Dual pressure regulator having balanced regulator valves supported in sprayer handle-conformal unibody structure

• US 5,695,125 A
• Filed: 02/09/1995
• Issued: 12/09/1997
• Est. Priority Date: 02/09/1995
• Status: Expired due to Fees

• Current Assignee: Teknocraft, Inc.
• Original Assignee: Teknocraft, Inc.
• Inventors: Kumar, Viraraghavan S.
• Primary Examiner(s): Johnson, Brian L.
• Assistant Examiner(s): BARTZ, CLIFFORD T
• Application Number:
  US08/385,913
• Time in Patent Office: 1,034 Days
• Field of Search: 239/76, 239/337, 239/364, 239/373, 239/344, 239/346
• US Class Current: 239/364
• CPC Class Codes: B05B 7/241 the container being pressurised

Abstract

A dual pressure regulator device for a spray gun is supplied with an input fluid under pressure and outputs a first regulated pneumatic pressure to a pressurized tank, and a second regulated pneumatic pressure to the spray gun. The dual pressure regulator device has a unitary body having a fluid passageway extending from an inlet port at a first end of the body, to which inlet port the input fluid is supplied, to a first valve chamber in which a first regulator valve is installed, and to a second valve chamber in which a second regulator valve is installed. The pressure in the nozzle device'"'"'s main pressure internal line and the head pressure within the tank are maintained within specified tolerances, independent of pressure fluctuations in the main supply line to the nozzle device. The body has an inclined body wall portion that is conformal with the handle, such that the valve assemblies are physically accommodated and accessible in a space directly beneath the handle, adjacent to the tank.

Claims

1. A dual pressure regulator device for receiving an input fluid under pressure and supplying output fluid at a first regulated pressure to a pressurized container which stores a material to be delivered under pressure through a controlled nozzle device, and for supplying output fluid at a second regulated pressure to said controlled nozzle device, said dual pressure regulator device comprising a fluid passageway having an inlet port to which said input fluid is supplied, a first, balanced regulator valve having a first input port coupled to said fluid passageway and a first output port arranged to be coupled to said pressurized container, said first, balanced regulator valve being operative to supply output fluid from said first output port at said first regulated pressure, and a second regulator valve having a second input port coupled to said fluid passageway and a second output port arranged to be coupled to said controlled nozzle device, said second regulator valve being operative to supply output fluid from said second output port at said second regulated pressure, and further comprising a body having said fluid passageway extending therethrough from said inlet port to a first valve chamber in which said first regulator valve is installed, and to a second valve chamber in which said second regulator valve is installed, said first valve chamber being in fluid communication with said first output port at a first location of said body, and said second valve chamber being in fluid communication with said second output port at a second location of said body.

2. A dual pressure regulator device according to claim 1, wherein said second regulator valve comprises a balanced regulator valve.

3. A dual pressure regulator device according to claim 1, wherein said second output port has a first cylindrical axis, and said fluid passageway has a longitudinal axis that is non-parallel to said first cylindrical axis.

4. A dual pressure regulator device according to claim 3, wherein said body has a first end containing said inlet port, a second end containing said second output port, and an outer surface therebetween which is non-parallel to said first cylindrical axis, such that, with said dual regulator device being mounted to a handle of said controlled nozzle device by way of said second output port, said outer surface of said body will be parallel to an outer surface of said handle.

5. A dual pressure regulator device according to claim 3, wherein said first output port has a second cylindrical axis to which said longitudinal axis is non-parallel.

6. A dual pressure regulator device according to claim 1, wherein said inlet port has a first cylindrical axis, said fluid passageway has a longitudinal axis that is non-parallel to said first cylindrical axis, and said second output port has a second cylindrical axis with which said longitudinal axis is non-parallel.

7. A dual pressure regulator device for receiving an input fluid under pressure and supplying output fluid at a first regulated pressure to a pressurized container which stores a material to be delivered under pressure through a controlled nozzle device, and for supplying output fluid at a second regulated pressure to said controlled nozzle device, said controlled nozzle device having a handle which is seized by the hand of an operator, said dual pressure regulator device comprising a unitary body having a fluid passageway extending from an inlet port at first end of said body, to which inlet port said input fluid is supplied, to a first valve chamber in which a first regulator valve is installed, and to a second valve chamber in which a second regulator valve is installed, said first valve chamber being in fluid communication with a first output port at a first location of said body, and said second valve chamber being in fluid communication with a second output port at a second end of said body, said first regulator valve being operative to supply output fluid from said first output port at said first regulated pressure, and said second regulator valve being operative to supply output fluid from said second output port at said second regulated pressure, such the pressure in the nozzle device'"'"'s main pressure internal line and the head pressure within said pressurized container are maintained within specified tolerances, independent of pressure fluctuations in the main supply line to the nozzle device.

8. A dual pressure regulator device according to claim 7, wherein said body has an inclined body wall portion that is conformal with said handle grip, such that said valve assemblies are physically accommodated and accessible in a space directly beneath said handle, adjacent to said pressurized container.

9. A dual pressure regulator device for receiving an input fluid under pressure and supplying output fluid at a first regulated pressure to a pressurized container which stores a material to be delivered under pressure through a controlled nozzle device, and for supplying output fluid at a second regulated pressure to said controlled nozzle device, said controlled nozzle device having a handle which is seized by the hand of an operator, said dual pressure regulator device comprising a unitary body having a fluid passageway extending from an inlet port at a first end of said body, to which inlet port said input fluid is supplied, to a first valve chamber in which a first balanced, regulator valve is installed, and to a second valve chamber in which a second regulator valve is installed, said first valve chamber being in fluid communication with a first output port at a first location of said body, and said second valve chamber being in fluid communication with a second output port at a second end of said body, said first balanced regulator valve being operative to supply output fluid from said first output port at said first regulated pressure, and said second regulator valve being operative to supply output fluid from said second output port at said second regulated pressure.

10. A dual pressure regulator device according to claim 9, wherein said second regulator valve comprises a balanced regulator valve.

11. A dual pressure regulator device according to claim 9, wherein said unitary body has an outer surface between said first and second ends thereof, said outer surface of said unitary body being configured to be generally conformal with an outer surface of said handle, when said unitary body is connected with said handle by way of said second end thereof.

12. A dual pressure regulator device according to claim 11, wherein said second output port has a first cylindrical axis, and said fluid passageway has a longitudinal axis that is non-parallel to said first cylindrical axis.

13. A dual pressure regulator device according to claim 12, wherein said first output port has a second cylindrical axis to which said longitudinal axis is non-parallel.

14. A dual pressure regulator device according to claim 11, wherein said first inlet port has a first cylindrical axis, said fluid passageway has a longitudinal axis that is non-parallel to said first cylindrical axis, and said second output port has a second cylindrical axis with which said longitudinal axis is non-parallel.

15. A dual pressure regulator device according to claim 14, wherein said fluid passageway has a longitudinal axis that is generally parallel to said outer surface of said unitary body.

16. A dual pressure regulator device according to claim 15, wherein said first and second valve chambers are offset from one another along a line that is generally parallel to said longitudinal axis.