← Back to Patent Explorer
US3113676A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for continuous extrusion of metal

Assignee: Individual
•
Filing: 1959-07-20
•
Granted: 1963-12-10
•
Expires: 1979-07-20
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Robert J Harkenrider

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 15:54
CPC Classifications
B; B21; B21C; B21C33/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 177 words
APPARATUS FOR MAKING POSSIBLE THE CONTINUOUS EXTRUSION OF SOLID ELONGATE METAL BILLETS INTO STANDARD COMMERCIAL SHAPES WHEN THE BILLETS ARE ADVANCED TOWARD THE APPARATUS IN END TO END TANDEM ARRANGEMENT, SAID APPARATUS COMPRISING A RIGID TUBULAR CYLINDER, A HARDENED DIE PLATE POSITIONED IN ABUTTING RELATION WITH ONE END OF SAID CYLINDER AND FORMED WITH AN EXTRUDING PASSAGE IN ALIGNMENT WITH THE BORE OF SAID CYLINDER, SAID PASSAGE DEFINING A STANDARD COMMERCIAL SHAPE, SAID DIE PLATE AND SAID BORE OF SAID CYLINDER DEFINING A COMPRESSION CHAMBER, MEANS FOR FIXEDLY MOUNTING SAID CYLINDER AND SAID DIE PLATE, A ROLLER BED POSITIONED ADJACENT THE OTHER END OF SAID CYLINDER AND IN ALIGNMENT WITH SAID BORE, SAID ROLLER BED COMPRISING SPACED PAIRS OF DIAMETRICALLY OPPOSED ROLLERS JOURNALLED FOR ROTATION ABOUT AXES EXTENDING TRANSVERELY OF THE AXIS OF SAID CYLINDER BORE AND SPACED LATERALLY OF SAID BORE AXIS, SAID ROLLERS DEFINING A RECTILINEAR BILLET FEED PASSAGE IN ALIGNMENT WITH SAID BORE, WITH A PLURALITY OF SAID PAIRS OF ROLLERS BEING ARRANGED IN CLOSELY SPACED RELATION ADJACENT SAID OTHER END OF SAID CYLINDER,
Claim 2
Dependent Claim 177 words
APPARATUS FOR MAKING POSSIBLE THE CONTINUOUS EXTRUSION OF SOLID ELONGATE METAL BILLETS INTO STANDARD COMMERCIAL SHAPES WHEN THE BILLETS ARE ADVANCED TOWARD THE APPARATUS IN END TO END TANDEM ARRANGEMENT, SAID APPARATUS COMPRISING A RIGID TUBULAR CYLINDER, A HARDENED DIE PLATE POSITIONED IN ABUTTING RELATION WITH ONE END OF SAID CYLINDER AND FORMED WITH AN EXTRUDING PASSAGE IN ALIGNMENT WITH THE BORE OF SAID CYLINDER, SAID PASSAGE DEFINING A STANDARD COMMERCIAL SHAPE, SAID DIE PLATE AND SAID BORE OF SAID CYLINDER DEFINING A COMPRESSION CHAMBER, MEANS FOR FIXEDLY MOUNTING SAID CYLINDER AND SAID DIE PLATE, A ROLLER BED POSITIONED ADJACENT THE OTHER END OF SAID CYLINDER AND IN ALIGNMENT WITH SAID BORE, SAID ROLLER BED COMPRISING SPACED PAIRS OF DIAMETRICALLY OPPOSED ROLLERS JOURNALLED FOR ROTATION ABOUT AXES EXTENDING TRANSVERELY OF THE AXIS OF SAID CYLINDER BORE AND SPACED LATERALLY OF SAID BORE AXIS, SAID ROLLERS DEFINING A RECTILINEAR BILLET FEED PASSAGE IN ALIGNMENT WITH SAID BORE, WITH A PLURALITY OF SAID PAIRS OF ROLLERS BEING ARRANGED IN CLOSELY SPACED RELATION ADJACENT SAID OTHER END OF SAID CYLINDER,

References Cited (Backward Citations)

US604137A Cited
US1350307A Cited
US2075622A Cited
DE852832C Cited
US2290734A Cited
US2225424A Cited
US2476830A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-12-09 1967-06-10 1967-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-12-09 1971-06-10 1971-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-12-09 1975-06-10 1975-12-10 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag