Патент USA US2138198код для вставки
‘Nov. 29, 1938. ' ' w. c. WEBER ET AL ' ' 2,138,198 COFFEE ‘MAKER Filed Aug. 17, 1956 INVENTOR. Marne. C. Mara BY mm'ipm/mv A! l/llLlE‘CM ATTORNEYS. 2,138,198 Patented Nov.‘29, 1938 UNITED sTA-TesrATENT OFFICE and Edmund H. Walter G. Weber, Painted Post, Wellech, Corning, N. ‘1., assignors to Corning Glass Works, CorninnN. Y., a corporation of New York ' Application August 17, 1936, Serial No. 96.530 This invention relates to coffee makers and particularly to the type of coifee makers wherein water, which has been heated nearly to the boil ing point, is passed through a con?ned'mass of 5. ?nely ground coffee and a suitable ?lter. In all past‘cofiee makers of this type with which we~are familiar, the brewing and} ?ltering action occurs concurrently, the ?ltering action a starting substantially immediately after the water 10 has been poured over the ground coffee. The ?ltering action'is, accordingly, made slow so as to allow the water time to extract as much of the essence from the co?ee as is practicable. In order to obtain a brew of superior quality, 15 free from the harmful effects of most coffee, the coffee should be permitted to brew from'two to four minutes as desired in accordance with the taste of the user, after which the brew should be ?ltered as completely and as quickly as pos 20 sible. So far as we are aware, however, no co?ee Fig. 3 ‘showing the parts in ?ltering po ' Fig. 6 is a perspective view of the combined valve and ?lter plate, _ - ‘ _ . Referring to the drawing, it will be seen that , 5 our coffee maker comprises a suitable vessel such as In for receivingv the brew, a combined valve and ?lter plate supported by the vessel It and havinga seat II on which a brewing chamberai 2' rests. ‘ ' ' 13 of its bottom raised so as‘to direct the flow of ?uid through a series of surrounding holes l4 therein, which are adapted-to at times register with indentations iii in the combined valve and 15 ?lter plate seat II as illustrated in Figs. 1, 3 and 5. Each of the indentations l5 has connected with it a shallow channel It directed into a largev annular sediment trough? I‘! the inner wall of ~which serves as a dam l8 over which accumulated 20 ?uid ?ows into the vessel It through a funnel-. the user to exercise his own discretion as to the like opening l9. ?ltering action. - An object of this invention is the brewing of 10 The brewing chamber l2 has the central portion brewing apparatus heretofore devised has allowed brewing time prior to the commencement of the 25 I N sition; and - The brew chamber 12 is aligned concentrically with seat I l by an upstanding'?ange 20 extending from the outer periphery of the ?lte plate seat- 25 II; and that bottom surface of bre chamber l2 which rests on seat It is ground against the seat Another object is a coffee maker which permits to produce a fluid tight ?t between it and the sur the user to exercise his own discretion as'to the faces surrounding holes Hi to prevent the passage of ?uid from the brew chamber l2 when the 30 30 brewing time. ' ' Among its features this invention embodies a‘ chamber is so positioned that the holes therein coffee maker in which the brewing and ?ltering are out of register with indentations vl5, as illus trated in Figs. 2 and 4. -Such'a condition pre action can be made to occur consecutively. ' Another feature is a coffee maker of simple vails when an arrow 24 (Fig. 1) on the ‘side of construction, and ‘in which all of the parts which chamber I2 is immediately above an arrow desig-- 35‘ contact with-the ground coffee .and the brew are nated “B” on the outer vertical surface of ?ange formed of glass so as to avoid contamination of 20 and is termed the brewing position. a beverage in a manner to obtain a brew. of superior quality and ?avor. the brew and to preserve its quality and ?avor. A further feature is a coffee maker composed‘ 40 of an upper or brewing chamber, a combined valve and ?lter plate supporting the upper cham ber, and a brew receiving vessel on which the By rotating the chamber l2 slightly clockwise until the arrow 24 is immediately above an arrow designated “F” on the ?ange 20, the holes I4 are 40 brought into register with the indentations I5 and this is termed the ?ltering position. A nib 2| (Fig. 1), protruding from the inner wall of vessel i0,- registers with a suitable notch Fig. 1 is a side elevation, partly in section, of a ~22 (Fig. 6) in the lower edge'of the combined 45 combined valve and ?lter plate rests. In the drawing: ‘ - coifee maker embodying my invent Y ; g . Fig. 2 is a plan view of Fig. 1 W1 ‘ the brewing chamber arranged in the brewing?~ osition and paittly broken away to better show tie respective 50 Pa 5; Fig. 3 is a view similar to Fig. 2, but with'the parts in the ?ltering position; _ - > ’ Fig. 4 is an‘ enlarged vfragmentary view taken on the lines 4-4 of Fig. 22" 55 ' _ Fig. 5 isa view similar toFig. 4, taken on line valve and ?lter plate and so prevents rotation of ' the plate .when the brewing chamber is being ro tated from its brewing to its ?ltering position. The vessel; It has been illustrated as being of the ‘ same type as that shown in the co-pending ‘said 5-0 application'Ser.» No. 89,183, ?led 'July 6, 1936,; but it should be understood that any vessel of proper 'sizema'y be. used if desired and the ?lter plate, manually held while the brew chamber is being rotated from the brewing to the ?ltering position. 55 2 2,188,198 In the operation of. the coffee maker, the brew 3. In a coffee brewing apparatus, a combined valve and ?lter .plate'consisting of a glass ele described, a suitable. quantity of ground coffee ment having indentations and a sediment trough placed therein, and water heated to a tempera— '. - therein and also having channels connectingsuch ture near its boiling point poured thereov'er. The indentations with the sediment trough one wall water is'allowed to stand in the upper container of which is also the wall of an outlet for accumu in contact with the ground coffee and brew for lations of ?uid in the trough and a brewing the desired period of time after which the brew chamber-supported by said plate having holes chamber is rotated to the second described or passing thru the bottom thereof arranged for 10 ?ltering position. It is to- be understood that placement in and out of register with such in 10' chamber is placed‘in the brewing position as ?rst ' during the brewing period the water and ground coffee may be stirred as frequently as desired at the discretion of the user, and further, that the ?ltering period maybe lengthened if desired by 15 rotating the brew chamber to an intermediate point between the brewing and ?ltering positions. At the ?rst passage of ?uid through the holes ll, grounds 25 (Fig. 5) which have rested in the holes will pass to the bottom of the indentations l5 now‘ below them. However, the grounds di rectly above the holes form' arches or domes, as indicated in Fig. 5, which prevent further pas sage ,of coffee grounds through holes l4, and the. layer of grounds above such domes acts as a dentations. I 4. In a coffee maker, a glass brewing cha'mber having an annular series of holes passing thru~ the bottom thereof, a glass support for said‘ chamber adapted for placement on a-vessel for 15 receiving a brew released from con?nement in said brewing chamber, said support having its chamber supporting surfaces ground against thosepbottom surfaces of said brewing chamber surrounding said holes and sealing them against 20' the passage of ?uid and having a series of hori 'zontally disposed channels with which the holes may be aligned by a slight rotary movement of the brewing chamber with respect to said sup ?lter for the liquid. ;To eliminate the small par; port. 25 ticles of grounds 26 that have left the holes l4‘ 5. A coffee brewer which consists of a brewing and passed through the shallow channels l6 at chamber having a perforated bottom, a support the beginning of the ?ow, the liquid is allowed to for said chamber adapted for placement over a ?rst accumulate in the annular sediment trough vessel for receiving the brew, said support hav 30 I 'l and settle, after which it flows over the wall ing horizontally disposed channels for directing 30 or dam l8 and through hole l9 into the vessel Hi. ?uid released from said chamber into such ves When ?ltering action has been completed, the sel, said brewing chamber and support having combined valve and ?lter plate and the brew cooperating surfaces which when arranged in one chamber are removed from the vessel. manner with respect to each other seal the per--_ It will be seen that a co?‘ee maker such as we 'forations against the passage of ?uid into such 35 have described is ideally suited to the brewing channels and when shifted to an alternative of coffee in what is believed to be the preferred position with respect to one another bring the manner, and is of simple construction requiring perforations into register with such channels. few steps in its manufactin'e. 6. In a coffee making apparatus, a brewing 40 Although we have shown and described but one I chamber for receiving a brewing mixture having embodiment of our invention, it is to be under— stood that we do not wish to be restricted tom thereof, a chamber supporting plate having ‘thereto except‘as de?ned by the appended claims. ’ a central aperture, an annular series of inden- ~ What we claim is: _ 1. In a coffee making apparatus, a brewing chamber for receiving a quantity of ground coifee and hot water, a receiving vessel for the brew, a combined valve and ?lter plate intermediate to said chamber and vessel initially preventing the 50 passage of ?uid through holes in the bottom of said chamber into said receiving vessel, said plate having a. plurality of- restricted ?uid pas sageways therein brought into alignment with such holes‘ by slight movement of said brewing 55 chamber with respect to said plate, and a trough - into which the ?ow of ?uidentering said pas sageways is directed and one wall of which forms an over?ow outlet into said receiving vessel. a. 2. In an apparatus for making drip coffee, a 60 brewing chamber, said element having holes thru the bottom thereof of a greater diameter than the cross-section of individual granules of _ ground co?ee used; and‘ a cooperating element, on which said: brew chamber rests, having sur 65 faces cooperating with bottom surfaces of said an annular series of perforations thru the bot tations and channels establishing communication between the indentations and the aperture, the 45 supporting surface of the plate cooperating with the bottom surface of said brewing chamber to close the opéh sides of the channels and pro duce restricted passageways, and the walls of the indentations cooperating with the walls of 50 the apertures to control the ?ow of ?uid thru the channels. ' - , 7. An apparatus employed in brewing "a bev erage by allowing a mixture of ?uid and dry in gredients to brew for a selectel period of time 55 and then ?ltering the brew from the dregs, con-_ . sisting of a brewing chamber for receiving the mixture having an annularly arranged series of ‘perforations thru the-bottom thereof; in com bination with a supporting plate having an an 60 nular row of indentations adapted to register with the perforations in the chamber, the sur faces of the plate-surrounding the indentations cooperating with the bottom surfaces of said brewing chamber to prevent the passage of ?uid .from said chamber, said plate having‘ an aper-‘ brewing chamber for preventing the passage of ?uid or ground coffee thru said holes, said ele ' ture therethru. and having indentations and ment also having indentations therein each for channels in its supporting surface in communi receiving such co?ee grounds as may pass thru cation with each other, said indentations being 70 one of such holes with which it may be brought - so spaced that the perforations may be brought 70 into register and each‘indentation having a com paratively shallow channel connecting it with a trough in constant communication. with a‘bot tom outlet in said element arranged over a vessel 75 for receiving the brew. into register therewl -h'to provide a path for the ?ow of ?uid through the channels. , »8'.-In an apparatus for making drip coffee, a brewing chamber having-a perforated bottom,’ a plate upon which said chamber rests in rotatable 75 aisaiea relation [with respect to said plate, said plate having surfaces. which are cooperative with the adjacent bottom surfaces of the brewing. cham ber surrounding the perforations to seal them ' against the ?ow of ?uid therefrom, said plate also having channels cooperative with bottom surfaces of said brewing chamber and terminat ing in indentations alternately disposed with re - ' 3 spect to its sealing surfaces to 'a?ord restricted outlet passages for ?uid by rotation of said brew ing chamber until such vperforations and in dentations are brought in register with each other. ' ' WALTER. C. WEBER.‘ EDMUND H. WELLECH.