FR2788584A1 - Gas bottle, comprises a hollow handle assembly accommodating a calibrated pressure governor weight - Google Patents

Abstract

The gas bottle handle (3) is hollow and defines with the bottle body (2) a housing for a tare weight (7). The handle is held on the body by screwing a nut (4) on a bolt (1) and the weight comprises a ring (8) which is threaded on the bolt.

Description

The present invention relates to

containers and especially to

gas cylinders.

  Cylinders intended for the storage, transport and use of liquefied petroleum gases (butane and propane) are, in the vast majority

of cases, constructed of steel.

  The different tolerances inherent in the manufacture of metallurgical products (thickness of the base plates, size of the products) result in the bottles, even in the same series, having a dispersion of

  weight, which may be greater than several hundred grams.

  Butane and propane gases being sold by weight, the filling of the bottles is accompanied by a weighing of the quantity of gas introduced into the bottle. The accuracy of this weighing is very important, because it meets both a commercial requirement to guarantee the quantity sold, but it is also very important in terms of safety, since an overfilled bottle can present dangers during use. . This requirement of precision is made difficult to achieve because of the weight dispersion of the bottles

  empty in their current conception.

  The invention relates to a container, in particular a gas cylinder, the unladen weight is substantially uniform, regardless of the dispersion of the

weight due to manufacturing.

  The container according to the invention comprises a body, in particular metallic, to which a handle is removably attached. The handle is hollow and, when fixed on the body, it defines with the body a

  housing for receiving a flyweight.

  We can therefore correct the manufacturing tolerances of the container by putting a weight in the housing. Preferably, the handle delimits

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  with the body several separate housings each receiving a counterweight, so that one or more counterweights can be put according to what the taring requires. As the counterweight is concealed by the handle and, moreover, held in place by fixing it on the body, it is not easy to defraud and modify the tare of the container. According to a preferred embodiment because it keeps the counterweight in place in the housing and thus a fraudster does not know that a counterweight is provided and that he could remove it, the handle is kept on the body by screwing a nut onto a threaded stud on the body and where the counterweight has a ring which is threaded onto the stud. The ring, and therefore the counterweight, cannot thus move laterally. For the same reason, it is better that the lower face of the counterweight is concave and follows the shape of the upper face of the container with which it is in contact, when the handle is fixed to the body. Preferably, the thickness of the counterweight, and in particular of the ring, is such that it is clamped between the

  body and handle and also cannot have upward travel.

  To better fix the weight and be able to give it more weight, it has a substantially vertical baluster which extends in a

handle chimney.

  In the accompanying drawing, given solely by way of example, FIG. 1 is a sectional view of a portion of a propane cylinder in line with the handle and its attachment, and

Figure 2 is a plan view.

  In the figures, we see a fixing stud 1 welded to a metal body 2. This stud 1 makes it possible to fix a handle 3 of plastic material using a nut 4 and a washer 5. Inside the cavity 6, fitted according to the invention in the handle 3, is housed a counterweight 7 which corrects the weight of the bottle. The counterweight has a ring 8 which is threaded on the stud 1 and a small column 9. The bottom of the ring and the small column have a concave shape adapted to the shape of the upper part

from bottle 2.

  The handle 3 is fixed to the body 2 by two studs 1 and two handles are provided respectively, so that one can set the choice of zero

to four taring weights.

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  To put a weight, we unscrew the nut 4, we remove the washer 5 and the handle 3. We put the ring 8 of a weight on the stud 1, we put the handle 3 again on the stud 1 and the washer 5 and we

screw the nut back 4.

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Claims (6)

  1. Container, in particular gas cylinder, comprising a body (2), in particular metal, to which a handle (3) is removably attached, characterized in that the handle (3) is hollow and, when it is fixed on the body (2), defines with the body (2) a housing for receiving a counterweight (8).   2. Container according to claim 1, characterized in that the handle (3) defines with the body (2) several separate housings of each receiving a flyweight.   3. Container according to claim 1 or 2, characterized in that the handle (3) is held on the body (2) by screwing a nut (4) on a stud (1) threaded from the body (2) and the counterweight (8) has a ring which is threaded on the stud (1).   4. Container according to one of claims 1 to 3, characterized in that   that the underside of the counterweight (8) is concave and follows the shape of the top face of the container with which it is in contact, when the   handle (3) is fixed on the body (2).   5. Container according to one of claims 1 to 4, characterized in that   that the thickness of the counterweight (8), and in particular of the ring, is such   that it is clamped between the body (2) and the handle (3).   6. Container according to one of claims 1 to 5, characterized in that   that the counterweight (8) comprises a substantially vertical baluster (9) which   extends into a handle chimney.