Patent US3820341A successfully refreshed from Google Patents.
US3820341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leaching chamber
Assignee: Individual
•
Filing: 1973-04-26
•
Granted: 1974-06-28
•
Expires: 1993-04-26
Abstract
Abstract An efficient distributing leaching chamber adapted for multiple unit installation comprising slanted side walls joined at their tops to form an inverted V-shaped chamber, said walls being holed at suitable intervals for access to and from said chamber which is enclosed by triangular end walls provided with exterior set backs for stacking units. Access to the chamber is provided through the juncture of the side walls and knock out sections in the end walls.
Inventors
- 👤 R Richard
- 👤 R Brugger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:51
CPC Classifications
E; E03; E03F; E03F1/00; E03F1/002; E03F1/003; E02; E02B; E02B13/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
An effluent distributing leaching chamber unit comprising slanted side walls joined at their tops substantially at right angles to each other, vertical end walls formed integral with said side walls to encompass a triangular space, holes in said side walls permitting fluid flow from the triangular compartment formed by said side and end walls, at least one ''''knock out'''' section in each end wall lower section, an exterior set back section on each end wall above said ''''knock out'''' section, a ''''knock out'''' section in the upper area of each end wall adapted to receive a connector pipe, said unit having a removable cover section in said side walls which permits inspection of said triangular space.
Claim 2
Dependent Claim
116 words
An effluent distributing leaching chamber unit comprising slanted side walls joined at their tops substantially at right angles to each other, vertical end walls formed integral with said side walls to encompass a triangular space, holes in said side walls permitting fluid flow from the triangular compartment formed by said side and end walls, at least one ''''knock out'''' section in each end wall lower section, an exterior set back section on each end wall above said ''''knock out'''' section, a ''''knock out'''' section in the upper area of each end wall adapted to receive a connector pipe, said unit having a removable cover section in said side walls which permits inspection of said triangular space.
Claim 3
Dependent Claim
47 words
A unit according to claim 1 in which the holes in said side walls are formed at an angle to the walls from inside to out, the lower edge defining the opening on the inside being lower than the lower edge defining the opening on the outside.
Claim 4
Dependent Claim
49 words
A unit according to claim 1 in which the interior of each slanted side wall is furnished with at least one imperforate reinforcing rib in a plane parallel with the end walls and of a depth to partially support the unit with the end wall and side wall bottoms.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |