[특허]In-grade lighting fixture

[미국특허] In-grade lighting fixture 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F21V-021/021
출원번호	UP-0016770 (2008-01-18)
등록번호	US-7524078 (2009-07-01)
발명자 / 주소	Pressel, Matthew Waltz, Lew
출원인 / 주소	Genlyte Thomas Group LLC
대리인 / 주소	Bruggeman, Chad D.
인용정보	피인용 횟수 : 3 인용 특허 : 86

초록 ▼

An in-grade light fixture has a lamp compartment having an open upper end with a lens cover covering the open upper end. The lens cover may have a joint connection to permit travel from an open configuration to a closed configuration. A junction box is adjacent to the lens cover along an upper portion of the compartment. If a ballast is utilized for proper supply of power to the lamp, a ballast compartment is adjacent an open lower end of the lamp compartment. A hydraulic isolation chamber extends vertically downward from the junction box to the sealed ballast compartment. The hydraulic isolation chamber is filled with a potting material and prevents wicking of moisture into the ballast compartment.

대표청구항 ▼

We claim: 1. An in-grade light fixture comprising: a lens cover having a lens disposed over a lamp compartment, said lamp compartment containing a lamp; a junction box cover adjacent to said lens cover and disposed over a junction box compartment; a joint mechanism on said lens cover and having an arm interacting with a socket of said lamp compartment permitting rotational and translational movement of said lens cover from a closed position to an open position relative to said lamp compartment; and a seal between said lens and said lamp compartment to fully seal said lamp compartment when said lens cover is in said closed position relative to said lamp compartment. 2. The in-grade light fixture as in claim 1 wherein said socket comprises a cam surface. 3. The in-grade light fixture as in claim 2 wherein said arm further comprises opposing pins in traveling engagement with a plurality of said cam surfaces. 4. The in-grade light fixture as in claim 1 wherein said arm of said lens cover is releasably secured within said socket of said lamp compartment. 5. The in-grade light fixture as in claim 1 further comprising a securing mechanism substantially opposite said joint mechanism sealingly engaging said lens cover to said lamp compartment when said lens cover is in a closed position relative to said lamp compartment. 6. The in-grade light fixture as in claim 1 wherein said lens cover rotates away from said lamp compartment and translates radially within said socket to said open position. 7. The in-grade light fixture as in claim 1 further comprising a ballast compartment adjacent said lamp compartment. 8. The in-grade light fixture as in claim 7 further comprising a ballast cover in sealingly engagement with said ballast compartment. 9. The in-grade light fixture as in claim 1 wherein said lens cover rotates to said open position to greater than about 90 degrees relative to said closed position. 10. The in-grade light fixture as in claim 1 wherein said joint mechanism is a pin-in-slot mechanism. 11. An in-grade light fixture comprising: a compartment having a cavity for receiving a lamp, and a socket adjacent said cavity having an elongated cam mechanism; a lens cover disposed over said cavity; and an arm projecting from said lens cover having opposing projections, said opposing projections engage along said elongated cam mechanism of said socket to permit said lens cover to travel from a closed position to an open position relative to said compartment. 12. The in-grade light fixture as in claim 11 wherein said elongated cam mechanism comprises opposing cam surfaces below a top wall forming a travel channel through which said opposing projections of said arm travel. 13. The in-grade light fixture as in claim 12 wherein said lens cover travels translationally and rotationally relative to said compartment as said opposing projections travel over said cam surface. 14. The in-grade light fixture as in claim 11 wherein said lens cover rotates to open to greater than about 90 degrees relative to said closed position. 15. The in-grade light fixture as in claim 11 wherein said socket has an opening such that said lens cover is releasably secured with said socket. 16. The in-grade light fixture as in claim 15 wherein said socket opening is a slotted aperture to allow disengagement of said arm. 17. The in-grade light fixture as in claim 11 further comprising a seal between said lens cover and said compartment forming a sealed engagement between said lens cover and said compartment in the closed position. 18. An in-grade light fixture with a rotational lens ring, comprising: an in-grade housing having lamp and an upper housing rim, said rim receiving a lens surrounded by a lens ring; said lens ring having a projecting arm rotationally received in an arm receptacle at said rim allowing said lens ring to rotate from a sealed position to an open position; said arm receptacle having an elongated cam surface translationally receiving said arm allowing said lens ring to translate from said sealed position forward a removed position; and at least one fastener substantially opposite said arm extending through said lens ring and into said rim. 19. The in-grade light fixture as in claim 18 wherein said lens ring rotates to said open position to greater than about 90 degrees relative to said upper housing rim. 20. The in-grade light fixture as in claim 18 wherein said arm releasably engages said arm receptacle. 21. The in-grade light fixture as in claim 18 wherein said arm further comprises opposing pins traveling along a plurality of said cam surfaces. 22. The in-grade light fixture as in claim 21 wherein said arm receptacle has a slotted aperture releasably engaging said opposing pins of said arm. 23. The in-grade light fixture as in claim 21 wherein said opposing pins of said arm are rotatably fixed. 24. The in-grade light fixture as in claim 18 further comprising a gasket between said lens and said rim in said sealed position. 25. The in-grade light fixture as in claim 18 further comprising a visual sealing engagement between said lens and said rim in said sealed positioned. 26. The in-grade light fixture as in claim 18 wherein said cam surface is concave. 27. An in-grade fixture comprising: an in-grade housing having an inner cavity with an upper housing rim, said housing rim receiving a cover disposed over said inner cavity; said cover having a projecting arm releaseably received in an arm receptacle at said housing rim allowing said cover to rotate and translate from a sealed position to an open position relative to said housing rim and be moved away from said housing rim and removed; and said housing having a sealing engagement between said cover and said housing rim to fully seal said inner cavity when said cover is in said sealed position relative to said housing rim. 28. The in-grade fixture as in claim 27 wherein said inner cavity has a plurality of compartments hydraulically isolated from each other.

이 특허에 인용된 특허 (86) 인용/피인용 타임라인 분석

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[미국특허] In-grade lighting fixture 원문보기

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