Patent US3987606A successfully refreshed from Google Patents.
US3987606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grass clipping collection apparatus
Assignee: Outboard Marine Corp
•
Filing: 1974-01-10
•
Granted: 1976-10-26
•
Expires: 1994-01-10
Abstract
Abstract Disclosed herein is a grass clipping apparatus for a rotary lawn mower, which apparatus comprises a cylindrical housing having an open lower end, means for supporting the housing with the axis of the housing extending generally vertically, a grass clipping passage or duct extending tangentially from the housing for delivering grass clippings from the lawn mower to the housing for initial centrifugal action or swirling movement of the clippings in the housing, which action or movement is effective to throw the clippings toward the outer wall of the housing, and a receptacle, preferably a disposable bag, located below the housing for receiving the clippings from the housing.
Inventors
- 👤 Lee D. Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:48
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/06; A01D43/063; A01D2101/00; A01D34/00; A01D34/01; A01D34/412; A01D34/63
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
158 words
A rotary lawn mower including a blade housing including a discharge outlet, a cylindrical housing having an upper end and a lower end, means supporting said cylindrical housing relative to said blade housing with the axis of said cylindrical housing extending generally vertically, a cover closing said upper end of said cylindrical housing and including therein an exiting air opening communicating with the atmosphere, a grass clipping passage communicating with and extending tangentially from said cylindrical housing and communicating with said discharge outlet for delivering clippings to said cylindrical housing from said blade housing for initial swirling movement in said cylindrical housing and for separation of the clippings from the air, a receptacle connected to said lower end of said cylindrical housing for receiving clippings therefrom, and a rotary cutter blade in said blade housing for grass cutting and for delivering a stream of air and grass clippings through said discharge outlet and into said grass clipping passage.
Claim 2
Dependent Claim
158 words
A rotary lawn mower including a blade housing including a discharge outlet, a cylindrical housing having an upper end and a lower end, means supporting said cylindrical housing relative to said blade housing with the axis of said cylindrical housing extending generally vertically, a cover closing said upper end of said cylindrical housing and including therein an exiting air opening communicating with the atmosphere, a grass clipping passage communicating with and extending tangentially from said cylindrical housing and communicating with said discharge outlet for delivering clippings to said cylindrical housing from said blade housing for initial swirling movement in said cylindrical housing and for separation of the clippings from the air, a receptacle connected to said lower end of said cylindrical housing for receiving clippings therefrom, and a rotary cutter blade in said blade housing for grass cutting and for delivering a stream of air and grass clippings through said discharge outlet and into said grass clipping passage.
Claim 3
Dependent Claim
23 words
A rotary lawn mower in accordance with claim 1 wherein said cover comprises an exiting air hood rotatable relative to said cylindrical housing.
Claim 4
Dependent Claim
23 words
A rotary lawn mower in accordance with claim 1 wherein said receptacle comprises a disposable bag removably attached to said lower housing end.
Claim 5
Dependent Claim
31 words
A rotary lawn mower in accordance with claim 1 and further including a blower located in said passage for assisting in delivering clippings from said blade housing to said cylindrical housing.
Claim 6
Dependent Claim
53 words
A rotary lawn mower in accordance with claim 1 wherein said passage includes a flexible portion and an inlet portion connected to said flexible portion and adapted for releaseable connection with said discharge outlet and adapted, when disconnected from said discharge outlet, to be employed independently of said blade housing for vacuuming debris.
Claim 7
Dependent Claim
28 words
A rotary lawn mower in accordance with claim 1 and further including means for supporting said cylindrical housing for travel over the ground independently of said blade housing.
Claim 8
Dependent Claim
24 words
A rotary lawn mower in accordance with claim 1 wherein said means supporting said cylindrical housing comprises a handle extending from said blade housing.
Claim 9
Dependent Claim
30 words
A rotary lawn mower in accordance with claim 1 and further including means for supporting the weight of said receptacle and of said cylindrical housing independently of said blade housing.
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) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |