Gas flow device
OwnerLeNoir E. Zaiser, Kevin Confoyinventors
Life of this patent
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Abstract
A gas flow regulator includes a one-piece housing with an internally disposed flowmeter. The flowmeter is screwed into the housing. A fitting, such as a hose barb, extends through the housing and into the body of the flowmeter to secure the pieces together. Similarly, an inner core assembly can be separately fabricated, screwed into the housing and secured by fittings. This allows a full brass core for oxygen regulators.
Claims46
A gas flow device for delivering a flow of medical oxygen at a prescribed dosage from a pressurized supply vessel to a patient, comprising:
- an outer body formed from a unitary piece of a first material, the first material having a first burning point in the presence of pressured pure oxygen, the outer body having an integrated yoke matable to a pressurized supply vessel and an inner cavity formed in the outer body, the outer body and the inner cavity bounded by an inner wall of the outer body;
- an inner core having a pressure reducing element and an oxygen flow path from the pressured supply vessel through the pressure reducing element, the flow path bounded by a second material, the second material having a second burning point in the presence of pressurized pure oxygen that is higher than the first burning point, the inner core substantially enclosed within the inner cavity;
- and
- a securing mechanism to secure the inner core within the outer body.
A gas flow device for delivering oxygen at a selected flow rate from a pressured supply vessel, the device comprising:
- an outer body of a first material, the first material being ignitable when exposed to high pressure oxygen;
- a yoke for mounting the outer body to a supply vessel having pressurized oxygen stored therein;
- and
- an inner core assembly substantially enclosed by the outer body, the inner core assembly having an inlet for interfacing with the pressurized oxygen from the supply vessel, an outlet for outputting the oxygen at the selected flow rate and a vent between the inlet and outlet for discharging over-pressurized oxygen, the oxygen traversing a flow path bounded by a second material through the inner core assembly from the inlet to the vent, the second material resistant to ignition when exposed to high pressure oxygen.
A method of fabricating a gas flow device for delivering oxygen at a selected flow rate from a pressurized supply vessel, the method comprising:
- forming an outer body of a first material, the first material ignitable when exposed to high pressure oxygen;
- providing a yoke for securing the outer body to a supply vessel having pressurized oxygen stored therein;
- assembling an inner core assembly, the inner core assembly having an inlet for interfacing with the pressurized oxygen from the supply vessel, an outlet for outputting the oxygen at the selected flow rate, and a vent disposed between the inlet and the outlet for discharging over-pressurized oxygen, the oxygen traversing a flow path bounded by a second material through the inner core assembly from the inlet to the vent, wherein the second material inhibits ignition when exposed to high pressure oxygen;
- and
- substantially enclosing the inner core assembly within the outer body.
A gas flow device for delivering a flow of medical oxygen at a prescribed dosage from a pressurized supply vessel to a patient, comprising:
- an outer body formed from a unitary piece of a first material, the first material comprises aluminum having a first burning point in the presence of pressured pure oxygen, the outer body having an integrated yoke matable to a pressurized supply vessel and an inner cavity formed in the outer body, the outer body and the inner cavity bounded by an inner wall of the outer body;
- an inner core having a pressure reducing element and an oxygen flow path from the pressured supply vessel through the pressure reducing element, the flow path bounded by a second material, the second material comprises brass having a second burning point in the presence of pressurized pure oxygen that is higher than the first burning point, the inner core substantially enclosed within the inner cavity;
- and
- a securing mechanism to secure the inner core within the outer body.
A gas flow device for delivering oxygen at a selected flow rate from a pressured supply vessel, the device comprising:
- an outer body of a first material, the first material being ignitable when exposed to high pressure oxygen;
- a yoke for mounting the outer body to a supply vessel having pressurized oxygen stored therein;
- and
- an inner core assembly substantially enclosed by the outer body, the inner core assembly having an inlet for interfacing with the pressurized oxygen from the supply vessel, an outlet for outputting the oxygen at the selected flow rate and a vent between the inlet and outlet for discharging over-pressurized oxygen, the oxygen traversing a flow path bounded by a second material through the inner core assembly from the inlet to the vent, the second material comprises brass that is resistant to ignition when exposed to high pressure oxygen.
A method of fabricating a gas flow device for delivering oxygen at a selected flow rate from a pressurized supply vessel, the method comprising:
- forming an outer body of a first material, the first material ignitable when exposed to high pressure oxygen;
- providing a yoke for securing the outer body to a supply vessel having pressurized oxygen stored therein;
- assembling an inner core assembly, the inner core assembly having an inlet for interfacing with the pressurized oxygen from the supply vessel, an outlet for outputting the oxygen at the selected flow rate, and a vent disposed between the inlet and the outlet for discharging over-pressurized oxygen, the oxygen traversing a flow path bounded by a second material through the inner core assembly from the inlet to the vent, wherein the second material comprises brass that inhibits ignition when exposed to high pressure oxygen;
- and
- substantially enclosing the inner core assembly within the outer body.
Dependencies are inferred from the claim text.