US 5,964,367 A · Lidded barrel

Abstract

This invention relates to a cylindrical, blow-molded lidded barrel (wide-mouthed drum) with a barrel lid and tension-ring closure. Previously known lidded barrels have comparatively little ability to withstand falls and are therefore not well-suited for handling liquids. Owing to the special configuration of the barrel lid and the barrel mouth edges as well as by a special matching of the individual components to one another, the lidded barrel according to the invention can be manipulated in the filled state with the same barrel-gripping tool (parrot's beak), ans is universally employed and in industrial use for modem plastic L-ring bung barrels or normal steel bung barrels. By improving the strength of the lidded barrel when it is dropped, the barrel is also made especially well-suited for handling liquids since it remains liquidtight even when dumped or dropped from great heights.

Claims37

Dependent claims

A blow-molded plastic lidded barrel (10) having a barrel body (20), an inner wall surface, an upper open end defined by an upper barrel edge (28) and a central cylindrical portion (26), a barrel lid (12) having an outer periphery and covering the open end of the barrel in a closed position of the lid, said barrel lid having a central section and an outer lid edge (16) which in cross-section defines a downwardly facing U-shaped part, a U-shaped tension-ring closure member (14), which in said closed position of the lid, engages with an upper leg of said tension-ring closure member over said outer lid edge (16) and engages with the lower leg of said tension-ring closure member under an outer radially extending barrel edge (18) disposed below the open end of the barrel body (20), characterized in that:

a) said barrel lid (12) between said outer lid edge (16) and said central section has an annular circumferential groove engaging groove (32) with a radially extending groove floor (48) having inner and outer radial edges, said groove floor being disposed in said barrel body (20) at a level below said central section of said lid when said lid is in said closed position;
and
b) an inner and outer ring flange (56, 54) extends downwardly from said groove floor at the inner and outer radial edges thereof, respectively, said outer ring flange defining a lower part of the outer periphery of said lid.

A plastic lidded barrel (10) having a barrel body (20) with an upper open end defined by an upper barrel edge (28) and a radially inwardly facing wall surface, a plastic barrel lid (12) covering the open end of the barrel in a closed position of the lid, said lid having a central section and an outer lid edge (16) which in cross-section defines a downwardly facing U-shaped part overlying said upper barrel edge (28) with an outer downwardly facing peripheral edge disposed radially outwardly of said barrel edge (28), a U-shaped tension-ring closure member (14), which in said closed position of the lid engages with an upper leg of said tension-ring closure member over an upwardly facing surface of said outer lid edge (16) and engages with a lower leg of said tension-ring closure member under an outer downwardly facing barrel edge (18) that extends below the upper barrel edge (28), characterized in that:

a) said barrel lid (12), between said outer lid edge (16) and said central section, includes an engaging groove (32) for an upper claw of a parrot beak lifting mechanism, said engaging groove (32) having a groove floor (48), a first side wall (52) connecting said floor (48) to said central section and a second side wall (58) connecting said floor (48) and said outer lid edge (16);
b) an outer ring flange (54) extending downwardly from said floor (48) of said engaging groove (32);
and
c) a radially outwardly facing surface disposed along said second side wall (58) and said outer ring flange (54) and having a portion thereof engaging against said inner wall surface of said open upper end of said barrel body (20).

1 more element

A blow-molded lidded barrel (10) having a barrel body (20) with an upper open end defined by an upper barrel edge (28) having an uppermost surface and an outer downwardly facing peripheral barrel edge surface (18) disposed radially outwardly of said barrel body (20), and a radially inwardly facing inner wall surface, a barrel lid (12) covering the open end of the barrel in a closed position of the lid, said lid having a central section and an outer peripheral lid edge (16) which in cross-section defines a downwardly facing U-shaped part overlying said upper barrel edge (28), a U-shaped tension-ring closure member (14), which in said closed position of the lid engages with an upper leg of said tension-ring closure member over an upwardly facing surface of said outer lid edge (16) and engages with a lower leg of said tension-ring closure member under said outer downwardly facing barrel edge surface (18) that extends below said uppermost surface of the upper barrel edge (28), characterized in that:

a) the lower leg of the tension-spring closure member (14) engages in an indentation (22) in the upper barrel body;
b) said indentation (22) has an upper boundary defined by said barrel edge surface (18) and a conical portion extending downwardly away from said barrel edge surface (18) to provide space sufficient to receive a lower claw of a parrot beak lifting mechanism;
c) the uppermost surface of said upper barrel edge (28) defines an outer support with a lid seal (30) disposed between said upper barrel edge (28) and said U-shaped surface of said outer lid edge (16);
d) said barrel lid (12), between said outer lid edge (16) and said central section, includes an engaging area (32) for an upper claw of said parrot beak lifting mechanism;
and
e) the upper open end of the barrel body (20) further includes an exterior flange (40) extending radially outwardly of said upper barrel edge (28) with a lower surface thereof defining a part of said outer barrel edge surface (18).

3 more elements

A blow-molded lidded barrel (10) having a barrel body (20) with an upper open end defined by an upper barrel edge (28), having an uppermost surface and an outer downwardly facing peripheral barrel edge surface disposed radially outwardly of said barrel body (20), and a radially inwardly facing inner wall surface, a barrel lid (12) covering the open end of the barrel in a closed position of the lid, said lid having a central section and an outer peripheral lid edge (16) which in cross-section defines a downwardly facing U-shaped part overlying said upper barrel edge (28), a U-shaped tension-ring closure member (14), which in said closed position of the lid engages with an upper leg of said tension-ring closure member over an upwardly facing surface of said outer lid edge (16) and engages with a lower leg of said tension-ring closure member under said outer downwardly facing barrel edge surface (18) that extends below said uppermost surface of the upper barrel edge (28), characterized in that:

a) the lower leg of the tension-spring closure member (14) engages in an indentation (22) in the upper barrel body;
b) said indentation (22) has an upper boundary defined by said barrel edge (18) and a conical portion extending downwardly away from said barrel edge (18) to provide space sufficient to receive a lower claw of a parrot beak lifting mechanism;
c) the upper barrel edge (28) defines an outer support with a lid seal (30) disposed between said upper barrel edge (28) and said U-shaped surface of said outer lid edge (16);
d) said barrel lid (12), between said outer lid edge (16) and said central section, includes an engaging groove (32) for an upper claw of said parrot beak lifting mechanism, said engaging groove (32) having a groove floor (48) that is disposed in said barrel body (20) at a level spaced below said central section of said lid when in said closed position, said floor (48) having an inner radial edge and an outer radial edge, and said engaging groove (32) having a first side wall (52) with lower and upper ends connected at its lower end to said inner radial edge of said floor (48) and at its upper end to said central section at an angle less than 180.degree. and a second side wall (58) connecting said outer radial edge of said floor (48) and said outer lid edge (16);
e) a first inner ring flange (56) extending downwardly from said floor (48) of said groove (32) at said inner radial edge;
f) a second outer ring flange (54) extending downwardly from said floor (48) of said groove (32) at said outer radial edge to define, with said first inner ring flange (56) and said floor (48), a U-shaped configuration;
and
g) said lid edge (16) further including a radially outwardly facing surface disposed along said second side wall (58) and said second outer ring flange (54) and having a portion thereof engaging against said inner wall surface of said open upper end of said barrel body (20).

5 more elements

Dependencies are inferred from the claim text.

Lidded barrel

Life of this patent

Lidded barrel

Life of this patent

Abstract

Claims37