Patent US3422579A successfully refreshed from Google Patents.
US3422579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor machine
Assignee: Cooper Industries LLC
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Filing: 1966-11-07
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Granted: 1969-01-21
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Expires: 1986-11-07
Abstract
No abstract record available.
Inventors
- 👤 John C Rogge
- 👤 George W Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:10
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/18; B24B7/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A FLOOR SANDING MACHINE HAVING A SANDING UNIT AT ONE PORTION, A CASTER SPACED FROM SAID ONE PORTION, AND RESILIENTLY MOUNTED WHEELS THEREBETWEEN, THE WEIGHT OF SAID SANDING MACHINE BEING SUPPORTED ON ALL THREE OF SAID SANDING UNIT, CASTER, AND WHEELS, SAID CASTER MOVING 180* BETWEEN A POSITION AWAY FROM SAID WHEELS AND A POSITION NEARER SAID WHEELS WHEN THE DIRECTION OF THE SANDER IS REVERSED, SAID CASTER INCLUDING A CASTER WHEEL, A YOKE ROTATABLY CARRYING SAID CASTER WHEEL, AND AN AXLE CARRYING SAID YOKE FOR PIVOTAL MOVEMENT RELATIVE TO SAID MACHINE, SAID AXLE LYING IN A VERTICAL PLANE EXTENDING LONGITUDINALLY THROUGH THE SANDING MACHINE BUT TILTING AT AN ANGLE TOWARD SAID WHEELS SO THAT SAID CASTER WHEEL IS HIGHER WHEN PIVOTED AWAY FROM SAID WHELLS THAN WHEN PIVOTED NEARER SAID WHEELS.
Claim 2
Dependent Claim
132 words
A FLOOR SANDING MACHINE HAVING A SANDING UNIT AT ONE PORTION, A CASTER SPACED FROM SAID ONE PORTION, AND RESILIENTLY MOUNTED WHEELS THEREBETWEEN, THE WEIGHT OF SAID SANDING MACHINE BEING SUPPORTED ON ALL THREE OF SAID SANDING UNIT, CASTER, AND WHEELS, SAID CASTER MOVING 180* BETWEEN A POSITION AWAY FROM SAID WHEELS AND A POSITION NEARER SAID WHEELS WHEN THE DIRECTION OF THE SANDER IS REVERSED, SAID CASTER INCLUDING A CASTER WHEEL, A YOKE ROTATABLY CARRYING SAID CASTER WHEEL, AND AN AXLE CARRYING SAID YOKE FOR PIVOTAL MOVEMENT RELATIVE TO SAID MACHINE, SAID AXLE LYING IN A VERTICAL PLANE EXTENDING LONGITUDINALLY THROUGH THE SANDING MACHINE BUT TILTING AT AN ANGLE TOWARD SAID WHEELS SO THAT SAID CASTER WHEEL IS HIGHER WHEN PIVOTED AWAY FROM SAID WHELLS THAN WHEN PIVOTED NEARER SAID WHEELS.
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) | 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 |