Patent US3352191A successfully refreshed from Google Patents.
US3207019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for shearing sheet material
Assignee: Pirelli and C SpA
•
Filing: 1962-03-05
•
Granted: 1965-09-21
•
Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Vanzo Marcello
- 👤 Colombo Giovanni Ermanno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:38
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/46; B26; B26D; B26D1/00; B26D1/01; B26D1/04; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/463; Y10T83/4632; Y10T83/647; Y10T83/6579; Y10T83/748; Y10T83/7487; Y10T83/7547; Y10T83/768; Y10T83/7751; Y10T83/7755; Y10T83/7763; Y10T83/7776; Y10T83/778; Y10T83/7863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A MACHINE FOR SHEARING SHEET MATERIAL, IN PARTICULAR SHEET MATERIAL REINFORCED WITH MEAL ELEMENTS, AT PREESTABLISHED ANGLES VARYING WITHIN A WIDE RANGE, COMPRISING A CIRCULAR BLADE ROTATABLE ABOUT ITS OWN AXIS AND MOVEABLE IN A SHEARING DIRECTION, AND A RECTILINEAR COUNTERBLADE AGAINST WHICH SAID ROTATABLE BLADE IS ADAPTED TO BEAR, SAID COUNTER-BLADE HAVING A FLAT TOP SURFACE POSITIONED TO SUPPORT THE SHEET MATERIAL ALONG THE DIRECTION OF SAID CONTIGUOUS TO THE LINE OF CUT, MEANS COOPERATING WITH SAID COUNTER-BLADE SURFACE FOR CLAMPING THE SHEET MATERIAL CONTIGUOUS TO THE LINE OF CUT, THE PERIPHEAL SPEED OF THE CIRCULAR BLADE BEING SLIGHTLY HIGHER THAN ITS TRAVERSE SPEED AND THE PLANE OF SAID CIRCULAR BLADE FORMING A SMALL ANGLE WITH RESPECT TO THE PLANE OF THE RECTILINEAR BLADE, THE AXIS OF THE CIRCULAR BLADE REMAINING IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE PLANE OF THE RECTILINEAR BLADE AND AT A DISTANCE FROM THE EDGE OF THE COUNTER-BLADE WHICH IS SMALLER THAN THE RADIUS OF SAID CIRCULAR BLADE.
Claim 2
Dependent Claim
164 words
A MACHINE FOR SHEARING SHEET MATERIAL, IN PARTICULAR SHEET MATERIAL REINFORCED WITH MEAL ELEMENTS, AT PREESTABLISHED ANGLES VARYING WITHIN A WIDE RANGE, COMPRISING A CIRCULAR BLADE ROTATABLE ABOUT ITS OWN AXIS AND MOVEABLE IN A SHEARING DIRECTION, AND A RECTILINEAR COUNTERBLADE AGAINST WHICH SAID ROTATABLE BLADE IS ADAPTED TO BEAR, SAID COUNTER-BLADE HAVING A FLAT TOP SURFACE POSITIONED TO SUPPORT THE SHEET MATERIAL ALONG THE DIRECTION OF SAID CONTIGUOUS TO THE LINE OF CUT, MEANS COOPERATING WITH SAID COUNTER-BLADE SURFACE FOR CLAMPING THE SHEET MATERIAL CONTIGUOUS TO THE LINE OF CUT, THE PERIPHEAL SPEED OF THE CIRCULAR BLADE BEING SLIGHTLY HIGHER THAN ITS TRAVERSE SPEED AND THE PLANE OF SAID CIRCULAR BLADE FORMING A SMALL ANGLE WITH RESPECT TO THE PLANE OF THE RECTILINEAR BLADE, THE AXIS OF THE CIRCULAR BLADE REMAINING IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE PLANE OF THE RECTILINEAR BLADE AND AT A DISTANCE FROM THE EDGE OF THE COUNTER-BLADE WHICH IS SMALLER THAN THE RADIUS OF SAID CIRCULAR BLADE.
References Cited (Backward Citations)
US1162727A
Cited
US852964A
Cited
US878527A
Cited
US1888754A
Cited
US1888744A
Cited
GB441648A
Cited
US2381571A
Cited
US2749981A
Cited
US3072004A
Cited
US3138049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |