baber/WOPTO huggingface dataset:
Patent CA-2006057-C (CA)
Title: Secondarily contained fluid supply system
Inventor: WEBB MICHAEL C
IPC: F16L55/00
Filed: 1989-12-19
Granted: 1994-05-17
Abstract: SECONDARILY CONTAINED FLUID SUPPLY SYSTEM     ABSTRACT             A secondarily contained piping system comprising a flexible inner supply pipe which is fitted at each end with a coupling and an outer secondary containment pipe having a substantially larger diameter than the flexible inner supply pipe.  Two spaced underground access chambers are intercon-nected in a fluid tight manner through the side wall, just above the chamber base, by the secondary containment pipe. All flexible inner supply pipe couplings and associated fit-tings are disposed within the access chambers.  A fluid source provides an originating interface to the flexible inner supply pipe.  A fluid outlet provides a terminating interface to the flexible inner supply pipe.  Access chambers are of suffi-cient size to permit manual or mechanical removal or replace-ment of the flexible inner supply pipe.  The flexible inner supply pipe has sufficient bend radius to be removed and replaced through the access chambers. All components of the system are chemically compatible with and impervious to the fluids to be transmitted and with the surrounding environment in which they are disposed.  The flexible inner supply pipe and its associated couplings and fitting are of sufficient strength to withstand internal fluid pressures. The access chambers and secondary containment pipe are of sufficient strength to withstand external loads.
Patent CA-2007667-C (CA)
Title: Plate product of ceramic material and process for the manufacturing thereof
Inventor: TONCELLI MARCELLO
IPC: C04B33/04
Filed: 1990-01-12
Granted: 1997-10-07
Abstract: Plates of ceramic material are prepared starting from stone material, particularly feldspar, quartz, porphyry, granites, silica,  syenites,  nephelines,  ceramic  materials,  clays, kaolins, bentonites, in granular and/or powder form, mixed with a small amount of ceramic binder to form a mixture. This mixture is distributed onto a plane delimited from a containing frame and then subjected to  the  simultaneous action of a vacuum and of a vibratory motion combined with a pressing action. After the moulding step, a drying step and then a firing step are carried out, the latter taking place at  the  standard  temperatures  for  the  manufacturing  of ceramic products. The  resulting  plate  has  high mechanical  properties,  is highly resistant to atmospherical and chemical agents, and has a very valuable aesthetic appearance.
Patent CA-2011406-C (CA)
Title: Apparatus for discharging a fluid, and, more particularly, for spraying a liquid
Inventor: BERUBE MARTIN
IPC: B65D83/00
Filed: 1990-03-02
Granted: 1996-09-17
Abstract: A liquid dispensing apparatus comprises a container having a peripheral sidewall, a bottom wall mounted at a lower end of the sidewall and a closure removably mounted to an upper end of the sidewall. A flexible tight plastic bag is mounted at an upper end thereof between the closure and the sidewall and hangs in the container . The bag thus defines in the container first and second chambers which respectively contain a liquid to be dispensed and compressed air. A nozzle extends through the closure into the first chamber. A pressure regulating valve is mounted in the second chamber and defines therein upper and lower sub-chambers, with the bag being submitted to forces exerted by the compressed air contained in the upper sub-chamber. The pressure regulating valve ensures a substantially constant pressure in the upper sub-chamber and thus on the bag, whereas the lower sub-chamber acts as a reservoir for the upper sub-chamber. An admission valve extends through the bottom wall into the lower sub-chamber for filling the container  with compressed air. Safety valves are also provided in the upper and lower sub-chambers. Therefore, upon actuation of the nozzle, liquid contained in the first chamber is discharged from the container through the nozzle as the liquid is under pressure from the compressed air contained in the upper sub-chamber.
Patent CA-2017733-C (CA)
Title: Wireless transmitting-receiving apparatus for a bicycle
Inventor: SAKURAI NOBUO
IPC: G08C17/02
Filed: 1990-05-29
Granted: 1994-07-26
Abstract: ABSTRACT OF THE DISCLOSURE    A wireless transmitting-receiving apparatus in accordance with the present invention is an apparatus for detecting and displaying travel speed of a bicycle which is mounted on a wheel, including a sensor generating one signal per every rotation of the wheel, a signal receiving apparatus for successively receiving signals generated from the sensor, a pulse signal generator generating at least two pulse signals with a prescribed pulse interval for every generated signal, a wireless transmitter for transmitting continuously the generated pulse signals, a receiver for successively receiving the transmitted pulse signals, a converter for converting the received pulse signals into signals corresponding to the inputted signals based on the prescribed pulse interval, a calculator for calculating the travel speed of the bicycle and a displaying portion for displaying the calculated travel speed.
Patent CA-2017786-C (CA)
Title: Aminophosphonate-containing polymers
Inventor: LEIGHTON JOHN C
IPC: C08F8/40
Filed: 1990-05-30
Granted: 1993-04-27
Abstract: ABSTRACT     The invention provides novel aminophosphonate-containing polymers of the following structure:                             (I) wherein A represents repeating units derived from one or more ethylenically unsaturated comonomers, and B is                     (II) wherein R is hydrogen or methyl, X is hydrogen or an alkali metal, Z is CH2 - P(O)(OX)2 or C1 - C6 alkyl, aryl, cyclohexyl or alkaryl; and n and m are positive integers, m/n = 0.01 to 0.50, and preferably m/n is 0.01 to 0.25.  The polymers are useful as dispersants for concentrated aqueous slurries.
Patent CA-2020872-C (CA)
Title: Radio telephone system
Inventor: INABA TSUTOMU
IPC: H04M1/80
Filed: 1990-07-11
Granted: 1994-05-03
Abstract: ABSTRACT OF THE DISCLOSURE     Such a radio telephone system as a car telephone system that a party being asked to hold on can prompt a user of the system to release a hold state set by the user.  When a predetermined time elapses after setting of the hold state during speech but the hold state is not released, an audible tone signal can get ready for being issued from the party side.   Under this condition,  if the party speaks to the user then the party's voice can be output at the side of the user, thus prompting the user to release the hold state.  In addition,  since party's voice is output at the user side only after passage of the predetermined time, the user can feel the party's voice less noisy.
Patent CA-2026477-C (CA)
Title: Power supply testing system for non-utility power generators
Inventor: KONDOH TOYOSHI
IPC: G01R31/34
Filed: 1990-09-28
Granted: 1997-11-04
Abstract: A power supply testing system for a non-utility power generator, etc. comprises: a plurality of tank units to be powered, which are provided depending upon the number of phases of a multi-phase AC power source used with the non-utility power generator and each of which includes a tank to be powered, having a resistive liquid filled therein, a depending main electrode located within said tank and adapted to receive a power from the non-utility power generator and a movable insulator interposed between said main electrode and said tank for regulating the amount of a current passed from said main electrode to said tank; an additional tank unit provided for spare purposes; a common unit located in communication within said plurality of tank units, in which said resistive liquids are collected from within said plurality of tank units; a main supply pipe located above said plurality of tank units to supply said resistive liquids thereto and a plurality of inlet pipes branching off from said main supply pipe into said plurality of tank units; and a flow rate regulator valve attached to each of said inlet branches for regulating the flow rate of said resistive liquid supplied to each tank unit.
Patent CA-2027138-C (CA)
Inventor: BAUMHAUER JOHN C JR
IPC: H04M1/60
Filed: 1990-10-09
Granted: 1994-08-16
Abstract: A loudspeaking telephone station (speakerphone) includes a loudspeaker and one or more microphones within the same housing. The microphones are directional, each having a polar response characteristic that includes a major lobe, one or more side lobes, and nulls between pairs of lobes. The loudspeaker is positioned in the null of the polar response characteristic that resides between the major lobe and an adjacent side lobe. The microphone apparatus is positioned so that its major lobe is aimed in a direction that is generally perpendicular to the direction that the loudspeaker is aimed. Means are provided for increasing the distance between input sound ports of a first-order-gradient (FOG) microphone and thereby improving its sensitivity. A pair of such improved FOG microphones are used in assembling a second-order-gradient microphone. Full duplex operation is achieved when a pair of echo cancelers are added to further reduce the coupling between the transmit and receive directions of the speakerphone.
Patent CA-2028401-C (CA)
Title: Regeneration system for water conditioners such as water softeners
Inventor: SUCHANEK STEVEN C
IPC: C02F1/42
Filed: 1990-10-24
Granted: 1995-04-18
Abstract: A regenerating control system for liquid condition-ers includes ball valves positioned and sized so that they do not cause any flow restriction during the normal operation of the conditioner.  The valves are operated by low voltage D.C. motors which require power only while moving the valves from one  position to  another  position.   An  electronics control system and timer control the operation of the valves and require very small amounts of power.   Consequently, a battery backup system can operate for extended periods of time when a commercial power outage occurs.   A two-piece housing assembly provides improved seals for sealing between the two housing halves and between the housing assembly and the valve.
Patent CA-2035527-C (CA)
Title: Method of performing a multiple synthesis of peptides on a solid carrier and apparatus for performing this method
Inventor: LEBL MICHAL
IPC: B01J19/00
Filed: 1991-02-01
Granted: 2004-08-10
Abstract: A method and an apparatus for performing a multiple synthesis of peptides on a solid carrier. Active components are successively bonded to functional groups anchored on a carrier, and as the carrier there is applied planar functionalized porous material divided into compartments, into which the needed activated component is put. Common operations of the synthesis are carried out by all compartments of the carrier at the same time.
Patent CA-2036026-C (CA)
Title: Electric motor controller with bypass contactor
Inventor: DELANGE ROBERT J
IPC: H02P27/02
Filed: 1991-02-08
Granted: 1997-04-08
Abstract: A three-phase motor is operated by a controller having sets of thyristors which when triggered switch electricity from each phase of a supply to the motor.  The motor is started by triggering the thyristors to be conductive during successively greater portions of each cycle of the AC power.  In order to reduce the cooling requirements for the controller, a contactor is connected in parallel with the thyristors to apply power to the motor once it reaches full speed.  When the controller receives a signal to stop the motor, the contactor is deactivated and the controller goes through a sequence to synchronize  the thyristor triggering process to the phase of the AC power supply.  The synchronizing process provides a smooth transition from contractor control back to thyristors control of the electricity application to the motor.  Once the thyristor control resumes, the controller executes a triggering routine which decreases the voltage applied to the motor.
Patent CA-2039486-C (CA)
Title: Using branched polymers to improve the storage stability of acid treated polymer modified asphalts
Inventor: MORAN LYLE EDWIN
IPC: C08L95/00
Filed: 1991-03-28
Granted: 2002-06-04
Abstract: This invention relates to a composition arid method for improving the storage stability of acid treated polymer modified asphalts. More specifically, the storage stability of an asphalt which contains greater than 1.0 wt.% polymer can be improved by adding a branched, rather than a non branched, polymer to an asphalt which has previously been reacted with an inorganic acid. The storage stable acid treated branched polymer modified asphalt thus produced is particularly well suited for use as a binder in paving materials and as a coating or saturant for roofing shingles.
Patent CA-2048047-C (CA)
Title: Succinoglycane composition
Inventor: BESNARD MARIE-MADELEINE
IPC: C02F1/52
Filed: 1991-07-29
Granted: 1998-12-29
Abstract: A composition comprising a polysaccharide obtained by microbial fermentation of the succinoglycan type and a natural polysaccharide or one of its derivatives, and processes for using this composition, especially a process for precipitating particles dispersed in an aqueous medium.
Patent CA-2051185-C (CA)
Title: A valve
Inventor: HUTTON PETER
IPC: F16K5/02
Filed: 1991-09-13
Granted: 1999-08-17
Abstract: A plug valve is disclosed which has a radially outwardly directed projection at the end of the valve stem, the projection being received in a complementary cylindric chamber in the plug of the valve for easy exchange of the plug during maintenance of the valve. The plug is freely rotatable relative to the stem of the valve. In the preferred embodiment, the stem of the valve does not rotate during the opening or closing motion. The invention provides a simplified structure, improves reliability of the valve and the simplicity of exchange of the plug in maintenance.
Patent CA-2051784-C (CA)
Title: Paving block
Inventor: JOHNSON JOHN V II
IPC: E01C5/06
Filed: 1991-09-18
Granted: 1994-05-24
Abstract: ABSTRACT OF THE DISCLOSURE         A paving block is provided for forming of paved surfaces comprising a plurality of the block laid in adjacent relationship, The blocks are of a planar configuration having a primary body section with coplanar top and bottom surfaces and a vertical peripheral side wall extending between the top and bottom surfaces.  Four main wall elements are included in the peripheral wall with these wall elements disposed in parallel pairs, the pairs being positioned in orthogonal relationship to each other.  A fifth wall element is included in the peripheral side wall and is positioned between two adjacent ones of the main wall elements in equiangular relationship to each other.  In one version of the paving block, two tongue elements are provided in integrally formed relationship with the primary body section and project a distance laterally therefrom at diametrically opposed corners adjacent the respective main wall elements that are interconnected by the fifth wall element. Each tongue element is shaped in plan view to mechanically interengage with side walls of tongue elements  and the fifth wall element of adjacent blocks to form a mechanical interlock of adjacently disposed blocks.  A second version of the paving block has a single tongue element shaped in plan view to cooperatively interfit in each of two complementally shaped recesses cooperatively forming the fifth wall element to form a mechanical interlock between adjacently disposed blocks.
Patent CA-2052303-C (CA)
Title: Whitening cosmetic composition
Inventor: HARA TAKAHIRO
IPC: A61K8/00
Filed: 1991-09-26
Granted: 2002-07-09
Abstract: Disclosed is a whitening cosmetic composition comprising .gamma. -L-glutamyl-L-cystine, .gamma. -L-glutamyl-L-cysteine disulfide, oxidized glutathione or a derivative thereof, the amino group of which is acylated with an alkanoyl group or an aroyl group.      The whitening cosmetic composition of the present invention have extremely good in water solubility and heat stability and stability during storage and show a melanin formation inhibitory activity against melanoma cells without any cytotoxicity.
Patent CA-2057217-C (CA)
Title: A process for the decontamination of toxic, heavy-metal containing soils
Inventor: HOLBEIN BRUCE EDWARD
IPC: B09C1/02
Filed: 1991-12-06
Granted: 1999-08-31
Abstract: The present invention relates to the decontamination of soil and the like and, in particular, soils which are contaminated with metal as a result of the activities of human beings. The invention provides a physical and a chemical means for treating soil aggregate so as to obtain a product aggregate having a relatively low metal content. The physical means is characterized by the classification of a soil aggregate into portions of differing size and metal content. The chemical means is characterized by contacting a soil aggregate with an aqueous lixiviant comprising an organic acid component to lift metal from the aggregate. The physical and chemical means may be used in a combined process for decontaminating soil aggregate.
Patent CA-2064289-C (CA)
Title: Developing unit for use in electronic printing apparatus
Inventor: FUJIMOTO TETSUYA
IPC: G03G15/08
Filed: 1992-03-27
Granted: 1998-09-29
Abstract: A bracket having a large stiffness is provided.  A magnet roller is rotatably mounted on the bracket and a doctor blade is fixed to the bracket.  A bracket assembly comprising the bracket, the magnet roller and the doctor blade is fixed to a frame of a developing unit.  A gap g between the magnet roller and the doctor blade is maintained at a predetermined value even if the frame is deformed due to an external force, and thus printing at a constant density is ensured.
Patent CA-2070326-C (CA)
Title: Tissue cassette with a living hinge
Inventor: GRAHAM DONALD R
IPC: G01N1/31
Filed: 1992-06-03
Granted: 1995-08-22
Abstract: A tissue  cassette  for  holding  biological  tissue specimens.  The tissue cassette includes an open topped, perforated  base  member  adapted  to  receive  a  tissue specimen, a perforated lid member adapted to cover the base member and a snap action hinge joining the base member to the perforated lid.  The snap action member can be J-shaped, sinusoidal shaped or L-shaped.  Further, the cassette can include a living hinge for joining the base member to the open topped base member.  The living hinge includes a  first end attached to the lid member,   a second end attached to the base member,  a flat first surface and a curved second surface, whereby the hinge thickness varies across the length of the hinge and the thinnest portion of the hinge is positioned between the hinge ends.  The curved surface can be concave shaped and the hinge can have a constant width from the first end to an intermediate section and decreasing width from the intermediate section to the second end.  The intermediate section on the hinge second end is offset to permit the breaking away of the hinges flush with the base member surface.
Patent CA-2077460-C (CA)
Title: Waste water treatment process using improved recycle of high density sludge
Inventor: WENTZLER THOMAS H
IPC: C02F1/62
Filed: 1990-11-30
Granted: 2001-10-23
Abstract: An improved process for removing dissolved metals from waste water using a recycle high density sludge is described. Specifically, the process comprises the steps of: (1) treating waste water containing dissolved metals with a recycle stream containing alkaline surface active recycle particles to precipitate the dissolved metals on the surface of the recycle particles; (2) treating a portion of the treated waste water containing metal precipitate solids with an alkaline reagent to form alkaline surface active recycle particles; (3) recycling the alkaline treated stream containing the alkaline surface active particles; and (4) separating the portion of the stream from step (1) not treated with alkaline reagent into a water component which is free of dissolved metals and solids and a sludge component which contains solids. The improved process is further enhanced by using a solids classification step to preferentially separate finer metal precipitate particles, which are treated with an alkaline reagent and recycled, from larger metal precipitate particles, which are discarded.
Patent CA-2078112-C (CA)
Title: Connecting device
Inventor: COX CHRISTOPHER VALENTINE
IPC: F16B15/00
Filed: 1991-03-12
Granted: 1998-06-23
Abstract: The invention provides a connecting device for releasably connecting two objects, comprising a base plate (10) fixedly attachable to first of the objects (4) and least one projection (20) extending therefrom so as to cooperate with receiving means located on the second object (50), characterized in that the projection (20) is releasably mounted on the base plate (10) via interengaging means (14a, 14b, 24a, 24b). This arrangement allows accurate and secure alignment of the base plate (10) at any convenient time up to connection of the two objects (40, 50), particularly during formation or immediately after formation of the first object (40). The projection (20) can be attached at any subsequent convenient time which means that the first object (40) can be stored, transported and handled without the projection (20) attached. This makes storage, transportation and handling easy and economical. The connecting device is particularly suitable for mounting cladding panels on a framework.
Patent CA-2084295-C (CA)
Title: Combination product for bonding parts to be joined containing a cyanoacrylate adhesive and an imidazole derivative as primer
Inventor: NICOLAISEN HEINZ
IPC: C08J7/04
Filed: 1991-05-23
Granted: 2003-09-16
Abstract: The use of certain imidazole derivatives such as 1-benzyl-2-methylimidazole, 1-benzylimidazole. 1-hydroxyethyl-2-phenyl-4,5-dihydroimidazole, 2-phenyl-4,5-dihydroimidazole and N,N'carbonyldiimidazoie as a primer with cyanacrylate adhesives to bond mouldings, particularly polyolefins, results in high-strength adhesive bonds even if time is long between the primer and the adhesive coating.
Patent CA-2094321-C (CA)
Title: Cassette loading device with a unitary linkage lever
Inventor: KIM SEONG-TAE
IPC: G11B15/665
Filed: 1993-04-19
Granted: 1996-11-19
Abstract: A known photoelectric sensor is utilized for optically detecting  the  presence  of  a  tape  cassette  in  a  loading commencement position to produce an electrical driving signal.          Responsive to the driving signal, an electric loading motor is activated to cause a loading arm to swing from one angular position to another angular position.  Rotary movement of the loading motor is translated into a pivotal swinging movement of the loading arm by a unitary linkage lever.  The linkage lever carries a light beam interrupter piece which may cut off the light beam projected by the photoelectric sensor to enable the latter to generate the electrical driving signal.  The linkage lever also carries an arm locking finger adapted to lock the loading arm in a loading completion position.   A reversible speed reduction gadget is employed in operatively coupling the linkage lever to the loading motor.
Patent CA-2099970-C (CA)
Title: Composition for curing sjoegren syndrome disease
Inventor: ABE NOBUAKI
IPC: A61K31/435
Filed: 1993-07-06
Granted: 2003-12-30
Abstract: A composition for curing a Sjoegren syndrome disease is disclosed. The composition comprising derivative of spirooxathiolane-quinuclidine of the following formula   wherein Z is =CR1R2, wherein R1 and R2 may be the same or different and each represents hydrogen, alkyl, cyclopentyl, cyclohexyl, aryl, diarylmethylol, or alkyl which may be substituted by one or more aryl groups, or an acid addition salt thereof, or an acid addition salt thereof, as an effective component. Especially effective is an administration of a hydrochloric acid addition salt of 2-methylspiro(1,3-oxathiolane-5,3')quinuclidine.