US2906640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying a wax composition to the convex countersink portion of a can end
Assignee: Primerica Inc
•
Filing: 1956-05-01
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Granted: 1959-09-29
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Expires: 1976-05-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:54
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A METHOD OF APPLYING A WAX COMPOSITION TO THE CONVEX COUNTERSINK PORTION OF AN CAN END COMPRISING HEATING A MIXTURE CONTAINING A HYDROCARBON WAX AND A 6 TO 8 CARBON ATOM ALKANE TO A TEMPERATURE OF ABOUT 130*F. TO 170*F. AND ABOVE THE BOILING POINT OF THE ALKANE TO FORM A HOMOGENEOUS LIQUID COMPOSITION HAVING A BROOKFIELD VISCOSITY OF LESS THAN 50 CENTIPOSES, EJECTING A NON-ATOMIZEKD STREAM OF SAID LIQUID COMPOSITION TOWARD SAID CAN END BY MEANS OF SUPERATMOSPHERIC PRESSURE OF 1 TO 10 P.S.I.G. WHEREBY A PORTION OF SAID ALKANE EVAPORATES FROM SAID STREAM, IMPINGING SAID STREAM ONTO SAID COUNTERSINK PORTION, SIMULTANEOUSLY WITH SAID EVAPORATION COOLING SAID STREAM TO A TEMPERATURE AT LEAST 10*F. BELOW TH AFORESAID HEATING TEMPERATURE TO SOLIDIFY SAID HYDROCARBON WAX AND ENCLOSE THE UNEVAPORATED ALKANE REMAINING IN SAID STREAM WITHIN SAID SOLIDIFIED WAX WHEREBY SAID STREAM UPON CONTACTING SAID ARTICLE HAS A PASTE LIKE CONSISTENCY WITH A VISCOSITY OF AT LEAST 1,000 CENTIPOISES, AND SPREADING AND LEVELING SAID IMPINGLED STREAM OVER SAID AREA BY AT LEAST THE FORCE OF SAID IMPINGEMENT.
Claim 2
Independent Claim
176 words
A METHOD OF APPLYING A WAX COMPOSITION TO THE CONVEX COUNTERSINK PORTION OF AN CAN END COMPRISING HEATING A MIXTURE CONTAINING A HYDROCARBON WAX AND A 6 TO 8 CARBON ATOM ALKANE TO A TEMPERATURE OF ABOUT 130*F. TO 170*F. AND ABOVE THE BOILING POINT OF THE ALKANE TO FORM A HOMOGENEOUS LIQUID COMPOSITION HAVING A BROOKFIELD VISCOSITY OF LESS THAN 50 CENTIPOSES, EJECTING A NON-ATOMIZEKD STREAM OF SAID LIQUID COMPOSITION TOWARD SAID CAN END BY MEANS OF SUPERATMOSPHERIC PRESSURE OF 1 TO 10 P.S.I.G. WHEREBY A PORTION OF SAID ALKANE EVAPORATES FROM SAID STREAM, IMPINGING SAID STREAM ONTO SAID COUNTERSINK PORTION, SIMULTANEOUSLY WITH SAID EVAPORATION COOLING SAID STREAM TO A TEMPERATURE AT LEAST 10*F. BELOW TH AFORESAID HEATING TEMPERATURE TO SOLIDIFY SAID HYDROCARBON WAX AND ENCLOSE THE UNEVAPORATED ALKANE REMAINING IN SAID STREAM WITHIN SAID SOLIDIFIED WAX WHEREBY SAID STREAM UPON CONTACTING SAID ARTICLE HAS A PASTE LIKE CONSISTENCY WITH A VISCOSITY OF AT LEAST 1,000 CENTIPOISES, AND SPREADING AND LEVELING SAID IMPINGLED STREAM OVER SAID AREA BY AT LEAST THE FORCE OF SAID IMPINGEMENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |