Patent US3640348A successfully refreshed from Google Patents.
US3640348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
S-shaped standard
Assignee: Kewanee Machinery and Conveyor Co
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Filing: 1970-02-02
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Granted: 1972-02-08
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Expires: 1990-02-02
Abstract
Abstract The use of a resilient standard, or bearing, to support a disc gang from the main frame, with the standard being made of a plurality of curved portions or convolutions, preferably of a reversed ''''S'''' shape.
Inventors
- 👤 George E Womble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:03
CPC Classifications
A; A01; A01B; A01B61/00; A01B61/04; A01B21/00; A01B21/08; Y; Y10; Y10S; Y10S111/00; Y10S111/926
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
In discing equipment comprising a main frame having a laterally directed, rigid supporting beam to which the shaft of a gang of discs positioned below the main frame is connected, a pair of spaced S-shaped standards each comprising a spring tempered member having an upper convolution integrally united to an oppositely opening lower convolution, the upper convolution having an upper end portion rigidly connected to the beam by front and rear connection members, the lower convolution having a lower end portion rigidly connected to said gang disc shaft, said rigid connection of the lower end portion of the lower convolution being below and rearwardly of the supporting beam considering the direction in which the discing equipment travels, the shaft and discs pivoting upwardly and rearwardly about said rigid connection of the standard to the supporting beam as a center of rotation when a disc or discs hit an undiscable obstruction so as to avoid interference between the discs and the rigid supporting beam, and the lower convolution opening rearwardly in a direction opposite to the direction of travel of the discing equipment to avoid collection of trash during use of the equipment.
Claim 2
Dependent Claim
192 words
In discing equipment comprising a main frame having a laterally directed, rigid supporting beam to which the shaft of a gang of discs positioned below the main frame is connected, a pair of spaced S-shaped standards each comprising a spring tempered member having an upper convolution integrally united to an oppositely opening lower convolution, the upper convolution having an upper end portion rigidly connected to the beam by front and rear connection members, the lower convolution having a lower end portion rigidly connected to said gang disc shaft, said rigid connection of the lower end portion of the lower convolution being below and rearwardly of the supporting beam considering the direction in which the discing equipment travels, the shaft and discs pivoting upwardly and rearwardly about said rigid connection of the standard to the supporting beam as a center of rotation when a disc or discs hit an undiscable obstruction so as to avoid interference between the discs and the rigid supporting beam, and the lower convolution opening rearwardly in a direction opposite to the direction of travel of the discing equipment to avoid collection of trash during use of the equipment.
Claim 3
Dependent Claim
45 words
In discing equipment, the improvement according to claim 1 wherein at least the rear connection member of the connection members which connect the upper end portion of the S-shaped standards to the beam comprises a U-bolt, the bight of which straddles said upper end portion.
Claim 4
Dependent Claim
37 words
In discing equipment, the improvement according to claim 2 wherein the lower end portion of the lower convolution of the S-shaped standards is rigidly connected to the gang disc shaft by a U-bolt which straddles said shaft.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |