U.S. patent number 3,875,714 [Application Number 05/347,419] was granted by the patent office on 1975-04-08 for interlockable panels.
This patent grant is currently assigned to Nayler (Petroseals) Limited. Invention is credited to Alan John Murray, Irenie Mary Nayler.
United States Patent |
3,875,714 |
Nayler , et al. |
April 8, 1975 |
Interlockable panels
Abstract
A panel which can be interlocked with similar panels to form a
composite structure. The panel has at opposite ends respectively
complementary parts defining channels, one of which has its open
side directed upwardly whilst the other has its open side directed
downwardly. Both marginal side edges of the panel incorporating
channel forming portions of which the portions on the longitudinal
half of the panel incorporating the end with an upwardly directed
channel are directed downwardly, whilst the other longitudinal half
has portions forming complementary upwardly directed channels.
Inventors: |
Nayler; Irenie Mary
(Shropshire, EN), Murray; Alan John (Shropshire,
EN) |
Assignee: |
Nayler (Petroseals) Limited
(Dudley, Worcestershire, EN)
|
Family
ID: |
10067158 |
Appl.
No.: |
05/347,419 |
Filed: |
April 3, 1973 |
Foreign Application Priority Data
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Apr 6, 1972 [GB] |
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015878/72 |
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Current U.S.
Class: |
52/309.4; 52/538;
D25/157; 52/588.1; 52/591.1 |
Current CPC
Class: |
E04B
1/6104 (20130101); B65D 88/34 (20130101); E04B
9/0478 (20130101) |
Current International
Class: |
E04B
9/04 (20060101); E04B 1/61 (20060101); B65D
88/00 (20060101); B65D 88/34 (20060101); E04c
001/10 () |
Field of
Search: |
;52/309,536,538,588,589 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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539,600 |
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Nov 1931 |
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DD |
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444,282 |
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May 1927 |
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DD |
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249 |
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1852 |
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GB |
|
Primary Examiner: Perham; Alfred C.
Attorney, Agent or Firm: Finnegan, Henderson, Farabow and
Garrett
Claims
We claim:
1. A panel which can be interlocked with similar panels to form a
composite structure the panel being of rectangular form and having
at opposite ends first and second respectively complementary parts
defining first and second channels, the first part having an
upwardly projecting portion of a certain length and width spaced
from said respective end by the width of said first channel and the
second part having a downwardly facing portion of the same width as
said first channel to form one wall portion of said second channel
which has a width and length substantially the same as that of the
upwardly projecting portion of said first part, both marginal side
edges of the panel incorporating channel forming portions along the
entire length of said respective side edges and open to each
respective end of which the portions on the longitudinal half of
the panel incorporating the first end have first downwardly
projecting portions of certain width spaced from second downwardly
projecting portions to define therebetween a first longitudinal
channel, whilst the other longitudinal half has upwardly directed
portions of a width substantially identical to the first
longitudinal channel width and defining with the respective side
edge a second longitudinal channel of a width the same as the width
of said first downwardly projecting portions of said first
longitudinal half of the panel.
2. A panel as claimed in claim 1, in which the complementary parts
at opposite ends of the panel defining channels do not extend
through the full width of the panel and the channel forming
portions on both marginal side edges are co-terminus with the
second part of the panel having a downwardly facing portion.
3. A panel as claimed in claim 1 in the form of an inverted tray
having downwardly directed walls extending both longitudinally at
the inside of said marginal side edges and transversely at the
inside of said complementary parts.
4. A panel as claimed in claim 3 formed of polyurethane foam and
incorporating material to minimise the risk of static electric
charges.
Description
This invention relates to a panel which can be interlocked with
similar panels to form a composite structure, and has for its
object to provide such a panel in a convenient form which will
permit of ready assembly of the structure.
A panel according to the invention is of rectangular form and has
at opposite ends respectively, complementary parts defining
channels one of which has its open side directed upwardly whilst
the other has its open side directed downwardly, both marginal side
edges of the panel incorporating channel forming portions of which
the portions on the longitudinal half of the panel incorporating
the end part defining channels directed upwardly form downwardly
directed channels, whilst the other longitudinal half has portions
forming complementary upwardly directed channels.
In the accompanying drawings
FIGS. 1 and 2 respectively are a plan and side view of an example
of the invention as applied to a panel for forming a floating cover
for a storage tank, whilst
FIGS. 3 and 4 respectively are sections on the lines B--B and A--A
of FIG. 1.
Referring to the drawings, there is provided an elongated
rectangular panel 10 which is conveniently formed of moulded rigid
polyurethane foam having closed cells and which is resistant to
aromatic petroleum products. Projecting from one end of the panel
10 is a part 11 defining an upwardly directed channel 12, whilst at
the other end of the panel 10 is a complementary part 13 defining a
downwardly directed channel 14, the arrangement being such that the
part 11 can be interlocked with the channel 14 at the end of a
similar panel with the part 13 of that panel engaging the channel
12. It will be noticed that the part 11 does not extend throughout
the full width of the panel, whilst the part 13 does not extend
throughout the full width of the panel but has marginal portions of
the panel adjoining it.
The longitudinal half 10a of the panel incorporating the part 11
has similar marginal edge portions 15 defining downwardly directed
channels 16, whilst the other longitudinal half 10b of the panel
has marginal edge portions 17 defining upwardly directed channels
18, the arrangement being such that the parts 15 can interlock with
the channels 18 of a pair of adjacent panels arranged in offset
side-by-side relationship.
In order to build up the cover a panel 10 is first located with its
part 11 near the wall of the tank. A further pair of similar panels
are then placed at opposite sides of the first panel in half
overlapping relationship so that their portions 15 engage in the
channels 18 of the first panel. A fourth panel is then placed
between the second and third panels in alignment with the first
panel so as to interlock the part 11 of the fourth panel with the
channel 14 of the first panel and the parts 15 of the fourth panel
with the channels 18 of the second and third panels. By continuing
in this manner all the panels can be interloocked so as to be
supported in interacting relationship. In the case of a circular
tank, panels will require to be cut to fill the segmental gaps and
any convenient means may be provided to create a seal between the
edges of the panels and the walls of the tank, such means
conveniently being connected as, for example, by bolts.
If desired, the assembled structure may be strengthened by
additional connections being made as, for example, by bolts passing
through the parts 11 and 14.
It will be seen that in the illustrated example the panel 10 is in
the form of an inverted tray having perpendicular downwardly
directed walls 19 extending both longitudinally at the inside of
the marginal portions 15 and transversely at the inside of the
parts 11 and 13. Moreover, if desired the polyurethane foam may
incorporate material to minimise risk of static electric
charges.
Although the invention has been described in its application to the
formation of a floating cover for a fuel storage tank, it is
envisaged that similar panels made of other materials could be used
for other purposes such, for example, as the forming of ceilings or
other structures within a building.
* * * * *