Electric lamp and discharge devices – With gas or vapor – Envelope with particular structure
Reexamination Certificate
2006-06-26
2009-11-10
Williams, Joseph L (Department: 2889)
Electric lamp and discharge devices
With gas or vapor
Envelope with particular structure
C313S025000, C313S493000, C313S318020
Reexamination Certificate
active
07615930
ABSTRACT:
A low-wattage, high intensity arc discharge electric lamp (10) has a thick-walled outer envelope (12) extending along a longitudinal axis (14) and has a bulbous portion (16) and a narrow, cylindrical base (18) including oppositely disposed grooves (20) extending parallel to the longitudinal axis (14). An electrically conductive mounting member (22) has grippers (24) formed on ends (26) thereof to engage the grooves (20). The electrically conductive member (22) has a center portion (28) with a U-shaped segment (30) that is positioned within the base. An arc tube assembly (32) comprises an arc tube (34) having axially extending electrode lead-ins (36, 38) sealed within a shroud (40). The shroud (40) has parallel electrical connections (42, 44) extending therefrom. A first of the electrical connections (42) is electrically and mechanically fixed to the U-shaped segment (30) of the electrically conductive mounting member (22) and a second of the electrical connections (44) is electrically insulated from the mounting member (22) by an insulator (23). A threaded shell (46) is fixed to the base (18), the shell (46) having a first electrical contact (48) electrically connected to the electrically conductive mounting member (22) and a second electrical contact (50) electrically connected to the second of the electrical connections (44).
REFERENCES:
patent: 4281274 (1981-07-01), Bechard et al.
patent: 4499396 (1985-02-01), Fohl et al.
patent: 4500948 (1985-02-01), Blaisdell et al.
patent: 4580989 (1986-04-01), Fohl et al.
patent: 4779021 (1988-10-01), Haraden
patent: 4888517 (1989-12-01), Keeffe et al.
patent: 5051657 (1991-09-01), Bazin et al.
patent: 2003/0057834 (2003-03-01), Kling
patent: 2006/0158083 (2006-07-01), Hrubowchak et al.
Collins Steven A.
Hrubowchak David M.
Oberlies Paul W.
McNeill William H.
Osram Sylvania Inc.
Williams Joseph L
LandOfFree
Shrouded arc discharge lamp suitable for downlighting... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shrouded arc discharge lamp suitable for downlighting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shrouded arc discharge lamp suitable for downlighting... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4075445