baber/WOPTO huggingface dataset:
Patent CA-1195609-A (CA)
Inventor: CEGIELSKI EUGENE J
IPC: E21B33/037
Filed: 1983-03-28
Granted: 1985-10-22
Abstract: ANNULAR BLOWOUT PREVENTER     Abstract of the Disclosure An improved annular blowout preventer having a housing, an annular packer mounted in the housing, and a piston mounted in the housing for the application of an axial force to the annular packer;  the annular packer includes a resilient annulus with a circular series of rigid interengaging inserts embedded in its upper face with the inner ends of the inserts being thicker than the outer ends so that the inner ends of the inserts move inward as the resilient annulus is moved and interengaging side projections and recesses with shoulders to ensure substantially uniform inward movement of the inner ends of the inserts to a preselected inner support position for the resilient annulus.          Background Blowout preventers are used to control pressure within oil and gas wells during drilling and completion of the well.          Annular blowout preventers, the type to which the present invention relates, include a single annular resilient packing positioned within a body having means to cause the packing to be moved into sealing engagement with a portion of a pipe string extending through the preventer or against itself to seal a well when no pipe string extends through the preventer.    An annular blowout preventer is shown and described in U.S. Patent No. 3,572,627 to Jones et al.  The packer has a resilient annulus with a circular series of rigid inserts extending through the packer and having irising end flanges on both ends which move to provide end support of the resilient annulus when it is compressed radially inward by pistons.          These pistons are positioned around the resilient annulus to provide a direct inwardly directed radial force on the
Patent CA-1224257-A (CA)
Inventor: LENANDER BO
IPC: G01V3/11
Filed: 1983-03-30
Granted: 1987-07-14
Abstract: ABSTRACT OF THE DISCLOSURE     A device for detecting metallic objects in a material flow, comprising as sensing member a scanning coil consist-ing of a primary coil and, for example, two oppositely connected secondary windings arranged symmetrically around the primary winding so that the voltage induced in the secondary winding becomes zero as long as no conducting objects appear in the scanning area.  To elimiate irrele-vant signals from conducting objects in the vicinity of the scanning coil but not in the material flow or Prom weakly conducting objects in the material flow, the primary winding is fed with at least two alternating currents having different frequencies.  The corresponding secondary voltages are rectified in phase-controlled rectifiers, and in a calculating circuit the difference is derived between  the output of one rectifier voltage and the output of another rectifier multiplied by a constant factor which includes the relation between the frequencies of the corresponding alternating voltages.
Patent CA-1233539-A (CA)
Inventor: FANCHER PHILIP D
IPC: G08B13/24
Filed: 1983-04-05
Granted: 1988-03-01
Abstract: ABSTRACT           An article surveillance system employs a label or tag containing a non-linear impedance element, such as a semi-conductor diode, connected to a metal antenna loop configured to pick up two distinct radio frequency transmissions displaced on either side of a selected center frequency.  The non-linear impedance element connects opposing sides of a closed loop section at one end of the antenna to form a tuned tank circuit having a resonant frequency twice that of the selected center frequency.  A first transmitter generates a tone modulated radio frequency displaced on one side of the center frequency, and a second transmitter generates a continuous wave radio frequency displaced from the center frequency on the other side.  Both transmitter signals are fed separately to respective radiating antennae located adjacent to a surveillance area.  The antennae are chosen to produce circularly polarized transmission of both frequencies within the surveillance area.  The two different frequencies picked up by the transponder antenna are mixed by the non-linear impedance causing the tank circuit to resonate at a single higher frequency equal to their sun, which is double the center frequency; that resonant frequency is reradiated to be picked up by a receiver antenna or antennae suitably placed with respect to the surveillance zone to be detected by a very narrow band receiver responsive to the sum frequency.  The modulating tone signal is derived from the received signal to produce a gradually increasing charge that is compared against a preselected threshold level to trigger an alarm for a fixed interval only when the detected signal is of a sufficient strength and duration.
Patent CA-1211794-A (CA)
Inventor: DECONCHE ALAIN
IPC: H04L27/233
Filed: 1983-04-06
Granted: 1986-09-23
Abstract: ABSTRACT             This frequency correction method is used in the receiver of a data transmission system in which a syn-chronizing word is transmitted before the data.  It com-prises several steps during each of which there are calculated at least one pair of in-phase partial corre-lations Cr(k-l), Cr(k) and at least one pair of quad-rature partial correlations Ci(k-l), Ci(k).  The partial correlations of the order (k-l) and (k) in each step relate to two consecutive portions of the same length of a local synchronizing word and the samples of the received demodulated signal; the portions of a step p are greater than the portions of step p - l, the partial correlations of a step p are phase-corrected by taking account of the frequency correction calculated in step p - l.  A fre-quency deviation is calculated from the partial correla-tions of each step.  The final frequency correction to be retained is the sum of the frequency deviations calculated at the end of each step.
Patent CA-1183378-A (CA)
Inventor: MAHER ROBERT J
IPC: G03B27/16
Filed: 1983-04-21
Granted: 1985-03-05
Abstract: ABSTRACT OF THE DISCLOSURE   In a vacuum printer for the graphic arts having a housing, blanket and glass frames upon the housing adapted to receive a negative and a light sensitive sheet, and an upright mounted upon and projecting above the housing, an overhead multiple lamp mount console is adjustably spaced from the glass frame and comprises an upright carriage guidably mounted upon the upright. A top frame overlies the glass frame and is secured to the carriage assembly. First and second lamp assemblies of different wattages span and are movably mounted upon a pair of tracks on the top frame adjacent their respective ends. The lamp assemblies are adapted for alternate movements upon the tracks so as to centrally overlie the glass frame, adapted for selective light exposure of the sensitized sheet. A third lamp assembly of a different wattage spans and is movably mounted upon additional tracks underlying and secured to a second lamp assembly adapted for movement thereon to centrally overlie the glass frame.
Patent CA-1222659-A (CA)
Inventor: BOWLDS PATSY A
IPC: B32B9/04
Filed: 1983-04-28
Granted: 1987-06-09
Abstract: MODIFIED RESISTIVE LAYER IN THERMAL TRANSFER MEDIUM                    Abstract A thermal ribbon having a minute coating of graphite powder on the outer side of the resistive layer.  The improved electrical interface with print electrodes reduces ribbon and printhead damage.  The graphite also reduces friction and loosens material which builds-up at the printhead.
Patent CA-1214740-A (CA)
Inventor: BECKER ROBERT O
IPC: C12N5/09
Filed: 1983-05-11
Granted: 1986-12-02
Abstract: ABSTRACT OF THE INYENTION         Living mammalian cells are modified by subjecting them to the influence of the ions from a metal electrode, for example of silver, which is placed in contact with them and which is made electrically positive, and causing a low intensity direct current to flow through them.  The cells, which are relatively specialized, such as normal mammalian fibroblasts, assume a simpler, relatively unspecialized form and come to resemble hematopoetic or marrow-like cells.
Patent CA-1220448-A (CA)
Inventor: SMITH MORLEY L
IPC: A46B15/00
Filed: 1983-06-02
Granted: 1987-04-14
Abstract: ABSTRACT        A ferruleless paint brush comprises, a bristle knot having one end embedded in a rigid molded plastic head and a detachable handle. The handle is molded to a form which adapts it for engagement with the head which is likewise adapted such that the head and handle are releasably engagable. The head may be pivotally mounted on the handle. In addition the head may be in the form of a plurality of modules one or more of which may be employed to provide heads of different widths. A storage device for paint brushes is also provide. The storage device comprises; a receptacle having a chamber proportioned to receive at least a major portion of a paint brush head in a close-fitting relationship and a closure cap adapted to sealingly engage the receptacle to seal said chamber. A valve opens into the chamber through which conditioning fluid may be introduced into said chamber when said cap is sealed to said receptacle.
Patent CA-1184579-A (CA)
Inventor: MARTIN MERVIN G
IPC: A01C23/00
Filed: 1983-06-15
Granted: 1985-03-26
Abstract: ABSTRACT OF THE DISCLOSURE         The manure spreader includes a V-shaped hollow body having a longitudinally positioned impeller rotatively carried near its bottom.  The impeller blades are arranged in oppositely generated helices to urge the manure both from the rear of the body and from the front of the body toward an outlet gate which is positioned in the body intermediate its ends.  A rotary spinner is carried outwardly of the body in position to receive the effluent from the gate and suitable drive mechanism is provided to rotate the spinner at many times the rotative speed of the impeller.  The spinner and the impeller are rotated by a common drive and an adjustable deflector may be provided to easily vary the spray pattern from the spinner.
Patent CA-1209104-A (CA)
Inventor: SCHAEFER THOMAS J
IPC: B29B7/76
Filed: 1983-07-29
Granted: 1986-08-05
Abstract: PLURAL COMPONENT DISPENSING DEVICE                ABSTRACT OF THE DISCLOSURE     A plural component dispensing nozzle having internal passages for the introduction of at least two components for mixing and dispensing, and having a one piece mixing chamber with impingement orifices axially spaced along the chamber, and having formed as a part thereof sealing flanges to develop the fluid flow passages into the mixing chamber, and to provide an isolation seal between the plural components as well as fluid seals between the flow passages and the nozzle.
Patent CA-1211660-A (CA)
Inventor: MUZYCZKO THADDEUS M
IPC: B29C39/06
Filed: 1983-08-04
Granted: 1986-09-23
Abstract: IMPROVED ROLLER AND METHOD OF MAKING SAME                 Abstract of the Disclosure A commercial roller is disclosed which is hard, durable, corrosion resistant, abrasion resistant, patchable and easy to manufacure.  The roller which can be made in situ has a flake-reinforced curable system cover and can be used in various commercial settings such as in the table rolls of dewatering machines and in corona treatment devices.
Patent CA-1234724-A (CA)
Inventor: SCHWAB JAMES M
IPC: B65G69/00
Filed: 1983-08-22
Granted: 1988-04-05
Abstract: DOCK SHELTER WITH IMPROVED                  ADJUSTABLE HEAD PAD               Abstract of the Disclosure A dock shelter having an improved adjustable head pad.  The dock shelter borders a doorway in a dock wall and is adapted to be engaged by the rear end of a truck body to provide a weather seal around the doorway.          The dock shelter includes a pair of vertical pads that extend along the sides of the doorway and a vertically adjustable head pad that extends horizontally across the upper end of the doorway.  Cables are attached to the respective ends of the head pad and extend upwardly, are trained over a freely movable double pulley and are dead-ended on a fixed structure. The double pulley is connected through an extension spring to the support-ing structure, so that the force of the spring acts to urge the head pad upwardly and counterbalance the weight of the head pad.   The counterbalancing mechanism insures precise vertical adjustment of the head pad and prevents racking or cocking of the head pad during adjustment.
Patent CA-1213285-A (CA)
Inventor: KNOEFEL HARTMUT
IPC: C07C265/10
Filed: 1983-09-01
Granted: 1986-10-28
Abstract: CYCLOALIPHATIC DIISOCYANATES, OPTIONALLY     IN THE FORM OF ISOMERIC MIXTURES AND A PROCESS FOR THEIR PREPARATION              ABSTRACT OF THE DISCLOSURE        A diisocyanate corresponding to the formula   in which R1, R2, R3, m and n are as defined here-in is prepared by phosgenating a diamine corresponding to the formula   in which R1, R2, R3, m and n are as defined here-in.  The diisocyanate may contain C1-C12-monoalkyl-substituted methylene-bis-(cyclohexylisocyanate) isomers in an amount of up to 40 wt %.  These new diiso-cyanates which are liquid at room temperature and com-patible with polyols are particularly useful in the production of polyurethanes.
Patent CA-1219222-A (CA)
Title: Reverse osmosis apparatus
Inventor: RILEY ROBERT L
IPC: B01D61/02
Filed: 1983-10-17
Granted: 1987-03-17
Abstract: "REVERSE OSMOSIS APPARATUS"    ABSTRACT           A reverse osmosis module in which the semipermeable mem-brane comprising a microporous support reinforced on one side thereof with a backing material and the other side thereof having deposited thereon an ultra-thin film formed by cross-linking polyethyleneimine with a cross-linking agent such as isophthaloyl chloride and the back-ing for the membrane sandwich comprising a film of a polyethylene-terephthalate positioned between two layers of an epoxy-impregnated polyester may be utilized to concentrate or dewater aqueous solutions at elevated temperatures and pressures.  The module may be used at temperatures ranging from about 50° to about 95°C and pressures ranging from 400 to about 1200 psi to dewater aqueous sugar solutions, salt solutions, starch solutions, etc.
Patent CA-1215150-A (CA)
Inventor: JOHNSON LENNART B
IPC: H01R24/00
Filed: 1983-11-15
Granted: 1986-12-09
Abstract: ABSTRACT The present invention features a daughter board connector that has an arrangement to apply a translational force between the daughter board connector contacts and the backplane contacts without gripping the contacts. The daughter board is thus mounted on the backplane with a very low insertion force; there are high normal forces between the connector contacts and the backplane contacts after the translational force is applied, and because of the simple nature of the mechanism, a large number of contacts can be placed in a small area.  The arrangement to apply a translational force may comprise a slidable cam plate that moves the connector contacts in a direction parallel to the backplane, the connector having one or more guide pins for mating with holes on the backplane.  The cam plate moves free ends of daughter board contacts prior to mounting on the backplane, and the free ends are released to resiliently engage the backplane contacts.  The free ends are prestressed during manufacture and the backplane contacts are plated-through holes of the backplane.  In another embodiment the arrangement to apply a translational force is a cam that moves the connector relative to the backplane after the connector has been mounted on the backplane.
Patent CA-1208568-A (CA)
Inventor: DE COSTEMORE D ARC STEPHANE D
IPC: G11B23/50
Filed: 1983-11-25
Granted: 1986-07-29
Abstract: Abstract:       A disc or record cleaning device especially for laser-read discs having digital recordings is pro-vided in a disc storage container and incorporates a cleaning member with which the disc or record is brought into contact so as to clean the disc by a relative movement with respect to the cleaning mem-ber.  The cleaning member is a fibrous pad and is either fixed and the disc rotated or the disc is held stationary and the cleaning pad rotated or translated. The storage container is provided by sections movable relative to one another, either articulated about a common pivot or translatable.  The relative movement of the sections is coupled to move the disc and clean-ing member relatively for cleaning the disc.
Patent CA-1191560-A (CA)
Inventor: FUKUTA MASARU
IPC: H03K19/003
Filed: 1983-12-16
Granted: 1985-08-06
Abstract: SHORT-PROTECTED BUFFER CIRCUIT    Abstract A short-protected buffer circuit comprising a source current output transistor (T1, Fig. 3) and a sink current output transistor (T2) is capable of providing high output current at low output voltage.  A current-limiting bypass circuit, comprising two series-connected field effect transistors (T3 and T4) and a voltage reference (T5 and T6), limits the gate voltage on the source current output transistor (T1) and thus limits the output source current.         The circuit is compact and can be implemented in integrated circuit form.  The output voltage at which protection starts is independent of temperature and of process variations.
Patent CA-1224482-A (CA)
Inventor: SINGH BALWANT
IPC: C07C271/20
Filed: 1984-01-06
Granted: 1987-07-21
Abstract: MANUFACTURE OF URETHANES FROM    TERTIARY ARALKYL DIOLS               ABSTRACT OF THE DISCLOSURE           Production of tertiary aralkyl urethanes, such as tetramethyl xylylene diurethanes, by addition of cor-responding diols and carbamic acid esters at moderate tem-peratures and in the presence of acid catalyst.
Patent CA-1224789-A (CA)
Inventor: HUBSCHWERLEN CHRISTIAN
IPC: C07D307/32
Filed: 1984-02-06
Granted: 1987-07-28
Abstract: Abstract The manufacture of chiral aldehydes of the general formula   in which R3 and R4 each individually repre-sent hydrogen or lower alkyl or together represent lower alkylene, by reacting a lactone of the general formula                       II   in which R3 and R4 have the significance given above, with an alkali metal metaperiodate is described.        The chiral aldehydes of formula I can be used for the manufacture of chiral .beta.-lactams of the general formula                     III   in which R1 represents a readily cleavable protecting group, R2 represents benzyloxy-carbonylamino, azido, phthalimido or the group R5R6C=CR7-NH-,  wherein R5 repre-sents lower alkanoyl, lower alkoxycarbonyl or benzoyl, R6 represents hydrogen, lower alkyl, lower alkanoyl, lower alkoxycarbonyl or cyano and R7 represents hydrogen or lower alkyl, and R3 and R4 each individually represent hydrogen or lower alkyl or to-gether represent lower alkylene.        The chiral .beta.-lactams of formula III are intermediates for the manufacture of antimicrobially active .beta.-lactams.
Patent CA-1181526-A (CA)
Title: Digital circuit and method for the detection of call  progress tones in telephone systems
Inventor: MUNTER ERNST A
IPC: H04Q1/448
Filed: 1984-04-26
Granted: 1985-01-22
Abstract: A DIGITAL CIRCUIT AND METHOD FOR THE DETECTION OF CALL PROGRESS TONES IN TELEPHONE SYSTEMS            Abstract of the Disclosure A digital tone detector circuit characterizes the received PCM encoded signals as one of a plurality of call progress tones, voice signals or silence.  The PCM signal is linearized and normalized to a predetermined level in a digital automatic gain control circuit which also provides a signal corresponding to the level of the input signal.  A first circuit is responsive to the linear signal for providing a count of the zero level traversals incurred by the linear signal.  An envelope detector circuit is also responsive to the linear signal for providing a signal representing the envelope frequency thereof.  The composite results corresponding to the signal level, the zero-level traversal count, and the envelope frequency are translated in an evaluation logic circuit to provide an output signal representing the identity of the input PCM signal.  A microprocessor is responsive to a plurality of the output signals from the evaluation logic circuit for determining the cadence of the received PCM signals.
Patent CA-1235376-A (CA)
Inventor: TASSICKER OWEN J
IPC: B01D46/02
Filed: 1984-05-18
Granted: 1988-04-19
Abstract: Abstract of the Disclosure:            An apparatus especially suitable for filtering out a parti-culate material from a carrier fluid such as flue gases is disclosed herein.  This assembly utilizes a main vessel defining an interior compartment and having an inlet and separate outlet.  A number of filter assemblies are disposed within the vessel compartment and supported therein in spaced relationship with one another and with the vessel itself by means of a single tubular member which also serves as a discharge pipe between the filter assemblies and the vessel's outlet.
Patent CA-1215702-A (CA)
Inventor: SULLIVAN ALFRED B
IPC: C08L21/00
Filed: 1984-06-08
Granted: 1986-12-23
Abstract: DEODORIZED COMPOSITIONS                       ABSTRACT        Deodorized compositions are described comprising an intimate mixture of a malodorous sulfur containing compound and activated carbon.
Patent CA-1256629-A (CA)
Inventor: BEACHAM HARRY H
IPC: C08K5/53
Filed: 1984-06-21
Granted: 1989-06-27
Abstract: Abstract: ELECTRICALLY CONDUCTIVE PLASTICS AND PRODUCTION OF SAME Thermoplastic polymers, having antistatic proper-ties, are obtained by incorporating in the polymers a liquid mixture of trialkylphosphine oxides.
Patent CA-1215305-A (CA)
Inventor: SHIRAISHI HISASHI
IPC: G01N33/50
Filed: 1984-06-26
Granted: 1986-12-16
Abstract: AUTORADIOGRAPHIC GENE-SCREENING METHOD                ABSTRACT OF THE DISCLOSURE      An autoradiographic gene-screening method employing a hybridization process, which comprises:    (1) a step of transferring a portion of genetic clones cultured on a culture medium onto a filter to fix them thereonto;    (2) a step of hybridizing the genes of said clones fixed onto said filter with radioactively labeled probes;    (3) a step of obtaining two dimensional information on the location of the radioactively labeled substances on the filter which comprises placing said filter having been subjected to the hybridization and a stimulable phosphor sheet in layers for a given period of time to cause said stimulable phosphor sheet to absorb at least a portion of radiation energy emitted by the radioactively labeled substances on the filter, exciting said sheet with an electromagnetic wave to release the radiation energy stored in said sheet as stimulated emission, and detecting the stimulated emission to obtain a locational information on the radioactively labeled substances on the filter; and (4) a step of recovering the clones on the culture medium according to the obtained locational information.
Patent CA-1231896-A (CA)
Inventor: SHIMA KAZUHIRO
IPC: C07D498/04
Filed: 1984-08-03
Granted: 1988-01-26
Abstract: Shionogi & Co., Ltd.             Stable Antibacterial Lyophilizates Inventors: Kazuhiro Shima, Masayoshi Inoue, and Takayuki Tsukada.                       - Abstract -A lyophilized preparation of 7.beta.-difluoromethylthio-acetamido-7.alpha.-methoxy-3-[1-(2-hydroxyalkyl)-1H-tetrazol-5-yl]-thiomethyl-1-dethia-1-oxa-3-cephem-4-carboxylic acid alkali metal salt containing glucose, fructose, maltose, or an alkali metal salt of mineral acid or carboxylic acid as a stabilizer.
Patent CA-1248734-A (CA)
Inventor: DEFLIN MICHEL
IPC: B01J23/86
Filed: 1984-09-18
Granted: 1989-01-17
Abstract: A B S T R A C T      PROCESS OF THE PREPARATION OF A HYDROGEN-RICH GAS         The present invention relates to a process for the preparation of a hydrogen-rich gas, which is carried out by transforming a carbon monoxide-containing gas with steam.  The conversion is effected in the presence of a catalyst containing a spinel whose composition corresponds to the formula [CuxMn-(1-x)FeyCr(1-y)]O4 in which O < X < 1 and O < Y < 2.  Preferably an oxide or an alkali metal or of vanadium is added to the catalyst.  The process of invention applies to industrial pro-cesses for the preparation of hydrogen.