# US 10,368,685 B2 · Apparatus and method for extracting an infusion > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,368,685 B2 - Document ID: US10368685B2 - Status: Granted - Kind: B2 - Application number: 15/227,241 - Filed: 2016-08-03 - Published: 2017-02-02 - Granted: 2019-08-06 - Earliest claimed: 2008-05-12 - Assignees: Espro, Inc. - Applicants: Espro Inc. - Inventors: Christopher McLean; Bruce A. Constantine - Web page: https://patentgrep.com/patent/US10368685B2 ## CPC - A47J 31/38: operated by hand - A47J 31/20: having immersible, e.g. rotatable, filters - B01D 11/0253: {Fluidised bed of solid materials} - A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract An infusion extractor is provided including a plunger to be inserted into an infusing container containing the infusion mixture that has vertical inner walls oriented parallel to a vertical axis of the container. The plunger includes a first surface with a seal situated at an edge of the surface. The seal is adapted for sealing against the inner walls of the infusing container as the plunger moves within the container, to define a first chamber containing the mixture of infusible material and extract. The plunger also includes a second surface extending from the first surface and defining a second chamber; the second surface includes extract flow openings which permit flow of extract from the first chamber into the second chamber. At least a portion of the extract flow openings are situated at a depth either above or below the first surface along the vertical axis. ## Claims ### Claim 1 An apparatus for creating and separating an infused extract from a mixture of an infusible material and the extract, the apparatus comprising: a container having one or more vertical inner walls oriented parallel to a vertical axis of the container; a plunger adapted to be inserted into the container, wherein the plunger is adapted to be moved within the container along the vertical axis thereof, wherein the plunger in turn includes: a handle adapted to move the plunger within the container along the vertical axis thereof; a first surface transverse to the vertical axis and including at least one seal situated at one or more edges of said first surface, wherein said at least one seal is adapted for sealing engagement with the one or more inner walls of the container as the plunger is moved within the container, the seal being configured to divide the container into a first reservoir for receiving a mixture of infusible material and extract, and an second reservoir for receiving extract separated from the infusible material; a second surface extending from said first surface and at least partially defining and surrounding a chamber; and a third surface extending from the second surface; and a receptacle defined by an end wall connected to a peripheral wall for capturing infusible material that has been used to produce infused extract to facilitate removal of the infusible material from the apparatus, the plunger being distinct from and moveable with respect to the receptacle, the plunger being configured to direct the infusible material into the receptacle as the plunger is advanced along the one or more vertical inner walls of the container toward the receptacle while infused extract flows from the first reservoir to the second reservoir. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the receptacle is configured to be removed from the apparatus with the plunger to facilitate removal of the infusible material from the apparatus. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the peripheral wall of the receptacle is generally cylindrical in shape. ### Claim 4 (depends on 2) The apparatus of claim 2, wherein the receptacle and plunger are configured to cause at least a portion of the chamber to extend into the receptacle as the plunger directs infusible material into the receptacle as the plunger is advanced along the one or more vertical inner walls of the container. ### Claim 5 A method of creating and separating an infused extract from a mixture of an infusible material and the extract comprising: providing a container having one or more vertical inner walls oriented parallel to a vertical axis of the container; disposing a plunger into the container including at least one filter disposed therein, wherein the plunger is adapted to be moved within the container along the vertical axis thereof, performing a filtering operation with the plunger to separate the infused extract from the mixture of the infusible material and the extract by displacing the plunger along the vertical axis and directing infused extract through the at least one filter disposed in the plunger; directing infusible material separated from the infused extract during the filtering operation into a receptacle distinct from and moveable with respect to the plunger that cooperates with the plunger to isolate the infusible material from the infused extract as the filter is moved toward the receptacle. ### Claim 6 (depends on 5) The method of claim 5, further comprising removing the plunger and receptacle from the container containing the infusible material. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the receptacle is located proximate a top of the container. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the plunger is configured to direct the infusible material into the receptacle as the plunger is advanced upwardly along the one or more vertical inner walls of the container. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the plunger is configured to direct the infusible material into the receptacle as the plunger is advanced upwardly along the one or more vertical inner walls of the container. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the receptacle acts as a lid for the container. ### Claim 11 (depends on 5) The method of claim 5, wherein performing the filtering operation with the plunger includes displacing the plunger along the vertical axis along an upward direction away from a bottom of the container toward the receptacle.