Patents Represented by Attorney Benjamin J. Barish

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  • Methods and apparatus particularly useful for blind deconvolution
    Patent number: 5283813
    Abstract: A method and apparatus for controlling an equalizer receiving the output of an unknown system in order to produce a desired response for recovering the input to the system are characterized by iteratively adjusting the equalizer such that the unknown system combined with the equalizer behaves essentially as a linear system whose (t,n) taps, for some combinations of t and n, are iteratively adjusted according to the following rule: ##EQU1## where s.sub.t,n denotes the (t,n) tap before the iteration, s'.sub.t,n denotes the (t,n) tap after the iteration, I is a preselected integer greater then or equal to one, .alpha..sub.i i=1,2 . . . I are preselected scalars that may vary from iteration to iteration, and p.sub.i, q.sub.i i=1,2, . . . I are preselected non-negative integers such that p.sub.i +q.sub.i .gtoreq.2.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: February 1, 1994
    Assignee: Ramat University Authority for Applied Research & Industrial Development Ltd.
    Inventors: Ofir Shalvi, Ehud Weinstein
  • Method and apparatus for making drip irrigation devices
    Patent number: 5282916
    Abstract: A method and apparatus for making a drip irrigation device by continuously extruding a tube and simultaneously feeding a plurality of dripper units in succession within the tube as it is extruded. Each dripper unit is arrested as it arrives at a first location which is a short distance downstream of the extrusion head where the extruded tube is still tacky, and is then moved transversely to bring it into light contact with the tacky surface of the extruded tube to cause the dripper unit to lightly adhere to the tube and to begin to move axially with it. A short distance downstream of the first location where the dripper unit has attained the same axial velocity as the extruded tube, the dripper unit is pressed into firm bonding contact with the tacky inner surface of the extruded tube.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: February 1, 1994
    Assignee: Hydromatic Ltd.
    Inventor: Shlomo Bloom
  • Process for producing pastry products
    Patent number: 5281427
    Abstract: A process to produce different kinds of pastries in which an extruder forms regular discs of dough with a controlled thickness and diameter by etruding dough through a central opening of a lower circular plate which is heated and to which an upper plate descends to an adjustable distance. For producing samoosas thin discs of dough are formed which are partly cooked at one side, stacked and further pressurized and heated. Each disc is cut into four quarters in which triangles are inscribed with their top on the middle of the circular side of each quarter. Filling material is charged in the middle of each triangle whereupon the four quarters are simultaneously folded into triangles, firstly along the sides and then along the bottom by using three hinged plates, one set for each quarter to be folded. For producing filled tortillas the partly cooked disc of dough is filled and rolled by a rolling machine.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: January 25, 1994
    Inventor: Salim K. Rahim
  • Method and apparatus for detecting hydrocarbon vapors in a monitored area
    Patent number: 5281816
    Abstract: A method and apparatus for detecting the presence of a predetermined hydrocarbon vapour of a predetermined concentration in a monitored area by: exposing gas in or from the monitored area to radiation from a Xenon flashlamp which includes ultraviolet radiation of a predetermined ultraviolet spectral range and infrared radiation of a predetermined infrared spectral range; detecting the radiation after having passed through the gas; and comparing the detected radiation with a reference of predetermined attenuation characteristics of the hydrocarbon vapour and concentration in the respective ultraviolet and infrared spectral range.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: January 25, 1994
    Assignee: Spectronix Ltd.
    Inventors: Esther Jacobson, Yechiel Spector, Ephraim Goldberg
  • Dispenser accessory to facilitate loading bottles in a dispenser
    Patent number: 5280764
    Abstract: An accessory effective to pierce the seal closing the mouth of a bottle when the bottle, filled with a pourable material, is applied in inverted position to a well of a dispenser, with a shoulder of the bottle engaging a rim of the well to support the bottle in inverted position in the well. The accessory is placed in the well of a dispenser and includes a collar placeable against the rim of the well before the bottle is inserted in inverted position into the well. A piercing member is carried by the collar for piercing the bottle seal when the bottle is placed in inverted position into the collar.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: January 25, 1994
    Inventor: Maxim D. Levinrad
  • Transdermal or interdermal drug delivery devices
    Patent number: 5279544
    Abstract: A transdermal drug delivery device includes a liquid reservoir for a liquid drug to be delivered, and a drug delivery body which includes a plurality of tubular elements extending through the body, each having an inlet end communicating with the liquid reservoir, and an outlet end engageable with the subject's skin to conduct the liquid drug directly to the subject's skin.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: January 18, 1994
    Assignee: Sil Medics Ltd.
    Inventors: Joseph Gross, Shlomo Zucker
  • Adaptor for use with electrofusion fittings
    Patent number: 5277456
    Abstract: An adaptor for use with an electrofusion fitting for enabling a thermoplastic pipe to be coupled to a dissimilar pipe includes a housing sleeve for coupling at one end to the dissimilar pipe with the opposite end being formed on its outer surface with an annular ribbed section covered by a plastic sleeve. An anchoring ring overlies the annular ribbed section of the housing sleeve and is effective to firmly anchor the plastic sleeve to the annular ribbed section of the housing sleeve during electrofusion of the plastic sleeve to one end of an electrofusion fitting, and of the plastic pipe to the opposite end of the electrofusion fitting.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: January 11, 1994
    Assignee: Plasson Margan Michael Industries Ltd.
    Inventors: Zalman Mer, Ernest Lever
  • Light bulb assembly particularly useful for miniature lamps
    Patent number: 5278741
    Abstract: A light bulb assembly includes a light bulb, a base receiving the light bulb, and a socket receiving the base. The base is formed with a displaceable arm terminating in a locking element. The socket is formed with an opening through a wall having an edge adapted to receive the locking element to lock the base to the socket. The base is releasable from the socket by passing a pointed implement through the opening to displace the finger and thereby to release the locking element.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: January 11, 1994
    Assignee: Silvestri Corporation
    Inventor: Moshe Ehrman
  • Movement detector and apnea monitor including same
    Patent number: 5271412
    Abstract: A movement detector particularly useful as an apnea monitor includes a piezoelectric crystal transducer, a supporting member on one side of the transducer, and a collector member on the opposite side of the transducer and having an effective area, as circumscribed by its outer edges, which is at least fifty times the surface area of the respective side of the transducer, for collecting the forces applied at that side of the transducer and for applying them to the transducer.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: December 21, 1993
    Inventors: Haim Shtalryd, Victor Yotam
  • Method and kit for indicating the level of oral microbial activity
    Patent number: 5270174
    Abstract: The invention provides a method for indicating the level of oral microbial activity comprising providing a sterile liquid for introduction into the oral cavity for swishing therein, providing a transparent vessel having therein an indicator which undergoes a characteristic color change in the presence of oxygen-consuming microbes and placing the swished liquid together with nutrients to enhance microbial growth in the vessel, whereby the indicator undergoes a color change as a function of time, which color change is an indication of the level of microbial activity in the swished expectorated liquid. The invention also provides a kit for use in carrying out the method comprising a sterile liquid, a transparent vessel for use in receiving the expectorate, and an indicator to be provided in the vessel to produce a visual indication of the level of microbial activity in the expectorated liquid.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: December 14, 1993
    Assignee: Assif Science and Technology Projects Development Ltd.
    Inventor: Melvyn Rosenberg
  • Water sprayer assembly and fluid coupling device particularly useful therein
    Patent number: 5261607
    Abstract: A water sprayer assembly particularly useful for spraying trees includes a ground stake insertable into the ground, and a housing fixed to the ground stake at its upper end. The housing includes a water sprayer at its upper end for spraying water from under a tree, a first coupling device for coupling the housing to a water supply pipe, and a second coupling device for coupling the housing to one end of a water feed tube having a water sprayer at its opposite end attachable to a tree for spraying water to prevent freezing or undue heating of the tree.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: November 16, 1993
    Inventor: Peretz Rosenberg
  • Liquid material dispenser
    Patent number: 5246147
    Abstract: A liquid material dispenser includes a housing formed with a reservoir for the liquid to be dispensed, an outlet through which the liquid is to be dispensed, and a connecting passageway between the reservoir and the outlet. A diaphgram is located in a cavity in the passageway such that one side of the diaphragm defines a pumping chamber, and the other side defines a control chamber. An electrolytic cell generates a gas to the control chamber according to the quantity of electrical current passed through the electrolyte, for driving the diaphragm through forward strokes to pump liquid to the outlet; and a slow-acting vent vents the gas from the control chamber to the atmosphere at a rate lower than that of generation of gas by the electrolytic cell, for driving the diaphragm through return strokes to refill the pumping chamber.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: September 21, 1993
    Assignee: Sil Medics Ltd.
    Inventor: Joseph Gross
  • Queue monitoring and/or control system
    Patent number: 5245163
    Abstract: A queue monitoring and/or control system for monitoring and/or controlling a queue of persons waiting for service by a plurality of clerks. A card dispenser dispenses sequentially-numbered cards to persons as each joins the end of the queue; a card reader for each clerk for reading the card number when received by the clerk from each person as each reaches a clerk at the beginning of the queue. A real time clock for indicates the queue joining time for each card dispensed by the dispenser to a person when joining the end of the queue, and the clerk reaching time for each card read by the card readers as each person reaches a clerk at the beginning of the queue. A data processor processes the above data according to permissible queue parameters.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: September 14, 1993
    Assignee: The Taylor Institute for Industrial Management Science Ltd.
    Inventor: Abraham Bar-Yehuda
  • Plural-sheet holder
    Patent number: 5242236
    Abstract: A holder for holding a plurality of sheets formed with holes adjacent at least one of their edges, comprising: a backing member; at least one slide slidable along each end of a track extending along the width of the upper end of the backing member; and a cord or pair of cords carried by at least one slide and receivable through the openings of a plurality of sheets. The cords include mating connectors at one end to permit the plurality of sheets to be secured together, while the opposite ends of the cords are secured to a length-varying device enabling the effective lengths of the cords to be varied according to the number of sheets to be secured by the cords. In one described embodiment, the length-varying device is a "Velcro" hook and loop fastener; and in a second described embodiment, it is a reel.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: September 7, 1993
    Inventor: Leah Isac
  • Liquid delivery device particularly useful for delivering drugs
    Patent number: 5242406
    Abstract: A delivery device for delivering a liquid containing a drug includes a first diaphragm within a housing defining a first contractible-chamber on one side of the diaphragm for holding a supply of the liquid to be delivered, and a second contractible chamber on the opposite side of the diaphragm including an electrolytic cell capable of generating a gas according to the electrical current passed through the cell electrolyte. The device further includes a second diaphragm, a control valve, and a spring, for compensating the rate of delivery of the liquid for variations in ambient pressure and temperature.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: September 7, 1993
    Assignee: Sil Medics Ltd.
    Inventors: Joseph Gross, Shlomo Zucker
  • Drip irrigation apparatus
    Patent number: 5236130
    Abstract: A drip irrigation unit for insertion into a water supply pipe for reducing the flow through an outlet opening in the water supply pipe, includes a cylindrical member of a deformable elastomeric material fixed within the water supply pipe. The cylindrical member is formed with an inlet opening therethrough for conducting water from the interior of the water supply pipe to the outer face of the cylindrical member, and an outlet cavity in the outer face of the cylindrical member alignable with the outlet opening in the water supply pipe. A regulated flow-reducing pathway between the inlet opening and outlet cavity includes multiple, series-connected pressure-compensating chambers whose cross-sectional areas are changed by the deformation of the elastomeric cylindrical member to regulate the flow of the water in response to changes in the water supply pressure.
    Type: Grant
    Filed: February 4, 1992
    Date of Patent: August 17, 1993
    Assignee: Lego M. Lemelshtrich Ltd.
    Inventor: Yoram Hadar
  • Demodulating method and apparatus particularly for demodulating a differential phase-shift keying signal
    Patent number: 5237287
    Abstract: A method and apparatus are described for demodulating a modulated signal having a carrier component and a data component, in which the modulated signal is split into at least two parts one of which is delayed with respect to the other, and the two parts are multiply-coupled and linearly-combined to produce a combined output corresponding to a function of the data component independent of the carrier component frequency. In the described method and apparatus the undelayed part is coupled with the delayed part in a multiport coupler, wherein the parts are relatively phase-shifted to produce a plurality of phase-shifted signals; and the phase-shifted signals are linearly combined such that the data component, in the function of the combined output, is not affected by variations in frequency or phase of the carrier component. This enables a robust direct-detection DPSK receiver.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: August 17, 1993
    Assignee: Technion Research and Development Foundation Ltd.
    Inventor: Israel Bar-David
  • Method and apparatus for smoothing out phase fluctuations in a monitored signal
    Patent number: 5235290
    Abstract: A method and apparatus for smoothing out phase fluctuations in a monitored input signal by: detecting the partial-cycle differences in phase between the input signal and a reference signal, and generating a first error signal representing the partial-cycle differences in phase; detecting full-cycle differences in phase between the input signal and the reference signal, and generating a second error signal representing the full-cycle differences in phase; and utilizing the first and second error signals for smoothing out the phase fluctuations in the input signal.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: August 10, 1993
    Inventor: Israel Bar-David
  • Splint
    Patent number: 5232435
    Abstract: A splint includes a pair of hingedly-mounted frame sections for receiving the two limbs of the patient. Each frame section includes two frame members secured together to occupy a common plane, and an intermediate member pivotally mounted to the first frame member from an inoperative position in the common plane between the frame members, either to a first operative position on one side of the common plane or to a second operative position on the other side of the common plane. A flexible strip is joined between the second frame member and the intermediate member, and is of a width larger than the spacing between the frame members so as to form a curved bed for supporting the right limb of the patient when the intermediate member is in its first operative position, or the left limb of the patient when the intermediate member is in its second operative position.
    Type: Grant
    Filed: February 4, 1992
    Date of Patent: August 3, 1993
    Inventor: Saul Leibinsohn
  • Hand bell
    Patent number: D343805
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: February 1, 1994
    Assignee: Halilit Export (1974) Ltd.
    Inventor: Yitzhak Bar-Yona