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US3791218A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for removing samples of particulate materials from an endless belt conveyor

Assignee: D&P Minerals Inc
•
Filing: 1972-01-05
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Granted: 1974-02-12
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Expires: 1992-01-05
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Abstract

Abstract Representative quantities of ores and other particulate materials are removed, when desired, from the upper flight of a substantially horizontally disposed, transversely concave, endless belt conveyor by a relatively narrow elongate scoop which is pivotally suspended from above with its lower end normally extending in an upstream direction and into close proximity, or contact, with the surface of the upper flight of the endless belt conveyor. After the desired sample has been received through an inlet port in the elongate scoop, the normally lower end of the latter is raised and the particulate materials are permitted to flow by gravity through the remainder of the elongate scoop and discharged through an outlet port in the normally upper end and fed onto a cross-conveyor which transfers the sample to wherever desired. The raising of the free end of the pivotally mounted elongate scoop causes it to move through an arc which extends longitudinally of the endless belt conveyor; and additional pivotal means are provided for moving the lower end of the elongate scoop through an arc which extends transversely with respect to the endless belt conveyor. Through this last-named means the lower end of the elongate scoop may be so adjusted that the inlet port thereof receives samples of particulate material from different positions transversely of the moving stream.

Inventors

  • 👤 F Pennington

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 12:49
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; B; B65; B65G; B65G47/00; B65G47/74; G01N2001/2007; G01N2001/2028

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 215 words
Apparatus for removing samples of particulate material directly from a substantially horizontally disposed and longitudinally moving endless belt conveyor comprising, in combination a frame a relatively narrow and normally vertically depending elongate scoop means mounted on said frame above said endless belt conveyor add pivotally mounted for swinging movement in an arc which extends longitudinally of, and in an upstream direction with respect to, said endless belt conveyor the lower end of said elongate scoop when in its lowermost position being proximate the upper surface of said endless belt conveyor and provided with an inlet port which faces upstream with respect thereto the upper end of said elongate scoop being provided with an outlet port for discharging particulate material from said scoop when the lower end thereof is in an elevated upstream position and means for receiving the particulate material as it is discharged by gravity from the outlet port of said elongate scoop when it is in the immediately aforementioned position said vertically depending elongate scoop being also pivotally mounted for swinging movement in an arc which extends transversely with respect to said endless belt conveyor whereby the position of said relatively narrow elongate scoop may be adjusted by moving the frame longitudinally with respect to the longitudinal center-line of said endless belt conveyor.
Claim 2
Dependent Claim 215 words
Apparatus for removing samples of particulate material directly from a substantially horizontally disposed and longitudinally moving endless belt conveyor comprising, in combination a frame a relatively narrow and normally vertically depending elongate scoop means mounted on said frame above said endless belt conveyor add pivotally mounted for swinging movement in an arc which extends longitudinally of, and in an upstream direction with respect to, said endless belt conveyor the lower end of said elongate scoop when in its lowermost position being proximate the upper surface of said endless belt conveyor and provided with an inlet port which faces upstream with respect thereto the upper end of said elongate scoop being provided with an outlet port for discharging particulate material from said scoop when the lower end thereof is in an elevated upstream position and means for receiving the particulate material as it is discharged by gravity from the outlet port of said elongate scoop when it is in the immediately aforementioned position said vertically depending elongate scoop being also pivotally mounted for swinging movement in an arc which extends transversely with respect to said endless belt conveyor whereby the position of said relatively narrow elongate scoop may be adjusted by moving the frame longitudinally with respect to the longitudinal center-line of said endless belt conveyor.
Claim 3
Dependent Claim 47 words
The apparatus of claim 1 wherein said endless belt conveyor is transversely concave, and the radius of the arc of movement of said elongate scoop transversely of said endless belt conveyor and the radius of the arc of the corresponding movement of said elongate scoop are similar.
Claim 4
Dependent Claim 33 words
The apparatus of claim 1, together with a closure for the inlet port at the lower end of said elongate scoop, said closure being adapted for movement into and out of operative position.
Claim 5
Dependent Claim 105 words
The apparatus of claim 1, wherein the means for maintaining the upper end of said elongate scoop in position above said endless belt conveyor comprises a substantially horizontal shaft disposed in substantial parallelism with respect to the longitudinal center-line of said endless belt conveyor said shaft being adapted for at least partial rotation a downwardly depending member secured to said shaft the lower end of said downwardly depending member being pivotally connected to the upper portion of said elongate scoop whereby the partial rotation of said shaft will move the lower end of said elongate scoop into adjusted positions transversely of said endless belt conveyor.
Claim 6
Dependent Claim 44 words
The apparatus of claim 1, together with power-actuated means for moving said elongate scoop along the arc which extends longitudinally of said endless belt conveyor and power-actuated means for moving said elongate scoop along the arc which extends transversely of said endless belt conveyor.
Claim 7
Dependent Claim 31 words
The apparatus of claim 5, together with power-actuated means for moving the closure for the inlet port at the lower end of said elongate scoop into and out of operative position.

References Cited (Backward Citations)

CA622223A Cited
US2977800A Cited
US3181369A Cited
US3545280A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-11 1977-08-13 1978-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-11 1981-08-13 1982-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-11 1985-08-13 1986-02-12 $7700.00 Window Closed / Lapsed

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