# US 2012/0074346 A1 · Corrective measures and devices for bi-stable flow phenomena in fluid valves > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2012/0074346 A1 - Document ID: US20120074346A1 - Status: Published application - Kind: A1 - Application number: 13/135,351 - Filed: 2011-07-01 - Published: 2012-03-29 - Earliest claimed: 2010-07-02 - Assignees: Enfield Technologies, LLC - Inventors: Daniel S. Cook - Web page: https://patentgrep.com/patent/US20120074346A1 ## CPC - A61M 16/20: Valves specially adapted to medical respiratory devices - A61M 16/204: {used for inhalation control} - F16K 1/36: Valve members (for double-seat valves F16K1/44 {; for butterfly valves F16K1/222, F16K1/223}) - F16K 1/42: Valve seats (for double-seat valves F16K1/44) - F16K 25/00: Details relating to contact between valve members and seats (movement of valve members other than for opening and closing F16K29/00) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} ## Abstract In accordance with an example embodiment of the present invention, a valve is disclosed. The valve includes a valve body, a seat, a poppet, and a shaped portion. The valve body has an inlet portion and an outlet portion. The seat is between the inlet portion and the outlet portion. The poppet is proximate the seat. The poppet is adapted to modulate fluid flow between the inlet portion and the outlet portion. The shaped portion is downstream of the seat. The shaped portion is adapted to direct fluid flow, reduce cross flow interference, and allow for substantially parallel fluid flow jets at a majority of the inlet portion and the outlet portion when fluid is flowing through the valve. ## Claims ### Claim 1 A valve comprising: a valve body having an inlet portion and an outlet portion; a seat between the inlet portion and the outlet portion; a poppet proximate the seat, wherein the poppet is adapted to modulate fluid flow between the inlet portion and the outlet portion; and a shaped portion downstream of the seat, wherein the shaped portion is adapted to direct fluid flow, reduce cross flow interference, and allow for substantially parallel fluid flow jets at a majority of the inlet portion and the outlet portion when fluid is flowing through the valve. ### Claim 2 (depends on 1) A valve as in claim 1 wherein the poppet comprises a poppet end portion, and wherein the poppet end portion comprises the shaped portion. ### Claim 3 (depends on 2) A valve as in claim 2 wherein the poppet end portion is integrally formed with the poppet. ### Claim 4 (depends on 2) A valve as in claim 2 wherein the poppet end portion is a separate member configured to be removable from the poppet. ### Claim 5 (depends on 1) A valve as in claim 1 wherein the valve body comprises the shaped portion. ### Claim 6 (depends on 5) A valve as in claim 5 wherein the shaped portion comprises a constriction section having a general torus and conical shape. ### Claim 7 (depends on 1) A valve as in claim 1 wherein the shaped portion comprises a general bullet shape. ### Claim 8 (depends on 1) A valve as in claim 1 wherein the shaped portion is adapted to allow for at least two distinct flow regimes. ### Claim 9 (depends on 1) A valve as in claim 1 wherein the shaped portion comprises a general cylinder shape, a general cone shape, a general torus shape, and/or a general revolved arc shape. ### Claim 10 A valve comprising: a valve body having an inlet portion and an outlet portion; a seat between the inlet portion and the outlet portion; a poppet having a base section and an extension section, wherein the base section is adapted to modulate fluid flow between the inlet portion and the outlet portion, wherein the extension section extends downstream of the seat, and wherein a length of the extension section is greater than a length of the base section. ### Claim 11 (depends on 10) A valve as in claim 10 wherein the wherein a length of the extension section in a direction of fluid flow is greater than a length of the base section in the direction of fluid flow. ### Claim 12 (depends on 10) A valve as in claim 10 wherein the extension section is adapted to direct fluid flow, reduce cross flow interference, and allow for substantially parallel fluid flow jets at a majority of the inlet portion and the outlet portion when fluid is flowing through the valve. ### Claim 13 (depends on 10) A valve as in claim 10 wherein the extension section comprises a general bullet shape. ### Claim 14 (depends on 10) A valve as in claim 10 wherein the valve body comprises a shaped portion downstream of the seat. ### Claim 15 (depends on 10) A valve as in claim 10 wherein the extension section comprises a general cylinder shape, a general cone shape, a general torus shape, and/or a general revolved arc shape. ### Claim 16 A valve comprising: a valve body having an inlet portion and an outlet portion, and a downstream section; a seat between the inlet portion and the outlet portion; a poppet proximate the seat, wherein the poppet is adapted to modulate fluid flow between the inlet portion and the outlet portion; wherein the downstream section is between the seat and an outlet of the valve, and wherein the downstream section is adapted to direct fluid flow, reduce cross flow interference, and allow for substantially parallel fluid flow jets at a majority of the inlet portion and the outlet portion when fluid is flowing through the valve. ### Claim 17 (depends on 16) A valve as in claim 16 wherein the downstream section comprises a general torus and conical shape. ### Claim 18 (depends on 16) A valve as in claim 16 wherein the downstream section comprises an expanding section having a general conical shape. ### Claim 19 (depends on 16) A valve as in claim 16 wherein the downstream section comprises a contracting section having a general curvilinear shape. ### Claim 20 (depends on 16) A valve as in claim 16 wherein the poppet further comprises a shaped portion downstream of the seat, wherein the shaped portion is adapted to direct fluid flow, reduce cross flow interference, and allow for substantially parallel fluid flow jets at a majority of the inlet portion and the outlet portion when fluid is flowing through the valve.