Pipeline filter

{
  "publication_number": "US11738294B1",
  "country": "US",
  "kind": "B1",
  "title": "Pipeline filter",
  "abstract": "A pipeline filter assembly comprising a base assembly, an outer wall, and a lid assembly. The outer wall has a lower end portion and an upper end portion, wherein the upper end portion comprises a lower collar, and the lower collar comprises at least one lock notch spaced around an exterior surface thereof. The lid assembly is configured to couple to the lower collar of the outer wall. The lid assembly has an upper collar configured to mate with the lower collar. The upper collar has at least one housing that is coupled to the upper collar, and at least one biasing clip pivotally mounted within the housing for releasable engagement with the lock notch. A pair of pipeline filter assemblies, wherein at least one connection plate is used.",
  "claims": [
    "1. A pipeline filter assembly comprising: a) a base assembly having: i) a filter base; ii) a base plate upon which the pipeline filter assembly is configured to rest; b) an outer wall having a lower end portion and an upper end portion, wherein the lower end portion is seated within the base assembly and the upper end portion comprises a lower collar seated thereon, the lower collar comprising at least one lock notch spaced around an exterior surface thereof; and c) a lid assembly configured to couple to the lower collar of the outer wall, the lid assembly having: i) an upper collar configured to mate with the lower collar, the upper collar having: 1) At least one housing that projects from the upper collar; 2) At least one biasing clip pivotally mounted within the housing for releasable engagement with the lock notch; and 3) At least one biasing spring biasing its corresponding biasing clip to a locked position around a corresponding lock notch, wherein the lock notch has an upper portion and a lower portion, and wherein the biasing clip is in a primary locked position when the biasing clip is engaged with the lower portion of the lock notch, and the biasing clip is a secondary locked position when the biasing clip is engaged with the upper portion of the lock notch.",
    "2. The pipeline filter assembly of claim 1, further comprising an upper cover configured to secure to the outer wall via mating of the lower collar and the upper collar, the upper cover having: a) a top surface; b) at least one pressure gauge coupled to the top surface of the upper cover; and c) at least one pressure relief valve coupled to the top surface of the upper cover.",
    "3. The pipeline filter assembly of claim 1, wherein the biasing spring is mounted within a recess disposed within the biasing clip.",
    "4. A method of disengaging a lid assembly from a pipeline filter assembly, the pipeline filter assembly comprising a) a base assembly having: a filter base and a base plate upon which the pipeline filter assembly is configured to rest b) an outer wall having a lower end portion and an upper end portion, wherein the lower end portion is seated within the base assembly and the upper end portion comprises a lower collar seated thereon, the lower collar comprising at least one lock notch spaced around an exterior surface thereof; and c) a lid assembly configured to couple to the lower collar of the outer wall, the lid assembly having an upper collar configured to mate with the lower collar, the upper collar having at least one housing that projects from the upper collar, at least one biasing clip pivotally mounted within the housing for releasable engagement with the lock notch, and at least one biasing spring biasing its corresponding biasing clip to a locked position around a corresponding lock notch, wherein the lock notch has an upper portion and a lower portion, the method comprising the steps of: a) pulling the biasing clip outwards, towards an interior surface of the housing to disengage the biasing clip from the lower portion of the lock notch; b) rotating the lid assembly until the biasing clip clears the lower portion of the lock notch; c) releasing the biasing clip and continuing rotation of the lid assembly until the biasing clip engages the upper portion of the lock notch; d) pulling the biasing clip outwards, towards the interior surface of the housing to disengage the biasing clip from the upper portion of the lock notch; and e) continuing rotation of the lid assembly until the lid assembly is completely disengaged from the lower collar."
  ],
  "description_excerpt": "Pool filters are an essential requirement for any pool system. These filters tend to come in three varieties, sand, cartridge, and diatomaceous earth. The costs associated with these three filtering methods depends on the filter type, with sand being the lowest price filter and diatomaceous earth being the most expensive. Because cartridge filters tend to provide a good balance between cost and efficiency, these pool filters are in great demand. Cartridge filters tend to operate more favorably when scaled to a larger size. Specifically, to provide more adequate filtering, a larger amount of surface area of the cartridge should be exposed to the water. But, routine maintenance is often missed because removing the lid from the filter is cumbersome and difficult. Commonly the filter's lid needs to be pried off, which makes changing and or cleaning the filter a burdensome task.\n\nUnfortunately, the large size of the filter means that the housings used to support these filters tend to be costly to build. The result of using a large filter means all the associated components which support that filter need to be large as well. This poses problems for the industry. To start with, the filters require housings that is adequately sized to match the needs of the filter. To make housings of such size, manufacturers require production molds which are even larger and more costly to manufacture. This, in turn, requires even larger and more costly molding machine to manufacture production molds to produce the housings.",
  "cpc": [
    "B01D 35/30",
    "B01D 2201/301",
    "B01D 2201/302",
    "B01D 2201/305",
    "B01D 2201/306",
    "B01D 2201/34",
    "B01D 2201/4023",
    "B01D 2201/4038",
    "B01D 2201/4076",
    "B01D 29/15",
    "B01D 29/21",
    "B01D 35/303",
    "B01D 36/001"
  ],
  "ipc": [
    "B01D 29/21",
    "B01D 35/30",
    "B01D 36/00"
  ],
  "assignees": [
    "Aquastar Pool Products Inc"
  ],
  "inventors": [
    "Olaf Mjelde"
  ],
  "filing_date": "2022-03-21",
  "publication_date": "2023-08-29",
  "grant_date": "2023-08-29",
  "priority_date": "2019-05-30",
  "application_number": "US-202217700314-A",
  "family_id": "72664264",
  "cited_by_count": 1,
  "citations": [
    "US5114572A",
    "US6402798B1",
    "US20070187306A1",
    "US20140217003A1",
    "US10792596B1",
    "US11014027B1",
    "US11154801B1",
    "US11311828B1"
  ]
}