Patents Assigned to Arad Dalia
  • Patent number: 7281437
    Abstract: A flow measuring system, e.g., a water meter, includes a non-limiting flow compensating basket and/or a vane wheel of the invention. The basket has a hollow cylindrical member having an open end and an opposite end, sidewall of the cylindrical member having a plurality of spaced banks with solid sidewall portions between adjacent banks. Each of the banks has a plurality of holes arranged in rows and columns, wherein the distance between the banks, the number of rows in the banks, the number of columns in the banks, and/or the size of the holes in the banks is varied to control the fluid flow through the banks. The vane water wheel has a center of buoyancy higher than its center of gravity.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: October 16, 2007
    Assignee: Arad Dalia
    Inventor: Eli Berkovitch
  • Publication number: 20060090572
    Abstract: A flow measuring system, e.g., a water meter, includes a non-limiting flow compensating basket and/or a vane wheel of the invention. The basket has a hollow cylindrical member having an open end and an opposite end, sidewall of the cylindrical member having a plurality of spaced banks with solid sidewall portions between adjacent banks. Each of the banks has a plurality of holes arranged in rows and columns, wherein the distance between the banks, the number of rows in the banks, the number of columns in the banks, and/or the size of the holes in the banks is varied to control the fluid flow through the banks. The vane water wheel has a center of buoyancy higher than its center of gravity.
    Type: Application
    Filed: June 7, 2005
    Publication date: May 4, 2006
    Applicant: Arad Dalia, Ltd.
    Inventor: Eli Berkovitch
  • Patent number: 6386029
    Abstract: A multiple pipeline orientation water meter that includes a water meter arrangement having a water meter and a pipe connector. The water meter body coacts with the pipe connector to permit proper installation of the water meter in various piping orientations.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: May 14, 2002
    Assignee: Arad Dalia, Ltd.
    Inventors: Oded Katzman, Moshe Dror
  • Patent number: 6178816
    Abstract: A multiple pipeline orientation water meter that includes a water meter arrangement having a water meter and a pipe connector. The water meter body coacts with the pipe connector to permit proper installation of the water meter in various piping orientations.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 30, 2001
    Assignee: Arad Dalia, Ltd.
    Inventors: Oded Katzman, Moshe Dror
  • Patent number: 5698781
    Abstract: A fire service meter that includes a strainer, a high flow water meter, a low flow water meter and a check valve fluidly coupled together. The check valve includes a sealing member or clapper adapted to seal against a valve seat. A shaft is secured to the clapper via a pivot arm. The shaft has a portion that extends externally of a body of the check valve. A bracket is secured to the external portion of the shaft. Two springs are provided each having one end attached to the bracket and their opposite ends attached to the body. The springs are arranged so that in a first position both springs apply a closing moment to the bracket so as to force the clapper in a closed position. As a pressure differential increases across the clapper and forces the clapper to move away from the valve seat, the position of the springs change so that one of the springs applies an opening moment to the bracket so as to decrease the amount of head loss associated with the opening of the clapper.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: December 16, 1997
    Assignee: Arad Dalia Ltd.
    Inventor: Amram Zellering