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. 14, 1993
Filed:
May. 18, 1992
Applicant:
Inventor:
Harold K Sinclair, Louisville, KY (US);
Assignee:
Hi-Float Co., Inc., Louisville, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63H / ; B05D / ;
U.S. Cl.
CPC ...
446220 ; 427230 ; 428290 ; 244 31 ;
Abstract
Polyvinyl alcohol coatings used to improve the bouyant life of elastomeric balloons include polyvinyl alcohol and a water soluble carbohydrate extender such as dextrose, at levels up to four times the weight of the polyvinyl alcohol. The improved coatings of the present invention typically give double the floating life of the balloon under a wide range of humidities.