Patents Assigned to B.V. Holmatro Industrial Equipment
  • Patent number: 8636376
    Abstract: In one embodiment of the present invention, a lighting element integrated into a handle or hand-grip of a tool is disclosed, including at least one, but preferably two lighting fittings which have a modular constructions such that a lamp holder and a lens holder can be mounted in diverse positions relative to the longitudinal axis, and with which the direction of the light beam can be adjusted to the shape and size of the handle.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: January 28, 2014
    Assignee: B.V. Holmatro Industrial Equipment
    Inventor: Cornelis Johannes Jacobus Antonius Van Gestel
  • Patent number: 8262063
    Abstract: The invention relates to a hydraulic tool, in particular a rescue tool, provided with pivotable parts and with a hydraulic valve system having a double-action hydraulic cylinder connected thereto for driving the pivotable parts, wherein the hydraulic valve system comprises: —a differential valve element (K-7) for providing an increased speed of the outward plunger stroke of the double-action cylinder in a first position and for providing a normal speed thereof in a second position, combined with; —pressure-controlled non-return valves (T-I, T-2) for blocking the plunger of the double-action cylinder when hydraulic pressure is lost.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: September 11, 2012
    Assignee: B.V. Holmatro Industrial Equipment
    Inventor: Adrianus Cornelis Maria Jacobs
  • Publication number: 20090045384
    Abstract: The invention relates to a hydraulic tool, in particular a rescue tool, provided with pivotable parts and with a hydraulic valve system having a double-action hydraulic cylinder connected thereto for driving the pivotable parts, wherein the hydraulic valve system comprises: —a differential valve element (K-7) for providing an increased speed of the outward plunger stroke of the double-action cylinder in a first position and for providing a normal speed thereof in a second position, combined with; —pressure-controlled non-return valves (T-I, T-2) for blocking the plunger of the double-action cylinder when hydraulic pressure is lost.
    Type: Application
    Filed: April 28, 2006
    Publication date: February 19, 2009
    Applicant: B.V. HOLMATRO INDUSTRIAL EQUIPMENT
    Inventor: Adrianus Cornelis Maria Jacobs
  • Publication number: 20070289645
    Abstract: A coaxial coupling comprising a female part and a male part which are couplable to each other is disclosed. The female part and the male part having an inner passage and a concentric outer passage, wherein the inner passage of the female part is fluidly connected to the inner passage of the male part and the outer passage of the female part is fluidly connected to the outer passage of the male part in the coupled state of the coupling, one of the parts further comprising a by-pass valve that guides the fluid flow internally from the inner passage to the outer passage thereof in a non-coupled state of the coupling, the other part comprising an activator for activating the by-pass valve during coupling of the two parts wherein the by-pass valve is adapted to guide the fluid flow from the inner passage of the one part to the inner passage of the other part during coupling of the two parts.
    Type: Application
    Filed: May 13, 2004
    Publication date: December 20, 2007
    Applicant: B.V. HOLMATRO INDUSTRIAL EQUIPMENT
    Inventor: Christiaan Schutz
  • Patent number: 7234683
    Abstract: The invention relates to an electric rescue tool, comprising: a frame (9); a pair of claws (3a, 3b) mounted movably on the flame; a hydraulic drive cylinder (20) received in the frame; a hydraulic pump (11) fixed to the frame; an electric motor (10) fixed to the frame for driving the hydraulic pump; a control unit (19) for controlling the electrical energy to the electric motor and for controlling valves (23) placed between the hydraulic pump and the drive cylinder, a housing (24, 29); and coupling mechanism for coupling a battery (6) to the electric control unit, wherein the coupling mechanism are adapted to couple a battery placed on the housing to the control unit, whereby the battery can be easily gripped by the person operating the electric rescue tool; the person can grasp the battery with one hand, release and place it for instance in a coat pocket, and then take a fresh battery out of another coat pocket with the same hand and place it on the tool.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: June 26, 2007
    Assignee: B.V. Holmatro Industrial Equipment
    Inventor: Christiaan Arnold Schutz
  • Patent number: 6179001
    Abstract: A rapid-action coupling comprising a male part connected to a first and a third conduit and a female part connected to a second and a fourth conduit for releasable mutual connection of at least the first to the second conduit and also for releasable mutual connection of the third conduit to the fourth conduit. The male part and the female part of the rapid-action coupling each comprise a shell formed in one piece and a plurality of connecting channels. At least at the position of the separating surface between the male and the female parts, the connecting channels arranged in the parts are preferably concentric. According to another embodiment the first and the third conduit and the second and the fourth conduit are mutually concentric.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: January 30, 2001
    Assignee: B.V. Holmatro Industrial Equipment
    Inventor: Christiaan A. Schutz