Readily disassembleable fluid flow rate controller

• US 4,074,693 A
• Filed: 07/26/1976
• Issued: 02/21/1978
• Est. Priority Date: 07/26/1976
• Status: Expired due to Term

• Current Assignee: W&A Bates Limited
• Original Assignee: W&A Bates Limited
• Inventors: Kates, Willard A.
• Primary Examiner(s): Nilson, Robert G.
• Application Number:
  US05/708,708
• Time in Patent Office: 575 Days
• Field of Search: 137/454.6, 137/501
• US Class Current: 137/454.6
• CPC Class Codes: G05D 7/014 using sliding elements
• CPC Class Codes: Y10T 137/7668 Retained by bonnet or closure
• CPC Class Codes: Y10T 137/7788 Pressures across fixed choke

Abstract

A readily disassembleable fluid flow rate controller arranged for facilitated sanitizing whereby the controller is adapted for use in controlling the flow rate of fluid food products and the like. The controller includes an adjustable orifice device and a spring-biased regulating device. The orifice and regulating devices are removably installed in a separable housing. Removable securing structure is provided to permit facilitated disassembly and assembly of the controller for facilitated sanitizing of the elements thereof.

Claims

1. A readily disassembleable fluid flow rate controller comprising:

a housing including a body defining a midportion and an outlet portion, a bonnet defining an inlet, and first readily removable securing means removably securing the body to the bonnet to define an internal control chamber, said body defining an inlet opening opening to the bonnet for receiving fluid delivered through said bonnet inlet into the bonnet, said body further defining an outlet opening;

orifice means in said control chamber and having adjusting means for providing an adjustable size orifice to provide a selected fluid flow from said inlet opening;

second readily removable securing means removably securing said orifice means to said housing for installation in and removal from said control chamber as a unit;

third readily removable securing means for removably securing said outlet portion of the body to said midportion; and

spring biased regulating means in said control chamber for maintaining a preselected pressure flow rate of the fluid passing from said orifice means to said outlet, said regulating means being arranged to be slidably installed in and removed from said body midportion as a unit, said regulating means being retained against slidable movement outwardly from said body by said outlet portion as an incident of said outlet portion being mounted to said midportion and being slidably removable as a unit from said body upon removal of said outlet portion from said midportion.

2. The fluid flow rate controller of claim 1 wherein said inlet and outlet openings of the body define coaxially aligned openings providing a generally straight-through flow of the fluid through the body.

3. The fluid flow rate controller of claim 2 wherein said orifice means extends through said body transversely to the direction of alignment of said openings.

4. The fluid flow rate controller of claim 1 wherein said body midportion and outlet portion define cooperating shoulder means for retaining said regulating means in a preselected installed disposition in said body.

5. A readily disassembleable fluid flow rate controller comprising:

a housing including a body, a bonnet, and first readily removable securing means removably securing the body to the bonnet to define an internal control chamber, said housing having an inlet opening and an outlet opening;

orifice means in said control chamber and having adjusting means for providing an adjustable size orifice to provide a selected fluid flow from said inlet opening;

second readily removable securing means removably securing said orifice means to said housing for installation in and removal from said control chamber as a unit; and

spring biased regulating means in said control chamber for maintaining a preselected pressure flow rate of the fluid passing from said orifice means to said outlet, said regulating means being arranged to be installed in and removed from said control chamber as a unit, said regulating means including a cup member, a piston movably received in said cup member, and a biasing spring, said cup member and piston having adjustably aligned ports for providing a variable cross section flow passage, said spring positioning, said piston in said cup member to adjust the effective cross section of said flow passage to maintain said preselected pressure of the fluid passing to said outlet opening, said cup member being removably fitted in said housing body for facilitated installation and removal of the regulating means in and from the housing body.

6. The fluid flow rate controller of claim 5 wherein said piston and biasing spring are removably received in said cup member for facilitated installation and removal thereof in and from the cup member.

7. A readily disassembleable fluid flow rate controller comprising:

a housing including a body defining a midportion and an outlet portion, a bonnet defining an inlet, and first readily removable securing means removably securing the body to the bonnet to define an internal control chamber, said body defining an inlet opening opening to the bonnet for receiving fluid delivered through said bonnet inlet into the bonnet, said body further defining an outlet opening;

orifice means in said control chamber and having adjusting means for providing an adjustable size orifice to provide a selected fluid flow from said inlet opening;

second readily removable securing means removably securing said orifice means to said housing for installation in and removal from said control chamber as a unit;

third readily removable securing means for removably securing said outlet portion to said midportion; and

flow regulating means including a regulating valve slidably mounted in said body midportion, a biasing spring externally of said control chamber, and connecting rod means for connecting said spring to said regulating valve, said regulating valve and connecting rod means being removable as a unit from said body upon removal of said outlet portion from said midportion, said regulating valve being retained against slidable movement outwardly from said body by said outlet portion as an incident of said outlet portion being mounted to said midportion.

8. The fluid flow rate controller of claim 7 including a spring housing removably secured to said bonnet, said spring being disposed in said spring housing and said connecting means extending removably through said bonnet.

9. The fluid flow rate controller of claim 7 wherein said connecting means comprises a rod extending from said regulating valve outwardly from said control chamber.

10. The fluid flow rate controller of claim 7 wherein said spring comprises a compression spring acting between said housing and said connecting means.

11. A readily disassembleable fluid flow rate controller comprising:

a housing including a body, a bonnet, and first readily removable securing means removably securing the body to the bonnet to define an internal control chamber, said housing having an inlet opening and an outlet opening;

orifice means in said control chamber and having adjusting means for providing an adjustable size orifice to provide a selected fluid flow from said inlet opening;

second readily removable securing means removably securing said orifice means to said housing for installation in and removal from said control chamber as a unit; and

flow regulating means including a regulating valve in said control chamber, a biasing spring externally of said control chamber, and connecting means for connecting said spring to said regulating valve, said spring comprising a compression spring acting between an external surface of said housing and said connecting means.

12. A readily disassembleable fluid flow rate controller comprising:

a housing including a body, a bonnet, and first readily removable securing means removably securing the body to the bonnet to define an internal control chamber, said housing having an inlet opening and an outlet opening;

orifice means in said control chamber and having adjusting means for providing an adjustable size orifice to provide a selected fluid flow from said inlet opening;

second readily removable securing means removably securing said orifice means to said housing for installation in and removal from said control chamber as a unit; and

flow regulating means including a regulating valve in said control chamber, a biasing spring externally of said control chamber, and connecting means for connecting said spring to said regulating valve, said bonnet defining a first opening, a second opening coaxially aligned with said first opening, and a third opening, said connecting means extending through said first and second openings, said third opening defining said fluid inlet opening, and said first opening conducting fluid from the bonnet into said body.

13. The fluid flow rate controller of claim 12 wherein said third opening opens transversely to the direction of alignment of said first and second openings.