Patent US3556404A successfully refreshed from Google Patents.
US3556404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler boom resilient pivot
Assignee: PRIOR PRODUCTS Inc
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Filing: 1969-06-11
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Granted: 1971-01-19
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Expires: 1989-06-11
Abstract
Abstract A mobile spray machine including a rectangular block pivoted to the machine on a vertical axis for pivotally supporting the spray boom and a pair of transversely extending leaf springs mounted on the machine transversely inwardly of the block so that their outer ends engage the sides of the block and bias the block and the boom mounted thereon in a direction transverse of the machine, while yielding sufficiently to permit the boom to be deflected by obstructions in its path without damage to the boom and to permit the boom to be swung to its longitudinal inoperative position for travel.
Inventors
- 👤 Harold L Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:29
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/005; A01M7/0071; A01M7/0075
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
101 words
In a mobile spraying machine, wheel supported framing, a block pivoted to said framing on a vertical axis, a spray boom supported from said block for pivoting therewith between positions transverse and longitudinal of said framing, said block having a pair of parallel flattened vertical surfaces, and a pair of leaf springs mounted on said framing on opposite sides of said block and braced toward each other in resiliently abutting engagement respectively with said vertical side surfaces of said block when said boom is in its transverse position whereby to resiliently oppose swinging movements of said boom from its transverse position.
Claim 2
Dependent Claim
101 words
In a mobile spraying machine, wheel supported framing, a block pivoted to said framing on a vertical axis, a spray boom supported from said block for pivoting therewith between positions transverse and longitudinal of said framing, said block having a pair of parallel flattened vertical surfaces, and a pair of leaf springs mounted on said framing on opposite sides of said block and braced toward each other in resiliently abutting engagement respectively with said vertical side surfaces of said block when said boom is in its transverse position whereby to resiliently oppose swinging movements of said boom from its transverse position.
Claim 3
Dependent Claim
32 words
In a machine according to claim 1, said flattened surfaces being substantially elongated whereby to provide an elongated moment arm to yieldingly remit swinging movements of said boom from its extended position.
Claim 4
Dependent Claim
27 words
In a machine according to claim 2, said block being of substantially rectangular shape in plan, having vertical end surfaces substantially shorter than said elongated vertical surface.
Claim 5
Dependent Claim
24 words
In a machine according to claim 3, said elongated surfaces being parallel to said boom, and said leaf springs extending transversely of the machine.
Claim 6
Dependent Claim
49 words
In a machine according to claim 4, said block being located adjacent a near corner of said framing and said boom being swingable to a forwardly extending longitudinal position, said framing being provided with a lateral bracket forward of said block for supporting said boom in its longitudinal position.
Claim 7
Dependent Claim
31 words
In a machine according to claim 4, means pivotally connecting said boom to said block on an axis transverse of said boom, whereby to permit selective upward swinging of said boom.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |