Patent US2821491A successfully refreshed from Google Patents.
US2821491A
Expired / Lapsed
US
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Coating removal method
Assignee: Borg Warner Corp
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Filing: 1955-07-29
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Granted: 1958-01-28
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Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Charles A Fleming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:51
CPC Classifications
C; C23; C23D; C23D17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE METHOD OF REMOVING A BEAD FROM A COATED OBJECT WHERE THE BEAD IS FORMED OF THE COATING APPLIED TO THE OBJECT AND COMPRISING PASSING THE OBJECT OVER AND BRINGING THE BEAD INTO CONTACT WITH A ROTATING ROLLER WHICH IS PARTIALLY IMMERSED IN A LIQUID CAPABLE OF WETTING THE SURFACE OF THE ROLLER AND DISSOLVING THE COATING AND ROTATING THE ROLLER AT A PERIPHERAL SPEED DIFFERENT FROM THE LINEAR SPEED OF THE OBJECT SUCH THAT THERE IS RELATIVE MOVEMENT BETWEEN THE SURFACE OF THE ROLLER AND THE OBJECT CAUSING A RESULTANT FRICTION THEREBETWEEN FOR STRIPPING THE BEAD FROM THE OBJECT AND THE LIQUID THEREAFTER BEING EFFECTIVE TO DISSOLVE THE BEAD.
Claim 2
Independent Claim
110 words
THE METHOD OF REMOVING A BEAD FROM A COATED OBJECT WHERE THE BEAD IS FORMED OF THE COATING APPLIED TO THE OBJECT AND COMPRISING PASSING THE OBJECT OVER AND BRINGING THE BEAD INTO CONTACT WITH A ROTATING ROLLER WHICH IS PARTIALLY IMMERSED IN A LIQUID CAPABLE OF WETTING THE SURFACE OF THE ROLLER AND DISSOLVING THE COATING AND ROTATING THE ROLLER AT A PERIPHERAL SPEED DIFFERENT FROM THE LINEAR SPEED OF THE OBJECT SUCH THAT THERE IS RELATIVE MOVEMENT BETWEEN THE SURFACE OF THE ROLLER AND THE OBJECT CAUSING A RESULTANT FRICTION THEREBETWEEN FOR STRIPPING THE BEAD FROM THE OBJECT AND THE LIQUID THEREAFTER BEING EFFECTIVE TO DISSOLVE THE BEAD.
References Cited (Backward Citations)
US2234153A
Cited
US2295575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |