Patent US4021995A successfully refreshed from Google Patents.
US4021995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crop conditioning rotor
Assignee: Hay and Forage Industries
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Filing: 1975-11-10
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Granted: 1977-05-10
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Expires: 1995-11-10
Abstract
Abstract Diametrically opposed, outwardly projecting elements of a rotor have rubber pads clamped between the same and the hub of the rotor by one or more fasteners common to both elements. The fasteners can shift axially through the hub in response to deflection of one of the elements counter to the direction of rotation of the rotor so that such deflection causes compression not only of the pad associated with the element encountering the deflecting force, but the pad of the opposite element as well.
Inventors
- 👤 Amos Grover Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:35
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/52; Y; Y10; Y10S; Y10S56/00; Y10S56/01
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
112 words
A material handling rotor, including: a hub; an outwardly extending rigid element mounted on said hub for rocking movement relative to the latter; a shock-absorber on said hub spaced from said element; and structure operably interconnecting said shock absorber and said element for loading the shock absorber uniformly in response to said rocking of said element, said structure including an elongated member extending through said hub and axially shiftable within the latter, one end of said member being coupled directly with said rigid element and the opposite end of the member being coupled with said shock absorber whereby movement of said element relative to said hub is transmitted to said shock absorber.
Claim 2
Dependent Claim
112 words
A material handling rotor, including: a hub; an outwardly extending rigid element mounted on said hub for rocking movement relative to the latter; a shock-absorber on said hub spaced from said element; and structure operably interconnecting said shock absorber and said element for loading the shock absorber uniformly in response to said rocking of said element, said structure including an elongated member extending through said hub and axially shiftable within the latter, one end of said member being coupled directly with said rigid element and the opposite end of the member being coupled with said shock absorber whereby movement of said element relative to said hub is transmitted to said shock absorber.
Claim 3
Dependent Claim
37 words
A material handling rotor as claimed in claim 1, wherein said hub is provided with an outer surface and said element is shiftable outwardly from said surface, said shock-absorber yieldably biasing the element against said outward movement.
Claim 4
Dependent Claim
22 words
A material handling rotor as claimed in claim 2, wherein said shock absorber includes a pad of resilient material on said surface.
Claim 5
Dependent Claim
22 words
A material handling rotor as claimed in claim 3, wherein said pad is positioned on said hub diametrically opposed to said element.
Claim 6
Dependent Claim
42 words
A material handling rotor as claimed in claim 1, wherein said rotor further includes a second outwardly extending rigid element mounted on said hub for rocking movement relative to the latter, said shock absorber being between said second element and the hub.
Claim 7
Dependent Claim
59 words
A material handling rotor as claimed in claim 5, wherein said rotor additionally includes a second shock absorber on said hub, said second shock absorber being between said first-mentioned element and the hub and being operably interconnected with said second element by said member for loading the second shock absorber uniformly in response to rocking of said second element.
Claim 8
Dependent Claim
16 words
A material handling rotor as claimed in claim 6, wherein said shock absorbers comprise resilient pads.
Claim 9
Dependent Claim
18 words
A material handling rotor as claimed in claim 7, wherein said elements are diametrically opposed on said hub.
Claim 10
Dependent Claim
45 words
A material handling rotor as claimed in claim 8, wherein said elements are shiftable outwardly from said surface, said second shock absorber yieldably restraining said second element against said outward movement, and said first shock absorber yieldably restraining said first-mentioned element against said outward movement.
Claim 11
Dependent Claim
37 words
A material handling rotor as claimed in claim 9, wherein said member has shoulder means at its opposite ends limiting outward movement of the elements but permitting inward movement thereof against the action of said shock absorbers.
Claim 12
Dependent Claim
36 words
A material handling rotor as claimed in claim 10, wherein at least one of said shoulder means is adjustable toward and away from the hub for imparting a preselected degree of compression to said shock absorbers.
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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |