Patent US3422472A successfully refreshed from Google Patents.
US3422472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making drilling screw
Assignee: Illinois Tool Works Inc
•
Filing: 1966-08-05
•
Granted: 1969-01-21
•
Expires: 1986-08-05
Abstract
No abstract record available.
Inventors
- 👤 Henry Pomernacki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:52
CPC Classifications
B; B23; B23G; B23G9/00; B23G9/001; B23G9/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN AN APPARATUS FOR FORMING SHANK TIP PORTIONS OF FASTENER DEVICES, THE COMBINATION COMPRISING MEANS FOR CONTINUOUSLY CONVEYING FASTENER DEVICES HAVING SHANKS ALONG A PREDETERMINED PATH OF TRAVEL, MEANS FOR SUPPORTING A ROTARY SLOTTING TOOL MOUNTED AT A WORK STATION FOR GENERALLY BACK AND FORTH MOVEMENT IN A PREDETERMINED DIRECTION ADJACENT A FIRST PORTION OF SAID PATH OF TRAVEL, SAID CONVEYING MEANS AND SAID TOOL SUPPORTING MEANS BEING MOUNTED FOR RELATIVE MOVEMENT TOWARD EACH OTHER AT SAID FIRST MOUNTED FOR RELATIVE MOVEMENT TOWARD EACH OTHER AT SAID FIRST PATH OF TRAVEL PORTION FOR ENGAGING A TOOL ON THE SUPPORTING MEANS AGAINST A FASTENER DEVICE SHANK AND FORMING A SLOT IN SAID SHANK WHILE THE FASTENER DEVICE IS CONTINUOUSLY MOVING WITH THE CONVEYING MEANS, AND MEANS FOR ACTUATING SAID CONVEYING MEANS AND SAID TOOL SUPPORTING MEANS IN TIMED RELATIONSHIP.
Claim 2
Dependent Claim
138 words
IN AN APPARATUS FOR FORMING SHANK TIP PORTIONS OF FASTENER DEVICES, THE COMBINATION COMPRISING MEANS FOR CONTINUOUSLY CONVEYING FASTENER DEVICES HAVING SHANKS ALONG A PREDETERMINED PATH OF TRAVEL, MEANS FOR SUPPORTING A ROTARY SLOTTING TOOL MOUNTED AT A WORK STATION FOR GENERALLY BACK AND FORTH MOVEMENT IN A PREDETERMINED DIRECTION ADJACENT A FIRST PORTION OF SAID PATH OF TRAVEL, SAID CONVEYING MEANS AND SAID TOOL SUPPORTING MEANS BEING MOUNTED FOR RELATIVE MOVEMENT TOWARD EACH OTHER AT SAID FIRST MOUNTED FOR RELATIVE MOVEMENT TOWARD EACH OTHER AT SAID FIRST PATH OF TRAVEL PORTION FOR ENGAGING A TOOL ON THE SUPPORTING MEANS AGAINST A FASTENER DEVICE SHANK AND FORMING A SLOT IN SAID SHANK WHILE THE FASTENER DEVICE IS CONTINUOUSLY MOVING WITH THE CONVEYING MEANS, AND MEANS FOR ACTUATING SAID CONVEYING MEANS AND SAID TOOL SUPPORTING MEANS IN TIMED RELATIONSHIP.
References Cited (Backward Citations)
US2561966A
Cited
US2621343A
Cited
US2540058A
Cited
US2657402A
Cited
US3085264A
Cited
US3164851A
Cited
US3280412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |