US4782650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mowing apparatus
Assignee: WALKER MANUFACTURING A CORP OF CO
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Filing: 1987-08-31
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Granted: 1988-11-08
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Expires: 2007-08-31
Abstract
Abstract A vehicle is controllably powered to be steerably moved over an area. Mounted on the front of the vehicle is a cutter assembly. Also mounted on the vehicle is a hopper. Mowed cuttings are delivered by a conduit from the cutter to the hopper. An outlet mounted within the hopper is coupled in use to the conduit for distributing received cuttings on into the interior of the hopper. A driver mounted with respect to the hopper moves that outlet in a systematic pattern to vary the direction of distribution of the received cuttings. An elongated paddle is mounted to swing reciprocally in correspondence with movement of the outlet. Upon the occurrance of impedence against the swinging of that paddle, by cuttings collected within the hopper, a switch is actuated to energize an indicator.
Inventors
- 👤 Dean M. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:56
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: 6
Claim 1
Independent Claim
200 words
A mower comprising: a vehicle controllably powered to be steerably moved over an area to be mowed; a cutter assembly mounted on said vehicle for mowing; a closed hopper mounted on said vehicle; means including a conduit for delivering cuttings from said cutter assembly to said hopper; an outlet mounted within the upper interior of said hopper for distributing cuttings, received from said conduit, on into the interior of said hopper; driving means mounted with respect to said hopper for continuously moving said outlet reciprocally in order to vary the direction of distribution of said received clippings in a repetitive pattern over a portion of the width of said interior; an elongated paddle; means for coupling one end of said paddle to said outlet in a position projecting outwardly therefrom whereby nominally to swing reciprocally over said portion of the width in correspondence with reciprocal movement of said outlet; means responsive to a signal for providing an indication; a switch actuatable to effectuate said signal; and means, included within said coupling means, for actuating said switch upon the occurrence of impedance against swinging of said paddle, during said movement of said outlet, by said cuttings as collected within said hopper.
Claim 2
Dependent Claim
200 words
A mower comprising: a vehicle controllably powered to be steerably moved over an area to be mowed; a cutter assembly mounted on said vehicle for mowing; a closed hopper mounted on said vehicle; means including a conduit for delivering cuttings from said cutter assembly to said hopper; an outlet mounted within the upper interior of said hopper for distributing cuttings, received from said conduit, on into the interior of said hopper; driving means mounted with respect to said hopper for continuously moving said outlet reciprocally in order to vary the direction of distribution of said received clippings in a repetitive pattern over a portion of the width of said interior; an elongated paddle; means for coupling one end of said paddle to said outlet in a position projecting outwardly therefrom whereby nominally to swing reciprocally over said portion of the width in correspondence with reciprocal movement of said outlet; means responsive to a signal for providing an indication; a switch actuatable to effectuate said signal; and means, included within said coupling means, for actuating said switch upon the occurrence of impedance against swinging of said paddle, during said movement of said outlet, by said cuttings as collected within said hopper.
Claim 3
Dependent Claim
24 words
A mower as defined in claim 1 in which said actuating means responds to said occurrence in either direction of movement of said outlet.
Claim 4
Dependent Claim
55 words
A mower as defined in claim 1 in which said coupling means includes a rotatable shaft to one portion of which said one end is secured, and in which a switch operator is secured to another portion of said shaft with said switch being actuated by said operator in responce to rotation of said shaft.
Claim 5
Dependent Claim
24 words
A mower as defined in claim 1 which includes means for biasing said paddle normally to a position in which said switch is deactuated.
Claim 6
Dependent Claim
61 words
A mower as defined in claim 1 in which said driving means includes a motive power source coupled to said outlet by a resilient linkage, and in which the degree of resiliency in said linkage is sufficient to enable continued operation of said motive power source when movement of said outlet and said paddle is blocked by accumulation of said cuttings.
References Cited (Backward Citations)
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Cited
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Cited
US4078365A
Cited
US4589249A
Cited
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Cited
US4635047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-08 | 1992-05-09 | 1992-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-08 | 1996-05-09 | 1996-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-08 | 2000-05-09 | 2000-11-08 | $7700.00 | Window Closed / Lapsed |