A valve for selectively sealing and unsealing an opening in a bladder is disclosed. The valve includes a flange for mounting the valve around the opening in the bladder, a valve seat supported on the flange, and an air passageway. A spring plate is supported on the flange and spaced from the valve s
A valve for selectively sealing and unsealing an opening in a bladder is disclosed. The valve includes a flange for mounting the valve around the opening in the bladder, a valve seat supported on the flange, and an air passageway. A spring plate is supported on the flange and spaced from the valve seat. A floating valve disk is provided between the valve seat and the spring plate for movement towards and away from the valve seat to seal and unseal the opening in the bladder. A spring is provided to bias the floating valve disk towards the valve seat. Deflation lugs are provided to hold the floating valve disk away from the valve seat against the force of the spring. The floating valve disk is free to pivot but is prevented from pivoting to such an extent that movement of the floating valve disk is impeded as by binding.
대표청구항▼
1. A valve for selectively sealing and unsealing an opening in a bladder, said valve comprising a mounting flange for securing the valve to the bladder around the opening, said mounting flange having an air passageway extending therethrough,a valve seat supported on said mounting flange,a spring pla
1. A valve for selectively sealing and unsealing an opening in a bladder, said valve comprising a mounting flange for securing the valve to the bladder around the opening, said mounting flange having an air passageway extending therethrough,a valve seat supported on said mounting flange,a spring plate connected to said mounting flange and supported so that it is spaced a given distance from said valve seat,posts extending between said mounting flange and said spring plate,a floating valve disk having a central portion and a plurality of tabs extending outwardly from said central portion, said valve disk being positioned between said spring plate and said valve seat and supported for movement between a closed position where it is adjacent to said valve seat and an open position where it is spaced from said valve seat,a spring positioned between said valve disk and said spring plate and operable to bias said valve disk towards said valve seat, anddeflation lugs extending from said valve seat,wherein said floating valve disk is supported for rotational movement between a first position and a second position,wherein said floating valve disk tabs engage said deflation lugs when said floating valve disk is in said first rotational position and do not engage said deflation lugs when said floating valve disk is in said second rotational position, andwherein, when said deflation lugs engage said floating valve disk tabs, said deflation lugs are operable to support said floating valve disk in the open position against the force of said spring. 2. The valve claimed in claim 1 wherein a diameter of said central portion of said floating valve disk is greater than a distance between said valve seat and said spring plate. 3. The valve claimed in claim 2 wherein the diameter of said central portion of said floating valve disk is at least about twice the distance between said valve seat and said spring plate. 4. The valve claimed in claim 1 wherein said air passageway in said mounting flange is defined by an air inlet tube defining an air passageway and having a distal end and a proximal end, and wherein the air passageway at the distal end of said air inlet tube is larger than the air passageway at the proximal end of said air inlet tube. 5. The valve claimed in claim 1 wherein said spring plate further comprises a spring locator. 6. The valve claimed in claim 1 wherein said floating valve disk further comprises a spring recess. 7. The valve claimed in claim 1 wherein said floating valve disk further comprises a deflation actuator extending towards said mounting flange, said deflection actuator being accessible from outside of the bladder. 8. The valve claimed in claim 1 wherein the pressure of air delivered into the bladder is operable to move the floating valve disk from the closed position towards the open position against the force of said spring. 9. The valve claimed in claim 8 wherein air under a pressure of sixty pounds per square inch is operable to move the floating valve disk from the closed position. 10. The valve claimed in claim 1 further comprising a sealing disk supported on said floating valve disk so that said sealing disk engages said valve seat when said floating valve disk is in the closed position. 11. The valve claimed in claim 10 wherein said sealing disk comprises peripheral loops operable to engage said floating valve disk and to retain said sealing disk on said floating valve disk. 12. The valve claimed in claim 4 further comprising a cap configured for threaded engagement with said distal end of said air inlet tube. 13. A bladder having an opening and a valve for selectively sealing and unsealing the opening, said valve comprising a mounting flange having an air passageway extending therethrough, said mounting flange being secured to the bladder so that said air passageway is in communication with the opening in the bladder,a valve seat supported on said mounting flange,a spring plate connected to said mounting flange and supported so that it is spaced a given distance from said valve seat,posts extending between said mounting flange and said spring plate,a floating valve disk having a central portion and a plurality of tabs extending outwardly from said central portion, said floating valve disk being positioned between said spring plate and said valve seat and supported for movement between a closed position where it is adjacent to said valve seat and an open position where it is spaced from said valve seat,a spring positioned between said floating valve disk and said spring plate and operable to bias said floating valve disk towards said valve seat, anddeflation lugs extending from said valve seat,wherein said floating valve disk is supported for rotational movement between a first position and a second position,wherein said floating valve disk tabs engage said deflation lugs when said floating valve disk is in said first rotational position and do not engage said deflation lugs when said floating valve disk is in said second rotational position, andwherein, when said deflation lugs engage said floating valve disk tabs, said deflation lugs are operable to support said floating valve disk in the open position against the force of said spring. 14. The bladder claimed in claim 13 wherein said spring plate is operable to prevent the bladder from impeding the flow of air into or out of the opening. 15. The bladder claimed in claim 13 wherein a diameter of said central portion of said floating valve disk is greater than a distance between said valve seat and said spring plate. 16. The bladder claimed in claim 15 wherein the diameter of said central portion of said floating valve disk is at least about twice the distance between said valve seat and said spring plate. 17. The bladder claimed in claim 13 wherein said air passageway in said mounting flange is defined by an air inlet tube defining an air passageway and having a distal end and a proximal end, and wherein the air passageway at the distal end of said air inlet tube is larger than the air passageway at the proximal end of said air inlet tube. 18. The bladder claimed in claim 13 wherein the pressure of air delivered into the bladder is operable to move the floating valve disk from the closed position towards the open position against the force of said spring.
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이 특허에 인용된 특허 (16)
Song,Rong Jyh; Yen,Tsung Ping, Air valve device for an inflatable article.
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