Patent US4476021A successfully refreshed from Google Patents.
US4476021A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust, scale and foreign particle arrester
Assignee: Individual
•
Filing: 1982-06-22
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Granted: 1984-10-09
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Expires: 2002-06-22
Abstract
Abstract A rust and scale arrester intended for use in heat transfer systems particularly for water cooling systems of internal combustion engines is mounted in place of an ordinary connection hose. Primary and secondary filter deflector screens are mounted at about 60° to the flow of water from the inlet to the outlet. The primary filter deflector screen extends downward into the collection chamber and extends rearward to cause solid particles to flow outward along walls of the collection chamber. The downward extension has a forward and downward extending portion which encourages solid particles flowing downward from the first deflection screen to flow along walls of the collection chamber. The forward portion of the downward extension has openings which allow upward water flow, and the downward and rearward extending portion has openings which allow water to flow over the downward and forward extending portion to remove particles and promote water flow.
Inventors
- 👤 Alexander Souza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:39
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
229 words
Rust and scale arrester apparatus for installing in a circulating cooling system for internal combustion engines comprising a fluid inlet and a fluid outlet, a separation chamber positioned between the fluid inlet and the fluid outlet, a collection chamber connected below the separation chamber in fluid communication therewith, deflecting filter means disposed in the separation chamber between the fluid inlet and the fluid outlet for separating solids from the fluid flowing through the separation chamber from the inlet to the outlet and baffle means mounted in the separation chamber and in the collection chamber for directing flow of fluid through the separation chamber and through the collection chamber to promote removal of solid particles from the deflecting filter means and to flow solid particles from the deflecting filter means into the collection chamber, and emptying means connected to the collection chamber for emptying solid particles in the collection chamber, the baffle means extending rearward in the direction of the fluid inlet and downward in the direction of the collection chamber from the filter means, a portion of the baffle means extending forward in the direction of the outlet and downward from a downward and rearward extending portion of the baffle means, and the downward and forward extending portion of the baffle means having openings therein for permitting upward flow of fluid from the collection chamber toward the separation chamber.
Claim 2
Dependent Claim
229 words
Rust and scale arrester apparatus for installing in a circulating cooling system for internal combustion engines comprising a fluid inlet and a fluid outlet, a separation chamber positioned between the fluid inlet and the fluid outlet, a collection chamber connected below the separation chamber in fluid communication therewith, deflecting filter means disposed in the separation chamber between the fluid inlet and the fluid outlet for separating solids from the fluid flowing through the separation chamber from the inlet to the outlet and baffle means mounted in the separation chamber and in the collection chamber for directing flow of fluid through the separation chamber and through the collection chamber to promote removal of solid particles from the deflecting filter means and to flow solid particles from the deflecting filter means into the collection chamber, and emptying means connected to the collection chamber for emptying solid particles in the collection chamber, the baffle means extending rearward in the direction of the fluid inlet and downward in the direction of the collection chamber from the filter means, a portion of the baffle means extending forward in the direction of the outlet and downward from a downward and rearward extending portion of the baffle means, and the downward and forward extending portion of the baffle means having openings therein for permitting upward flow of fluid from the collection chamber toward the separation chamber.
Claim 3
Dependent Claim
30 words
The rust and scale arrester of claim 1 wherein the filter means extends downward in a direction of the collection chamber and forward in a direction of the outlet means.
Claim 4
Dependent Claim
23 words
The rust and scale arrester apparatus of claim 2 wherein the deflecting filter means comprise parallel downward and forward sloping foraminous filter barriers.
Claim 5
Dependent Claim
71 words
The rust and scale arrester apparatus of claim 3 in which a first filter means adjacent the inlet has relatively large openings and in which a second filter means adjacent the outlet has relatively small openings whereby fluid flowing through the first filter means tends to flow through the second filter means and also downward and forward along the second filter means thereby flowing solid particles downward toward the collection chamber.
Claim 6
Dependent Claim
23 words
The apparatus of claim 4 wherein the second filter means extends across the separation chamber, separating the separation chamber from the outlet means.
Claim 7
Dependent Claim
14 words
The apparatus of claim 3 wherein the filtering means slope forwardly at approximately 60°.
Claim 8
Dependent Claim
37 words
The apparatus of claim 1 wherein the baffle means extending into the collection chamber create and eddy floe which encourages the accumulation of rust and scale and other foreign matter at the bottom of the separation chamber.
Claim 9
Dependent Claim
37 words
The apparatus of claim 7 wherein the baffle means extending into the collection chamber create an eddy flow which encourages the accumulation of rust and scale and other foreign matter at the bottom of the separation chamber.
Claim 10
Dependent Claim
31 words
The rust and scale arrester apparatus of claim 1 wherein the baffle means is connected to the deflecting filter means and extends from the deflecting filter means into the collection chamber.
Claim 11
Dependent Claim
44 words
The rust and scale arrester apparatus of claim 1 wherein the downward and rearward extending portion of the baffle means has openings therein for flowing fluid through the openings from an inlet direction across the downward and forward extending portion of the baffle means.
Claim 12
Dependent Claim
82 words
The rust and scale arrester apparatus of claim 1 wherein the inlet and outlet means are generally tubular and are axially aligned and wherein the collection chamber comprises a conical chamber sloping downward and inward therefrom and wherein the apparatus further comprises an upward extension opposite the collection chamber and an outward extending flange surrounding the extension and a mounting plate covering the flange and sealing the apparatus whereby removing the mounting plate provides access to the filter means and baffle means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |