Other

Biowish Technologies, Inc.

David Bartoli

Richard C Rosene

Michael Stanford Showell

Lora J Rosene

Richard S Carpenter

John Gorsuch

Joseph Roberts

The present invention provides compositions and methods of reducing cyanuric acid levels in recreational water systems.

Method for reducing cyanuric acid in recreational water systems

An insulating cover for floating on liquid, such as in a spa, has an area for covering an area of the surface of the liquid. The cover generally comprises a first rectangle for covering a first area and a plurality of successive rectangular tubes connected to either the first rectangle or to a larger rectangle formed by the addition of a prior successive tube so as to form another rectangle for covering additional area. The amount of coverage area can be adjusted by selectively detaching tubes, such as by cutting them off, and by changing the amount of inflation of tubes such that the cover is adaptable to spas of different sizes. In an exemplary embodiment, tubes adjust both the width and length of the cover, and the cover is adapted for folding substantially in half when inflated.

Floating spa cover or adjustable size

A rifle having a rifled barrel and a cartridge having a bullet having a diameter, a length, a ballistic coefficient (BC), and a muzzle velocity (V) greater than 1250 ft/sec are related to achieve accuracy at very long range in that the twist of the rifling is substantially equal to: where: Vis the entry speed for the transonic, i.e. 1,250 ft/sec., and Vis Vminus V. A rifle barrel for receiving a bullet has rifling twist according to the relationship. A method uses the relationship to determine the rifling twist for a rifle barrel receiving a known bullet. Another method uses the relationship to design a cartridge for a known barrel rifling. The relationship is particularly applicable for bullets having a high BC, such as 0.325 or greater.

Rifle barrel and method of determining rifling twist for very long range accuracy

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Murrieta, CA, United States of America

David Bartoli