baber/WOPTO huggingface dataset:
Patent CA-1265875-C (CA)
Title: System, detector and method for sensing a parameter of a medium by means of radiation attenuation
Inventor: TAWIL RIAD A
IPC: G01B15/02
Filed: 1987-01-07
Granted: 1990-02-13
Abstract: ABSTRACT A system and related method for sensing a parameter of a medium by means of radiation attenuation, the system including a radiation source for emitting radiation that will be attenuated as a function of the parameter upon passage through the medium and a radiation detector operatively positioned to detect the radiation that will be attenuated as aforesaid, and the system being further characterized by the detector comprising a sintillator probe for producing an electrical current output proportionally representative of detected radiation, a current integrator for continuously integrating the electrical current output of the sintillator probe, the current integrator having an input for receiving the electrical current output of the scintillator probe and an output for producing an electrical output representative of the integral of current received at the input thereof, a charge injector for supplying to the input of the current integrator current pulses of predetermined total charge and of opposite polarity relative to the electrical current output of the scintillator probe in response to the output of the current integrator having a predetermined characteristic, and a detector output for generating count signals at a frequency proportionally representative of the frequency at which the current pulses are supplied to the input of the current integrator by the charge injector.
Patent CA-1302153-C (CA)
Title: Margarine fat
Inventor: MOORE HARRY
IPC: A23G3/00
Filed: 1987-02-04
Granted: 1992-06-02
Abstract: ABSTRACT      Hardstock fats suitable for use in edible plastic compositions including emulsion products such as margarine and low fat spreads comprises a substantially saturated fat of which the 2-fatty acids consist substantially of C16  and higher fatty acids and the 1, 3-fatty acids are randomly distributed and contain 50% or more C14 and shorter chain fatty acids.  The fats may be prepared by lipolytic rearrangement under the influence of a 1, 3-regiospecific lipase enzyme as rearrangement catalyst.  The fats are also suitable for use in chocolate filling compositions.
Patent CA-1285916-C (CA)
Title: Packing containers and blanks therefor
Inventor: RAUSING HANS
IPC: B65D5/70
Filed: 1987-03-17
Granted: 1991-07-09
Abstract: ABSTRACT     A packing container of the ridge roof type of the kind which is adapted to be opened by folding out again a bellows fold     formed at the top closure of the container in order to form an emptying opening in the shape of a pouring spout.  With the object of making the container liquid-tight and at the same time easy to open perforation      is arranged aove the said bellows fold    below which the sealing fin delaminates when the container is opened.  The seal  between the material layers forming the sealing fin      below this perforarion is considerably weaker or almost negligible compared with the seal between material layers above the tearing perforation.
Patent CA-1319676-C (CA)
Title: Rotary drill bit
Inventor: ZIJSLING DJURRE H
IPC: E21B10/43
Filed: 1987-03-26
Granted: 1993-06-29
Abstract: A B S T R A C T                          ROTARY DRILL BIT      A rotary drill bit is provided with a plurality of cutting elements having a front layer of abrasive particles, wherein the cutting elements located in the centre region of the bit comprise a thicker abrasive front layer than those in the outer region of the bit. The bit design enables optimisation of drilling characteris-tics.
Patent CA-1283326-C (CA)
Inventor: VIETROGOSKI CHARLES J
IPC: B26D7/01
Filed: 1987-05-04
Granted: 1991-04-23
Abstract: APPARATUS AND METHOD FOR SECURELY HOLDING    A LOAF FOOD PRODUCT DURING SLICING                     ABSTRACT    A method and apparatus for holding a loaf food product in order to allow an automatic slicing system to slice the loaf to preset slice thicknesses. The loaf food product is securely held by a pair of loaf engaging members which are fastened to the inner edges of conveyor guide rails a short distance from the slicing apparatus.  The members prevent the butt end of the loaf from being improperly sliced.
Patent CA-1283643-C (CA)
Title: Disposable device
Inventor: SCOTT STEPHEN D
IPC: B65D85/24
Filed: 1987-08-07
Granted: 1991-04-30
Abstract: ABSTRACT                      DISPOSAL DEVICE      A device  for  enabling  the  safe  disposal  of contaminated used disposable blades, needles, and other sharps  resulting  from  surgery  or  medical  treatment comprises  a container  (1)  having  two  compartments,  a first, closed compartment (2) including a slot (163 and a re-entrant wall portion (12) and a second compartment (3) including a hinged lid (4).  Means  (8, 9)  are provided inside the second compartment (3) securely to hold used needles (22, 23, 24) and a catch (7) is provided to hold the lid (4) of the second compartment  (3) closed.  The slot (16) and re-entrant wall portion (12) enable a used blade  to  be  inserted  into  the  slot  (16)  with  the re-entrant wall portion accommodating a handle upon which the used blade is mounted and a disarming unit (14, 15) is located adjacent the slot  (16)  and re-entrant wall portion  (12)  to remove the blade from the handle.  At least part of the wall (10) of the first compartment (2) is  transparent  to  enable  the  contents  of  the  first compartment (2) to be inspected and counted.
Patent CA-1287728-C (CA)
Title: Acoustical tack board
Inventor: WINKOWSKI DANIEL A
IPC: E04B2/74
Filed: 1987-08-10
Granted: 1991-08-20
Abstract: ABSTRACT OF THE DISCLOSURE         A demountable partition wall with laminated panels hung from a wall framework by clips applied to the back of the panel.  The panels are sound absorbing tack boards, consisting essentially of a gypsum wallboard base board, a mineral fiber board core board and a porous decorative sheet of material adhered to the core board.
Patent CA-1279136-C (CA)
Title: Chlorosulfonated polyethylene blends
Inventor: CHEN JOHN C
IPC: C08L27/04
Filed: 1987-08-20
Granted: 1991-01-15
Abstract: TITLE Chlorosulfonated Polyethylene Blends ABSTRACT OF THE DISCLOSURE It has been found that if two different chlorosulfonated polyethylenes, each with its own specific selected chlorine and sulfur content range, are blended with polyvinyl chloride, the resulting three-phase blend has good oil resistance and low temperature toughness.
Patent CA-1295074-C (CA)
Title: Soft textured high strength alkali blue pigment
Inventor: IYENGAR DORESWAMY R
IPC: C09B67/20
Filed: 1987-08-31
Granted: 1992-01-28
Abstract: SOFT TEXTURED HIGH STRENGTH ALKALI BLUE PIGMENT                 Abstract of the Disclosure A process for preparing a soft textured high strength Alkali Blue pigment toner comprising preparing an initial mixture from an alkali metal hydroxide, Alkali Blue pigment, resin, oil or varnish, free fatty acid and water and adding a mineral acid to said mixture to precipitate the pigment product.
Patent CA-1275462-C (CA)
Title: Self-monitoring reflection light barrier
Inventor: GEBHARD HERMANN
IPC: G08B29/00
Filed: 1987-09-01
Granted: 1990-10-23
Abstract: ABSTRACT    A reflection light barrier with a measuring light emitter which emits light into a space to be monitored, and with a measuring light receiver which receives light reflected from an object present in the space to be monitored.  The reflection light barrier, also referred to as light sensor, according to this invention is characterized in that at least one further light receiver is provided which receives the light of the measuring light emitter without reflection, and at least one further light emitter is provided which emits light in a test cycle that is received without reflection by the measuring light receiver.  Improper operating conditions can be recognized and indicated thereby.
Patent CA-1275983-C (CA)
Title: Coupler and pump for a beverage dispenser
Inventor: BROWN ANTHONY D
IPC: B67D1/02
Filed: 1987-09-14
Granted: 1990-11-06
Abstract: ABSTRACT          A coupler and air pump are disclosed for dispensing a beverage from a container having a valve.  The air pump comprises a pump housing including an interior cylinder having a floor and the pump housing includes a base.  A piston is retained within the cylinder of the pump housing for providing a source of compress-ed air; there being means for returning said piston to the top of its stroke, the returning means being retained within said pump housing; and an air passage extending from the floor of the cylin-der through the base of the pump housing.  A beverage passage is within the base of the pump housing.  The coupler comprises a coupler housing including a central cylindrical bore therein; a substantially cylindrical probe movably seated within the cylindri-cal bore of the coupler housing, the probe including a probe head for sealing engagement with the valve of a container of beverage, a top end remote from the probe head, a first flange adjacent the top end of the probe, a second flange delineating the end of the probe head, a recess adjacent the second flange, a central longi-tudinal beverage passage, an air passage parallel to but offset from the beverage passage, the air passage running from the top end of the probe to the recess adjacent to the second flange, and means for sealing the air passage and the beverage passage of the probe head relative to the container valve and from each other.  The movable probe can be actuated; the coupler can be rotatably joined to a container valve; and the air and beverage passages in the probe can be aligned with the air and beverage passages in the base.      The probe can be prevented from rotating relative to the air pump;     and the base of the air pump can be joined to the top end of the probe.
Patent CA-1290700-C (CA)
Title: Centrifugal reverse-osmosis desalination unit
Inventor: MOILLIET ANTONY
IPC: B01D63/16
Filed: 1987-09-24
Granted: 1991-10-15
Abstract: ABSTRACT     The invention disclosed is a desalination apparatus for removing salt from seawater.  The apparatus operates on the principle of reverse-osmosis whereby a feed solution containing seawater is separated into a product solution of decreased salt concentration and an exhaust solution of increased concentration.          An evacuated enclosure is included to reduce windage losses and power consumption.
Patent CA-1301959-C (CA)
Inventor: UENO KEIJI
IPC: G01T1/06
Filed: 1987-12-03
Granted: 1992-05-26
Abstract: ABSTRACT OF THE DISCLOSURE         A dosimeter comprising a support having provided thereon a radiation-sensitive layer which comprises (a) a polymer containing halogen atoms or a polymer containing acetic acid groups and (b) a pH-sensitive indicator dye. the dosimeter provides an easy determination of exposure dose by color change, even at high and law exposure doses.
Patent CA-1324078-C (CA)
Inventor: KAMISHITA TAKUZO
IPC: A61K47/00
Filed: 1988-01-12
Granted: 1993-11-09
Abstract: Abstract:           The present invention is directed to a gel ointment base having stable viscosity and being resistant to light which comprises an aqueous carboxyvinyl polymer solution and an amino acid in an amount effective to increase the viscosity of the aqueous carboxyvinyl polymer solution and a gel ointment which includes an active medical substance.  The gel ointment base of the present invention has the stable viscosity and resistance to light at a pH range which does not irritate mucous membranes and skin.
Patent CA-1302546-C (CA)
Title: Infrared-radiation detector device
Inventor: BETHEA CLYDE G
IPC: H01L31/0264
Filed: 1988-01-15
Granted: 1992-06-02
Abstract: Bethea-Choi-Levine-Malik-Walker 9-2-8-5-2 Abstract of the Disclosure A narrow-bandwidth, high-speed infrared radiation detector is based on tunneling of photo-excited electrons out of quantum wells. Infrared radiation incident on a superlattice of doped quantum wells gives rise to intersubband resonance radiation which excites electrons from the ground state into an excited state. A photocurrent results from excited electrons tunneling out of quantum wells. Conveniently, Group III-V materials can be used in device manufacture. Preferably, quantum well potential barriers are shaped so as to facilitate resonant tunneling of photocurrent as compared with dark current. Preferred device operation is at elevated bias voltage, giving rise to enhancement of photocurrent by a quantum-well-avalanche effect.
Patent CA-1290947-C (CA)
Inventor: LANG RAYMOND G
IPC: B09B1/00
Filed: 1988-02-02
Granted: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE         A waste disposal apparatus comprising a con-tainment cage for holding conventional waste containers.          The containment cage has a base platform with attached support feet. Upwardly extending members define the con-tainment portion of the cage, the members having attached centring guides, and a perimeter member to define the open top of the container.  Each containment cage is stacked atop a previous containment cage in a column within a shaft, the support feet of each containment cage engaging the perimeter member of the previous containment cage and the centring guides engaging the walls of the shaft to provide a clear space around the containment cage.
Patent CA-1294314-C (CA)
Title: Facsimile apparatus
Inventor: SATOU KOUICHIROU
IPC: H04N1/04
Filed: 1988-02-19
Granted: 1992-01-14
Abstract: ABSTRACT         A facsimile apparatus which uses an electrostatic recording system in a recording mechanism of the receiving unit thereof and has a copying function of reproducing a read document image using the recording mechanism.  An optical signal corresponding to the document image obtained by scanning the document during copying is entered directly into a photosensitive body in the electrostatic recording mechanism not via a document reading sensor to thereby improve the quality of the copied image.
Patent CA-1316178-C (CA)
Title: Acylation of polysilylaromatic organic compounds and products obtained therefrom
Inventor: POLICASTRO PETER P
IPC: C07F7/08
Filed: 1988-03-03
Granted: 1993-04-13
Abstract: RD-17,515 ACYLATION OF POLYSILYLAROMATIC ORGANIC COMPOUNDS          AND PRODUCTS OBTAINED THEREFROM     Abstract of the Invention A method for making certain silylaryl ketones is provided by acylating a silarylene with an arylacyl halide in the presence of a Friedel-Crafts catalyst.  Silicon containing arylketones are also provided.
Patent CA-1276699-C (CA)
Title: Electrical outlet cover
Inventor: ENGEL STEPHEN M
IPC: H01R13/453
Filed: 1988-03-14
Granted: 1990-11-20
Abstract: Abstract of the Disclosure A safety plate for electrical outlets is disclosed which includes a cover plate having a pair of openings for access to the receptacles of an outlet.  A pair of slidable panels with apertures for the prongs of a plug, and are mounted to the back of the cover plate and held in place by a back plate with corresponding apertures.  A spring biases the panels to misalign the panel apertures from the back plate apertures, such that there is no direct opening to the electrical contacts in the receptacles.  The prongs of a plug may be used to slide a panel to align the apertures to access an outlet.  A raised portion on each panel fits slidably within the cover plate opening and is flush with the prong surface, so that oversize plugs may be used with the safety plate.  A gasket along the back perimeter of the cover plate seals any air leaks.
Patent CA-1289168-C (CA)
Title: Relay valve assembly
Inventor: NEWTON RONALD O
IPC: B60T13/26
Filed: 1988-04-06
Granted: 1991-09-17
Abstract: ABSTRACT OF THE INVENTION    A relay valve providing within a single housing, a brake cylinder relay valve with combined highway override, a dual pressure brake cylinder limiting valve responsive to load, highway supply line and rail supply line charge check valves and a rail reservoir protection valve.  The brake cylinder relay valve includes a valve spool positioned by a first piston responsive to the control signal from a control valve to determine the flow to the brake cylinder and a second piston responsive to the highway supply line to connect the brake cylinder to exhaust.  The limiting valve includes a first piston responsive to load signals to define the first set of limits and a second piston in tandem with the first piston responsive to load signals and emergency brake signal in the brake pipe for increasing the response of the first piston to the load signals in response to an emergency signal on the brake pipe.
Patent CA-1300661-C (CA)
Title: Quick connect coupling
Inventor: MORAIN ELDON W
IPC: F16L37/12
Filed: 1988-04-08
Granted: 1992-05-12
Abstract: "QUICK CONNECT COUPLING"                 Abstract of the Invention A readily attachable and detachable coupling for fluid conduits including a receptable member having a passageway therethrough and having a notch formed in the external surface communicating with the passageway, the notch having a forward wall inclined at an acute angle to the member longitudinal axis and a rearward wall which is substantially perpendicular to the longitudinal axis, and a plug member of a diameter to be slideably received within the receptacle member passageway, the plug member having an enlarged external diameter portion spaced from the end, the receptacle member having a retention wire received therearound and extending within the notch and gaskets within the passageway so that when the plug member is inserted into the receptacle passageway, the enlarged diameter portion can push past the retention wire because the retention wire can expand against the inclined planar wall of the notch but after having passed is prohibited from being withdrawn from the receptacle member by the retention wire.
Patent CA-1297124-C (CA)
Title: Copolymers as thickeners and modifiers for latex systems
Inventor: BARRON MILAGROS C
IPC: C08F226/02
Filed: 1988-04-29
Granted: 1992-03-10
Abstract: Abstract A thickened aqueous copolymer solution useful for thickening and improving the properties of latex systems comprising a copolymer having as monomeric units: about 79-99 percent of a (meth)acrylic acid salt of sodium, potassium, or ammonium; about 0-20 percent of (meth)acrylic acid; about 0-20 percent of a lower alkyl ester of (meth)acrylic acid; about 1-21 percent of surfactant units selected from the reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having hydroxyl or amine functionality; or an ester of a monoethylenically unsaturated dicarboxylic acid, with a polyoxalkylene  alkyl ether or a polyoxyalkylene sorbitan ester, and about 0-1 percent of a copolymerizable polyethylenically unsaturated monomer, said percentages being by weight based on the total weight of monomeric units in said copolymer.
Patent CA-1319535-C (CA)
Title: Filament drive circuit
Inventor: ANDERSON DANIEL A
IPC: G01N27/18
Filed: 1988-05-24
Granted: 1993-06-29
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus and a method is provided for determining the equilibrium of the partial pressures of two gases having different thermal conductivities.  The apparatus includes a single sensor adapter to be contacted by the two gases, and heated by a flow of electrical current through the sensor.  A circuit is provided for maintaining the sensor at a constant level of electrical resistance and hence at a constant temperature.  The sensor, in addition, is connected as one leg of a bridge circuit, the output of which represents changes occurring in the thermal conductivity of a mixture of the gases.
Patent CA-1305586-C (CA)
Title: Air sac for oscillating low air loss bed
Inventor: VRZALIK JOHN H
IPC: B65D30/00
Filed: 1988-06-01
Granted: 1992-07-28
Abstract: ABSTRACT OF THE DISCLOSURE      An air sac for use on a low air loss bed.  The air sac is provided with a releasable connector for retaining the air sac to the low air loss bed and with a nipple for receiving air from a gas supply source to inflate the air sac.  The air sac is also provided with a cutout which allows the patient to be rolled toward one end of the air sac when the air sac is inflated.  A pillar is provided on the end of the air sac toward which the patient is rolled when the air sac is infla-ted to retain the patient on the air sac.  The air sacs are arranged in sets with every other sac mounted to the frame of the low air loss bed in alternating arrangement whereby the patient is rolled first in one direction when the air sacs of one set are inflated and then back in the other direction when the air sacs in the first set are deflated and the air sacs in the second set are inflated.
Patent CA-1322455-C (CA)
Inventor: BLOK CHRISTIAAN
IPC: A01G31/02
Filed: 1988-07-05
Granted: 1993-09-28
Abstract: P HP/AB/Rw-12 Abstract The invention relates to a method for the mineral wool culture of plants, whereby water and any fertilizers that may be comprised therein are supplied to, and if necessary discharged from, the mineral wool in which the plant grows, whereby in said mineral wool the suction pressure is ad-justed using a capillary system connected for liquid com-munication with mineral wool, with which capillary system water and any required nutrients are actively supplied to and/or discharged from said mineral wool, in order to re-adjust the predetermined suction pressure; and to a device for the mineral wool culture of plants, comprising: mineral wool in which the plants can grow; means for supplying water and any fertilizers that may be comprised therein to said mineral wool; and means for discharging water and any ferti-lizers that may be comprised therein from said mineral wool, wherein a capillary system connected for liquid communica-tion with said mineral wool, to which system are linked means for adjusting the suction pressure in said mineral wool in which the plant grows, and means for determining the actual suction pressure of the mineral wool, and based on the determined actual suction pressure control the amount of water supplied by the water supplying means and/or dis-charged by the water discharging means.
Patent CA-1305087-C (CA)
Title: Polymeric drag reducer performance by injection through a land-length die
Inventor: JOHNSTON RAY L
IPC: F17D1/16
Filed: 1988-07-07
Granted: 1992-07-14
Abstract: IMPROVED DISSOLUTION/PERFORMANCE BY INJECTION THROUGH A DIE-TYPE NOZZLE                 ABSTRACT OF THE DISCLOSURE           Drag reduction in fluids flowing through conduits is improved by the injection of high molecular weight fluid soluble drag-reducing polymers through land-length dies having multiple openings.
Patent CA-1305611-C (CA)
Title: High accuracy frequency standard and clock system
Inventor: VIG JOHN R
IPC: H03L7/22
Filed: 1988-07-26
Granted: 1992-07-28
Abstract: ABSTRACT         A high accuracy atomic frequency standard and clock which utilizes a microcomputer.  The microcomputer compensates for aging and temperature variations in the atomic standard and its slave crystal oscillator and generates an error signal which is used to either correct the frequency of the slave crystal oscillator or to adjust the number of clock pulses per unit time interval.  No C-field adjustment is employed.