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US4619766A Expired / Lapsed US ⏱️ 0.0 years remaining

Beverage brewings filters, apparatus and method

Assignee: Individual
•
Filing: 1985-09-27
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Granted: 1986-10-28
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Expires: 2005-09-27
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Abstract

Abstract A nested stack of bowl-like disposable beverage brewing filter sheets. Each filter sheet has two adjacent folds in opposite direction forming a grippable strip for removing discrete sheets from the stack. A container for the nested stack has a removable panel for exposing the grippable strip of the outermost sheet for easy finger gripping and discrete removal of the sheet. The container is slideably receivable in a bracket adapted to hold it as a dispenser. Refillable dispensers are also disclosed. A method for preparing a beverage brewing apparatus for brewing comprises the steps of grasping with fingers of one hand the strip of the outermost filter sheet at a location other than at the edge of the sheet, pulling the filter sheet as a discrete entity from the stack, and lining the brewing basket with the single filter sheet in preparation for brewing.

Inventors

  • 👤 Thomas B. Smiley
  • 👤 Christine L. Smiley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 08:57
CPC Classifications
B; B65; B65D; B65D83/00; A; A47; A47J; A47J31/00; A47J31/06; A47J31/08; Y; Y10; Y10S; Y10S206/00; Y10S206/804

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 90 words
In a disposable beverage brewing filter of the type including a bowl-like shaped sheet of porous material having a flat bottom wall and a surrounding corrugated side wall defining an open end for receiving coffee, tea or the like to be brewed, the improvement comprising: the bottom wall of said sheet including a fold therein of predetermined, non-interlocking configuration with opposing generally parallel flap portions extending across the bottom wall to define a transverse integral strip to facilitate manual separation and removal of individual filters from a nested stack thereof.
Claim 2
Dependent Claim 90 words
In a disposable beverage brewing filter of the type including a bowl-like shaped sheet of porous material having a flat bottom wall and a surrounding corrugated side wall defining an open end for receiving coffee, tea or the like to be brewed, the improvement comprising: the bottom wall of said sheet including a fold therein of predetermined, non-interlocking configuration with opposing generally parallel flap portions extending across the bottom wall to define a transverse integral strip to facilitate manual separation and removal of individual filters from a nested stack thereof.
Claim 3
Dependent Claim 93 words
A disposable beverage brewing filter, comprising: a sheet of suitable porous material; said sheet being formed into a bowl-like shape having a bottom wall defining a closed end, and a surrounding side wall with an upper edge defining an open end with a cavity recess therein for receiving coffee, tea or the like to be brewed; said sheet including a non-interlocking fold of predetermined configuration extending across at least the bottom wall thereof to define a transverse integral strip for facilitating manual separation and removal of individual filters from a nested stack thereof.
Claim 4
Dependent Claim 93 words
A disposable beverage brewing filter, comprising: a sheet of suitable porous material; said sheet being formed into a bowl-like shape having a bottom wall defining a closed end, and a surrounding side wall with an upper edge defining an open end with a cavity recess therein for receiving coffee, tea or the like to be brewed; said sheet including a non-interlocking fold of predetermined configuration extending across at least the bottom wall thereof to define a transverse integral strip for facilitating manual separation and removal of individual filters from a nested stack thereof.
Claim 5
Dependent Claim 15 words
The filter of claim 2, wherein said sheet of porous material is comprised of paper.
Claim 6
Dependent Claim 14 words
The filter of claim 2, wherein the side wall of said sheet is corrugated.
Claim 7
Dependent Claim 30 words
The filter of claim 2, wherein the fold is substantially straight and also extends through portions of the side wall between opposite points on the upper edge of said sheet.
Claim 8
Dependent Claim 28 words
The filter of claim 2, wherein the fold is of Z-shaped transverse cross-section with parallel fold portions extending from opposite sides of the bottom wall of said sheet.
Claim 9
Dependent Claim 28 words
The filter of claim 2, wherein the fold is of dovetail-shaped transverse cross-section with parallel fold portions extending from opposite sides of the bottom wall of said sheet.
Claim 10
Dependent Claim 190 words
Dispenser apparatus, comprising: a container having opposite ends, one end being closed and the other end including an access opening of predetermined size therein; a nested stack of disposable beverage brewing filters located within said container; each filter being formed from a sheet of suitable porous material into a bowl-like shape having a flat bottom wall defining a closed end, and a surrounding corrugated side wall with an upper edge defining an open end with a cavity recess therein for receiving coffee, tea or the like to be brewed; the upper edges of said filters being oriented toward the open end of said container, with the open ends of said filters being relatively larger than the access opening in the open end of said container so that said nested stack of filters is normally retained within said container; and each filter including a fold therein of predetermined non-interlocking configuration with opposing generally parallel flap portions extending across the bottom wall of the respective sheet to define a transverse integral strip reachable through the access opening in said container to facilitate individual manual separation and removal of each endmost filter therefrom.
Claim 11
Dependent Claim 190 words
Dispenser apparatus, comprising: a container having opposite ends, one end being closed and the other end including an access opening of predetermined size therein; a nested stack of disposable beverage brewing filters located within said container; each filter being formed from a sheet of suitable porous material into a bowl-like shape having a flat bottom wall defining a closed end, and a surrounding corrugated side wall with an upper edge defining an open end with a cavity recess therein for receiving coffee, tea or the like to be brewed; the upper edges of said filters being oriented toward the open end of said container, with the open ends of said filters being relatively larger than the access opening in the open end of said container so that said nested stack of filters is normally retained within said container; and each filter including a fold therein of predetermined non-interlocking configuration with opposing generally parallel flap portions extending across the bottom wall of the respective sheet to define a transverse integral strip reachable through the access opening in said container to facilitate individual manual separation and removal of each endmost filter therefrom.
Claim 12
Dependent Claim 16 words
The dispenser apparatus of claim 8, wherein said sheets of porous material are comprised of paper.
Claim 13
Dependent Claim 31 words
The dispenser apparatus of claim 8, wherein the fold is substantially straight and also extends through portions of the side wall between opposite points on the upper edge of said sheet.
Claim 14
Dependent Claim 27 words
The dispenser apparatus of claim 8, wherein the fold is of Z-shaped cross-section with flap portions extending from opposite sides of the bottom wall of said sheet.
Claim 15
Dependent Claim 27 words
The dispenser apparatus of claim 8, wherein the fold is of dovetail-shaped cross-section with flap portions extending from opposite sides of the bottom wall of said sheet.
Claim 16
Dependent Claim 40 words
The dispenser apparatus of claim 8, further including: an openable cover in the end of said dispenser opposite the end including the access opening, to facilitate refill of said filters; and means for securing said dispenser to a mounting surface.
Claim 17
Dependent Claim 19 words
The dispenser apparatus of claim 8, further including: a removable panel disposed in the access opening of said container.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-10-27 1990-04-28 1990-10-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-10-27 1994-04-28 1994-10-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-10-27 1998-04-28 1998-10-28 $7700.00 Window Closed / Lapsed

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