US3107381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrugated tube for rotary brushes
Assignee: PPG Industries Inc
•
Filing: 1959-07-01
•
Granted: 1963-10-22
•
Expires: 1979-07-01
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Tilgner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:26
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/001; A46B13/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A ROTARY, POWER-DRIVEN BRUSH COMPRISING A MANDREL, WHICH IS A SHEET OF METAL CONSTITUTING A TUBE, BUSHINGS DISPOSED WITHIN THE TUBE, SAID TUBE FURTHER HAVING SLOTS FORMED THEREIN AND U-SHAPED CLIPS HAVING BIGHT PORTIONS DISPOSED WITHIN THE TUBE AND LEGS RADIALLY OUTWARDLY EXTENDING THROUGH THE SLOTS, THE CLIPS OF FLATTENED SECTION, AND A BRUSH STRIP COMPRISING A CHANNEL BACKING WOUND ABOUT THE MANDREL, THE CLIPS ENGAGING THE TURNS OF THE BRUSH STRIP AND MEANS SECURING THE STRIP IN THE CLIPS, SAID MEANS COMPRISING SCREWS THROUGH THE SIDES OF EACH OF THE CLIPS AND ENGAGING THE SIDE WALLS OF THE CHANNEL BACKING OF THE STRIP.
Claim 2
Dependent Claim
104 words
A ROTARY, POWER-DRIVEN BRUSH COMPRISING A MANDREL, WHICH IS A SHEET OF METAL CONSTITUTING A TUBE, BUSHINGS DISPOSED WITHIN THE TUBE, SAID TUBE FURTHER HAVING SLOTS FORMED THEREIN AND U-SHAPED CLIPS HAVING BIGHT PORTIONS DISPOSED WITHIN THE TUBE AND LEGS RADIALLY OUTWARDLY EXTENDING THROUGH THE SLOTS, THE CLIPS OF FLATTENED SECTION, AND A BRUSH STRIP COMPRISING A CHANNEL BACKING WOUND ABOUT THE MANDREL, THE CLIPS ENGAGING THE TURNS OF THE BRUSH STRIP AND MEANS SECURING THE STRIP IN THE CLIPS, SAID MEANS COMPRISING SCREWS THROUGH THE SIDES OF EACH OF THE CLIPS AND ENGAGING THE SIDE WALLS OF THE CHANNEL BACKING OF THE STRIP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |