Patent US3628670A successfully refreshed from Google Patents.
US3628670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-tank-cleaning apparatus
Assignee: Individual
•
Filing: 1970-10-12
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Granted: 1971-12-21
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Expires: 1990-10-12
Abstract
Abstract A cleaning apparatus for an oil tank. A rod is rotatably mounted to the floor of the tank and to a frame attached to the tank sidewalls. An arm having a sphere at one end contacting the sidewall of the tank is attached to the rod and receives sediment for filtering. An outlet pipe is connected to the tank via this hole and receives the sediment. A motor drives the rod with suitable gearing.
Inventors
- 👤 Ray O Mcguire
- 👤 Joseph C Peeper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:46
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0012; B01D21/0006; B01D21/02; B01D21/04; B01D21/06; B01D21/18; B01D21/24; B01D21/245; Y; Y10; Y10S; Y10S210/00; Y10S210/09
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
129 words
The combination of: an oil tank having a floor, a sidewall and a movable roof, said floor having a hole therethrough adjacent said wall; a frame fixedly attached to said sidewall and extending over said floor beneath said movable floor; an upstanding rod having a bottom end rotatably mounted to said floor and a top end rotatably mounted to said frame; a plastic arm fixedly connected to said rod being in sliding contact with said floor and having a concave side; an element fixedly mounted to said arm being in slidable contact with said sidewall; drive means operatively connected to said rod and continuously driving said arm at all times; an outlet pipe connected to said tank via said hole; and, a strainer removably connected to said outlet pipe.
Claim 2
Dependent Claim
129 words
The combination of: an oil tank having a floor, a sidewall and a movable roof, said floor having a hole therethrough adjacent said wall; a frame fixedly attached to said sidewall and extending over said floor beneath said movable floor; an upstanding rod having a bottom end rotatably mounted to said floor and a top end rotatably mounted to said frame; a plastic arm fixedly connected to said rod being in sliding contact with said floor and having a concave side; an element fixedly mounted to said arm being in slidable contact with said sidewall; drive means operatively connected to said rod and continuously driving said arm at all times; an outlet pipe connected to said tank via said hole; and, a strainer removably connected to said outlet pipe.
Claim 3
Dependent Claim
36 words
The combination of claim 1 and further comprising: a guy wire connected to said rod and said element across said concave side being in tension; and, a bearing mounted to said frame rotatably receiving said rod.
Claim 4
Dependent Claim
50 words
The combination of claim 2 wherein: said driving means has a motor with a rotating output shaft positioned between said frame and said floor, said means also has a worn gear on said shaft and a second gear fixedly mounted to said rod in meshing engagement with said worm gear.
Claim 5
Dependent Claim
39 words
The combination of claim 3 wherein: said element is a sphere; and, said frame is spider-shaped being positioned parallel, over and adjacent said shaft, said frame supports said movable roof when all of the oil is beneath said frame.
Claim 6
Dependent Claim
18 words
The combination of claim 4 additionally comprising: a bypass pipe connected around said strainer to said outlet pipe.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |