baber/WOPTO huggingface dataset:
Patent CA-1131979-A (CA)
Inventor: KASPER GORDON
IPC: F16K17/00
Filed: 1979-06-20
Granted: 1982-09-21
Abstract: Abstract Disclosed is a vacuum relief and access door assembly, for use on a duct downstream of a fire or control dampers, comprises a frame including a duct facing surface with a seal member thereon, a closure member having side edges in sealing engagement with the seal member, and cooperative retaining members mounted on the frame and closure member and resiliently urging the closure member into sealing engagement with the seal member, yielding to allow the closure member to displace toward the duct to allow air flow thereby for vacuum relief and returning into sealing engagement with the seal member said retaining members being releasable for removal of said closure member.
Patent CA-1119503-A (CA)
Inventor: ZIEGLER WILLIAM D
IPC: A47L15/42
Filed: 1979-07-13
Granted: 1982-03-09
Abstract: FOOD CUTTER FOR DISHWASHER     ABSTRACT OF THE DISCLOSURE          A food cutter is driven by a dishwasher pump located at the pump inlet to reduce the size of food particles rinsed from the dishware items washed.  The food cutter includes a wire element having a wound section encircling a thread formed on a rotary driven shaft with a cutter arm portion extending radially outwardly.  The wound section is frictionally re-strained at its opposite end, while the direction of wind of the wound section relative to the direction of pump rotation is such as to tend to result in radial deflection of the windings causing the cutter element to be loosened in its engagement with the thread and thereby allowing a slip clutch action to prevent jamming or breakage of the cutter element.  The frictional restraint of the end of the wound section is provided by a radially extending tab engaging a shoulder formed on the shaft to insure proper releasing action at a predetermined torque level.
Patent CA-1118993-A (CA)
Inventor: MABIE NORMAN
IPC: F41G1/38
Filed: 1979-08-28
Granted: 1982-03-02
Abstract: ABSTRACT OF THE DISCLOSURE          A gun telescope extender is an elongated tube with an unobstructed axial bore of uniform diameter and about six bellows folds between its eye end and its scope end.  The scope end of the tube includes outward projecting, integral, pull tabs for removing the extender from the telescopic lens.  The eye end of the tube is pre-formed with an oblique and slightly concave rim to fit the eye and seal it from light.  The eye end is free of outward flare.  The bellows compress evenly, without tilt or undue resistance when in use.
Patent CA-1140661-A (CA)
Inventor: WOOLHOUSE GEOFFREY R
IPC: H01L33/00
Filed: 1979-10-12
Granted: 1983-02-01
Abstract: ABSTRACT OF THE DISCLOSURE     Double heterostructure (Al,Ga)As wafers comprising layers of gallium arsenide and aluminum gallium arsenide on a metallized n-GaAs substrate are separated into individual devices for use as diode lasers.  In contrast to prior art techniques of mechanically cleaving the wafer in mutually orthogonal directions, the wafer is first separated into bars of diodes by a process which comprises (a) etching into the n-GaAs substrate with an anisotropic etchant to form V-grooves in the wafer and (b) mechanically cleaving into bars of diodes.  The cleaving may be done by prior art techniques using a knife, razor blade or tweezer edge or by attaching the side of the wafer opposite to the V-grooves to a flexible adhesive tape and rolling the assembly, such as over a tool of small radius.  For separating thin wafers (about 3 to 5 mils thick), prior to the anisotropic etching, the wafers are processed by forming an array of exposed lines on the n-side by photolithography to define the lasing ends of the diodes and etching through the exposed metallized portion to expose portions of the underlying N-GaAs.  The exposed portions of the wafer are then anisotropically etched to a distance of about 1 to 2 mils less than the total thickness of the wafer.  For separating thicker wafers (about 6 to 10 mils thick), prior to the anisotropic etching, the wafers are processed by forming channels of substantially parallel sidewalls about 1 to 4 mils deep into the surface of the n-GaAs substrate.  The wafer is then anisotropically etched to a depth sufficient to form V-grooves in the bottom of the channels.  Advant-ageously, such thicker wafers, which are cleaved only with great difficulty by prior art techniques, are less susceptible to breaking during handling and permit fabrication of shorter diode (cavity) length, which in turn is related to lower threshold current for device operation.  The diode bars may then, following passivation, be further cleaved into individual diodes by the prior art techniques of mechanically scribing and cleaving.  Processing in accordance with the invention improves length definition and uniformity, increases device yields and reduces striations on lasing facets, as compared with prior art techniques.
Patent CA-1127871-A (CA)
Title: Ceramic insulator for an exhaust gas  oxygen sensor
Inventor: SPRINGER JERRY L
IPC: G01N27/04
Filed: 1980-01-02
Granted: 1982-07-20
Abstract: ABSTRACT An improved exhaust gas oxygen sensor of the type adapted for installation in an exhaust conduit of an internal combustion engine.  The improved sensor is of the type employing a titania oxygen sensing element responsive to the partial pressure of oxygen in the exhaust gas. A ceramic insulator supports the titania oxygen sensing element and is of improved design.  Prior designs have contributed to cold-working of the electrode lead wires con-nected to the titania oxygen sensing element.  The improved insulator design has a pedestal located adjacent the passages in the insulator through which the lead wires pass for the purpose of minimizing cold-working of the lead wires.  This aids in preventing fracture of the wires during their use in a feedback fuel control system employing the oxygen sensor.
Patent CA-1128610-A (CA)
Inventor: ACHARI ACHYUTA
IPC: C04B35/00
Filed: 1980-01-07
Granted: 1982-07-27
Abstract: ABSTRACT OF THE INVENTION       An improved sensor having a ceramic element that undergoes a change in an electrical characteristic in response to a change in the partial pressure of oxygen in a mixture of gases to which the ceramic element is exposed.   Sensors of this type are used to detect the air-fuel ratio of mixtures supplied to internal combustion engines.  Prior art titania and zirconia sensors are characterized by little change in their respective electrical characteristics at operating temperatures below about 350°C.  A charge transfer material, platinum, has been applied to the ceramic element to facilitate or make possible the electron transfers required for sensor operation.  Loss of the platinum charge transfer material by vaporization, as the result of operation at normal elevated temperatures, has been discovered to be the cause of a loss of sensor response at low sensor operating temperatures.  The improved sensor has a charge transfer material comprised of an alloy of platinum and rhodium. This alloy, which preferably is 90% platinum and 10% rhodium, reduces the minimum temperature of operation for the sensor and substantially eliminates the afore-mentioned vaporization loss of the charge transfer material.
Patent CA-1137498-A (CA)
Title: Mercaptoacylpyrazolidinone carboxylic acid derivatives
Inventor: ROVNYAK GEORGE C
IPC: A61K31/415
Filed: 1980-02-20
Granted: 1982-12-14
Abstract: HA192 ABSTRACT Mercaptoacylpyrazolidinone Carboxylic Acid Derivatives Compounds having the formula , and basic salts thereof, whergin R1 is hydrogen, alkyl, aryl, arylalkyl or R5-?-, wherein R5 is alkyl or aryl R2 is hydrogen or alkyli; R3 is hydrogen, alkyl, aryl or arylalkyl; and R4 is hydrogen, alkyl, or arylalkyl; have useful hypotensive activity.
Patent CA-1149463-A (CA)
Title: Transmitter-receiver with automatic alternation  control
Inventor: DEMAN PIERRE
IPC: H04B1/64
Filed: 1980-04-11
Granted: 1983-07-05
Abstract: ABSTRACT OF THE DISCLOSURE Prior to each voice activity period, the transmitter supplies a digital preamble for coding the speech signal levels and during these periods high frequency signals modulated in substantially constant amplitude, but transmits nothing other than said preamble and said periods. On reception, a signal detector and logic elements control a switch to obtain only speech signals at the input of an attenuator. The preamble decoding circuit controls the attenuation value of the attenuator in order to resupply to the receiver output signals of the same relative level as those applied to the transmitter input.
Patent CA-1151224-A (CA)
Inventor: HARRISON PHILLIP L
IPC: G03B1/30
Filed: 1980-04-18
Granted: 1983-08-02
Abstract: ABSTRACT OF THE DISCLOSURE           A magnetic transport system includes a ferromagnetic belt which is used in conjunction with a magnetic ski to transport substrates.  The belt and ski cooperate to form a path of travel for the substrate.  Magnetic attraction between the belt and ski provides the normal force necessary for the high friction surfaced belt to drive the substrate along the path of travel.
Patent CA-1135605-A (CA)
Inventor: KAWAKAMI HEIJIRO
IPC: C23C22/73
Filed: 1980-04-29
Granted: 1982-11-16
Abstract: ABSTRACT OF THE DISCLOSURE     This invention discloses a method of vibrating coiled wires in a circumferential motion in a solution bath.  The method comprises the steps of suspending a set of coiled wires from a hook whose supporting portion extends parallel to a beam and which is secured to the underside of the beam supported on shock absorbing members, vibrating the beam and the hook by at least one rotary vibrator whose rotating shaft is placed on and parallel to the beam and whose direction of vibration varies continually and cyclically in the plane perpendicular to the beam, and transmitting the vibration of the rotary vibrator to the coiled wires through the hook so that the coiled wires sus-pended from the hook are rotated along the circumferential di-rection in the solution bath.
Patent CA-1196875-A (CA)
Inventor: SAXTON FLOYD G
IPC: F16D55/00
Filed: 1980-04-29
Granted: 1985-11-19
Abstract: QUICK CONNECT BRAKE COUPLING  Abstract of the Disclosure A quick connect coupling for connecting a threaded push-rod to a clevis of a brake actuating lever, the coupling comprises the combination of a collar having an internal bore threaded for engagement with the pushrod, a head at one end of the collar and a recess forming a shoulder spaced from the head, latching means carried by the clevis and biased into a first position extending internally of a bore provided to the clevis and latch displacing means carried by the collar adjacent to the shoulder.  During assembly the latch displacing means serves to displace the latching means upon axial insertion of the collar into the bore and the latching means returns to its first position and engages the shoulder provided to the collar to pre-vent withdrawal of the collar from the clevis bore.
Patent CA-1120286-A (CA)
Inventor: DJORUP ROBERT S
IPC: G01P5/12
Filed: 1980-05-20
Granted: 1982-03-23
Abstract: ABSTRACT                    DIRECTIONAL HEAT LOSS ANENOMETER TRANSDUCER         A directional heat loss anenometer transducer for sensing both the speed and direction of motion of a fluid, liquid or gas in which the transducer is immersed. The transducer is constructed of fine long cylindrical resistive conductors which are axially dis-posed about a central, cylindrical supporting body, wherein at least two conductors serve as a direction sensing pair which can also be used to determine impinging fluid speed. The sensing conductor pair are joined together by an adhesive connecting means thereby prevent-ing independent flow between the individual conductors of the conduct-or pair. The electrical conductors can be metallic or resistive films which are deposited on a cylindrical supporting body, or they may be individual wires of circular cross section. Each conductor is made of a material which exhibits a change in its electrical resistance as a function of temperature. Electrical connections are provided at each end of each conductor to permit each conductor to be separately excited by an electrical current. Typically, the transducer is oper-ated in air so as to provide a non-moving parts means for measuring a particular component of wind speed, and a pair of orthogonally mounted similar transducers can be used to determine sine and co-sine components of wind speed. Electrical representation of both speed and direction is obtained by the use of a differential amplifier which is connected between the joined conductor pair mid-point and the mid-point of a reference pair of resistors thereby forming a four arm resistance bridge. Direction sense is implicit in the sign of the differential amplifier output signal while speed is implicit in the mag-nitude of the differential amplifier output signal. The axis crossing, the point where direction sign changes polarity and the region where impinging flow is parallel to the long dimension of the conductor pair, is exceptionally smooth without discontinuities or irregularities.
Patent CA-1150129-A (CA)
Inventor: NOILES DOUGLAS G
IPC: A61L17/12
Filed: 1980-05-27
Granted: 1983-07-19
Abstract: Coherent Surgical Staple Array Abstract A coherent surgical-staple stack comprising a plurality of staples, bonded together in a parallel contiguous relationship by a biodegradable, absorbable plastic.
Patent CA-1141030-A (CA)
Inventor: SIMJIAN LUTHER G
Filed: 1980-08-21
Granted: 1983-02-08
Abstract: Abstract of the Disclosure. A metering device, such as a postage meter, can be updated by a code bearing means which is provided with a first discernible code and a second obscured code, for instance, magnetic code. A computer stores a third code in association with the first code, however, the third code is correlated with the second code. Upon obtaining the third code from the computer and providing the third code on the code bearing means, the code bearing means is inserted in the metering device for causing the metering device to be conditioned for updating responsive to said second  code and said third code on said code bearing means being in predetermined correlation.
Patent CA-1151718-A (CA)
Inventor: YOUNG ROBERT G
IPC: H01J61/30
Filed: 1980-09-23
Granted: 1983-08-09
Abstract: 18                47, 713 ABSTRACT OF THE DISCLOSURE A compact fluorescent lamp of high brightness is provided by a partition structure within the lamp that divides the tubular envelope into a plurality of intercon-nected sectors and also defines a core chamber that is not traversed by the discharge and is of predetermined size relative to the envelope.  The core chamber serves both as a conduit or passageway for the lead-in conductors of one of the electrodes and as a means for enhancing the effi-cacy of the lamp by displacing the discharge outwardly toward the envelope walls and thus minimizing the "light entrapment" effect deep within the envelope and the corner portions of the partition structure.  The use of the core chamber as a lead wire conduit permits the electrodes to be located at the same end or opposite ends of the enve-lope---thereby  providing  "odd-pass"  discharge  lamps  of single-ended construction or "even-pass" discharge lamps of double-ended construction that can be readily fabri-cated.
Patent CA-1146395-A (CA)
Inventor: COOK WILLIAM G
IPC: D21F1/06
Filed: 1980-09-24
Granted: 1983-05-17
Abstract: ATTENUATOR-HEADBOX CONNECTING              ABSTRACT OF THE DISCLOSURE           A system and method for delivering a pulp suspension to a headbox past an attenuator, the system and method insuring that no further disturbances are introduced into the pulp suspension after it passes the attenuator.  The system includes the attenuator, a conduit for delivering pulp suspension to flow past, and in operative communication with the attenuator; and a substantially linear pipe section, preferably having a quadrate cross-section for connecting the conduit from the attenuator to the headbox.  The linear pipe section is substantially shorter than the conduit.  The conduit is also substantially quadrate in cross-section, and connected to the conduit on the opposite side of the attenuator as the headbox is a transition.  The transition connects a pipe that is circular in cross-section to the conduit, the conduit and transition being disposed substantially in a straight line.  The linear pipe section and the conduit preferably are integral, being directly attachable to a header in the headbox.
Patent CA-1158348-A (CA)
Inventor: MEYER ROBERT
IPC: G09F9/30
Filed: 1980-10-15
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE       Electrolytic display cell comprising, between two electrodes of appropriate shapes, a liquid electrolyte containing metal ions, wherein said electrolyte comprises ions of a first metal and ions of a second metal, said first and second metals having similar redox potentials.      Process for increasing the storage life of the display in a liquid electrolyte cell containing ions of a first metal, wherein ions of a second metal are added, the first and second metals having similar redox potentials.
Patent CA-1148263-A (CA)
Inventor: BREWER JAMES A
IPC: G06F11/14
Filed: 1980-11-07
Granted: 1983-06-14
Abstract: Abstract of the Disclosure A high speed readback check of data transferred to a cyclic memory before the data source is lost.  The cyclic memory is organized into a number of data blocks, each interleaved with or simultaneously accessible with the other data blocks.  Thus, a long data record comprises several data blocks and therefore several cycles of the memory. A readback check of data transferred from a source into the memory is accomplished by writing data into one data block in a first cycle, writing data into another block on the second cycle while reading back the first data block and calculating a check character therefrom, continuing through the writing of the entire record, and reading the last block of written data and calculating the check character, and then comparing the calculated check character with a character calculated from the source data to detect any error before the source of the record is lost.
Patent CA-1136346-A (CA)
Inventor: MATSUURA KAZUO
IPC: C08F4/50
Filed: 1980-12-03
Granted: 1982-11-23
Abstract: ABSTRACT OF THE DISCLOSURE       A process for the homopolymerization or copolymerization of olefins is disclosed.  The process is carried out in the presence of a catalyst system comprising the combination of an organometallic compound with a component resulting from the mutual contact of (i) and inorganic magnesium compound of a spherical shape having an average particle size of from 1 to 100 microns; (ii) a compound represented by the formula A1X3-OR'R" (where X represents a halogen atom, and R' and R" represent a hydrocarbon residual group having 1 to 20 carbon atoms; and (iii) a titanium compound represented by the formula Ti(OR)4 (where R represents a hydrocarbon residual group having 1 to 20 carbon atoms).  The resulting polymers are provided with a spherical particle shape.
Patent CA-1150371-A (CA)
Inventor: OOMS WILLIAM J
IPC: H03K23/66
Filed: 1981-01-12
Granted: 1983-07-19
Abstract: Abstract An improved frequency synthesizer suitable for use in mobile and portable radio applications using multiple dual modulus prescalers to achieve high frequency opera-tion and low current drain.  A first high speed prescaler of limited size is used in conjunction with a second pre-scaler to avoid the use of one large high speed prescaler to attain high frequency operation.  Consequently, the frequency synthesizer can be constructed using only a minimum amount of high speed, high current drain logic thereby reducing costs and power consumption.
Patent CA-1150690-A (CA)
Inventor: HEISS JOHN F
IPC: B05B11/06
Filed: 1981-01-13
Granted: 1983-07-26
Abstract: Abstract of the Disclosure A powder dispenser suitable for use as a fire extinguisher and for dispensing particulated solids com-prising a container having flexible side walls and formed with an annular neck portion on which a dispensing head is mounted having an orifice terminating in a discharge nozzle.  A first conduit is connected at its upper end to the orifice of the dispensing head and extends downwardly within the container such that the lower inlet end thereof is disposed at a position spaced from the base of the container.  A second conduit is positioned in encircling relationship around the first conduit in substantially concentric relationship forming an annulus having its upper end disposed in communication with the upper end of the interior of the container and its lower end terminating at a position axially spaced upwardly from the inlet end of the first conduit at a controlled distance corres-ponding to about one-eighth to about one-half the diameter of the first conduit such that upon deflection of the side walls of the container such as by squeezing, a fluidi-zation of the powder adjacent to the inlet end of the first conduit is effected providing an optimum air to powder ratio which is discharged from the dispensing head in the form of a well defined substantially uniform dis-persion.
Patent CA-1147300-A (CA)
Inventor: INOUE TADASHI
IPC: B21J15/30
Filed: 1981-01-22
Granted: 1983-05-31
Abstract: ABSTRACT                     Riveter A riveter comprises a turnable jaw case actuating support member (140, 240, 340, 440  ) disposed  in a forward end portion of a frame main body (101 ) and mounted on a pivot for supporting a lever (120, 220, 320      ) on the frame main body (101    ), coupling means capable of locking the actuating support member  (140,  240, 340,  440      ) in a plurality of positions relative to the lever (120,  220, 320      ) and displaced from each other through a predetermined angle (.THETA.), a jaw case (160,    460    )  turnably supported by the actuating support member (140, 240, 340, 440) eccentrically of the pivot and reciprocally movable straight by reciprocal turn of the lever (120, 220,  320, ) through reciprocal turn of the  actuating support member (140, 240,  340,  440     ) connected thereto, and a jaw case tubular housing (170      ) turnably supported by the  forward  end portion of  the frame, main body (101, ) and  lockable in a plurality of positions angularly spaced from each other by the same angle as the angle of displacement (.THETA.).  The orientation of the jaw  case housing a jaw assembly and attached to the main body is easily changeable in accordance with the shape of the work to be riveted or with  other conditions, so that rivets are settable very efficiently with only one riveter for any work irrespective of its shape.
Patent CA-1152383-A (CA)
Inventor: ABEL ALAN S
IPC: B65G57/00
Filed: 1981-01-26
Granted: 1983-08-23
Abstract: IMPROVED CARGO RETAINER Abstract Of The Disclosure A cargo retainer, having a floor contacting member provided with an upwardly facing load bearing surface and an upright member secured adjacent to the rear end of the floor contacting member, is provided with a floor piercing element.  The floor piercing element is movably mounted adjacent to the juncture between the floor contacting member and the upright member and is movable relative to the cargo retainer between a position of relatively shallow floor piercing engagement and a position of substantially deeper floor piercing engagement.  A member projects from the cargo retainer adjacent to the juncture between the floor contacting member and the upright member in planar alignment with the floor piercing element and serves to drive the floor piercing element from a shallow engage-ment position to a deeper engagement position with rear-ward movement of the cargo retainer and thereby limit such movement in service.  Means are further provided on the cargo retainer for engagement with the floor piercing element to effect removal of the element with forward movement of the cargo retainer in service.  After forward movement of the cargo retainer in service, the floor pierc-ing element is driven to reestablish a piercing engagement with the floor.