Dispensing closure with flap retention

• US 4,955,513 A
• Filed: 01/16/1990
• Issued: 09/11/1990
• Est. Priority Date: 01/16/1990
• Status: Expired due to Fees

• Current Assignee: Weatherchem Corporation (Mold-Rite Plastics, LLC)
• Original Assignee: Weatherchem Corporation (Mold-Rite Plastics, LLC)
• Inventors: Bennett, Kurt K.
• Primary Examiner(s): Shaver, Kevin P.
• Application Number:
  US07/464,981
• Time in Patent Office: 238 Days
• Field of Search: 222/480, 222/481, 222/482, 222/498, 222/545-546, 222/556, 222/565, 215/232, 215/235, 215/237, 220/254, 220/307, 220/339
• US Class Current: 222/480
• CPC Class Codes: B65D 47/0847 located within a flat surface of the base element

Abstract

An injection-molded plastic dispensing cap providing a semicircular spoon opening through which spoonfuls of the contents of an associated container can be removed. The cap provides a hinged flap for closing the opening which is hinged to the body and movable between an open position and a closed position. The cap provides an inwardly extending lip along the periphery of the opening. A rib is formed on the flap to closely fit the lip along the opening when the flap is in the closed position. Projecting from the rib is a latch projection fitting under the lip to secure the flap in the closed position. The lip is provided with a central recess bridged by the latch projection. The lip and the latch cooperate to provide spaced and opposed latching portions which are relatively insensitive to variations in the torque applying the cap to an associated container and which are not adversely affected by removal of the cap from its mold while the cap is still relatively hot.

Claims

1. A dispensing cap for containers comprising an injection-molded plastic one-piece body providing a circular end wall and a cylindrical skirt extending from one side of said end wall, said end wall providing at least one opening through which contents from an associated container can be removed without removing said cap from said associated container, said body providing a flap connected to said end wall by hinge means, said flap being pivotable from an open position in which said opening provides access to said associated container and a closed position closing said opening, said end wall providing an inwardly extending lip bordering said opening along portions thereof spaced from said hinge means and providing an inwardly facing inner first surface, said lip being interrupted along a recessed central portion to provide a central radially extending recess, said flap providing an outwardly facing second surface positioned in close face-to-face adjacency with said first surface when said flap is in said closed position and cooperating therewith to provide a seal preventing passage of contents of said associated container, and a radially extending latch adjacent said second surface which extends under said lip to releasably lock said flap in said closed position, said latch extending uninterrupted past said recessed central portion, whereby said latch is substantially unaffected by shrinkage of the plastic forming said cap and variations in tightness of said cap on a container.

2. A dispensing cap as set forth in claim 1, wherein the portion of said latch extending past said recess partially closes said recess to continue said seal past said recess.

3. A dispensing cap as set forth in claim 2, wherein said second surface is provided by a rib extending laterally from the bottom surface of said flap.

4. A dispensing cap as set forth in claim 3, wherein said cap is formed of injection-molded thermoplastic material and is molded with said flap in said open position, and said flap is closed and latched before said thermoplastic material cools to substantially ambient temperature.

5. A dispensing cap as set forth in claim 4, wherein said cap further includes shaker apertures and a second flap for closing said shaker apertures.