US3247622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision surface abrading machine
Assignee: Individual
•
Filing: 1963-07-22
•
Granted: 1966-04-26
•
Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur J Hackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:15
CPC Classifications
B; B24; B24B; B24B47/00; B24B47/02; B24B47/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
IN A PRECISION SURFACE ABRADING MACHINE HAVING A BASE, MEANS FOR SUPPORTING A WORK PART AND AN ABRADING TOOL PART FOR ROTARY AND AXIAL RECIPROCATIVE MOVEMENT RELATIVE TO AND IN FRICTIONAL SURFACE CONTACT WITH EACH OTHER IN THE PRESENCE OF AN ABRASIVE COMPOUND, A CYLINDRICAL AND TAPERED ARBOR FOR CARRYING A TOOL PART, THE TOOL PART CYLINDRICAL, INTERNALLY TAPERED, FULLY EXPANSIBLE RADIALLY AND CHANGING ITS CIRCUMFERENCE ACCORDING TO ITS AXIAL POSITION ON THE ARBOR, AND POSITIONING MEANS FOR PRECISELY ADJUSTING THE AXIAL POSITION OF THE TOOL PART ON THE ARBOR, THE POSITIONING MEANS COMPRISING SCREWTHREADED MEANS OPERATING AXIALLY UPON AND IN LINE WITH THE TOOL PART, THE POSITIONING MEANS INCLUDING A SOLID POSITIVE STOP AGAINST WHICH THE TOOL ABUTS IN BEING POSITIONED ON THE ARBOR.
References Cited (Backward Citations)
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Cited
US2115461A
Cited
US2108029A
Cited
GB554466A
Cited
US2563301A
Cited
US2831297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |