The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 1982
Filed:
Jun. 02, 1980
Applicant:
Inventors:
Shigeaki Saita, Ohme, JP;
Manabu Nakaoka, Ohme, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
269 43 ; 269 63 ; 2692 / ; 269908 ; 29 2519 ; 29760 ;
Abstract
A circular fluorescent lamp manufacturing apparatus is constructed such that it can accomplish both the basing process and the seasoning process with the use of a single machinery according to the present invention. The lamp manufacturing apparatus is characterized in its head construction. The circular glass tube is based and seasoned by the two rotations of a turntable and by the four turns of 90 degrees of a paired circular glass tube supporters to be effected in that meanwhile so that the circular fluorescent lamps can be finished.