EP0134074A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Airtight shelters
Assignee: Airflex Containers Ltd
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Filing: 1984-06-05
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Granted: —
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Expires: 2004-06-05
Abstract
Abstract In an airtight shelter or container havirig an impermeable flexible base sheet (10) sealed to an impermeable flexible cover sheet (11) by an inflatable tubular seal 26 within a slotted tubular frame (12), the frame 12 is formed of lengths (20) of slotted tube secured together by a flexible part annular locking element (26) having a lug or projection (28) engaging in aligned transverse apertures (24, 25) through mated slotted tubes.
Inventors
- 👤 Harold John Clements
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 07:28
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/20; E04H15/22; E04H15/32; E04H15/64; E04H15/642; E04H15/644; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
135 words
An airtight shelter or container having an impermeable flexible base sheet (10) and an impermeable flexible cover sheet (11) sealed together around the periphery of the container in a sealing frame (12) has the sealing frame (12) formed of a plurality of lengths of slotted tube (20) with one end of one length fitting in an adjacent end of a next length with the slots aligned and with an inflatable tubular sealing element (26) sealing the sheets (10, 11) together within the slotted tubular frame and characterised in that, to lock adjacent lengths (20, 21) of slotted tube together, there is provided within the inner tube a flexible part annular locking element (26) having an outwardly extending lug or projection (28) engaging in aligned transverse apertures (24, 25) through the mated slotted tubes (20, 21).
Claim 2
Dependent Claim
135 words
An airtight shelter or container having an impermeable flexible base sheet (10) and an impermeable flexible cover sheet (11) sealed together around the periphery of the container in a sealing frame (12) has the sealing frame (12) formed of a plurality of lengths of slotted tube (20) with one end of one length fitting in an adjacent end of a next length with the slots aligned and with an inflatable tubular sealing element (26) sealing the sheets (10, 11) together within the slotted tubular frame and characterised in that, to lock adjacent lengths (20, 21) of slotted tube together, there is provided within the inner tube a flexible part annular locking element (26) having an outwardly extending lug or projection (28) engaging in aligned transverse apertures (24, 25) through the mated slotted tubes (20, 21).
Claim 3
Dependent Claim
20 words
A shelter or container as claimed in claim 1 wherein the locking elements (26) are made of a plastics material.
Claim 4
Dependent Claim
22 words
A shelter or container as claimed in either of the preceding claims wherein the locking elements (26) are made of resilient material.
Claim 5
Dependent Claim
63 words
A shelter or container as claimed in any of the preceding claims wherein the lengths of slotted tube (20, 21) are formed with, at one end only, a short length of larger diameter slotted tube to receive the end of the next length of slotted tube whereby only one locking element (26) is required for each joint between adjacent lengths of the frame.
Claim 6
Dependent Claim
59 words
A shelter or container as claimed in any of claims 1 to 3 wherein each length of slotted tube is joined, at each end, to an adjacent length by connecting tubing (23) of larger diameter, and wherein said locking elements (26) are arranged to engage and lock each length of slotted tube at each end to the connecting tubing.
References Cited (Backward Citations)
No citation records indexed.
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