US4134249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mulching type of lawn mower
Assignee: Jacobsen Manufacturing Co
•
Filing: 1977-02-25
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Granted: 1979-01-16
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Expires: 1997-02-25
Abstract
Abstract A mulching type of lawn mower including a mower housing and a cutter blade therein and with vertically adjustable wheels on the housing. A comb member with a drag flap or panel is attached to the housing at the rear thereof and extends downwardly toward the ground in two sections, with the forward one of the two sections being shorter than the rearward one, and with the two sections or panels terminating in lower edges which brush the cut grass clippings and thereby comb them into the turf.
Inventors
- 👤 Charles A. Wuerker
- 👤 Gary C. Steingraber
- 👤 Neill C. Woelffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:51
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/001; A01D34/005; A01D2101/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
230 words
A mulching type of lawn mower comprising a mower housing having an endless skirt extending therearound and toward the ground and terminating in a lower endless edge on substantially a horizontal plane, wheels on said housing for supporting said housing in a fore-and-aft axis of mower movement, a grass cutter rotatably mounted on said housing and disposed within the confines of said endless skirt and at a level above that of said lower edge for cutting the grass clippings in a swath of a width defined by said cutter in the fore-and-aft movement of said housing, said cutter having pitched portions for blowing said clippings downwardly and into the turf, a prime mover on said housing for rotating said cutter and to thereby cut the grass located within the confines of said skirt, and a panel rigidly affixed to said housing and extending thereacross and in an upright plane for the width of said swath in the direction transverse to said fore-and-aft axis and at the rear of said housing relative to said fore-and-aft axis, and said panel extending downwardly from said housing and terminating in a lower edge at an elevation lower than and rearwardly of said lower endless edge of said housing and is spaced above the ground for brushing said grass clippings and thereby brush them into the lawn in the forward cutting movement of the mower.
Claim 2
Dependent Claim
230 words
A mulching type of lawn mower comprising a mower housing having an endless skirt extending therearound and toward the ground and terminating in a lower endless edge on substantially a horizontal plane, wheels on said housing for supporting said housing in a fore-and-aft axis of mower movement, a grass cutter rotatably mounted on said housing and disposed within the confines of said endless skirt and at a level above that of said lower edge for cutting the grass clippings in a swath of a width defined by said cutter in the fore-and-aft movement of said housing, said cutter having pitched portions for blowing said clippings downwardly and into the turf, a prime mover on said housing for rotating said cutter and to thereby cut the grass located within the confines of said skirt, and a panel rigidly affixed to said housing and extending thereacross and in an upright plane for the width of said swath in the direction transverse to said fore-and-aft axis and at the rear of said housing relative to said fore-and-aft axis, and said panel extending downwardly from said housing and terminating in a lower edge at an elevation lower than and rearwardly of said lower endless edge of said housing and is spaced above the ground for brushing said grass clippings and thereby brush them into the lawn in the forward cutting movement of the mower.
Claim 3
Dependent Claim
42 words
The mulching type lawn mower as claimed in claim 1, wherein said panel is of a flexible material for displacing said lower edge thereof relative to said fore-and-aft axis in response to any resistance of the ground and turf on said panel.
Claim 4
Dependent Claim
35 words
The mulching type lawn mower as claimed in claim 2, including wheel adjusting mountings interposed between said housing and said wheels for vertically adjustable positioning of said housing and said panel relative to the ground.
Claim 5
Dependent Claim
33 words
The mulching type lawn mower as claimed in claim 1, wherein said panel lower edge is of an irregular shape and presents a wavy edge for combing the grass clippings into the lawn.
Claim 6
Dependent Claim
81 words
The mulching type lawn mower as claimed in claim 1, including an additional panel affixed to said housing and extending thereacross at the rear of said housing and rearwardly of the first-mentioned said panel and extending downwardly and terminating in a lower edge at an elevation lower than the elevation of said lower edge of the first-mentioned said panel, for engaging the grass clippings after the first-mentioned panel engages the grass clippings in the forward mowing movement of the lawn mower.
Claim 7
Dependent Claim
26 words
The mulching type lawn mower as claimed in claim 5, wherein said first-mentioned panel is less flexible relative to the flexibility of the additional said panel.
Claim 8
Dependent Claim
123 words
The mulching type lawn mower as claimed in claim 5, including wheel adjusting mountings interposed between said housing and said wheels for vertically adjustable positioning of said housing and said panels relative to the ground, said mountings and the disposition of the respective said lower edges of said panels being arranged relative to the upper and lower limits of adjustment of said wheels such that said lower edge of the first-mentioned said panel is spaced above the elevation of the ground when said wheels are in the maximum position of having said housing lowered, and said lower edge of the additional said panel is at the elevation of the ground when said wheels are in the maximum position of having said housing raised.
Claim 9
Dependent Claim
55 words
The mulching type mower as claimed in claim 1, wherein said grass cutter comprises a plurality of cutting blades with some thereof disposed at an elevation for cutting the grass from the turf and the other thereof disposed radially inwardly from said some blades for re-cutting the grass clippings cut off by said some blades.
Claim 10
Dependent Claim
35 words
The mulching type mower as claimed in claim 1, wherein said cutter comprises two cutting bars angularly disposed to each other and of different lengths and having pitched portions for creating a downdraft of clippings.
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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) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |