baber/WOPTO huggingface dataset:
Patent CA-1293006-C (CA)
Title: Adjustable range spring for differential pressure responsive devices
Inventor: COOPER WILLIAM J
IPC: G01L13/02
Filed: 1988-01-14
Granted: 1991-12-10
Abstract: ADJUSTABLE RANGE SPRING FOR DIFFERENTIAL               PRESSURE RESPONSIVE DEVICES          .     ABSTRACT OF THE DISCLOSURE      A range spring assembly for a differential pressure responsive device which includes a spring retainer plate configured for coaction with a movable portion of a device, such as a bellows or diaphragm.  A flat spiral spring in spaced relation to the retainer plate is provided with a clamp disc. A plurality of helical range springs are equi-angularly disposed about a circumference inwardly of the periphery of the retainer plate, each of the range springs having a first end thereof securely attached to the retainer plate adjacent the center thereof, with the other ends being selectively attachable to the clamp disc, whereby the range may be readily established by locking one or more ends of the helical springs for providing the desired spring bias for the selected range.
Patent CA-1300418-C (CA)
Inventor: KOCH DAVID C
IPC: F16B39/06
Filed: 1988-01-27
Granted: 1992-05-12
Abstract: Abstract of the Disclosure A multi-arm tractor hitch with an improved adjustable arm having a pair of threaded end members with slots therealong, a middle member engaged with the end members in turnbuckle fashion, a locking member movably, preferably pivotably, attached to the middle member and having tabs positioned to engage the slots of both end members when the locking member is in a lock position, to firmly lock them and the middle against relative rotation without any connection beyond the middle member.
Patent CA-1309698-C (CA)
Title: Variable capacity compressor
Inventor: MARUYAMA TERUO
IPC: F04B49/00
Filed: 1988-02-18
Granted: 1992-11-03
Abstract: ABSTRACT OF THE DISCLOSURE   In a variable capacity compressor having a capacity control mechanism so as to keep the suction pressure of the compressor constant by detecting the suction pressure, plural return ports, a return passage and an exit are provided for bypassing refrigerant gas from a volume-decrease-step space in a cylinder compartment to a volume-increase-step space.  A guide passage wherein a slider slides by the pressure of the refrigerant gas is provided for controlling the amount of bypassing gas, whereby it is possible to control capacity correctly and stably.
Patent CA-1297609-C (CA)
Title: Resin compositions
Inventor: NAKAYAMA TAKEO
IPC: C08L25/18
Filed: 1988-03-08
Granted: 1992-03-17
Abstract: Resin Compositions Abstract of the Disclosure A resin composition, which comprises (a) a copolymer containing isocyanate group prepared by subjecting a compound represented by the general formula   wherein R1 stands for hydrogen or methyl group and an ethylenic unsaturated monomer to copolymerization, and (b) a copolymer containing amino group prepared by subject-ing a compound represented by the general formula   wherein R2 stands for hydrogen or methyl group and an ethylenic unsaturated monomer to copolymerization, has a pot life of such an extent as for permitting them to be used as spray-coating, and the resulting film is excellent in flexibility, chemical resistance, water resistance and corrosion resistance, and, besides, rapid in curability, thus being useful as  cold-drying coatings on metals, plastics, woods, inorgainc materials, etc. and also as adhesives, etc. The resin composition is very good in compatibility, thus being useful in such a field as required high gloss and beautiful finish.   Further, the amino group containing copolymer is of relatively high molecular weight, thus being of less toxicity, and, besides, substantially odorless, and, therefore, it causes no injurious problems to health and safety.
Patent CA-1302837-C (CA)
Inventor: SCARROW DAVID
IPC: A61J3/00
Filed: 1988-03-31
Granted: 1992-06-09
Abstract: APPARATUS FOR CONTACTING MATERIAL SUCH AS                  A DRUG WITH A FLUID          Abstract A drug delivery system for enabling liquid in a container to contact the contents of a vial employs a cup having a mouth through which a vial is insertable head down.          A conduit extends from the cup interior to the container interior, possibly via a non-release coupling. A retainer is non-releasably engageable with the cup to trap a vial therein and urge it against the conduit.  The retainer and cup may engage threadedly, with a ratchet preventing disengagement.
Patent CA-1285840-C (CA)
Title: Tilt mechanism for infant incubator
Inventor: WRIGHT LARRY E
IPC: A61G7/002
Filed: 1988-04-18
Granted: 1991-07-09
Abstract: ABSTRACT OF DISCLOSURE A tilt mechanism is disclosed for adjusting the angle of rest of an infant contained within an infant incubator.  The tilt mechanism comprises at least one bent rod that underlies the bed on which the infant is positioned.  By rotating the bent rod, an offset shaped portion of the rod elevates one end of the infant bed.  The rotation is effected by a handle located outside the incubator and which has a plurality of positions, each of which position is locked in place by a spring biased plunger that enters certain grooves formed in the interior surface of the handle.  A push button pushes against the spring bias to move the plunger out of engagement with the grooves in the handle so that the handle can be rotated to another selected position.
Patent CA-1321925-C (CA)
Title: Rounding apparatus for a can welding machine
Inventor: ALZNAUER KURT
IPC: B23K11/06
Filed: 1988-04-19
Granted: 1993-09-07
Abstract: ABSTRACT OF THE DISCLOSURE:           During the rounding of sheet-metal blanks, problems have hitherto arisen in the rounding apparatus because the leading edge of the rounded sheet-metal blanks struck against a stationary stop at the end of a slit between an inner shell and an outer shell,  so that the sheet-metal blank rebounded and did not have a defined starting position for further conveying.   In order to overcome this problem, the stop is constructed in the form of a pivotally movable damping flap on which there is formed a catch hook which closes the slit at its end.  Compression springs are disposed between the damping flap and the inner shell.  Under the impact of the sheet-metal blank, the catch hook yields and urges the damping flap about the pivot axis pressing its front portion into the slit as a result of which the sheet-metal blank is temporarily clamped against the outer shell.  Subsequently, the damping flap is restored via the compression springs and the rounded sheet-metal blanks can thus be taken over by the dogs of the conveyor chains from a defined position and be conveyed further.
Patent CA-1323734-C (CA)
Title: Rotary brush with removable brush elements
Inventor: ABRAHAMSON GERALD R
IPC: A46B7/04
Filed: 1988-06-21
Granted: 1993-11-02
Abstract: ROTARY BRUSH WITH REMOVABLE BRUSH ELEMENTS                 Astract of the Disclosure A rotary brush with removable brush elements is provided.  The brush elements are disposed on a hub in a radial display.  The brush elements include a resiliently flexible element which permits the brush to deflect at a greater angle from a rest position than the angle of deflection of the bristles of the brush from a normal position when the hub is rotated with the bristles in contact with the workpiece.
Patent CA-1297224-C (CA)
Title: Production of aromatic thermoplastic polymers
Inventor: KELSEY DONALD R
IPC: C08G75/23
Filed: 1988-06-29
Granted: 1992-03-10
Abstract: ABSTRACT     The method of preparing a thermoplastic polyarylether polymer which comprises reacting a first monomer composi-tion comprising an activated dihalobenzenoid compound and dihydroxybenzenoid composition comprising hydroquinone, adding to the product a second monomer composition com-prising a dihydroxybenzenoid composition consisting essen-tially of Bis-(hydroxyphenyl) compounds in a concentration of at least 50 mole percent of the total Bis-(hydroxyphenyl) compounds added in the monomer compos-itions and polymerizing.
Patent CA-1296897-C (CA)
Title: Carbonless transfer sheets for multi-part forms packs
Inventor: WEINSTEIN PHILIP M
IPC: B41M5/124
Filed: 1988-06-30
Granted: 1992-03-10
Abstract: Abstract Pressure sensitive carbonless transfer sheets are made capable of producing clear images by light impact marking means in multi-part carbonless forms packs containing at least six of the sheets, such as 8-12 sheets, by coating a chromogenic material onto a paper sheet characterized by a basis weight of 9-12 lbs, a thickness of 40-50   microns, a Gurley porosity of 400-4000 seconds, and a Bendtsen smooth-ness of 90-260 ml/min on the wire side and 60-280 ml/min on the felt side.  Bar codes are also trans-ferrable with good scannability through forms packs containing three or more of the sheets.
Patent CA-1341043-C (CA)
Title: Piperazinyl derivatives of purines and isosteres thereof as hypoglycemic agents
Inventor: MACCOSS MALCOLM
IPC: A61K31/44
Filed: 1988-07-19
Granted: 2000-07-04
Abstract: There are disclosed certain 6-piperazino-purines and heteroaromatic derivatives thereof which have oral hypoglycemic activity and with such ability to lower blood sugar are useful in the treatment of type II diabetes and/or obesity with associated insulin resistance. Processes for the preparation of such compounds and compositions containing such compounds as the active ingredient thereof are also disclosed.
Patent CA-1318197-C (CA)
Title: Idle control valve for use with a throttle assembly of an internal combustion engine
Inventor: WAKEMAN RUSSELL J
IPC: F02M3/07
Filed: 1988-09-09
Granted: 1993-05-25
Abstract: ABSTRACT      Idle control valve (10) for use with a throttle assembly of an internal combustion engine includes a valve body (22), and a valve spool (32) mounted within the valve body (22) so as to be rotatable in opposite directions about an axis (26) common to the valve spool (32) and body (22).  The valve spool (32) includes a valve port (36) defining an effective area which establishes the amount of air flow through the valve body (22) between the air inlet (28) and outlet (30) thereof.  Upon rotation of the valve spool (32) by suitable drive structure (as by a DC motor (42) receiving command signals from an engine control unit (44)), the effective area of the valve port (36) will be altered thereby responsively controllably altering the amount of air flowing through the valve body (22) between its inlet (28) and outlet (30).  A clutch assembly (70) precludes the transmission of torque to the valve spool (32) above a predetermined threshold level (as by the valve spool (32) reaching maximum or minimum positions) so that relative slippage occurs between the valve spool (32) and the structure (42, 46, 48) driving same.
Patent CA-1307366-C (CA)
Title: Semiconductive resin composition
Inventor: WATANABE KIYOSHI
IPC: C08K3/04
Filed: 1988-09-09
Granted: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE     A semiconductive resin composition comprising 100 parts  by  weight  of  a  polymer  component  comprising  an ethylene-based  copolymer,  an  ethylene-propylene  rubber, and a low molecular weight polyethylene having an average molecular weight of 1,000 to 4,000, and 40 parts by weight or more of electroconductive carbon black.
Patent CA-1315061-C (CA)
Inventor: BRADFUTE JOHN G
IPC: B32B27/08
Filed: 1988-09-14
Granted: 1993-03-30
Abstract: 64536-661 ABSTRACT OF THE DISCLOSURE Packaging bone-in meat cuts in heat shrinkable thermoplastic vacuum bags will often result in a punctured bag and loss of vacuum. To reduce this problem an abuse resistant bag film is provided wherein at least 30% of the thickness of the film comprises an ionomer. 1/880815.6/PROCFLDR 08/15/88
Patent CA-1310934-C (CA)
Title: Process for recovering trimethoxysilane from a trimethyoxysilane and methanol mixture
Inventor: CHILDRESS THOMAS E
IPC: C07F7/04
Filed: 1988-09-27
Granted: 1992-12-01
Abstract: ABSTRACT        An extractive distillation process for recovering trimethoxysilane from a trimethoxysilane--methanol mixture is provided using as the extractive solvent tetramethoxysilane.
Patent CA-1304155-C (CA)
Title: Lens/polarizer/radome
Inventor: SMITH KEITH C
IPC: H01Q17/00
Filed: 1988-09-28
Granted: 1992-06-23
Abstract: Abstract of the Disclosure An improved Lens/Polarizer/Radome system to modify the antenna pattern of an existing array antenna is shown to consist of a unitary assembly made up of a dielectric lens of appropriate shape, polarization determining means and absorbing means, such assembly being disposed to cover the aperture of the existing array antenna.
Patent CA-1278883-C (CA)
Inventor: HINSBERG WILLIAM D
IPC: H01L21/336
Filed: 1988-09-30
Granted: 1991-01-08
Abstract: Abstract of the Invention PROCESS FOR MAKING SELF-ALIGNING                 THIN FILM TRANSISTORS     A process for making a self-aligned thin film transistor, said process comprising the steps of: (1) providing a gate which comprises a glass substrate, a transparent electrode on top thereof, and a metal electrode on top of said transparent electrode, (2) forming a stack by depositing over said gate a triple layer structure consisting of gate dielectric material, active material and a top passivating dielectric, (3) coating the top of said triple layer with a dual-tone photoresist, (4) exposing said photoresist from the top through a mask having transparent areas, opaque areas and areas transparent to selective wavelengths, using broad band UV light, (5) developing the photoresist by treatment with a solvent, (6) etching the stack with a liquid etchant through to the glass substrate, (7) exposing the photoresist from the bottom through the glass substrate using near UV light, (8) developing the photoresist with a solvent, and (9) etching off the top passivating layer of the stack.
Patent CA-1316626-C (CA)
Title: Cationically curable compositions
Inventor: GUTHRIE JOHN
IPC: C08G16/00
Filed: 1988-10-05
Granted: 1993-04-20
Abstract: ABSTRACT      Cationically curable compositions comprise:    A (i)      phenols and phenoxy silyl ethers of the formula I        wherein Ra and Rb (which may be the same or different) are H or an ortho, para directing activating group for aromatic electrophilic substitution, other than an amine; provided that Ra and Rb are not both H;     X is hydroxy or        wherein R1 and R2 are H, hydrocarbyl having 1-5 carbon atoms, or aryl R3 is H, hydrocarbyl, aryl, hydrocarbylaryl or a halogen-substituted derivative thereof; A (ii)    phenol ethers of the formula                            II             III             IV wherein R4, R5 and R6 which may be the same or different are hydrocarbyl, aryl, hydrocarbylaryl, or a substituted derivative thereof;     A (iii)    ethers of hydroquinone of the formula   V   wherein R4 and R5 are as defined above;            A (iv)     substituted phenol ethers of the formula              VI                         VII                         VIII     wherein R4 and R5 are as defined above and R7 is -C(O)-NH-R8-NH-C(O)-or       -C(O)-R8-C(O)-wherein R8 is a divalent aliphatic, cycloaliphatic or aromatic group;          A (v)     phenolic compounds of the formula              IX   wherein Ra and X are as defined herein Ra is an n-valent radical and 2 ? n ? 4 a compound B selected from B (i)     formaldehyde; and compounds capable of producing formaldehyde in the presence of an acid;     B (ii)     monofunctional aldehydes other than formaldehyde; and compounds capable of producing such aldehydes in the presence of acid B (iii)    multi-functional aldehydes; and compounds capable of producing such aldehydes in the presence of acid;   a compound C which is a latent acid catalyst, activatable by radiation, heat or moisture.  The compositions can be stored and applied (for example in coatings, sealants and adhesives) in the liquid condition, and then cured directly to a solid condition.
Patent CA-1315622-C (CA)
Inventor: ANDERSON ANTHONY T
IPC: F01L1/18
Filed: 1988-10-14
Granted: 1993-04-06
Abstract: Abstract of the Disclosure A low friction finger follower rocker arm is fabricated by starting with a flat metal strip sheet stock section having a stamped configuration with a centralized opening being adapted to be bent later into a channel for such rocker arm.  The shaping and hardening of the stock section is carried out prior to such bending.  The method steps comprise the following: (a) while substantially in the flat condition (i) shaping the strip sheet stock section to have at least a pair of journal openings aligned on opposite sides of said centralized opening, a pivot surface at one end of the strip sheet stock section, a stud contacting surface at the other end of the strip sheet stock section, such surfaces being aligned with the centralized opening along a line transverse to the alignment of said journal openings, and a pair of grooves aligned with the extremities of the centralized opening and containing the surfaces therebetween, (ii) locally hardening the surfaces and the edges of the opposed openings; (b) bending the shaped strip sheet stock section along the grooves to form a partial channel having side walls with an included angle of no greater than 40° and with said journal openings approaching alignment on a common axis; and (c) inserting a journalized low friction wear assembly with its journals in said opposed journal openings, and then completing the bending of said strip sheet stock section so that the sides of the channel are substantially parallel and locking the wear assembly journals to the channel side walls.
Patent CA-1316529-C (CA)
Title: Plate-fin type radiator
Inventor: EJIRI EICHI
IPC: F28F1/32
Filed: 1988-10-17
Granted: 1993-04-20
Abstract: ABSTRACT     A plate-fin  type  radiator  including  a  plurality  of radiating  plates  arranged  at prescribed  distances  and  a number  of  flat  tubes  penetrated  through  said  radiating plates,  characterized in that a vertical flange is formed at the penetrating portion of the flat tube of the radiating plate,  said flange being contacted to the peripheral surface of said flat tube.
Patent CA-1300665-C (CA)
Title: Golf ball retriever
Inventor: ANDERSON ALF
IPC: A63B47/02
Filed: 1988-10-18
Granted: 1992-05-12
Abstract: ABSTRACT OF THE DISCLOSURE The present invention relates to a golf ball retrieving device for removing golf balls from water hazards and other areas that otherwise would be difficult to access.  The device comprises a uniquely shaped net particularly adapted to be removably attached to an end of an existing ball retriever having an extendable shaft.  The net and frame are configured and arranged so as to easily retrieve golf balls from water hazards even when the golf ball is not in plain view.  The device effectively sweeps a substantial portion of terrain as it is retracted toward the user enabling the user to retrieve golf balls that are contained in that area.  The frame is configured to discourage weeds from entering and obstructing the net.
Patent CA-1307046-C (CA)
Title: Tete magnetique d'enregistrement-lecture a couche anti-abrasion et procede de realisation
Inventor: MEUNIER PAUL-LOUIS
IPC: G11B5/31
Filed: 1988-10-26
Granted: 1992-09-01
Abstract: Tête magnétique d'enregistrement-lecture à couche anti-abrasion et procédé de réalisation Structure de tête magnétique comportant une couche (S1, S2) d'un matériau, tel que du Sendust, déposée sur les pôles magnétiques et une couche à base de carbone (Cl) déposée sur la précédente couche. Celle-ci est en matériau magnétique qui a la propriété d'accrocher sur les pôles magnétiques et sur lequel la couche à base de carbone accroche. Application: tête magnétiques d'enregistrement/lecture. FIGURE 1.
Patent CA-1320973-C (CA)
Title: Climbing exercise machine
Inventor: CHARNITSKI RICHARD D
IPC: A63B23/04
Filed: 1988-11-18
Granted: 1993-08-03
Abstract: CLIMBING EXERCISE MACHINE         Abstract An improved climbing exercise machine which has hand grips and foot pedals mounted to reciprocating separate sliding trucks which move within a track structure, wherein the sliding trucks are connected to each other by chains for  mechanically  providing  co-ordinated  leg  and  arm movements that simulate a vertical climbing action in a "homolateral   pattern"  and a  "cross  crawl  pattern".   A change  from a  "homolateral  pattern"  to  a  "cross  crawl pattern" is easily facilitated by a longitudinal opening provided along the center of the track structure whereby the chains lining the right handle to the right foot pedal and the left handle to the left foot pedal, respectively, are interconnected via the longitudinal opening.            ROB-2043:rb
Patent CA-1292519-C (CA)
Inventor: GAILUS PAUL H
IPC: H04B1/10
Filed: 1988-12-08
Granted: 1991-11-26
Abstract: ABSTRACT OF THE DISCLOSURE    An improved apparatus and method for a sigma delta converter for bandpass signals is disclosed, suitable for use in mobile radio applications, between the front end and digital signal processing stages, that includes at least one bandpass filter, an n-level quantizer, an n-level digital-to-analog (D/A) converter, and a direct current (DC) feedback network.  The sigma delta converter for bandpass signals may be configured in a second order or a fourth order embodiment and achieves analog-to-digital conversion of a signal having a non-zero frequency carrier or suppressed carrier with improved signal-to-noise ratio performance and with minimal quantization error.  As a result, the sigma delta conversion occurs earlier in a receiver chain and a dynamic range of about 95-98 dB is achieved.
Patent CA-1316687-C (CA)
Title: Container inspecting apparatus
Inventor: TANIGUCHI SHIN ICHI
IPC: G01N21/90
Filed: 1989-02-09
Granted: 1993-04-27
Abstract: ABSTRACT OF THE DISCLOSURE           An inspecting apparatus comprises an illuminator, a light sensor positioned on one side of the path of move-ment of containers opposite to the illuminator for receiving rays of light which have passed through the container, rays of light reflected from the container and rays of light travelling straight from the illuminator towards the light sensor within  a  predetermined  region  exteriorly  of  the container,  a  detector  for  analyzing  the  rays  of  light received by the light sensor, and a light absorbing member positioned diagonally rearwardly of the container as viewed in a direction from the light sensor towards the illuminator for shielding rays of light passing through the thickness of each of opposite wall portions of the container, whereby a line of shade following the contour of the container can be formed on the side of the light sensor for accentuating the boundary between the container, illuminated by the rays of light from the illuminator,  and the predetermined region exteriorly of the container that is defined by the rays of light travelling straight towards the light sensor.
Patent CA-1327538-C (CA)
Title: Copolymers of (meth) acrylic acid esters as flow improvers in oils
Inventor: RITTER WOLFGANG
IPC: C10L1/18
Filed: 1989-03-07
Granted: 1994-03-08
Abstract: ABSTRACT OF THE DISCLOSURE    Method  of  reducing  the  pour-point  and  improving  the flowability of petroleum oil  or a  fraction thereof by adding thereto a flowability-improving quantity of at least one copolymer of (a) an acrylic acid ester, a methacrylic acid ester, or a mix-ture of an acrylic acid ester and a methacrylic acid ester, and (b)  not more than 20 % by weight, based on the weight of the copolymer,  of acrylic acid, methacrylic acid,  or a mixture of acrylic acid and methacrylic acid, and wherein said esters in com-ponent (a) are esters of a C16 or higher alcohol or an alcohol mixture wherein at least 75% by weight thereof is one or more alcohols containing at least 16 carbon atoms; and the compositions resulting therefrom.