US3794386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain flow controller
Assignee: LML ENG AND Mfg CORP
•
Filing: 1973-04-11
•
Granted: 1974-02-26
•
Expires: 1993-04-11
Abstract
Abstract Disclosed is a flow controlling device or nozzle which is adapted for attachment to a discharge spout delivering a turbulent fluid flow, such as the grain flow from a grain transport auger. The device has a barrel portion with extending, staggered stave portions which smooth out the flow of grain and which prevent clogging of the device when large quantities of grain are introduced into it.
Inventors
- 👤 T Hite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:46
CPC Classifications
A; A01; A01D; A01D87/00; A01D87/0046; B; B65; B65G; B65G69/00; B65G69/04; B65G69/0441
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
117 words
A flow controlling device utilized in filling grain-storing bins or the like and adapted to receive a turbulent fluid flow at its inlet end and to discharge a uniform non-turbulent flow of fluid at its outlet end, said device comprising a generally cylindrical barrel portion, one end of said barrel portion being adapted for attachment to a fluid input conduit, a series of elongated staves extending from the other end of said barrel portion, alternate ones of said staves being inclined inwardly toward the longitudinal axis of the barrel portion so that a line joiniNg the tips of said inclined staves defines an opening of less area that a line joining the tips of the remaining staves.
Claim 2
Dependent Claim
117 words
A flow controlling device utilized in filling grain-storing bins or the like and adapted to receive a turbulent fluid flow at its inlet end and to discharge a uniform non-turbulent flow of fluid at its outlet end, said device comprising a generally cylindrical barrel portion, one end of said barrel portion being adapted for attachment to a fluid input conduit, a series of elongated staves extending from the other end of said barrel portion, alternate ones of said staves being inclined inwardly toward the longitudinal axis of the barrel portion so that a line joiniNg the tips of said inclined staves defines an opening of less area that a line joining the tips of the remaining staves.
Claim 3
Dependent Claim
62 words
A flow controlling device as claimed in claim 1 in which all of said staves are inclined inwardly with said alternate ones of said staves being inclined inwardly at a sharper angle than the remaining staves, so that a line joining the tips of said remaining staves defines an opening of less area than the cross-sectional area enclosed by said barrel portion.
Claim 4
Dependent Claim
34 words
A flow controlling device as claimed in claim 1 in which said staves are tapered toward their free ends, the wide ends of the staves overlapping somewhat at their juncture with said barrel portion.
Claim 5
Dependent Claim
37 words
A flow controlling device as claimed in claim 1 which includes flow diverting tabs extending inwardly toward the central longitudinal axis of said barrel portion and disposed adjacent the junction of said staves and said barrel portion.
Claim 6
Dependent Claim
38 words
A flow controlling device as claimed in claim 4 in which said flow diverting tabs extend inwardly and toward the tips of said staves at an angle of appropriately 45* with the interior surface of said barrel portion.
Claim 7
Dependent Claim
74 words
A flow controlling device as claimed in claim 2 in which the ratio of the diameter of said barrel portion to the diameter of said opening defined by the tips of said remaining staves is approximately 3 to 2, and the ratio of the diameter of said opening defined by the tips of said remaining staves to the diameter of the opening defined by said alternate stave tips is also approximately 3 to 2.
References Cited (Backward Citations)
US3390918A
Cited
US3618798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |