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US5615695A Expired / Lapsed US ⏱️ 0.0 years remaining

Pulsater fluid system flusher

Assignee: HECAT Inc
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Filing: 1995-12-15
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Granted: 1997-04-01
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Expires: 2015-12-15
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Abstract

Abstract The disclosure relates to an apparatus and method for cleaning fluid lines by use of an improved inline manifold. The manifold controls the flow of cleaning liquid causing a pulsing action of an atomized mixture of cleaning liquid and air through the fluid lines. The apparatus includes a hose for carrying cleaning fluid and air to the fluid lines, a source of compressed air, an enclosed tank containing cleaning liquid and the manifold operatively connected to the air source and the tank.

Inventors

  • 👤 Harvey E. Chambers

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:03
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; F; F01; F01P; F01P11/00; F01P11/06; F02; F02B; F02B77/00; F02B77/04; F28; F28G; F28G9/00; F01P2011/065

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 356 words
An apparatus for cleaning fluid lines comprising a hose for carrying cleaning liquid and air to said fluid lines, means for supplying cleaning liquid and air to said hose for cleaning said fluid lines, comprising, a source of compressed air, an enclosed tank having a reservoir partially filled with cleaning liquid, an air and liquid manifold means operatively connected to said air source and to said tank, said manifold means comprising an air flow system and a liquid distribution system, said air flow system having an air valve interconnecting said source of compressed air with an air chamber openly communicated with an upstream air passage and with a downstream air passage for simultaneously flowing compressed air therein, said upstream air passage having a predetermined restricted sized orifice openly communicating with said tank for restricting the flow of compressed air therein to gradually increase the air pressure in said tank, said downstream air passage openly air flowingly connecting with a hose barb means having an oval rear channel section integral with a restricted diameter sized oval front channel section, said liquid distribution system having a vertical liquid supply tube descending into said liquid for passing cleaning liquid to an upwardly connected downstream liquid passage having a liquid control means disposed therein which controls the flow of liquid through an interior tube extending from said downstream liquid passage longitudinally within said downstream air passage and said rear oval channel section and within said front channel section terminating at the tip end of said interior tube partway within said front channel wherein the cleaning liquid passes from said tip end into said front channel section, the exterior surface of said interior tube exposed to an open passage of air flowing through said downstream air passage and said rear channel section and a restricted passage of air flowing to its tip partway within said front channel section, where the air flow encounters said cleaning fluid passing from said tip into said rear channel section, said front channel section of said hose barb means connected to said hose for passing a mixture of cleaning liquid and pressurized air into said hose.
Claim 2
Independent Claim 356 words
An apparatus for cleaning fluid lines comprising a hose for carrying cleaning liquid and air to said fluid lines, means for supplying cleaning liquid and air to said hose for cleaning said fluid lines, comprising, a source of compressed air, an enclosed tank having a reservoir partially filled with cleaning liquid, an air and liquid manifold means operatively connected to said air source and to said tank, said manifold means comprising an air flow system and a liquid distribution system, said air flow system having an air valve interconnecting said source of compressed air with an air chamber openly communicated with an upstream air passage and with a downstream air passage for simultaneously flowing compressed air therein, said upstream air passage having a predetermined restricted sized orifice openly communicating with said tank for restricting the flow of compressed air therein to gradually increase the air pressure in said tank, said downstream air passage openly air flowingly connecting with a hose barb means having an oval rear channel section integral with a restricted diameter sized oval front channel section, said liquid distribution system having a vertical liquid supply tube descending into said liquid for passing cleaning liquid to an upwardly connected downstream liquid passage having a liquid control means disposed therein which controls the flow of liquid through an interior tube extending from said downstream liquid passage longitudinally within said downstream air passage and said rear oval channel section and within said front channel section terminating at the tip end of said interior tube partway within said front channel wherein the cleaning liquid passes from said tip end into said front channel section, the exterior surface of said interior tube exposed to an open passage of air flowing through said downstream air passage and said rear channel section and a restricted passage of air flowing to its tip partway within said front channel section, where the air flow encounters said cleaning fluid passing from said tip into said rear channel section, said front channel section of said hose barb means connected to said hose for passing a mixture of cleaning liquid and pressurized air into said hose.
Claim 3
Dependent Claim 31 words
The apparatus according to claim 1 wherein said air valve includes a manual control handle for turning the air flow on and off and hence the liquid flow in said manifold.
Claim 4
Dependent Claim 17 words
The apparatus according to claim 2 wherein said air valve is releasably threadedly mounted on said manifold.
Claim 5
Dependent Claim 38 words
The apparatus according to claim 2 wherein said liquid control means includes a shut-off valve having a manual control handle for turning the cleaning liquid flow off and on and hence the cleaning liquid flow in said manifold.
Claim 6
Dependent Claim 17 words
The apparatus according to claim 4 wherein said shut-off valve is releasably frictionally mounted on said manifold.
Claim 7
Dependent Claim 14 words
The apparatus according to claim 5 wherein said shut-off valve is made of plastic.
Claim 8
Dependent Claim 20 words
The apparatus according to claim 1 wherein a safety valve is connected to the manifold for releasing the air therefrom.
Claim 9
Dependent Claim 21 words
The apparatus according to claim 7 wherein said safety air valve is connected to branch passage from said main air chamber.
Claim 10
Dependent Claim 19 words
The apparatus according to claim 1 wherein a solvent and air recovery system is connected to said fluid lines.
Claim 11
Dependent Claim 30 words
The apparatus according to claim 9 wherein said solvent and air recovery system comprises a drain hose for carrying used cleaning liquid from the fluid lines to a drain container.
Claim 12
Dependent Claim 27 words
The apparatus according to claim 10 wherein said drain container includes an attached solvent defuser having a drain hose barb and elbow for processing the used solvent.
Claim 13
Dependent Claim 21 words
The apparatus according to claim 4 wherein said drain container includes an attached air filter for filtering air to the atmosphere.
Claim 14
Dependent Claim 13 words
The apparatus according to claim 1 wherein said cleaning fluid comprises a solvent.
Claim 15
Dependent Claim 12 words
The apparatus according to claim 13 wherein said solvent comprises mineral spirits.
Claim 16
Dependent Claim 14 words
The apparatus according to claim 13 wherein said cleaning fluid comprises a compounded solvent.
Claim 17
Dependent Claim 13 words
The apparatus according to claim 1 wherein said manifold has a rectangular shape.
Claim 18
Dependent Claim 12 words
The apparatus according to claim 16 wherein said manifold comprises metal parts.
Claim 19
Dependent Claim 28 words
The apparatus according to claim 1 wherein said hose barb means is threadedly connected partway within said downstream air passage and extends beyond the exterior of said manifold.
Claim 20
Dependent Claim 21 words
The apparatus according to claim 18 wherein said interior tube extends about one half an inch into said front channel section.
Claim 21
Dependent Claim 31 words
The apparatus according to claim 19 wherein said restricted air passage between the interior tube outside surface and the front channel section inside surface is about one quarter of an inch.
Claim 22
Dependent Claim 20 words
The apparatus according to claim 20 wherein said predetermined sized orifice is about one eight of an inch in diameter.
Claim 23
Dependent Claim 28 words
An apparatus according to claim 1 wherein the restricted diameter of said oval front channel section is substantially smaller than the diameter of said oval rear channel section.

References Cited (Backward Citations)

US3165114A Cited
US3232482A Cited
US3188238A Cited
US5097806A Cited
US5425333A Cited
US5485857A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-03-31 2000-09-30 2001-04-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-03-31 2004-09-30 2005-04-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-03-31 2008-09-30 2009-04-01 $7700.00 Window Closed / Lapsed

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