baber/WOPTO huggingface dataset:
Patent CA-2041817-A1 (CA)
Title: Amino acid derivatives
Inventor: RADDATZ PETER
IPC: C07K14/81
Filed: 1991-05-03
Abstract: Abstract New amino acid derivatives of the formula I                                               I      X-W-CR1R2-CO-Y-NR3-CHR4-CR5-CH2-(CR6R7)r-Z-Het in which R1 to R7, W, X, Y, Z, r and Het have the meanings indicated in Patent Claim 1,  and the salts  thereof, inhibit the activity of human plasma renin.
Patent CA-2043508-A1 (CA)
Title: Integral self-closing dispensing closure for a tube
Inventor: SUN KAI
IPC: B65D47/20
Filed: 1991-05-29
Abstract: ABSTRACT    A self-closing membrane closure that is an integral part of the shoulder of a tube container provides for an efficient method for packaging and dispensing paste-like products.  The self-closing membrane is formed at the same time as the supporting shoulder by compression molding or a related technique.  This negates the need for any assembly and the potential for leakage.  In addition to the self-closing membrane closure, there can also be cap fitted over the membrane closure.     ?
Patent CA-2044502-A1 (CA)
Title: Cold start by-pass valve
Inventor: SPICUZZA CAROL A
IPC: F02M1/00
Filed: 1991-06-13
Abstract: COLD START BY-PASS VALVE              Abstract of the Disclosure A  cold  start  air  control  device  for  an internal combustion engine of the type having an air delivery  system  in which  the  delivery  of air  to  a vacuum generating manifold is controlled by a throttle valve  and  a  by-pass  valve  and  parallel  with  the throttle  valve  includes  a  casing that  defines  a passageway in parallel with the throttle valve and the by-pass  valve  and  which  has  a  cross-sectional  area greater than that of the by-pass valve so as to offer a less restricted air flow path than that offered by the by-pass valve.   The passageway provides communication between the manifold  and  atmosphere  and  a valve  is disposed within the passageway for opening and closing the  passageway  in  response  to  the  vacuum  level generated by the manifold.
Patent CA-2046022-A1 (CA)
Inventor: BALEMBOY CHRISTOPHE
IPC: F16B1/00
Filed: 1991-07-02
Abstract: ABSTRACT OF THE DISCLOSURE Device   for  linking  two objects,  one  of  these objects  (1)  bearing sections  of  mobile bayonets  (3) connected  by connecting rods  (4) to enable them  to be controlled simultaneously.  The other object bears fixed bayonet  sections.   Mobile  bayonet  sections  (3)  are preferably composed  of two concentric rings (7) and (9) connected  by  a  freeable  ratchet mechanism  (12)  for breaking   up   the   movement into  one   phase   for establishing  the  link by  the bayonets  and one  wedge clamping  phase. The  rotation of  the bayonets  is only authorized  if the  action of a  locking system  (20) is interrupted.    Application   for   the  linking   of  portions   of aeronautical, space or submarine vehicles.     SP 6271.69 JCI
Patent CA-2046803-A1 (CA)
Inventor: MOREL MICHEL
IPC: B21B37/26
Filed: 1991-07-11
Abstract: L'invention a pour objet un procédé de laminage d'un produit plat (5) par passes successives dans un laminoir réversible, alternativement dans un sens puis dans l'autre.      Selon l'invention, le produit (5) ayant une épaisseur brute (e0) sensiblement uniforme, on donne au cylindre (2, 2'), pour la première passe de démarrage (P1), un écartement (e1) inférieur à (e2) déterminant un angle d'attaque (A1) suffisamment réduit pour éviter un refus d'engagement et l'on diminue, au cours de cette première passe (P1), l'écartement des cylindres (2, 2') jusqu'à une valeur (e2) telle que la réduction totale d'épaisseur (e0 - e2) reste compatible avec la puissance et la force maximales du laminoir puis, pour la deuxième passe (P2), on donne aux cylindres de travail (2, 2') un écartement (e3) tel que l'angle d'attaque (A2) soit assez réduit pour éviter un refus d'engagement et l'on diminue l'écartement des cylindres, au cours de cette deuxième passe (P2), jusqu'à une valeur (e4) compatible avec la puissance et la force maximales du laminoir et ainsi de suite.        L'invention s'applique spécialement au laminage de tôles métalliques.
Patent CA-2047107-A1 (CA)
IPC: B29C55/02
Filed: 1991-07-16
Abstract: The present invention discloses a colored stretched polyethylene material which comprises an ultra-high-molecular-weight polyethylene having an intrinsic viscosity of 5-50 dl/g in decalin at 135°C and 0.001-50 parts by weight, per 100 parts by weight of the polyethylene, of a dye and/or a pigment and which has been stretched at a temperature lower than the melting point of the polyethylene, and a process for producing said polyethylene material. This colored stretched polyethylene material has a tensile modulus of 120 Gpa or more and a tensile strength of 1.5 GPa or more.
Patent CA-2047154-A1 (CA)
Title: Hair dye composition and its application method
Inventor: LORENZ HERIBERT
IPC: A61K8/33
Filed: 1991-07-16
Abstract: Hair dye composition for oxidative dyeing of human or animal hair containing as developing substances alone or in admixture with other developing substances, a hydroxytriaminopyrimidine, preferably 6-OH-2,4,5-triaminopyrimidine (4-OH-2,5,6-triaminopyrimidine) or 2-OH-4,5,6-triaminopyrimidine and/or a dihydroxydiaminopyrimidine, preferably 2,6-dihydroxy-4,5-diamino-pyrimidine or 4,6-dihydroxy-2,5-diaminopyrimidine.
Patent CA-2049410-A1 (CA)
Title: Liquid crystal device and process for producing the same
Inventor: TAKEUCHI KIYOFUMI
IPC: G02F1/139
Filed: 1991-08-16
Abstract: A liquid crystal device comprising a pair of substrates each having an electrode layer at least one of which is transparent, one or both of said substrates having formed thereon a network layer having a three-dimensional network structure which comprises a transparent solid substance, or one of said substrates having formed thereon said network layer with the other substrate having formed thereon an alignment layer, said pair of substrates being assembled in such a manner that said network layer of one substrate faces to the other network layer or the other substrate with or without an alignment layer in contact or with a small gap therebetween, and a liquid crystal material filled between said pair of substrates. The liquid crystal device exhibits improved hysteresis, high voltage holding ratio, and low power driving properties. The device can be produced without any restriction of conditions dependent on a combination of a liquid crystal material and a polymer.
Patent CA-2050232-A1 (CA)
IPC: D21F1/46
Filed: 1991-08-29
Abstract: Paper having an unique twill weave wiremark produced using a dandy roll in which the outer screen bears has a twill weave; the dandy roll and the papermaking process are also disclosed.
Patent CA-2050955-A1 (CA)
Inventor: SMITH BRYAN
IPC: B03B5/32
Filed: 1991-09-09
Abstract: An improved method and apparatus for removing grit from sewage comprising passing sewage containing grit along a channel 33, the sewage passing initially through a straight elongate portion 37 of constant width 35 and of length 39 sufficient to stabilise the flow and subsequently passing the sewage around a bend portion 41 having an angle of at least 10 degrees from the straight portion 37 and, downstream of the bend 41, removing the grit from the flow via a port 51 situated at the inside of the bend 41 at the base of the channel via a grit hopper 67 coupled to the port and coupled to a draw-off point 71 to remove the grit for disposal.
Patent CA-2051595-A1 (CA)
Title: Alkoxylation of carboxylated compounds
Inventor: KING STEPHEN W
IPC: C07C68/06
Filed: 1991-09-17
Abstract: ALKOXYLATION OF CARBOXYLATED COMPOUNDS                       Abstract This invention relates to a process for the alkoxylation of a carboxylated compound comprising contacting the carboxylated compound with an alkylene oxide in the presence of a mixed metal oxide catalyst or a modified bimetallic or polymetallic catalyst under conditions effective to alkoxylate the carboxylated compound.
Patent CA-2053220-A1 (CA)
Title: Writing instrument cap
Inventor: PETRILLO RICHARD J
IPC: B43K23/12
Filed: 1991-02-04
Abstract: A writing instrument safety cap (10) which can provide a substantially air-tight seal about a point or nib (32) carried by the barrel (30) of a writing instrument and which also includes passageways (40) to permit air to flow through internal regions of the cap. The passageways (40) would permit the passage of air if swallowed to prevent asphyxiation.
Patent CA-2053222-A1 (CA)
Title: Ground surface debris collection mat
Inventor: TOZER WARWICK
IPC: E01H1/12
Filed: 1990-05-02
Abstract: A mat formed of rectangular elements (4) having an outer border (6) surrounding a grid like formation (7). Elongate slots (12) are formed within the grid like formation (7). The mat, when disposed over a ground surface and moved thereover acts to collect debris such as leaves over which the mat passes to be passed through the slots and rest on the upper surface of the mat.
Patent CA-2056675-A1 (CA)
Inventor: WILCOX KARL M
IPC: B29C65/74
Filed: 1991-11-29
Abstract: SEAL BAR               Abstract of the Disclosure A seal bar for cutting and sealing plastic films about wrapped products comprises a laminated seal bar arrangement in which seal bar halves with a cutting knife,  heating  element  and  temperature  sensor therebetween are adhesively secured together with a heat cured epoxy.   The seal bar halves are preferably extruded  members.    A  fixed  temperature  controller maintains the operating temperature of the seal bar below the melting temperature of the adhesive epoxy to prevent delamination from occurring.
Patent CA-2057903-A1 (CA)
Title: Pulsating infrared radiation source for infrared spectroscopy
Inventor: KANSTAD SVEIN O
IPC: G01N21/35
Filed: 1990-05-22
Abstract: Pulsating infrared radiation source (50), which is so thin as to make its thermally stored energy less than the energy radiat-ed during each pulse. This makes the source cooled by its own heat emission. Such sources have thicknesses commensurate with the wavelengths of infrared radiation. To avoid interference effects, the source's optical thickness may be made to equal a multi-ple of half wavelengths of the desired radiation. With the source mounted in a housing (53), efficient radiative cooling is obtained using windows (54 and 55) to each side. This makes it possible to extract infrared radiation from either face of the source.
Patent CA-2061399-A1 (CA)
Inventor: WHITEHURST JONATHAN
IPC: H03F3/68
Filed: 1992-02-18
Abstract: ABSTRACT    IMPROVEMENTS IN OR RELATING TO SCANNING       ELECTROMAGNETIC BEAM SYSTEMS       A scanning electromagnetic beam system comprising a source of electromagnetic energy, a linear antenna array comprising a plurality of radiator elements, beamformer means via which energy is fed from the source to the radiator elements of the array, phase control means for selectively controlling the phase of signals fed from the source via the beamformer means to the elements of the array, thereby to effect successive TO and FRO scans of the beam across a predetermined angular sector, amplitude control means for selectively controlling the amplitude of signals fed from the source via the beamformer means to the elements of the array thereby to effect a predetermined amplitude distribution across the array and modulator means effective to change the centroid of the distribution in successive TO/FRO scan pairs.
Patent CA-2064741-A1 (CA)
Title: Air bag in an air bag unit
Inventor: TAKAMIYA TOSHIO
IPC: B60R21/16
Filed: 1990-05-30
Abstract: ABSTRACT OF THE DISCLOSURE    In an air bag (1) in an air bag unit, which is inflated by high pressure gas from an inflator operated in an emergency, it is formed by woven cloth in hollow weave where edges (2) are at least partially provided in single weave (6).  Because the air bag (1) is formed from woven cloth in hollow weave, the air bag (1) can be manufactured simply by forming the base cloth (5) of the air bag (1) in advance, which is made of woven cloth in hollow weave with its part in single weave (6) and by cutting the base cloth (5) at the single weave portion (6).  In this case, because a part of the desired portion can be woven in single weave and the other can be woven mechanically in hollow weave in cylindrical shape, the above base cloth (5) can be easily manufactured.  This eliminates such procedures as the procedure to cut a plurality of air bag combo-nents into the desired shape and the procedure to sew up the cut components by aligning the edges.  As the result, it is possible to reduce the steps of manu-facturing process to a great extent and to mechanize the air bag production.    Therefore, the productivity of the air bag can be extensively increased, and the air bag can be produced at lower cost.
Patent CA-2065259-A1 (CA)
Title: Threonine derived asymmetric chemical synthesis and intermediates for making antifungal compounds
Inventor: GIRIJAVALLABHAN VIYYOOR M
IPC: C07C317/16
Filed: 1990-08-30
Abstract: Intermediates of structural formula (III) or (Va) having an asymmetric center as indicated by an asterisk (*) and being substantially free of its opposite enantiomeric form, wherein Z represents O or NOP1; P1 is (a), (b), (c), H, alkyl, benzyl, substituted benzyl, alkoxy-substituted phenyl, alkyloxyalkyl, alkylthioalkyl or R'R''R''' silyl, R1 and R2 may be the same or different and each independently represents H, alkyl, phenyl, substituted phenyl or R1 and R2 together with the carbon to which they are attached represent the group (d), Y is O, S(O)p or (CRaRb);  and processes for making chemically pure, enantiomeric antifungal compounds using a threonine derived asymmetric chemical synthesis.
Patent CA-2067044-A1 (CA)
Title: Broadband conference system
Inventor: WEISS MANFRED
IPC: H04Q11/04
Filed: 1992-04-24
Abstract: Abstract Broadband Conference System A broadband conference system for having a video conference between a number of subscribers (S1, ..., S3) includes a switching unit (SU) to which those subscribers are coupled and a conference control unit (CCU) also coupled to that switching unit. To establish a conference, a subscriber first sets up a connection to the conference control unit and then transmits thereto the address of a second subscriber involved in the conference. The conference control unit then establishes a connection, over the switching unit, to the second subscriber. In a similar way other subscribers are added to the conference which is controlled and held over the thus established connections.            Fig. 1
Patent CA-2067487-A1 (CA)
Title: Optical receiver
Inventor: CLARKE DONALD E A
IPC: H04B10/66
Filed: 1990-10-18
Abstract: A network head-end station (1) is arranged to receive an upstream TDMA frame comprising interleaved optical signals from a plurality of terminations (2) connected to the head-end station (1) by a fibre network (3). The upstream TDMA frame includes a quiet phase during which none of the terminations transmit. The station (1) includes an opto-electronic receiver (4), a DC clamping circuit (10) for the opto-electronic receiver (4) and a clamping  pulse generator. The clamping pulse generator is arranged to generate a pulse at a predetermined time falling within the quiet phase to operate the DC clamping circuit to clamp signals received during the remainder of the TDMA frame to a DC reference level received during the quiet phase.
Patent CA-2074659-A1 (CA)
Title: Contactor floating magnet
Inventor: HOUCK THEODORE J III
IPC: H01H50/18
Filed: 1992-07-24
Abstract: 56,154 ABSTRACT OF THE DISCLOSURE    A floating magnet  mounted  in  an  electromagnetic  switch assembly.    The  magnet  has  confronting  faces  contacted  by confronting faces of a movable armature.  The movable armature is caused to contact the floating magnet by a magnetic field created when electrical current is applied to a current carrying coil.  The magnet has a mounting face opposite its confronting faces.   A mounting stem is anchored in the mounting face and extends through an aperture in a mounting base.  The stem laterally protrudes to prevent it from pulling through the aperture in the mounting base. The magnet rests on an energy absorbing medium, such as a spring or rubber.  The energy absorbing medium is disposed between the mounting face of the magnet and the mounting base.   The energy absorbing medium is resilient to provide magnet flotation.  Magnet flotation allows the magnet to float to align its confronting faces with those of the armature when the armature is caused to contact the magnet.
Patent CA-2074878-A1 (CA)
Inventor: FORQUY CHRISTIAN
IPC: C07C209/16
Filed: 1992-07-29
Abstract: Process for the preparation of aliphatic amines of general formula R-NH-R' where R is an aliphatic residue containing from 10 to 22 carbon atoms, and R' an aliphatic residue containing from 1 to 8 carbon atoms, which consists in reacting, in hydrogen under reduced pressure, an alkanol with a monoalkyl amine in the presence of a catalytic system consisting of a supported nickel catalyst and an alkali metal carbonate, more precisely potassium carbonate.
Patent CA-2077470-A1 (CA)
Title: Stop for rotational actuators
Inventor: POSNER HYMAN A
IPC: F16K5/06
Filed: 1992-09-03
Abstract: ABSTRACT   An apparatus for limiting the rotational travel of a shaft of a valve actuator comprising;           shaft engaging means, having detent means disposed therewith, connected to a shaft accessible from said valve actuator, stop means coupled to said actuator, wherein when said shaft engaging means rotates with said shaft, said detent means cooperates with said stop means, such that after a predetermined degree of rotational travel of the shaft, said detent means in cooperation with said stop means limits the rotational travel of said shaft of said valve actuator, such that the resultant force balance on said shaft engaging means and thus the shaft is substantially zero (for example there is no substantial side load on said shaft tending to deteriorate the life of the bearing and/or the seals).
Patent CA-2078930-A1 (CA)
Inventor: LEVIEN RAPHAEL L
IPC: H01L21/027
Filed: 1992-09-23
Abstract: A register mark and a system for bringing a pair of register marks into alignment is disclosed.  A first register mark comprises a plurality of dots of a first frequency, and a second register mark comprises a plurality of dots of a second, generally higher frequency.  When the first and second register marks are overlaid, an interference pattern resulting from the difference in frequency is observed.  The first and second register marks are in alignment when the interference pattern produces a maximum bright spot in the center of the register mark.  A small relative movement of the first and second register marks results in a larger relative  movement of center of the bright spot.  The position of the bright spot indicates which direction and how much to move the second register mark in order to achieve image registration.  In an alternate embodiment of the present invention, the frequency of dots in each register mark is warped with distance from the center of the mark.  The frequency of the dots of the second register mark is also warped with distance from the center, but overall has a generally higher frequency of dots as compared to the first register mark.  The interference pattern resulting from an overlay of the latter two register marks results in a bright spot which occurs unambiguously when the two register marks are in alignment.  At misalignments of more than one dot width, the bright spot breaks up so that the overlaid register marks may serve as quick visual check of proper alignment.
Patent CA-2080683-A1 (CA)
Inventor: SEDELMEIER GOTTFRIED
IPC: C07C69/92
Filed: 1992-10-15
Abstract: Substituted hydroquinone derivatives Abstract Compounds of formula I                           (I), wherein R4 is lower alkyl and either R1 is hydroxy,halogen, a group of the formula -P(=O)(R5)R6 (Ia),a group of the formula -P+(R7)(R8)R9X-(Ib) or a group of the formula -Si(R7)(R8)R9(Ic),M is methylene,R2 is hydrogen or a group of the formula (Id)   and R3 is hydrogen or halogen, or R1 is hydroxy or lower alkoxy, M is carbonyl, R2 is hydrogen and R3 is halogen, each of R5 and R6, independently of the other, is lower alkyl, lower alkoxy or N,N-di-lower alkylamino, or is benzyl, benzyloxy, phenyl or phenoxy, each of which is unsubstituted or mono- or di-substituted at the phenyl ring, wherein the substituents of the phenyl ring may be selected in each case from the group consisting of lower alkyl, lower alkoxy, nitro and halogen, each of R7, R8 and R9 independently of the others, is lower alkyl, unsubstituted or mono- or di-substituted phenyl, wherein the substituents of the phenyl ring may be selected in each case from the group consisting of lower alkyl, lower alkoxy, nitro and halogen, or is furyl, X- is the anion of a hydrohalic acid, a lower alkanesulfonic acid, a halo-lower alkanesulfonic acid or of a benzenesulfonic acid that is unsubstituted or mono-substituted by lower alkyl or by halogen, and wherein either Y is a direct bond and R10 is lower alkyl, allyl, cyano, lower alkanesulfonyl, halo-lower alkanesulfonyl, benzyl that is unsubstituted or mono- or di-substituted at the phenyl ring, wherein the substituents of the phenyl ring may be selected from the group consisting of lower alkyl, lower alkoxy, nitro and halogen, or is benzenesulfonyl that is unsubstituted or mono-substituted by lower alkyl or by halogen, or Y is a group of the formula-(C=O)- (Ie) or a group of the formula -(C=S)- (If) and R10 is halogen, lower alkyl, halo-lower alkyl, lower alkoxy, lower alkenyloxy, phenyl-lower alkenyloxy, halo-lower alkoxy or lower alkylthio, or is phenyl, phenoxy, phenylthio, benzyl, benzyloxy or benzylthio, each of which is unsubstituted or mono- or di-substituted at the phenyl ring, wherein the substituents of the phenyl ring may be selected in each case from the group consisting of lower alkyl, lower alkoxy, nitro and halogen, with the proviso that, in a compound I wherein R1 is a group Ib wherein each of R7, R8 and R9 is unsubstituted phenyl and X- is the bromide ion, M is methylene, R2 is hydrogen and R4 is methyl, R3 is other than hydrogen, and with the further proviso that, in a compound I wherein Rl is hydroxy, M is methylene, R2 is hydrogen and R4 is methyl or ethyl, R3 is other than hydrogen, can be used for the preparation of compounds of the formula              (XII), wherein R3 is halogen, R4 is lower alkyl and R10 and Y are as defined, and salts thereof. They are prepared in accordance with methods known per se.