IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0026588
(2004-12-30)
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등록번호 |
US-7658304
(2010-04-02)
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발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
10 |
초록
▼
An apparatus and method for discharging vapocoolants in stream or mist form includes the use of selected fluoroelastomers for valve parts to regulate discharge. The fluoroelastomers provide long-term stability to the vapocoolants to enable superior shelf life without minimal loss or contamination of
An apparatus and method for discharging vapocoolants in stream or mist form includes the use of selected fluoroelastomers for valve parts to regulate discharge. The fluoroelastomers provide long-term stability to the vapocoolants to enable superior shelf life without minimal loss or contamination of the vapocoolant. In addition, a filter is provided to remove contaminants from vapocoolant prior to passage through the nozzle opening.
대표청구항
▼
What is claimed: 1. An apparatus for discharge of vapocoolant in stream or mist form including a container for holding a pressurized supply of liquid vapocoolant, passageway means for conveying liquid vapocoolant from said supply thereof to a nozzle having a nozzle opening for emitting said vapocoo
What is claimed: 1. An apparatus for discharge of vapocoolant in stream or mist form including a container for holding a pressurized supply of liquid vapocoolant, passageway means for conveying liquid vapocoolant from said supply thereof to a nozzle having a nozzle opening for emitting said vapocoolant in stream or mist form, a valve for regulating flow of vapocoolant from said supply thereof through said passageway means to said nozzle, and a filter downstream of said valve and upstream of said nozzle opening for removing contaminants from vapocoolant conveyed to said nozzle, said passageway means extending to a nozzle mounting bore formed in said apparatus, said nozzle being a separate element from said apparatus and being mounted with an interference fit in said nozzle mounting bore, said nozzle including an open end, a side wall, a front wall and a nozzle bore, said nozzle bore extending from said open end to said front wall, said open end communicating with said passageway means for receiving vapocoolant, said side wall extending to form said front wall and provide said nozzle as a one-piece unitary element, said front wall closing said nozzle bore and having an opening extending through the front wall forming said nozzle opening, said filter being mounted in and transversely across said nozzle bore upstream of said nozzle opening, said nozzle and said filter comprising a two-piece assembly received in said nozzle mounting bore, said filter being tightly fitted in said nozzle bore in said nozzle and said nozzle side wall being engaged along substantially its entire extent by said nozzle mounting bore in said interference fit with said nozzle opening exposed for emitting vapocoolant, said nozzle bore having a uniform circular bore cross-sectional area for axial flow of said vapocoolant through substantially all of said bore cross-sectional area and said filter having a uniform circular filter cross-sectional area for axial flow of vapocoolant through substantially all of said filter cross-sectional area, and said nozzle bore cross-sectional area being substantially equal to and coextensive with said filter cross-sectional area. 2. The apparatus of claim 1, wherein said nozzle opening and said nozzle bore each have a cylindrical shape and are coaxially aligned. 3. The apparatus of claim 1, wherein said side wall and front wall are integrally formed of a single material. 4. The apparatus as in claim 1, wherein said side wall has a tubular shape and a uniform side wall thickness surrounding said nozzle bore, said front wall extends radially inwardly from said side wall and has a uniform front wall thickness that is substantially equal to said side wall thickness. 5. The apparatus of claim 4, wherein said front wall has a disk shape with said nozzle opening located at the center of the disk shape. 6. The apparatus of claim 1, wherein said filter has a cylindrical slug shape and a uniform circular cross-section extending between axially spaced flat filter faces, and each of said flat filter faces is substantially coextensive with said front wall. 7. The apparatus of claim 1, wherein said side wall, nozzle bore and filter each have a cylindrical shape, said filter has a filter length extending in the direction of vapocoolant flow and a filter width extending transversely across said direction of vapocoolant flow, and said filter length is substantially equal to said filter width. 8. The apparatus as in claim 1, wherein said filter comprises a sintered metal filter having a cylindrical slug shape, and said filter and said nozzle bore each have a uniform and substantially equal circular cross-section. 9. The apparatus of claim 1, wherein said nozzle opening is a cylinder having a diameter of from about 0.004″ to about 0.015″ and a length of about 0.02″, and said filter is sized to remove contaminants having a size as small as 50 microns. 10. The apparatus of claim 1, further including a button valve actuator carried by said container and arranged to actuate said valve, wherein said nozzle mounting bore is integrally formed in said actuator and said passageway means extends into said actuator to said nozzle mounting bore. 11. The apparatus as in claim 10, wherein said side wall has a tubular shape and a uniform side wall thickness surrounding said nozzle bore, said front wall extends radially inwardly from said side wall and has a uniform front wall thickness that is substantially equal to said side wall thickness. 12. The apparatus of claim 11, wherein said front wall has a disk shape with said nozzle opening located at the center of the disk shape. 13. The apparatus of claim 12, wherein said nozzle side wall and front wall are formed of a single material. 14. A button valve actuator for discharge of vapocoolants from a container holding a pressurized supply of liquid vapocoolant and having a valve operable to regulate the supply of liquid vapocoolant to said actuator, said actuator including passageway means for conveying liquid vapocoolant from said valve to a nozzle having a nozzle opening for emitting said vapocoolant in stream or mist form, and a filter downstream of said valve and upstream of said nozzle opening for removing contaminants from vapocoolant conveyed to said nozzle, said passageway means extending to a nozzle mounting bore formed in said actuator, said nozzle being a separate element from said actuator and being mounted with an interference fit in said nozzle mounting bore, said nozzle including an open end, a side wall, a front wall and a nozzle bore, said nozzle bore extending from said open end to said front wall, said open end communicating with said passageway means for receiving vapocoolant, said side wall extending to form said front wall and provide said nozzle as a one-piece unitary element, said front wall closing said nozzle bore and having an opening extending through the front wall forming said nozzle opening, said filter being mounted in and transversely across said nozzle bore upstream of said nozzle opening, said nozzle and said filter comprising a two-piece assembly received in said nozzle mounting bore, said filter being tightly fitted in said nozzle bore and said nozzle side wall being engaged along substantially its entire extent by said nozzle mounting bore in said interference fit with said nozzle opening exposed for emitting vapocoolant, said nozzle bore having a uniform circular bore cross-sectional area for axial flow of said vapocoolant through substantially all of said bore cross-sectional area and said filter having a uniform circular filter cross-sectional area for axial flow of vapocoolant through substantially all of said filter cross-sectional area, and said bore cross-sectional area being substantially equal to and coextensive with said filter cross-sectional area. 15. The actuator of claim 14, wherein said nozzle side wall and front wall are integrally formed of a single material. 16. The apparatus as in claim 14, wherein said side wall has a tubular shape and a uniform wall thickness surrounding said nozzle bore, said front wall is integrally formed with said side wall and has a uniform front wall thickness that is substantially equal to said side wall thickness. 17. The apparatus of claim 14, wherein said front wall has a disk shape with said nozzle opening being located at the center of the disk shape.
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