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:
Sep. 08, 1981
Filed:
Aug. 31, 1979
Applicant:
Inventors:
Hiroshi Ota, Tokyo, JP;
Noboru Sakuma, Kamakura, JP;
Takeki Takarabe, Tokyo, JP;
Isao Takiguchi, Tokyo, JP;
Assignee:
Tokyo Keiki Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252512 ; 252513 ; 252514 ; 3439 / ; 3439 / ; 343909 ; 343758 ; 264 453 ; 264D / ; 264D / ; 264D / ; 428406 ; 2603 / ; 260 / ; 260 / ; 521 55 ;
Abstract
A lightweight mixed dielectric and a manufacturing method thereof is described, which is prepared by mixing metal-coated expanded particles of plastic, glass or silica, thin-wall metal pipes or metal coated thin-wall plastic pipes and uncoated expanded particles of plastic, glass or silica and then forming the resulting mixture into a desired shape by thermal expansion or by the use of binder with the provision that these uncoated expanded particles are only made of plastic when the forming step is carried out by thermal expansion.