baber/WOPTO huggingface dataset:
Patent CA-1301927-C (CA)
Title: Multiple-pulse method and apparatus for use in oximetry
Inventor: PROSSER STEPHEN J
IPC: A61B5/00
Filed: 1987-08-17
Granted: 1992-05-26
Abstract: MULTIPLE-PULSE METHOD AND APPARATUS         FOR USE OXIMETRY      Abstract The disclosed invention is for use in extracting more accurate information from signals employed in pulse oximetry. Basically, pulse oximetry involves the illumination of arterial blood flowing in tissue with light at two wavelengths. Upon emerging from the tissue the light is received by a detector (38) that produces signals that are proportional to the intensity of the light received at each of the wavelengths. Each signal includes a slowly varyingbaseline component representing the attenuation .beta. (t) of light produced by bone, tissue, skin, and hair. The signals also include pulsatile components representing the attenuation .alpha. (t) produced by the changing blood volume and oxygen saturation within the finger. The signals produced by the detector (38) are converted by an analog-to-digital (A/D) converter (72) for subsequent analysis by a microcomputer (16). The microcomputer (16) extracts the following information from the signal corresponding to each wavelength. VH is determined to be the signal magnitude at a second pulse diastole. VL is, similarly, the signal magnitude at systole of the same pulse. A term .DELTA.V is identified equal in value to the difference in signal magnitudes at the adjacent systoles. Finally, valuesare determined for .DELTA.ts and .DELTA.tp, being the interval between an adjacent systole and diastole and the pulse period, respectively. The microcomputer (16) then determines a value for ROS in accordance with the relationship:                     ROS =   Empirically derived oxygen saturation curves are used to develop an indication of the oxygen saturation from the value of ROS computed.
Patent CA-1286698-C (CA)
Title: Die spring construction
Inventor: ECKTMAN JACK D
IPC: B21D24/02
Filed: 1987-10-19
Granted: 1991-07-23
Abstract: ABSTRACT OF THE DISCLOSURE           A pneumatic shock absorber used primarily as a die spring includes a piston formed with a base and an upstanding cylindrical body provided with an internal fluid reservoir. An outer housing is mounted on the base and extends about the cylindrical body.   An inner housing is axially telescopically mounted for sliding movements within the outer housing.   A flexible sleeve is enclosed at one end by a sealing cap and is sealingly connected at its other end to the exterior of the piston body forming a fluid chamber therein which communicates with the fluid reservoir of the piston.  An opening is formed in the piston body to fill the reservoir and chamber with a high pressure fluid which places the inner housing in an expanded position by the end cap pressing against an end wall of the inner housing upon axial expansion of the sleeve. Rolled end flanges formed on the housings engage each other to stop the movement of the inner housing at the expanded position.   The inner housing moves axially within the outer housing  compressing the fluid trapped in the fluid reservoir and chamber to absorb axial forces applied to the piston and inner housing.
Patent CA-1297151-C (CA)
Inventor: SCHAEFER HENRY A
IPC: H04B1/3883
Filed: 1987-10-23
Granted: 1992-03-10
Abstract: PORTABLE RADIO BATTERY PACK     WITH ON-OFF SWITCH     Abstract of the Disclosure An improved arrangement for powering a two-way portable radio or the like comprises rechargable battery cells and sets of power input and output contacts interconnected to each other and the battery cells in such a way that the output contacts may be electrically connected to the battery cells for powering the ratio, or to the input contacts for receiving power directly from a battery charger for dead battery operation while simultaneously recharging the battery cells, all battery pack contacts being electrically isolated from the battery cells in the latter mode of operation.
Patent CA-1289981-C (CA)
Inventor: LAUREN HENNING JOHN EMIL
IPC: D04H1/736
Filed: 1987-10-30
Granted: 1991-10-01
Abstract: Abstract The invention relates to a process for feeding out a primary web of mineral wool onto a receiving conveyor.  For this purpose, a pendulum conveyor has been used.  In order to achieve good quality and the desired capacity the primary web must be thin and output rate high, which causes problems in fixing the primary web into the already fed out web and in looping the edges of the fed out web.  According to the invention, these problems have been solved by making the trajectory and rate of motion of the output end (10) of the receiving conveyor (2) to comprise a central portion (B1) with a constant speed, which equals or is close to the output rate of the primary web, and an outmost portion (B2) having a retarding or accelerating speed, respectively.  By this means the output end may move close to the receiving conveyor and be rapidly fixed into the bed while the pendulum allows appropriate space in the extreme positions for the edge loop, which also is rapidly fixed into the bed and forms an even edge.  The invention relates also to a device for carrying out the process.
Patent CA-1299570-C (CA)
Title: Herbicidal pyridine sulfonamides
Inventor: HANAGAN MARY A
IPC: C07D491/048
Filed: 1987-11-24
Granted: 1992-04-28
Abstract: TITLE HERBICIDAL PYRIDINE SULFONAMIDES               Abstract of the Disclosure This invention relates to certain novel pyridine sulfonamide compounds, to compositions containing such compounds, and to a method of use of such compositions to control the growth of undesired vegetation.     2127a 2128a
Patent CA-1299691-C (CA)
Title: Electrical receptacle assembly
Inventor: BRANT EDWARD J
IPC: H01R13/713
Filed: 1987-12-18
Granted: 1992-04-28
Abstract: Abstract Of The Disclosure A principal aspect of the disclosure concerns housing means for an electrical receptacle comprising front and rear sections which are retained in assembled relation by snap fit coupling of terminal ends of post members on one section with edges of wall portion on the other section.  The housing is disclosed in the context of a receptacle having ground fault circuit interrupting capability.  Other disclosed features include snap-fit connection means for other components of a ground fault receptacle; a wiring board having solid state components of a ground fault circuit mounted on one surface and electro-mechanical components on the other, and a ground fault receptacle having both screw-type and push wire terminations.  The foregoing features are made possible by a unique design and arrangement of parts which facilitates automated assembly of the entire receptacle.
Patent CA-1338176-C (CA)
Title: Intravascular blood parameter measurement system
Inventor: MAXWELL THOMAS P
IPC: A61B5/0215
Filed: 1988-01-29
Granted: 1996-03-26
Abstract: A parameter of blood is sensed in vivo with a system which includes a catheter and a probe.  The catheter has a lumen extending therethrough, a proximal end, a distal end and a distal opening at the distal end.  The probe includes one or more sensors at its distal end.  A saline solution is introduced into the lumen so that there is an interface adjacent the distal opening of the catheter between the blood and saline solution.   The probe is received within the catheter and affixed thereto.   The interface is moved back and forth in the lumen to expose the sensors to blood so that they can sense the blood parameters of interest.
Patent CA-1299933-C (CA)
Inventor: KISLER SEMYON
IPC: B05B17/06
Filed: 1988-03-02
Granted: 1992-05-05
Abstract: METHOD AND APPARATUS FOR APPLYING ULTRA-THIN COATINGS TO A SUBSTRATE                       ABSTRACT OF THE DISCLOSURE An electrostatic coating method and apparatus are provided that are capable of applying an extremely thin and virtually constant thickness coating to a substrate, and includes a coating applicator having an opening formed of dielectric material through which coating material flows for coating purposes.  The coating material supplied to the applicator is pressurized to maintain a substantially constant volume of coating material at the applicator opening output and is vibrated in the vicinity of the applicator opening to provide a uniform flow of coating material to the applicator out-put, to stabilize the shape of the coating material at the applicator output and to preclude changes in coating material flow rate caused by electrostatic field induced coating material dryout.  An electrostatic field of pre-determined magnitude is established between the coating material surface and the adjacent substrate to thereby extract minute, uniform size particles from coating material at the applicator opening and subsequently deposit an ultra-thin layer of these particles on the adjacent substrate as the substrate moves past the applicator opening.  In dielectric substrate coating applications where a relatively thick coating layer is required, an electrostatic charge is established on the dielectric substrate, at a remote location, before the substrate is coated in order to neutralize the electro-statically charged coating material so that such coatings can be electrostatically applied.
Patent CA-1317083-C (CA)
Title: Countergravity metal casting apparatus and process
Inventor: CHANDLEY GEORGE D
IPC: B22D18/04
Filed: 1988-05-06
Granted: 1993-05-04
Abstract: COUNTERGRAVITY METAL CASTING     APPARATUS AND PROCESS Abstract of the Disclosure An apparatus and method for countergravity casting of molten metal, in a gas permeable mold with a fill passage upper end above the lateral communication of the passage with other mold cavities.  The mold is filled by low pressure in a chamber sealed about the mold while the mold fill passage is communicated with the molten metal.  Provision is made for maintaining, during filling, the upper part of the mold fill passage at a lower pressure than that in the chamber external to the mold.
Patent CA-1311504-C (CA)
Title: Synthetic hydrocarbon fluids and their use as traction fluids
Inventor: FORBUS THOMAS R
IPC: C07C5/03
Filed: 1988-05-31
Granted: 1992-12-15
Abstract: SYNTHETIC HYDROCARBON FLUIDS AND THEIR USE AS TRACTION FLUIDS                                ABSTRACT          Highly branched synthetic hydrocarbon fluids produced by anionically oligomerizing selected dienes in the presence of organoalkali compounds and complexing reagents provide fluids having high traction coefficients and excellent elastohydrodynamic lubricating characteristics.
Patent CA-1328894-C (CA)
Title: Safety fitting for a vacuum orifice in a swimming pool
Inventor: FRENTZEL HERMAN E
IPC: F16L55/10
Filed: 1988-06-09
Granted: 1994-04-26
Abstract: ABSTRACT OF THE DISCLOSURE    A fitting is disclosed for covering the vacuum orifice formed in the wall of the swimming pool.  The fitting includes a hollow body member connectable to the vacuum orifice and having an opening for receiving a vacuum hose.  A spring loaded cap is connected to the body member and is designed to seal the orifice when the cap is in the closed position.  A safety locking mechanism is provided to prevent the inadvertent opening of the fitting.  In the preferred embodiment, the cap further includes a lug for engaging a vacuum hose to enhance the connection between the hose and the fitting.
Patent CA-1315853-C (CA)
Title: Procede d'ionophorese pour administrer une substance dissoute ou partiellement dissoute, par voie percutanee ou perungueale et dispositif correspondant
Inventor: SCHAEFER HANS
IPC: A61N1/20
Filed: 1988-06-10
Granted: 1993-04-06
Abstract: DISPOSITIF D'IONOPHORESE POUR ADMINISTRER UNE SUBSTANCE DISSOUTE OU PARTIELLEMENT DISSOUTE, PAR VOIE PERCUTANEE OU PERUNGUEALE. Dispositif d'ionophorèse pour administrer une substance dissoute ou partiellement dissoute par voie percutanée ou perunguéale comportant deux électrodes métalliques (1, 2) reliées entre elles par un moyen conducteur (3), chaque électrode étant destinée à être en contact avec la peau (5) ou l'ongle d'un patient en des zones convenablement éloignées l'une de l'autre par l'intermédiaire d'un tampon d'électrolyte, la substance à administrer étant disposée dans le tampon d'électrolyte actif en contact avec une première électrode, dite électrode active, et un électrolyte passif étant disposé dans le tampon en contact avec la seconde électrode (2), dite électrode indifférente, dans lequel la substance à administrer constitue l'électrolyte (4) de l'électrode (1) la plus ou la moins électropositive suivant qu'elle forme un ion positif ou négatif. (Figure 1)
Patent CA-1317378-C (CA)
Title: Analog to digital conversion by measuring the ratio of rc time constants
Inventor: LEVINE MICHAEL R
IPC: G01K1/02
Filed: 1988-07-06
Granted: 1993-05-04
Abstract: ABSTRACT        The present invention is a technique for forming a digital signal representing an environmental condition.          The technique consists of measuring the variable time constant of an analog sensing device having a variable resistance dependent upon the environmental condition and a capacitor as well as measuring the reference time constant of a precision fixed resistor and the same capacitor. The time constants are measured  by discharging the capacitor, charging the capacitor through the appropriate element and measuring the time for the voltage across the capacitor to reach a predetermined level. Lastly, the digital ratio between the two time constants is formed. This digital ratio is the digital representation of the environmental condition sensed by said analog sensing device.
Patent CA-1329310-C (CA)
Title: Intraocular prosthesis
Inventor: CALDWELL DELMAR R
IPC: A61F2/14
Filed: 1988-07-06
Granted: 1994-05-10
Abstract: ABSTRACT OF THE DISCLOSURE           An  intraocular prosthesis  for  implanting in  an  annular  void  extending  radially  into  the tissues of the eye between the anterior surface of the cornea of the eye and the posterior surface of the  ciliary  body  of  the  eye,  for  replacing  for example a diseased intraocular portion of the eye which  has  been  removed.    The  prosthesis  is  a circular,  transparent,  elastomeric  optical element having a peripheral edge and a non-rigid or flexible porous  skirt  which  extends  radially  from  the periphery of the element.   The skirt encircles the element and is positioned to extend radially into the  void.    An  annular,  flexible  porous  portion having  a pore  size  in  the  range  of  about  25-90 microns,   and  preferably  about  60  microns,   is included  with  the  skirt.     The  porous  portion surrounds the element  and  is  disposed  in contact with the tissues of the eye surrounding the void to allow fibrous growth into the pores of the porous portion.   A plurality, preferably six,  spoke-like, porous extensions may be included.  Hence, with the prosthesis intraocular portions of the eye, such as a  diseased  cornea  or  a  diseased  lens,  may  be replaced.  For replacement of the cornea, the ocular element would have a convex, anterior surface and a concave, posterior surface.
Patent CA-1291197-C (CA)
Title: Surface heating element for tool and machinery components
Inventor: MUELLER WALTER
IPC: B29C35/02
Filed: 1988-07-20
Granted: 1991-10-22
Abstract: Abstract 1.     A surface heating element for tool or machine parts. ? 2.1    It is the task of the present invention to so configure a surface heating element with an electrical heater for tool and machine parts that the heating conductors (5) are arranged within the heating element so as to be largely free of wear and loss; and so that the heating element produces a high heat output over a long service life and can be matched in a simple manner to the tool and machinery components that are to be heated. 2.2     This task has been solved in that each heating conductor (5) that is enclosed in a thin layer of insulation (6) is arranged without any clearance in a receptacle that is defined by two parts of the heating element, this receptacle then being sealed against the atmosphere so as to be gastight and liquidtight.     2.3  The surface heating element is used in particular in the area of injection molding technology.
Patent CA-1283749-C (CA)
Title: Composition for preparing inorganic light weight foam, and process of preparing inorganic light weight foam
Inventor: KOJIMA HIROSUKE
IPC: C08J9/00
Filed: 1988-08-19
Granted: 1991-04-30
Abstract: Abstract of the Disclosure Disclosed herein is a foamable composition for preparing inorganic light weight foam, which comprises inorganic powder and vinyl chloride-based resin as main components, and contains an organic solvent and a foam-ing agent.  The vinyl chloride-based resin is a higher molecular weight resin made by suspension-polymerization or mass-polymerization, and has an average degree of polymerization (?) of 1300 to 10000 as defined by JIS          K-6721-1959.  The ratio by weight of said inorganic powder to said vinyl chloride-based resin ranges from 50:50 to 85:15.  The organic solvent has a solubility parameter (.delta.) of 7 to 10, and a boiling point of 80°C to 140°C.  The ratio by weight of said organic solvent to the total amount of said inorganic powder and said vinyl chloride-based resin ranges from 60:40 to 40:60.
Patent CA-1322586-C (CA)
Inventor: SHAW BRIAN
IPC: G08G1/087
Filed: 1988-08-26
Granted: 1993-09-28
Abstract: SIREN DETECTOR                 Abstract of the Disclosure A siren detector for detecting siren sounds which precess at known yelp, wail and high-low warble rates within a selected frequency band.  A transducer detects siren sounds and produces a corresponding elec-trical output signal.  The output signal is filtered to reject signal frequencies outside the selected frequency band.  The signal amplitude is monitored and varied as required to produce a constant amplitude output signal. The constant amplitude output signal is low pass fil-tered for detection of siren high-low sounds and is also low pass filtered for detection and output of precession signals which pass through a selected centre frequency. Subsequent filters are provided for detecting signals which vary at the wail and yelp warble rates.  Wail, high-low and yelp warble rate signals output by the var-ious filters respectively trigger don't walk and yelp clock generators which in turn drive don't walk and red light output flip-flops respectively.  Operation of the red light output flip-flop is controlled by a delay mechanism which provides a further filtration level to prevent false triggering.
Patent CA-1311575-C (CA)
Title: Process for the production of heat-resistant polyurethane urea elastomers
Inventor: GROEGLER GERHARD
IPC: C08G18/65
Filed: 1988-09-21
Granted: 1992-12-15
Abstract: Mo-3078 LeA 25,609 A PROCESS FOR THE PRODUCTION OF HEAT-RESISTANT POLYURETHANE UREA ELASTOMERS               ABSTRACT OF THE INVENTION         The present invention is directed to a process for the production of a polyurethane urea elastomer which comprises preparing a heterogeneous mixture of a)   a diaminodiphenylurea corresponding to the formula   wherein R1, R2, R3 and R4, which may be the same or different, represent hydrogen or a C1-C6 alkyl radical and wherein the amino groups are in the meta and/or para position to the urea group and b)   an NCO-terminated prepolymer prepared from a polyisocyanate and a polyhydroxyl compound having a molecular weight of 400 to about 10,000, and subsequently reacting the heterogeneous system to form a polyurethane urea elastomer by heating the mixture to a temperature below the melting point of said diaminodiphenylurea.           The present invention is also directed to heterogeneous reaction mixtures based on the above diaminodiphenylureas suspended in the above NCO-terminated prepolymers. LeA 25.609
Patent CA-1313776-C (CA)
Inventor: TALLIS JOHN R JR
IPC: F02N15/02
Filed: 1988-11-21
Granted: 1993-02-23
Abstract: ABSTRACT OF THE DISCLOSURE     Centrifugally disengageable engine starter gearing for selectively starting an engine having a starting gear.  The engine starter gearing includes a power shaft, a sleeve slidably secured to the power shaft, a pinion gear slidably mounted to the power shaft and movable into engagement with the starting gear, a driven clutch member secured to the pinion gear and having splines on a generally circular interior recess therein, a flyweight retainer having splines thereon engaging the splines on the generally circular interior recess, a driving clutch member mounted to the sleeve, mutually engageable clutch teeth on the driving and driven clutch members, a housing fitted over the driving and driven clutch members, an abutment confining the driving and driven clutch members within the housing, a resilient member biasing the driving and driven clutch members into mutual engagement, a radially inwardly extending shoulder on the driving clutch member adjacent the circular recess, and an annular thrust washer having an inner conical surface, the annular thrust washer abutting a loose washer which, in turn, abuts the radially inwardly extending shoulder of the driving clutch member.  A plurality of unitary centrifugal flyweight members are annularly arranged in cavities formed in the flyweight retainer.  Each centrifugal flyweight member has an inclined surface abutting the conical surface of the thrust washer and is operative to displace the thrust washer in the first axial direction in response to centrifugal force.  The cavities in the flyweight retainer extend radially outwardly and cooperate with at least a portion of each of the centrifugal flyweight members to prevent cir-cumferential movement of the plurality of centrifugal flyweight members while permitting radial movement thereof.
Patent CA-1329798-C (CA)
Inventor: VON BALLMOOS ROLAND
IPC: C01B39/04
Filed: 1988-12-19
Granted: 1994-05-24
Abstract: CRYSTALLINE MOLECULAR SIEVE      ABSTRACT          A synthetic crystalline molecular sieve composition comprises at least 70% by weight of a crystalline material having the following X-ray diffraction lines:
Patent CA-1317246-C (CA)
Title: Process for the enzymatic hydrolysis of -aminoadipinyl-monoamino compounds
Inventor: WERNER ARETZ
IPC: C12N9/10
Filed: 1988-12-20
Granted: 1993-05-04
Abstract: Abstract of the disclosure A process for the enzymatic hydrolysis of .alpha.-aminodipinyl-monoamino compounds ?-Glutamyltranspeptidase which can be prepared by fermen-tation can be used to hydrolyze .alpha.-aminoadipinyl-monoamino compounds, especially D-(?)-.alpha.-aminoadipinyl-7-amino-cephalosporanic acid.
Patent CA-1295629-C (CA)
Title: Appareil interrupteur electrique protege et son dispositif de fixation
Inventor: SAENS MICHEL S
IPC: H01H9/02
Filed: 1988-12-21
Granted: 1992-02-11
Abstract: DE DIVULGATION Cet appareil comprend un contacteur qui est muni d'un verrou d'accrochage pour un profilé et auquel est associé un relais thermique amovible à l'aide de broches conductrices. Un canal est ménagé entre deux parois opposées pour permettre à un tournevis d'accéder à un oeil de ce verrou. L'invention permet de faciliter l'extraction de l'ensemble contacteur/relais thermique.
Patent CA-1321357-C (CA)
Title: Apparatus for reducing noise resulting from hydraulic pressure surges
Inventor: SUFFRIDGE ROBERT L
IPC: B30B15/18
Filed: 1989-01-12
Granted: 1993-08-17
Abstract: STRACT OF THE DISCLOSURE             A method and apparatus for reducing the intensity of the sound that accompanies a rapid decompression in a pressurized hydraulic system.  The apparatus includes a reduced area valve that interconnects the high pressure system with a low pressure system, with the valve connected with a tubular muffler so that high pressure fluid is initially released through the valve and into the muffler.  The muffler includes a plurality of spaced apertures that face a rigid structural surface so that the high pressure fluid passing through the muffler issues from the several apertures and impinges on the rigid structure to dissipate the pressure shock accompanying decompression, and thereby modulate the intensity of the sound of decompression.