Note: Descriptions are shown in the official language in which they were submitted.
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Chimney sealing cap
FIELD OF THE INVENTION
[001] The present invention relates generally to chimneys but more
particularly to caps crowning chimney tops.
BACKGROUND OF THE INVENTION
[002] The top of chimneys are exposed to the elements and as such, get
damaged. This damage can eventually be the cause of fire. To remedy
that situation, it is important to regularly inspect the top of chimneys and
effect the necessary repairs.
[003] In order to minimize damage, better chimney caps have been developed
over the years but they generally require the work of a skilled craftsman
that cuts and folds several pieces of sheet metal in order to create a
tight fitting metal cap assembly. This work is generally done on site and
can be quite expensive. That is why, quite often, that step is bypassed
and an unskilled worker builds a less than satisfactory chimney cap.
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SUMMARY OF THE INVENTION
[004] It is a main advantage of this invention to provide a chimney sealing
top
which is significantly more resistant to damage and at the same time
can protect the exterior surfacing of a chimney so that water does not
infiltrate and cause damage.
[005] In order to do so, the invention has a standard cap and a single-piece
crown. The single-piece crown is directly attached to a chimney casing.
The single-piece crown has a hole through which passes a chimney
pipe. The standard cap is welded to the chimney pot. The chimney pipe
passes through to the chimney pot. The standard cap is slipped over the
chimney pipe and fastened onto the single-piece crown using
mechanical fasteners.
[006] Preferably, the chimney sealing cap has the standard cap further
comprised of a flat part, sides, and a chimney pot extending upwardly
from the flat part.
[007] The single-piece crown is directly attached to a chimney casing by way
of mechanical fasteners passing through holes made into a skirt.
[008] The chimney pot is welded to the flat part.
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[009] In a preferred embodiment, mechanical fasteners are used for securing
the single-piece crown onto the chimney casing., and the standard cap
is slipped over and is fastened onto the single-piece crown by
mechanical fasteners passing through standard cap holes.
5[0010] Preferably, the standard cap has built-in flaps to divert water.
[0011] The one-piece construction is in-shop assembled, welded, and quality
controlled, including watertight tests, something unachievable on-site.
This combination of known manufacturing techniques results in a new
and unexpected chimney sealing cap which has the advantages of
having a final field installation that is very simple, and performed quickly
by unskilled labor. Also the end product is a chimney sealing cap with a
much extended life-cycle. Water and ice infiltration are eliminated which
reduces damages to the chimney and its immediate surroundings.
[0012] The foregoing and other objects, features, and advantages of this
invention will become more readily apparent from the following detailed
description of a preferred embodiment with reference to the
accompanying drawings, wherein the preferred embodiment of the
invention is shown and described, by way of examples. As will be
realized, the invention is capable of other and different embodiments,
and its several details are capable of modifications in various obvious
respects, all without departing from the invention. Accordingly, the
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drawings and description are to be regarded as illustrative in nature, and
not as restrictive.
BRIEF DESCRIPTION OF THE DRAWINGS
5[0013] Fig.1 Exploded view of the invention.
DETAILED DESCRIPTION
[0014] A chimney sealing cap (10) is comprised of a standard cap (12) and a
single-piece crown (14). The single-piece crown (14) is directly attached
to a chimney casing (16) by way of mechanical fasteners (not shown)
passing through holes (17) made into a skirt (19). The standard cap is
further comprised of a flat part (11), sides (15), and a chimney pot (22)
extending upwardly from the flat part (11).
[0015] The single-piece crown (14) has a chimney hole (18) through which
passes a chimney pipe (20). The chimney pipe (20) then goes on
through to the chimney pot (22). The chimney pot (22) is welded to the
flat part (11) at the manufacturing stage and is also water tested for
leakage during that stage in a specialized shop.
[0016] Mechanical fasteners are used for securing the single-piece crown (14)
onto the chimney casing (16). Once the single-piece crown (14) is
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mechanically fastened onto the chimney casing (16), the standard cap
(12) is slipped over and is fastened onto the single-piece crown (14),
again, using mechanical fasteners (not shown) passing through
standard cap holes (13).
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[0017] The hole (18) provides the added feature of a self-centering guide for
the on-site assembly of the chimney pipe (20). The one-piece crown
(14) fits snuggly over the entire chimney casing (16) to prevent any
infiltration. While The standard cap (12) has buiit-in flaps (24) to further
divert water.
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