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US4361257A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for reducing oxidation of coffee

Assignee: Northland Aluminum Products Inc
•
Filing: 1980-12-23
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Granted: 1982-11-30
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Expires: 2000-12-23
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Abstract

Abstract A top assembly which includes an elongate pour spout and movable follower element is interfitted with the open top of a coffee receptacle whereby coffee may be dispensed through the pour spout while maintaining the main body of coffee isolated from atmosphere.

Inventors

  • 👤 Wayne B. Stone, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 20:47
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/12; A47G19/14

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 210 words
For use in association with a coffee decanter of the type primarily intended for use with automatic coffee makers, and which comprises an imperforate container having a substantially symmetrical profile and an open mouth, a top assembly including a body portion having an external periphery for mating with and in substantially sealing engagement with the open mouth of the coffee decanter, an elongated pour spout having an upper end in which the outer periphery thereof is sealed with respect to said body portion and for which the inner diameter of the upper end thereof opens through said body portion to the side thereof exterior of the coffee decanter; and a lower end extendant within the coffee decanter to and opening adjacent the bottom thereof, a substantially central bore opening therethrough, and an imperforate flexible follower as an adjunct of and opening through said central bore and sealing said central bore with respect to the interior of the coffee decanter, said flexible follower being dependent from said top assembly to within said coffee decanter and of a dimension for engagement with the upper surface of coffee within the coffee decanter and for following the descending level of coffee within the decanter as the same is poured therefrom through said pour spout.
Claim 2
Dependent Claim 210 words
For use in association with a coffee decanter of the type primarily intended for use with automatic coffee makers, and which comprises an imperforate container having a substantially symmetrical profile and an open mouth, a top assembly including a body portion having an external periphery for mating with and in substantially sealing engagement with the open mouth of the coffee decanter, an elongated pour spout having an upper end in which the outer periphery thereof is sealed with respect to said body portion and for which the inner diameter of the upper end thereof opens through said body portion to the side thereof exterior of the coffee decanter; and a lower end extendant within the coffee decanter to and opening adjacent the bottom thereof, a substantially central bore opening therethrough, and an imperforate flexible follower as an adjunct of and opening through said central bore and sealing said central bore with respect to the interior of the coffee decanter, said flexible follower being dependent from said top assembly to within said coffee decanter and of a dimension for engagement with the upper surface of coffee within the coffee decanter and for following the descending level of coffee within the decanter as the same is poured therefrom through said pour spout.
Claim 3
Dependent Claim 20 words
A top assembly as specified in claim 1 wherein said flexible follower comprises an integral part of said top assembly.
Claim 4
Dependent Claim 15 words
A top assembly as specified in claim 2 wherein said flexible follower comprises a bellows.
Claim 5
Dependent Claim 32 words
A top assembly as specified in claim 1 wherein the upper end of said flexible follower is removably attached to said body portion of said top assembly about said central bore thereof.
Claim 6
Dependent Claim 46 words
A top assembly as specified in either of claims 1, 2, 3, or 4, and wherein said top assembly includes a cap providing a contiguous cover for said central bore opening thereof and having a vent for egress of air therethrough and into said flexible follower.
Claim 7
Dependent Claim 52 words
A top assembly as specified in claim 4 and wherein said top assembly includes a cap engageable with said central bore peripheral configuration for attachment of said flexible follower to said body portion of said top assembly, said cap including a vent for egress of air therethrough and into said flexible follower.

References Cited (Backward Citations)

US642960A Cited
CH35071A Cited
US3184110A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-11-29 1986-05-31 1986-11-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-11-29 1990-05-31 1990-11-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-11-29 1994-05-31 1994-11-30 $7700.00 Window Closed / Lapsed

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