baber/WOPTO huggingface dataset:
Patent CA-2030218-C (CA)
Title: Process for preparing (+) - homopilopic acid
Inventor: KISE SHOICHI
IPC: C12P17/04
Filed: 1990-11-19
Granted: 1998-12-08
Abstract: A process for preparing (+)-homopilopic acid and the salts thereof which comprises hydrolyzing a mixture of (+)-homopilopic acid ester of the general formula(I):       wherein R1 denotes straight or branched C1-C10 hydrocarbon, and (-)-homopilopic acid ester of the general formula(II):       wherein R2 denotes straight or branched C1-C10 hydrocarbon, in the presence of a microorganism belonging to the genus Arthrobacter, Aspergillus, Escherichia, Cunninghamella, Xanthomonas, Candida, Pseudomonas, Serratia, Cellulomonas, Nocardia, Bacillus, Brevibacterium, Flavobacterium, Mycobacterium, Rhizomucor, Rhodotorula or Rhodococcus, or an enzyme composition extracted or disrupted from these microorganisms.
Patent CA-2031694-C (CA)
Title: Gas lubricated contact free sealing arrangement for a shaft
Inventor: VICTOR KARL-HEINZ
IPC: F16J15/34
Filed: 1990-12-06
Granted: 1999-04-06
Abstract: A gas lubricated contact free sealing arrangement for a shaft, including a seal housing, a stationary sealing ring positioned in the seal housing, and a rotatable sealing ring mounted to and rigidly connected with the shaft.  The two sealing rings work against each other at their sealing end surfaces with an intermediate lubricating gas.  The stationary sealing ring is separated during operation and under a predetermined operating pressure difference from a cylindrical section of the seal housing located towards the shaft by a functional annular gap which is sealed by a sealing O-ring of rubber or plastic positioned in an annular groove, which stationary sealing ring is pressed against the lubricating gas with a pressure determined by at least one pressure spring.  Both the rotatable sealing ring, and the stationary sealing ring are made of a hard sealing material, having a high heat conductivity, as well as a great modulus of elasticity and a high hardness.  The stationary sealing ring has a surface inertia, which is so large that the gap width of the functional annular gap is practically equal, during operation and at an operating pressure difference, to the corresponding construction-dependent annular assembly gap between the stationary sealing ring and the cylindrical section of the seal housing during all operating conditions and is smaller than 0.4 mm, preferably smaller than 0.3 mm.  The sealing O-ring is further constructed as a compensating and centering ring for the stationary sealing ring and, to this end, has a material hardness which is higher than the extrusion threshold of the material hardness at the given gap width and the predetermined operating pressure difference, and is smaller than a material hardness of 90 shore A in accordance with DIN 53 505.  The gas lubricated sealing arrangement is especially suited as a high pressure seal with a long service life.
Patent CA-2036064-C (CA)
Title: Telescopic auger
Inventor: KUZUB DANNY S
IPC: B65G33/18
Filed: 1991-02-11
Granted: 1994-03-01
Abstract: ABSTRACT OF THE DISCLOSURE TELESCOPIC AUGER           A telescopic auger includes a first drive tube and a second drive member coaxial with the drive tube and slidable inside the drive tube in telescopic manner.   A flight is attached to the drive tube in helical arrangement.  A second flight section is-attached to the drive member at an outer end only of the drive member with the second flight being threaded into the end of the first flight so that rotation of one relative  to  the  other  causes  the  length  of  the  threaded engagement to increase or decrease to allow telescopic adjust-ment of the length of the total auger flight.  This arrange-ment can be used in a bin sweep which allows the sweep to be adjusted in length to accommodate bins of different diameter. The sweep section is driven across the ground by a drive track at an outer end of the auger section.   The auger section is coupled to a main auger section which extends from the centre Or the bin outwardly to the exterior of the bin by a flexible or rotary joint which allows the  sweep section to rotate through 360° during operation.   The rotary joint is provided by a flexible auger core to which is attached a plurality of separate collars each carrying a helical flight section.  The total drive for the system can therefore be provided by a motor at an outer end of the main auger section.
Patent CA-2049435-C (CA)
Title: Lubricating compositions
Inventor: HARRISON JAMES J
IPC: C10N30/04
Filed: 1991-08-19
Granted: 2000-03-28
Abstract: Provided are lubricating oil compositions which contain (a) a mixture comprising an oil-soluble alkali metal compound and certain polyalkenyl succinimide or (b) alkali metal salts of said polyalkenyl succinimides.
Patent CA-2050967-C (CA)
Inventor: MOHR JUERGEN
IPC: C10L1/22
Filed: 1991-09-09
Granted: 2003-12-23
Abstract: Fuels for internal combus-tion engines or lubricants contain small amounts of polyisobutylaminoalcohols of the formulae Ia and Ib   where R is polyisobutyl having a number average molecular weight of 500 to 5,000 and in each of the two formulae one of the radicals X is OH and the other is the group   where the radicals R1 may be identical or different and are each hydrogen, alkyl, hydroxyalkyl or aminoalkyl which may be substituted by further hydroxyl- or amino-carrying alkyl radicals, or the two radicals R1 may form a nonaromatic ring.
Patent CA-2051354-C (CA)
Title: Method of protecting biological materials from reactions in the dry state
Inventor: WETTLAUFER SCOTT HUNT
IPC: A01C1/06
Filed: 1991-09-16
Granted: 1999-01-26
Abstract: A method is provided for protection of biological materials from the  stresses  of  air-drying  and  also  from  destructive reactions, such as oxidation and free-radical attack, which degrade the materials during long-term storage. The method involves drying the materials, which may contain potentially destructive agents such as free-radical generators or reducing sugars, in the presence of a vitrifying substance, and under conditions which allow the protective substance to become vitrified.
Patent CA-2055064-C (CA)
Title: Screening apparatus for paper making stock
Inventor: CHUPKA DAVID E
IPC: B01D29/01
Filed: 1991-11-06
Granted: 1999-03-23
Abstract: Apparatus for screening papermaking stock comprises two annular flat screening plates arranged in parallel spaced relation to form a screening chamber therebetween which is bounded on its outer periphery by a cylindrical wall, and wherein a rotor includes vane portions which extend into this screening chamber to agitate the stock so that particles of sufficiently small size can pass through the screening plates into annular compartments outside the screening plates from which they flow into a peripheral chamber having an outlet port.  The screening chamber includes an annular space which is surrounded by the accepts chamber and is radially beyond the vane portions of the rotor wherein reject material collects for discharge through an outlet tube which extends through the accepts chamber to the outside of the apparatus.  The apparatus as a whole comprises a main assembly which includes one of the screening plates and the rotor, and a subassembly which includes the other screening plate and can be removed from the main portion to expose the screening plates for replacement or other servicing.
Patent CA-2055202-C (CA)
Title: Snubber-bearing with combined elastomer laminates
Inventor: BYRNES FRANCIS E
IPC: B64C27/35
Filed: 1991-11-08
Granted: 1992-06-18
Abstract: A snubber set (30) for a helicopter rotor (10) is comprised of an inner race (44), an intermediate race (45), a preload plate (46), an inner portion (48) having alternating laminates of elastomer (52) and metal shims (54) which are spherically shaped, and an outer portion (50) having alternating laminates of elastomer (58) and metal shims (60) which are flat. The flat laminates (58) are comprised of a center portion (61) made from a high loss elastomer and a peripheral portion (62) made from a high shear strength elastomer.
Patent CA-2056608-C (CA)
Title: Tandem wheel and axle suspension
Inventor: JABLE ROGER D
IPC: B60G5/06
Filed: 1991-10-24
Granted: 2002-08-13
Abstract: In a tandem wheel and axle suspension for suspending a vehicle chassis, a flexible joint assembly for connecting the underside of each distal end of a fore-and-aft leaf spring equalizer beam to the subadjacent end of a transverse axle comprising a downwardly projecting spring anchor mounted on the underside of the distal end of the bottom leaf of the leaf spring, a load cushion formed of elastomeric material having an upwardly open socket in which tho projecting portion of the spring anchor is imbedded, and an axle bracket mounted on the subadjacent end of the axle having an upwardly open socket formation into which the load cushion is seated. An elastomeric rebound cushion is mounted over each distal end to prevent the spring anchor from disengaging the load cushion axle and is without upper torque rods.
Patent CA-2057300-C (CA)
Inventor: PRIMEAUX DUDLEY JOSEPH II
IPC: C08G18/65
Filed: 1991-12-09
Granted: 1997-04-22
Abstract: An  aliphatic  polyurea  elastomer  is  disclosed.    The elastomer comprises an  (A)  and a  (B)  component.   The  (A) component includes an aliphatic isocyanate.  The (B) component includes an amine terminated polyoxyalkylene polyol and a chain extender  including  an  aliphatic  spray  polyurea  elastomer comprising  an  (a)  component  which  includes  an  aliphatic isocyanate and a (b) component which includes (1) an amine terminated polyoxyalkylene polyol and (2)  a chain extender including cis-1,4-diaminocyclohexane,  isophoronediamine,  m-xylenediamine, 4,4'-methylenedicyclohexylamine, methanediamine, 1,4-diaminoethylcyclohexane   and   substituted   derivatives thereof.   Preferably, the chain extender includes cis-1,4-diaminocyclohexane, isophoronediamine or mixtures thereof.
Patent CA-2060003-C (CA)
Title: Missile guidance electronics assembly for portable guided missile launcher
Inventor: PHAN DZUNG V
IPC: F41F3/04
Filed: 1992-01-24
Granted: 1995-07-25
Abstract: A tube-launched, optically-tracked, wire-guided (TOW) portable guided missile system (10) includes a launch tube (16) mounted on a tripod (18)  or vehicle, and an opti-cal/thermal sighting and tracking assembly (22) mounted on and aligned with the launch tube (16).  The system operator (20) mechanically trains the assembly (22) to maintain a target  (38)  visually  centered  in  a reticle,  thereby establishing a line-of-sight (40) to the target (38).  The assembly (22) tracks the target (38) optically or thermal-ly, and feeds guidance signals to the missile (14) through a wire (46) to maintain the missile flight path coincident with the line-of-sight (40).  An improved missile guidance electronics unit (44) is environmentally sealed in a small housing (60) which removably fits into a compartment (52) in  the  sighting  and  tracking  assembly  (22),  thereby enabling the optical/thermal sighting and tracking elements (26,28) and guidance electronics (88) to be integrated into a compact, unitary assembly (22).
Patent CA-2060887-C (CA)
Title: Line shaft accumulation conveyor
Inventor: FULTZ WILLIAM A
IPC: B65G47/26
Filed: 1991-04-18
Granted: 1995-02-14
Abstract: A line shaft-driven accumulation conveyor (10) includes a plurality of intermediate shafts (24) which run parallel to the drive shaft (22) and are independently driven from the drive shaft (22), each of the intermediate shafts (24) driving a zone of conveyor rollers (16).
Patent CA-2062266-C (CA)
Title: Alkyl aromatic hydrocarbon dehydrogenation catalyst
Inventor: MURAKAMI AKIRA
IPC: C07C15/46
Filed: 1992-03-04
Granted: 2001-02-27
Abstract: In order to increase performances of an iron oxide-potassium oxide system catalyst to be used for an alkyl aromatic hydrocarbon dehydrogenation reaction in the presence of steam, there is provided an alkyl aromatic hydrocarbon dehydrogenation catalyst wherein a little amount of titanium oxide is added by the mixing and kneading method or by the preceding addition to iron oxide in the production of the iron oxide-potassium oxide system catalyst to be used for the alkyl aromatic hydrocarbon dehydrogenation reaction in the presence of steam. The iron oxide-potassium oxide system catalyst is allowed to contain a little amount of titanium oxide, whereby an activity can be remarkably increased, as well as a selectivity in the same conversion ratio can also be improved in the alkyl aromatic hydrocarbon dehydrogenation reaction, and further the obtained catalyst exhibits stable performances with time on stream.
Patent CA-2064129-C (CA)
Title: Car-mounted booster for plug-in connection with mobile telephone set
Inventor: HIRASAWA NAOKI
IPC: H04B1/38
Filed: 1992-03-26
Granted: 1997-03-04
Abstract: A car telephone included in a car telephone system and selectively operable in a car-mounted mode or in a portable mode.  A portable unit and a telephone antenna constitute a mobile car telephone set while a car antenna, a power amplifier unit, a curled cord, a connection unit constitute a car-mounted telephone together with the portable unit.  The car telephone operates in a unique manner in a car-mounted mode.  The power amplifier unit converts a received signal from a base station included in the system to an intermediate frequency (IF) signal by a receiving mixer and feeds the IF signal to the curled cord.  The IF signal is transferred to a demodulator included in the portable unit over a coaxial cable incorporated in the curled cord and the connection unit.  Therefore, the transmission loss of the signal to the portable unit particular to the coaxial cable is noticeably reduced, whereby the constants of the circuits included in the car telephone can be selected with unprecedented freedom.
Patent CA-2069108-C (CA)
Inventor: FRASER ALISTAIR
IPC: F21S8/00
Filed: 1990-09-21
Granted: 1999-07-13
Abstract: Procédé et appareil servant à créer des arcs-en-ciel primaires (4) et secondaires (4) dans un rideau de gouttelettes liquides (1) dans l'air. Les arcs-en-ciel (4) sont créés par la dispersion réfringente à l'intérieur des gouttelettes elles-mêmes, et sont visibles à partir de deux côtés opposés du rideau de gouttelettes (1). Le rideau de gouttelettes liquides est produit par un jet d'eau. Le dispositif décrit comprend une source de gouttelettes liquides (5). La source de lumière peut être une rangée de lumières (11) agencées de sorte que les rayons lumineux (12) semblent provenir d'un centre commun (13). La source de lumière peut également être une source de lumière collimatée (7) telle qu'un projecteur réfléchissant la lumière au moyen d'une surface conique (3) semblable à un miroir, ou bien une combinaison de ces sources de lumière. La source de lumière peut également être une seule source de lumière (15) ménagée dans un miroir réflecteur courbé et couvert (19).
Patent CA-2070334-C (CA)
Title: Tube cleaning tool
Inventor: SAXON GREGORY J
IPC: F28G1/02
Filed: 1992-06-03
Granted: 1997-04-15
Abstract: A tube cleaning tool for removal of hard deposits from the  interior wall  of  a  tube  has  a  cylindrical  body portion with an outer diameter, less than the inner diameter of the tube, a nose portion at one end and a tail portion at the other end, with a plurality of spaced freewheeling cutting wheels provided on the body portion which extend outwardly therefrom,  the cutting wheels  at  least partially contained within  the  confines  of  the  cylindrical  body  portion  and rotatable about an axis transverse the longitudinal axis of the cylindrical body portion.
Patent CA-2071653-C (CA)
Title: Method of preparing activated protein c
Inventor: PHILAPITSCH ANTON
IPC: A61K38/48
Filed: 1992-06-19
Granted: 1996-03-19
Abstract: To produce activated protein C, protein C is treated with plasmin. Activation is effected in a quick and simple manner. Contamination of the activated protein C with thrombin is avoided.
Patent CA-2076189-C (CA)
Title: Method and apparatus for variable frequency catv jamming
Inventor: BLAIS PIERRE
IPC: H04N7/16
Filed: 1992-08-14
Granted: 1998-08-25
Abstract: A method and apparatus for controlling the reception of selected channels to individual subscribers in a CATV system, that involves jamming each channel on a time divisional basis, to all of the subscribers who are not entitled to receive the channel being jammed.  A frequency generating means, capable of generating a variety of frequencies, generates an initial frequency that is similar in amplitude to the amplitude of a typical television channel's carrier wave frequency.  That generated frequency is compared to a reference frequency which would be suitable for jamming one of the channels to be jammed.  If the generated frequency is too high or too low, the frequency generating means generates a new frequency which is, respectively, either lower or higher than the initial frequency it generated.  If the new generated frequency is still higher or lower than the reference frequency, the frequency generating means generates another new frequency, which is respectively, either lower or higher than the previous generated frequency, but by a lesser amount than the amount by which the previous generated frequency differed from the frequency generated before it.  The generation of new frequencies continues until one of them is within a desired range of the reference frequency, the input to the frequency generating means which caused that frequency to be generated is then stored in memory.  The same procedure is used to obtain memorized inputs to the frequency generating means for generating frequencies to jam each channel to be controlled.  The memorized inputs are then sent on a time divisional basis to the frequency generating means, and the resulting generated jamming frequencies are transmitted on a time divisional basis to each of the subscribers who are not entitled to receive the channel they are jamming.  Then, in a cycle, after a period of time, the jamming of channels is interrupted for a small period of time during which the inputs to generate the jamming frequencies are recalculated using the same calculation method, and re-memorized, then the calculation process ceases and the jamming resumes.
Patent CA-2079449-C (CA)
Title: Automatic in-line reconstitution system
Inventor: SERTIC JAMES L
IPC: A61M5/14
Filed: 1992-02-24
Granted: 2001-12-25
Abstract: The present invention provides a system for automatically rec-onstituting a drug in-line and delivering the drug to a patient. Pursu-ant to the present invention, a system is provided that allows fluid en-try into a vial, that houses the drug to be reconstituted, with concur-rent air elimination. Mixing via different fluid entry levels is pro-vided. Due to the unique fluid flow path of the present invention reconstitution of the drug is ensured. The system, method, and appar-atus of the present invention can be utilized with a computer con-trolled pump. When so utilized, a completely automated procedure can be achieved.
Patent CA-2081200-C (CA)
Title: Self converging wide screen color picture tube system
Inventor: MILILI MARC
IPC: H01J29/76
Filed: 1991-05-10
Granted: 2001-12-18
Abstract: A self converging, widescreen color picture tube system includes a widescreen, in-line color picture tube having a funnel, an electron gun assembly (28) for three in-line electron beams located in a neck at one end of the picture tube, and a faceplate with a viewing screen at the other end. The picture tube has a wide aspect ratio. A self converging widescreen deflection yoke (40) for deflecting the electron beams in the wide aspect ratio picture tube includes horizontal and vertical deflection windings. The yoke (40) is located by an initial flare section of the funnel and positioned along the longitudinal axis of the picture tube to make the tube reference line and the yoke deflection plane substantially coincident. To achieve substantial horizontal astigmatism cor-rection at the extremes of the major axis of the wide viewing screen, the horizontal deflection winding is constructed to have a generally pincushion-shaped horizontal deflection field over the effective length of the field. The field is modified from that re-quired of the horizontal deflection field in a comparable self converging narrowscreen yoke. The modification is made in accord-ance with the differences in centerscreen slope angles and S-spacing.
Patent CA-2081670-C (CA)
Inventor: DAWSON JACQUELINE E
IPC: C12N1/20
Filed: 1991-05-02
Granted: 1997-10-14
Abstract: Nouvelle méthode permettant de cultiver diverses espèces pathogènes d'Ehrlichia telles que E. canis, E. risticii, E. sennetsu et E. phagocytophila ainsi que Neorickettsia helminthoeca dans une lignée cellulaire monocyte-macrophage DH82.
Patent CA-2083810-C (CA)
Inventor: TAYLOR WILLIAM H
IPC: G02B27/00
Filed: 1992-11-25
Granted: 1999-08-31
Abstract: An optical system including a scan disc having concave reflectors thereon. As an optical printer, positioned adjacent to the scan disc are a corrector lens, a strip mirror, and a primary mirror. Positioned adjacent to the image plane are a field mirror and a pick-off mirror. Input light is directed onto the scan disc perpendicular to the plane of rotation. When one of the concave reflectors on the rotating scan disc is centered over one end of the strip mirror, the input light is brought to focus and is redirected to the primary mirror by the strip mirror. The primary mirror forms an image of the light spot after passing through the corrector lens. This image is intercepted by a field mirror which forms a final image of the spot. This image is picked out of the incident light beam by a thin pick-off mirror which redirects the light allowing image accessibility. With minor modification the optical system may also function as an optical scanner.
Patent CA-2084021-C (CA)
Title: Continuous washing machine
Inventor: HATTORI TOSHIO
IPC: D06F31/00
Filed: 1992-11-27
Granted: 1999-02-23
Abstract: A scoop-up portion of scoop means is of a flat plate shape so that water is drained by letting a wash rest on the scoop portion during the transferring operation. The wash is scooped surely in raise/drop washing so that the wash is not caught between the inner peripheral surface and one edge of the scoop-up portion. Also, an auxiliary plate is installed on the back surface of transfer portion of the scoop means to prevent the wash from dropping into the preceding vessel in raise/drop washing. Thus, the crumple washing and beat washing are performed efficiently, and cleanliness is improved.
Patent CA-2084575-C (CA)
Title: Personal computer with generalized data streaming apparatus for multimedia devices
Inventor: DINALLO CHRIS A
IPC: G06F9/46
Filed: 1992-12-04
Granted: 1996-12-03
Abstract: A  multimedia  data  processing  system  includes  a memory for storing multimedia application programs and a multitasking   operating   system.  Extensions   to   the operating  system  control  data  streaming  from  source devices   to   target  devices   to provide   real-time, continuous  streaming.  The  extensions  provide  central buffer management with a user buffer option,  bi-level priority support for data stream handlers,  support for interleaved streams, and data stream event detection and notification.
Patent CA-2085105-C (CA)
Title: Distributed database security system
Inventor: HYATT RICHARD G JR
IPC: G06F12/00
Filed: 1991-06-03
Granted: 1996-08-27
Abstract: An electronic security system includes a controller for controlling access to a location through activation of a lock mechanism in response to coded data and command instructions read from a key or card containing an electronic memory. The key memory data includes information specific to the keyholder which is decoded and acted upon by the controller. The controller memory can be reduced in size while still allowing the use of a large number of keys, by distributing a larger amount of data to the key memories. The controller is also capable of writing and altering key memory data in real time to control the subsequent use of the key.