Fuel tank carrier

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Background

This invention relates to a fuel tank carrier, and, more particularly, to a fuel tank carrier which is formed from three interconnected molded plastic parts.

Propane is a commonly used fuel for lanterns, campstoves, soldering or brazing torches, etc. Propane fuel is usually contained in large, refillable tanks which hold about 20 pounds of fuel and small, disposable tanks or bottles, which hold 14 or 16 ounces of fuel. The 14 and 16 ounce tanks are called bottles even though they are fabricated from metal.

A conventional 14 ounce propane bottle is relatively long and narrow. The diameter of the bottle is about 3 inches, and the bottle can be easily gripped and carried by one hand.

A conventional 16 ounce propane bottle is wider, having a diameter of about 4 inches. It is difficult or awkward to carry a 16 ounce bottle in one hand.

Plumbers frequently use 16 ounce propane bottles for fueling torches for soldering or brazing joints. Plumbers have a particular need for a device which permits a 16 ounce propane bottle to be carried by one hand. However, such a carrying device could be used by anyone which uses 16 ounce propane bottles.

Although 14 ounce propane bottles can be gripped relatively easily, the long, narrow bottle is relatively unstable. A device which could be used not only to carry the bottle but to provide stability would be advantageous.

Other types of fuels, for example, butane, are also contained in disposable tanks.

Summary o< the,, Invention

The invention provides an inexpensive, lightweight fuel tank carrier which enables the user to carry a fuel tank with one hand and which provides a stable support for the tank. The carrier is formed from three injection molded plastic parts -21 ί ζΖ 3 6 a base, a handle, and a top ring. The bottom of the handle snap fits into the base, and the top ring is pivotally secured to the top of the handle. The fuel tank is supported by the base, and the top ring pivots over the top of the tank to secure the tank to the carrier. The base provides a stable support for the fuel tank when the tank is not being carried.

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The invention will be explained in conjunction with an illustrative embodiment shown in the accompanying drawing, in which —

Fig. 1 is a perspective view of a fuel tank carrier formed in accordance with the invention;

Fig. 2 is a perspective view showing a propane bottle being inserted into the carrier;

Fig. 3 is a side elevational view, partially broken away, of the fuel tank carrier;

Fig. 4 is a fragmentary top plan view of the fuel tank carrier; and

Fig. 5 is a fragmentary top plan view of the base of the fuel tank carrier.

The numeral 10 designates generally a fuel tank carrier which includes a base li, a handle 12, and a top ring 13. The base 11 includes a cylindrical inner wall 14, a cylindrical outer wall 15 which is spaced outwardly from the inner wall, and a top wall 16 which curves upwardly from the outer wall to the inner wall. The inner wall terminates above the bottom edge of the outer wall, and an annular bottom wall 17 extends radially inwardly from the bottom of the inner wall. The bottom wall is provided with a central opening 18.

-2The handle 12 includes a lower end portion 20 which is attached to the base 11 and an upper end portion 21 which is pivotally connected to the top ring 13. A grip portion 22 in the middle of the handle is provided with a knurled surface 23.

Referring to Fig. 3, the bottom end portion 20 of the handle includes a projection 25 which is sized to be inserted between the inner and outer walls 14 and 15 of the base. The bottom of the outer wall is recessed at 26, an opening 27 is provided in the inner and top walls 14 and 16, and an opening 28 is provided in the bottom wall 17. The projection 25 of the handle includes a radially inwardly extending shoulder 29 which is engageable with the bottom edge of the opening 27 and an upwardly extending shoulder 30 which is engageable with the top edge of the opening 27. An upwardly extending tab 31 at the bottom of the projection 25 extends through the opening 28. A recess 32 between the projection 25 and the remainder of the bottom end portion of the handle accommodates the outer wall 15.

The handle is attached to the base by inserting the projection 25 into the space between the inner and outer walls and snapping the shoulders 29 and 30 into the opening 27 in the inner and top walls of the base. The shoulder 29 engages the bottom edge of the opening 27 and prevents counterclockwise rotation of the base relative to the handle, and the shoulder 30 engages the top edge of the opening 27 and prevents clockwise relative rotation. The tab 31 and the bottom of the recess 32 also stablize the handle relative to the base and provide support for the base when the bottle carrier is lifted.

The top ring 13 includes a cylindrical wall 35 and a box portion 36 for pivotally attaching the top ring to the handle. The box portion includes a pair of spaced-apart side walls 37, a top wall 38, and an outer wall 39. The top wall and outer wall are recessed at 40, and the sides of the recess 40 are formed by a pair of side walls 41.

-3The upper end portion 21 of the handle includes a projection 44 which is inserted into the recess 40. The projection 44 is pivotally secured to the top ring by a pivot pin 45 which extends through an opening in the projection and openings in the parallel side walls 37 and 41.

The upper end portion of the handle includes a flat surface 46 which extends in a plane which is parallel to the axis of the central opening 18 of the base. The flat surface 46 abuts the flat outer wall 39 of the top ring and supports the top ring in cantilever fashion in a horizontal position in which the axes of the openings in the top ring and the base are aligned.

Figure 2 illustrates a conventional 16 ounce propane bottle 49 being inserted into the base 11. However, it will be understood that a different sized fuel tank carrier could be used with 14 ounce propane bottles, or with other types of fuel tanks, for example, disposable butane fuel tanks. The top ring 13 is pivoted upwardly to the illustrated loading position to allow the bottle to be inserted. In the loading position the axis of the opening in the top ring extends generally perpendicularly to the axis of the opening in the base. The inside diameter of the inner wall 14 of the base is slightly larger than the diameter of the bottle. A plurality of ribs 49 (Fig. 3) are provided on the inner wall to provide a snug fit for the bottle. In one specific embodiment of a bottle carrier for a 16 ounce propane bottle, the inner wall was slightly conical and had an inside diameter of 3.910 inch at the top and an inside diameter of 3.830 inch at the bottom. The ribs 49 projected radially inwardly from the inner wall about 0.024 inch.

The bottom of the propane bottle is supported by the annular bottom wall 17 of the base. The top ring 13 is then pivoted downwardly over the top of the propane bottle and fits

-42lio233 around the cylindrical side wall of the bottle. in one specific embodiment of a carrier for a 16 ounce propane bottle, the inside diameter of the cylindrical wall 35 of the top ring was 3.880 inch. The height of the handle, i.e., the dimension which extends parallel to the axes of the openings in the base and the top ring, was 6.465 inch. The top ring was thereby positioned to encircle the cylindrical side wall of the propane bottle below the dome-shaped top of the propane bottle. The portion of the top ring opposite the pivot pin includes a U-shaped projection 50 to facilitate pivoting the top ring upwardly.

The propane bottle can be carried with one hand by grasping the grip portion 22 of the handle 12. The propane bottle is held in a stable manner by the inner wall 14 of the base and the top ring 13, and the bottle can be carried with its axis extending horizontally without falling out of the bottle carrier.

The base 11 provides a stable support for the propane bottle when the bottle is not being carried and decreases the possibility that the bottle will be accidentally tipped over.

In one specific embodiment of a 16 ounce bottle carrier, the outside diameter of the bottom of the outer wall 15 was 5.25 inches.

The base and top ring are advantageously injection molded from plastic, for example, polypropylene. The handle is advantageously injection molded from foamed plastic, for example, polypropylene with a blowing agent. The carrier is inexpensive, lightweight, and durable.

While in the foregoing specification a detailed description of a specific embodiment of the invention was set forth for the purpose of illustration, it will be understood that many of the details herein given may be varied considerably by those skilled in the art without departing from the spirit and scope of the invention.