US3706190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary power mower having an improved deflector for the discharge outlet
Assignee: G W Davis Corp
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Filing: 1971-10-20
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Granted: 1972-12-19
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Expires: 1991-10-20
Abstract
Abstract The deck member of a rotary power mower has a grass discharge outlet which is normally covered by a scoop-like deflector member for directing grass clippings, stones and other solid objects back onto the ground outboard of the wheels supporting the deck member. The upper portion of the deflector member is pivotally connected to the deck member adjacent the top of the discharge outlet, and the deflector member is movable from its lower operative position covering the outlet to an upper retracted or inoperative position against the bias of torsion coil springs to provide for attaching a grass catcher bag adapter directly to the deck member. The deflector member includes front and rear curved walls which are rigidly connected by an outer wall sloping downwardly and outwardly from the top of the discharge outlet, and the lower edges of the walls are substantially level with the lower edge of the deck member.
Inventors
- 👤 Jack D Taub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:51
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/71; A01D2101/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
150 words
In a rotary power mower including a deck member defining a downwardly facing chamber having a discharge outlet, a vertical rotary shaft projecting through said deck member, a cutting blade disposed within said chamber and mounted on the lower end portion of said shaft, power operated means for driving said shaft, and wheel means supporting said deck member for movement across the ground, the improvement comprising a deflector member, means mounted on said deck member and supporting said deflector member for pivotal movement between an inoperative position projecting outwardly from said outlet and an operative position covering said outlet, means for urging said deflector member toward said operative position, and said deflector member includes an outer wall sloping downwardly and outwardly from said deck member and over said outlet when said deflector member is in said operative position to deflect propelled grass clippings and foreign objects downwardly onto the ground.
Claim 2
Dependent Claim
150 words
In a rotary power mower including a deck member defining a downwardly facing chamber having a discharge outlet, a vertical rotary shaft projecting through said deck member, a cutting blade disposed within said chamber and mounted on the lower end portion of said shaft, power operated means for driving said shaft, and wheel means supporting said deck member for movement across the ground, the improvement comprising a deflector member, means mounted on said deck member and supporting said deflector member for pivotal movement between an inoperative position projecting outwardly from said outlet and an operative position covering said outlet, means for urging said deflector member toward said operative position, and said deflector member includes an outer wall sloping downwardly and outwardly from said deck member and over said outlet when said deflector member is in said operative position to deflect propelled grass clippings and foreign objects downwardly onto the ground.
Claim 3
Dependent Claim
29 words
A power mower as defined in claim 1 wherein said means for urging said deflector member include at least one spring connecting said deflector member to said deck member.
Claim 4
Dependent Claim
25 words
A power mower as defined in claim 2 wherein said spring member comprises a torsion coil spring surrounding the pivot axis of said deflector member.
Claim 5
Dependent Claim
36 words
A power mower as defined in claim 1 wherein said outer wall of said deflector member also extends transversely relative to the normal forward direction of movement of said mower as defined by said wheel means.
Claim 6
Dependent Claim
31 words
A power mower as defined in claim 1 wherein said outer wall of said deflector member has a lower edge disposed substantially level with the lower edge of said deck member.
Claim 7
Dependent Claim
52 words
A power mower as defined in claim 1 including an adapter for coupling a grass catcher bag to said outlet, means for mounting said adapter directly on said deck member adjacent said outlet, and said deflector member being movable to said inoperative position before said adapter is mounted on said deck member.
Claim 8
Dependent Claim
54 words
A power mower as defined in claim 6 wherein said mounting means include a fastener projecting upwardly from said deck member adjacent said outlet, means on said adapter for receiving said fastener, and said deflector member is positioned to provide access to said fastener when said deflector member is in either of said positions.
Claim 9
Dependent Claim
38 words
A power mower as defined in claim 1 wherein said deflector member includes a front wall and a rear wall rigidly connected by said outer wall, and each of said front and rear walls has a curved configuration.
Claim 10
Dependent Claim
181 words
In a rotary power mower including a deck member defining a downwardly facing chamber having a discharge outlet, a vertical rotary shaft projecting through said deck member, a cutting blade disposed within said chamber and mounted on the lower end portion of said shaft, power operated means for driving said shaft, and wheel means supporting said deck member for movement across the ground, the improvement comprising a deflector member having a scoop-like configuration, means mounted on the top portion of said deck member adjacent said outlet and supporting said deflector member for pivotal movement between an upper inoperative position projecting above said outlet and a lower operative position covering said outlet, spring means for urging said deflector member toward said lower operative position, said deflector member having a wall sloping downwardly and outwardly from said deck member and over said outlet when said deflector member is in said lower operative position to deflect propelled grass clippings and foreign objects downwardly onto the ground, and said wall has a lower edge disposed substantially level with the lower edge of said deck member.
Claim 11
Dependent Claim
181 words
In a rotary power mower including a deck member defining a downwardly facing chamber having a discharge outlet, a vertical rotary shaft projecting through said deck member, a cutting blade disposed within said chamber and mounted on the lower end portion of said shaft, power operated means for driving said shaft, and wheel means supporting said deck member for movement across the ground, the improvement comprising a deflector member having a scoop-like configuration, means mounted on the top portion of said deck member adjacent said outlet and supporting said deflector member for pivotal movement between an upper inoperative position projecting above said outlet and a lower operative position covering said outlet, spring means for urging said deflector member toward said lower operative position, said deflector member having a wall sloping downwardly and outwardly from said deck member and over said outlet when said deflector member is in said lower operative position to deflect propelled grass clippings and foreign objects downwardly onto the ground, and said wall has a lower edge disposed substantially level with the lower edge of said deck member.
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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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |