Patent US3137151A successfully refreshed from Google Patents.
US3137151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuous treatment of moving strands
Assignee: Wyeth Holdings LLC
•
Filing: 1960-09-22
•
Granted: 1964-06-16
•
Expires: 1980-09-22
Abstract
No abstract record available.
Inventors
- 👤 Yoshiike Ryuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:48
CPC Classifications
D; D06; D06C; D06C29/00; D01; D01D; D01D10/00; D01D10/02; D01D10/04; D01D10/0436; D01D10/0445; D06B; D06B3/00; D06B3/10; D06B3/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A PRESSURE-SEALING DEVICE FOR CONTINUOUSLY PASSING MOVING STRANDS OF ELONGATED MATERIAL THERETHROUGH BETWEEN ZONES MAINTAINED AT DIFFERENT PRESSURES COMPRISING: A HOLLOW CASING HAVING AN INLET OPENING AT ONE END THEREOF AND AN OUTLET OPENING AT ANOTHER END THEREOF, EACH OF SAID OPENINGS COMMUNICATING WITH ONE OF SAID ZONES; A PLURALITY OF GATE MEANS WITHIN SAID HOLLOW CASING SUBDIVIDING SAID HOLLOW CASING INTO A PLURALITY OF CHAMBERS SEQUENTIALLY ARRANGED BETWEEN SAID INLET OPENING AND SAID OUTLET OPENING; AND MEANS FOR SUPPLYING FLUID TO EACH OF SAID CHAMBERS AT A PRESSURE INTERMEDIATE THE PRESSURES ADJACENT TO SAID CHAMBER.
References Cited (Backward Citations)
US890252A
Cited
US1371914A
Cited
US1612698A
Cited
US2220522A
Cited
US2367174A
Cited
CH239522A
Cited
US2598000A
Cited
US2873597A
Cited
US2989026A
Cited
US2974512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |