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:
Jul. 10, 1979
Filed:
Jul. 25, 1978
Masayasu Matsumoto, Zushi, JP;
Susumu Sakamoto, Yokohama, JP;
Nobufumi Matsudaira, Zushi, JP;
Kazuyoshi Iida, Yokohama, JP;
Yoshikazu Kondo, Tokyo, JP;
Kazuo Kondo, Yokohama, JP;
Haruo Watanabe, Chigasaki, JP;
Shosuke Suzuki, Zushi, JP;
Yasushi Onizaki, Yokohama, JP;
Bridgestone Tire Co., Ltd., Tokyo, JP;
Abstract
A perlite sound absorbing plate and a sound insulating wall constructed by arranging a number of said plates side by side and by assembling together into one integral body are disclosed. The plate is composed of a mixture including 1,000 cm.sup.3 by bulk volume of formed perlite particles each having a diameter of 0.1 to 7.0 mm, 100 to 140 g of cement, liquid rubber latex containing 5 to 20 g of solid ingredients and a suitable amount of water and produced by press molding with a compression ratio of 1.10 to 1.30. The wall is constructed by assembling a number of said plates each provided with a side groove with the aid of supporting columns and reinforcing plates, each having a ridge adapted to be engaged with the side groove of said plate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile