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:
Dec. 06, 1977
Filed:
Aug. 23, 1976
David D Miller, Miami Springs, FL (US);
American Safety Equipment Corporation, Encino, CA (US);
Abstract
In a double-tubed life vest with the inside marginal edges of the tubes fastened to each other temporary connecting members on the tubes releasably hold the outside marginal edges of the tubes together. The temporary connecting members are released when the gas pressure in the vest is greater than a given pressure. The gas occupies a first volume when the temporary connecting members are holding the corresponding sections of the tubes together such that the first volume of gas at the first pressure provides sufficient buoyancy to the life vest to support a body. The gas can occupy a second volume when the temporary connecting members are released to allow the gas to occupy a greater volume such that the addition of more gas in the tubes provides greater buoyancy to the body.