Patent US3087295A successfully refreshed from Google Patents.
US3087295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn edging and trimming tool
Assignee: Individual
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Filing: 1961-03-06
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Granted: 1963-04-30
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Edward L Grupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:05
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/835; A01D34/84; B; B24; B24B; B24B3/00; B24B3/24; B24B3/247; B24B41/00; B24B41/06; B24B41/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN A WATER-POWERED GRASS CUTTING TOOL HAVING A CASING WITH A TURBINE ROTOR ROTATABLY MOUNTED THEREIN AND A GRASS CUTTING BLADE DRIVEN BY THE ROTOR, THE MEANS FOR DELIVERING A JET STREAM OF WATER INTO SAID CASING, COMPRISING: A CASING COMPRISING TWO SIMILAR HALVES MEETING ALONG A MEDIAN PLANE PERPENDICULAR TO THE AXIS OF ROTATION OF SAID TURBINE ROTOR, EACH HALF OF THE CASING HAVING A BOSS WITH A SEMI-CYLINDRICAL RECESS AND COOPERATING WITH THE CORRESPONDING BOSS ON THE OTHER HALF OF THE CASING TO DEFINE A CYLINDRICAL PASSAGE OPENING INTO THE CASING INTERIOR AND HAVING ITS AXIS DIRECTED TANGENTIALLY OF THE ROTOR; A HOLLOW CYLINDRICAL HANDLE FOR GUIDING AND MANIPULATING THE TOOL AND HAVING ITS LOWER END INSERTABLE INTO SAID ELONGATE PASSAGE TO BE GRIPPED BETWEEN THE TWO BOSSES, THE LOWER END OF THE HANDLE TERMINATING IN A TAPERED SECTION FORMING A NOZZLE OF REDUCED DIAMETER PROJECTING A STREAM OF FLUID ISSUING FROM THE NOZZLE AGAINST THE TURBINE ROTOR, AND MEANS AT THE OTHER END OF THE HOLLOW HANDLE FOR CONNECTING THE HANDLE TO A SOURCE OF OPERATING FLUID UNDER PRESSURE.
Claim 2
Dependent Claim
182 words
IN A WATER-POWERED GRASS CUTTING TOOL HAVING A CASING WITH A TURBINE ROTOR ROTATABLY MOUNTED THEREIN AND A GRASS CUTTING BLADE DRIVEN BY THE ROTOR, THE MEANS FOR DELIVERING A JET STREAM OF WATER INTO SAID CASING, COMPRISING: A CASING COMPRISING TWO SIMILAR HALVES MEETING ALONG A MEDIAN PLANE PERPENDICULAR TO THE AXIS OF ROTATION OF SAID TURBINE ROTOR, EACH HALF OF THE CASING HAVING A BOSS WITH A SEMI-CYLINDRICAL RECESS AND COOPERATING WITH THE CORRESPONDING BOSS ON THE OTHER HALF OF THE CASING TO DEFINE A CYLINDRICAL PASSAGE OPENING INTO THE CASING INTERIOR AND HAVING ITS AXIS DIRECTED TANGENTIALLY OF THE ROTOR; A HOLLOW CYLINDRICAL HANDLE FOR GUIDING AND MANIPULATING THE TOOL AND HAVING ITS LOWER END INSERTABLE INTO SAID ELONGATE PASSAGE TO BE GRIPPED BETWEEN THE TWO BOSSES, THE LOWER END OF THE HANDLE TERMINATING IN A TAPERED SECTION FORMING A NOZZLE OF REDUCED DIAMETER PROJECTING A STREAM OF FLUID ISSUING FROM THE NOZZLE AGAINST THE TURBINE ROTOR, AND MEANS AT THE OTHER END OF THE HOLLOW HANDLE FOR CONNECTING THE HANDLE TO A SOURCE OF OPERATING FLUID UNDER PRESSURE.
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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |