US 7,585,086 B2
Thermoplastic light enclosure having upper and lower sealed parts
Jürgen Vonhoff, Osnabrück (Germany)
Assigned to IBV Holding GmbH, Osnabrück (Germany)
Appl. No. 10/565,639
PCT Filed Jul. 10, 2004, PCT No. PCT/EP2004/007619
§ 371(c)(1), (2), (4) Date Oct. 30, 2006,
PCT Pub. No. WO2005/015082, PCT Pub. Date Feb. 17, 2005.
Claims priority of application No. 103 33 980 (DE), filed on Jul. 25, 2003.
Prior Publication US 2007/0108666 A1, May 17, 2007
Int. Cl. F21V 21/00 (2006.01)
U.S. Cl. 362—217.01  [362/222; 362/263; 362/267; 362/158] 23 Claims
OG exemplary drawing
 
1. A luminaire for at least one elongated gas-discharge lamp, the luminaire comprising:
an enclosure comprised of a transparent lower part and a transparent upper part, wherein the lower part is adapted to be mounted in a fixed position;
electrical gear arranged in the lower part;
wherein the lower part and the upper part are assembled to a closed form thus providing a protection against sprayed or splashed water;
wherein the lower part and the upper part consist of thermoplastic material and are made from same batches of the thermoplastic material;
wherein the upper part and the lower part each have a circumferentially extending rim extending about an entire circumference of the upper and lower parts, respectively, wherein the rims overlap one another and a first one of the rims has a first sealing groove and a second one of the rims has a second sealing groove, wherein the first and second sealing grooves each extend about the entire circumference of the upper and lower parts, respectively, and together delimit an intervening space extending about the entire circumference of the upper and lower parts, respectively, and having a circular cross-section and wherein the enclosure further comprises a ring seal that is arranged in the intervening space of the first and second sealing grooves.