# US 8,539,994 B2 · Valve with biasing member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,539,994 B2 - Document ID: US8539994B2 - Status: Granted - Kind: B2 - Application number: 12/496,895 - Filed: 2009-07-02 - Published: 2010-09-09 - Granted: 2013-09-24 - Earliest claimed: 2009-03-09 - Assignees: Piramal Critical Care, Inc. - Applicants: Michael Cuzydlo - Inventors: Michael Cuzydlo - Web page: https://patentgrep.com/patent/US8539994B2 ## CPC - A61M 16/186: {Locking systems} - 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)} ## Abstract An apparatus and system for transferring a liquid, such as a liquid anesthetic, from a reservoir to a machine while minimizing the release of the liquid to the surrounding environment. The apparatus can include a frame member defining a frame passage extending from a first end of the frame member to a second end of the frame member and a nozzle connected to the frame member. The nozzle can be moveable between a first position and a second position relative to the frame member, and can define a plug member configured to block the second end of the frame passage when the nozzle is in the first position. The apparatus can further include a biasing member connected to the frame member and the nozzle. ## Claims ### Claim 1 An apparatus comprising: a frame member having a base and a spout, the base adapted to be secured to an opening of a reservoir and the spout having at least one external thread, wherein a through-hole extends through the base and the spout; a nozzle having an inner surface with at least one internal thread that is adapted to engage with the at least one external thread on the spout, and an outer surface which is adapted to couple with a machine, wherein the nozzle is moveable between a first position and a second position relative to the frame member; a plug member fixedly attached to the inner surface of the nozzle, wherein the plug member is adapted to block the through-hole when the nozzle is in the first position; and a biasing member coupled to the frame member and the nozzle to thereby bias the nozzle relative to the frame member. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the base of the frame member is adapted to be secured to an opening of the reservoir by a gasket and a crimp band. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the nozzle surrounds the spout. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the machine is an anesthetic device. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the outer surface of the nozzle has at least one external thread for engaging with at least one internal thread of the machine. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the machine is a vaporizer. ### Claim 7 (depends on 1) The apparatus of claim 1, further comprising a sealing member in contact with the nozzle. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the sealing member is an O-ring. ### Claim 9 (depends on 1) The apparatus of claim 1, further comprising a sealing member in contact with the frame member and the nozzle. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein the sealing member is an O-ring. ### Claim 11 (depends on 1) The apparatus of claim 1, wherein the biasing member is a spring. ### Claim 12 (depends on 1) The apparatus of claim 1, wherein the biasing member biases the frame member relative to the nozzle in a direction causing the nozzle to be in the first position. ### Claim 13 (depends on 1) The apparatus of claim 1, wherein the base of the frame member is crimped on to a reservoir. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein the plug member extends into an aperture formed by the inner surface of the nozzle. ### Claim 15 (depends on 1) The apparatus of claim 1, wherein the nozzle has an aperture defined by an inner surface of the nozzle, and the plug member extends into the aperture to block the through-hole when the nozzle is in the first position. ### Claim 16 (depends on 1) The apparatus of claim 1, wherein the through-hole extends through the nozzle when the nozzle is in the second position. ### Claim 17 A system, comprising: a reservoir; and an apparatus connected to the reservoir, wherein the apparatus comprises: a frame member having a base and a spout, the base adapted to be secured to an opening of the reservoir and the spout having at least one external thread, wherein a through-hole extends through the base and the spout; a nozzle having an inner surface with at least one internal thread that is adapted to engage with the at least one external thread on the spout, and an outer surface which is adapted to couple with a machine, wherein the nozzle is moveable between a first position and a second position relative to the frame member; a plug member fixedly attached to the inner surface of the nozzle, wherein the plug member is adapted to block the through-hole when the nozzle is in the first position; and a biasing member coupled to the frame member and the nozzle to thereby bias the nozzle relative to the frame member. ### Claim 18 (depends on 17) The system of claim 17, wherein the base of the frame member is adapted to be secured to an opening of the reservoir by a gasket and a crimp band. ### Claim 19 (depends on 17) The system of claim 17, wherein the biasing member biases the frame member relative to the nozzle in a direction causing the nozzle to be in the first position. ### Claim 20 (depends on 17) The system of claim 17, wherein the machine is a vaporizer. ### Claim 21 (depends on 17) The system of claim 17, wherein the base of the frame member is crimped on to the reservoir. ### Claim 22 (depends on 17) The system of claim 17, wherein the plug member extends into an aperture formed by the inner surface of the nozzle. ### Claim 23 (depends on 17) The system of claim 17, wherein the nozzle has an aperture defined by an inner surface of the nozzle, and the plug member extends into the aperture to block the through-hole when the nozzle is in the first position. ### Claim 24 (depends on 17) The system of claim 17, wherein the through-hole extends through the nozzle when the nozzle is in the second position. ### Claim 25 (depends on 17) The system of claim 17, wherein the nozzle surrounds the spout. ### Claim 26 (depends on 17) The system of claim 17, wherein the machine is an anesthetic device. ### Claim 27 (depends on 17) The system of claim 17, wherein the outer surface of the nozzle has at least one external thread for engaging with at least one internal thread of the machine. ### Claim 28 (depends on 17) The system of claim 17, further comprising a sealing member in contact with the nozzle. ### Claim 29 (depends on 28) The system of claim 28, wherein the sealing member is an O-ring. ### Claim 30 (depends on 17) The system of claim 17, further comprising a sealing member in contact with the frame member and the nozzle. ### Claim 31 (depends on 30) The system of claim 30, wherein the sealing member is an O-ring. ### Claim 32 (depends on 17) The system of claim 17, wherein the biasing member is a spring.