US3079937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank cleaners
Assignee: Diversey Wyandotte Corp
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Filing: 1960-09-22
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Granted: 1963-03-05
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Expires: 1980-09-22
Abstract
No abstract record available.
Inventors
- 👤 Edward B Tooper
- 👤 Jack R Greenfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:45
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/093; B05; B05B; B05B15/00; B05B15/60; B05B15/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A TANK CLEANING ATTACHMENT COMPRISING A SPRAY HEAD, A SUPPORT FOR HOLDING AND POSITIONING THE SPRAY HEAD, SAID SUPPORT BEING ADAPTED TO BE LOCATED AND POSITIONED INTERNALLY OF A TANK THROUGH A MANHOLE OPENING THEREIN, A PLURALITY OF SUPPORT LOCATING AND HOLDING MEMBERS CARRIED FROM THE SUPPORT IN SPACED-APART LOCATIONS THEREON AND EXTENDING IN A DIVERGING MANNER OUTWARDLY RELATIVE TO THE SUPPORT IN A DIRECTION OPPOSITE THAT OF THE SPRAY HEAD SUPPORT SO THAT WHEN THE SPRAY HEAD AND SUPPORT ARE POSITIONED INTERNALLY OF A TANK THROUGH A MANHOLE OPENING THEREIN THE SUPPORT HOLDING AND LOCATING MEMBERS EXTEND THROUGH THE MANHOLE OPENING AND SPREAD PART EXTERNALLY OF THE TANK, AND MEANS TO SEPARATE THE SUPPORT LOCATING AND HOLDING MEMBERS RELATIVE TO EACH OTHER TO POSITIONS TO BEAR UPON THE WALL OF THE MANHOLE OPENING TO PROVIDE GRIPPING SUPPORTS THERETO.
Claim 2
Dependent Claim
139 words
A TANK CLEANING ATTACHMENT COMPRISING A SPRAY HEAD, A SUPPORT FOR HOLDING AND POSITIONING THE SPRAY HEAD, SAID SUPPORT BEING ADAPTED TO BE LOCATED AND POSITIONED INTERNALLY OF A TANK THROUGH A MANHOLE OPENING THEREIN, A PLURALITY OF SUPPORT LOCATING AND HOLDING MEMBERS CARRIED FROM THE SUPPORT IN SPACED-APART LOCATIONS THEREON AND EXTENDING IN A DIVERGING MANNER OUTWARDLY RELATIVE TO THE SUPPORT IN A DIRECTION OPPOSITE THAT OF THE SPRAY HEAD SUPPORT SO THAT WHEN THE SPRAY HEAD AND SUPPORT ARE POSITIONED INTERNALLY OF A TANK THROUGH A MANHOLE OPENING THEREIN THE SUPPORT HOLDING AND LOCATING MEMBERS EXTEND THROUGH THE MANHOLE OPENING AND SPREAD PART EXTERNALLY OF THE TANK, AND MEANS TO SEPARATE THE SUPPORT LOCATING AND HOLDING MEMBERS RELATIVE TO EACH OTHER TO POSITIONS TO BEAR UPON THE WALL OF THE MANHOLE OPENING TO PROVIDE GRIPPING SUPPORTS THERETO.
References Cited (Backward Citations)
US2965308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |