US3848401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grass cutter
Assignee: Individual
•
Filing: 1973-09-28
•
Granted: 1974-11-19
•
Expires: 1993-09-28
Abstract
Abstract In a cutter assembly comprising a holder bar and a cutter bar, both bars having transversely extending teeth, the cutter bar being reciprocatably movable along a side edge of the holder bar, the improvement in cutting ability accrues from using a flexible flat-sided strip as the cutter bar and causing the same to be bent to a flat sinus configuration between the teeth of the holder bar.
Inventors
- 👤 P Hast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:37
CPC Classifications
A; A01; A01G; A01G3/00; A01G3/04; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/13; A01G2003/0461
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
In a cutter assembly for cutting grass, hedges and similar vegetation, in which said assembly comprises a holder bar and a cutter bar, both bars having transversely extending teeth, the cutter bar being reciprocatingly movable along a side edge of the holder bar thus causing a cutting action between the teeth, the improved construction according to which the cutter bar is formed as a flat-sided flexible strip and the teeth on the holder bar are disposed alternatingly on both flat sides of the cutter bar, the spacing between the teeth on the holder bar, measured perpendicularly to the plane of the cutter bar, being less than the thickness of the cutter bar, the cutter bar thus being pressed between the teeth on the holder bar and bent to a curved shaped.
Claim 2
Dependent Claim
131 words
In a cutter assembly for cutting grass, hedges and similar vegetation, in which said assembly comprises a holder bar and a cutter bar, both bars having transversely extending teeth, the cutter bar being reciprocatingly movable along a side edge of the holder bar thus causing a cutting action between the teeth, the improved construction according to which the cutter bar is formed as a flat-sided flexible strip and the teeth on the holder bar are disposed alternatingly on both flat sides of the cutter bar, the spacing between the teeth on the holder bar, measured perpendicularly to the plane of the cutter bar, being less than the thickness of the cutter bar, the cutter bar thus being pressed between the teeth on the holder bar and bent to a curved shaped.
Claim 3
Dependent Claim
40 words
The improved cutter assembly defined in claim 1, in which the teeth of the cutter bar have a forwardly increasing width, the fore edge being substantially straight and orientated in the direction of the reciprocating motion of the cutter bar.
Claim 4
Dependent Claim
32 words
The improved assembly defined in claim 1, according to which the fore ends of the teeth on the holder bar lie behind the fore ends of the teeth on the cutter bar.
Claim 5
Dependent Claim
23 words
The improved cutter assembly defined in claim 1, according to which the teetH on the holder bar are rod-shaped and have cutting edges.
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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |