AUTOMATIC SELF-OPERATING FEEDER

• US 3,807,434 A
• Filed: 09/20/1971
• Issued: 04/30/1974
• Est. Priority Date: 09/20/1971
• Status: Expired due to Term

• Current Assignee: Gerald L. Martin, Leo O. Rasmussen
• Original Assignee: Gerald L. Martin, Leo O. Rasmussen
• Inventors: Rasmussen, Leo O., Martin, Gerald L.
• Primary Examiner(s): Nilson, Robert G.
• Application Number:
  US05/182,046
• Time in Patent Office: 953 Days
• Field of Search: 137/205.5,268,564.5,604 210/169 239/317,318,340,365 417/182
• US Class Current: 137/268
• CPC Class Codes: B01F 25/30 Injector mixers mixing by creating vortex flow B01F25/10
• CPC Class Codes: F16K 19/00 Arrangements of valves and flow lines specially adapted for mixing fluids multiple-way valves F16K11/00
• CPC Class Codes: Y10T 137/3112 Main line flow displaces additive from shunt reservoir
• CPC Class Codes: Y10T 137/4891 With holder for solid, flaky or pulverized material to be dissolved or entrained
• CPC Class Codes: Y10T 137/87611 Flow control by varying position of a fluid inlet relative to entrainment chamber

Abstract

An automatic chemical feeder for a fluid flow stream has a chemical reservoir and a fluid flow operated pressure differential assembly. The preferred venturi or orifice assembly has replaceable sections, and is connected in the fluid flow stream. It is in fluid communication with the reservoir to receive fluid therefrom to mix in the fluid flow stream.

Claims

1. An automatic chemical feeding means which comprises a reservoir for chemicals having an inlet and an outlet, said inlet and said outlet being positioned in the upper portion of said reservoir at about the same height, an essentially T-shaped conduit housing attached to the bottom of said reservoir, said conduit housing including an internal structure defining a first threaded section, a second threaded section abutting said first threaded section and having a diameter smaller than same, a third threaded section juxtaposed to said second section, and a fourth threaded section contiguous to said third section and including a diameter larger than same, said conduit housing additionally having a generally cylindrical shaped groove situated thereon and a threaded aperture piercing said second threaded section in proximity to where said third threaded section is juxtaposed thereto, said groove having threaded walls whereon said reservoir removably lodges, a conduit extension member having one end threaded for removably lodging within said threaded aperture, an orifice assembly situated within said housing, said orifice assembly comprising a first orifice conduit including a plurality of threads positioned on the exterior surface thereof which removably lodge on said second threaded section, a second orifice conduit including a threaded exterior surface which removably engages with said third threaded section, said first orifice conduit includes an internal diameter which tapers from said first threaded section, said sEcond orifice conduit comprises an interior defined by a tapering diameter, a generally constant diameter abutting said tapering diameter, and a diverging diameter attaching with said constant diameter, said diverging diameter diverges towards said fourth threaded section, said housing additionally having a cavity positioned between said first and said second orifice conduits which communicates with said aperture, an inlet conduit having a first end and a second end and an outlet opening, said first end being threaded for removably engaging with said first threaded section, an outlet conduit including a first end and a second end, said first end including a plurality of threads thereon for removably lodging on said fourth threaded section, an inlet hose connected from said outlet opening of said inlet conduit to said inlet of said reservoir, and an outlet hose having a first end connected to said outlet of said reservoir and a second end removably attached to said conduit extension member, said second end adjustably protrudes within said cavity while lodging in said conduit extension member, and said second end of said inlet conduit and said second end of said outlet conduit each include a means for sealing said inlet conduit and said outlet conduit to a conduit system by compression.

2. The automatic chemical feeding means of claim 1 wherein said means for sealing situated on said second end of said inlet conduit and on said second end of said outlet conduit comprises a multiplicity of sealing threads situated on the exterior surface of each of said second end of said inlet conduit and of said outlet conduit, a recess positioned underneath said sealing threads and circumscribing the interior surface area of each of said inlet conduit and of said outlet conduit, a gasket ring and a compression ring situated within said recess of each of said conduits, said compression ring being adjacent to said gasket ring, and a compression nut removably mounted on said sealing threads of each of said second end of said inlet and of said outlet conduits, said compression nut including a flanged portion which abuts said ring and secures same and said gasket within said recess such that when said nut is tightened said ring is compressed against said gasket to expand same.