← Back to Patent Explorer
US3299453A Expired / Lapsed US ⏱️ 0.0 years remaining

Upsetting machine with controllable ejector means for the manufacture of screws, bolts, bolt blanks and the like

Assignee: Nedschroef Octrooi Maatschappij NV
•
Filing: 1964-12-09
•
Granted: 1967-01-24
•
Expires: 1984-12-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Meerendonk Gerardus Corneli De

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 13:51
CPC Classifications
B; B21; B21D; B21D45/00; B21J; B21J13/00; B21J13/08; B21J13/14

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 121 words
IN A MACHINE FOR UPSETTING WORKPIECES FOR THE PRODUCTION OF BOLTS AND THE LIKE, INCLUDING A FRAME, A RECIPROCABLE CARRIAGE MOUNTED FOR RECIPROCATION IN THE FRAME CARRYING A WORKPIECE-UPSETTING MEANS HAVING A FORMING CAVITY FOR RECEIVING A PORTION OF THE WORKPIECE AND MOVABLE TOWARD AND AWAY FROM A MATRIX MOUNTED IN THE FRAME, A RECIPROCABLE WORKPIECE-EJECTING MEMBER MOUNTED IN THE UPSETTING MEANS FOR EJECTING THE WORKPIECE FROM SAID CAVITY AFTER IT HAS BEEN UPSET IN THE CAVITY OF THE UPSETTING MEANS, MECHANISM FOR ACTUATING THE EJECTING MEMBER TO EJECT THE WORKPIECE INCLUDING A CONTROL GUIDEWAY ATTACHED TO THE FRAME, AND AN ACTUATING MEANS MOVABLE ALONG AND IN ENGAGEMENT WITH SAID CONTROL GUIDEWAY AND ACTING ON SAID EJECTING MEMBER, WHEREIN THE IM-
Claim 2
Dependent Claim 121 words
IN A MACHINE FOR UPSETTING WORKPIECES FOR THE PRODUCTION OF BOLTS AND THE LIKE, INCLUDING A FRAME, A RECIPROCABLE CARRIAGE MOUNTED FOR RECIPROCATION IN THE FRAME CARRYING A WORKPIECE-UPSETTING MEANS HAVING A FORMING CAVITY FOR RECEIVING A PORTION OF THE WORKPIECE AND MOVABLE TOWARD AND AWAY FROM A MATRIX MOUNTED IN THE FRAME, A RECIPROCABLE WORKPIECE-EJECTING MEMBER MOUNTED IN THE UPSETTING MEANS FOR EJECTING THE WORKPIECE FROM SAID CAVITY AFTER IT HAS BEEN UPSET IN THE CAVITY OF THE UPSETTING MEANS, MECHANISM FOR ACTUATING THE EJECTING MEMBER TO EJECT THE WORKPIECE INCLUDING A CONTROL GUIDEWAY ATTACHED TO THE FRAME, AND AN ACTUATING MEANS MOVABLE ALONG AND IN ENGAGEMENT WITH SAID CONTROL GUIDEWAY AND ACTING ON SAID EJECTING MEMBER, WHEREIN THE IM-

References Cited (Backward Citations)

US2271257A Cited
US2680860A Cited
US3143008A Cited
US3171144A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-01-23 1970-07-25 1971-01-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-01-23 1974-07-25 1975-01-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-01-23 1978-07-25 1979-01-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag