Triangular filter cartridge having triangular passage

• US 4,749,485 A
• Filed: 08/25/1986
• Issued: 06/07/1988
• Est. Priority Date: 07/19/1984
• Status: Expired due to Fees

• Current Assignee: Howard T. Degraffenreid
• Original Assignee: Howard T. Degraffenreid
• Inventors: DeGraffenreid, Howard T.
• Primary Examiner(s): Fisher, Richard V.
• Assistant Examiner(s): WALKER, WANDA LYNNE
• Application Number:
  US06/900,165
• Time in Patent Office: 652 Days
• Field of Search: 210/323.1, 210/323.2, 210/331, 210/345, 210/346, 210/347, 210/486, 55/482, 55/521, 55/529
• US Class Current: 210/323.1
• CPC Class Codes: B01D 2201/0438 mounted substantially vertically on plates at the lower side of the filter elements
• CPC Class Codes: B01D 2201/0476 mounted substantially vertically on collector tubes at the lower side of the filter elements
• CPC Class Codes: B01D 2201/12 Pleated filters
• CPC Class Codes: B01D 29/15 arranged for inward flow filtration
• CPC Class Codes: B01D 29/52 in parallel connection

Abstract

An improved triangular filter cartridge and apparatus is provided comprising a generally cylindrical vessel having a plurality of generally triangularly shaped filter cartridges disposed therein. Each triangular filter cartridge has one of its substantially flat sides slightly spaced apart from and in direct facing relationship with the inner surface of the vessel, whereby a greater number of triangular filter cartridges can be compactly disposed within said vessel to increase the filtration capacity thereof. Each filter cartridge includes a passage that is triangularly shaped in a plane perpendicular to the axial direction.

Claims

1. A filter cartridge for filtering contaminants from a fluid comprising:

a permeable filter medium adapted for filtering contaminants from a fluid and having oppositely disposed ends and a passage disposed therein extending in a axial direction, said passage being open at one of said ends and being triangularly shaped in a plane perpendicular to said axial direction,

a generally triangular shaped porous support member in said passage being in supporting engagement with said permeable filter medium and adapted to have a fluid pass therethrough, said porous support member being triangularly shaped in a plane perpendicular to said axial direction, and

an end cap being sealingly secured to one end of said filter medium and having an opening therein communicating with said passage,

said permeable filter medium having a triangular shaped outer peripheral surface having three substantially flat sides disposed at arcuate angles to each other, adjacent ones of said sides being joined by an arcuate portion so that the cartridge has rounded corners.

2. A filter cartridge for filtering contaminants from a fluid comprising:

a permeable filter medium adapted for filtering contaminants from a fluid and having oppositely disposed ends and a triangular shaped passage disposed therein, said passage being open at one of said ends,

a generally triangular shaped porous support member in said passage being in suppporting engagement with said permeable filter medium and adapted to have a fluid pass therethrough, and

an end cap being sealingly secured to one end of said filter medium and having an opening therein communicating with said passage,

said permeable filter medium having a triangular shaped outer peripheral surface having three substantially flat sides disposed at arcuate angles to each other, adjacent ones of said sides being joined by an arcuate portion so that the cartridge has rounded corners,

said end cap including two axially extending, generally triangular shaped flange members, one end of the filter medium and said support member being sealingly secured between said flange members.

3. The filter cartridge of claim 2 including a second end cap sealingly secured to said filter medium at the other end thereof, said second end cap including two axially extending, generally triangular shaped flange members, the other end of the filter medium and support member being sealingly secured between the flange members of said second end cap.