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US 5,249,570 AGranted
Equine/canine hemoglobin-oxygen training mask
OwnerFrederick L. Coxinventor
Life of this patent
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Abstract
A breathing method and apparatus adapted for use on an animal comprising a generally cylindrically shaped device having one open end and one closed end; padding secured to the device within the circumference of the open end adapted to accept and contact the muzzle of the animal; ports formed in the periphery of the device for the passage of air therethrough; tubes removably secured to the ports to allow for greater or lesser breathing enhancement as a function of the size of the tubes.
Claims3
A breathing mask for use on an animal having a muzzle, said mask comprising:
- a truncated conical shaped mask body, said body having:
- a) an outer circumference;
- b) a large open end having a perimeter;
- c) a small closed end;
- d) a length and an average diameter;
- e) means for creating a clearance between said closed end and an animal's muzzle comprising said length being greater than said diameter;
- f) foam padding within the perimeter of said open end, said padding being a thick, closed cell, elastomeric material secured within the perimeter of said open end;
- g) two air ports in said mask body;
- h) fastening means attached to said outer circumference for securing said mask to an animal;
- and
- i) means for selectively increasing or decreasing the amount of oxygen-depleted air breathed by an animal wearing said mask comprising a pair of tubes attached to said ports, said means for selectively increasing or decreasing the amount of inhaled oxygen-depleted air comprising means to selectively change the length of said tubes from a long tube which increases the amount of rebreathed oxygen-depleted air inhaled to a shorter tube which decreases the amount of rebreathed oxygen-depleted air inhaled.
8 more elements
Dependencies are inferred from the claim text.