US3112593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary lawn tool
Assignee: Individual
•
Filing: 1961-01-30
•
Granted: 1963-12-03
•
Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Jacob A Ronning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:55
CPC Classifications
A; A01; A01D; A01D51/00; A01D90/00; E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A MOBILE ROTARY LAWN TOOL, ROTARY SHAFT MEANS, MEANS JOURNALLING SAID SHAFT MEANS FOR ROTATION ON A HORIZONTAL AXIS EXTENDING TRANSVERSELY OF THE DIRECTION OF TRAVEL OF THE TOOL, CIRCUMFERENTIALLY SPACED AXIALLY EXTENDED ROWS OF AXIALLY SPACED RADIAL BLADES PIVOTALLY MOUNTED ON SAID SHAFT MEANS, SAID BLADES BEING ADAPTED TO PASS BETWEEN UPSTANDING BLADES OF LIVE GRASS TO RAKE THE GRASS AND TO CHOP GENERALLY HORIZONTALLY DISPOSED PORTIONS OF THATCH-FORMING DEAD GRASS CLIPPINGS AND FOREIGN MATERIAL IN THE GRASS, CIRCUMFERENTIALLY SPACED AXIALLY EXTENDED ROWS OF FLEXIBLE RADIAL BRUSH ELEMENTS FIXEDLY MOUNTED ON SAID SHAFT MEANS CIRCUMFERENTIALLY BETWEEN SAID ROWS OF CUTTER BLADES, SAID BRUSH ELEMENTS EXTENDING RADIALLY FROM THE SHAFT MEANS A DISTANCE SUBSTANTIALLY EQUAL TO SAID BLADES TO ENGAGE AND SWEEP SAID CHOPPED MATERIAL, AND MEANS FOR IMPARTING ROTATION TO SAID SHAFT MEANS.
Claim 2
Dependent Claim
135 words
IN A MOBILE ROTARY LAWN TOOL, ROTARY SHAFT MEANS, MEANS JOURNALLING SAID SHAFT MEANS FOR ROTATION ON A HORIZONTAL AXIS EXTENDING TRANSVERSELY OF THE DIRECTION OF TRAVEL OF THE TOOL, CIRCUMFERENTIALLY SPACED AXIALLY EXTENDED ROWS OF AXIALLY SPACED RADIAL BLADES PIVOTALLY MOUNTED ON SAID SHAFT MEANS, SAID BLADES BEING ADAPTED TO PASS BETWEEN UPSTANDING BLADES OF LIVE GRASS TO RAKE THE GRASS AND TO CHOP GENERALLY HORIZONTALLY DISPOSED PORTIONS OF THATCH-FORMING DEAD GRASS CLIPPINGS AND FOREIGN MATERIAL IN THE GRASS, CIRCUMFERENTIALLY SPACED AXIALLY EXTENDED ROWS OF FLEXIBLE RADIAL BRUSH ELEMENTS FIXEDLY MOUNTED ON SAID SHAFT MEANS CIRCUMFERENTIALLY BETWEEN SAID ROWS OF CUTTER BLADES, SAID BRUSH ELEMENTS EXTENDING RADIALLY FROM THE SHAFT MEANS A DISTANCE SUBSTANTIALLY EQUAL TO SAID BLADES TO ENGAGE AND SWEEP SAID CHOPPED MATERIAL, AND MEANS FOR IMPARTING ROTATION TO SAID SHAFT MEANS.
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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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |