Patent US3096608A successfully refreshed from Google Patents.
US3096608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety blade assembly for rotary mowers
Assignee: Individual
•
Filing: 1962-06-15
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Granted: 1963-07-09
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Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
- 👤 Tom R Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:44
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A SAFETY BLADE ASSEMBLY FOR ROTARY MOWERS, COMPRISING A DIAMETRICAL CUTTER BLADE, AND A CIRCULAR GUARD RING SURROUNDING THE BLADE AND FIXED TO THE ENDS OF THE BLADE, SAID BLADE HAVING A CENTRAL PORTION SPACED ABOVE THE GUARD RING AND HAVING CENTERED MEANS FOR FIXING THE BLADE TO THE MOTOR SHAFT OF A ROTARY MOWER, OUTER END PORTIONS SPACED BELOW AND PARALLEL WITH THE CENTRAL PORTION AND ABOVE THE GUARD RING, THE LEADING EDGES OF SAID OUTER END PORTIONS BEING FORMED WITH CUTTING EDGES, SAID CENTRAL PORTION AND SAID OUTER END PORTIONS BEING FLAT AND DISPOSED IN HORIZONTAL PLANES, AND OUTWARDLY DECLINING PORTIONS ON THE OUTWARD ENDS OF THE CENTRAL PORTION EXTENDING DOWNWARDLY TO AND FIXED TO THE INWARD ENDS OF THE OUTER END PORTIONS, SAID OUTER END PORTIONS TERMINATING AT THEIR OUTWARD ENDS IN DOWNWARDLY AND OUTWARDLY DECLINING TERMINALS FIXED AT THEIR LOWER ENDS TO THE GUARD RING.
Claim 2
Dependent Claim
149 words
A SAFETY BLADE ASSEMBLY FOR ROTARY MOWERS, COMPRISING A DIAMETRICAL CUTTER BLADE, AND A CIRCULAR GUARD RING SURROUNDING THE BLADE AND FIXED TO THE ENDS OF THE BLADE, SAID BLADE HAVING A CENTRAL PORTION SPACED ABOVE THE GUARD RING AND HAVING CENTERED MEANS FOR FIXING THE BLADE TO THE MOTOR SHAFT OF A ROTARY MOWER, OUTER END PORTIONS SPACED BELOW AND PARALLEL WITH THE CENTRAL PORTION AND ABOVE THE GUARD RING, THE LEADING EDGES OF SAID OUTER END PORTIONS BEING FORMED WITH CUTTING EDGES, SAID CENTRAL PORTION AND SAID OUTER END PORTIONS BEING FLAT AND DISPOSED IN HORIZONTAL PLANES, AND OUTWARDLY DECLINING PORTIONS ON THE OUTWARD ENDS OF THE CENTRAL PORTION EXTENDING DOWNWARDLY TO AND FIXED TO THE INWARD ENDS OF THE OUTER END PORTIONS, SAID OUTER END PORTIONS TERMINATING AT THEIR OUTWARD ENDS IN DOWNWARDLY AND OUTWARDLY DECLINING TERMINALS FIXED AT THEIR LOWER ENDS TO THE GUARD RING.
References Cited (Backward Citations)
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Cited
US1336257A
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US2482523A
Cited
US2621568A
Cited
US2887838A
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US3059400A
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |