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US3748832A Expired / Lapsed US ⏱️ 0.0 years remaining

Drift eliminator

Assignee: CUSTODIS-ECODYNE Inc
•
Filing: 1971-07-09
•
Granted: 1973-07-31
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Expires: 1991-07-09
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Abstract

Abstract A drift eliminator to prevent airborne water droplets which are generated in a cooling tower from escaping through the discharge outlet by trapping the water droplets in the exhaust air and redirecting the air flow through the drift eliminator. The eliminator blades, hollow in cross-section, include three plane surfaces which incorporate a series of protrusions or sharp ridges for trapping water droplets which impinge on the eliminator blades and prevent same from becoming re-entrained in the air. The blades are formed with a ballistic nose of an air foil type leading edge to reduce resistance to air movement across the drift eliminator. The drift eliminator blades are assembled into unique panels to reduce field assembly time.

Inventors

  • 👤 D Furlong
  • 👤 J Ovard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 18:20
CPC Classifications
F; F28; F28C; F28C1/00; F28C1/04; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S261/00; Y10S261/11; Y10S55/00; Y10S55/37

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 222 words
In combination with a water cooling tower having an air inlet, an air outlet and means for directing currents of air along a path of travel from said inlet to said outlet in substantially horizontal, intersecting relationship to water gravitating within the tower, a drift eliminator within the tower, disposed to remove droplets of water entrained in said air immediately prior to discharge of said air through said outlet; said drift eliminator including a plurality of eliminator panels comprising: a. a plurality of longitudinally extending eliminator blades supported at their respective ends by a pair of support members, said support members having a plurality of openings passing therethrough; b. said eliminator blades being of a cellular structure having longitudinally extending stiffening members dividing said blades into a plurality of sections; and c. pin means for securing said eliminator blades to said support members, said pin means having a head portion and a shank portion, said shank portion passing through said opening in said support member and grasping said blade stiffening member, said head portion being dimensioned to prevent passage of it through said support member opening; d. at least some of said openings passing through said support members being dimensioned and shaped to prevent said head portion from passing therethrough and also to permit water collected on said blades to flow therethrough.
Claim 2
Dependent Claim 222 words
In combination with a water cooling tower having an air inlet, an air outlet and means for directing currents of air along a path of travel from said inlet to said outlet in substantially horizontal, intersecting relationship to water gravitating within the tower, a drift eliminator within the tower, disposed to remove droplets of water entrained in said air immediately prior to discharge of said air through said outlet; said drift eliminator including a plurality of eliminator panels comprising: a. a plurality of longitudinally extending eliminator blades supported at their respective ends by a pair of support members, said support members having a plurality of openings passing therethrough; b. said eliminator blades being of a cellular structure having longitudinally extending stiffening members dividing said blades into a plurality of sections; and c. pin means for securing said eliminator blades to said support members, said pin means having a head portion and a shank portion, said shank portion passing through said opening in said support member and grasping said blade stiffening member, said head portion being dimensioned to prevent passage of it through said support member opening; d. at least some of said openings passing through said support members being dimensioned and shaped to prevent said head portion from passing therethrough and also to permit water collected on said blades to flow therethrough.
Claim 3
Dependent Claim 20 words
The invention of claim 1 wherein said shank portion includes a longitudinally extending slot which receives said blade stiffening member.
Claim 4
Dependent Claim 37 words
The invention of claim 2 wherein said slot is dimensioned slightly less than the thickness of said blade stiffening member such that said shank portion securely grasps said stiffening member as it is forced into said slot.
Claim 5
Dependent Claim 23 words
The invention of claim 3 wherein each end of each eliminator blade is secured to said support member in at least two locations.
Claim 6
Dependent Claim 29 words
The invention of claim 1 wherein said eliminator blades are longitudinally inclined to cause said water collected on said blades to flow through said openings in said support members.
Claim 7
Dependent Claim 45 words
The invention of claim 1 wherein the edges of said eliminator blades which make first contact with said water droplet entrained air are formed with a ballistic nose of an air foil type leading edge to reduce resistance to air movement across said drift eliminator.
Claim 8
Dependent Claim 16 words
The invention of claim 1 wherein said eliminator blades are integrally formed of a plastic material.
Claim 9
Dependent Claim 15 words
The invention of claim 1 wherein said eliminator blades are integrally formed of polypropylene material.
Claim 10
Dependent Claim 15 words
The invention of claim 1 wherein said eliminator blades are integrally formed of polyvinyl-chloride material.
Claim 11
Dependent Claim 267 words
In combination with a water cooling tower having an air inlet, an air outlet and means for directing currents of air along a path of travel from said inlet to said outlet in substantially horizontal, intersecting relationship to water gravitating within the tower, a drift eliminator within the tower, disposed to remove droplets of water entrained in said air immediately prior to discharge of said air through said outlet; said drift eliminator including a plurality of eliminator panels comprising: a. a plurality of longitudinally extending eliminator blades supported at their respective ends by a pair of support members, said support members having a plurality of openings passing therethrough; b. said eliminator blades being of a cellular structure having longitudinally extending stiffening members dividing said blades into a plurality of sections; and c. pin means for securing said eliminator blades to said support members, said pin means having a head portion and a shank portion, said shank portion passing through said opening in said support member and grasping said blade stiffening member, said head portion being dimensioned to prevent passage of it through said support member opening; d. each of said eliminator blades being formed of first and second inclined sections having opposite slopes which are secured together at their converging ends by a third section of lesser width than said first and second sections, the end of said first section which makes first contact with said water droplet entrained air includes a ballistic nose section of an air foil-type leading edge attached thereto, said stiffening members defining the respective ends of said first, second and third sections.
Claim 12
Dependent Claim 267 words
In combination with a water cooling tower having an air inlet, an air outlet and means for directing currents of air along a path of travel from said inlet to said outlet in substantially horizontal, intersecting relationship to water gravitating within the tower, a drift eliminator within the tower, disposed to remove droplets of water entrained in said air immediately prior to discharge of said air through said outlet; said drift eliminator including a plurality of eliminator panels comprising: a. a plurality of longitudinally extending eliminator blades supported at their respective ends by a pair of support members, said support members having a plurality of openings passing therethrough; b. said eliminator blades being of a cellular structure having longitudinally extending stiffening members dividing said blades into a plurality of sections; and c. pin means for securing said eliminator blades to said support members, said pin means having a head portion and a shank portion, said shank portion passing through said opening in said support member and grasping said blade stiffening member, said head portion being dimensioned to prevent passage of it through said support member opening; d. each of said eliminator blades being formed of first and second inclined sections having opposite slopes which are secured together at their converging ends by a third section of lesser width than said first and second sections, the end of said first section which makes first contact with said water droplet entrained air includes a ballistic nose section of an air foil-type leading edge attached thereto, said stiffening members defining the respective ends of said first, second and third sections.
Claim 13
Dependent Claim 51 words
The invention of claim 10 wherein each end of each eliminator blades is secured to said supporting member by a pair of said pin means positioned to grasp the stiffener members associated with the ends of said first and second section which make first contact with said water droplet entrained air.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-07-30 1977-01-29 1977-07-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-30 1981-01-29 1981-07-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-30 1985-01-29 1985-07-31 $7700.00 Window Closed / Lapsed

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