Fluent material handling – with receiver or receiver coacting mea – With signal – indicator – recorder – inspection means or exhibitor – Level or pressure in receiver
Patent
1993-11-16
1995-12-05
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
With signal, indicator, recorder, inspection means or exhibitor
Level or pressure in receiver
141 39, 141113, 141231, 141351, 220581, 12820418, B65B 130, B65B 3100
Patent
active
054720249
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention concerns gas utilizing apparatuses, for example industrial and, more particularly, a gas feeding assembly, from a source of high pressure gas, of a portable utilizing apparatus which utilizes said gas.
BACKGROUND OF THE INVENTION
Apparatus which utilizes industrial gas, in particular for welding and medical applications, are supplied by means of gas bottles, which are often heavy, in which the autonomy generally exceeds the needs of the pinpoint application of the apparatus. For the utilization of the latter, it is often necessary to carry the bottle, and its cumbersomeness and its weight weigh heavily on handiness and security of use. The use of small bottles, of smaller capacity, cause problems of restocking to the user, and to the suppliers, that of the multiplicity of the sizes of the bottles to be conditioned and delivered.
SUMMARY OF THE INVENTION
It is an object of the present invention to propose a gas feeding assembly which eliminates these problems, and largely facilitates the use of apparatuses and the supply of feeding gas, without notable excessive investment costs, enabling a better management of gas consumption and offering an increased security.
For this purpose, according to a characteristic of the invention, the assembly comprises a mean pressure intermediate gas holder connected to the utilizing apparatus and selectively, rapidly and simply connectable to the source of gas and which feeds the utilizing apparatus, via a first gas control flow tap, the intermediate holder being disposed in a first casing with dismantable means for fixing the first casing to the utilizing apparatus.
According to other characteristics of the invention, the intermediate holder is associated, in the first casing, to a member for fast connection to an outlet head of a loading station, the head being permanently connected to the source of high pressure gas via a first pressure reducer and advantageously comprising a second casing having a shaped housing to receive part of the first casing and in which the outlet head is disposed.
BRIEF DESCRIPTION OF THE INVENTION
Other characteristics and advantages of the present invention will appear from the description which follows of embodiments, given by way of illustration but without limitation, with reference to the annexed drawings, in which:
FIG. 1 is a schematic view, partially in cross-section, of a assembly for feeding gas to a portable utilizing apparatus according to the invention;
FIG. 2 is a partial view, in schematic cross-section, of the embodiment of the connecting means between the first and second casings of the assembly of FIG. 1;
FIG. 3 is a longitudinal cross-section view of an industrial embodiment of the gas reserve casing according to the invention;
FIG. 4 is a longitudinal cross-section view of an industrial embodiment of a loading casing according to the invention adapted to the gas reserve casing of FIG. 3; and
FIG. 5 is a perspective view of the gas reserve casing of FIG. 3.
DETAILED DESCRIPTION OF THE INVENTION
In the description which follows and in the drawings, the same or analogous elements have the same reference numerals, possibly indexed.
The assembly for feeding industrial gas illustrated in FIG. 1, which is particularly suitable for a portable welding apparatus, TIG, MIG-MAG or OXYFLAMME, essentially comprises a source of high pressure gas 1, for example argon or a mixture including argon, at a pressure typically of 200 or 300.times.105 Pa, a loading casing 2, and a gas reserve casing 3 associated with the portable utilizing apparatus 4. The source of high pressure gas 1, advantageously of large capacity and situated in an isolated location, replenished at regular intervals, is connected, in the illustrated example, via a first pressure reducer 5 and a flexible duct 6, to a feeding circuit 7 which is integrated in the loading casing 2, the flexible duct 6 being advantageously unitary with casing 2.
The reserve gas casing 3 includes a gas holder 8, consisting for example of a bo
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patent: 4573665 (1986-03-01), Strohl et al.
patent: 4722333 (1988-02-01), Bartos
patent: 4794923 (1989-01-01), Bartos
Brugerolle Jean-Renaud
Robin Alain
Douglas Steven O.
L'Air Liquide, Societe Anonyme Pour l'etude et l'exploitation de
Recla Henry J.
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