Patent US3294502A successfully refreshed from Google Patents.
US3294502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing polishing wheel
Assignee: Schaffner Manufacturing Co Inc
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Filing: 1962-05-09
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Granted: 1966-12-27
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Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Paul E Schaffner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:05
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
THE METHOD OF FORMING A POLISHING WHEEL FROM A PLURALITY OF FLAPS COMPRISING FORMING SAID FLAPS INTO AN ANNULUS, CONFINING A LIQUID EPOXY-RESIN ADHESIVE WITHIN THE OPENING OF SAID ANNULUS IN COMMUNICATION WITH THE ENDS OF SAID FLAPS BOUNDING SAID OPENING, ROTATING SAID ADHESIVE AT A FIRST PREDETERMINED SPEED SO THAT SAID ADHESIVE IS CAUSED BY CENTRIFUGAL FORCE TO PENETRATE INTO SAID ENDS OF SAID FLAPS, ROTATING SAID ANNULUS AT A SECOND SPEED DIFFERENT FROM SAID FIRST SPEED SO THAT SAID ADHESIVE WHICH HAS PENETRATED INTO SAID ENDS IN CAUSED BY CENTRIFUGAL FORCE TO PENETRATE BETWEEN THE SURFACES CONTIGUOUS TO SAID ENDS, AND THEREAFTER HEATING SAID ADHESIVE TO CAUSE SAID ADHESIVE SO THAT SAID ADHESIVE HARDENS FORMING SAID ANNULUS INTO A WHEEL WITH A SUBSTANTIALLY SOLID HUB, THE VISCOSITY OF SAID ADHESIVE BEING SO RELATED TO SAID FIRST AND SECOND SPEEDS THAT SAID ADHESIVE PENETRATES BETWEEN SAID CONTIGUOUS SURFACES ONLY FOR A PREDETERMINED DISTANCE ALONG SAID FLAPS, SAID DISTANCE BEING SUCH THAT SAID FLAPS EXTENDIND FREELY FROM SAID HUB OVER A SUBSTANTIAL PORTION OF THEIR LENGTH.
Claim 2
Independent Claim
176 words
THE METHOD OF FORMING A POLISHING WHEEL FROM A PLURALITY OF FLAPS COMPRISING FORMING SAID FLAPS INTO AN ANNULUS, CONFINING A LIQUID EPOXY-RESIN ADHESIVE WITHIN THE OPENING OF SAID ANNULUS IN COMMUNICATION WITH THE ENDS OF SAID FLAPS BOUNDING SAID OPENING, ROTATING SAID ADHESIVE AT A FIRST PREDETERMINED SPEED SO THAT SAID ADHESIVE IS CAUSED BY CENTRIFUGAL FORCE TO PENETRATE INTO SAID ENDS OF SAID FLAPS, ROTATING SAID ANNULUS AT A SECOND SPEED DIFFERENT FROM SAID FIRST SPEED SO THAT SAID ADHESIVE WHICH HAS PENETRATED INTO SAID ENDS IN CAUSED BY CENTRIFUGAL FORCE TO PENETRATE BETWEEN THE SURFACES CONTIGUOUS TO SAID ENDS, AND THEREAFTER HEATING SAID ADHESIVE TO CAUSE SAID ADHESIVE SO THAT SAID ADHESIVE HARDENS FORMING SAID ANNULUS INTO A WHEEL WITH A SUBSTANTIALLY SOLID HUB, THE VISCOSITY OF SAID ADHESIVE BEING SO RELATED TO SAID FIRST AND SECOND SPEEDS THAT SAID ADHESIVE PENETRATES BETWEEN SAID CONTIGUOUS SURFACES ONLY FOR A PREDETERMINED DISTANCE ALONG SAID FLAPS, SAID DISTANCE BEING SUCH THAT SAID FLAPS EXTENDIND FREELY FROM SAID HUB OVER A SUBSTANTIAL PORTION OF THEIR LENGTH.
References Cited (Backward Citations)
US2749224A
Cited
US2843469A
Cited
US2808689A
Cited
US2991165A
Cited
US3102010A
Cited
US3206786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |