End closure for disposable dust bag

• US 3,237,846 A
• Filed: 03/06/1964
• Issued: 03/01/1966
• Est. Priority Date: 03/06/1964
• Status: Expired due to Term

• Current Assignee: Raymond L. Brown
• Original Assignee: Raymond L. Brown
• Inventors: Brown, Raymond L.
• Application Number:
  US04/349,861
• Time in Patent Office: 725 Days
• US Class Current: 55/361
• CPC Class Codes: A47L 9/1454 Self-sealing closures, e.g. valves
• CPC Class Codes: Y10S 55/02 Vacuum cleaner bags

Claims

1. AND END CLOSURE FOR A DUST BAG COMPRISING:

TWO SUPERIMPOSED FLEXIBLE SHEETS, EACH SHEET HAVING ONE APERTURE THEREIN COPLANAR WITH SAID SHEET, A PORTION OF EACH SHEET BEING CUT TO DEFINE A SINGLE FLAP INTEGRAL WITH SAID SHEET AND NORMALLY CANTILEVERED THEREFROM INTO SAID ONE APERTURE AND IS COPLANAR RELATION WITH SAID ONE APERTURE TO CLOSE A MAJOR PART OF SAID APERTURE WHILE LEAVING A SINGLE MINOR PART OF SAID APERTURE OPEN, THE APERTURES IN THE SUPERMPOSED SHEETS BEING SUBSTANTIALLY IN REGISTRY, BOTH FLAPS, WHEN IN COPLANAR RELATION WITH THEIR RESPECTIVE APERTURES, BEING ARRANGED SUCH THAT THEY EXTEND IN SUBSTANTIALLY DIAMETRICALLY OPPOSITE DIRECTIONS TOWARD EACH OTHER AND OVERLAP EACH OTHER WITH THE FLAP IN ONE SHEET COMPOLETELY COVERING THE SINGLE OPEN MINOR PART OF THE APERTURE IN THE OTHER SHEET AND THE FLAP IN SAID OTHER SHEET COMPLETELY COVERING THE SINGLE OPEN MINOR PART OF THE APERTURE IN SAID ONE SHEET.