Burner/hot air generator apparatus of the extender type
AssigneeSefmat
InventorFrancois Clement
Life of this patent
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Abstract
The invention relates to an apparatus comprising an injection device (1) for producing a flow of a high-speed combustible gas mixture, and a burner head (2) in which said flow is injected through a tabular extender (70) connecting said injection device (1) to said head (2). The extender has a maximal length higher than 600 mm and includes at the gravity center of the device assembly, means for suspension to a portion of the operator's body.
Claims9
A hot air generator device comprising an injection device capable of producing a flow of combustible gas mixture at high velocity, said injection device including tubing comprising a convergent back section, a divergent front section, an injection nozzle mounted in the convergent section and connected to a source of pressurized gas, an opening for letting through air located in an annular area comprised between said nozzle and said back section, and a first handle mounted on said tubing and a burner head, in which said flow is injected via a tubular extender connecting said injection device to said head, said device further comprising an extractable and/or retractable holding device, mounted on the injection device, said holding device being intended to be supported on the forearm of the operator when the latter holds the device with the first handle with which the injection device is equipped, the holding device being formed by a rod having a rectilinear portion, extending on one side with a bent portion in a plane perpendicular to the axis of the rectilinear portion and wherein the rectilinear portion engages into a sliding bearing provided on the injection device and with an axis parallel to the latter, said sliding bearing being equipped with a device for axially and rotatably blocking the rod.
A hot air generator device comprising an injection device capable of producing a flow of combustible gas mixture at high velocity, said injection device including tubing comprising a convergent back section and a divergent front section, an injection nozzle mounted in the convergent back section and connected to a source of pressurized gas, an opening for letting through air located in an annular area defined between said nozzle and said convergent back section, a handle mounted on said tubing, a burner head, in which said flow is injected via a tubular extender connecting said injection device to said head, and an extractable and/or retractable holding device, mounted on the injection device at the convergent back section, said holding device comprising a rod and a bent portion connected to said rod extending in a plane perpendicular to a longitudinal axis of said rod, said holding device being supported on the forearm of the operator by the bent portion when the operator holds the device with the handle with which the injection device is equipped, said rod being connected to said injection device so as to be moveable between an extended position in which the bent portion is spaced from said convergent back section and can be placed on the forearm of the operator and a retracted position in which the bent portion is positioned substantially coaxially and against the injection device, such that the bent portion does not hinder use of the device regardless of whether said rod is in either the retracted or extended position.
Dependencies are inferred from the claim text.