IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0691856
(2003-10-23)
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발명자
/ 주소 |
- Scott,James R.
- Finnerty,Carolyn J.
- Gieseke,Steven Scott
- Iddings,Douglas Lee
- Juliar,William M.
- LaVallee,Gregory
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
75 인용 특허 :
87 |
초록
▼
The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. An optional mechanical interlock, operated with a non-threaded, movement of the cartridge, is provided
The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. An optional mechanical interlock, operated with a non-threaded, movement of the cartridge, is provided between the primary filter cartridge and the housing. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.
대표청구항
▼
What is claimed is: 1. A filter cartridge comprising: (a) first and second, opposite, ends; (i) the first end having an air flow exit aperture therethrough; (b) filter media extending between the first and second ends; (c) outer framework having a sidewall structure circumscribing the media at le
What is claimed is: 1. A filter cartridge comprising: (a) first and second, opposite, ends; (i) the first end having an air flow exit aperture therethrough; (b) filter media extending between the first and second ends; (c) outer framework having a sidewall structure circumscribing the media at least at a location adjacent the first end and having an outer surface; the outer framework including an air impermeable portion in the sidewall structure of the outer framework; and, (d) a first member of a non-continuously threaded, rotational engagement mechanism positioned adjacent to, and spaced from, the first end, and positioned on an outer surface of the outer framework, integral with a remainder of the outer framework; and, (e) an axial seal ring on the first end and circumscribing the air flow exit aperture. 2. A filter cartridge according to claim 1 wherein: (a) the outer framework extends completely between the filter cartridge first and second ends. 3. A filter cartridge according to claim 1 wherein: (a) the first end includes a first, molded, end cap and the axial seal ring is an integrally molded portion of the first, molded, end cap. 4. A filter cartridge according to claim 3 wherein: (a) the first end cap and seal ring comprise foamed polyurethane having a hardness, Shore A, of no greater than 30. 5. A filter cartridge comprising: (a) first and second, opposite, ends; (i) the first end having an air flow exit aperture therethrough; (b) filter media extending between the first and second ends; (c) outer framework having a sidewall structure circumscribing the media at least at a location adjacent the first end and having an outer surface; the outer framework including an air impermeable portion in the sidewall structure of the outer framework; and, (d) a first member of a non-continuously threaded, rotational engagement mechanism positioned adjacent to, and spaced from, the first end, the first member comprising a segmented ring; and, (e) an axial seal ring on the first end and circumscribing the air flow exit aperture. 6. A filter cartridge according to claim 5 wherein: (a) each segment, of the segmented ring, has first and second opposite ends with: (i) the first end of each segment having a tip; and (ii) the second end of each segment, of the segmented ring, having a stop. 7. A filter cartridge according to claim 5 wherein: (a) each ring segment has a cammed surface on a side thereof facing toward said second end cap. 8. A filter cartridge comprising: (a) first and second, opposite, ends; (i) the first end having an air flow exit aperture therethrough; (b) filter media extending between the first and second ends; (c) outer framework having a sidewall structure circumscribing the media at least at a location adjacent the first end and having an outer surface; the outer framework including an air impermeable portion in the sidewall structure of the outer framework, said outer framework extending from said first end to said second end and including: (i) an imperforate shield section adjacent said first end and extending over an axial distance of at least 10% of the axial length of the outer framework; and, (ii) a perforate section having an open area of at least 50% extending between the shield section and the second end; the perforate section having an axial length of at least 20% of the axial length of the outer framework; and, (d) a first member of a non-continuously threaded, rotational engagement mechanism positioned adjacent to, and spaced from, the first end; and, (e) an axial seal ring on the first end and circumscribing the air flow exit aperture. 9. A filter cartridge according to claim 8 wherein: (a) the perforate section of the outer framework having an open area of at least 50% comprises a plurality of axial strips interconnected by a spiral, radial, structure. 10. A filter cartridge comprising: (a) first and second, opposite, ends; (i) the first end having an air flow exit aperture therethrough; (b) filter media extending between the first and second ends; (c) outer framework having a sidewall structure circumscribing the media at least at a location adjacent the first end and having an outer surface; the outer framework including an air impermeable portion in the sidewall structure of the outer framework; and, (d) a first member of a non-continuously threaded, rotational engagement mechanism positioned adjacent to, and spaced from, the first end; and, (e) an axial seal ring on the first end and circumscribing the air flow exit aperture; wherein: the outer framework comprises a molded plastic member extending between the first and second ends; and includes: (i) a first, open, end embedded within a first end cap potting and defining an air flow outlet aperture; and (ii) a second end embedded within a second end cap potting and including: (A) a central, imperforate end region; and, (B) an outer, annular, perforate, region surrounding the central, imperforate, region; (1) the annular perforate, region being embedded in, and closed by, the second end cap potting; and (2) at least a central portion of the central, imperforate, region not being embedded in the second end cap potting. 11. A filter cartridge according to claim 10 wherein: (a) the second end has an outer axial, central, surface with central recess therein. 12. A filter cartridge according to claim 11 wherein: (a) said central recess in non-circularly shaped. 13. A filter cartridge according to claim 12 wherein: (a) said central recess is plus shaped. 14. A filter cartridge comprising: (a) first and second, opposite, ends; (i) the first end having an air flow exit aperture therethrough; (b) filter media extending between the first and second ends; (c) outer framework having a sidewall structure circumscribing the media at least at a location adjacent the first end and having an outer surface; the outer framework including an air impermeable portion in the sidewall structure of the outer framework, and having a conical shaped portion with a portion adjacent the first end having an outer diameter D1 and a portion adjacent the second end having an outer diameter D2, wherein D1<D2; and, (d) a first member of a non-continuously threaded, rotational engagement mechanism positioned adjacent to, and spaced from, the first end; and, (a) an axial seal ring on the first end and circumscribing the air flow exit aperture. 15. A filter cartridge according to claim 14 wherein; (a) D1 is at least 10% larger than D2. 16. A filter cartridge according to claim 14 wherein: (a) the conical portion of the outer framework has a conical angle within the range of 1째 to 4째. 17. An air cleaner assembly comprising: (a) a housing having a sidewall and first and second opposite ends; (i) the first end being closed and having an axial outlet tube therein; (ii) the housing including a dust drop rube adjacent the first end; (iii) the housing including a side air flow inlet adjacent the second end; (iv) the housing sidewall second end being an open end; and, (v)the housing having an end cover removably mounted to close the housing second end; the end cover being a completely closed end cover and having a precleaner comprising a shield having a spiral ramp on an outer surface thereof; the precleaner being positioned to operably receive air from the said air flow inlet, in use. 18. An air cleaner assembly according to claim 17 including: (a) a conical, removable and replaceable, primary filter cartridge positioned therein with: (i) a larger diameter end of the primary filter cartridge sealed to the housing, at a location around the air flow outlet, by an axial seal; and, (ii) with a narrow end of the primary filter cartridge surrounded by the precleaner.
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