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:
Apr. 06, 1993
Filed:
Apr. 26, 1991
Yoshiro Fujii, Chiba, JP;
Adonis Inc., Tokyo, JP;
Dentsu Prox Inc., Tokyo, JP;
Abstract
An air floater comprises a balloon body which seals a gas therein and balancing means detachably attached to the balloon body. The balloon body comprises a film composed of a central layer made of ethylene-vinyl alcohol copolymer-resin, an aluminum evaporated layer provided outside the central layer, and a heated adhesive layer provided inside the central layer. The balancing means comprises a plurality of magnetic cards which are attracted by an attraction portion composed of a magnetic body attached to the balloon body. The plurality of magnetic cards includes one card having a reference weight matched with the buoyant force of the balloon body, first weight balancing cards having weight heavier by stages than the reference weight, and second weight balancing cards having weight lighter by stages than the reference weight. The balancing means may comprise sublimate sealed in a bag body. The balancing means also may comprise a balancer cover composed of an adhesive surface portion having a rear surface to be adhered to the balloon body, a cover portion, a folding portion for integrally connecting both the adhesive surface portion and the cover portion, a balancer composed of one sheet and capable of separating into a reference balancer and a regulating balancer, and a both-sided adhesive sheet for rendering the reference balancer to adhere to the surface of the adhesive surface portion. The air floater is adapted for use as a miniature airship.