US4157119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manual grading tool
Assignee: Individual
•
Filing: 1977-07-20
•
Granted: 1979-06-05
•
Expires: 1997-07-20
Abstract
Abstract A combination tool having teeth on one side for both loosening and raking soil or material on the surface of ground and having on its opposite side a portion with a substantially flat bottom for smoothing such soil or material in a manual trowel-like action.
Inventors
- 👤 Everett S. Litchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:53
CPC Classifications
A; A01; A01B; A01B1/00; A01B1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
251 words
In a landscraping and grading tool the combination of: (a) An elongated handle suitable for manual use while the operator stands in an upright position, (b) An enlarged portion integral with and positioned at the end of the handle and of such construction that the hands and abdomen of the operator may abut same when applying force to the device, (c) A base member being a flat, rectangular, bottom portion suitable for contacting the ground and two oppositely disposed substantially vertical side portions integral therewith and extending upwardly therefrom, said base member having a smooth, rounded juncture between the bottom portion and the side portions extending along the entire edge of each side of the bottom portion which broders a side portion and the corresponding bottom edge of each side portion wherein the sides slope inwardly towards each other forming an angle of approximately fifteen (15) degrees in respect to a line perpendicular to the bottom portion, and wherein the height of the side portions is about one and one half times the lateral width of the bottom portion, (d) A plurality of blades suitable for harrowing the ground, and, (e) Connecting means secured to the end of the handle opposite that of the enlarged portion and which means retains both the base member and the blades in such space relationship with each other that an operator can cause, alternately, the base member and the blades to contact the ground for comfortable and effective use simply by manually rotating the handle.
Claim 2
Dependent Claim
251 words
In a landscraping and grading tool the combination of: (a) An elongated handle suitable for manual use while the operator stands in an upright position, (b) An enlarged portion integral with and positioned at the end of the handle and of such construction that the hands and abdomen of the operator may abut same when applying force to the device, (c) A base member being a flat, rectangular, bottom portion suitable for contacting the ground and two oppositely disposed substantially vertical side portions integral therewith and extending upwardly therefrom, said base member having a smooth, rounded juncture between the bottom portion and the side portions extending along the entire edge of each side of the bottom portion which broders a side portion and the corresponding bottom edge of each side portion wherein the sides slope inwardly towards each other forming an angle of approximately fifteen (15) degrees in respect to a line perpendicular to the bottom portion, and wherein the height of the side portions is about one and one half times the lateral width of the bottom portion, (d) A plurality of blades suitable for harrowing the ground, and, (e) Connecting means secured to the end of the handle opposite that of the enlarged portion and which means retains both the base member and the blades in such space relationship with each other that an operator can cause, alternately, the base member and the blades to contact the ground for comfortable and effective use simply by manually rotating the handle.
References Cited (Backward Citations)
SE26793C1
Cited
US1209072A
Cited
CH172632A
Cited
US2076120A
Cited
AT163110B
Cited
GB724232A
Cited
US3091197A
Cited
US3143984A
Cited
FR1370387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-04 | 1982-12-04 | 1983-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-04 | 1986-12-04 | 1987-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-04 | 1990-12-04 | 1991-06-05 | $7700.00 | Window Closed / Lapsed |