Total body volume meter
First Claim
1. A total body volume meter for measuring body volume of an individual comprising:
- body tank means for holding a fluid therein, said body tank means having an enlarged upper opening for receiving said individual therethrough;
uniform cross-sectional vertical tank means connected to said body tank means through conduit means;
extension means of said enlarged upper opening, said extension means having a cross section approximately equal to said vertical tank means;
a plurality of manometer means connected to said body tank means and said vertical tank means; and
control means interconnected along said conduit means between said body tank means and said vertical tank means, levels of said fluid to be measured in said vertical tank means and said extension means by said manometer means before and after said individual enters said body tank means being adjusted by said control means.
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Accused Products
Abstract
The present apparatus shows a device for measuring the total volume displaced by a human body. A tank portion has an enlarged upper opening for an individual to enter the tank therethrough. Thereafter, while the individual is in a sitting position inside of the tank, the enlarged upper opening is closed with the individual'"'"'s head extending upward into an open ended cylinder. A tall cylinder of equal diameter with the open ended cylinder is connected to a control console which pumps the water level inside of the tank up to a predetermined point inside of the open ended cylinder. Thereafter, if the individual lowers his head below the water level by releasing a seat on which the individual is sitting, an accurate reading of the column of water displaced can be obtained on a manometer and compared with a prior reading before entering the tank. By determining the total volume of the columns of water displaced in the tall cylinder and the open ended cylinder, the total volume of water displaced by the individual can be accurately obtained.
24 Citations
14 Claims
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1. A total body volume meter for measuring body volume of an individual comprising:
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body tank means for holding a fluid therein, said body tank means having an enlarged upper opening for receiving said individual therethrough; uniform cross-sectional vertical tank means connected to said body tank means through conduit means; extension means of said enlarged upper opening, said extension means having a cross section approximately equal to said vertical tank means; a plurality of manometer means connected to said body tank means and said vertical tank means; and control means interconnected along said conduit means between said body tank means and said vertical tank means, levels of said fluid to be measured in said vertical tank means and said extension means by said manometer means before and after said individual enters said body tank means being adjusted by said control means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of measuring total body volume of an individual using a vertical tank of a given cross-sectional area and a body tank with an upper extension of said given cross-sectional area, said method consisting of the following steps:
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filling said vertical tank with a substantial amount of a fluid and said body tank with said fluid until level of said fluid begins to raise in said upper extension; first measuring heights of fluid levels in said vertical tank and said upper extension; first recording a first sum of said first measured heights; inserting said individual in said body tank and immersing said individual below said fluid level; second measuring heights of said fluid levels in said vertical tank and said upper extension; subtracting said first sum of said first measured heights from a second sum of said second measured heights to give a total height change of fluid levels; and expressing said cross-sectional area of the vertical tank together with said total height change of fluid levels in terms of total body volume of said individual. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification