US20020088811A1

US20020088811A1 - Pail structure

Info

Publication number: US20020088811A1
Application number: US09/756,852
Authority: US
Inventors: Tsang-Der Lu
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-10
Filing date: 2001-01-10
Publication date: 2002-07-11

Abstract

An improved pail structure includes a bottom end engaged with a substantially conical side wall and a top end which has a larger diameter than the bottom end, an annular flange extended horizontally outward from the top end, an annular ring extended upward and tilted slightly outward from the flange, a top rim extended outward from the top edge of the top ring, and a first edge rim folded downward from the top rim. A plastic lining is encased within the inner walls of the pail and has a stepwise upper end matched against the flange and ring and top rim of the pail and a second edge rim covering the first edge rim from outside. A circular lid is provided to engage with the pail at the upper section around the flange and has two lugs formed at two opposite sides for engaging two handles. A pail lid and a protection cover are provided to cover the top opening of the pail. The lid and protection cover have perforation lines to facilitate opening of the pail lid and to prevent the pail lid from opening during transportation and carrying for protecting goods held in the pail from pouring out. The plastic lining may prevent the goods from spoiling by rusting of the pail.

Description

BACKGROUND OF THE INVENTION

This invention relates to a pail structure and particularly an improved pail structure that is capable of completely empty liquid contained therein and protecting the pail lid from opening or damaging during transportation and does not have riveting hanging lugs on the wall for enhancing pail body strength and has a plastic lining for preventing the pail from rusting.

A conventional pail container (as shown in FIG. 1) usually has a concave seam extended inward at the top opening. When to empty goods (liquid) contained inside, there is always some residual remain inside and cannot be completely discharged from the pail. It would result in waste of goods and also tends to make the pail become rustic because of the residual liquid remain inside. Furthermore, the pail usually has to solder or rivet hanging lugs at the outer wall to engage with handle. The spot soldering or riveting might cause defect of the pail and result in poor production yield.

SUMMARY OF THE INVENTION

In view of aforesaid disadvantages, it is therefore an object of this invention to provide an improved pail structure that can completely empty the goods contained inside so that there is no waste of goods and the pail will have less probability of getting rustic.

Another object of this invention is to provide an improved pail that has pail lid covered by a protection cover for preventing the pail lid from opening or damaging during transportation.

A further object of this invention is to provide a pail that supports handles without soldering or riveting external lugs on the wall so that the pail may be made with a stronger body and is less likely to result in defect and maintain high production yield.

Still another object of this invention is to add a plastic lining to the pail so that goods contained inside won't be contaminated by rust of the pail such that the goods may be conserved for a longer period of time.

In one aspect, the pail according to this invention has more than one stepwise flange and ring extended upward and outward at the top opening to form a sturdy pail opening for engaging with the pail lid and protection cover. A plastic lining is disposed to match snugly with the inside wall of the pail so that goods contained in the pail may be emptied completely and may also be conserved for a longer time once contained inside.

In another aspect, a circular lid is provided to engage with the top end of the pail. The circular lid has curved tenons formed at the circumference each has an elongated ridge and a triangle member to engage with the flange and ring, and lugs for supporting handles so that there is no need to solder or rivet handle lugs on the outer wall of the pail. The pail thus is less likely to be damaged. Defect production of the pail may be reduced and result in lower production cost.

In still another aspect, a protection cover is provided which has an opening ring and a tongue shaped tab linking to perforation lines to facilitate opening of the pail lid when in use.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention, as well as its many advantages, may be further understood by the following detailed description and drawings, in which: [0010]
FIG. 1 is a schematic view of a conventional pail in use for emptying goods held inside. [0011]
FIG. 2 is an exploded view of this invention. [0012]
FIG. 3 is a perspective view of this invention. [0013]
FIG. 4 is a fragmentary sectional view of this invention. [0014]
FIG. 5 is a top view of a lid and protection cover of this invention. [0015]
FIG. 6 is a sectional view of the lid and protection cover shown in FIG. 5. [0016]
FIG. 7 is a sectional view of this invention. [0017]
FIG. 8 is a perspective view of this invention, showing the protective cover is to be torn off. [0018]
FIG. 9 is a sectional view of the lid and protection cover, with the handle at an uplift and engaged position.[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 2 and 3, the pail [0020] 1 according to this invention includes a bottom end 10 engaged with a substantially conical side wall and a top end 11 which has a larger diameter than the bottom end 10. At the top end 12, there is an annular flange 12 extended horizontally outward, an annular ring 13 extended upward and tilted slightly outward, a top rim 130 extended outward from the top edge of the ring 13 then fold downward to form a first edge rim 131. Inside the pail 1, there is a plastic lining 2 closely encased within the inner walls of the pail 1. The plastic lining 2 also has a stepwise top end closely contacted with the top end 11 and forms a second edge rim 20 outside the first edge rim 131. Then there is a wedge ring 3 fixedly engaged with the top end of the plastic lining and has an annular upper ring 30 and a lower ring 32 to make contact respectively with the inner top circumference of the plastic lining 2 opposite to the ring 30 and flange 12, and a third edge rim 31 to shroud the second edge rim 20 from outside. Hence the pail 1, plastic lining 2 and wedge ring 3 are engaged integrally together to form a tight compartment inside (also shown in FIG. 4) and a sturdy top opening 14 for the pail 1.
Referring to FIGS. 5 and 6, above the top end of the pail [0021] 1, there is a circular lid 4 made from a soft material. The lid 4 has two lugs 40 formed at two opposite sides of the outer rim. The lugs 40 engage respectively with one end of a right handle 41 and a left handle 42. The right handle 41 has an arched middle section 410 and a hook 411 formed in the middle section 410. The left handle 42 also has an arched middle section 420 and an aperture 421 formed in the middle section 420 for engaging with the hook 411. The lid 4 further has a plurality of arched shaped tenons 43 equally spaced around the circumference and extended downward to engage with the bottom side of the flange 12. Each tenon 43 has an elongated ridge 430 located at the upper section, a triangle member 431 located at a lower section which has a slant side and a rectangular wedge block 44 located at the center and upper section for engaging with the bottom side of the flange 12. At the circumference of the lid 4 at transverse diagonal location, there are arch shaped members 45 each has a rectangular upper section and a taper lower section and a protrusive slant member 46 located in the center thereof projecting inward. Along an arched line running cross the arch shaped members 45 and tenons 43, there is a first perforation line 47 integrally formed with a protection cover 5 located thereabove. The protection cover 5 has longitudinal and transverse ribs 50, and an opening ring 53 which has a tongue shaped tab 51 integrally formed with a second perforation line 52 which in turn links the first perforation line 47.
Referring to FIGS. 7 and 8, when this invention is in use, pry the [0022] opening ring 53 to tear the second perforation line 52 then to tear the first perforation line 47 whereby to open the pail cover 15. When not in use, close the pail cover 15, and lift the handles 41 and 42 to engage the hook 411 with the aperture 421, the two handles 41 and 42 may be juxtaposed together (shown in FIG. 9) to facilitate carrying of the pail 1. As there is no soldering or riveting for lugs on the peripheral side of the pail 1 for supporting the handles 41 and 42, the pail 1 may be made with less defect and thus may maintain high production yield. The protection cover 5 will prevent the pail lid 15 from being pried open during transportation or carrying, and thus keeps the goods held in the pail 1 securely without pouring out.

Claims

What is claimed is:

1. An improved pail structure, comprising:

a pail including a bottom end engaged with a substantially conical side wall and a top end which has a larger diameter than the bottom end, an annular flange extended horizontally outward from the top end, an annular ring extended upward and tilted slightly outward from the flange, a top rim extended outward from the top edge of the ring, and a first edge rim folded downward from the top rim;

a plastic lining encased within the inner walls of the pail having a stepwise upper end matched against the flange and the annular ring and the top rim of the pail and a second edge rim covering the first edge rim from outside;

a wedge ring fixedly engaged with the upper end of the plastic lining having an annular upper ring and lower ring contacted respectively with the inner upper circumference of the plastic lining opposite to the ring and flange, and a third edge rim to shroud the second edge rim such that the pail, plastic lining and wedge ring integrally forming a sturdy pail opening;

a circular lid having two lugs formed at two opposite sides thereof, a plurality of arched shaped tenons equally spaced around the circumference thereof and extended downward to engage with the bottom side of the flange, and a plurality of arch shaped members disposed at the circumference of the lid at transverse diagonal locations; the lugs engaging respectively with one end of a right handle and a left handle, the right handle having an arched middle section and a hook formed in the middle section, the left handle having another arched middle section and an aperture formed in the another middle section for engaging with the hook; each tenon having an elongated ridge located at an upper section thereof, a triangle member located at a lower section which has a slant side and a rectangular wedge block located at the center and upper section for engaging with the bottom side of the flange; each arch shaped member having a rectangular upper section and a taper lower section and a protrusive slant member located in the center thereof projecting inward; the arch shaped members and tenons being aligned in a curve and having a first perforation line running cross therethrough; and

a pail lid and a protection cover located above the pail lid having a plurality of longitudinal and transverse ribs, and an opening ring which has a tongue shaped tab integrally formed with a second perforation line which links the first perforation line;

wherein the pail lid is openable by prying the opening ring to tear the second perforation line then to tear the first perforation line, and is capable of closing the pail opening securely with the protection cover engaged thereabove whereby to prevent goods held in the pail from pouring out during transportation and carrying; the right and left handles being capable of swinging above the pail lid to engage with each other through the hook and aperture to facilitate carrying of the pail without riveting additional lugs to the pail for supporting the handles.