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US3815544A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for striping inside seams of cans

Assignee: Nordson Corp
•
Filing: 1971-01-19
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Granted: 1974-06-11
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Expires: 1991-01-19
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Abstract

Abstract AN APPARATUS FOR APPLYING AN IMPERVIOUS PROTECTIVE COATING OVER THE SEAMS OF CYLINDRICAL METAL CAN BODIES EITHER BEFORE OR AFTER THE SEAMS ARE WELDED, SOLDERED, OR CEMENTED AND PRIOR TO SPRAY COATING THECOMPLETE INTERIOR OF THE BODIES. THE APPARATUS IS OPERABLE TO INTERMITTENTLY APPLY AN AIRLESS SPRAY TO THE INTERIOR SEAMS OF THE CANS AS THEY CONTINUOUSLY MOVE PAST AN AIRLESS SPRAY GUN SECURED TO THE END OF A STUBHORN OF A CAN FORMING LINE. THE APPARATUS INCLUDES A NEW AND IMPROVED AIRLESS SPRAY NOZZLE WHICH IS OPERABLE TO ATOMIZE THE SPRAY NEARER THE NOZZLE THAN HAS HERETOFORE BEEN POSSIBLE. IT ALSO INCLUDES A PAIR OF AIR JETS LOCATED ON OPPOSITE SIDES OF THE SPRAY AND OPERABLE TO CONFINE THE ATOMIZED SPRAY OR FORG TO THE SEAM OF THE CAN SO THAT LITTLE OR NO EXCESS MATERIAL IS SPRAYED ONTO THAT PORTION OF THE CAN LOCATED ADJACENT THE SEAM.

Inventors

  • 👤 A Rood
  • 👤 E Hogstrom
  • 👤 W Stumphauzer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 21:28
CPC Classifications
B; B05; B05B; B05B9/00; B05B9/01; B05B1/00; B05B1/28; B05B13/00; B05B13/06; B05B13/0618

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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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