Patent US2777816A successfully refreshed from Google Patents.
← Back to Patent Explorer
US2777816A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic sewage treatment and disposal unit

Assignee: American Ship Building Co
•
Filing: 1951-09-07
•
Granted: 1957-01-15
•
Expires: 1971-09-07
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 George P Schumacker
  • 👤 Egerton B Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 12:49
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F2103/00; C02F2103/008; C02F2201/00; C02F2201/001; C02F2209/00; C02F2209/42

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 176 words
A PREFABRICATED SEWAGE DISPOSAL UNIT FOR SHIPBOARD USE COMPRISING; A UNITARY STRUCTURE CONSTITUTING A PREFORMED BASE; SUBSTANTIALLY CLOSED TANK MOUNTED ON SAID BASE AND HAVING THEREIN A SEWAGE RECEIVING AND STORAGE CHAMBER AND A SEWAGE TREATING CHAMBER; A TRANSFER PUMP; A DELIVERY PUMP; DRIVING MOTORS CONNECTED WITH SAID PUMPS TO DRIVE THE SAME; MEANS ON SAID BASE FORMING FOUNDATIONS FOR SAID TRANSFER AND DELIVERY PUMPS AND THEIR DRIVING MOTORS AND HAVING SAID PUMPS AND MOTORS MOUNTED ATHEREON; CONDUIT MEANS CONNECTAING THE INTAKE OF SAID TRANSFER PUMP WITH SAID RECEIVING CHAMBER; CONDUIT MEAND CONNECTING THE DISCHARGE OF SAID TRANSFER PUMP WITH SAID TREATING CHAMBER; CONDUIT MEANS CONNECTING THE INTAKE OF SAID DELIVERY PUMP WITH SAID TREATING CHAMBER; AND CONDUIT MEANS EXTENDING FROM SAID DELIVERY PUMP AND ADAPTED FOR CONNECTION WITH AN OVERBOARD DISCHARGE MEANS; SAID BASE, TANK, PUMP, DRIVING MOTORS AND CONDUIT MEANS BEING ALL ASSEMBLED IN THEIR CONNECTED AND OPERATIVE RELATION TO CONSTITUTE A PREFABRICATED UNIT ADAPTED TO BE TESTED AND TRANSPORTED AS SUCH PRIOR TO INSTALLATION FOAR ITS INTENDED REGULAR SERVICE OPERATION ON A SHIP.
Claim 2
Dependent Claim 176 words
A PREFABRICATED SEWAGE DISPOSAL UNIT FOR SHIPBOARD USE COMPRISING; A UNITARY STRUCTURE CONSTITUTING A PREFORMED BASE; SUBSTANTIALLY CLOSED TANK MOUNTED ON SAID BASE AND HAVING THEREIN A SEWAGE RECEIVING AND STORAGE CHAMBER AND A SEWAGE TREATING CHAMBER; A TRANSFER PUMP; A DELIVERY PUMP; DRIVING MOTORS CONNECTED WITH SAID PUMPS TO DRIVE THE SAME; MEANS ON SAID BASE FORMING FOUNDATIONS FOR SAID TRANSFER AND DELIVERY PUMPS AND THEIR DRIVING MOTORS AND HAVING SAID PUMPS AND MOTORS MOUNTED ATHEREON; CONDUIT MEANS CONNECTAING THE INTAKE OF SAID TRANSFER PUMP WITH SAID RECEIVING CHAMBER; CONDUIT MEAND CONNECTING THE DISCHARGE OF SAID TRANSFER PUMP WITH SAID TREATING CHAMBER; CONDUIT MEANS CONNECTING THE INTAKE OF SAID DELIVERY PUMP WITH SAID TREATING CHAMBER; AND CONDUIT MEANS EXTENDING FROM SAID DELIVERY PUMP AND ADAPTED FOR CONNECTION WITH AN OVERBOARD DISCHARGE MEANS; SAID BASE, TANK, PUMP, DRIVING MOTORS AND CONDUIT MEANS BEING ALL ASSEMBLED IN THEIR CONNECTED AND OPERATIVE RELATION TO CONSTITUTE A PREFABRICATED UNIT ADAPTED TO BE TESTED AND TRANSPORTED AS SUCH PRIOR TO INSTALLATION FOAR ITS INTENDED REGULAR SERVICE OPERATION ON A SHIP.

References Cited (Backward Citations)

US292046A Cited
US2082847A Cited
US1255170A Cited
US1223427A Cited
US1291628A Cited
US1956463A Cited
US2131711A Cited
US2245767A Cited
US2356786A Cited
US2557438A Cited
US2640807A Cited
US2709680A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-01-15 1960-07-16 1961-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-01-15 1964-07-16 1965-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-01-15 1968-07-16 1969-01-15 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag