US3645100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leaching chamber unit for soil absorption system
Assignee: OLDCASTLE PRECAST EAST Inc
•
Filing: 1970-01-16
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Granted: 1972-02-29
•
Expires: 1990-01-16
Abstract
Abstract An effluent distributing leaching chamber unit adapted for arrangement with others in trench and field configurations to provide large area subsurface soil absorption systems. Each leaching chamber unit is a downwardly open rectangular precast concrete structure adapted to rest squarely on a prepared absorption bed and thereby enclose within its top, side, and end walls a volume of open space. Within the top wall there is formed an end to end extending flow conduit with complimentary shaped terminals in the end walls to permit flush serial end to end connection of units. The ceiling of the top wall is slotted at given intervals through to the flow conduit thereby to distribute and meter flow into each compartment. The side and end walls of a unit are also provided with rows of perforations above absorption bed level to allow air movement and, after row levels have been reached, fluid to pass out of and from one compartment to another.
Inventors
- 👤 Frank La Monica
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:08
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/04; C02F3/046; E; E02; E02B; E02B13/00; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
177 words
A single pour precast open bottomed unit adapted for placement with others on a prepared absorption bed to form a series of substantially rectangular compartments retaining fluid up to predetermined levels comprising, a top wall, side and end walls having at least one level of openings therein between the top and the bottom of said side and end walls, said openings permitting lateral fluid flow from within the compartment formed by the top, side and end walls when the fluid level therein exceeds the level of said openings, a fluid conduit within said top wall extending from end to end of said top wall and through said end walls, and slots transverse to said fluid conduit extending from the undersurface of said top wall through to and opening into said fluid conduit to allow fluid flowing within said fluid conduit to drain into said compartment, said top wall having a removable compartment inspection cover section through which said fluid conduit extends, said removable section on removal permitting inspection of and entry into said fluid conduit and compartment.
Claim 2
Dependent Claim
177 words
A single pour precast open bottomed unit adapted for placement with others on a prepared absorption bed to form a series of substantially rectangular compartments retaining fluid up to predetermined levels comprising, a top wall, side and end walls having at least one level of openings therein between the top and the bottom of said side and end walls, said openings permitting lateral fluid flow from within the compartment formed by the top, side and end walls when the fluid level therein exceeds the level of said openings, a fluid conduit within said top wall extending from end to end of said top wall and through said end walls, and slots transverse to said fluid conduit extending from the undersurface of said top wall through to and opening into said fluid conduit to allow fluid flowing within said fluid conduit to drain into said compartment, said top wall having a removable compartment inspection cover section through which said fluid conduit extends, said removable section on removal permitting inspection of and entry into said fluid conduit and compartment.
Claim 3
Dependent Claim
20 words
A unit as recited in claim 1, said removable cover section of said top wall containing one of said slots.
Claim 4
Dependent Claim
43 words
A unit as recited in claim 1 wherein said fluid conduit is cylindrical and said slots have widths and the openings thereof into said fluid conduit subtend predetermined arcs such that said slots offer controlled resistance to and meter flow into said compartment.
Claim 5
Dependent Claim
50 words
A unit as recited in claim 1 wherein one end of said fluid conduit has an outwardly extending bell shape and the other end has a complimentary shaped recess to enable a series of units to be placed in cooperative end to end abutting relationship with end wall openings aligned.
Claim 6
Dependent Claim
33 words
A unit as recited in claim 1 wherein said top wall overhangs the sidewalls whereby when the top wall edges of side by side units are abutting space is provided between adjacent sidewalls.
Claim 7
Dependent Claim
44 words
A unit as recited in claim 1, said openings in said sidewalls being formed at an angle extending upwardly from outside to inside, said lower edge defining the opening on the inside being higher than the upper edge defining the opening on the outside.
Claim 8
Dependent Claim
12 words
A unit as recited in claim 6 wherein said openings are rectangular.
Claim 9
Dependent Claim
65 words
A unit as recited in claim 1, said conduit being cylindrical, said removable section being provided with slots transverse to said fluid conduit therein, said slots extending from the undersurface of said top wall toward and short of said fluid conduit thereby to provide annular knockouts between fluid conduit and compartment which may be broken away to provide communicating openings between fluid conduit and compartment.
Claim 10
Dependent Claim
39 words
A unit as recited in claim 1, said undersurface of said top wall having a depending central rib section extending from end to end to substantiaLly accommodate said fluid conduit and said transverse slots being in said rib section.
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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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |