baber/WOPTO huggingface dataset:
Patent CA-2125831-C (CA)
Title: Method of synchronization for code division multiple access radiotelephone communications
Inventor: LUCAS PHILIPPE
IPC: H04B1/707
Filed: 1994-06-14
Granted: 2002-11-12
Abstract: The synchronization method consists in selecting, at a mobile station, at least one periodic pseudorandom sequence (PN) which corresponds to and is synchronized with the reference sequence transmitted by a base station on a pilot channel, and received by the mobile station over a propagation path, with this being done regardless of the frequency deviation between the transmitter and the receiver. Various possible sequences are tested by calculating the quantities E[s(t).s*(t-~)] and E[s(t).s*(t)], where E(.] designates the mean value calculated over a predetermined integration time, ~ designates a predetermined delay, and s(t) = r(t).c(t) designates the product of the received base band signal r(t) by the value (c(t)} of the tested sequence, and by calculating the ratio ¦E[s(t).s*(t-~)]¦ / E(s(t).s*(t)]. The sequence under test is selected if said ratio exceeds a predetermined threshold.
Patent CA-2126282-C (CA)
Inventor: BIZARD ANDRE
IPC: F28G1/12
Filed: 1994-06-20
Granted: 2002-08-13
Abstract: To impregnate with water the spongy balls (1) that are to be used for cleaning the tubes of a condenser, the balls are put into a tank (2) whose upper portion forms a chamber (10) that is separated from the remainder of the tank by a grid (9) to which the balls cannot pass, the chamber is connected to a pump (17) having a piston (19), and then after the tank and the volumes in communication therewith have been filled with water, all of the valves giving access to the tank are closed, the piston of the pump is pulled back, thereby causing air to be expelled from the balls in the chamber, and the volume is again completely refilled with water so as to evacuate said air and impregnate the balls with water.
Patent CA-2129806-C (CA)
Title: Silanes with hydrophilic groups, their synthesis and use as surfactants in aqueous media
Inventor: KLEIN KLAUS-DIETER
IPC: C09K23/54
Filed: 1994-08-09
Granted: 2003-02-11
Abstract: Silanes of the general formula (see Formula I) are prepared, wherein R1, R2 and R3 in the molecule are the same or different and represent aliphatic or aromatic hydrocarbon groups, R4 is a divalent hydrocarbon group with 4 to 12 carbon atoms and a lateral hydroxyl group, wherein the hydrocarbon group can be interrupted by an ether oxygen, R5 is a hydrophilic, ionic group. A method for synthesizing these compounds is described. The silanes greatly lower the surface tension of aqueous solutions, the surface tension being reduced to values of about 23 mN/m. The silanes are biologically degradable and have pronounced surfactant properties.
Patent CA-2131338-C (CA)
Title: Handleable card and method of manufacture
Inventor: LEIBOVITCH EVAN
IPC: G06F3/12
Filed: 1994-09-01
Granted: 1998-05-12
Abstract: A method is described for making handleable card having images on front and back surface of the card. The process includes the creation of templates which incorporate a combination of design elements and repetitive textual information stored as computer files. These templates are combined with textual information specific to each card, as well as digital representations of scanned photographs; also stored as computer files. The resulting composite images are printed onto a single sheet material having front and back surface covered with plastic laminate film which has been treated with an adhesive layer on its inside surface. The covered sheet material is passed through laminator for fusing the front and back sheet material to the plastic laminate film and cut into separate card.
Patent CA-2136134-C (CA)
Inventor: BORCHELT JAMES E
IPC: B62D27/02
Filed: 1994-11-18
Granted: 1999-07-27
Abstract: An automobile body panel has an outer contour-defining component and an inner structural component.  The inner structural component comprises a front member, a rear member, a plurality of side members, a central region defined by the front, rear, and side members, and at least one internal member disposed in the central region, and may also include at least one cross member disposed in the central region.  The side members and each internal member have a substantially closed cross-sectional geometry.  The outer component is secured to the inner structural component at the periphery of the panel.  In addition, the outer component is substantially continuously adhesively bonded to each internal member, to flanges of the front and rear members, to each cross member and to the upper surface of each side member.  The resulting panel is light-weight, has a high degree of rigidity, is capable of absorbing crash energy in frontal impact, and is resistant to puckering and oil canning.  An alternative embodiment comprises a combined hood-fender body panel.  The combined hood-fender has side members which form a structural interface with "A" pillars of the automobile to facilitate load transfer in a frontal impact.
Patent CA-2136313-C (CA)
Inventor: WILLIAMS JEFFREY
IPC: C08K5/56
Filed: 1993-05-20
Granted: 2002-03-19
Abstract: An optical filter for absorption of electromagnetic radiation of wavelength 532 x 10 -9m with excellent photostability pro-perties is provided by a polymeric host material such as polycarbonate incorporating the absorbing compound 5,10,15,20 te-trakis (4-methoxyphenyl)-21H,23H porphine palladium (II).
Patent CA-2137336-C (CA)
Title: Dual string tubing rotator
Inventor: CUPPEN NOLAN W
IPC: E21B33/047
Filed: 1994-12-05
Granted: 2004-11-02
Abstract: A producing oil well has two strings, a production tubing string containing a rod-driven pump and a secondary tubing string extending along the well for the supply of flushing or injection fluid to the well bore. Rod wear on the production tubing string is distributed by rotating the production tubing using a tubing rotator mounted on the wellhead. The rotator includes a mandrel and gear drive for rotating the tubing string and an offset for the secondary string that may be connected to a coiled tubing hanger.
Patent CA-2137608-C (CA)
Inventor: NACHMAN JACOB B
IPC: H04N21/418
Filed: 1994-12-08
Granted: 2000-02-29
Abstract: A hacking prevention system for use with a network including a transmitter and a multiplicity of receivers, each receiver being independently enabled by a secret number and when enabled being responsive to data received from the transmitter for decrypting encrypted information, each of the multiplicity of receivers including: a first key generator, employing at least part of the data and a function which differs for at least a plurality of ones of the multiplicity of receivers, for generating a first key which is different for each receiver having a different function, a second key generator employing at least part of the data and the function to produce a second key, and a secret number generator utilizing the first key with the second key to produce the secret number which is the same for all of the multiplicity of receivers, whereby first and second keys intercepted at a first receiver cannot be effective to enable a second receiver having a different function.
Patent CA-2140940-C (CA)
Inventor: BERTRAND VICTOR J
IPC: A47B9/00
Filed: 1995-01-24
Granted: 2007-01-16
Abstract: The adjustable level play desk is for a child. It comprises at least three elongated legs of substantially circular cross section, each of the legs having a lower end for resting on the ground and an outer cylindrical surface provided with a first locking device; and a top body having an upper play surface, and at least three sleeves oriented downwardly when in use, the sleeves being for slidably receiving respectively the legs, the sleeves being solid with the top body at positions providing steadiness thereof.      Each of the sleeves has a lower opening for receiving the corresponding leg, and an inner cylindrical surface provided with a second locking device for removably engaging with the first locking device of the corresponding leg upon a predetermined rotation thereof to lock the corresponding leg with respect to the sleeve, and a guiding device for guiding the corresponding leg along a longitudinal direction of the sleeve, whereby, in operation, the play surface is adjusted with respect to the child according to a given level by sliding and locking the legs with respect to the sleeves.
Patent CA-2142300-C (CA)
Title: Methods for detecting alzheimer's disease
Inventor: ROSES ALLEN D
IPC: C12Q1/68
Filed: 1993-09-30
Granted: 2005-08-23
Abstract: Methods of diagnosing or prognosing Alzheimer's disease in a subject are disclosed. The method involves detecting the presence or absence of an apolipoprotein E type 4 (ApoE4) isoform or DNA encoding ApoE4 in the subject. The presence of ApoE4 indicates the subject is afflicted with Alzheimer's disease or at risk of developing Alzheimer's disease.
Patent CA-2146980-C (CA)
Inventor: D ANGELO RALPH M
IPC: G01V1/50
Filed: 1993-10-12
Granted: 1998-12-29
Abstract: A method and apparatus for spatially filtering a signal set to enhance interface echoes representing a borehole (111) configuration. The spatial filtering technique provides information regarding th e various interfaces (123, 125, 127) formed between materials in the borehole environment, as well as thicknesses of the various mat erials present in the borehole. Further, the presence of channels (129) formed during the cementing procedure are detected.
Patent CA-2147268-C (CA)
Title: A process for preparing physically stable crystalline .gamma. modification of para-amino-benzenesulfanylamide
Inventor: LEONIDOV NIKOLAI BORISOVICH
IPC: C07C311/39
Filed: 1993-11-16
Granted: 1999-04-20
Abstract: A process for preparing a physically stable crystalline ~-modification of para-aminobenzenesulfanylamide comprises cooling a para-aminobsnzenesulfanylamlde solution in water or an organic solvent  at rate of at least 2°C/min to complete crystallization thereof and subsequently separating the resulting crystals and drying thereof.
Patent CA-2150229-C (CA)
Title: Nitric esters having a pharmacological activity and process for their preparation
Inventor: ARENA BARBARA
IPC: C07D333/22
Filed: 1993-11-15
Granted: 2005-06-14
Abstract: Nitric esters with pharmacological activity having general formula (I), their pharmaceutical utilisation and process for their preparation.
Patent CA-2154385-C (CA)
Inventor: CHERRICK SOL M
IPC: H04N21/434
Filed: 1995-07-21
Granted: 1999-06-29
Abstract: A television receiver has a main, or regular, display; a picture-in-picture display; and an on-screen menu displays for adjusting various television operating parameters, including those which are channel or source related, such as channel labeling, source labeling and on-screen program guide operation. When a channel or source related menu is displayed for operation on channel or source related functions, the channel or source operated upon is displayed in the picture-in-picture display and the main display may be blanked to present a more legible background for the menu.
Patent CA-2157481-C (CA)
Title: Covering panel
Inventor: FELIX ANDRE
IPC: E04F13/12
Filed: 1994-12-30
Granted: 2004-12-21
Abstract: A covering panel consisting of a metal cladding with a supporting structure (15) and cladding members (11) attached thereto by means of fastening screws (14). Said cladding members (11) consist of extruded aluminium sections and comprise quick fastening members (12) and locking members (13) for interconnecting said sections. The cladding members (11) are joined to the supporting structure (15) by evenly spaced longitudinal T-shaped sections (20) each having an axial longitudinal channel (21) with grooved walls for engagement with the screws (14) for fastening said cladding members. Said sections are adjustably spaced from the wall (22) by means of brackets (23) engageable with the longitudinal sections (20).
Patent CA-2157855-C (CA)
Inventor: KLEEMANN HEINZ-WERNER
IPC: A61K31/44
Filed: 1995-09-08
Granted: 2009-04-21
Abstract: Benzoylguanidines of the formula I (see formula I) with the meanings given in the text for the substituents, are described. These are compounds which have an outstanding activity on the cardiovascular system. They are obtained by reaction of a compound of the formula II (see formula II) with guanidine, where L is a leaving group. Intermediate products of the formula III (see formula III) are also described.
Patent CA-2157908-C (CA)
Inventor: BLEDSOE CARLTON L
IPC: F28D19/04
Filed: 1994-11-14
Granted: 1998-05-05
Abstract: A system and method for detecting hot spots in a rotary regenerative air preheater which compensates for normal variations in the temperature of the incoming hot gas stream or incoming cold air stream. Alarm conditions are based on calculations relating to the average and maximum outlet gas or outlet air over a period of time compared to the air and gas inlet temperature. The alarm is triggered if the maximum values deviate from the time averaged values more than a selected percentage.
Patent CA-2159453-C (CA)
Inventor: KRONE NORRIS
IPC: H04L12/43
Filed: 1994-04-01
Granted: 2002-08-06
Abstract: A high speed data collection processing and distribution  system (Fig. 1) for coupling a plurality of digital data sources (16, 22) to a plurality of digital data processors (13, 19, 20). The system (Fig. 1) includes a plurality of segmented parallel data paths (DPS1, DPS2, DPS3, DPSn) and a plurality of nodes (Node-1, Node-2, Node-3, Node-n) connecting said parallel data paths (DPS1, DPS2, DPS3, DPSn) in an endless ring. Each node (Node- 1, Node-2, Node-3, Node-n) includes an input connector (IPC2) for connecting the end of one of said segments of parallel data paths (DPS1) on a one-for-one basis; a data multiplexer (31-2), a plurality of node parallel data paths (NPDS2) in the node (Node-2) corresponding to the segmented parallel data paths (DPS1), respectively, connected to the input connector of the data  multiplexer (31-2) such that data input to the  multiplexer (31-2)  corresponds to respective ones of the segmented parallel data paths (DPS1). A control processor (32-2) is coupled to said node parallel data paths (NPDS2), and a second input of the processor (31-2). A common source clock (30) and slot signals (CSC1, CSC2, CSC3, CSCN) is independently connected to said control processor (32-1, 32-2) in each node, respectively, for controlling the timing thereof.  Each node also includes transmit (53) and receive FIFO (43) buffer memories address (44), exclusive source (45) and pattern matching (46) circuits and a local clock distribution circuit (40).
Patent CA-2159755-C (CA)
Title: Smoke detection chamber
Inventor: RATTMAN WILLIAM J
IPC: G08B17/103
Filed: 1995-11-09
Granted: 2001-01-23
Abstract: The present invention provides for a smoke detection chamber for use in a photoelectric smoke detector, the chamber being a generally parallelepiped having a mounting arrangement for a photoemitting diode located in a first end wall of the chamber. A second end wall of the chamber opposite the mounting arrangement is shaped to provide communication between the interior and exterior of the chamber while appearing as a solid surface to external ambient light and allowing a light beam from a photoemitting diode located in the mounting arrangement striking the second end wall to be reflected to the exterior of the chamber. In a preferred embodiment the second end wall is louvred to provide communication between the interior and exterior of the chamber such that a light beam from a photoemitting diode located in the mounting arrangement striking the second end wall would be deflected by the louvred end wall to the exterior of the chamber.
Patent CA-2164296-C (CA)
Title: Heterocyclic chemistry
Inventor: OSBORNE LINDA MARIE
IPC: A61P25/28
Filed: 1994-05-26
Granted: 2007-01-23
Abstract: The invention provides crystalline 3-(4-hexyloxy-1,2,5-thiadiazol-3-yl)-1,2,5,6-tetrahydro-1-methylpyridine (+) L-hydrogentartrate, its preparation and use as a therapeutic agent.
Patent CA-2165258-C (CA)
Inventor: RAPHAEL JULIAN J III
IPC: B66D3/16
Filed: 1995-12-14
Granted: 1999-01-05
Abstract: A lever operated tool, such as a chain hoist, is provided with a free wheel mechanism allowing a lift wheel to  be  selectively disconnected relative to a driving gear in response to rotations of a manual control knob.  The knob controls sliding movement of a driven gear mounted for rotation with the lift wheel between first and second positions in which it is engaged with and removed from engagement with the driving gear.
Patent CA-2167516-C (CA)
Inventor: SHIOMI KAKUICHI
IPC: B64F1/18
Filed: 1995-05-18
Granted: 2003-05-13
Abstract: A user interface unit for an airport air operation slip management, wherein a control seat for each air control staff member includes a control seat terminal device including an instruction input device for inputting an information request instruction for requesting information regarding an arbitrary airplane to be controlled and an information transfer instruction for transferring information of an airplane, a control service of which is completed, to another seat, and an information display device for displaying information regarding the airplane to be controlled. A database of information regarding each airplane to be controlled is obtained and a time schedule for each airplane to be controlled is managed. An information processing device reads out necessary information of corresponding airplanes to be controlled based on the managed time schedule, edits and reads out the information of a designated airplane when there is an information request instruction or an information transfer instruction from any instruction input device as a control service strip information. An information output device outputs the control service strip information 1) to information display devices of associated ones of the plurality of control service terminal devices on the basis of the time schedule, 2) to the information display device of a control seat terminal device via which a respective information request instruction was input, and 3) to the information display device of a designated control seat terminal device on the basis of an information transfer instruction, and deletes the control service information of the corresponding airplanes to be controlled from the information display device of the control seat terminal devices from which the information transfer instruction was input.
Patent CA-2168710-C (CA)
Inventor: WALTER MARK RICHARD
IPC: H02H3/16
Filed: 1996-02-02
Granted: 2007-07-03
Abstract: A three wire power supply circuit is provided comprising a circuit for monitoring the integrity of the ground connection of the power supply circuit. A circuit element is provided in the line-to-ground current path which conducts when current flows in the line-to-ground current path and is nonconductive when the ground connection is poor or absent. A microcontroller monitors the output of the circuit element and operates a buzzer or a light emitting diode to indicate when the ground connection is poor or absent.
Patent CA-2169691-C (CA)
Inventor: IWAI KOUJI
IPC: B23Q11/00
Filed: 1996-02-16
Granted: 1999-01-05
Abstract: A method and apparatus of removing dust deposited on a surface of a vehicle body using a dust-removing brush to release the dust from the surface of the body to remove through aspiration be suction air is disclosed.  The method comprises the steps of:horizontally floating the brush with the brush being held in contact with the surface of the vehicle body to allow the dust to be released from the surface of the vehicle body; and flowing the suction air along the bristles from the end region to the root region thereof to effect to aspirate out the released dust as a result of the horizontal floating movement of the brush.
Patent CA-2171013-C (CA)
Inventor: EVANS JOHN W
IPC: C23F11/14
Filed: 1994-09-08
Granted: 2005-07-26
Abstract: A nonaqueous engine coolant utilizes propylene glycol and propylene glycol- soluble corrosion-inhibiting additives which do not require water to enter into or remain in solution thereby educing toxicity levels and corrosiveness exhibited by aqueous coolants.
Patent CA-2171573-C (CA)
Title: Catalysts and catalyst carriers obtained by tableting
Inventor: RUBINI CARLO
IPC: B01J23/881
Filed: 1996-03-12
Granted: 2008-08-05
Abstract: Catalysts and catalyst carriers, in the form of granules having a definite geometric form, characterized by porosity values such that at least 70% of the volume of the pores have a radius corresponding to the peak values of the porosity distribution curve.     The catalysts and the carriers are obtained by compression shaping, wherein the lubricant employed is applied to the surface of the molding chamber (external lubrication).
Patent CA-2180802-C (CA)
Inventor: RICE BRIAN J
IPC: E05C7/00
Filed: 1996-07-09
Granted: 1999-09-14
Abstract: The present invention relates generally to door security devices. More particularly, the present invention relates to devices which mechanically prevent a door from being opened. While the safety features of the out-swinging panic-bar door are desirable, the ease with which these doors may be broken into is a disadvantage. To reduce the threat of burglary, devices have been made which prevent out-swinging doors from being opened. It is an object of the present invention to provide a door security device which is portable which prevents a door from being opened. Another object of the present invention is to provide a door security device which is easy to install and remove. A further object of the present invention is to provide a door security device which requires no special tooling to install or remove. The security device of the present invention includes a support bar, at least one blocking means, attaching means, and an actuator. The support bar has first and second ends and the blocking means is disposed between the ends of the support bar. The attaching means is mounted to the support bar for removably securing the support bar in position adjacent a structure. The actuator is connected to the attaching means and is operable to actuate the attaching means to secure the support bar adjacent the structure.
Patent CA-2181537-C (CA)
Title: Lock window for price channel
Inventor: MURRAY JAMES
IPC: G09F3/20
Filed: 1995-10-20
Granted: 2001-07-03
Abstract: A plastic price channel for attachment along the front edge of a merchandise display shelf to carry labelling pertaining to articles on the shelf has a main body panel and a see-through cover joined to the body panel along its bottom edge so that non-adhesive labels can be fitted between the body panel and the cover. The top edge of the cover can be engaged behind a resilient top lip on the body panel to releasably lock the cover in place and forwardly extending channel-shaped formation is provided along the top edge of the cover in which the top lip is received. The channel-shaped formation has an upwardly extending outer limb forming a gripping element by which the top edge of the cover can be disengaged from behind the top lip by finger pressure exerted downwardly on the gripping element.
Patent CA-2183547-C (CA)
Title: Compositions for treating defective cell functions
Inventor: VOROBIEVA TAMARA VASILIEVNA
IPC: A61K33/36
Filed: 1994-06-15
Granted: 2002-05-14
Abstract: An agent having an immunimodulating effect and reducing disturbed functioning of the tissue cell propagation regulating system consists of an active substance which is mercury dichloride or potassium arsenite or sodium arsenite, in a quantity of 0.05 to 1.5 wt. % and a diluent to make up 100 wt. %.  The diluent used in the said agent preferably contains grape white wine with a sugar content of 3-4 wt. % or milk whey with a sugar content of 3-4 wt. %.