Filter device

• US 5,759,393 A
• Filed: 11/18/1996
• Issued: 06/02/1998
• Est. Priority Date: 05/08/1995
• Status: Expired due to Fees

• Current Assignee: Quanics, Inc.
• Original Assignee: Harry L. Nurse Jr
• Inventors: Nurse, Harry L. Jr.
• Primary Examiner(s): WALKER, WANDA LYNNE
• Application Number:
  US08/751,838
• Time in Patent Office: 561 Days
• Field of Search: 210/232, 210/238, 210/323.1, 210/435, 210/357, 210/486, 210/495, 210/239, 210/437, 210/457, 210/485, 210/497.01, 210/499
• US Class Current: 210/232
• CPC Class Codes: B01D 2201/0453 positioned between at least two plates
• CPC Class Codes: B01D 2201/18 Filters characterised by the openings or pores
• CPC Class Codes: B01D 29/035 with curved filtering elements
• CPC Class Codes: B01D 29/111 Making filtering elements
• CPC Class Codes: B01D 29/33 arranged for inward flow filtration
• CPC Class Codes: B01D 29/52 in parallel connection
• CPC Class Codes: B01D 29/54 arranged concentrically or coaxially
• CPC Class Codes: B01D 29/605 by level measuring
• CPC Class Codes: B01D 29/96 in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters B01D29/09, B01D29/70 take precedence
• CPC Class Codes: B01D 35/027 rigidly mounted in or on tanks or reservoirs B01D35/04 takes precedence
• CPC Class Codes: B01D 35/0276 Filtering elements with a vertical rotation or symmetry axis mounted on tanks or reservoirs
• CPC Class Codes: B01D 35/26 Filters with built-in pumps filters provided with a pump mounted in or on the casing aquarium pumps or filters A01K63/04

Abstract

A filter device for separating solid material from a liquid includes a filter housing with vertically extending removable sidewalls wherein at the location of the removable sidewalls connections are provided to receive two vertically extending sidewalls in spaced parallel relationship whereby a fluid impermeable sidewall may be inserted into the circumferential section of the housing when a liquid permeable section is removed for cleaning without interfering with the continual operation of the filter device.

Claims

1. A filter for separating solid material from a liquid comprising:

a filter housing having a top with an opening therein, a closed bottom, and a plurality of vertically extending sidewall sections, at least one of the said sidewall sections including means to receive a pair of spaced, parallel removable vertically extending sidewall members, at least one of said removable vertical extending sidewalls including filter means in a lower portion thereof; and

,

means to remove filtered liquid from said housing.

2. The filter of claim 1, said pair of removable vertically extending sidewall sections being circumferentially aligned with a front sidewall and a back sidewall wherein in a filtering condition one of said sidewalls being liquid permeable, and in a cleaning operation the other of said sidewalls being liquid impermeable.

3. The filter of claim 1, filter means of said liquid permeable sidewall sections including a plurality of horizontally extending slots.

4. The filter of claim 3, said horizontally extending slots being from about 1/64" to 1/4" inches in height.

5. The filter of claim 1, said lower portion of said permeable section being less than one-third of the vertical height of said sidewall.

6. The filter of claim 5, said lower portion being approximately 6" in height.

7. The filter of claim 1, only one sidewall member being received within said means to receive a pair of spaced, parallel removable vertically extending sidewall members.

8. The filter of claim 1, said means to remove liquid from said housing including pump means positioned within said housing.

9. The filter system of claim 1, said means to remove liquid from said housing including a gravity discharge conduit in flow communication with filtered liquid in said housing.