US3145832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure die for wire drawing
Assignee: Anchor Post Products Inc
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Filing: 1961-05-02
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Granted: 1964-08-25
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Expires: 1981-05-02
Abstract
No abstract record available.
Inventors
- 👤 John S Case
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:56
CPC Classifications
B; B21; B21C; B21C3/00; B21C3/02; B21C3/12; B21C3/14; B21C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A WIRE DRAWING APPARATUS HAVING A HELPER DIE AND A WIRE DRAWING DIE POSITIONED IN AXIAL ALIGNMENT WITH SAID HELPER DIE AND SPACED THEREFROM TO DEFINE A PRESSURE CHAMBER FOR WIRE DRAWING LUBRICANT BETWEEN SAID DIES, A REPLACEABLE RELIEF PORT POSITIONED IN SAID HELPER DIE AND HAVING ITS APERTURE COMMUNICATING BETWEEN SAID PRESSURE CHAMBER AND THE ATMOSPHERE, WITH THE DIAMETER OF SAID APERTURE BEING OF PREDETERMINED SIZE TO CONTROL THE PRESSURE BUILDUP OF SAID WIRE DRAWING LUBRICANT IN SAID PRESSURE CHAMBER.
Claim 2
Dependent Claim
82 words
IN A WIRE DRAWING APPARATUS HAVING A HELPER DIE AND A WIRE DRAWING DIE POSITIONED IN AXIAL ALIGNMENT WITH SAID HELPER DIE AND SPACED THEREFROM TO DEFINE A PRESSURE CHAMBER FOR WIRE DRAWING LUBRICANT BETWEEN SAID DIES, A REPLACEABLE RELIEF PORT POSITIONED IN SAID HELPER DIE AND HAVING ITS APERTURE COMMUNICATING BETWEEN SAID PRESSURE CHAMBER AND THE ATMOSPHERE, WITH THE DIAMETER OF SAID APERTURE BEING OF PREDETERMINED SIZE TO CONTROL THE PRESSURE BUILDUP OF SAID WIRE DRAWING LUBRICANT IN SAID PRESSURE CHAMBER.
References Cited (Backward Citations)
US2088040A
Cited
US2188470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |