Patents by Inventor Mordeki Drori

Mordeki Drori has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6575189
    Abstract: An automatic valve includes a housing having an inlet passage and a passage to outlet, a linearly movable shaft disposed in the housing having two stops separated by a predetermined distance, a hydraulic unit connected to the housing and to the linearly movable shaft, and a sealing flange having at least one aperture accommodating the linearly movable shaft. The sealing flange being movable on the linearly movable shaft to close and open the passage to outlet through force of one of the stops on the sealing flange, the linearly movable shaft being biased to urge the sealing flange toward the passage to outlet by contact with one of the stops wherein the sealing flange in position to close the passage to outlet from the inlet passage despite limited movement of the linearly movable shaft.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: June 10, 2003
    Inventor: Mordeki Drori
  • Publication number: 20030089657
    Abstract: A fluid filter comprising a housing defining a fluid inlet and a fluid outlet, a filter element defining an upstream surface communicating with the fluid inlet and a downstream cylindrical surface communicating with the fluid outlet, the filter element comprising a stack of filter disks defining a hollow volume interiorly thereof and a longitudinal axis, and backflushing means for removing filtered out sediment from the filter element comprising an axially displaceable backflushing nozzle assembly disposed within the hollow volume comprising a rotating head coupled to the fluid inlet and having fluid outlet means, arranged to provide a generally radially directed pressurized jet and rotational motion of the rotating head.
    Type: Application
    Filed: January 17, 2003
    Publication date: May 15, 2003
    Inventor: Mordeki Drori
  • Publication number: 20020117204
    Abstract: An automatic valve includes a housing having an inlet passage and a passage to outlet, a linearly movable shaft disposed in the housing having two stops separated by a predetermined distance, a hydraulic unit connected to the housing and to the linearly movable shaft, and a sealing flange having at least one aperture accommodating the linearly movable shaft. The sealing flange being movable on the linearly movable shaft to close and open the passage to outlet through force of one of the stops on the sealing flange, the linearly movable shaft being biased to urge the sealing flange toward the passage to outlet by contact with one of the stops wherein the sealing flange in position to close the passage to outlet from the inlet passage despite limited movement of the linearly movable shaft.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 29, 2002
    Inventor: Mordeki Drori
  • Patent number: 6318563
    Abstract: A fluid filter comprising a housing defining a fluid inlet and a fluid outlet, a filter element defining an upstream surface communicating with the fluid inlet and a downstream cylindrical surface communicating with the fluid outlet, the filter element comprising a stack of filter disks defining a hollow volume interiorly thereof and a longitudinal axis, and backflushing means for removing filtered out sediment from the filter element comprising an axially displaceable backflushing nozzle assembly disposed within the hollow volume comprising a rotating head coupled to the fluid inlet and having fluid outlet means, arranged to provide a generally radially directed pressurized jet and rotational motion of the rotating head.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: November 20, 2001
    Inventor: Mordeki Drori
  • Publication number: 20010008219
    Abstract: A fluid filter comprising a housing defining a fluid inlet and a fluid outlet, a filter element defining an upstream surface communicating with the fluid inlet and a downstream cylindrical surface communicating with the fluid outlet, the filter element comprising a stack of filter disks defining a hollow volume interiorly thereof and a longitudinal axis, and backflushing means for removing filtered out sediment from the filter element comprising an axially displaceable backflushing nozzle assembly disposed within the hollow volume comprising a rotating head coupled to the fluid inlet and having fluid outlet means, arranged to provide a generally radially directed pressurized jet and rotational motion of the rotating head.
    Type: Application
    Filed: February 28, 2001
    Publication date: July 19, 2001
    Inventor: Mordeki Drori
  • Patent number: 6196395
    Abstract: An external regeneration mechanism including a housing having two chambers and a displaceable member disposed between said two chambers and at least two passages are defined on said housing. The first passage is communicating with the first chamber and the filter outlet and the second passage is communicating with the second chamber and the filter inlet of same filter. A rod having an external handle is coupled to said displaceable member and is adapted to move by an external source of power said displaceable member linearly back and forth in order to dislodge particles and filter aid material from the external surface of the filter element.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: March 6, 2001
    Inventor: Mordeki Drori
  • Patent number: 6171495
    Abstract: The present invention relates to a method and apparatus incorporating an automatic, three-way valve having inlet, outlet and drain passages and a close-open timing mechanism. The timing mechanism is adjusted to a predetermined period of time in order to close the drain passage and then open the outlet passage or vice-versa automatically after a predetermined period of time in response to the starting or stopping of an external source of pressurized fluid being directed to the three-way valve.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: January 9, 2001
    Inventor: Mordeki Drori
  • Patent number: 5964554
    Abstract: A key duplicating machine and the method of operating the machine wherein one or more key cutters move linearly along an axis perpendicular to the rotation of the key cutters. The linear movement enables the cutters to precisely cut a single sided or double sided key blank to a profile corresponding to the key to be duplicated. In addition, the key to be duplicated and the key blank are clamped together in a single operation in one clamping unit with one clamping force.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: October 12, 1999
    Assignee: Mordeki Drori
    Inventor: Mordeki Drori
  • Patent number: 5858231
    Abstract: A fluid filter comprising a housing defining a fluid inlet and a fluid outlet, a filter element defining an upstream surface communicating with the fluid inlet and a downstream cylindrical surface communicating with the fluid outlet, the filter element comprising a stack of filter disks defining a hollow volume interiorly thereof and a longitudinal axis, and backflushing means for removing filtered out sediment from the filter element comprising an axially displaceable backflushing nozzle assembly disposed within the hollow volume comprising a rotating head coupled to the fluid inlet and having fluid outlet means, arranged to provide a generally radially directed pressurized jet and rotational motion of the rotating head.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: January 12, 1999
    Inventor: Mordeki Drori
  • Patent number: 5545321
    Abstract: A fluid filter comprising a housing defining a fluid inlet and a fluid outlet, a filter element defining an upstream surface communicating with the fluid inlet and a downstream cylindrical surface communicating with the fluid outlet, the filter element comprising a stack of filter disks defining a hollow volume interiorly thereof and a longitudinal axis, and backflushing means for removing filtered out sediment from the filter element comprising an axially displaceable backflushing nozzle assembly disposed within the hollow volume comprising a rotating head coupled to the fluid inlet and having fluid outlet means, arranged to provide a generally radially directed pressurized jet and rotational motion of the rotating head.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: August 13, 1996
    Inventor: Mordeki Drori
  • Patent number: 5496138
    Abstract: A key duplicating machine and the method of operating the machine wherein one or more key cutters move linearly along an axis perpendicular to the rotation of the key cutters. The linear movement enables the cutters to precisely cut a single sided or double sided key blank to a profile corresponding to the key to be duplicated. In addition, the key to be duplicated and the key blank are clamped together in a single operation in one clamping unit with one clamping force.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: March 5, 1996
    Inventor: Mordeki Drori
  • Patent number: 5393423
    Abstract: A disk-type filter comprising a housing having an inlet connectable to an upstream pipe and an outlet connectable to a downstream pipe, and a stack of filter units disposed within said housing for separating solid particles from a fluid flowing between filter units in said stack of filter units from an upstream side of said stack of filter units to a downstream side thereof, characterized in that said stack of filter units includes a plurality of co-operating filter units defining a plurality of paired co-operating filter surfaces, including first and second surfaces each defining a plurality of fingers, said fingers defined by said first surface being arranged in registration with said fingers defined by said second surface, the exteriors of said fingers defined by said first and second surfaces communicating with either one of an upstream side and a downstream side and the interiors of said fingers defined by said first and second surfaces communicating with the other one of said upstream side or downstream
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: February 28, 1995
    Inventor: Mordeki Drori
  • Patent number: 5328604
    Abstract: A fluid filter comprising a housing having a central aperture formed in the bottom thereof, a filter element disposed in the housing and arranged to receive a flow of fluid to be filtered from an upstream side of the element to a downstream side thereof, and a fluid inlet and outlet manifold disposed at the bottom of the housing in communication with the central aperture for providing fluid inlet and outlet communication through said aperture with a fluid inlet and a fluid outlet.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: July 12, 1994
    Inventor: Mordeki Drori
  • Patent number: 5316676
    Abstract: A filter element comprising at least one coiled filter strip defining first and second butt ends, one of the butt ends being arranged to define an upstream surface during normal filtering operation, receiving fluid to be filtered, and the other of the butt ends being arranged to define a downstream surface during normal filtering operation, through which filtered fluid leaves the coiled strip.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: May 31, 1994
    Inventor: Mordeki Drori
  • Patent number: 5228993
    Abstract: A cleanable filter system including a housing defining an inlet for fluid to be filtered and an outlet for filtered fluid, a stack of filter disks disposed within the housing and defining an upstream surface communicating with the inlet and a downstream surface communicating with the outlet and filter disk cleaning apparatus including a plurality of nozzles coupled to a source of backflushing fluid and providing a high pressure stream of fluid impinging on the downstream surface, and apparatus for providing both linear and rotational motion of the plurality of nozzles relative to the downstream surface thereby to result in systematic scanning of generally all of the filter disks.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: July 20, 1993
    Inventor: Mordeki Drori
  • Patent number: 5213684
    Abstract: A disk-type filter comprising a housing having an inlet connectable to an upstream pipe and an outlet connectable to a downstream pipe, and a stack of filter units disposed within said housing for separating solid particles from a fluid flowing between filter units in said stack of filter units from an upstream side of said stack of filter units to a downstream side thereof, characterized in that said stack of filter units includes a plurality of co-operating filter units defining a plurality of paired co-operating filter surfaces, including first and second surfaces each defining a plurality of fingers, said fingers defined by said first surface being arranged in registration with said fingers defined by said second surface, the exteriors of said fingers defined by said first and second surfaces communicating with either one of an upstream side and a downstream side and the interiors of said fingers defined by said first and second surfaces communicating with the other one of said upstream side or downstream
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: May 25, 1993
    Inventor: Mordeki Drori
  • Patent number: 5186825
    Abstract: A fluid filter including a housing defining a fluid inlet and a fluid outlet and a filter element defining an upstream surface communicating with the fluid inlet and a downstream surface communicating with the fluid outlet, the filter element including at least one group of disk-like elements including at least one element of relatively fine porous material, having disposed on both sides thereof disk elements of a relatively coarse porous material, each of the at least one groups having disposed on both sides thereof a grooved spacer element.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: February 16, 1993
    Inventor: Mordeki Drori
  • Patent number: 5176829
    Abstract: A disk-type filter comprising a housing having an inlet connectable to an upstream pipe and an outlet connectable to a downstream pipe and a stack of filter units disposed within the housing for separating solid particles from a fluid flowing between filter units in the stack of filter units from an upstream side of the stack of filter units to a downstream side thereof, characterized in that the stack of filter units includes a plurality of co-operating filter units defining a plurality of paired co-operating filter surfaces, including first and second surfaces each defining a plurality of fingers, the fingers defined by the first surface being arranged in registration with the fingers defined by the second surface, the exteriors of the fingers defined by the first and second surfaces communicating with either one of an upstream side and a downstream side and the interiors of the fingers communicating with the other one of the upstream side or downstream side, spaces being defined in association with the fin
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: January 5, 1993
    Inventor: Mordeki Drori
  • Patent number: 5174895
    Abstract: A filter element comprising at least one coiled filter strip defining first and second butt ends, one of the butt ends being arranged to define an upstream surface during normal filtering operation, receiving fluid to be filtered, and the other of the butt ends being arranged to define a downstream surface during normal filtering operation, through which filtered fluid leaves the coiled strip.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: December 29, 1992
    Inventor: Mordeki Drori
  • Patent number: RE34218
    Abstract: A filter including a plurality of filter discs each formed with a central opening and disposed in a stack within a filter housing with the side faces of adjacent discs contacting each other for filtering the fluid flowing through the housing from its inlet to its outlet, the filter discs being maintained in a stack by a plurality of axially-extending rods arranged in a circular array around the outer faces of the discs and circumferentially spaced from each other to permit the filter disc stack to be cleaned by passing a cleaning nozzle through the central openings of the filter discs in the stack.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: April 13, 1993
    Inventor: Mordeki Drori