Coffee filter system

• US 4,362,623 A
• Filed: 10/23/1981
• Issued: 12/07/1982
• Est. Priority Date: 09/21/1979
• Status: Expired due to Fees

• Current Assignee: Vaino J. Holopainen
• Original Assignee: Vaino J. Holopainen
• Inventors: Holopainen, Vaino J.
• Primary Examiner(s): Adee, John
• Application Number:
  US06/314,217
• Time in Patent Office: 410 Days
• Field of Search: 210/474, 210/497.01, 210/497.2, 210/483, 210/496, 210/493.5, 210/500.1, 206/217, 206/499, 206/515, D12/22, D15/113, 426/77, 55/500, 220/406, 221/309, 221/310
• US Class Current: 210/493.5
• CPC Class Codes: A47J 31/08 Paper filter inlays therefor to be disposed after use
• CPC Class Codes: B65D 71/00 Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material

Abstract

System for packaging cup-like coffee filters, consisting of nesting the filters so that their upper edges form a frusto-conical surface and of providing a tab associated with each filter, so that the innermost filter can be readily separated from the others.

Claims

1. Coffee filter system, comprising:

(a) a plurality of cup-like disposable filters, each filter having a generally circular bottom wall and a generally frusto-conical side wall, said filters being arranged in a nested stack, and

(b) a continuous elongated tab element that is threaded sinuously from one side to another of the plurality of filters to form a tab associated with the innermost filter and which is accessible for grasping by the fingers of a user, so that, as the tab is pulled upwardly, the element lifts the filters one at a time from the remaining filters in the stack,

2. Coffee filter system as recited in claim 1, wherein the filter is formed from flat sheet and the side wall is provided with vertical corrugations.

3. Coffee filter systems as recited in claim 2, wherein the nesting of the filters causes their top edges to lie along a generally conical surface that inclines downwardly and outwardly, thus assisting in the separation of the innermost filter from the nest.