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:
Jun. 09, 1987
Filed:
Mar. 08, 1985
Applicant:
Inventors:
Helmut Grahmann, Friedberg, DE;
Horst Wittmann, Stadtbergen, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313493 ; 313318 ;
Abstract
To eliminate the necessity for a temperature-hardening cement to set the ular ends of paired discharge tubes into a plastic base, a holding element (7), including inwardly and downwardly directed barbs or tongues (8), is located within the base, the barbs or tongues engaging in depressions (3) or behind projections (3') of the pinch seal (2) normally formed at the end of the tubes. To additionally hold the tubes in position, a compression gasket (9) is interposed between a cover cap (6) and the bottom portion (5) of the base, the cover cap and the bottom portion being connected together by a snap fit.