US3413880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing holes in sidewalls of members having channel-like cross sections
Assignee: Toledo Stamping and Manufacturing Co
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Filing: 1965-03-04
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Granted: 1968-12-03
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Expires: 1985-03-04
Abstract
No abstract record available.
Inventors
- 👤 Joesph E Foist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:29
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/32; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0596; Y10T83/384; Y10T83/387; Y10T83/388; Y10T83/395; Y10T83/398
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
A METHOD FOR PRODUCING A SUBSTANTIALLY CIRCULAR OPENING IN A SIDEWALL OF A ROCKER ARM WITH A SUBSTANTIAL EDGE PORTION OF SAID OPENING BEING SUBSTANTIALLY COEXTENSIVE WITH AN ARCUATE BOTTOM WALL THEREOF EXTENDING TRANSVERSELY OF THE SIDEWALL, SAID METHOD COMPRISING SUPPORTING A PUNCH WITHIN SAID ROCKER ARM AND SUBSTANTIALLY TANGENTIALLY TO THE BOTTOM WALL OF THE ROCKER ARM, BACKING UP SAID SIDEWALL AROUND A PORTION THROUGH WHICH SAID OPENING IS TO BE PRODUCED, MOVING SAID PUNCH TOWARD AND THROUGH SAID SIDEWALL, AND FIRMLY SUPPORTING A SUBSTANTIAL PORTION OF SAID BOTTOM WALL OF SAID ROCKER ARM ADJACENT WHICH THE OPENING IS MADE TO PREVENT MOVEMENT OF SAID BOTTOM WALL AWAY FROM SAID PUNCH AS SAID PUNCH APPROACHES SAID SIDEWALL ADJACENT SAID BOTTOM WALL.
References Cited (Backward Citations)
US1758192A
Cited
US2329020A
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US2917033A
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US3074302A
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US3134422A
Cited
US3153897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |