Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB20222/54A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sylvania Electric Products IncfiledCriticalSylvania Electric Products Inc
Publication of GB758153ApublicationCriticalpatent/GB758153A/en
H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
H01J9/38—Exhausting, degassing, filling, or cleaning vessels
H01J9/395—Filling vessels
Landscapes
Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
Common Detailed Techniques For Electron Tubes Or Discharge Tubes
(AREA)
Abstract
758.153. Stuffing-box substitutes. SYLVANIA ELECTRIC PRODUCTS, Inc. July 9, 1954 [July 14, 1953], No. 20222/54. Class 122(5) [Also in Group XVIII] In a mercury dispensing device (see Group XVIII) for use in the manufacture of electric discharge lamps a tubulation 126 of the lamp is gripped by a resilient collar 64 to form a gas-tight seal with the device. The tubulation is released when a cap 72 in screw-threaded engagement with a boss 62 is rotated through gearing 80, 78 by a lever 82.
GB20222/54A1953-07-141954-07-09Improvements in and relating to mercury dispensing devices
ExpiredGB758153A
(en)