US3771431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beverage brewing apparatus
Assignee: Cory Corp
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Filing: 1972-04-06
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Granted: 1973-11-13
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Expires: 1992-04-06
Abstract
Abstract A brewing device, such as a coffee brewer, wherein the hot water is delivered to the brewing chamber through a fixed inlet tube with the charge of beverage ingredients being provided in a bag and held in the brewing chamber suitably to expand against the outer end of the inlet passage means thereby to form a sealed connection permitting the brewing liquid to enter directly through the wall of the bag into the charge material. The beverage is then brewed by the water within the bag and the resultant brew passes outwardly from the bag for delivery to a receiving means such as a decanter. The outlet of the water delivery means is caused to define a flat surface against which the bag is urged as a result of the swelling of the bag caused by the delivery of the hot water thereinto.
Inventors
- 👤 M Ehrenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:43
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/057
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
126 words
A liquid flow transfer structure comprising: means defining a passage for conducting a brewing liquid and defining a fixed outer end; means for supporting a bag containing a beverage ingredient and having an expandable portion adjacent said fixed passage end; and a force distribution element having a shank portion removably carried in said passage outer end and a flat head portion defining a substantial bag-engaging outer surface and a stop surface opposite said bag-engaging surface for limiting the movement of said shank portion axially into said passage to dispose said bag-engaging surface to have a preselected disposition relative to said bag supporting means notwithstanding urging of the shank portion outwardly relative to said passage as a result of liquid pressure and flow forces directed outwardly thereagainst.
Claim 2
Dependent Claim
126 words
A liquid flow transfer structure comprising: means defining a passage for conducting a brewing liquid and defining a fixed outer end; means for supporting a bag containing a beverage ingredient and having an expandable portion adjacent said fixed passage end; and a force distribution element having a shank portion removably carried in said passage outer end and a flat head portion defining a substantial bag-engaging outer surface and a stop surface opposite said bag-engaging surface for limiting the movement of said shank portion axially into said passage to dispose said bag-engaging surface to have a preselected disposition relative to said bag supporting means notwithstanding urging of the shank portion outwardly relative to said passage as a result of liquid pressure and flow forces directed outwardly thereagainst.
Claim 3
Dependent Claim
30 words
The liquid flow structure of claim 1 wherein said shank portion of said force distributing element includes a concentric seal member sealingly engaging the passage means adjacent said outer end.
Claim 4
Dependent Claim
22 words
The liquid flow structure of claim 1 wherein said head portion is defined by a rounded peripheral edge at said outer surface.
Claim 5
Dependent Claim
22 words
The liquid flow structure of claim 1 wherein said head portion has a thickness approximately one-half the length of said shank portion.
Claim 6
Dependent Claim
24 words
The liquid flow structure of claim 1 wherein said head portion has a diameter of over approximately twice the diameter of said shank portion.
Claim 7
Dependent Claim
23 words
The liquid flow structure of claim 1 wherein said shank portion has a length in said passage of at least approximately one-half inch.
Claim 8
Dependent Claim
20 words
The liquid flow structure of claim 1 wherein said head portion has a thickness of at least approximately one-quarter inch.
Claim 9
Dependent Claim
145 words
A liquid flow transfer structure comprising: means defining a passage for conducting a brewing liquid and defining an outer end; means for supporting a bag containing a beverage ingredient and having an expandable portion adjacent said fixed passage end, said supporting means having a closed bottom wall and a peripheral upstanding side wall; and a force distributing element at said passage end defining a bag-engaging outer flat surface having a substantial area less than the area of said expandable portion of the bag whereby a substantial surface portion of the bag engages the said element surface and a substantial portion of the bag expands around the peripheral edge of said force distributing element in an expanded condition of the bag resulting from flow of brewing liquid into the bag from said passage and upwardly from the bag through said portion expanded around said peripheral edge.
Claim 10
Dependent Claim
145 words
A liquid flow transfer structure comprising: means defining a passage for conducting a brewing liquid and defining an outer end; means for supporting a bag containing a beverage ingredient and having an expandable portion adjacent said fixed passage end, said supporting means having a closed bottom wall and a peripheral upstanding side wall; and a force distributing element at said passage end defining a bag-engaging outer flat surface having a substantial area less than the area of said expandable portion of the bag whereby a substantial surface portion of the bag engages the said element surface and a substantial portion of the bag expands around the peripheral edge of said force distributing element in an expanded condition of the bag resulting from flow of brewing liquid into the bag from said passage and upwardly from the bag through said portion expanded around said peripheral edge.
Claim 11
Dependent Claim
18 words
The liquid flow structure of claim 8 wherein said force distributing element is formed of a molded plastic.
Claim 12
Dependent Claim
37 words
The liquId flow structure of claim 8 wherein said area of the bag engaging surface is less than approximately one-half that of the internal area of the bag supporting means at the plane of said bag-engaging surface.
Claim 13
Dependent Claim
147 words
A liquid flow trnasfer structure comprising: means defining a passage for conducting a brewing liquid and defining an outer end; means for supporting a bag containing a beverage ingredient and having an expandable portion adjacent said fixed passage end; and a force distributing element at said passage end defining a bag-engaging outer flat surface having a substantial area less than the area of said expandable portion of the bag whereby a substantial surface portion of the bag engages the said element surface and a substantial portion of the bag expands around the peripheral edge of said force distributing element in an expanded condition of the bag resulting from flow of brewing liquid into the bag from said passage, said passage being circular in cross section and said force distributing element defining an axial bore having a diameter less than approximately one-half the diameter of said passage end.
Claim 14
Dependent Claim
147 words
A liquid flow trnasfer structure comprising: means defining a passage for conducting a brewing liquid and defining an outer end; means for supporting a bag containing a beverage ingredient and having an expandable portion adjacent said fixed passage end; and a force distributing element at said passage end defining a bag-engaging outer flat surface having a substantial area less than the area of said expandable portion of the bag whereby a substantial surface portion of the bag engages the said element surface and a substantial portion of the bag expands around the peripheral edge of said force distributing element in an expanded condition of the bag resulting from flow of brewing liquid into the bag from said passage, said passage being circular in cross section and said force distributing element defining an axial bore having a diameter less than approximately one-half the diameter of said passage end.
Claim 15
Dependent Claim
131 words
A liquid flow transfer structure comprising: means defining a passage for conducting a brewing liquid and defining an outer end; means for supporting a bag containing a beverage ingredient and having an expandable portion adjacent said fixed passage end; a force distributing element at said passage end defining a bag-engaging outer flat surface having a substantial area less than the area of said expandable portion of the bag whereby a substantial surface portion of the bag engages the said element surface and a substantial portion of the bag expands around the peripheral edge of said force distributing element in an expanded condition of the bag resulting from flow of brewing liquid into the bag from said passage; and means for adjustably positioning said force distributing element relative to said bag-supporting means.
Claim 16
Dependent Claim
131 words
A liquid flow transfer structure comprising: means defining a passage for conducting a brewing liquid and defining an outer end; means for supporting a bag containing a beverage ingredient and having an expandable portion adjacent said fixed passage end; a force distributing element at said passage end defining a bag-engaging outer flat surface having a substantial area less than the area of said expandable portion of the bag whereby a substantial surface portion of the bag engages the said element surface and a substantial portion of the bag expands around the peripheral edge of said force distributing element in an expanded condition of the bag resulting from flow of brewing liquid into the bag from said passage; and means for adjustably positioning said force distributing element relative to said bag-supporting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |