Patent US3343390A successfully refreshed from Google Patents.
US3343390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tools for finishing surfaces
Assignee: Individual
•
Filing: 1965-02-01
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Granted: 1967-09-26
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Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Harris Claude Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:10
CPC Classifications
B; B24; B24B; B24B39/00; B24B39/02; B24B39/023; Y; Y10; Y10S; Y10S72/00; Y10S72/703; Y10T; Y10T29/00; Y10T29/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A ROLLING HEAD HAVING A ROTATABLE BODY PART, A PLURALITY OF ROTATABLE ROLLERS WHICH ARE ANGULARLY SPACED AROUND AN OUTER PERIPHERY OF THE BODY PART AND EACH OF WHICH IS MOUNTED ON THE BODY PART FOR INDEPENDENT FLOATING MOVEMENT RADIALLY OF THE HEAD, AND TWO HYDRAULIC PISTONS ASSOCIATED WITH EACH ROLLER AND SLIDABLE IN SEPARATE PARALLEL AND ADJACENT BORES IN THE BODY PART, EACH ROLLER BEING MOUNTED BETWEEN THE CORESPONDING TWO PISTONS, WITH ROTATIONAL AXES OF THE ROLLERS BEING SKEWED THROUGH A SMALL ANGLE RELATIVELY TO THE ROTATIONAL AXIS OF THE HEAD TO PROVIDE A "LEAD-IN" WHICH CAUSES OR ASSISTS THE ROLLING HEAD TO MOVE PROGRESSIVELY ALONG A BORE BEING FINISHED.
Claim 2
Dependent Claim
111 words
A ROLLING HEAD HAVING A ROTATABLE BODY PART, A PLURALITY OF ROTATABLE ROLLERS WHICH ARE ANGULARLY SPACED AROUND AN OUTER PERIPHERY OF THE BODY PART AND EACH OF WHICH IS MOUNTED ON THE BODY PART FOR INDEPENDENT FLOATING MOVEMENT RADIALLY OF THE HEAD, AND TWO HYDRAULIC PISTONS ASSOCIATED WITH EACH ROLLER AND SLIDABLE IN SEPARATE PARALLEL AND ADJACENT BORES IN THE BODY PART, EACH ROLLER BEING MOUNTED BETWEEN THE CORESPONDING TWO PISTONS, WITH ROTATIONAL AXES OF THE ROLLERS BEING SKEWED THROUGH A SMALL ANGLE RELATIVELY TO THE ROTATIONAL AXIS OF THE HEAD TO PROVIDE A "LEAD-IN" WHICH CAUSES OR ASSISTS THE ROLLING HEAD TO MOVE PROGRESSIVELY ALONG A BORE BEING FINISHED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |