GB2169338A - Covers for storage tanks and cisterns - Google Patents

Covers for storage tanks and cisterns Download PDF

Info

Publication number
GB2169338A
GB2169338A GB08431608A GB8431608A GB2169338A GB 2169338 A GB2169338 A GB 2169338A GB 08431608 A GB08431608 A GB 08431608A GB 8431608 A GB8431608 A GB 8431608A GB 2169338 A GB2169338 A GB 2169338A
Authority
GB
United Kingdom
Prior art keywords
cover
tank
wall
rim
cistern
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08431608A
Other versions
GB2169338B (en
GB8431608D0 (en
Inventor
Robert William Petty
John Stephen Hardaker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanks and Drums Ltd
Original Assignee
Tanks and Drums Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tanks and Drums Ltd filed Critical Tanks and Drums Ltd
Priority to GB08431608A priority Critical patent/GB2169338B/en
Publication of GB8431608D0 publication Critical patent/GB8431608D0/en
Publication of GB2169338A publication Critical patent/GB2169338A/en
Application granted granted Critical
Publication of GB2169338B publication Critical patent/GB2169338B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/00351—Dome-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00527—NO contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00611—Profiles
    • B65D2543/00648—Flange or lip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00675—Periphery concerned
    • B65D2543/00685—Totality
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/00731—Groove or hollow bead
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00805—Segments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

A cover for a storage tank, e.g. a domestic feed or expansion cistern, has a peripheral channel (10) which receives the rim of the tank, the peripheral channel (10) having a radially-outwardly-directed extension (16) for accommodating an outwardly-directed flange (20) formed on the rim of the tank. <IMAGE>

Description

SPECIFICATION Covers for storage tanks and cisterns This invention relates to covers for storage tanks or cisterns, and is especially concerned with providing covers for domestic feed and expansion cisterns.
Domestic tanks and cisterns have long been made from galvernised iron, and more recently they have been made from rigid plastics materials such as polypropylene. Recent legislation requires that all cisterns which are supplied to new installations must comply with drinking water standards, i.e. they must exclude all foreign bodies having a diameter greater than 0.6mm. It has therefore become necessary for domestic tanks and cisterns to be provided with a cover, and it is an object of the present invention to provide such a cover.
According to the invention a cover for a storage tank or cistern has a peripheral channel adapted to receive the rim of the tank or cistern, the peripheral channel having a radially-outwardly-directed extension for accommodating an outwardly-directed flange formed on the said rim.
The cover is suitably made of a plastics material which has sufficient resilience for the cover to be able to "snap" over the rim of the tank or cistern and "lock" the outwardlydirected flange on the rim within the radiallyoutwardly-directed extension of the periphera; channel.
The peripheral channel may extend around the entire periphery of the cover; when the cover is rectangular in plan, however, it is suitable for the channel to extend along the major proportion of each of the four sides.
An embodiment of the invention is illustrated in the accompanying drawings, in which: Figure 1 is a plan of a cover for a storage tank or cistern; and Figure 2 is a section on the line X-X of Fig.
1, with the rim of a cistern shown in dotted outline.
Referring to the drawings, the cover, suitably made of polypropylene or polyethylene, has a central portion 2 which may suitably be of flat, dished or domed shape, surrounded by side walls 4. Side walls 4 terminate at their lower ends in a peripheral groove 6, the other side of which, remote from wall 4, is formed by an upstanding wall 8 forming one side of a downwardly-facing peripheral channel 10. Channel 10 is completed by an upper wall 12 joined to a side wall 14 through a radially-outwardly-directed extension 16.
The cover shown in the drawings is suitable for fitting onto a rectangular cistern or tank of corresponding shape. The upper part of one wall of a tank is shown in dotted outline in Fig. 2. The rim of the tank is provided with an outwardly-directed flange 20, which is accommodated in the extension 16 of the channel 10.
Application and removal of the cover are simple matters. To apply the cover to a tank, the cover is placed on top of the tank, so that the bottom of wall 14 rests on the flange 20. Downward pressure on the wall 12 causes the flange 20 to flex downwardly, or the wall 14 to flex outwardly, or both, so that the wall 14 rides over the flange 20 and the flange 20 then "snaps" back into the radial extension 16. The cover is then securely attached to the tank.
To remove the cover, the wall 14 is flexed outwardly, until the top of the wall is clear of the flange 20, and the cover is lifted off the tank.
1. A cover for a storage tank or cistern, the cover having a peripheral channel adapted to receive the rim of the tank or cistern, the peripheral channel having a radially-outwardlydirected extension for accommodating an outwardly-directed flange formed on the said rim.
2. A cover as claimed in claim 1 substantially as described with reference to the drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (2)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Covers for storage tanks and cisterns This invention relates to covers for storage tanks or cisterns, and is especially concerned with providing covers for domestic feed and expansion cisterns. Domestic tanks and cisterns have long been made from galvernised iron, and more recently they have been made from rigid plastics materials such as polypropylene. Recent legislation requires that all cisterns which are supplied to new installations must comply with drinking water standards, i.e. they must exclude all foreign bodies having a diameter greater than 0.6mm. It has therefore become necessary for domestic tanks and cisterns to be provided with a cover, and it is an object of the present invention to provide such a cover. According to the invention a cover for a storage tank or cistern has a peripheral channel adapted to receive the rim of the tank or cistern, the peripheral channel having a radially-outwardly-directed extension for accommodating an outwardly-directed flange formed on the said rim. The cover is suitably made of a plastics material which has sufficient resilience for the cover to be able to "snap" over the rim of the tank or cistern and "lock" the outwardlydirected flange on the rim within the radiallyoutwardly-directed extension of the periphera; channel. The peripheral channel may extend around the entire periphery of the cover; when the cover is rectangular in plan, however, it is suitable for the channel to extend along the major proportion of each of the four sides. An embodiment of the invention is illustrated in the accompanying drawings, in which: Figure 1 is a plan of a cover for a storage tank or cistern; and Figure 2 is a section on the line X-X of Fig. 1, with the rim of a cistern shown in dotted outline. Referring to the drawings, the cover, suitably made of polypropylene or polyethylene, has a central portion 2 which may suitably be of flat, dished or domed shape, surrounded by side walls 4. Side walls 4 terminate at their lower ends in a peripheral groove 6, the other side of which, remote from wall 4, is formed by an upstanding wall 8 forming one side of a downwardly-facing peripheral channel 10. Channel 10 is completed by an upper wall 12 joined to a side wall 14 through a radially-outwardly-directed extension 16. The cover shown in the drawings is suitable for fitting onto a rectangular cistern or tank of corresponding shape. The upper part of one wall of a tank is shown in dotted outline in Fig. 2. The rim of the tank is provided with an outwardly-directed flange 20, which is accommodated in the extension 16 of the channel 10. Application and removal of the cover are simple matters. To apply the cover to a tank, the cover is placed on top of the tank, so that the bottom of wall 14 rests on the flange 20. Downward pressure on the wall 12 causes the flange 20 to flex downwardly, or the wall 14 to flex outwardly, or both, so that the wall 14 rides over the flange 20 and the flange 20 then "snaps" back into the radial extension 16. The cover is then securely attached to the tank. To remove the cover, the wall 14 is flexed outwardly, until the top of the wall is clear of the flange 20, and the cover is lifted off the tank. CLAIMS
1. A cover for a storage tank or cistern, the cover having a peripheral channel adapted to receive the rim of the tank or cistern, the peripheral channel having a radially-outwardlydirected extension for accommodating an outwardly-directed flange formed on the said rim.
2. A cover as claimed in claim 1 substantially as described with reference to the drawings.
GB08431608A 1984-12-14 1984-12-14 Covers for storage tanks and cisterns Expired GB2169338B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08431608A GB2169338B (en) 1984-12-14 1984-12-14 Covers for storage tanks and cisterns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08431608A GB2169338B (en) 1984-12-14 1984-12-14 Covers for storage tanks and cisterns

Publications (3)

Publication Number Publication Date
GB8431608D0 GB8431608D0 (en) 1985-01-30
GB2169338A true GB2169338A (en) 1986-07-09
GB2169338B GB2169338B (en) 1988-09-01

Family

ID=10571197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08431608A Expired GB2169338B (en) 1984-12-14 1984-12-14 Covers for storage tanks and cisterns

Country Status (1)

Country Link
GB (1) GB2169338B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224301A (en) * 1988-09-20 1990-05-02 Tanks & Drums Ltd A cistern with cover and seal
US5417344A (en) * 1993-12-13 1995-05-23 Wells; William E. Secondary containment apparatus with support and clamp

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1014493A (en) * 1961-07-19 1965-12-31 Svend Eric Albertus Container for perishable food
GB1159199A (en) * 1967-05-11 1969-07-23 Metal Box Co Ltd Improvements in or relating to Metal Containers
US3504823A (en) * 1968-05-06 1970-04-07 Monsanto Co Container
GB1299278A (en) * 1970-03-09 1972-12-13 Sweetheart Plastics Improvements in plastics closures for containers
GB1299425A (en) * 1970-02-17 1972-12-13 Sweetheart Plastics Improvements in disposable thin wall plastic snap-on lids

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1014493A (en) * 1961-07-19 1965-12-31 Svend Eric Albertus Container for perishable food
GB1159199A (en) * 1967-05-11 1969-07-23 Metal Box Co Ltd Improvements in or relating to Metal Containers
US3504823A (en) * 1968-05-06 1970-04-07 Monsanto Co Container
GB1299425A (en) * 1970-02-17 1972-12-13 Sweetheart Plastics Improvements in disposable thin wall plastic snap-on lids
GB1299278A (en) * 1970-03-09 1972-12-13 Sweetheart Plastics Improvements in plastics closures for containers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224301A (en) * 1988-09-20 1990-05-02 Tanks & Drums Ltd A cistern with cover and seal
US5417344A (en) * 1993-12-13 1995-05-23 Wells; William E. Secondary containment apparatus with support and clamp

Also Published As

Publication number Publication date
GB2169338B (en) 1988-09-01
GB8431608D0 (en) 1985-01-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20001214