Patent US3142090A successfully refreshed from Google Patents.
US3142090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruders
Assignee: Black Clawson Co
•
Filing: 1961-07-26
•
Granted: 1964-07-28
•
Expires: 1981-07-26
Abstract
No abstract record available.
Inventors
- 👤 Robert E Hoffman
- 👤 Lloyd B Sponaugle
- 👤 Arthur D Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:27
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/31; B29C48/313; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A FLAT FILM EXTRUSION DIE COMPRISING A ONE PIECE BODY HAVING MEANS DEFINING A PLASTIC INLET PASSAGEWAY AND A LONGITUDINALLY EXTENDING RECESS COMMUNICATING WITH SAID PASSAGEWAY, A FIXED DIE MEMBER, A WEDGE BAR BETWEEN SAID FIXED DIE MEMEBER AND SAID DIE BODY SECURING SAID FIXED DIE MEMBER IN SEALING RELATION IN SAID RECESS, MEANS IN SAID FIXED DIE MEMBER DEFINING A MANIFOLD CAVITY FORMED IN ONE SIDE THEREOF POSITIONED ADJACENT A COOPERATING SURFACE PORTION OF SAID BODY TO FORM A PLASTIC MANIFOLD DEFINED WHOLLY BETWEEN SAID FIXED DIE MEMBER AND SAID BODY, SAID FIXED DIE MEMBER EXTENDING FROM SAID MANIFOLD AND TERMINATING AT A LIP EXTERNALLY OF SAID BODY AND DEFINING WITH SAID BODY AN ELONGATED EXTRUSION PASSAGEWAY LEADING FROM SAID MANIFOLD TO SAID LIP, A MOVABLE DIE MEMBER, MEANS MOUNTING SAID MOVABLE DIE MEMBER ON SAID BODY, SAID MOVABLE DIE MEMBER HAVING A DIE LIP PORTION COOPERATING WITH THE SAID LIP OF SAID FIXED DIE MEMBER DEFINING AN ELONGATED EXTRUSION ORIFICE COMMUNICATING WITH SAID EXTRUSION PASSAGEWAY.
Claim 2
Dependent Claim
167 words
A FLAT FILM EXTRUSION DIE COMPRISING A ONE PIECE BODY HAVING MEANS DEFINING A PLASTIC INLET PASSAGEWAY AND A LONGITUDINALLY EXTENDING RECESS COMMUNICATING WITH SAID PASSAGEWAY, A FIXED DIE MEMBER, A WEDGE BAR BETWEEN SAID FIXED DIE MEMEBER AND SAID DIE BODY SECURING SAID FIXED DIE MEMBER IN SEALING RELATION IN SAID RECESS, MEANS IN SAID FIXED DIE MEMBER DEFINING A MANIFOLD CAVITY FORMED IN ONE SIDE THEREOF POSITIONED ADJACENT A COOPERATING SURFACE PORTION OF SAID BODY TO FORM A PLASTIC MANIFOLD DEFINED WHOLLY BETWEEN SAID FIXED DIE MEMBER AND SAID BODY, SAID FIXED DIE MEMBER EXTENDING FROM SAID MANIFOLD AND TERMINATING AT A LIP EXTERNALLY OF SAID BODY AND DEFINING WITH SAID BODY AN ELONGATED EXTRUSION PASSAGEWAY LEADING FROM SAID MANIFOLD TO SAID LIP, A MOVABLE DIE MEMBER, MEANS MOUNTING SAID MOVABLE DIE MEMBER ON SAID BODY, SAID MOVABLE DIE MEMBER HAVING A DIE LIP PORTION COOPERATING WITH THE SAID LIP OF SAID FIXED DIE MEMBER DEFINING AN ELONGATED EXTRUSION ORIFICE COMMUNICATING WITH SAID EXTRUSION PASSAGEWAY.
References Cited (Backward Citations)
BE551760A
Cited
US2204151A
Cited
US2387718A
Cited
US2628386A
Cited
US2730760A
Cited
US2859475A
Cited
US3000054A
Cited
US3063095A
Cited
US3003245A
Cited
US2998624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |