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:
Aug. 20, 1985
Filed:
Sep. 28, 1983
Jisaburou Maruyama, Yokosuka, JP;
Sumio Fukayama, Yokohama, JP;
Masanobu Miyake, Yokosuka, JP;
Yoshimi Watanabe, Yokohama, JP;
Yoshinori Eguchi, Kawasaki, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
An incandescent lamp assembly has a generally elliptical vitreous envelope including a cylindrical neck, stem mount with a pair of lead-in wires, and a screw-in base capped on the cylindrical portion of the envelope. The cylindrical neck of the envelope has a circular protruded ring along the entire periphery thereof and in the corresponding position of the screw-in base is provided a concave channel, for a push-in coupling. A flared rim is integrally formed with the concave channel and extends gradually outwardly to bear along the envelope, giving elastic deformation to the upper half of the screw-in base. The lead-in wire is interposed between the cylindrical neck and the screw-in base and fixedly positioned at the circular protruded ring. For prevention of relative rotational movement, heat resistant silicone rubber is applied on the circular protruded ring.