초록 ▼

A valve assembly for admitting a tube or fuel into a vehicle fuel tank is disclosed. The valve assembly has a fixed housing with an inlet, an outlet, a middle section and an inner surface with an opening. At least one projection depends from the inner surface between the inlet and the outlet. The pr

A valve assembly for admitting a tube or fuel into a vehicle fuel tank is disclosed. The valve assembly has a fixed housing with an inlet, an outlet, a middle section and an inner surface with an opening. At least one projection depends from the inner surface between the inlet and the outlet. The projection deflects the tube toward and through the opening. A piston element, which is slidably mounted to the housing, is normally urged in a direction to close the outlet and the opening until the tube or fuel urges the piston element in an opposite direction.

대표청구항 ▼

A valve assembly for admitting a tube or fuel into a vehicle fuel tank is disclosed. The valve assembly has a fixed housing with an inlet, an outlet, a middle section and an inner surface with an opening. At least one projection depends from the inner surface between the inlet and the outlet. The pr

A valve assembly for admitting a tube or fuel into a vehicle fuel tank is disclosed. The valve assembly has a fixed housing with an inlet, an outlet, a middle section and an inner surface with an opening. At least one projection depends from the inner surface between the inlet and the outlet. The projection deflects the tube toward and through the opening. A piston element, which is slidably mounted to the housing, is normally urged in a direction to close the outlet and the opening until the tube or fuel urges the piston element in an opposite direction. e body. 8. The improved non-return valve of claim 7, wherein the valve body is manufactured from a non-magnetic material. 9. The improved non-return valve of claim 7, wherein the flow check assembly further comprises: a flow check assembly sealing surface configured to engage an interior valve body sealing surface; and a biasing spring in mechanical engagement with the flow check assembly, the biasing spring being configured to bias the flow check assembly sealing surface against the interior valve body sealing surface. 10. The improved non-return valve of claim 7, wherein the first magnetic device further comprises a permanent magnetic device in mechanical communication with the flow check assembly. 11. The improved non-return valve of claim 7, wherein the first magnetic device further comprises a portion of magnetic material affixed to a distal end of the flow check assembly, the portion of magnetic material being configured to react with the magnetic field of the magnetic member. 12. The improved non-return valve of claim 7, wherein the magnetic member further comprises a permanent magnet configured to be detachably positioned about an exterior of the improved non-return valve. 13. The improved non-return valve of claim 7, wherein the magnetic member is configured to impart a valve opening motion to the flow check assembly when the magnetic member is positioned adjacent the exterior portion of the valve body. 14. The improved non-return valve of claim 7, wherein the magnetic field of the second magnetic member is configured to impart at least one of a valve closing and a valve opening motion to the flow check assembly when positioned proximate the exterior portion of the valve body. 15. An improved non-return valve, comprising: a valve body having a substantially hollow interior portion; a flow check assembly positioned between a gas inlet and a gas outlet, the gas inlet and gas outlet being in communication with the substantially hollow interior portion; means for interacting with a magnetic field in mechanical communication with the flow check assembly and affixed to a distal end of the flow check assembly proximate the gas outlet when open; and means for generating a magnetic field detachably positioned proximate an exterior portion of the valve body, wherein the magnetic field of the means for generating a magnetic field is configured to impart motion to the flow check assembly via the means for interacting with a magnetic field when the means for generating a magnetic field is positioned proximate the exterior portion of the valve body. 16. A method for mechanically actuating a non-return valve, comprising: positioning a first magnetic device on a flow check assembly within the non-return valve and affixed to a distal end of the flow check assembly proximate a gas outlet when in an open position; positioning a second magnetic device proximate an exterior portion of the non-return valve, and wherein a magnetic field generated by the second magnetic device operates to actuate the flow check assembly to the open position. 17. The method of claim 16, wherein positioning a first magnetic device further comprises affixing a permanent magnet on the flow check assembly. 18. The method of claim 16, wherein positioning a second magnetic device further comprises detachably affixing a magnetic field source to the exterior portion of the non-return valve. 19. The method of claim 18, wherein detachably affixing the magnetic field source further comprises detachably affixing a permanent magnet. eng. 4:257-265 (1994). Ramsey, J.M. et al., "Microfabricated chemical measurement systems," Nature Med. 1:1093-1096 (1995). Seiler, K. et al., "Planar Glass Chips for Capillary Electrophoresis: Repetitive Sample Injection, Quantitation, and Separation Efficiency," Anal. Chem. 65:1481-1488 (1993). Seiler, K. et al., "Electroosmotic Pumping and Valveless Control of Fluid Flow Within a Manifold of Capillaries on a Glass Chip," Anal. Chem. 66:3485-3491 (1994).