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US3333528A Expired / Lapsed US ⏱️ 0.0 years remaining

Drip infusion brew maker with wide capacity range

Assignee: Vacuum Die Casting Corp
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Filing: 1964-12-14
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Granted: 1967-08-01
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Expires: 1984-12-14
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Abstract

No abstract record available.

Inventors

  • 👤 Joseph A Bender

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 08:52
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/10; A47J31/106; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 202 words
A DRIP BREW MAKER COMPRISING A HOT WATER RESERVOIR, A BREW SERVER THEREBENEATH, A BASKET FOR THE INFUSION MATERIAL DISPOSED BETWEEN THE RESERVOIR AND THE SERVER, A SUPPORT FOR SAID BASKET, A SMALL FLOW RATE CONTROL ORIFICE LOCATED NEAR THE BOTTOM OF THE RESERVOIR AND EFFECTIVE TO FLOW HOT WATER TO THE BASKET AT A DESIRED RATE FOR A DESIRED EXTRACTION TIME FOR RELATIVELY SMALL QUANTITIES OF WATER IN THE RESERVOIR, AND AN ADDITIONAL RELATIVELY LARGE FLOW PASSAGE LOCATED AT A SUBSTANTIALLY HIGHER LEVEL IN THE RESERVOIR AND EFFECTIVE TO GREATLY ACCELERATE THE FLOW OF HOT WATER FOR QUANTITIES OF WATER ABOVE SAID HIGHER LEVEL IN THE RESERVOIR, WHEREBY THE EXTRACTION TIME FOR LARGER QUANTITIES ABOVE SAID HIGHER LEVER IS ONLY A LITTLE MORE THAN THE EXTRACTION TIME FOR THE QUANTITY AT SAID HIGHER LEVEL, THE SAID FLOW RATE CONTROL ORIFICE AND THE ACCELERATING PASSAGE BEING SO DIMENSIONED THAT THE HOT WATER FLOW FROM THE RESERVOIR IS CONTROLLED TO PROVIDE A TOTAL DISCHARGE TIME FROM THE RESERVOIR WHICH WHEN ADDED TO THE RESIDUAL BASKET DRAIN TIME COMES WITHIN THE RANGE OF OPTIMUM EXTRACTION TIME FOR THE MATERIAL CONTEMPLATED TO BE USED, AND REGARDLESS OF QUANTITY WITHIN A CONTEMPLATED WIDE RANGE OF QUANTITY.

References Cited (Backward Citations)

US203179A Cited
US1139129A Cited
US1276774A Cited
US1601987A Cited
DE649734C Cited
US2245389A Cited
US2143046A Cited
US2513593A Cited
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US2767640A Cited
US2856843A Cited
US3040649A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-07-31 1971-01-30 1971-08-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-07-31 1975-01-30 1975-08-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-07-31 1979-01-30 1979-08-01 $7700.00 Window Closed / Lapsed

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