Electric lamp and discharge devices – With gas or vapor – Envelope with particular structure
Patent
1990-12-19
1992-06-30
O'Shea, Sandra L.
Electric lamp and discharge devices
With gas or vapor
Envelope with particular structure
313318, 313579, 313580, H01J 6136, H01J 1716, H01K 122
Patent
active
051266318
ABSTRACT:
For mounting a lamp that comprises a glass envelope including a seal and a glass exhaust tube having a tip projecting from the seal, there is provided a base having a cavity for receiving the seal and the exhaust-tube tip. Within the cavity about the seal and the tip is a hard cement for fixedly positioning the envelope within the cavity. Surrounding the tip and located between the tip and the adjacent cement is a thin layer of soft material that can yield in response to forces developed thereon by thermal expansion and contraction of the cement, thereby protecting the tip from being cracked by these forces. The hard cement extends into contact with the glass seal about a substantial portion of the seal's exterior surface so that the hard cement is able to fixedly position the envelope relative to the base without interference from the softer material about the tip.
REFERENCES:
patent: 586055 (1897-07-01), Olan
patent: 4126810 (1978-11-01), Cox
patent: 4130774 (1978-12-01), Cosco et al.
Sketch with labels of a mounted lamp delivered by General Electric Company to a purchaser prior to May 15, 1988.
Corwin Stanley C.
General Electric Company
Hawranko George E.
Jacob Fred
O'Shea Sandra L.
LandOfFree
Cement-type mount for a lamp including means for protecting the does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cement-type mount for a lamp including means for protecting the , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cement-type mount for a lamp including means for protecting the will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1866088