US3168759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core punch and bottom stop therefor
Assignee: Cincinnati Shaper Co
•
Filing: 1963-01-17
•
Granted: 1965-02-09
•
Expires: 1983-01-17
Abstract
No abstract record available.
Inventors
- 👤 Johannigman Jerome Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:54
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/04; B22; B22F; B22F3/00; B22F3/02; B22F3/03; Y; Y10; Y10S; Y10S425/00; Y10S425/005; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063; Y10T74/20636; Y10T74/21; Y10T74/2193; Y10T74/2194; Y10T74/2196
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A COMPACTING PRESS HAVING A DIE, A CORE PUNCH AND A FIXED BOTTOM PUNCH, AND A FLUID PISTON SECURED TO SAID CORE PUNCH AND OPERATING IN A FLUID CYLINDER, AND MEANS FOR SUPPLYING FLUID PRESSURE TO SAID CYLINDER SELECTIVELY ABOVE SAID PISTON TO EJECT SAID CORE PUNCH FROM SAID DIE, AND BELOW SAID PISTON TO PROJECT IT THEREINTO; AN ADJUSTABLE POSITIVE BOTTOM STOP TO STOP SAID PISTON INTERMEDIATE ITS STROKE, TO HOLD SAID CORE PUNCH IN A DESIRED PROJECTED KPOSITION DURING THE COMPACTING AND EXTERNAL EJECTION OPERATIONS ON A WORKPIECE, AND MEANS TO RELEASE SAID BOTTOM STOP UPON COMPLETION OF EXTERNAL EJECTION, TO PERMIT SAID PISTON TO COMPLETE ITS STROKE, WHEREBY SAID CORE PUNCH MAY BE EJECTED FROM SAID WORKPIECE BY FLUID PRESSURE ABOVE SAID PISTON.
Claim 2
Dependent Claim
127 words
IN A COMPACTING PRESS HAVING A DIE, A CORE PUNCH AND A FIXED BOTTOM PUNCH, AND A FLUID PISTON SECURED TO SAID CORE PUNCH AND OPERATING IN A FLUID CYLINDER, AND MEANS FOR SUPPLYING FLUID PRESSURE TO SAID CYLINDER SELECTIVELY ABOVE SAID PISTON TO EJECT SAID CORE PUNCH FROM SAID DIE, AND BELOW SAID PISTON TO PROJECT IT THEREINTO; AN ADJUSTABLE POSITIVE BOTTOM STOP TO STOP SAID PISTON INTERMEDIATE ITS STROKE, TO HOLD SAID CORE PUNCH IN A DESIRED PROJECTED KPOSITION DURING THE COMPACTING AND EXTERNAL EJECTION OPERATIONS ON A WORKPIECE, AND MEANS TO RELEASE SAID BOTTOM STOP UPON COMPLETION OF EXTERNAL EJECTION, TO PERMIT SAID PISTON TO COMPLETE ITS STROKE, WHEREBY SAID CORE PUNCH MAY BE EJECTED FROM SAID WORKPIECE BY FLUID PRESSURE ABOVE SAID PISTON.
References Cited (Backward Citations)
US474496A
Cited
US1475032A
Cited
US2338491A
Cited
US2398227A
Cited
US2762078A
Cited
US2810929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-09 | 1968-08-10 | 1969-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-09 | 1972-08-10 | 1973-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-09 | 1976-08-10 | 1977-02-09 | $7700.00 | Window Closed / Lapsed |