baber/WOPTO huggingface dataset:
Patent CA-2043209-A1 (CA)
Title: Automatic umbrella
Inventor: LIU FU-TIEN
IPC: A45B25/14
Filed: 1991-05-30
Abstract: AUTOMATIC UMBRELLA Abstract of the Disclosure A full self-opening and partial self-closing umbrella comprising an upper rib linkage runner and a lower latch runner slidable on a collapsible center-post.   A  cord passes  over  a  pulley  fixed  to  the centerpost's top end, one cord end being connected to the rib linkage runner and the other cord end being connected to the latch runner.  The umbrella's center-post  and  rib  linkage  self-opens  in  response  to  a centerpost  spring  when  the  rib  linkage  runner  is released from its storage position because the latch runner is held in its storage position, i.e., one end of the cord is held in a fixed position, while the rib linkage runner is allowed to move up the centerpost during the opening step.  In the opened position, and when the latch runner is released,  the rib linkage runner is no longer held in place by the cord.  This causes  closure  springs which  are  part  of  the  rib linkage to collapse the ribs toward the centerpost as the rib linkage runner slides down the centerpost, and as  the  latch  runner  slides  up  the  centerpost  to intermediate closure positions.  Thus the umbrella's cover and rib linkage is collapsed, but the centerpost is  still  fully  extended.   The  centerpost  is  then itself collapsed against the bias of the extension spring until  the rib  linkage and  latch runner are latched in position adjacent the umbrella's handle.          The umbrella also includes a spring guide rod with a cushion  device  for  cushioning  the  impact  forces exerted by the  centerpost  extension  spring as  the umbrella is opened.   Also,  the umbrella includes a safety hook that engages the linkage runner if the umbrella's push button is inadvertently pushed when the umbrella is closed and the umbrella's cover is wrapped with a closure strap.  The safety hook pre-vents the umbrella from opening prematurely when the closure strap is released.
Patent CA-2043569-A1 (CA)
IPC: F01C1/02
Filed: 1991-05-30
Abstract: The present invention relates to a scroll type fluid machinery in which a stationary scroll and a revolv-ing scroll having spiral wraps set up on inner surfaces of end plates, respectively, are engaged with each other at a predetermined angle dislocation and housed in a housing with one end opening of a cup-shaped casing blocked with a front case, the stationary scroll is fixed to the cup-shaped casing, and the revolving scroll is made to revolve in a solar motion by means of a revolution drive mechanism while checking the rotation on its axis by means of a mechanism for checking rotation on its axis, and an assembling method thereof, in which positioning portions which are engaged with a positioning jig are provided in the stationary scroll and the cup-shaped casing, respectively, and the positioning portions are utilized.  With this, number of parts, working mandays and assembly mandays are reduced and the manufacturing cost may be cut down.
Patent CA-2044744-A1 (CA)
Title: Actuator for flashing light
Inventor: ALLAIRE MICHEL
IPC: H05B39/09
Filed: 1991-06-17
Abstract: ACTUATOR FOR FLASHING LIGHT                 Abstract of the Disclosure The actuator is connected in series between the power supply and the flashing light.   It includes a switch which is connected in series between the power supply and the flashing light  so that when the switch is closed the light turns on and when the switch is open the light is turned off.   A comparator controls the opening and closing of the switch at  a frequency determined by an RC timer.          Also,  the duty cycle of the flashing light is controlled by the timer.    A current overload protector lowers the duty cycle of the flashing light as the magnitude of the overload is increased and, in the event of a short circuit, decreases the duty cycle to approximately zero.
Patent CA-2044827-A1 (CA)
Title: Apparatus for electrostatically isolating and pumping conductive coating materials
Inventor: KONIECZYNSKI RONALD D
IPC: B05B12/14
Filed: 1991-06-18
Abstract: APPARATUS FOR ELECTROSTATICALLY ISOLATING AND PUMPING CONDUCTIVE COATING MATERIALS          Abstract of the Disclosure An apparatus for transferring electrically conductive coating materials such as water-based paint from a source to an electrostatically charged dispen-ser includes first and second shuttle devices and two large reservoir,  piston pumps each having structure for preventing contamination of the coating material and  pressure  build-up  at  their piston  heads.   The first  shuttle  device  is  movable between  a neutral position wherein it is electrically isolated from a filling  station  connected  to  the  coating  material source,  and  a  transfer  position  wherein  coating material is transmitted to one of the piston pumps through a coupling device which connects the filling station and first shuttle.  The second shuttle device is movable with respect to a discharge station between a  neutral  position  wherein  the  second  shuttle  is spaced  from  the  discharge  station,  and  a  transfer position wherein coating material is transmitted from the  filled  piston  pump,  through  another  coupling device which connects the second shuttle and discharge station and then to the second piston pump for trans-mission to one or more electrostatic coating dispen-sers.   Movement  of  the  shuttle  is  controlled  to maintain one of the shuttles in the neutral position while the other is at the transfer position.
Patent CA-2046226-A1 (CA)
Inventor: ISHIHARA TAKESHI
IPC: H01M4/86
Filed: 1991-07-04
Abstract: Disclosed is a porous electrode for a solid oxide fuel cell, having one surface on which a solid electrolyte film having an ion conductivity is to be formed.  The porous electrode has pores.  The diameter of the pores on the side of the surface is smaller than the other surface.  Also disclosed is a solid oxide fuel cell including the porous electrode and the solid electrolyte film.  The porous electrode may constitute an air electrode or a fuel electrode.  The power generation efficiency of the solid oxide fuel cell is enhanced by using such porous electrode.
Patent CA-2046327-A1 (CA)
Title: Apparatus for suspending lamellar sun-blinds or the like
Inventor: SCHOEN SIEGFRIED JOACHIM
IPC: E06B9/36
Filed: 1990-12-13
Abstract: Abstract An apparatus for suspending lamellar sun-blinds or the like, which apparatus comprises a profile open on at least one side with guiding, wherein a number of carriers (5) each having a gear transmission (8) and movable along the guiding by means of a control means, a control rod (11) arranged rotatably in and parallel to the profile, which is carried in each case through one of the gears of the transmission (8), a vertical rotating pin (7) with depending member for the slat connected to another gear and sup-ported by the carrier, a spacer strip (66) connected to each of the carriers (5) which is guided slidably in a guiding of the adjacent carrier, wherein the spacer strip (66) is fixed on the side of the carrier such that the blade of the strip is vertically oriented in order to provide a profile dimensioning that is aesthetically well-considered, requires small dimensions particularly in the height and is thereby easy to combine with other profiles for additional applications.
Patent CA-2048605-A1 (CA)
Inventor: BARNES NIGEL E
IPC: H04W12/06
Filed: 1990-11-12
Abstract: The invention concerns a method of on-air registration of a cordless telephone handset with a base station, the method comprising the steps of: arming the handset so that it can indicate that it wants to register with a base station; arming the network to enable it to accept the registration request from the handset;  activating the handset to start transmitting link request words;  causing the base station and the associated network to determine that the link set up is to be used for registration purposes, causing the base station to use the handsets identity to decide if that handset has a pending registration request, and transferring into the handset the registration details over the established link.
Patent CA-2049444-A1 (CA)
Title: Method of detecting state of cutting rubber sheet having parallel cords embedded therein
Inventor: NAGANO JUN
IPC: B29D30/46
Filed: 1991-08-19
Abstract: METHOD OF DETECTING STATE OF CUTTING RUBBER SHEET       HAVING PARALLEL CORDS EMBEDDED THEREIN     Abstract of the Disclosure A state of an operation of cutting a rubber sheet having a number of parallel cords embedded therein by moving a cutter in a cutting direction which is in parallel with a direction in which the cords extend is detected by monitoring a first displacement of the cutter in a direction of a thickness of the rubber sheet and a second displacement of the cutter in direction perpendicular to the cutting direction.  When the first displacement of the cutter exceeds a predetermined threshold value, there is produced a comparison signal having a predetermined time period.  In response to the comparison signal, the second displacement of the cutter is compared with a second threshold value within the time period of the comparison signal, and when the second displacement of the cutter exceeds the second threshold value, there is produced an alarm signal which represents that the cutting operation is not carried out correctly.
Patent CA-2050449-A1 (CA)
Title: Low calorie products
Inventor: VAN DUUREN JOZEF C T
IPC: A23L1/308
Filed: 1991-08-30
Abstract: L 7274 (R) ABSTRACT                 LOW CALORIE PRODUCTS            It is known to employ fat replacers, such as sucrose polyesters in food products, to reduce the fat and/or calorie content of the product. Such fat replacers are expensive as compared with fats. The present invention provides food products comprising at least one trigly-ceride fat, and at least one sugar fatty acid ester as a fat replacer, wherein at least a portion of said fat is present as a population of globules having a mean diameter less than 100 microns, at least a part of said population of globules being invested with a coating of said sugar fatty acid fat replacer such that the globules are pro-tected against the activity of lipase.
Patent CA-2052309-A1 (CA)
Title: Deposition process
Inventor: BARRI SAMI A I
IPC: B01J29/04
Filed: 1991-09-26
Abstract: Case 7642(2) ABSTRACT OF THE DISCLOSURE                       DEPOSITION PROCESS      A process for the deposition of a zeo-type material on a porous metallic support, which comprises immersing at least one surface of the porous metallic support in a synthesis gel which is capable of crystallising to produce a crystalline zeo-type material, and inducing crystallisation of said gel so that zeo-type material crystallises on the support; characterised in that prior to immersion in the gel, said surface of the metallic support has been treated with an acid.
Patent CA-2052770-A1 (CA)
Inventor: LISLE RONALD J
IPC: G10H1/14
Filed: 1991-10-04
Abstract: Variable  frequency sawtooth waveforms are often utilized  as  an  excitation  signal  in  a  digital  musical synthesizer.  A problem exists at lower sampling rates in such systems due to an aliasing problem which occurs at frequencies near the Nyquist rate.  Low pass filtering may be  utilized  to  mask  this  problem;  however,  low  pass filtering is very time consuming to implement in a digital signal processor.  The method and apparatus of the present invention reduces the upper harmonic content of a sawtooth waveform by proportionally converting the sawtooth waveform to a triangle waveform in response to variations in the frequency of the sawtooth waveform.  This is accomplished by adding a selectable offset to the sawtooth waveform and then taking the absolute value of the resultant waveform.   By restoring  this  waveform  to  a  zero  offset,  the  sawtooth waveform excitation signal will be converted to a triangle waveform  having  a  substantially  reduced  upper  harmonic content.  By varying the selectable offset in response to variations in the frequency of the sawtooth waveform, it is possible to efficiently vary the amount of conversion which occurs.
Patent CA-2053917-A1 (CA)
Title: Optical fiber tap utilizing reflector and resilient closure
Inventor: UKEN WILLIAM D
IPC: G02B6/36
Filed: 1990-05-01
Abstract: Abstract A tap for coupling light from an intermediate portion of an optical fiber core and a light element by passing light through a side of the optical fiber includes an optical coupler in contact with an outside surface of an optical fiber which is bent and disposed in a plane. A light reflector extending transverse to the plane deflects the withdrawn light towards the end surface of a light element disposed completely outside the plane. The tap may be used as a read tap to withdraw light, or as a write tap to inject light in optical fiber networks. A spring biased closure member urges the optical fiber to be maintained in bent registration with the optical coupler within the plane. A rail and channel is used to conveniently guide a tap closure member against the optical fiber. Simple tools and general craft training and knowledge may be applied to insert into and remove the optical fiber from the tap.
Patent CA-2054346-A1 (CA)
Inventor: HIGAKI KENJIRO
IPC: H01L39/14
Filed: 1991-10-28
Abstract: There is disclosed a superconducting microwave component comprising a first substrate having a conductor line formed of an oxide superconductor on the surface thereof a second substrate having a grounding conductor formed of an oxide superconductor on the surface thereof; and a package of a conducting material housing the first and the second substrates substantially parallel with each other, at least one part of the grounding conductor being in contact with the inside of the package through surface contact.
Patent CA-2054408-A1 (CA)
Title: Method for compensating for steering angle error in a fully-hydraulic steering system and a fully-hydraulic steering system
Inventor: THOMSEN SVEND E
IPC: B62D5/093
Filed: 1991-10-29
Abstract: A method for compensating for steering angle error in a fully-hydraulic steering system and a fully-hydraulic system are proposed, in which, on displacement of a steering handwheel  (5), a steering handwheel angle and a steering motor angle and also the steering handwheel speed are ascertained, and the fluid flow between a steering control device (4) and a steering motor (8) is changed in dependence on the steering angle error.    With such a method, and with a steering system of this kind, the comfort of an operator when steering is to be increased despite steering angle error compensation.     For that purpose, in the method, is effected at every steering handwheel speed and every steering angle error, the change of the fluid flow being performed in dependence on the steering handwheel speed and the steering angle error.   In the steering system, a multiplier (24) is provided which multiplies the outputs of the difference-generating means and the differentiator together, the output of the multiplier being connected by way of a proportional element (25) to a valve control device (26) connected to pass signals to the valve arrangement.
Patent CA-2056927-A1 (CA)
Title: Safety hood for hypodermic needles
Inventor: ARCUSIN CARLOS E
IPC: A61M5/32
Filed: 1991-12-04
Abstract: ABSTRACT           A  safety  hood  for  a  hypodermic  needle  comprises  a flexible body having a "U" shaped cross section and a closed free end.  The opposite end of the body has a pivot member projecting from the lateral wall thereof and is provided with an integral spring or conventional flip-flop ending in an adapted member.  The free end of the body includes a needle bearing and a vise-wall having cuttings guiding the needle insertion.  This free end also has a pair of locking lugs which project from the parallel side walls of the body and have guide cuttings which act to avoid undesired escape of the needle when placed between them.
Patent CA-2061504-A1 (CA)
Inventor: FRITZSCHE HELLMUT
IPC: H01L21/203
Filed: 1992-02-19
Abstract: A method of growing an epitaxial like, single crystal, superconducting film (28) by promoting the epitaxial-like growth of film from a single nucleation site (24) in deference to substantially all other nucleation sites (29) on the substrate (14). The present invention contemplates the use of a mask (18) to systematically expose sections of the substrate (14) to the deposition apparatus. This mask (18) may include an adjustable or fixed aperture (20B) and is manipulated as herein described to systematically expose areas of the substrate (14) to the deposition plasma (12).
Patent CA-2065514-A1 (CA)
Inventor: BELCOURT GAETAN
IPC: B44C7/06
Filed: 1992-04-07
Abstract: ABSTRACT         A machine is provided for dispensing ice marking tape in a regular manner suitably moistened so that it will adhere to the ice surface.  The pattern described by the applicator is determined by suitable means such as a radius arm which is connected to the centre of any circle which is to be defined or suitable linear guides.  The machine pro-vides a simple method of directly applying markings to ice without multiple step processes being required, such as marking and painting.
Patent CA-2066355-A1 (CA)
Title: Chamber
Inventor: STERNBERG HAL
IPC: A61G10/00
Filed: 1992-04-16
Abstract: A chamber and a closure for said chamber, a stage attached to said closure and at least one feed through in said closure, is disclosed. The chamber is for use in treating an individual under hyperbaric oxygen tension.
Patent CA-2068358-A1 (CA)
Inventor: YAMADA YOSHIHIKO
IPC: G03G15/08
Filed: 1992-05-11
Abstract: A developer supply opening of a developer replenishing cartridge is sealed by a flexible film peelably adhered to the cartridge, and one end of a folded back portion of the film is secured to a gripper which is manipulated by an operator and which is separably mounted on the cartridge.  A developer receiving container on which the cartridge can be mounted has a lid.  When the lid is opened, the lid engages by the gripper to separate the latter from the cartridge.
Patent CA-2069334-A1 (CA)
Title: Mould for injection moulding machines
IPC: B29C45/26
Filed: 1990-10-15
Abstract: SUMMARY       The invention relates to a mould for injection moulding machines, consisting of at least two halves of a mould, each half in turn consisting of a retaining plate and at least one mould insert fitted therein and centred relative to the retaining plate, and the front side of the mould insert is in alignment with the parting surface. The task involved is to ensure that the mould inserts can nevertheless be rapidly and easily replaced.     The device is designed in such a way that the mould insert is held firmly without play, in the axial direction, i.e. transverse to the parting surface, between a thrust block acting on the back of the mould insert and at least one stop in the vicinity of the front side of the mould insert, and the thrust block can be steplessly adjusted in an axial direction relative to the retaining plate. In this way, mould inserts of any desired axial dimension can be used.
Patent CA-2070658-A1 (CA)
Inventor: ELOW DAVID I
IPC: H02K13/00
Filed: 1990-12-05
Abstract: A commutator (10) for a motor is disclosed which includes a plurality of commutator segments (12) arranged in a cylindric array (14) such that the array has a cylindrical outer periphery (20) and two axial ends. An annular recess (26, 28) is formed adja-cent each end (22, 24) of the array so that a portion of each commutator segment (12) forms a part of the radially inner wall of each recess. Two or more rings (34, 36) constructed of an insulating material are provided and one or more rings are press fit into each recess so that the rings (34, 36) exert a radially inward force on the commutator segment (12). The anchoring portions of the commutator segments (12) are then encapsulated with a settable and electrically insulating material (40), such as phenolic. Upon hardening and curing, the phenolic secures the commutator segments (12) together. At the same time, the radially inward force exerted by the rings (34, 36) on the commutator segments (12) serves to stabilize the commutator segments (12) against movement relative to each other during high speed rotation of the commutator (10). A method for manufacturing the commutator is also dis-closed.
Patent CA-2073242-A1 (CA)
Inventor: KREITENBERG ARTHUR
IPC: A43B5/04
Filed: 1991-09-17
Abstract: A ski boot (12) for lessening the incidence of knee injuries when the boot exerts a forward directional force on the skier's leg and includes a foot portion and a leg element (22). The foot portion (16) and the leg element (22) are in a first essentially rigid support position for the foot (20) and lower leg (12) for normal operative skiing position. Releasing means changes the rigid support position for the foot and the lower leg on application of a predetermined level of force by the boot on the wearer. Movement of one element of the leg portion permits the lower leg (12) and foot (16) of the wearer to adopt a second position different to the relative fixed location for normal skiing.
Patent CA-2073335-A1 (CA)
Title: Devices and methods for reading identification marks on semiconductor wafers
Inventor: HINE DEREK L
IPC: G06V10/22
Filed: 1991-01-09
Abstract: Methods and apparatus for machine reading of identification marks incised on semiconductor wafers. Preferred apparatus makes it possible to view the mark either as a dark image on a light background (which is in itself novel) or as a light image on a dark background. Using a television camera (7) and an optical character reader, the viewing method can be changed automatically if a preset confidence level is not reached, and provides a signal if neither method (or the combination of the two methods) gives a satisfactory result. The method is particulary useful for successively reading the identification marks on a number of wafers (41, 42, 43...) stacked in a cassette (4). Preferred apparatus for such reading comprises a wafer support (6) which can be pushed upwards from underneath the cassette (4) so that the wafer to be identified rests on one ledge (63) of the support and the adjacent wafer rests on another higher ledge (64) on the support, thus exposing and precisely locating the identification mark on the first wafer.
Patent CA-2073409-A1 (CA)
Title: Light beam position detection and control apparatus employing diffraction patterns
Inventor: SULLIVAN PAUL F
IPC: H04N1/113
Filed: 1992-07-09
Abstract: Title:  LIGHT BEAM POSITION DETECTION AND CONTROL APPARATUS EMPLOYING DIFFRACTION PATTERNS            ABSTRACT OF THE INVENTION         In an electronic image printing apparatus of the type in which a light sensitive image recording layer is exposed by a light beam,  an apparatus is provided for determining and controlling the position of the light beam which comprises one or two alternating pluralities of  diffraction  grating  patterns   disposed   in   a corresponding relationship with at least a portion of the light  sensitive  image  recording  layer to produce  a diffraction grid which when irradiated by the light beam provides a diffracted beam which is representative of the position of the light beam on the diffraction grid.  The position of the diffracted beam is detected to provide the requisite signal for controlling the position of the light beam.
Patent CA-2078592-A1 (CA)
Title: Coin operated vending machine
Inventor: SCHWARZLI JOSEF W
IPC: G07F11/44
Filed: 1992-09-18
Abstract: An improvement in a coin operated vending machine for vending bulk articles comprises means for preventing loose articles at the entrance to the dispensing aperture.  The means comprises a resilient rolling member, extending across an entry notch to a housing shielding the aperture, and rotating in a direction opposite to the direction of revolution of an advancing dispensing wheel, thus gripping and ejecting bulk articles in the vicinity of the entry notch.