Patent US3345854A successfully refreshed from Google Patents.
US3345854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruder having means for exchanging pressure plates and dies
Assignee: Hydraulik GmbH
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Filing: 1965-11-02
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Granted: 1967-10-10
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Expires: 1985-11-02
Abstract
No abstract record available.
Inventors
- 👤 Gross Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:12
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/21; B21C23/212; B21C23/214
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN EXTRUDER COMPRISING AN EXTRUDER BODY HAVING AN OPENING THROUGH WHICH MATERIAL IS EXTRUDED, A ROTATABLE SHAFT ADJACENT SAID EXTRUDER BODY, A FIRST AXIALLY MOVABLE CARRIER ARM FREELY ROTATABLE ON SAID SHAFT AND HAVING A PLURALITY OF EXCHANGEABLE INTERMEDIATE PRESSURE PIECES THEREON ARRANGED IN CIRCUMFERENTIALLY SPACED RELATIONSHIP, A SECOND CARRIER ARM AFFIXED TO SAID SHAFT FOR ROTATION THEREBY AND DISPOSED ALONGSIDE SAID FIRST MOVABLE CARRIER ARM AND HAVING A PLURALITY OF EXCHANGEABLE PRESSURE DIES THEREON ARRANGED IN CIRCUMFERENTIALLY SPACED RELATIONSHIP, INTERENGAGEABLE COUPLING MEANS DEFINED ON SAID FIRST AND SECOND CARRIER ARMS ENGAGEABLE WHEN SAID FIRST AND SECOND CARRIER ARMS ARE SUBSTANTIALLY ABUTTING AND DISENGAGEABLE WHEN THEY ARE SEPARATE BY RELATIVE AXIAL MOVEMENT OF SAID FIRST CARRIER ARM IN RESPECT TO SAID SHAFT, AND LOCKING AND RELEASING MEANS FOR HOLDING SAID FIRST CARRIER IN A STATIONARY POSITION AT WHICH IT IS SPACED AXIALLY FROM SAID SECOND CARRIER TO PREVENT ITS ROTATION
Claim 2
Dependent Claim
150 words
AN EXTRUDER COMPRISING AN EXTRUDER BODY HAVING AN OPENING THROUGH WHICH MATERIAL IS EXTRUDED, A ROTATABLE SHAFT ADJACENT SAID EXTRUDER BODY, A FIRST AXIALLY MOVABLE CARRIER ARM FREELY ROTATABLE ON SAID SHAFT AND HAVING A PLURALITY OF EXCHANGEABLE INTERMEDIATE PRESSURE PIECES THEREON ARRANGED IN CIRCUMFERENTIALLY SPACED RELATIONSHIP, A SECOND CARRIER ARM AFFIXED TO SAID SHAFT FOR ROTATION THEREBY AND DISPOSED ALONGSIDE SAID FIRST MOVABLE CARRIER ARM AND HAVING A PLURALITY OF EXCHANGEABLE PRESSURE DIES THEREON ARRANGED IN CIRCUMFERENTIALLY SPACED RELATIONSHIP, INTERENGAGEABLE COUPLING MEANS DEFINED ON SAID FIRST AND SECOND CARRIER ARMS ENGAGEABLE WHEN SAID FIRST AND SECOND CARRIER ARMS ARE SUBSTANTIALLY ABUTTING AND DISENGAGEABLE WHEN THEY ARE SEPARATE BY RELATIVE AXIAL MOVEMENT OF SAID FIRST CARRIER ARM IN RESPECT TO SAID SHAFT, AND LOCKING AND RELEASING MEANS FOR HOLDING SAID FIRST CARRIER IN A STATIONARY POSITION AT WHICH IT IS SPACED AXIALLY FROM SAID SECOND CARRIER TO PREVENT ITS ROTATION
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |