Patents by Inventor Gianfranco Roman

Gianfranco Roman 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: 5562247
    Abstract: An irrigator comprises an oscillating arm (1) formed by a hollow cylinder provided with a longitudinal succession of holes (8) suitable for passage of an irrigation liquid. An operation unit (6) oscillates the arm about its own axis. A cylindrical sleeve (9) is inserted coaxially and rotatably in the oscillating arm, and has thereon at least one surface groove (11) for channeling the irrigation liquid whereby the irrigation liquid is emitted through the holes in the arm aligned with the surface groove. The sleeve has a terminal section (13) and a remaining section (12), and the groove (11) has a terminal groove section in the terminal section of the sleeve and a remaining groove section in the remaining section of the sleeve. The terminal section (13) of the sleeve is rotatable with respect to the remaining section (12) of the sleeve, to allow the terminal groove section to be staggered with respect to the remaining groove section for controlling the flow of irrigation liquid from the oscillating arm.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: October 8, 1996
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: 5540386
    Abstract: A multifunction delivery unit for an irrigation pistol comprises a supporting casing that can be fastened to one end of a delivery pipe of the pistol with a diffusion passage of the casing placed in front of a delivery nozzle obtained at the end of the pipe. A spray selector that supports a plurality of delivery elements suitable for delivering sprays of different shapes is mounted rotatably on the supporting casing so that it can be rotated in order to position a selected delivery element at the outlet from the diffusion.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: July 30, 1996
    Assignee: Claber, S.P.A.
    Inventor: Gianfranco Roman
  • Patent number: 5308011
    Abstract: Supporting side for a hose-winding device. The side has a plurality of parallel ribs and, perpendicularly to them, successions of slots alternated with successions of stiffening elements formed by sections of wall alternated inward and outward from the hose-winding device and provided with stiffening ribs. In the side there are seats for the introduction of ends of a handle element and of a base element. In it there are also a snap-on coupling of a hub of a hose-winding drum and a snap-on coupling for a shaft supporting a pair of wheels.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: May 3, 1994
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: 5101859
    Abstract: The control unit comprises a hollow external casing, an internal bolt rotatable in an internal cavity of said external casing to close and alternately to place in communication with a plurality of different transversal outlets a water inlet obtained axially in said bolt, a reversible electric motor for the rotation of said bolt, a cam element rotatable together with said bolt, and a plurality of electric limit switches co-operating with said cam element. An electronic control circuit with programmable times is provided to operate said electric motor in one direction or the other and up to the engagement of said cam element with one predetermined of said limit switches for the consequent displacement of the bolt in a position of closing said axial inlet or of placing it in communication with one of said transversal outlets. Electric batteries supply power to said electronic circuit and to said electric motor.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: April 7, 1992
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: 5072971
    Abstract: The fitting element is constituted by a male element, with a hollow cylindrical tang having a plurality of ribs, arranged axially and protruding in a radial direction, and by a female element, essentially constituted by a hollow cylidrical casing suitable for receiving tang of male element. On the inside wall of female element there is obtained a plurality of grooves suitable for receiving by axial sliding the corresponding ribs; each of said grooves is flanked by a lateral seat, which receives one of said ribs following the rotation, sebsequent to the axial sliding, of male element.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: December 17, 1991
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: 4986477
    Abstract: A spray gun having a liquid delivery pipe provided with a nozzle openable by an axially movable control member which plugs an axial hole, has an adjustable diffusing member arranged downstream of the nozzle. The diffusing member has a pair of flexible parallel tangs integrally extending forward from the nozzle and a hollow sleeve arranged rotatably to incline the tangs at a selected angle, i.e., at a greater or lesser distance from one another than the diameter of the axial hole. The tangs each have a protruding tooth engaging in a spiral arc in the tightening sleeve collar, whereby rotation of the tightening sleeve collar moves the tangs toward or away from one another, up to extremities of the spiral arcs.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: January 22, 1991
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D295921
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: May 31, 1988
    Assignee: Claber S.p.A.
    Inventors: Oliviano Spadotto, Gianfranco Roman, Claudio Da Rold
  • Patent number: D296947
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: July 26, 1988
    Assignee: Claber
    Inventor: Gianfranco Roman
  • Patent number: D299267
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: January 3, 1989
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D306121
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: February 20, 1990
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D307100
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: April 10, 1990
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D309654
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: July 31, 1990
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D311308
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: October 16, 1990
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D312730
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: December 11, 1990
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D320842
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: October 15, 1991
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D334617
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: April 6, 1993
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D341240
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: November 9, 1993
    Assignee: Claber S.P.A.
    Inventor: Gianfranco Roman
  • Patent number: D343710
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: January 25, 1994
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D358694
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: May 23, 1995
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman
  • Patent number: D377205
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: January 7, 1997
    Assignee: Claber S.p.A.
    Inventor: Gianfranco Roman