Liquid filter utilizing pleated disc
First Claim
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1. A liquid filter comprising:
- a housing, an inlet orifice, an outlet orifice, a spring, a pleated disk filter;
said housing having a generally circular cross section, a first internal diameter and at least a second internal diameter that is greater than said first internal diameter; and
an abutment surface extending between said first internal diameter and said second internal diameter and positioned within said housing; and
said pleated disk filter positioned within said housing between said spring and said abutment surface.
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Abstract
A liquid filter including an inlet portion, an outlet portion and a central portion having a first inner diameter and a second, reduced inner diameter and a pleated disc filter retained inside of the central portion of the filter by a spring, and the filter having at least one of the end fittings being a threaded fitting and having corresponding threads on a corresponding portion of the housing.
33 Citations
16 Claims
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1. A liquid filter comprising:
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a housing, an inlet orifice, an outlet orifice, a spring, a pleated disk filter; said housing having a generally circular cross section, a first internal diameter and at least a second internal diameter that is greater than said first internal diameter; and an abutment surface extending between said first internal diameter and said second internal diameter and positioned within said housing; and said pleated disk filter positioned within said housing between said spring and said abutment surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A liquid filter comprising:
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a housing having a predetermined cross section, threads at each end, at least two different internal diameters and an abutment surface within said housing and extending between said two diameters; a first threaded end fitting adapted to engage one end of the housing and a second threaded end fitting adapted to engage the other end of the housing; a spring; a pleated disk filter positioned within said housing between said spring and said abutment surface. - View Dependent Claims (14, 16)
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15. A liquid filter comprising:
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a first threaded housing portion having a cross section, at least two different internal diameters and an abutment surface within said housing and extending between said diameters; a second threaded housing portion adapted to engage said first housing portion; a spring; and a pleated disk filter positioned within said first threaded housing portion between said spring and said abutment surface.
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Specification