[미국특허]
Multi-layered gas-filled bladder for accommodating changes in fluid characteristics within a fluid delivery system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-055/04
F16L-055/053
출원번호
US-0477437
(2017-04-03)
등록번호
US-9933100
(2018-04-03)
발명자
/ 주소
Cogliati, Michael
Van Haaren, Christopher A.
출원인 / 주소
AMTROL LICENSING, INC.
대리인 / 주소
Tucker Ellis LLP
인용정보
피인용 횟수 :
0인용 특허 :
19
초록▼
An absorber for use in a fluid delivery system is disclosed which includes a housing defining an interior chamber, a connective fitting extending from the housing in fluid communication with the interior chamber for connecting the housing to the fluid delivery system, and at least one gas-filled bla
An absorber for use in a fluid delivery system is disclosed which includes a housing defining an interior chamber, a connective fitting extending from the housing in fluid communication with the interior chamber for connecting the housing to the fluid delivery system, and at least one gas-filled bladder or cell disposed within the interior chamber of the housing to accommodate changes in fluid characteristics, such as, for example, pressure and volume, within the fluid delivery system, the gas-filled bladder or cell having a predetermined pre-charge pressure and a multi-layered flexible polymeric shell including a plurality of successive relatively thin polymeric shell layers to inhibit the formation of leak paths through the shell in the event that a single shell layer fails.
대표청구항▼
1. An absorber for use in a fluid delivery system, comprising: a) a generally spherical housing having a generally semi-spherical upper housing portion and a generally semi-spherical lower housing portion defining an interior chamber;b) a connector extending radially outwardly from the lower housing
1. An absorber for use in a fluid delivery system, comprising: a) a generally spherical housing having a generally semi-spherical upper housing portion and a generally semi-spherical lower housing portion defining an interior chamber;b) a connector extending radially outwardly from the lower housing portion in fluid communication with the interior chamber for connecting the housing to the fluid delivery system; andc) at least one generally spherical gas-filled bladder disposed within the interior chamber of the housing and detached therefrom, to accommodate changes in fluid characteristics within the fluid delivery system, the at least one gas-filled bladder having a multi-layered flexible polymeric shell including a plurality of successive relatively thin polymeric shell layers to inhibit the formation of leak paths through the shell in the event that a single shell layer fails, and being constructed from two substantially hemi-spherical sections joined to one another along an equatorial seam. 2. An absorber as recited in claim 1, wherein the housing is connected to the fluid delivery system in such a manner so that the at least one generally spherical gas-filled bladder accommodates changes in fluid pressure within the fluid delivery system. 3. An absorber as recited in claim 1, wherein the housing is connected to the fluid delivery system in such a manner so that the at least one generally spherical gas-filled bladder accommodates changes in fluid volume within the fluid delivery system. 4. An absorber as recited in claim 1, wherein the housing is connected to the fluid delivery system in such a manner so that the at least one generally spherical gas-filled bladder accommodates changes in fluid volume within a reverse osmosis filtration system to provide a storage volume of fluid. 5. An absorber as recited in claim 1, wherein the housing has an inner diameter that is greater than an outer diameter of the at least one generally spherical gas-filled bladder. 6. An absorber as recited in claim 1, wherein the connector extending from the generally spherical housing is a threaded fitting. 7. An absorber as recited in claim 1, wherein the at least one generally spherical gas-filled bladder has a predetermined pre-charge pressure of between about 5 psi to about 40 psi. 8. An absorber as recited in claim 1, wherein the at least one generally spherical gas-filled bladder is pre-charged with air or nitrogen. 9. An absorber as recited in claim 1, wherein adjacent shell layers are formed from dissimilar materials. 10. An absorber as recited in claim 1, wherein the multi-layered polymeric shell includes successive polymeric layers formed from the group consisting of ethylene vinyl alcohol (EVOH), polyester, polyether, polyurethane, polyether urethane, polyester urethane, ethylenevinylacetate/polyethylene copolymer, polyester elastomer (Hytrel), ethylenevinylacetate/polypropylene copolymer; polyethylene, polypropylene, neoprene, natural rubber, dacron/polyester, polyvinylchloride, thermoplastic rubbers, nitrile rubber, butyl rubber, sulfide rubber, polyvinyl acetate, methyl rubber, buna N, buna S, polystyrene ethylene propylene, polybutadiene, polypropylene and silicone rubber. 11. An absorber as recited in claim 1, wherein the multi-layered polymeric shell includes as many as seventy-two successive polymeric layer. 12. An absorber as recited in claim 1, wherein the outer most polymeric layer in the multi-layered polymeric shell is a formed from a material other than ethylene vinyl alcohol EVOH due to its hygroscopic properties. 13. An absorber as recited in claim 1, wherein the at least one generally spherical gas-filled bladder has an overall shell thickness of about approximately 0.035″ after forming. 14. An absorber as recited in claim 1, wherein the multi-layered material from which the shell is formed has an initial thickness of about between 0.065″ and 0.075″ thick sheet. 15. An absorber as recited in claim 1, wherein plural generally spherical gas-filled bladders are disposed within the housing to provide redundancy for continuing operation in the event that one or more of the plural bladders fails. 16. An absorber as recited in claim 15, wherein the plural generally spherical gas-filled bladders have similar constructions. 17. An absorber as recited in claim 15, wherein the plural generally spherical gas-filled bladders have differing constructions. 18. An absorber for use in a fluid delivery system, comprising: a) a generally spherical housing having a generally semi-spherical upper housing portion and a generally semi-spherical lower housing portion defining an interior chamber;b) a threaded fitting extending radially outward from the lower housing portion in fluid communication with the interior chamber for connecting the housing to the fluid delivery system; andc) a generally spherical air-filled bladder disposed within the interior chamber of the housing and detached therefrom, to accommodate changes in water pressure and volume in the fluid delivery system, the bladder having a predetermined pre-charge pressure of about between 20 to 30 psi and a multi-layered flexible polymeric shell including a plurality of successive polymeric shell layers, wherein adjacent polymeric shell layers are formed from dissimilar polymeric materials to inhibit the formation of leak paths through the shell in the event that a single shell layer fails, wherein the generally spherical bladder has an outer diameter that is less than an inner diameter of the generally spherical housing, and wherein each bladder is constructed from two substantially hemi-spherical sections joined to one another along an equatorial seam. 19. An absorber as recited in claim 18, wherein the multi-layered polymeric shell includes successive polymeric layers formed from the group consisting of ethylene vinyl alcohol (EVOH), polyester, polyether, polyurethane, polyether urethane, polyester urethane, ethylenevinylacetate/polyethylene copolymer, polyester elastomer (Hytrel), ethylenevinylacetate/polypropylene copolymer; polyethylene, polypropylene, neoprene, natural rubber, dacron/polyester, polyvinylchloride, thermoplastic rubbers, nitrile rubber, butyl rubber, sulfide rubber, polyvinyl acetate, methyl rubber, buna N, buna S, polystyrene, ethylene propylene, polybutadiene, polypropylene and silicone rubber. 20. A pressure absorber as recited in claim 18, wherein the multi-layered polymeric shell includes as many as seventy-two successive polymeric layer. 21. A pressure absorber as recited in claim 18, wherein the outer most polymeric layer in the multi-layered polymeric shell is a formed from a material other than ethylene vinyl alcohol (EVOH) due to its hygroscopic properties. 22. A pressure absorber as recited in claim 18, wherein the bladder has an overall shell thickness of about approximately 0.035″ after forming. 23. A pressure absorber as recited in claim 18, wherein the multi-layered material from which the shell is formed has an initial thickness of about between 0.065″ and 0.075″ thick sheet.
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