacement between said sleeve and said wire.          When the desired depth has been reached, the sleeve and wire are moved relatively to each other in order to spread out the retaining means, and then the tubular sleeve is extracted from the ground to be used for another anchoring operation. The anchoring device thus only comprises the wire and the expanded retaining means. Said means can comprise a strip extending normally along the wire and which is distorted by the relative motion between the sleeve and the wire to be brought into an expanded condition. For the penetration of the assembly into the ground, a cap or the like is adapted onto the sleeve and wire. A cheap anchor is thus obtained, because more expensive members like the sleeve and the elements used for sinking the anchoring device into the ground are removable and usable for other anchoring operations.
Patent CA-1100651-A (CA)
Inventor: GRANGE JEAN-CLAUDE
IPC: H04M19/02
Filed: 1978-01-17
Granted: 1981-05-05
Abstract: TELEPHONE LINE SWITCHING         Abstract The subject invention relates to a telephone line circuit and to the logic associated therewith, in order to detect the various possible line status, more especially to detect an off hook status during ringing. The circuit is essentially comprised of a first detector (DA) sensitive to the line current phase, a second detector (DB) sensitive to the ringing voltage phase, and two pulse generators (RTG1 and RTG2), of the same frequency as the ringing voltage, appearing at the positive and negative zero-crossings of the ringing voltage, respectively.  When only the ringing current is applied to the line, only the signals from both detectors and the first generator are simultaneously present (once per period).  When the called subscriber lifts his handset, the signals from both detectors and the second generator are also simultaneously present once per period.  These pulse coincidences are detected and processed by an appropriate logic.
Patent CA-1071257-A (CA)
Inventor: BROWN JOHN E
IPC: F16J15/26
Filed: 1978-01-20
Granted: 1980-02-05
Abstract: ABSTRACT OF THE DISCLOSURE          An annular sealing element which has a cross-sectional shape such that upon axial compression its outer and/or its inner periphery is caused to move radially outwards or inwards respectively.  The element has fluid ducts arranged to conduct fluid passed the walls of the seal.
Patent CA-1094740-A (CA)
Inventor: NOGAMI SUMITAKA
IPC: C09D167/00
Filed: 1978-02-23
Granted: 1981-01-27
Abstract: ABSTRACT OF THE DISCLOSURE        A novel polyester type powder coating composition which includes a specific self-hardening polyester of air-hardening type comprising as main ester-constituting monomer units, (1) at least one polycarboxylic acid component containing at least 10 mole %, based on the polycarboxylic acid component, of at least one aromatic polycarboxylic acid component (A) and (2) at least one polyhydric alcohol component, having in its main chain at least one terminal blocked with a monofunctional unsaturated alicyclic compound component (B) and having a soft-ening point of 30 to 150°C.  This composition is excellent in storage stability and adaptability to either thin coating or thick coating, and when it is applied onto an article to be coated and baked at a temperature of 170 to 230°C. for 5 to 30 minutes, a coating excellent in appearance, mechanical strength, gloss and reflection sharpness can be formed ad-vantageously without generating undesired gases at the baking.
Patent CA-1093617-A (CA)
Inventor: GRUNERT KURT A
IPC: H01H1/22
Filed: 1978-03-03
Granted: 1981-01-13
Abstract: 46,186 ELECTROMAGNETIC CONTACTOR               ABSTRACT OF THE DISCLOSURE        An electromagnetic contactor characterized by a stationary contact structure, a movable contact structure, the movable contact structure comprising a contact arm and a conductor, and a shuntless, pivotal electrical connection between the contact arm and the conductor.
Patent CA-1047715-A (CA)
Inventor: MARTINDALE TROY E
IPC: B44B7/00
Filed: 1978-03-31
Granted: 1979-02-06
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus for the branding of pneumatic tires com-prising: an endless conveyor means; a plurality of stations along the path of the conveyor means; and a plurality of branding machines.  The conveyor means support the branding machines in spaced relationship for movement intermittently from one station to another in a closed path.  Conveying means at each of the stations supply and take away tires.  Each branding machine has means for supporting a tire thereon.  A stationary platen on the tire support means supports an inner portion of a sidewall of a tire; and a bracket is mounted on the support means for support-ing the lower portion of a tire.  Cylinder means are connected to the bracket for adjusting the position of the bracket rela-tive to the stationary platen.  A moveable platen is mounted on the branding machine for movement toward and away from the sta-tionary platen, the moveable platen having a branding head there-on.  First actuating means are operatively connected to the move-able platen for selectively adjusting the angular position of the moveable platen relative to the stationary platen.  Second actuat-ing means are connected to the moveable platen for movement there-of toward the stationary platen to carry the branding head into engagement with the sidewall of a tire supported by the station-ary platen, and held by the tire supporting means.  Means are provided for heating the moveable platen and branding head to vulcanize an indicia on the sidewall of a tire upon engagement of the sidewall of a tire by the heated branding head.
Patent CA-1099337-A (CA)
Inventor: SZABO JOSEPH F
IPC: H01M2/12
Filed: 1978-04-12
Granted: 1981-04-14
Abstract: ABSTRACT OF THE DISCLOSURE         A vent system for an electric storage battery having a flame arresting capability to minimize the possibility of battery explosion from ignition of explosive gases flowing from the vent plug.  The vent system includes a vent plug design having an internal restricted passage and a flange extending around the top of the vent plug which cooperates with the upper surface of the battery cover to create an explosion chamber, so that in the event the explosive gases being vented are ignited, the resulting con-trolled explosion extinguishes the flame.  One embodiment is provided wherein the top surface of the plug is flush with the top of the battery cover.  A modified vent well is required for this embodiment, whereby the vent well in the battery cover has a recessed shoulder to receive the flange portion of the vent plug.  A second embodiment is also provided wherein the vent plug can be used on conventional battery cover designs, but is not flush with the top of the battery cover.
Patent CA-1093525-A (CA)
Inventor: BERUBE RICHARD G
IPC: G03B21/54
Filed: 1978-05-01
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE    The invention is a new hub assembly for mounting magnetic tape supply reels for rotation on a selected axis, e.g. in a tape cassette loading machine.  The hub assembly comprises a hub adapted to be mounted on a selected axis, a clamping element in the form of a resilient ring on the periphery of the hub, and, camming means and cam followers for expanding the resilient ring outwardly of the periphery of the hub so that the hub can exert pressure on a reel mounted on the hub.
Patent CA-1078730-A (CA)
Inventor: JANKOWSKI CHRISTOPHE
IPC: B01F3/12
Filed: 1978-05-15
Granted: 1980-06-03
Abstract: La préparation de suspension du fénitrothion à l'aide du générateur des ultrasons est décrite.  La suspension fine du fénitrothion ainsi préparée remplace les solutions ou les émulsions utilisées dans l'arrosage des forêts avec cet insecticide.
Patent CA-1108324-A (CA)
Inventor: KAWADA TOYOSHI
IPC: G09G3/29
Filed: 1978-05-16
Granted: 1981-09-01
Abstract: ABSTRACT OF THE DISCLOSURE An improved row selecting and driving system for a self-shift type gas discharge panel for a multi-row display providing several shift rows is described.  Each shift row is composed of at least one shift channel having a regular arrangement of several discharge cells, and each discharge cell is composed of facing  electrode groups of 2 x 2 or greater.  To the electrode groups of a selected shift row, a shift voltage is sequentially applied for realizing the shift of a discharge spot m one direction, while to the electrode group of a non-selected shifting row, a shift voltage having a different sequence of voltage application from that for the selected shift row is applied.  Thus a "sway" shift operation is performed within the spatial cell arrangement period and thereby said discharge spot is held in said cell arrangement period.  According to such a driving system, the operation margin in all of the selected and not-selected shifting rows can be made equal and as a result, display quality can be improved.                ::                    :
Patent CA-1112013-A (CA)
Title: Procede pour l'extrusion de compositions a base de polymeres d'alpha-olefines
Inventor: ALARD JOSEPH
IPC: C08K5/52
Filed: 1978-05-29
Granted: 1981-11-10
Abstract: Procédé pour l'extrusion, suivie d'un refroidissement à l'eau, de compositions à base de polymères d'alpha-oléfines, les compositions extrudées comprenant un anti-oxydant phénolique, un phosphite organique, un carbonate de métal alcalinoterreux, et permettant d'extruder des films, des filaments et des tubes.
Patent CA-1071041-A (CA)
Inventor: NOBBE PAUL J
IPC: A01K1/00
Filed: 1978-06-23
Granted: 1980-02-05
Abstract: ABSTRACT   A method and mold for producing a concrete slotted floor for supporting animals.  The mold includes a bottom part with a smooth top surface with lengthwise extending ridges formed thereon.  The top part of the mold locks to the bottom part and includes a plurality of parallel slab separators seatable upon the ridges.  The top part includes end walls and side walls defining an enclosure for receiving the poured concrete.  The slab separators are spaced apart from the end walls allowing the concrete to extend completely around each separator to form integrally joined concrete slabs.  Concrete is poured into the top part of the mold between each separator and across the ends of the separators.  The mold is vibrated and the concrete is allowed to solidify.  The top part of the mold is then lifted upwardly and the solidified concrete 18 removed and turned over in order that the smooth surface of the concrete contacting the bottom part of the mold faces upwardly.  In the preferred embodiment, a wooden insert is removably mounted to the concrete slotted floor and positioned in an upwardly facing recess formed in the floor during the molding thereof.
Patent CA-1083872-A (CA)
Title: Method of making a pad of stacked bags
Inventor: RUDA RAYMOND J
IPC: B31B70/00
Filed: 1978-07-04
Granted: 1980-08-19
Abstract: ABSTRACT         Polyethylene bags, such as used for food at a carry-out counter of a restaurant, are formed as a pad or tablet from which individual bags are torn. The pad has a pair of apertures at one end receptive of support means at the place of use. The bags are joined together in pad-form by directing hot air through enpty pre-cut apertures to enable the material defining the aperture periphery to fuse with corresponding material in the adjacent bag.
Patent CA-1059435-A (CA)
Inventor: JONES MARVIN R
IPC: E21B31/06
Filed: 1978-08-10
Granted: 1979-07-31
Abstract: ABSTRACT OF THE DISCLOSURE         There is disclosed an assembly for use in an annular blowout preventer of the type wherein a packer, received within a recess about a bore through the preventer housing, is adapted to be contracted by means of a piston having an annulus of resilient material movable inwardly within a chamber sur-rounding the recess and divided therefrom by a wall of the housing, and a disc-shaped member of resilient material ex-tending through and sealably slidable within a slot in the wall to transmit the inward movement of the piston to the packer. The assembly comprises a packer and piston of particular design, also means of particular design interconnecting the piston and packer.
Patent CA-1116156-A (CA)
Title: Granular activated carbon manufacture from brown  coal treated with concentrated inorganic acid  without pitch
Inventor: MURTY HARI N
IPC: C01B31/12
Filed: 1978-10-06
Granted: 1982-01-12
Abstract: GRANULAR ACTIVATED CARBON MANUFACTURE FROM    BROWN COAL TREATED WITH CONCENTRATED  INORGANIC ACID WITHOUT PITCH                Abstract of the Disclosure Granular activated carbon is manufactured from briquette of about 1" x 2" mesh formed from brown coal from which iron material has been extracted and which has a moisture content of about 15% by weight, by crushing and screening the pre-treated coal briquettes to produce 8/30 mesh granules which are treated by mixing with about 5% by weight of concentrated inorganic acid (H2SO4, H3PO4, or HCl), without the addition of a carbonaceous binder such as coal tar pitch.          The so treated granules are ground to form fine powder of more than about 65% by weight -325 mesh powder, more preferably 75 to 85% by weight -325 mesh, which powder has a moisture (including acid) content of about 21% by weight, as a temporary binder, and which powder is compressed into shapes such as pellets of 0.5" diameter and 0.5" long under a pressure of 40,000 to 80,000 psi, and then granulated to obtain 6/20 mesh granules.  These granules are devolatilized, without charring, by directly heating to and at a temperature higher than the charring temperature in an oxygen-free atmosphere, and then activated by heating to and at a temperature higher than the devolatilizing temperature in an atmosphere containing a gaseous activating agent.  The overall yield of granular activated carbon is not less than about 22% by weight, dry basis, and the activated granules have a surface area of not less than about 900 m2/gram, an iodine number of not less than about 900, an ash content of not more than about 6% by weight, an abrasion number of not less than about 70, an apparent density of not less than about 0.48 gram/cc, and a Molasses number of not less than about 200; which properties make them suitable for use in water and waste water treat-ment and in other applications.
Patent CA-1072926-A (CA)
Title: Adjustable ladder support
Inventor: MAIR GEORGE R
IPC: E06C7/42
Filed: 1978-10-20
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE            A ladder support for imparting lateral stability to a ladder inlcudes a C-shaped channel member for each side leg of the ladder.  A first shoe member is slidably received and lockable longitudinally within each channel and is pivotally connected to a brace member which in turn is pivotally connected to a second shoe member which is also slidably receivable within the channel member.  The second shoe members may be positioned outwardly of the ladder on an appropriate support surface and the first shoe members locked in place.  The ladder is held by the support assemblies against any lateral forces which might tend to otherwise tip the ladder.  When not in use the shoe members are compactly stored within their corresponding channel members.
Patent CA-1059584-A (CA)
Title: General purpose digital logic monitor
Inventor: MANDULEY FLAVIO M
IPC: G06F11/00
Filed: 1978-12-20
Granted: 1979-07-31
Abstract: ABSTRACT OF THE DISCLOSURE       For servicing digital logic circuits, a hand-held monitor can be connected to an indefinite number of different sets of test points. Numerical and binary displays indicate the current state of the selected test points. To help the user understand what is being monitored, removable cards can be mounted adjacent the displays. Each of the cards has printed information relating to a different set of test points. An operator-controlled auxiliary clock is included to permit the operator to step the circuit being monitored through its operating sequence.
Patent CA-1100554-A (CA)
Inventor: GEBERTH JOHN D JR
IPC: B05B1/02
Filed: 1979-02-21
Granted: 1981-05-05
Abstract: ABSTRACT OF THE DISCLOSURE         An improved adjustable spray tip or nozzle is provided for spray guns and like devices which are adapted to hydraulically atomize and spray liquids such as paint.  The spray tip includes an adjustable valve stem which varies, by means of adjustable movement, the spray opening and thus the fan spray issuing from the spray tip.  The improvement includes providing a valve stem which is fracture resistant as well as erosion resistant.
Patent CA-1107979-A (CA)
Inventor: RUBLE ERNEST B
IPC: D06F37/40
Filed: 1979-02-22
Granted: 1981-09-01
Abstract: AUTOMATIC WASHER OPERATING APPARATUS                    ABSTRACT OF THE DISCLOSURE A simplified arrangement for alternately operating an agitator and a spinning clothes container in a laundry machine.  A container driving member and an agitator driving gear are both mounted rotatably and reciprocably on the agitator shaft, and a shifter selectively effects concurrent driving clutching engagement between the container and the container driving member and declutching of the gear from the shaft, and alternatively the shifter controls the container driving member to declutch from the clothes container and concurrently controls the driving gear to enter into clutching driving relation to the agitator shaft.  Improvements in mechanism include the shifter assembly, an anti-clash device for the gear clutch, an inertial spring clutch for the container driving member, an agitator spin drive snap ring and spring clutch, and load sensitive brake and clutch means for the clothes container.
Patent CA-1104177-A (CA)
Inventor: CUMMING RICHARD J
IPC: H01H3/16
Filed: 1979-03-26
Granted: 1981-06-30
Abstract: C-2,963                                            D-1,571 ELECTRICAL CONTACT ASSEMBLY     Abstract of the Disclosure:       The rear pillars of an automobile body carry power and ground contact assemblies which engage contact plates of the electric rear window defogger when the lift gate is closed.          The power and ground contact assemblies each consist of a plastic housing and a flat conductor strip which is stamped and bent to shape.  The housings for both assemblies are identical.  Both conductor strips comprise two elongated legs providing a depressible contact.  The conductor strip for the power contact assembly has a terminal portion for connection to a power lead.  The conductor strip for the ground contact assembly has a ground strap portion for connection to the pillar.