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US4599016A Expired / Lapsed US ⏱️ 0.0 years remaining

Cyclone apparatus for pneumatically moving granular matter

Assignee: WALINGA BODY & COACH Ltd
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Filing: 1985-07-12
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Granted: 1986-07-08
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Expires: 2005-07-12
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Abstract

Abstract A pneumatic device for moving granular matter is described which comprises a first cyclonic separator for receiving granular matter conveyed by an air stream from a first location and a secondary cyclonic air cleaner for removing dust and abrasive particles from the air stream prior to passage thereof into the intake of the blower. The granular matter received by the first cyclonic separator passes through a rotary valve to a duct where it is conveyed to a second location by a high pressure air stream from the outlet of the blower.

Inventors

  • 👤 J. John Medemblik

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 18:41
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/28

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 203 words
A pneumatic conveyance apparatus for moving granular matter, comprising: an enclosed container having a lower cyclone portion and an upper portion defined by an internal partition having an aperture therethrough allowing communication between the portions, said container having at least one inlet for sucking air and granular matter into the lower cyclone portion, and having an outlet for exhausting air from the upper portion; valve and duct means for conveying granular matter collected in the lower cyclone portion therefrom; a blower connected between the container outlet and the valve and duct means for creating a partial vacuum in the container and an elevated pressure at the valve and duct means; and a secondary cleaner for air leaving the container and entering the blower, comprising an intake for particulate containing air within the upper portion of the container, the intake leading tangentially into a cyclone forming means, said means having opposed frustoconical members joined at their respective bases so as to define a slot or a plurality of ports about the circumference of the means at the area of the join, a container enclosing the cyclone means for collecting particles ejected from the cyclone, and an outlet for cleaned air leaving the cyclone means.
Claim 2
Dependent Claim 203 words
A pneumatic conveyance apparatus for moving granular matter, comprising: an enclosed container having a lower cyclone portion and an upper portion defined by an internal partition having an aperture therethrough allowing communication between the portions, said container having at least one inlet for sucking air and granular matter into the lower cyclone portion, and having an outlet for exhausting air from the upper portion; valve and duct means for conveying granular matter collected in the lower cyclone portion therefrom; a blower connected between the container outlet and the valve and duct means for creating a partial vacuum in the container and an elevated pressure at the valve and duct means; and a secondary cleaner for air leaving the container and entering the blower, comprising an intake for particulate containing air within the upper portion of the container, the intake leading tangentially into a cyclone forming means, said means having opposed frustoconical members joined at their respective bases so as to define a slot or a plurality of ports about the circumference of the means at the area of the join, a container enclosing the cyclone means for collecting particles ejected from the cyclone, and an outlet for cleaned air leaving the cyclone means.
Claim 3
Dependent Claim 17 words
An apparatus as claimed in claim 1, wherein the internal partition is a downwardly extending frustoconical section.
Claim 4
Dependent Claim 41 words
An apparatus as claimed in claim 1, wherein the lower cyclone portion comprises a downwardly extending frustoconical lower surface, a cylindrical side surface, and the internal partition, said partition being frustoconically shaped and extending downwardly and inwardly from the side surface.
Claim 5
Dependent Claim 30 words
An apparatus as claimed in claim 1, wherein the inlet of the container is positioned to provide a tangential introduction of air and granular matter into the lower cyclone portion.
Claim 6
Dependent Claim 25 words
An apparatus as claimed in claim 1, wherein the upper portion comprises more than twice the volume of the lower cyclone portion of the container.
Claim 7
Dependent Claim 53 words
An apparatus as claimed in claim 1, wherein the valve and duct means comprises an airsealed rotary valve having a plurality of vanes extending radially from a hub, said vanes causing movement of granular matter collected in the lower cyclone portion to a duct opening into the bottom portion of the rotary valve.
Claim 8
Dependent Claim 38 words
An apparatus as claimed in claim 6, wherein the vanes are provided with flexible or adjustable tips which sealingly engage the inner surface of the valve to provide an airseal between the duct and the lower cyclone portion.
Claim 9
Dependent Claim 15 words
An apparatus as claimed in claim 1, wherein the blower is a positive displacement blower.
Claim 10
Dependent Claim 48 words
An apparatus as claimed in claim 1, wherein the secondary cleaner further comprises a hinged bottom plate for the container having a counterweight so that the plate remains closed under the influence of the suction produced by the blower, and swings open when the blower is turned off.

References Cited (Backward Citations)

US2535140A Cited
US2489618A Cited
US2946626A Cited
US2917344A Cited
US3423130A Cited
US3425192A Cited
US3611679A Cited
US4200415A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-07-07 1990-01-06 1990-07-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-07-07 1994-01-06 1994-07-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-07-07 1998-01-06 1998-07-08 $7700.00 Window Closed / Lapsed

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