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US3815728A Expired / Lapsed US ⏱️ 0.0 years remaining

Belt cleaning system

Assignee: Borg Warner Corp
•
Filing: 1973-05-04
•
Granted: 1974-06-11
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Expires: 1993-05-04
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Abstract

Abstract Means comprising floating and idler rolls are arranged with respect to the return flight of a conveyor belt to clean or remove material therefrom.

Inventors

  • 👤 W Vaughan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 06:41
CPC Classifications
B; B65; B65G; B65G45/00; B65G45/10; B65G45/22

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 167 words
In apparatus for removing material from a material conveyor belt having both a carrying and a return flight with inside and outside surfaces, and a driven head pulley, the under surfaces engaging the driven head pulley, the improvement comprising: a floating roll means engaging the inside surface of the return flight, means resiliently urging said floating roll means into engagement with said return flight, a fixed axis idler roll means directly opposite said floating roll means and engaging the outside surface of the return flight, both said roll means being arranged for rotation freely about their axes, means to supply cleaning fluid to said belt in advance of said roll means, said roll means engaging and removing material adhering to the outside surface of the return flight, a headchute positioned for receiving material removed from said belt; and a separator means below said roll means for separating liquid and material removed from said belt, said separator means being connected to said headchute to discharge removed material therefrom.
Claim 2
Dependent Claim 167 words
In apparatus for removing material from a material conveyor belt having both a carrying and a return flight with inside and outside surfaces, and a driven head pulley, the under surfaces engaging the driven head pulley, the improvement comprising: a floating roll means engaging the inside surface of the return flight, means resiliently urging said floating roll means into engagement with said return flight, a fixed axis idler roll means directly opposite said floating roll means and engaging the outside surface of the return flight, both said roll means being arranged for rotation freely about their axes, means to supply cleaning fluid to said belt in advance of said roll means, said roll means engaging and removing material adhering to the outside surface of the return flight, a headchute positioned for receiving material removed from said belt; and a separator means below said roll means for separating liquid and material removed from said belt, said separator means being connected to said headchute to discharge removed material therefrom.

References Cited (Backward Citations)

US567140A Cited
US584238A Cited
US1609849A Cited
US1543411A Cited
US1975591A Cited
US2681137A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-10 1977-12-10 1978-06-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-10 1981-12-10 1982-06-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-10 1985-12-10 1986-06-11 $7700.00 Window Closed / Lapsed

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