US3304069A - Expansible cooler pad - Google Patents

Expansible cooler pad Download PDF

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Publication number
US3304069A
US3304069A US331055A US33105563A US3304069A US 3304069 A US3304069 A US 3304069A US 331055 A US331055 A US 331055A US 33105563 A US33105563 A US 33105563A US 3304069 A US3304069 A US 3304069A
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pad
cooler
water
absorbent material
frame
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US331055A
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Sr Oscar C Palmer
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/11—Cooling towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/41—Pad retaining means in humidifiers and air conditioners

Definitions

  • the present invention relates generally to the water absorbent cooler pads used in evaporative coolers. More specifically, the invention relates to replaceable cooler pads employed in evaporative coolers wherein water-absorbent material is positioned at the air intake and water is circulated over it, whereupon the air is drawn through the wet material resulting in evaporation of the water and consequent cooling of the air.
  • a problem with the usual evaporative cooler installation is that after operating a while, the cooler pad, bein g moist and also being positioned adjacent the intake, collects a considerable amount of dust and dirt which interferes with the efficiency of the cooler.
  • the remedy is to replace the dirty material with a new, clean supply.
  • the material is loose and is retained in position only by a frame in the cooler housing itself, and usually is excelsior or some similar substance.
  • the air intake passage must be carefully packed to fill the entire air passage to be sure all the air passes through the wet pad and not around it. This requires that the cooler be dismantled, repacked and reassembled, which is a time consuming and dirty job.
  • FIGURE 1 is a side elevation of an evaporative cooler showing the absorbent cooler pad in place.
  • FIGURE 2 is a perspective view of a compressed cooler pad in its envelope.
  • FIGURE 1 A side elevation of an evaporative type cooler is shown in FIGURE 1, in which a blower 10 actuated at the outlet '11 blows air out of the housing 12, drawing air into the housing through the inlet 13. Positioned peripherally about the inlet 13, is a frame 14 which holds the loose water-absorbent material 15 therein.
  • the frame 14 is provided with front and rear frames or screens 16 and 17 to retain the loose material 15 within frame 14.
  • Both top and bottom portions of frame 14 are provided with water distribution troughs or tubes with a number of holes 18 to allow free water circulation.
  • a pump 19 is normally provided to circulate the water 20 stored in the bottom of housing 12 up to the top of frame 14 where the water runs down through "ice the absorbent material '15 where it evaporates, cooling the air passing therethrough.
  • FIGURE 2 shows cooler pad 21 made in accordance with this invention.
  • the new pad 21 may be formed of excelsior, or other absorbent material.
  • the pad 21 is shaped to conform to the configuration of the frame 14 so that it will completely fill the air passage at inlet 13.
  • Envelope 22 retains the material 15 in the desired shape until put into use. If desired, the pad 21 may also be compressed to facilitate insertion of the pad into frame 14. In addition, when the envelope is removed expansion of the pad will assure complete packing of the air passage.
  • Envelope 22 is made of a water-soluble substance.
  • the new p-ad need only be inserted in the frame 14 and no packing is needed.
  • the water will dissolve the envelope, allowing the absorbent material to expand, filling the frame.
  • the efficiency of the cooler is restored quickly, neatly and economically. Storage problems of loose excelsior are completely eliminated, and sales appeal of the pads definitely enhanced.
  • a film based on polyvinyl alcohol resin sold under the trade name Gelvatol may be used. Also, a film may he made from sodium carboxymethylcellulose or other methylcellulosic derivatives. A film having a moderate amount of strength has also been made from starch.
  • a water-absorbent material for use in evaporative coolers having an air inlet and discharge outlet, the combination comprising a quantity of absorbent material shaped into a pad to conform to the configuration of the air inlet, and a water soluble envelope enclosing said pad and retaining it in said configuration.
  • a water-absorbent material for use in evaporative coolers having an air inlet and discharge outlet and a cooling pad frame
  • the combination comprising a quantity of absorbent material in the form of a pad, said pad shaped to conform to the configuration of the air inlet and adapted to be received in the cooling pad frame, an envelope enclosing said pad and retaining it in said configuration, said envelope consisting of a substance which will dissolve when water circulating in the cooler comes in contact therewith, said absorbent material thereupon expanding to fill said cooling pad frame.
  • a water-absorbent material for use in evaporative coolers having an air inlet and discharge outlet, the combination comprising a quantity of absorbent material compressed into the form of a pad, said pad being shaped to conform to the configuration of the air inlet, and a water soluble envelope enclosing said pad and retaining it in its compressed state.
  • water-absorbent material for use in evaporative coolers having an air inlet and discharge outlet and a cooling pad frame
  • the combination comprising a quantity of absorbent material compressed into the form of a pad, said'pad being shaped to conform to the configuration of the air inlet and adapted to be received in the cooling pad frame, an envelope enclosing said pad and retaining it in compressed state, said envelope consisting of a substance which will dissolve when Water circulating in the cooler comes in contact therewith, said absorbent material thereupon expanding-to fill said cooling pad frame.
  • said envelope comprises a water soluble film consisting of sodium carboxymethylcellulose.
  • An article of the type described in claim 9 where- 4 in said envelope comprises a water soluble film consisting of polyvinyl alcohol resin.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Description

Feb. 14, 1967 M R 3,304,069-
EXPANSIBLE COOLER PAD Filed Dec. 16, 1963 INVENTOR. 0.564,? 6. PAM/145E, .58
BY i
United States Patent 3,304,069 EXPANSIBLE COOLER PAD Oscar C. Palmer, Sr., 2235 W. McDowell Road, Phoenix, Ariz. 85009 Filed Dec. 16, 1963, Ser. No. 331,055 Claims. (Cl. 261-94) The present invention relates generally to the water absorbent cooler pads used in evaporative coolers. More specifically, the invention relates to replaceable cooler pads employed in evaporative coolers wherein water-absorbent material is positioned at the air intake and water is circulated over it, whereupon the air is drawn through the wet material resulting in evaporation of the water and consequent cooling of the air.
A problem with the usual evaporative cooler installation is that after operating a while, the cooler pad, bein g moist and also being positioned adjacent the intake, collects a considerable amount of dust and dirt which interferes with the efficiency of the cooler. The remedy is to replace the dirty material with a new, clean supply. The material is loose and is retained in position only by a frame in the cooler housing itself, and usually is excelsior or some similar substance. The air intake passage must be carefully packed to fill the entire air passage to be sure all the air passes through the wet pad and not around it. This requires that the cooler be dismantled, repacked and reassembled, which is a time consuming and dirty job.
It is the object therefore of the present invention, to provide a packaged cooler pad allowing a convenient means for replacing old absorbent material in an evaporative cooler.
It is another object of the present invention to provide a packaged cooler pad shaped to fit into the space adjacent the air inlet whereupon said pad can be allowed to fill the entire inlet passage when the package is removed.
It is a further object of the invention to provide a means of packaging loose absorbent material which may be compressed, shaped to fit into a frame adjacent the air inlet of an evaporative cooler, whereupon said packaging is removed allowing the material to expand and fill the said frame.
It is a further object of this invention to provide a packaged cooler pad conveniently stored .by manufacturers and retailers without mess or fear of expansion prior to use.
Other important features and advantages which are believed to be novel are set forth in detail in the accompanying specifications which may be more readily understood when read with the accompanying drawings, in which:
FIGURE 1 is a side elevation of an evaporative cooler showing the absorbent cooler pad in place.
FIGURE 2 is a perspective view of a compressed cooler pad in its envelope.
A side elevation of an evaporative type cooler is shown in FIGURE 1, in which a blower 10 actuated at the outlet '11 blows air out of the housing 12, drawing air into the housing through the inlet 13. Positioned peripherally about the inlet 13, is a frame 14 which holds the loose water-absorbent material 15 therein. The frame 14 is provided with front and rear frames or screens 16 and 17 to retain the loose material 15 within frame 14. Both top and bottom portions of frame 14 are provided with water distribution troughs or tubes with a number of holes 18 to allow free water circulation.
A pump 19 is normally provided to circulate the water 20 stored in the bottom of housing 12 up to the top of frame 14 where the water runs down through "ice the absorbent material '15 where it evaporates, cooling the air passing therethrough.
FIGURE 2 shows cooler pad 21 made in accordance with this invention. When the material 15 in the cooler requires changing it is removed and a new pad inserted. The new pad 21 may be formed of excelsior, or other absorbent material. The pad 21 is shaped to conform to the configuration of the frame 14 so that it will completely fill the air passage at inlet 13. Envelope 22 retains the material 15 in the desired shape until put into use. If desired, the pad 21 may also be compressed to facilitate insertion of the pad into frame 14. In addition, when the envelope is removed expansion of the pad will assure complete packing of the air passage. Envelope 22 is made of a water-soluble substance.
The new p-ad need only be inserted in the frame 14 and no packing is needed. When the cooler is operated, the water will dissolve the envelope, allowing the absorbent material to expand, filling the frame. Thus, the efficiency of the cooler is restored quickly, neatly and economically. Storage problems of loose excelsior are completely eliminated, and sales appeal of the pads definitely enhanced.
There are several materials available from which satisfactory dissolvable envelopes can be made. A film based on polyvinyl alcohol resin sold under the trade name Gelvatol may be used. Also, a film may he made from sodium carboxymethylcellulose or other methylcellulosic derivatives. A film having a moderate amount of strength has also been made from starch.
While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from this invention in its broader aspects, and, therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true scope and spirit of this invention.
I claim:
1. In a water-absorbent material for use in evaporative coolers having an air inlet and discharge outlet, the combination comprising a quantity of absorbent material shaped into a pad to conform to the configuration of the air inlet, and a water soluble envelope enclosing said pad and retaining it in said configuration.
2. In a water-absorbent material for use in evaporative coolers having an air inlet and discharge outlet and a cooling pad frame, the combination comprising a quantity of absorbent material in the form of a pad, said pad shaped to conform to the configuration of the air inlet and adapted to be received in the cooling pad frame, an envelope enclosing said pad and retaining it in said configuration, said envelope consisting of a substance which will dissolve when water circulating in the cooler comes in contact therewith, said absorbent material thereupon expanding to fill said cooling pad frame.
3. An article of the type described in claim 2 wherein said absorbent material consists of Wood excelsior.
4. An article of the type described in claim 2 wherein said envelope comprises a water-soluble film consisting of polyvinyl alcohol resin.
5. In a water-absorbent material for use in evaporative coolers having an air inlet and discharge outlet, the combination comprising a quantity of absorbent material compressed into the form of a pad, said pad being shaped to conform to the configuration of the air inlet, and a water soluble envelope enclosing said pad and retaining it in its compressed state.
6. In water-absorbent material for use in evaporative coolers having an air inlet and discharge outlet and a cooling pad frame, the combination comprising a quantity of absorbent material compressed into the form of a pad, said'pad being shaped to conform to the configuration of the air inlet and adapted to be received in the cooling pad frame, an envelope enclosing said pad and retaining it in compressed state, said envelope consisting of a substance which will dissolve when Water circulating in the cooler comes in contact therewith, said absorbent material thereupon expanding-to fill said cooling pad frame. 7
7. An article of the type described in claim 6 wherein said envelope comprises a water soluble film consisting of polyvinyl alcohol resin.
8. An article of the type described in claim 6 wherein said envelope comprises a water soluble film consisting of sodium carboxymethylcellulose.
9. An article of the type described in claim 6 Wherein said absorbent material consists of wood excelsior.
10. An article of the type described in claim 9 where- 4 in said envelope comprises a water soluble film consisting of polyvinyl alcohol resin.
References Cited by the Examiner UNITED STATES-PATENTS 2,138,874 12/1938bMyers 55 359 2,404,479 7/1946 Essick.
2,750,027 6/1956 Cummings 206-05 2,856,166 10/1958 GOEttl 261-29 3,191,666 6/1965 Brandt.-
' FOREIGN PATENTS 352,960 7/1931 Great Britain.
HARRY B. THORNTONfPrimury Examiner. T. R. MILES, Assistant Examiner.

Claims (1)

1. IN A WATER-ABSORBENT MATERIAL FOR USE IN EVAPORATIVE COOLERS HAVING AN AIR INLET AND DISCHARGE OUTLET, THE COMBINATION COMPRISING A QUANTITY OF ABSORBENT MATERIAL SHAPED INTO A PAD TO CONFORM TO THE CONFIGURATION OF THE AIR INLET, AND A WATER SOLUBLE ENVELOPE ENCLOSING SAID PAD AND RETAINING IT IN SAID CONFIGURATION.
US331055A 1963-12-16 1963-12-16 Expansible cooler pad Expired - Lifetime US3304069A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215079A (en) * 1978-03-22 1980-07-29 Donaldson Company, Inc. Method and apparatus for contacting liquids and gases
FR2468847A1 (en) * 1979-10-31 1981-05-08 Erevansky Politekhn Insti Ejector type room air conditioner in central system - has sprinkler heat exchanger attachment, and bottom shell piece linked to air humidifier
US4324749A (en) * 1977-06-14 1982-04-13 Akzona Incorporated Three-dimensional exchange element for liquid guidance in liquid-gas contact systems
US4902449A (en) * 1988-09-22 1990-02-20 Hobbs Bonded Fibers Evaporative cooler pad and method of forming same
US5340651A (en) * 1991-10-16 1994-08-23 Hollinee Corporation Glass fiber evaporative cooler media, method of forming same, use thereof in an evaporative cooling method, and an evaporative cooler apparatus utilizing glass fiber cooling media
US5776380A (en) * 1996-11-15 1998-07-07 Kem-Wove Incorporated Chemical and microbiological resistant evaporative cooler media and processes for making the same
WO2011030181A1 (en) * 2009-09-10 2011-03-17 General Electric Company Systems and methods for assembling an evaporative cooler
US20120047937A1 (en) * 2010-08-24 2012-03-01 James David Cass Indirect Evaporative Cooling System
US10900724B1 (en) * 2020-04-13 2021-01-26 Anthony Staniulis, Jr. Indirect and direct evaporative cooling system
US10900679B1 (en) * 2020-04-13 2021-01-26 Anthony Staniulis, Jr. Evaporative cooler and system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB352960A (en) * 1930-01-14 1931-07-14 Hall & Kay Ltd Improvements in or relating to means for filtering air and other gases
US2138874A (en) * 1936-03-05 1938-12-06 Owens Illinois Glass Co Filter unit
US2404479A (en) * 1944-08-30 1946-07-23 Essick Bryant Evaporative cooler
US2750027A (en) * 1951-08-21 1956-06-12 Cummings Molly Visual indicating devices for producing a color slick or patch at sea or in any waters
US2856166A (en) * 1956-09-06 1958-10-14 Internat Metal Products Co Evaporative cooler and bleedoff means therefor
US3191666A (en) * 1963-11-22 1965-06-29 Appbau Rothemuhle Dr Brandt & Regenerative fluid heater

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB352960A (en) * 1930-01-14 1931-07-14 Hall & Kay Ltd Improvements in or relating to means for filtering air and other gases
US2138874A (en) * 1936-03-05 1938-12-06 Owens Illinois Glass Co Filter unit
US2404479A (en) * 1944-08-30 1946-07-23 Essick Bryant Evaporative cooler
US2750027A (en) * 1951-08-21 1956-06-12 Cummings Molly Visual indicating devices for producing a color slick or patch at sea or in any waters
US2856166A (en) * 1956-09-06 1958-10-14 Internat Metal Products Co Evaporative cooler and bleedoff means therefor
US3191666A (en) * 1963-11-22 1965-06-29 Appbau Rothemuhle Dr Brandt & Regenerative fluid heater

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324749A (en) * 1977-06-14 1982-04-13 Akzona Incorporated Three-dimensional exchange element for liquid guidance in liquid-gas contact systems
US4215079A (en) * 1978-03-22 1980-07-29 Donaldson Company, Inc. Method and apparatus for contacting liquids and gases
FR2468847A1 (en) * 1979-10-31 1981-05-08 Erevansky Politekhn Insti Ejector type room air conditioner in central system - has sprinkler heat exchanger attachment, and bottom shell piece linked to air humidifier
US4902449A (en) * 1988-09-22 1990-02-20 Hobbs Bonded Fibers Evaporative cooler pad and method of forming same
US5340651A (en) * 1991-10-16 1994-08-23 Hollinee Corporation Glass fiber evaporative cooler media, method of forming same, use thereof in an evaporative cooling method, and an evaporative cooler apparatus utilizing glass fiber cooling media
US5622776A (en) * 1991-10-16 1997-04-22 Hollinee Corporation Coated glass fiber for use in evaporative cooler media and method of forming same
US5776380A (en) * 1996-11-15 1998-07-07 Kem-Wove Incorporated Chemical and microbiological resistant evaporative cooler media and processes for making the same
WO2011030181A1 (en) * 2009-09-10 2011-03-17 General Electric Company Systems and methods for assembling an evaporative cooler
GB2487146A (en) * 2009-09-10 2012-07-11 Gen Electric Systems and methods for assembling an evaporative cooler
US20120047937A1 (en) * 2010-08-24 2012-03-01 James David Cass Indirect Evaporative Cooling System
US10900724B1 (en) * 2020-04-13 2021-01-26 Anthony Staniulis, Jr. Indirect and direct evaporative cooling system
US10900679B1 (en) * 2020-04-13 2021-01-26 Anthony Staniulis, Jr. Evaporative cooler and system
WO2021211152A1 (en) * 2020-04-13 2021-10-21 Staniulis Jr Anthony An evaporative cooler and system
WO2021211151A1 (en) * 2020-04-13 2021-10-21 Staniulis Jr Anthony An indirect and direct evaporative cooling system

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