US3353213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granulating device
Assignee: Oerlikon Barmag AG
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Filing: 1965-11-16
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Granted: 1967-11-21
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Expires: 1985-11-16
Abstract
No abstract record available.
Inventors
- 👤 Niemeyer Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:16
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/02; B29B9/06; B29B9/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
APPARATUS FOR GRANULATING A THERMOPLASTIC MATERIAL COMPRISING: MEANS FOR EXTRUDING SAID THERMOPLASTIC MATERIAL INCLUDING A DIE HAVING A PLANAR FACE FROM WHICH SAID MATERIAL ISSUES AS AT LEAST ONE STRAND; ROTARY CUTTING MEANS INCLUDING A CUTTER HEAD ON A ROTATABLE AND AXIALLY SLIDABLE DRIVE SHAFT AND A KNIFE ASSEMBLY MOUNTED ON SAID CUTTER HEAD TO SWEEP ACROSS SAID PLANAR DIE FACE AND CUT THE EXTRUDED MATERIAL INTO GRANULES; PISTON MEANS INCLUDING A PISTON HOUSING SECURED AGAINST ROTATION AROUND ITS AXIS AND A PISTON ARM COAXIAL WITH AND OPERATIVELY CONNECTED THROUGH SAID DRIVE SHAFT TO SAID ROTARY CUTTING MEANS FOR RAPID AXIAL SHIFTING OF SAID ROTARY CUTTING MEANS TO AND FROM SAID PLANAR FACE OF SAID DIE; AND FINE ADJUSTING MEANS INCLUDING AN AXIALLY FIXED ROTATABLE CYLINDRICAL MEMBER CONCENTRICALLY MOUNTED AROUND SAID PISTON HOUSING IN SUPPORTING CONTACT THEREWITH AND THREADABLY ENGAGED WITH A CYLINDRICAL PORTION OF SAID PISTON HOUSING, WITH MEANS FOR ROTATABLY TURNING SAID CYLINDRICAL MEMBER TO CAUSE A SLOW AND PRECISE AXIAL SHIFTING OF SAID PISTON MEANS TOGETHER WITH SAID ROTARY CUTTING MEANS TOWARD AND AWAY FROM SAID PLANAR DIE FACE.
Claim 2
Dependent Claim
182 words
APPARATUS FOR GRANULATING A THERMOPLASTIC MATERIAL COMPRISING: MEANS FOR EXTRUDING SAID THERMOPLASTIC MATERIAL INCLUDING A DIE HAVING A PLANAR FACE FROM WHICH SAID MATERIAL ISSUES AS AT LEAST ONE STRAND; ROTARY CUTTING MEANS INCLUDING A CUTTER HEAD ON A ROTATABLE AND AXIALLY SLIDABLE DRIVE SHAFT AND A KNIFE ASSEMBLY MOUNTED ON SAID CUTTER HEAD TO SWEEP ACROSS SAID PLANAR DIE FACE AND CUT THE EXTRUDED MATERIAL INTO GRANULES; PISTON MEANS INCLUDING A PISTON HOUSING SECURED AGAINST ROTATION AROUND ITS AXIS AND A PISTON ARM COAXIAL WITH AND OPERATIVELY CONNECTED THROUGH SAID DRIVE SHAFT TO SAID ROTARY CUTTING MEANS FOR RAPID AXIAL SHIFTING OF SAID ROTARY CUTTING MEANS TO AND FROM SAID PLANAR FACE OF SAID DIE; AND FINE ADJUSTING MEANS INCLUDING AN AXIALLY FIXED ROTATABLE CYLINDRICAL MEMBER CONCENTRICALLY MOUNTED AROUND SAID PISTON HOUSING IN SUPPORTING CONTACT THEREWITH AND THREADABLY ENGAGED WITH A CYLINDRICAL PORTION OF SAID PISTON HOUSING, WITH MEANS FOR ROTATABLY TURNING SAID CYLINDRICAL MEMBER TO CAUSE A SLOW AND PRECISE AXIAL SHIFTING OF SAID PISTON MEANS TOGETHER WITH SAID ROTARY CUTTING MEANS TOWARD AND AWAY FROM SAID PLANAR DIE FACE.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |