baber/WOPTO huggingface dataset:
Patent CA-1341454-C (CA)
Title: Alpha-amidating enzyme compositions and processes for their production and use
Inventor: MEHTA NOZER M
IPC: C12N11/00
Filed: 1988-08-12
Granted: 2004-04-20
Abstract: Purified enzymatic compositions are provided having alpha-amidating enzymes capable of catalyzing the conversion of a peptidyl compound having a C-terminal glycine residue to a corresponding peptidyl amide having an amino group in place of the C-terminal glycine. The purified compositions have specific activities above 25mU per mg protein and are sufficiently free of proteases to allow effective catalysis of even peptidyl compounds having L-amino acids. Biologically important alpha-amidated products such as calcitonin and other regulatory hormones are efficiently produced using the alpha-amidation reaction catalyzed by the enzymes. Purification by size exclusion chromatography in combination with strong anion exchange chromatography results in homogeneous enzyme species which are used to prepare antibodies specific for the alpha-amidating enzyme. A gene capable of expressing the alpha-amidating enzyme is ligated into an expression vector and transformed into a host cell capable of expressing the gene.
Patent CA-1277701-C (CA)
Title: Method and apparatus for stabilizing the spectral characteristics of a semiconductor laser diode
Inventor: RICHARDSON BRUCE A
IPC: H01S5/14
Filed: 1988-09-01
Granted: 1990-12-11
Abstract: METHOD AND APPARATUS FOR STABILIZING THE SPECTRAL   CHARACTERISTICS OF A SEMICONDUCTOR LASER DIODE Abstract of the Disclosure In a method and apparatus for stabilizing the emission spectrum of a semiconductor laser diode, an external optical cavity is coupled to the laser diode to couple light from an active region of the laser diode to the external cavity and from the external cavity to the active region of the laser diode.  The phase of light coupled from the external cavity to the active region of the laser diode is dithered about a phase operating point at a dither frequency. A component of the forward voltage across the laser at the dither frequency is sensed and a feedback signal indicative of the amplitude of said component of the forward voltage and the phase of said component of the forward voltage relative to the phase of the dither is generated.  The phase operating point is changed in response to the feedback signal to minimize the amplitude of said component of the forward voltage.  The method and apparatus are useful for stabilization of laser diodes used in high performance optical communications systems.
Patent CA-1318720-C (CA)
Title: Control of suspension density using radiation source
Inventor: DEWITZ THOMAS S
IPC: G01F1/74
Filed: 1988-09-16
Granted: 1993-06-01
Abstract: A B S T R A C T    CONTROL OF SUSPENSION DENSITY USING RADIATION SOURCE      A method and apparatus for controlling the suspension density directly, and the mass flow rate indirectly, of a particulate solids and gas mixture transported to a reactor using a radiation source and detector.     T7.T8027
Patent CA-1296489-C (CA)
Title: Absorbent article having cantilevered cuff members
Inventor: BLANEY TED L
IPC: A61F13/15
Filed: 1988-09-22
Granted: 1992-03-03
Abstract: ABSORBENT ARTICLE HAVING CANTILEVERED CUFF MEMBERS                   ABSTRACT      A  disposable absorbent article such as a diaper having an outer covering layer comprising a liquid pervious topsheet and a liquid impervious backsheet, an absorbent core encased in the outer covering layer, and at least one cuff member extending outwardly from and along an edge of the absorbent core. The cuff member comprises an upper layer, a base layer, a cantilever flap interposed between the upper layer and the base layer and having a fixed edge and a distal edge, and gathering means such as a plurality of elastic members secured to the cantilever flap. The cuff member enhances containment and fit of the absorbent article and minimizes cuff roll out and collapse during use.
Patent CA-1339164-C (CA)
Title: Polyesters having improved impact strength
Inventor: O'ROURKE MICHAEL WILLIAM
IPC: C08L67/02
Filed: 1988-09-29
Granted: 1997-07-29
Abstract: A polyester composition and method having improved unnotched Izod impact strength in which the polyester matrix is blended with an EPDM interpolymer grafted with an ester of acrylic or methacrylic acid and cross-linked with a diamine or diacid or its anhydride before or preferably after blending.
Patent CA-1324890-C (CA)
Inventor: CARLISLE BILLY M JR
IPC: F25B43/00
Filed: 1988-12-21
Granted: 1993-12-07
Abstract: ABSTRACT OF THE DISCLOSURE    A universal accumulator for utilization in an automotive air conditioning system.  An inlet fitting and an outlet fitting are connected to the top of the accumulator housing.  The adjustable connection of the outlet fitting to approximately the center of the housing top permits the variable positioning of the outlet port relative to the inlet port and utilization of the accumula-tor in a wide variety of automobile applications.  A method for replacing an accumulator with the universal accumulator of the present invention is also disclosed.
Patent CA-1316199-C (CA)
Inventor: IWASA TADANOBU
IPC: B60J1/02
Filed: 1989-01-13
Granted: 1993-04-13
Abstract: Abstract of the Disclosure This invention is directed to a window frame rubber molding for an automobile, whose main body incorporates an automobile body flange retaining groove and a glass retaining groove opening in the mutually opposite directions and possessing an approximately S-shaped cross section.  The flange retaining groove is provided in the bottom wall thereof with a strand retaining groove converged in the direction of the opening thereof and the strand retaining groove has fitted therein a strand impregnated with   rustproofing agents.
Patent CA-1326662-C (CA)
Inventor: MIZUSHIMA YUTAKA
IPC: C07J5/00
Filed: 1989-01-18
Granted: 1994-02-01
Abstract: ABSTRACT   11.alpha.,17.alpha.,21-Trihydroxy-1,4-pregnadiene-3,20-dione 21-[(E,E)-3,7,11-trimethyl-2,6,10-dodecatrienoate] of the formula   an antiinflammatory composition thereof and a method for the production thereof. 11.beta.,17.alpha.,21-Trihydroxy-1,4-pregnadiene-3,20-dione 21-[(E,E)-3,7,11-trimethyl-2,6,10-dodecatrienoate] of the present invention exhibits remarkably excellent antiinflammatory action and besides, displays reduced side effects and can be produced in high selectivity and good yield and conveniently.
Patent CA-1331149-C (CA)
Inventor: HOLTERMANN THEODORE J
IPC: F02B33/04
Filed: 1989-01-27
Granted: 1994-08-02
Abstract: ABSTRACT OF THE DISCLOSURE               An internal combustion engine comprising a crankcase, cylinder, a transfer passage communicating between the crankcase and the cylinder and including a first point which is the lowest point in the transfer passage and at which the transfer passage has a first cross-sectional area, and a second point which is spaced from the first point and at which the transfer passage has a second cross-sectional area less than the first cross-sectional area, whereby air flow through the transfer passage establishes a static pressure differential between the first and second points, a sump communicating with the transfer passage at the first point, and a conduit utilizing the static pressure differential for pumping fluid from the sump to the transfer passage.
Patent CA-1337656-C (CA)
Inventor: JUNIUS MARTINA
IPC: C07F9/10
Filed: 1989-02-09
Granted: 1995-11-28
Abstract: The present invention provides phospholipase substrates of the general formula:-                   (I) or                       (II) wherein A is an alkylene or alkenylene radical contain-ing up to 16 carbon atoms, R is a hydrogen atom or an alkyl, alkenyl or acyl radical containing up to 20 carbon atoms or an optionally alkyl-substituted aryl or aralkyl radical containing up to 8 carbon atoms in the alkyl moiety, X is the residue of an aromatic hydroxy or thiol compound and each Y, independently of one another, is an oxygen or sulphur atom and Z is -SO3 ? or a radical of the general formula:-  wherein R1 can be a hydrogen atom or a radical of the general formula -(CH2)nR?, in which n is 2, 3 or 4 and R2 is a hydrogen atom or a methyl radical, or is an inositol or serine (-CH2-CH(NH2)-COOH) or glycerol residue.      The present invention also provides a process for the optical determination of phospholipases using these substrates, as well as a reagent containing them.
Patent CA-1297161-C (CA)
Title: Pulse train relay
Inventor: SALEEBY ROBERT W
IPC: H04L25/08
Filed: 1989-03-01
Granted: 1992-03-10
Abstract: A B S T R A C T      A pulse train relay for relaying pulses of duration not exceeding a maximum value      , the relay being characterized by the fact that it comprises a receiver     having an input suitable for picking up said pulses of a train, and an output     suitable for delivering a signal as a function of each picked-up pulse, a transmitter     having a transmission-feeding first input    , a transmission-controlling second input    , and a transmission output    , first means     for connecting the output of said receiver to the transmission-feeding input of said transmitter, and second means suitable for delivering a control pulse       starting on reception of a pulse by said receiver and continuing for a duration       which is not less than the maximum duration of said pulses in said train, said second means connecting the output of said receiver to the transmission-controlling input of said transmitter.  The relay is applicable for relaying pulse trains from relay-to-relay without interference from interference impulses.
Patent CA-1317650-C (CA)
Title: Splice case
Inventor: JERVIS JAMES E
IPC: H02G3/08
Filed: 1989-04-27
Granted: 1993-05-11
Abstract: MP1258-USl ABSTRACT                      Splice Case A splice case for a telecommunications cable splice comprises first and second parts that are held together by springs that function also to deform surfaces of the parts to put a sealing material therein under compression.  The splice case may contain a conductor organizer.
Patent CA-1336663-C (CA)
Inventor: ZUEST HARRY
IPC: F16L55/1645
Filed: 1989-05-11
Granted: 1995-08-15
Abstract: According to the process, in a pipe to be lined, is firstly applied an insulating intermediate layer and to the latter is applied the mechanically and chemically stable layer to be sealed.  For the sealing resin system, the inter-mediate layer forms the thermally and chemically correct substrate to which, despite dirt and wet in the sewer pipe, the desired coating can be applied in such a way that correct hardening is possible and the service life corresponds to the material used.            In an also preferred manner, the process provides for the direct application of a resin layer to the inner face of the pipe to be lined.  For eliminating the moisture, the resin system component reacting with the water is sprayed onto the pipe inner face, so that the water is bound or combined.  The resin mixture is then applied by a centrifugal process.  Optionally it is possible to apply a final coating with a harder resin system and greater mechanical strength to the resin coating already formed, the lower, first resin coating offering the correct medium for a more sensitive resin system, such as e.g. an epoxy resin.
Patent CA-1333482-C (CA)
Title: Lubricating oil compositions and concentrates
Inventor: RIPPLE DAVID E
IPC: C10N10/06
Filed: 1989-05-24
Granted: 1994-12-13
Abstract: A   lubricating  oil  formulation  is  described which  is  useful  in  internal combustion engines.  More particularly,  lubricating  oil compositions for internal combustion  engines  are  described  with  comprise (A) a major  amount  of oil of lubricating viscosity, and minor amounts  of  (B)  at least one carboxylic derivative com-position  produced by reacting (B-1) at least one substi-tuted succinic acylating agent with (B-2) from one equiv-alent up  to  about 2 moles, per equivalent of acylating agent,  of  at  least one amine compound characterized by the  presence  within  its  structure of at least one HN< group,  and  wherein  said substituted succinic acylating agent  consists of substituent groups and succinic groups wherein  the  substituent groups are derived from a poly-alkene,  said  polyalkene  being  characterized  by an Mn value  of  about 1300 to about 5000 and an Mw/Mn value of about  1.5  to  about 4.5,  said  acylating agents being characterized  by  the presence within their structure of an  average  of  at  least  1.3  succinic groups for each equivalent  weight  of  substituent  groups, (C) at least one  basic  alkali  metal  salt of sulfonic or carboxylic acid,  and (D) at least one metal salt of a dihydrocarbyl dithiophosphoric  acid wherein (D-1) the dithiophosphoric acid  is  prepared  by  reacting  phosphorus pentasulfide with  an  alcohol  mixture  comprising  at  least 10 mole percent  of  isopropyl  alcohol, secondary butyl alcohol, or  a  mixture of isopropyl and secondary butyl alcohols, and  at  least one  primary aliphatic alcohol containing from  about  3  to  about  13 carbon atoms, and (D-2) the metal  is  a Group II metal, aluminum, tin, iron, cobalt, lead,  molybdenum,  manganese, nickel or copper.  The oil compositions   also   may   contain   (E)  at  least  one carboxylic  ester  derivative  composition, and/or (F) at least  one  neutral or basic alkaline earth metal salt of at  least one acidic organic compound and/or (G) at least one  partial  fatty  acid  ester of a polyhydric alcohol. In  one  embodiment,  the oil compositions of the present invention   contain   the   above  additives  in  amounts sufficient  to enable the oil to meet all the performance requirements  of API Service Classification identified as "SG",  and  in another embodiment the oil compositions of the  invention will contain the above additives and other additives   described  in  this  application  in  amounts sufficient  to enable the oils to satisfy the requirement of the API Service Classification identified as "CE".
Patent CA-1337963-C (CA)
Inventor: JENSEN TOR ANDERS
IPC: B21C37/12
Filed: 1989-05-24
Granted: 1996-01-23
Abstract: Corrugated,  helically  formed  lock-seam  tubing  is formed in a machine wherein clinching rollers for closing the lock-seam of the tubing are shaped so that the lock-seam  is displaced radially with respect  to the circum-ference  of  helically  wound  strip  defining  the  tubing, during the formation of the lock-seam, whereby the lock-seam  is  located  at  the crest of a helical  corrugation formed in the wall of the finished tubing.
Patent CA-1331256-C (CA)
Title: Combination chinstrap-napestrap assembly for helmet
Inventor: AILEO JACKSON A
IPC: A42B3/08
Filed: 1989-06-06
Granted: 1994-08-09
Abstract: Abstract of the Disclosure A one-piece chinstrap-napestrap assembly for a helmet in which a pair of napestraps secured to the nape portion of the helmet interior at laterally spaced locations extend around the lower periphery of the helmet, crossing each other, and pass outwardly through slots formed in the front of the helmet to receive the ends of an adjustable chinstrap.  Adjustment of the chinstrap at the front of the assembly produces a simul-taneous adjustment of the crossing napestrap portions at the rear of the assembly without the necessity for independent adjustment of the latter strap portions.  A padded napestrap retainer secured by straps to the same locations on the nape portion of the helmet is formed with intersecting passages for receiving the crossing strap portions.  The retainer reduces chafing and urges the crossing napestrap portions toward the rear of the helmet when the chinstrap is released to facilitate donning and doffing.
Patent CA-1317455-C (CA)
Title: Slide-gate pouring appliance for ladles and similar devices
Inventor: FOGLIO SALVATORE
IPC: B22D41/40
Filed: 1989-06-08
Granted: 1993-05-11
Abstract: ABSTRACT OF THE DISCLOSURE:           Slide-gate pouring device comprising a first metal frame, solid with the bottom of a ladle, and supporting a first fixed holed refractory plate, a second removable metal frame, hanging with a clearance from the first metal frame and supporting a pair of fixed guides on which, through complementary guides there runs, and a third sliding metal frame supporting a second holed refractory plate, between a first working position in which the hole in the first fixed refractory plate is aligned with the hole in the second holed refractory plate, and a second working position in which the holes in the first fixed and the second refractory plate are out of axis and do not interfere with each other, in which the slide-gate pouring appliance has tightening means capable of pressing the second holed and the first fixed  hole  refractory  plates  against  one  another  and maintaining contact between them.   on each side of the second removable metal frame a container for springs is jointed to a lower end of a pair of link rods, upper ends of which are jointed to the first metal frame, and in which the springs apply a prod against an outer flange on the second removable metal frame and in which the axis of action of the springs is outside a straight line joining centers of pins articulating the link rods.
Patent CA-1285447-C (CA)
Inventor: HERMAN WES
IPC: A61B17/52
Filed: 1989-06-14
Granted: 1991-07-02
Abstract: An apparatus for removing metal fragments from the eye which consists of a magnetic probe.
Patent CA-1310676-C (CA)
Title: Coupling, in particular a quick-acting coupling for fluid conduits
Inventor: JAGGI CLAUDE
IPC: F16L37/28
Filed: 1989-07-07
Granted: 1992-11-24
Abstract: Abstract The coupling, preferably designed as a quick-acting coupling, has two sealing members (2, 3) in which the sealing surfaces are of a material having the same coefficient of thermal expansion, in particular a hard metal and having an exact clearance fit exactly inside each other without taper or pressure. There is thus no need for sealing rings, with the result that the coupling is maintenance and trouble-free and can be used for aggressive fluids as well as over a wide temperature range.            (Fig. 1).
Patent CA-1336517-C (CA)
Inventor: FRANKLIN RALPH
IPC: B01J31/02
Filed: 1989-08-25
Granted: 1995-08-01
Abstract: A process for the reduction of carbonyl compounds by an alkali or alkaline-earth metal borohydride in the presence of a phase transfer catalyst which is an N-benzyl-N,N-bis (2-hydroxethyl)cocoammonium halide.
Patent CA-1331276-C (CA)
Inventor: WATANABE HIROKAZU
IPC: A44B1/04
Filed: 1989-09-05
Granted: 1994-08-09
Abstract: ABSTRACT OF THE DISCLOSURES     A button collet is disclosed for use with a mating tack to form a button on a garment fabric.  The collet includes a cap having a dove-tail cavity, an insert member adhesively bonded in place therein, and a shank member or eyelet fixedly secured to the insert member.  The insert member has a plurality of clamping lugs which are crimped around a flanged peripheral edge of the shank and a plurality of peripheral notches in spaced apart relation alternating with the clamping lugs.
Patent CA-1334597-C (CA)
Inventor: O'NEILL MICHAEL W
IPC: A61N1/34
Filed: 1989-09-25
Granted: 1995-02-28
Abstract: Apparatus is disclosed for achieving improved dental anesthesia utilizing electronic stimulation applied through electrodes positioned inside the mouth of a patient.  Each electrode includes an insulating base of foam material with an adhesive at one side thereof to retain one end of an electrical lead in contact with an electrically conductive elastomer, which elastomer has a surrounding outer layer of adhesive for maintaining the elastomer positioned inside the mouth of a patient.  A transcutaneous nerve stimulator is utilized to generate the stimulating output signal, which signal may be a pulsed DC signal, an AC signal, a pulsed DC signal followed by an AC signal, or various other combinations of such signals, and the pulsed DC signal is offset to a fixed quiescent DC level above a zero volt reference when applied to the patient.  A threshold intensity for application of the stimulating output signal may be selected at the main unit of the apparatus by the operator, and increases in intensity of the stimulating output signal may be controlled remotely from the main unit by the patient, with the selected intensity being displayed at the main unit both digitally and by a bar graph.
Patent CA-1312182-C (CA)
Inventor: DEMEREST A EDWARD
IPC: B29C47/88
Filed: 1991-08-22
Granted: 1993-01-05
Abstract: As an article of manufacture, an ovenable shaped article formed of polyethylene terephthalate having a degree of crystallinity of at least 20%, said crystallinity being substantially uniform over the whole of the shaped article, and a process and apparatus for making same.
Patent CA-1337798-C (CA)
Inventor: SAKAI MASANORI
IPC: H04N1/21
Filed: 1993-02-19
Granted: 1995-12-26
Abstract: There is disclosed an image processing apparatus capable of reading image and synthesizing it with another standardized image signal supplied from outside and stored in a memory provided in the apparatus.  When an error occurs in the reproduction means, further storage in the image memory is inhibited in response to an instruction to start image reproduction until a manual confirmation is provided.  This enables an operator to determine whether reproduction should be restarted after clearance of an error condition.
Patent DK-156632-C (DK)
Inventor: HRASCHE HEINRICH
IPC: B62D25/20
Filed: 1986-03-10
Granted: 1990-02-05
Abstract: A floor plate (1) is particularly comprised of sections consisting preferably of drawn aluminium, aluminium alloy or plastic material. Said plate (1) is provided with grooves (2) intended to receive elastic bands (9). Furthermore, the groove (2) comprises at least an inlet throat corresponding to the shape of the band (9) or an undercut wherein a rib of the band is secured. The floor plates provided with elastic bands form a good antiskid floor and have noise absorption properties. The bands may be set in place from the top of the plates and respectively withdrawn upwardly when, despite a prolonged life time, this would be necessary. Said plates may be used on vehicles, boats and aircrafts, as well as in cold chambers, for landing ramps, take-off and landing decks for helicopters.
Patent DK-153222-C (DK)
Inventor: BLOMQVIST HAAKAN
IPC: B60K17/34
Filed: 1983-03-11
Granted: 1988-11-21
Abstract: The invention relates to a drive roller arrangement of the type in which it is possible to fold down a drive roller, freely mounted on a shaft (8), into engagement with a driven and a non-driven wheel on a vehicle. The invention makes this arrangement more compact because the roller shaft (8) mounted at the ends of the forearms (6) mounted in a elbow joint (7) on hydraulically operated (9) upper arms (5), mounted on a shaft (4) fixed to the vehicle, is caused in a retracted position to swing in towards the upper arms (5). This is done by providing a forearm (6) with a guide surface (10), which interacts with a deflector (11) placed outside the circular arc described by the elbow bearings (7) as it swings.
Patent DK-160586-C (DK)
Inventor: BARLEBO LARS MELLGREN
IPC: B04C1/00
Filed: 1985-04-10
Granted: 1991-09-09
Abstract: A heat exchanger has a cylindrical chamber (6) with a tangential peripheral gas inlet (1), an axial gas outlet (2), a material inlet (3) which introduces the material with a tangential velocity components in the same sense as that of the spiral gas flow at the point of introduction, and a material outlet (5).