Chemical feeder with disposable chemical container

• US 4,250,911 A
• Filed: 09/28/1979
• Issued: 02/17/1981
• Est. Priority Date: 09/28/1979
• Status: Expired due to Term

• Current Assignee: Heldor Industries, Inc.
• Original Assignee: David W. Kratz
• Inventors: Kratz, David W.
• Primary Examiner(s): Cohan, Alan
• Application Number:
  US06/079,691
• Time in Patent Office: 508 Days
• Field of Search: 137/268, 422/264, 422/274, 422/275, 422/276, 422/281, 422/282, 239/310
• US Class Current: 137/268
• CPC Class Codes: B01F 21/22 using additional holders in conduits, containers or pools for keeping the solid material in place, e.g. supports or receptacles
• CPC Class Codes: B01F 35/713 comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges containers or packages per se B65D
• CPC Class Codes: Y10T 137/4891 With holder for solid, flaky or pulverized material to be dissolved or entrained

Abstract

The combination of a chemical feeder for liquid circulating systems comprising a casing provided with a vertically adjustable weir, and a disposable container for chemicals for treatment of the liquid which container is receivable within the casing. The container is provided with an opening for extension therethrough of the weir to a preselected height consonant with the desired concentration of the solution to be formed. The liquid is introduced into said container from the feeder for dissolution of the chemical with the resulting solution flowing downwardly through the weir for ultimate discharge to the associated system.

Claims

1. The combination of a chemical feeder for liquid circulating systems comprising a casing having a base wall and a side wall, a vertically presented weir engaged in said base wall, and a replaceable chemical-bearing container receivable within said casing, said container having a bottom wall and a side wall, means provided in said casing supportingly engaging said container bottom wall for presenting the container in vertically spaced relationship to said casing base wall, said container bottom wall being provided with an opening, said weir projecting in its upper portion through said container opening, said weir having an upper end of tapered configuration to facilitate penetration by said weir of the chemical within said container.

2. The combination as defined in claim 1 and further characterized by means for vertical adjustment of said weir comprising said casing bottom wall having a tapped opening, said weir being externally threaded throughout a predetermined portion of its length.

3. The combination as defined in claim 2 and further characterized by said weir external threads being of such thickness and pitch as to present approximately 16 threads to the inch.

4. The combination as defined in claim 1 wherein the opening in the container bottom wall is of a cross-section greater than said weir for defining an annular flow passage about said weir.

5. The combination as defined in claim 1 wherein said container bottom wall is provided with a plurality of apertures in surrounding relationship to said opening.

6. The combination as defined in claim 1 wherein said tapered upper end of said weir is closed, liquid inlet means provided on said weir adjacent to, and downwardly of, said tapered upper end, said weir having an open lower end constituting an outlet port.