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US3830196A Expired / Lapsed US ⏱️ 0.0 years remaining

Cleaning paint hooks

Assignee: National Steel Corp
•
Filing: 1971-08-31
•
Granted: 1974-08-20
•
Expires: 1991-08-31
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Abstract

Abstract Hangers used to suspend articles (e.g., aluminum extrusions) from a conveyor for transport through a continuous painting line are cleaned of accumulated paint without stopping the conveyor by burning the paint to ash in an oven and spray washing to remove the ash.

Inventors

  • 👤 E Guttman
  • 👤 W Suchy
  • 👤 V Berardinelli

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 17:39
CPC Classifications
B; B44; B44D; B44D3/00; B44D3/16; B44D3/166

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 123 words
System for removing coating material accumulated on carriers depending from an overhead conveyor used to continuously move articles through a zone for applying coating to the articles, said system comprising, an elongated chamber having an open entry end, an open exit end, a top wall having an opening extending its length, a bottom wall and sidewalls to provide a passageway for movement through the chamber of the carriers depending from the conveyor, means associated with at least one of the sidewalls to burn accumulated coating material from the carriers in the course of such movement thereby producing combustion product gas and leaving a solid residue, and means downstream of said sidewall associated means to impinge liquid on the carriers to remove the residue.
Claim 2
Dependent Claim 123 words
System for removing coating material accumulated on carriers depending from an overhead conveyor used to continuously move articles through a zone for applying coating to the articles, said system comprising, an elongated chamber having an open entry end, an open exit end, a top wall having an opening extending its length, a bottom wall and sidewalls to provide a passageway for movement through the chamber of the carriers depending from the conveyor, means associated with at least one of the sidewalls to burn accumulated coating material from the carriers in the course of such movement thereby producing combustion product gas and leaving a solid residue, and means downstream of said sidewall associated means to impinge liquid on the carriers to remove the residue.
Claim 3
Dependent Claim 27 words
The system of claim 1 wherein the burning means are associated with each sidewall and comprises a series of burners each supplied with air and gaseous fuel.
Claim 4
Dependent Claim 42 words
The system of claim 2 wherein the burners associated with a sidewall are horizontally aligned and equally spaced along the length of the Sidewall and each burner has a port adapted to discharge transversely of the direction of travel of the carriers.
Claim 5
Dependent Claim 23 words
The system of claim 3 wherein the burners in one sidewall are horizontally and vertically offset from the burners in the opposite sidewall.
Claim 6
Dependent Claim 54 words
The system of claim 1 wherein an elongated air conduit is positioned along the top surface of the top wall beside the opening in the top wall and this conduit contains a multiplicity of orifices adapted to direct a curtain of compressed air across the opening to shield the overhead conveyor from combustion gas.
Claim 7
Dependent Claim 17 words
The system of claim 5 wherein the air conduit extends beyond the ends of the elongated chamber.
Claim 8
Dependent Claim 19 words
The system of claim 1 wherein the chamber is movable transversely of the direction of travel of the carriers.
Claim 9
Dependent Claim 15 words
The system of claim 7 wherein the chamber is mounted on tracks for such movement.
Claim 10
Dependent Claim 132 words
System for removing coating material accumulated on carriers depending from an overhead conveyor used to continuously move articles through a coating line including a zone for applying coating to the articles, said system comprising means for burning accumulated coating material from said carriers thereby producing combustion product gas and leaving a solid residue, means downstream of said burning means to impinge liquid on the carriers to remove the residue, and means associated with each of said means to move zones including each of said means transversely of the direction of travel of the carriers between in-line and out-of-line positions, thereby providing means to move said zones into the line for periodic removal of accumulated coating material and means to remove said zones from the line to minimize interference with coated article output.
Claim 11
Dependent Claim 132 words
System for removing coating material accumulated on carriers depending from an overhead conveyor used to continuously move articles through a coating line including a zone for applying coating to the articles, said system comprising means for burning accumulated coating material from said carriers thereby producing combustion product gas and leaving a solid residue, means downstream of said burning means to impinge liquid on the carriers to remove the residue, and means associated with each of said means to move zones including each of said means transversely of the direction of travel of the carriers between in-line and out-of-line positions, thereby providing means to move said zones into the line for periodic removal of accumulated coating material and means to remove said zones from the line to minimize interference with coated article output.
Claim 12
Dependent Claim 13 words
The system of claim 9 wherein the means for transverse movement comprise tracks.
Claim 13
Dependent Claim 213 words
System for removing coating material accumulated on carriers depending from an overhead conveyor used to continuously move articles through a zone for applying coating to the articles, said system comprising means for burning accumulated coating material from said carriers thereby producing combustion product gas and leaving a solid residue, means downstream of said burning means to wash the residue from the carriers comprising an upper portion having sidewalls, an entry endwall containing a rectangular elongated opening extending from its bottom edge to its top edge, an exit endwall containing a similar opposite opening, a top wall having an opening extending its length and joining the openings in the endwalls to provide a passageway for movement of the carriers depending from the conveyor, and an open bottom, means within the upper portion to spray liquid transversely of the direction of travel of the carriers to impinge liquid on the carriers to remove residue therefrom, a lower portion having an open top opposite the open bottom of the upper portion and functioning as a sump for receiving the liquid sprayed within the upper portion, a reticulated member interposed between the upper portion and lower portion to screen residue from the wash liquid, and means to recirculate liquid from the lower portion to the spray means.
Claim 14
Dependent Claim 213 words
System for removing coating material accumulated on carriers depending from an overhead conveyor used to continuously move articles through a zone for applying coating to the articles, said system comprising means for burning accumulated coating material from said carriers thereby producing combustion product gas and leaving a solid residue, means downstream of said burning means to wash the residue from the carriers comprising an upper portion having sidewalls, an entry endwall containing a rectangular elongated opening extending from its bottom edge to its top edge, an exit endwall containing a similar opposite opening, a top wall having an opening extending its length and joining the openings in the endwalls to provide a passageway for movement of the carriers depending from the conveyor, and an open bottom, means within the upper portion to spray liquid transversely of the direction of travel of the carriers to impinge liquid on the carriers to remove residue therefrom, a lower portion having an open top opposite the open bottom of the upper portion and functioning as a sump for receiving the liquid sprayed within the upper portion, a reticulated member interposed between the upper portion and lower portion to screen residue from the wash liquid, and means to recirculate liquid from the lower portion to the spray means.
Claim 15
Dependent Claim 98 words
System for removing coating material accumulated on carriers depending from an overhead conveyor used to continuously move articles through a coating line including a zone for applying coating to the articles, said system comprising means for burning accumulated coating material from said carriers thereby producing combustion product gas and leaving a solid residue, means downstream of said burning means to impinge liquid on the carriers to remove the residue, said burning means and said liquid impinging means each being associated with structure containing means defining a passageway having access from the top for movement of the carriers therethrough.
Claim 16
Dependent Claim 98 words
System for removing coating material accumulated on carriers depending from an overhead conveyor used to continuously move articles through a coating line including a zone for applying coating to the articles, said system comprising means for burning accumulated coating material from said carriers thereby producing combustion product gas and leaving a solid residue, means downstream of said burning means to impinge liquid on the carriers to remove the residue, said burning means and said liquid impinging means each being associated with structure containing means defining a passageway having access from the top for movement of the carriers therethrough.

References Cited (Backward Citations)

US2560270A Cited
US2963389A Cited
US3109439A Cited
US3401668A Cited
US3642012A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-08-19 1978-02-18 1978-08-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-19 1982-02-18 1982-08-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-19 1986-02-18 1986-08-20 $7700.00 Window Closed / Lapsed

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