US3081581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding apparatus
Assignee: Tysaman Machine Co Inc
•
Filing: 1958-08-07
•
Granted: 1963-03-19
•
Expires: 1978-08-07
Abstract
No abstract record available.
Inventors
- 👤 James L Hensley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:20
CPC Classifications
B; B24; B24B; B24B27/00; B24B27/033; B24B27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A MACHINE OF THE CHARACTER DESCRIBED, THE COMBINATION OF A TOOL ADAPTED TO APPLY AN OPERATION TO A SUBSTANTIALLY HORIZONTAL SURFACE OF WORK, AN ARBOR SUPPORTING THE TOOL FOR ROTARY MOTION, A SUPPORTING FRAME, POWER MEANS FOR OPERATING THE TOOL, MEANS MOUNTING THE ARBOR FOR UPWARD AND DOWNWARD ARCUATE MOVEMENTS, A GUIDE ON SAID MOUNTING MEANS, A FLEXIBLE CABLE DEVICE PASSING AROUND SAID GUIDE AND EXTENDING UPWARDLY ON OPPOSITE SIDES THEREOF, ROTARY MEANS ON SAID FRAME ENGAGING ONE UPWARDLY EXTENDING PORTION OF SAID CABLE DEVICE FOR MOVING SAID CABLE DEVICE SO AS TO RAISE AND LOWER SAID ARBOR, POWER MEANS FOR DRIVING SAID ROTARY MEANS, AND COUNTERWEIGHT MEANS OPERATIVELY CONNECTED WITH THE OTHER UPWARDLY EXTENDING PORTION OF SAID CABLE DEVICE FOR EFFECTING COUNTERWEIGHT ACTION ON THE ARBOR.
Claim 2
Dependent Claim
128 words
IN A MACHINE OF THE CHARACTER DESCRIBED, THE COMBINATION OF A TOOL ADAPTED TO APPLY AN OPERATION TO A SUBSTANTIALLY HORIZONTAL SURFACE OF WORK, AN ARBOR SUPPORTING THE TOOL FOR ROTARY MOTION, A SUPPORTING FRAME, POWER MEANS FOR OPERATING THE TOOL, MEANS MOUNTING THE ARBOR FOR UPWARD AND DOWNWARD ARCUATE MOVEMENTS, A GUIDE ON SAID MOUNTING MEANS, A FLEXIBLE CABLE DEVICE PASSING AROUND SAID GUIDE AND EXTENDING UPWARDLY ON OPPOSITE SIDES THEREOF, ROTARY MEANS ON SAID FRAME ENGAGING ONE UPWARDLY EXTENDING PORTION OF SAID CABLE DEVICE FOR MOVING SAID CABLE DEVICE SO AS TO RAISE AND LOWER SAID ARBOR, POWER MEANS FOR DRIVING SAID ROTARY MEANS, AND COUNTERWEIGHT MEANS OPERATIVELY CONNECTED WITH THE OTHER UPWARDLY EXTENDING PORTION OF SAID CABLE DEVICE FOR EFFECTING COUNTERWEIGHT ACTION ON THE ARBOR.
References Cited (Backward Citations)
US324991A
Cited
US365983A
Cited
US449059A
Cited
US772222A
Cited
FR388179A
Cited
US1112015A
Cited
US1294426A
Cited
US1395626A
Cited
DE539125C
Cited
GB473491A
Cited
US2579337A
Cited
US2741277A
Cited
US2807123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |