IP Library › Granted Patent US 9,392,900
Granted Patent B2
US 9,392,900 · App. 14/644,185 · Granted Jul 19, 2016

Apparatus and method for extracting an infusion

Inventors: Christopher R. McLean (Vancouver, CA); Bruce A. Constantine (North Attleboro, MA)
Assignee: ESPRO, INC.
A47J31/38A47J31/20B01D11/0253
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Quick Facts
Patent No.
US 9,392,900
App. No.
14/644,185
Granted
Jul 19, 2016
Kind
B2
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. The plunger also includes a second surface extending from the first surface and defining a 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 (21)

1. An apparatus for infusing an extract comprising:

a) an container for holding infused extract having a peripheral wall defining a volume therein, the peripheral wall defining an open top of the container; and

b) a plunger configured to be received through the open top of the container, the plunger and container cooperating to define a lower chamber for containing an infused extract and an upper chamber for containing infused extract, the plunger including:

i) a fluid chamber having a top end and a bottom end, the fluid chamber including a peripheral wall that defines a volume therein for containing infused extract, the peripheral wall of the fluid chamber including an uppermost extract flow opening which traverses the peripheral wall, the uppermost extract flow opening defining at least one filter element;

ii) a peripheral seal disposed proximate an outer periphery of the plunger, the peripheral seal being configured to provide a seal between the plunger and the peripheral wall of the container, the uppermost extract flow opening being situated below the seal to define an annular gap disposed above the uppermost extract flow opening and defined between the peripheral wall of the fluid chamber and the peripheral wall of the container;

iii) a handle attached to the fluid chamber for moving the plunger along the peripheral wall of the container; and

iv) a second extract flow opening in direct fluid communication with the upper chamber disposed radially inwardly from the peripheral seal, the second extract flow opening defining a second filter element, the second filter element being disposed in a plane that is perpendicular to the handle.

2. The apparatus of claim 1 , wherein the peripheral seal and fluid chamber are discrete components.

3. The apparatus of claim 1 , wherein the at least one filter element includes a plurality of individual filter elements such that the infused extract flows through the plurality of individual filter elements along a flow path as the fluid chamber is advanced downwardly into the container.

4. The apparatus of claim 1 , wherein the bottom of the fluid chamber is closed.

5. An apparatus for infusing an extract comprising:

a) a container for holding infused extract having a peripheral wall defining a volume therein, the peripheral wall defining an open top of the container; and

b) a plunger configured to be received through the open top of the container, the plunger and container cooperating to define a lower chamber for containing an infused extract and an upper chamber for containing infused extract, the plunger including:

i) a fluid chamber having a top end and a bottom end, the fluid chamber including a peripheral wall that defines a volume therein for containing infused extract, the peripheral wall of the fluid chamber including an uppermost extract flow opening which traverses the peripheral wall, the uppermost extract flow opening defining at least one filter element;

ii) a peripheral seal disposed proximate an outer periphery of the plunger, the peripheral seal being configured to provide a seal between the plunger and the peripheral wall of the container, the uppermost extract flow opening being situated below the seal to define an annular gap disposed above the uppermost extract flow opening and defined between the peripheral wall of the fluid chamber and the peripheral wall of the container; and

iii) a handle attached to the fluid chamber for moving the plunger along the peripheral wall of the container.

6. The apparatus of claim 5 , wherein the peripheral seal and fluid chamber are discrete components.

7. The apparatus of claim 5 , wherein the at least one filter element includes a plurality of individual filter elements such that the infused extract flows through the plurality of individual filter elements along a flow path as the fluid chamber is advanced downwardly into the container.

8. The apparatus of claim 5 , wherein the bottom of the fluid chamber is closed.

9. The apparatus of claim 1 , wherein the at least one filter element of the uppermost extract flow opening is multi-staged.

10. The apparatus of claim 5 , wherein the at least one filter element of the uppermost extract flow opening is multi-staged.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 25, 2024
From: ESPRO, INC.; REGAL WARE, INC. (SOLE OWNER OF RW INNOVATIONS INC.)
To: DKK ENTERPRISES INC.
Reel/Frame 066369/0633 →
MERGER Recorded Jan 8, 2024
From: ESPRO, INC.
To: RW INNOVATIONS INC.
Reel/Frame 066222/0623 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 7, 2016
From: CONSTANTINE, BRUCE A.
To: ESPRO, INC.
Reel/Frame 039663/0051 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2015
From: MCLEAN, CHRISTOPHER R.
To: ESPRO, INC.
Reel/Frame 036608/0191 →
Continuity (4)
Continuation 14318371 · Jun 27, 2014
Division 12991425
Provisional Application 61127430 · May 12, 2008
Related Publication 20150182060A1 · Jul 2, 2015