Patent US5017044A successfully refreshed from Google Patents.
US5017044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous reinforced resinous storage tanks with strengthened walls
Assignee: Xerxes Corp
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Filing: 1989-04-26
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Granted: 1991-05-21
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Expires: 2009-04-26
Abstract
Abstract A method of making a storage tank system comprises forming a cylindrical-shaped inner tank with integral support ribs and forming a series of interior wall sections which are at least partially separated from the tank's walls between each set of support ribs. Each wall section is preferably bonded to the side walls of adjoining ribs. The walls of the storage tank are strengthened by the support ribs and wall sections.
Inventors
- 👤 Bruce R. Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:10
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/76; B65D90/00; B65D90/02; B65D90/028; Y; Y10; Y10S; Y10S220/00; Y10S220/23; Y10S220/902
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
113 words
A method of building a strengthened ribbed underground storage tank system from a storage tank formed of a fibrous reinforced resinous material, said storage tank having a cylindrical-shaped main body, end caps and a set of substantially evenly spaced support ribs along the length of the main body which extend circumferentially around said main body and are integral therewith, further wherein said storage tank's interior wall is generally contoured with rib recesses, the improvement comprising bonding a series of wall sections circumferentially around the interior wall of the storage tank to substantially cover interior wall areas between the rib recesses, said wall sections being at least partially separated from the interior wall areas.
Claim 2
Independent Claim
113 words
A method of building a strengthened ribbed underground storage tank system from a storage tank formed of a fibrous reinforced resinous material, said storage tank having a cylindrical-shaped main body, end caps and a set of substantially evenly spaced support ribs along the length of the main body which extend circumferentially around said main body and are integral therewith, further wherein said storage tank's interior wall is generally contoured with rib recesses, the improvement comprising bonding a series of wall sections circumferentially around the interior wall of the storage tank to substantially cover interior wall areas between the rib recesses, said wall sections being at least partially separated from the interior wall areas.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein edges of each wall section are attached at the side walls of the rib recesses.
Claim 4
Dependent Claim
31 words
The method of claim 2 wherein each wall section is formed substantially in contact with the interior wall of the storage tank, yet not sealed thereto in a liquid tight fashion.
Claim 5
Dependent Claim
20 words
The method of claim 1 wherein each wall section is from about eight inches to about sixty inches in width.
Claim 6
Dependent Claim
17 words
The method of claim 1 wherein the wall sections are formed of a fibrous reinforced resinous material.
Claim 7
Dependent Claim
48 words
The method of claim 1 further comprising the step of placing a separating material on the interior of the tank walls over which the wall sections are to be formed, thereby providing a means whereby the mid sections of the wall sections remain structurally independent of the tank.
Claim 8
Dependent Claim
26 words
The method of claim 6 wherein the separating material is a foam, matting, net, screen or mesh and a surface nearest the wall section is sealed.
Claim 9
Dependent Claim
15 words
The method of claim 1 wherein the wall sections are formed from solid sheet materials.
Claim 10
Dependent Claim
30 words
The method of claim 1 further comprising the step of forming a smooth continuous wall over the interior of the tank after attaching the wall sections to prevent liquid accumulations.
Claim 11
Dependent Claim
24 words
The method of claim 9 wherein the rib recesses are first substantially filled with an inert material prior to forming the smooth continuous surface.
Claim 12
Dependent Claim
102 words
A strengthened ribbed underground storage tank system, comprising: (a) a fibrous reinforced resinous storage tank having a cylindrical-shaped main body, end caps and a set of substantially evenly spaced support ribs along the length of the main body which extend circumferentially around the main body and are integral therewith, further wherein said storage tank's interior wall is generally contoured with rib recesses; and (b) a series of wall sections extending circumferentially around the interior wall of the storage tank to substantially cover interior wall areas between the rib recesses, said wall sections being at least partially separated from the interior wall areas.
Claim 13
Dependent Claim
102 words
A strengthened ribbed underground storage tank system, comprising: (a) a fibrous reinforced resinous storage tank having a cylindrical-shaped main body, end caps and a set of substantially evenly spaced support ribs along the length of the main body which extend circumferentially around the main body and are integral therewith, further wherein said storage tank's interior wall is generally contoured with rib recesses; and (b) a series of wall sections extending circumferentially around the interior wall of the storage tank to substantially cover interior wall areas between the rib recesses, said wall sections being at least partially separated from the interior wall areas.
Claim 14
Dependent Claim
20 words
The storage tank system of claim 11 wherein the wall sections are made of fibrous reinforcing material and resinous material.
Claim 15
Dependent Claim
35 words
The storage tank system of claim 12 wherein the storage tank's interior wall between rib recesses has a separating material positioned thereon to provide a means whereby the wall sections remain independent of the tank.
Claim 16
Dependent Claim
18 words
The storage tank system of claim 13 wherein the separating material is sealed on at least one side.
Claim 17
Dependent Claim
27 words
The storage tank system of claim 14 wherein the separating material is a foam, matting, net, screen or mesh which has been sealed on its outer surface.
Claim 18
Dependent Claim
21 words
The storage tank system of claim 12 wherein the wall sections are bonded to the side walls of the support ribs.
Claim 19
Dependent Claim
17 words
The storage tank system of claim 11 wherein the wall sections are made from solid sheet materials.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-20 | 1994-11-19 | 1995-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-20 | 1998-11-19 | 1999-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-20 | 2002-11-19 | 2003-05-21 | $7700.00 | Window Closed / Lapsed |