Compressed gas regulator and flowmeter
AssigneeIllinois Tool Works Inc.
InventorsGary A. Foos, Robert W. Wakeman
Life of this patent
Estimating the term…
Abstract
An integrated regulator and flow meter assembly having a piston reciprocatingly disposed in an opening of a body member, a support member disposed in the body member opening over the piston, and a flow tube coupled to the support member, wherein an aperture of the support member interconnects a flow conduit of the piston and the flow tube. A spring, preferably a wave spring or disc spring, biases the piston away from an orifice with a valve seat formed thereabout on an end portion of the body member opening. In one embodiment, the piston and a seating surface thereof are formed unitarily of a plastic material.
Claims23
An integrated regulator and flow meter assembly comprising:
- a body member having an opening;
- a piston having a flow conduit, the piston reciprocatingly disposed in the opening of the body member;
- a flow tube support member having an aperture, the flow tube support member disposed in the opening of the body member over the piston;
- a flow tube adapted to provide an indication of gas flow through the integrated regulator and flow meter assembly, the flow tube being aligned by the flow tube support member,
- wherein the aperture of the flow tube support member interconnects the flow conduit of the piston and the flow tube.
A pressure regulator comprising:
- a body member;
- an opening in the body member, the opening having a side wall and an end portion;
- a valve seat disposed about a high pressure flow orifice in the end portion of the body member opening;
- a piston reciprocatingly disposed in the body member opening, the piston having an integrally formed seating surface on an end portion thereof adjacent the valve seat of the opening;
- and
- a support member having an aperture fixed axially in the body member opening opposite the end portion thereof, the piston disposed between the end portion of the body member opening and the support member, a portion of the piston opposite the end portion thereof having the seating surface reciprocatingly disposed in the aperture of the support member.
An integrated compressed gas regulator and flowmeter assembly comprising:
- a body member having an opening with a side wall and end portion;
- a high pressure flow orifice with a valve seat disposed thereabout on the end portion of the body member opening;
- a piston having a flow conduit reciprocatingly disposed in the body member opening, the piston having a seating surface on an end portion thereof adjacent the valve seat;
- a wave spring disposed between a portion of the piston and the end portion of the body member opening;
- a flowmeter coupled to the body member over the opening thereof, an input of the flow meter coupled to the piston flow conduit;
- and
- a support member fixed axially in the opening of the body member, a portion of the piston opposite the end portion thereof having the seating surface thereon reciprocatingly disposed in an aperture of the support member.
An integrated compressed gas regulator and flow meter assembly comprising:
- a body member having an opening with a side wall and end portion;
- a high pressure flow orifice with a valve seat disposed thereabout on the end portion of the body member opening;
- a piston having a flow conduit reciprocatingly disposed in the body member opening, the piston having a seating surface on an end portion thereof adjacent the valve seat;
- a disc spring disposed between a portion of the piston and the end portion of the body member opening;
- a flowmeter coupled to the body member over the opening thereof, an input of the flowmeter coupled to the piston flow conduit;
- and
- a support member fixed axially in the body member opening, a portion of the piston opposite the end portion thereof having the seating surface thereon reciprocatingly disposed in an aperture of the support member.
Dependencies are inferred from the claim text.