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:
May. 16, 1978
Filed:
Sep. 22, 1976
Tomiyasu Okamoto, Osaka, JA;
Tsunanori Nishimoto, Osaka, JA;
Kaoru Sawada, Osaka, JA;
Koji Hayakawa, Osaka, JA;
Tomomichi Kurihara, Osaka, JA;
Hitachi Shipbuilding & Engineering Co., Ltd., Osaka, JA;
Abstract
A secondary insulating barrier for protecting the hold of a ship below a spherical low temperature liquified gas storage tank installed therein comprises at least two layers of rigid foam synthetic resin sprayed on the hold plates and covered by a layer of glass mesh and adhesive. Alternatively, the layers of synthetic resin, glass mesh and adhesive are applied to plywood attached to the hold plates by joists, thus forming an air space between the secondary barrier and the hold plates. Where the hold plates have a multi-surface construction, laminated rigid urethane foam blocks are butted end-to-end and are bonded to each other and to the plywood sheets at the corners between adjacent hold plates, the spray-formed layers are applied between the blocks, and the whole is covered by a protective layer of glass mesh and adhesive.