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US 5,209,226 AGranted
Underwater respiratory device
OwnerMark D. Goodleyinventor
Life of this patent
Estimating the term…
Abstract
An air supply system which communicates between the compressed air supply and the mouth of a scuba diver utilizes a sealing cup which surrounds the mouth to define a breathing/microphone chamber into which the diver can speak. In addition to this chamber into which the diver can breath, a mouthpiece on an airpipe which passes through the sealing cup can be quickly forced into the mouth for direct breathing through the mouth into the air tube, bypassing the breathing chamber defined by the sealing cup in the event this chamber becomes flooded.
Claims11
An air delivery apparatus for delivering air to the mouth of a diver comprising:
- (a) a sealing cup having a sealing lip to seal around the mouth of the diver and define a breathing chamber adjacent to the mouth;
- (b) a mouthpiece disposed at least partially within said breathing chamber and being movable from a position engaged in the mouth for delivering air thereto to a position retracted from the mouth exposing the mouth to communication with said breathing chamber;
- and,
- (c) an air delivery system for connecting between an external air supply and both said breathing chamber and said mouthpiece, such that air is provided to the diver through said mouthpiece when same is in the mouth, and through said breathing chamber when said mouthpiece is retracted from the mouth;
- (d) said air delivery system including a substantially rigid airpipe passing through said sealing cup to said mouthpiece and communicating with said breathing chamber through said mouthpiece when said mouthpiece is retracted from the mouth;
- (e) said sealing cup including a substantially flexible diaphragm which defines said breathing chamber, said diaphragm defining said sealing lip and being sealed around said airpipe;
- and,
- (f) said sealing cup including a reinforcing frame attached to said diaphragm adjacent said sealing lip to substantially maintain the shape of said diaphram around the mouth, said airpipe being slidable in a longitudinal direction substantially free of radial play with respect to said frame.
5 more elements
An air delivery apparatus for delivering air to the mouth of a diver comprising:
- (a) a sealing cup for sealing around the mouth of the diver and defining a breathing chamber adjacent to the mouth;
- (b) said sealing cup including a rigid frame and means for retaining said rigid frame with said sealing cup to the head of a diver;
- (c) a diver's mouthpiece;
- (d) an airpipe connected to said mouthpiece and extending forward from the diver through said sealing cup to connect to an air supply, said mouthpiece being retractable on said airpipe from the mouth of the diver into said sealing cup such that said mouthpiece communicates with said breathing chamber to provide air to a diver without the mouthpiece being in the mouth of the diver;
- and,
- (e) guide means mounting said airpipe to said sealing cup substantially writing the motion of said airpipe to a longitudinal direction.
3 more elements
An air delivery apparatus for delivering air to the mouth of a diver comprising:
- (a) a sealing cup for sealing around the mouth of the diver and defining a breathing chamber adjacent to the mouth;
- (b) means for retaining said sealing cup to the head of a diver;
- (c) a diver's mouthpiece;
- (d) an airpipe connected to said mouthpiece and extending forward from the diver through said sealing cup to connect to an air supply, said mouthpiece being retractable on said airpipe from the mouth of the diver into said sealing cup such that said mouthpiece communicate with said breathing chamber to provide air to a diver without the mouthpiece being in the mouth of the diver;
- (e) said sealing cup including a flexible diaphragm defining a sealing lip sealing around the mouth of the user such that said diaphram deforms when said mouthpiece is retracted on said pipe from the mouth to continuously maintain said breathing chamber airtight as said mouthpiece is moved into or out of the mouth;
- (f) an outer shell rigid with said airpipe and overfitting said breathing cup and defining a longitudinally operable detent structure to establish at least two different longitudinal spacings of said airpipe, mouthpiece and shell relative to the face of the diver.
3 more elements
An air delivery apparatus for delivering air to the mouth of a diver comprising:
- (a) a sealing cup for sealing around the mouth of the diver and defining a breathing chamber adjacent to the mouth;
- (b) said sealing cup including a rigid frame and means for retaining said frame and sealing cup to the head of a diver;
- (c) a diver's mouthpiece;
- (d) an airtube connected to said mouthpiece and extending forward from the diver through said sealing cup to connect to an air supply;
- (e) rigid guide means mounted to said airpipe for guiding the airpipe through said sealing cup to make said mouthpiece retractable with said airpipe from the mouth of the diver into said sealing cup into a stable position, said guide means further for supporting said airpipe and mouthpiece on said guide means and frame such that said airpipe and mouthpiece will maintain their orientation relative to said rigid frame without assistance from the diver.
2 more elements
Dependencies are inferred from the claim text.