Patent US4081916A successfully refreshed from Google Patents.
US3676988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hay-making machine
Assignee: Bucher Guyer AG
•
Filing: 1970-01-30
•
Granted: 1972-07-18
•
Expires: 1990-01-30
Abstract
Abstract A hay-making machine comprises a rotary beating drum or drums provided with beater bars for subjecting the cut grass and stalk material to a beating, crushing and buckling action in order to accelerate the consecutive drying process. Rotary pick-up means are arranged ahead of the beating drum to deliver the cut stalk material into the range of the beating drum. A guide plate cooperates with the beating drum to define a conveying conduit for the stalk material. The end of the guide plate is provided with a baffle forming an impact surface against which the stalk material is thrown by the beater drum before it falls again on the ground. A further impact surface may be formed by said guide plate intermediate the length of the conveyer conduit. The pickup means may be a rotary member provided with prongs for picking up the cut stalk material from the ground, or it may be combined with a disc-type or gyratory mower arranged ahead of the beating drum for cutting and at the same time picking up the stalk material.
Inventors
- 👤 Hans Ulrich Hauser-Lienhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:22
CPC Classifications
A; A01; A01D; A01D82/00; A01D43/00; A01D43/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
A hay curing machine for cutting grass and stalk material and conditioning the material by beating it by impacting comprising a rotating mower rotating about a substantially vertically extending axis for cutting the grass and stalk material, a beating drum means for impacting the grass and stalk material positioned above and behind said mower and including at least one rotating beating drum arranged to rotate about a substantially horizontally extending axis, said beating drum means having beater bars for impacting and conveying the grass and stalk material, said mower and said beating drum means positioned relative to each other to direct the flow of grass and stalk material cut by said mower from said mower substantially radially toward said axis of said beating drum means, a wall member positioned above said beating drum means and spaced therefrom for forming a conveying conduit with said beating drum means, and first impacting surface means for receiving the grass and stalk material passing through said conveying conduit against said surface means for directing it toward said beating drum means.
Claim 2
Dependent Claim
176 words
A hay curing machine for cutting grass and stalk material and conditioning the material by beating it by impacting comprising a rotating mower rotating about a substantially vertically extending axis for cutting the grass and stalk material, a beating drum means for impacting the grass and stalk material positioned above and behind said mower and including at least one rotating beating drum arranged to rotate about a substantially horizontally extending axis, said beating drum means having beater bars for impacting and conveying the grass and stalk material, said mower and said beating drum means positioned relative to each other to direct the flow of grass and stalk material cut by said mower from said mower substantially radially toward said axis of said beating drum means, a wall member positioned above said beating drum means and spaced therefrom for forming a conveying conduit with said beating drum means, and first impacting surface means for receiving the grass and stalk material passing through said conveying conduit against said surface means for directing it toward said beating drum means.
Claim 3
Dependent Claim
42 words
The hay curing machine of claim 1, further characterized by a second impacting surface means to receive the grass and stalk material thereagainst from said beating drum means after its return toward said beating drum means from said first impacting surface means.
Claim 4
Dependent Claim
23 words
The hay curing machine of claim 1, further characterized by said first impacting surface means formed as a portion of said wall member.
Claim 5
Dependent Claim
63 words
The hay curing machine of claim 3, further characterized by said beating drum means including a second rotating beating drum rotating in the same direction as the first mentioned of said beating drums and arranged behind it in the direction of flow of the grass and stalk material and positioned to receive the grass and stalk material from said first impacting surface means.
Claim 6
Dependent Claim
34 words
The hay curing machine of claim 1, further characterized by said first impacting surface means including a second beating drum arranged above said first mentioned beating drum and rotating in an opposite direction therefrom.
Claim 7
Dependent Claim
45 words
The hay curing machine of claim 5, further characterized by said second beating drum arranged to rotate aBout a substantially horizontally extending axis situated rearwardly of said axis of said first mentioned beating drum with respect to the direction of advance movement of the machine.
References Cited (Backward Citations)
DE263432C
Cited
US2641097A
Cited
US2727347A
Cited
GB741828A
Cited
US2815636A
Cited
US2918774A
Cited
US2925703A
Cited
CH381006A
Cited
US3115737A
Cited
US3178876A
Cited
CH377138A
Cited
FR1412194A
Cited
US3284875A
Cited
US3437152A
Cited
US3474610A
Cited
US3513645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |