High-efficiency fuel-water filter
OwnerRobert Warnerinventor
Life of this patent
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Abstract
A high-efficiency, yet inexpensive fuel-water filter is disclosed that both optimizes filter space and water reservoir space, and includes a pleated filter media configured to substantially maximize the effective/exposed surface area of the filter media.
Claims31
A marine fuel-water filtering system used to eliminate contamination from gasoline, comprising:
- a body having a generally cylindrical structure, the body including a side portion, a top portion and a bottom portion, wherein the top portion contains a screw-on structure and has a central fuel input port and one or more fuel output ports;
- and
- a cylindrical filter unit contained within the body, wherein the filter unit includes a top cover, a bottom cover and a ten-micron or less filter media disposed between the top and bottom covers, the filter media being pleated to form a radial zig-zag pattern having peaks and nadirs;
- wherein the pleated filter media has more than fifty peaks, and wherein the peaks and nadirs have an expected regular distribution designed to substantially maximize the effective surface area of the filter media.
A marine fuel-water filtering system used to eliminate contamination from gasoline, comprising:
- a body having a generally cylindrical structure, the body including a side portion, a top portion and a bottom portion, wherein the top portion contains a screw-on structure and has a central fuel input port and one or more fuel output ports, and wherein the side portion and bottom portion of the body are of unitary construction;
- and
- a cylindrical filter unit contained within the body, wherein the filter unit includes a top cover, a bottom cover and a ten-micron or less filter media disposed between the top and bottom covers, the filter media being pleated to form a radial zig-zag pattern having peaks and nadirs;
- wherein the cylindrical filter unit occupies a filter-zone located over a water reservoir-zone, the water reservoir-zone used to collect water contamination, wherein the water reservoir-zone occupies less that a linear inch along the central axis of the filter body
A marine fuel-water filtering system used to eliminate contamination from gasoline, comprising:
- a body having a generally cylindrical structure, the body including a side portion, a top portion and a bottom portion, wherein the top portion contains a screw-on structure and has a central fuel input port and one or more fuel output ports, and wherein the side portion and bottom portion of the body are of unitary construction;
- and
- a cylindrical filter unit contained within the body, wherein the filter unit includes a top cover, a bottom cover and a ten-micron or less filter media disposed between the top and bottom covers, the filter media being pleated to form a radial zig-zag pattern having peaks and nadirs;
- wherein the cylindrical filter unit occupies a filter-zone located over a water reservoir-zone, the water reservoir-zone used to collect water;
- and wherein the ratio of filter-zone to water reservoir-zone is at least 4:1 as measured linearly along the central axis of the filter body
A marine fuel-water filtering system used to eliminate contamination from gasoline, comprising:
- a body having a generally cylindrical structure, the body including a side portion, a top portion and a bottom portion, wherein the top portion contains a screw-on structure and has a central fuel input port and one or more fuel output ports, and wherein the side portion and bottom portion of the body are of unitary construction;
- and
- a filter unit contained within the body, wherein the filter unit includes a top cover, a bottom cover and a ten-micron or less filter media disposed between the top and bottom covers, the filter media being pleated to form a radial zig-zag pattern having peaks and nadirs and being formed into a generally cylindrical shape having an outer radius and an inner radius;
- wherein the inner radius of the pleated filter media is large enough to prevent substantially all of the nadirs from touching or forming constriction zones.
A marine fuel-water filtering system containing a filter unit within, the marine fuel-water filtering system being used to eliminate contamination from gasoline, comprising:
- a body having a generally cylindrical structure, the body including a side portion, a bottom portion and a top portion, wherein the top portion contains a screw-on structure and has a central fuel input port and one or more fuel output ports, and wherein the top-portion contains a seal located between the edge of the top portion and the input and output ports;
- and
- wherein the region between the edge of the top-portion and the seal is all or substantially all coated with an anti-corrosion coating.
Dependencies are inferred from the claim text.