CA2204658A1 - Stackable riser for on-site waste and drainage systems - Google Patents
Stackable riser for on-site waste and drainage systemsInfo
- Publication number
- CA2204658A1 CA2204658A1 CA 2204658 CA2204658A CA2204658A1 CA 2204658 A1 CA2204658 A1 CA 2204658A1 CA 2204658 CA2204658 CA 2204658 CA 2204658 A CA2204658 A CA 2204658A CA 2204658 A1 CA2204658 A1 CA 2204658A1
- Authority
- CA
- Canada
- Prior art keywords
- free edge
- stackable
- stackable riser
- underground
- defines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
A plastic stackable riser for providing a grade level access for underground components such as septic tanks, distribution boxes, and drop boxes, including a cylindrical side wall having a top free edge and a bottom edge. The top free edge defines a first end opening and the second bottom edge is connected to a generally inverted U-shaped connecting member which defines a channel shaped to receive the first free edge portion of an adjacent stackable riser. In use, a plurality of stackable risers are interlocked together so that the side walls all extend along common vertical axes to the underground component and provide a gas-tight, liquid-tight column above the underground component.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/769,950 US5852901A (en) | 1994-12-29 | 1996-12-19 | Stackable riser for on-site waste and drainage systems |
US08/769,950 | 1996-12-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2204658A1 true CA2204658A1 (en) | 1998-06-19 |
CA2204658C CA2204658C (en) | 2002-06-25 |
Family
ID=25087014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2204658 Expired - Lifetime CA2204658C (en) | 1996-12-19 | 1997-05-06 | Stackable riser for on-site waste and drainage systems |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2204658C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2523305A (en) * | 2014-01-29 | 2015-08-26 | Fibergrate Composite Structures Ltd | Installation |
GB2622220A (en) * | 2022-09-06 | 2024-03-13 | Polypipe Ltd | Inspection chamber system |
-
1997
- 1997-05-06 CA CA 2204658 patent/CA2204658C/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2523305A (en) * | 2014-01-29 | 2015-08-26 | Fibergrate Composite Structures Ltd | Installation |
GB2523305B (en) * | 2014-01-29 | 2018-12-05 | Fibergrate Composite Structures Ltd | Subterranean Access Installation |
GB2622220A (en) * | 2022-09-06 | 2024-03-13 | Polypipe Ltd | Inspection chamber system |
Also Published As
Publication number | Publication date |
---|---|
CA2204658C (en) | 2002-06-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20170510 |