Patent US4173923A successfully refreshed from Google Patents.
US4173923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal and brick chimney liner
Assignee: Pullman Inc
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Filing: 1978-11-06
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Granted: 1979-11-13
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Expires: 1998-11-06
Abstract
Abstract An insulated metal chimney lining, having constant loading spring suspension from the chimney column, is provided at the lower portion of a brick chimney lining to form the breeching entry. To provide additional thermal expansion capacity, an expansion joint may be incorporated in the metal liner.
Inventors
- 👤 Randolph W. Snook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:05
CPC Classifications
E; E04; E04F; E04F17/00; E04F17/02
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
117 words
In a chimney having an outer column with an exterior and inner surface, in inner lining spaced therefrom and having a lower end, and breeching means joined to said lining, the improvement comprising: a breeching member comprising an upright tubular element generally in line with the inner lining, and at least one lateral tubular element, said lateral element extending through the outer chimney column to form a breeching entry; suspension means coacting with the outer chimney column and the upright tubular element for suspending the breeching member within the chimney at the lower end of the lining, and constant loading hanger means for suspending said lateral tubular element from the outer chimney column adjacent the breeching entry.
Claim 2
Dependent Claim
117 words
In a chimney having an outer column with an exterior and inner surface, in inner lining spaced therefrom and having a lower end, and breeching means joined to said lining, the improvement comprising: a breeching member comprising an upright tubular element generally in line with the inner lining, and at least one lateral tubular element, said lateral element extending through the outer chimney column to form a breeching entry; suspension means coacting with the outer chimney column and the upright tubular element for suspending the breeching member within the chimney at the lower end of the lining, and constant loading hanger means for suspending said lateral tubular element from the outer chimney column adjacent the breeching entry.
Claim 3
Dependent Claim
36 words
The chimney of claim 1 having a ring shaped circular beam supported at the inner surface of the column comprising supporting means for the inner lining, and means suspending the breeching member from said circular beam.
Claim 4
Dependent Claim
46 words
The chimney of claim 2 wherein the breeching member is suspended from the circular beam by means comprising lateral shoulder means securely fastened to the upper part of the vertical tubular element and attaching means fastening said shoulder means to the underside of said circular beam.
Claim 5
Dependent Claim
18 words
The chimney of claim 1 wherein said upright tubular element has an expansion section below the suspension means.
Claim 6
Dependent Claim
18 words
The chimney of claim 2 wherein said upright tubular element has an expansion section below the suspension means.
Claim 7
Dependent Claim
18 words
The chimney of claim 3 wherein said upright tubular element has an expansion section below the suspension means.
Claim 8
Dependent Claim
40 words
The chimney of claim 3 wherein said upright tubular element has an expansion section below the suspension means and wherein the upper end of the tubular element is rigidly attached to the inner liner to form a rigid joint therewith.
Claim 9
Dependent Claim
30 words
The chimney of claim 3 wherein said means suspending the breeching member from the circular beam is adapted to permit relative movement between the inner liner and the breeching member.
Claim 10
Dependent Claim
124 words
In a chimney having an outer column with an exterior and inner surface, an inner lining spaced therefrom and having a lower end, and breeching means communicating with said lining, the improvement comprising: an insulated breeching member comprising a tubular element generally in line with the inner lining, at least two lateral tubular elements disposed generally horizontally or at a slight obtuse angle to said vertical tubular element; said breeching member being symetrical or substantially evenly balanced about its vertical axis; said lateral tubular elements extending through the outer chimney column to form breeching entries; and suspension means coacting with the outer chimney column and the tubular elements for suspending the breeching member within the chimney at the lower end of the brick lining.
Claim 11
Dependent Claim
124 words
In a chimney having an outer column with an exterior and inner surface, an inner lining spaced therefrom and having a lower end, and breeching means communicating with said lining, the improvement comprising: an insulated breeching member comprising a tubular element generally in line with the inner lining, at least two lateral tubular elements disposed generally horizontally or at a slight obtuse angle to said vertical tubular element; said breeching member being symetrical or substantially evenly balanced about its vertical axis; said lateral tubular elements extending through the outer chimney column to form breeching entries; and suspension means coacting with the outer chimney column and the tubular elements for suspending the breeching member within the chimney at the lower end of the brick lining.
Claim 12
Dependent Claim
99 words
In a chimney having an outer column with an exterior and inner surface, an inner lining spaced therefrom and having a lower end, and breeching means joined to said lining, the improvement comprising: a breeching member comprising an upright tubular element generally in line with the inner lining, and at least one lateral tubular element, said lateral element extending through the outer chimney column to form a breeching entry; and suspension means coacting with the outer chimney column and the upright tubular element for suspending the breeching member within the chimney at the lower end of the inner lining.
Claim 13
Dependent Claim
99 words
In a chimney having an outer column with an exterior and inner surface, an inner lining spaced therefrom and having a lower end, and breeching means joined to said lining, the improvement comprising: a breeching member comprising an upright tubular element generally in line with the inner lining, and at least one lateral tubular element, said lateral element extending through the outer chimney column to form a breeching entry; and suspension means coacting with the outer chimney column and the upright tubular element for suspending the breeching member within the chimney at the lower end of the inner lining.
Claim 14
Dependent Claim
64 words
A chimney construction comprising an outer column and an inner liner radially inwardly spaced therefrom; the improvement comprising: a support for said chimney disposed in direct supporting relation to at least said column, a base extending into the space between said liner and column; and thermally expandable and contractable means mounting said liner with respect to said base for accommodating expansion and contraction thereof.
Claim 15
Dependent Claim
64 words
A chimney construction comprising an outer column and an inner liner radially inwardly spaced therefrom; the improvement comprising: a support for said chimney disposed in direct supporting relation to at least said column, a base extending into the space between said liner and column; and thermally expandable and contractable means mounting said liner with respect to said base for accommodating expansion and contraction thereof.
Claim 16
Dependent Claim
27 words
The invention according to claim 11 wherein said base member extends to and is supported from said column, and wherein said liner is seated upon said base.
Claim 17
Dependent Claim
25 words
The invention according to claim 12, and a breeching member having a thermal connection with said liner and extending through an opening in said column.
Claim 18
Dependent Claim
41 words
The invention according to claim 11, and a tubular breeching element extending through said column, and said liner having a collar, and said breeching member being hung from said collar for communication with the liner and expanding and contracting relative thereto.
Claim 19
Dependent Claim
17 words
The invention according to claim 14, and resilient means floatingly suspending said breeching member from said chimney.
Claim 20
Dependent Claim
18 words
The invention according to claim 14, and said breeching member having a collar seated upon said liner collar.
Claim 21
Dependent Claim
69 words
In a chimney having an outer column with interior and exterior surfaces and upper and lower end portions, a base within the lower end portion, a liner within said column spaced from said interior surface and seated upon said base, means supporting said base, a tubular breeching member suspended from said base, and connecting means providing for relative thermal expansion and contraction between said base and said breeching member.
Claim 22
Dependent Claim
69 words
In a chimney having an outer column with interior and exterior surfaces and upper and lower end portions, a base within the lower end portion, a liner within said column spaced from said interior surface and seated upon said base, means supporting said base, a tubular breeching member suspended from said base, and connecting means providing for relative thermal expansion and contraction between said base and said breeching member.
Claim 23
Dependent Claim
36 words
The invention according to claim 17, and said breeching member comprising a vertical tubular portion in alignment with the liner and having an upper end portion overlapping said base and thereby providing said thermal connecting means.
Claim 24
Dependent Claim
19 words
The invention according to claim 18, and means providing load hangers supporting said breeching member from said outer column.
Claim 25
Dependent Claim
19 words
The invention according to claim 17 wherein said breeching member has a portion formed as a series of corrugations.
Claim 26
Dependent Claim
36 words
The invention according to claim 19 and said hangers including clevis type connections to accommodate movement of said breeching member and thus reduce eccentric loads on the base due to loading weight of the breeching member.
Claim 27
Dependent Claim
16 words
The invention according to claim 20, and said series of corrugations being generally of bellows shape.
References Cited (Backward Citations)
US2573195A
Cited
US2539177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-12 | 1983-05-14 | 1983-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-12 | 1987-05-14 | 1987-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-12 | 1991-05-14 | 1991-11-13 | $7700.00 | Window Closed / Lapsed |