Patent US3959142A successfully refreshed from Google Patents.
US3959142A
Expired / Lapsed
US
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Manhole aerator
Assignee: Individual
•
Filing: 1973-02-08
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Granted: 1976-05-25
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Expires: 1993-02-08
Abstract
Abstract A manhole aerator including a conventional manhole having a sewer inlet and outlet line with a vented manhole cover wherein the inlet line is provided with upwardly extended pipe elbow section centrally aligned within the manhole with an upwardly open end to permit an overflow discharge of sewage into the manhole. An annular baffle is secured to the open end to deflect the sewage flow to fall and splash against the bottom of the manhole. A gate valve may be provided in a straight pipe extension from the elbow section to permit periodic self cleaning of the elbow section, if necessary.
Inventors
- 👤 Herman K. Dupre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:50
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/24; E; E03; E03F; E03F5/00; E03F5/02; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
87 words
A manhole aerator including a vented manhole having a sewer inlet line and a sewer outlet line and wherein the improvement comprises an upwardly extended pipe section substantially centrally aligned within said manhole and secured to said inlet line and having an upwardly open end for the discharge of the sewage within said manhole, and an annular baffle member secured to said open end and adapted to annularly and outwardly diffuse the sewage flow thereabout and allow it to free fall to the bottom of said manhole.
Claim 2
Dependent Claim
87 words
A manhole aerator including a vented manhole having a sewer inlet line and a sewer outlet line and wherein the improvement comprises an upwardly extended pipe section substantially centrally aligned within said manhole and secured to said inlet line and having an upwardly open end for the discharge of the sewage within said manhole, and an annular baffle member secured to said open end and adapted to annularly and outwardly diffuse the sewage flow thereabout and allow it to free fall to the bottom of said manhole.
Claim 3
Dependent Claim
17 words
The manhole aerator of claim 1 characterized by a downwardly disposed conical-shaped baffle comprising said baffle member.
Claim 4
Dependent Claim
19 words
The manhole aerator of claim 2 characterized by means to support said pipe section in its upwardly extended position.
Claim 5
Dependent Claim
128 words
A manhole aerator including a manhole vented to permit the entrance of air therein and having a sewage inlet and outlet line thereto with the sewage outlet at the bottom of the manhole wherein the improvement comprises an upwardly extended elbow pipe section substantially centrally aligned within said manhole and secured to said inlet line and having an upwardly open end for the discharge of the sewage influent within said manhole, an annular baffle member secured to said open end and adapted to annularly and outwardly diffuse the sewage flow and allow it to free fall to the bottom of said manhole, a straight pipe section secured to said elbow section to be substantially aligned with said sewage inlet line and a gate valve closing said straight section.
Claim 6
Dependent Claim
128 words
A manhole aerator including a manhole vented to permit the entrance of air therein and having a sewage inlet and outlet line thereto with the sewage outlet at the bottom of the manhole wherein the improvement comprises an upwardly extended elbow pipe section substantially centrally aligned within said manhole and secured to said inlet line and having an upwardly open end for the discharge of the sewage influent within said manhole, an annular baffle member secured to said open end and adapted to annularly and outwardly diffuse the sewage flow and allow it to free fall to the bottom of said manhole, a straight pipe section secured to said elbow section to be substantially aligned with said sewage inlet line and a gate valve closing said straight section.
Claim 7
Dependent Claim
21 words
The manhole aerator of claim 4 characterized by means extending through said manhole cover to open and close said gate valve.
Claim 8
Dependent Claim
79 words
A manhole aerator included within a vented manhole having a sewer inlet and a sewer outlet, said aerator characterized by manhole inlet means extending upwardly in and substantially centrally within said manhole and having an upwardly open discharge end to permit the discharge of sewage therein in the form of a fountain and an annular baffle member secured to said discharge end to diffuse the sewage flow and allow it to free fall to the bottom of said manhole.
Claim 9
Dependent Claim
79 words
A manhole aerator included within a vented manhole having a sewer inlet and a sewer outlet, said aerator characterized by manhole inlet means extending upwardly in and substantially centrally within said manhole and having an upwardly open discharge end to permit the discharge of sewage therein in the form of a fountain and an annular baffle member secured to said discharge end to diffuse the sewage flow and allow it to free fall to the bottom of said manhole.
References Cited (Backward Citations)
US727446A
Cited
US3353676A
Cited
US3317197A
Cited
US3731812A
Cited
US3525685A
Cited
US3734850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |