US3901003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary mower deck structure including a sound- and vibration-isolated blade housing section
Assignee: Deere and Co
•
Filing: 1973-12-10
•
Granted: 1975-08-26
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Expires: 1993-12-10
Abstract
Abstract A mower attachment for a tractor includes a deck structure which is formed in two separate sections, the first section being a blade housing section having a substantially horizontal top wall integral with a depending peripheral skirt and having a centrally located opening therein and the second section being a drive housing section disposed in blocking relationship to the opening located in the blade housing section and including a generally horizontal flange overlapping the top wall of the blade housing about the periphery of the opening. A plurality of fasteners extend through the flange and the top wall and include intermediate resilient rubber-like portions that are sandwiched between the flange and the top wall of the blade housing section for dampening vibration and noise. Every drive element that is mounted on the deck structure is mounted on the drive housing section along with the ground-engaging support means of the mower deck structure.
Inventors
- 👤 Leon Paul Erdman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:01
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/82; A01D34/826; A01D2101/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
In a rotary mower of the type including a mower blade housing having a top supporting at least one rotatably mounted blade and drive means for said blade and having lift and draft linkage means connected thereto and adapted to be connected to a mobile vehicle, the improvement comprising: said housing top including a detachable section to which said blade, drive means and lift and draft linkage means are solely connected; and said detachable section being interconnected with the remainder of the top solely through fastener means including noise and vibration dampener means interposed between said detachable section and the remainder of the top.
Claim 2
Dependent Claim
104 words
In a rotary mower of the type including a mower blade housing having a top supporting at least one rotatably mounted blade and drive means for said blade and having lift and draft linkage means connected thereto and adapted to be connected to a mobile vehicle, the improvement comprising: said housing top including a detachable section to which said blade, drive means and lift and draft linkage means are solely connected; and said detachable section being interconnected with the remainder of the top solely through fastener means including noise and vibration dampener means interposed between said detachable section and the remainder of the top.
Claim 3
Dependent Claim
64 words
The mower attachment defined in claim 4 wherein said draft and lift means includes first and second laterally spaced support members arched generally from front to rear over said mower blade housing and connected to the component supporting section through front and rear bracket means; and ground-engaging support means being mounted on forward and rearward end portions of said first and second support members.
Claim 4
Dependent Claim
41 words
The mower attachment defined in claim 2 wherein said draft and lift means also includes a rockshaft journaled in said rear bracket means; and a lift actuator connected between said rockshaft and said component supporting section of said mower blade housing.
Claim 5
Dependent Claim
111 words
A rotary mower attachment comprising: a mower blade housing having a top including a component supporting section interconnected with the remainder of the housing solely through fastener means including noise and vibration dampener means interposed between said component supporting section and the remainder of the blade housing; blade drive means being supported solely by said component supporting section; rotatably mounted blade means including at least one blade being rotatably mounted in said component supporting section and connected for being driven by said blade drive means; and draft and lift means being connected exclusively to said component supporting section of said blade housing and being adapted for connection to a mobile vehicle.
Claim 6
Dependent Claim
111 words
A rotary mower attachment comprising: a mower blade housing having a top including a component supporting section interconnected with the remainder of the housing solely through fastener means including noise and vibration dampener means interposed between said component supporting section and the remainder of the blade housing; blade drive means being supported solely by said component supporting section; rotatably mounted blade means including at least one blade being rotatably mounted in said component supporting section and connected for being driven by said blade drive means; and draft and lift means being connected exclusively to said component supporting section of said blade housing and being adapted for connection to a mobile vehicle.
Claim 7
Dependent Claim
78 words
The mower attachment defined in claim 4 wherein said component supporting section is oblong-diamond shaped in top plan view with the long dimension extending transversely to the normal direction of travel of the mower; said blade drive means further including a gearbox mounted adjacent a rearmost corner of said component supporting section; and said rotatably mounted blade means including three vertically disposed blade-carrying spindles respectively positioned at front and opposite transverse end corners of said component supporting section.
Claim 8
Dependent Claim
39 words
The mower attachment defined in claim 4 wherein said component supporting section includes a main dish-like support member having a horizontal flange forming the periphery thereof and overlapping a top surface portion of said remainder of the blade housing.
References Cited (Backward Citations)
US3056249A
Cited
US3483684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |