US3121480A - Evaporative cooler and pad frame latch means therefor - Google Patents

Evaporative cooler and pad frame latch means therefor Download PDF

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Publication number
US3121480A
US3121480A US18758662A US3121480A US 3121480 A US3121480 A US 3121480A US 18758662 A US18758662 A US 18758662A US 3121480 A US3121480 A US 3121480A
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United States
Prior art keywords
latch
frame
pad frame
pad
evaporative cooler
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Adam D Goettl
Goettl John
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Meritor Inc
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McGraw Edison Co
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Filing date
Publication date
Priority claimed from US862396A external-priority patent/US3071218A/en
Application filed by McGraw Edison Co filed Critical McGraw Edison Co
Priority to US18758662 priority Critical patent/US3121480A/en
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Publication of US3121480A publication Critical patent/US3121480A/en
Anticipated expiration legal-status Critical
Assigned to ARVIN INDUSTRIES, INC.; 1531 EAST 13TH ST., COLUMBUS, IN. 47201 A CORP. OF IN. reassignment ARVIN INDUSTRIES, INC.; 1531 EAST 13TH ST., COLUMBUS, IN. 47201 A CORP. OF IN. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MCGRAW-EDISON COMPANY
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D7/00—Devices using evaporation effects without recovery of the vapour
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0894—Spring arm
    • Y10T292/0895—Operating means
    • Y10T292/0902—Rigid

Definitions

  • This invention relates to a pad frame latch means for evaporative coolers and more particularly to a latch means for evaporative coolers which functions to provide facility in the removal of pad frames from evaporative coolers.
  • Another object of the invention is to provide a pad frame latch means for evaporative coolers wherein a spring loaded latch member normally tends to hold a pad frame securely in position relative to the main frame of an evaporative cooler whereby the latch may be actuated against its spring loading to remove a pad frame from the main frame of the evaporative cooler.
  • FIG. 2 is an enlarged vertical fragmentary sectional view taken from the line 22 of FIG. 1;
  • each pad frame 28 is provided with air inlet louvers 30 and inwardly thereof, each pad frame supports a fibrous evaporative cooler pad which is generally operated in wet condition whereby air passing through the louvers 30 evaporates moisture in the fibrous material of the pad and the air is thus cooled for delivery to a dwelling.
  • a pad frame latch means for evaporative coolers the combination of: an evaporative cooler main frame having a pad frame latch portion; an evaporative cooler pad frame supported therein; a latch lever secured in said evaporative cooler pad frame; spring means tending to hold said latch lever in one direction; a latch portion of said latch lever normally projecting from said cooler pad frame and engaging said latch portion of said main frame; said latch lever manually movable to deflect said latch portions thereof away from said latch portion of said main frame to permit removal of said pad frame relative thereto; said spring means being an integral torsion bar portion of said latch lever; upper, lower and side edges of said pad frame surrounded by said main frame, thereby normally obstructing manual access to the inner side of said pad frame; said pad frame having an opening in its outer sides; a handle portion of said latch lever operable through said opening and forming a handle for manual operation of said latch lever from the outer side of said pad frame.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)

Description

Feb. 18, 1964 A. D. GOETTL ETAL 3,121,480
EVAPORATIVE COOLER AND P AD FRAME LATCH MEANS THEREFOR Original Filed Dec 28, 1959 INVENTORS ADAM D. GOETTL AND BY JOHN GOETTL United States Patent This invention relates to a pad frame latch means for evaporative coolers and more particularly to a latch means for evaporative coolers which functions to provide facility in the removal of pad frames from evaporative coolers.
The present application is a division of our former application for an Evaporative Cooler and Pad Frame Latch Means Therefor, Serial No. 862,396, filed December 28, 1959, now Patent No. 3,071,218.
Various devices have been used to retain evaporative cooler pad frames in position with respect to the main frame of an evaporative cooler, however, many of these devices are difficult to operate or require tools for the removal or replacement of pad frames with respect to the main frame of an evaporative cooler.
Accordingly, it is an object of the present invention to provide a pad frame latch means for evaporative coolers which is manually operable without the use of tools and which provides facility in the removal or replacement of an evaporative cooler pad frame relative to the main frame of an evaporative cooler.
Another object of the invention is to provide a pad frame latch means for evaporative coolers wherein a spring loaded latch member normally tends to hold a pad frame securely in position relative to the main frame of an evaporative cooler whereby the latch may be actuated against its spring loading to remove a pad frame from the main frame of the evaporative cooler.
Another object of the invention is to provide a pad frame latch means for evaporative coolers which provides manually movable detent action at the upper corners of an evaporative cooler pad frame whereby the release of the latch means permits the upper edge of the evaporative cooler to be pivoted outwardly about a fulcrum point on the main frame of the evaporative cooler, adjacent the lower edge of said pad frame, thereby greatly facilitating the installation or removal of an evaporative cooler pad frame from the main frame of an evaporative cooler.
Another object of the invention is to provide a pad frame latch means for evaporative coolers wherein a cooler pad frame is provided with a fulcrum bearing near its lower edge which bears upon a portion of the main frame of an evaporative cooler thereby permitting the upper edge of the evaporative cooler pad frame to be pivotal relative to the main frame and laterally thereof whereby, resiliently loaded latch means engages the upper edge of the pad frame relative to the main frame of the evaporative cooler when pivoted into flush position with the side thereof.
Another object of the invention is to provide a pad frame latch means for evaporative cooler which generally facilitates and improves the installation and removal functions of pad frames relative to evaporative cooler main frames.
A further object of the invention is to provide a pad frame latch means for evaporative coolers which is very simple and economical of construction and which is very durable in operation.
Further objects and advantages of the invention may be apparent from the following specification, appended claims and accompanying drawings, in which:
FIG. 1 is a perspective view of an evaporative cooler 3 Claims.
3,121,48h Patented Feb. 18, 1964 showing a pad frame latch means thereon and constructed in accordance with the present invention;
FIG. 2 is an enlarged vertical fragmentary sectional view taken from the line 22 of FIG. 1;
FIG. 3 is an enlarged fragmentary sectional view taken from the line 33 of FIG. 1 showing the latch means of the invention supported on a pad frame member of an evaporative cooler; and
FIG. 4 is a fragmentary sectional view taken from the line 4-4 of FIG. 3.
As shown in FIG. 1, an evaporative cooler 2i) is provided with a top pan 22 and a sump pan 24. These pans 22 and 24 are interconnected by corner frame members 26 thereby forming a main frame for the evaporative cooler. Removably positioned in the main frame of the evaporative cooler between the corner members 26 and forming sides of the evaporative cooler are evaporative cooler pad frames 28. The pad frames at their upper, lower and side edges are surrounded by the top pan 20, corner frame member 26 and the sump pan 24, respectively. These pad frames 28 are provided with air inlet louvers 30 and inwardly thereof, each pad frame supports a fibrous evaporative cooler pad which is generally operated in wet condition whereby air passing through the louvers 30 evaporates moisture in the fibrous material of the pad and the air is thus cooled for delivery to a dwelling.
The normally lower edges 32 of the pad frames 28 are provided with ledge bearing portions 34, as shown best in FIG. 2 of the drawings. These ledge bearing portions 34 are arcuate in cross section and rest upon a fulcrum edge 36 which is actually the upper edge of the pan 24. Thus, the pad frames 28 are pivotally mounted on the upper edge 36 of the pan 24 and may be pivoted outwardly in the direction of the arrow A when released by the pad frame latch means of the invention.
In the modification as shown in FIGS. 3 and 4 of the drawings, the pad frame 2 8 is provided with a slot 108 in its front side 54, and movably mounted in this slot is a latch lever 110 provided with an angularly offset portion 112 which engages an inwardly directed edge 1.14 of the corner frame member 26 similar to that hereinbefore described. An angular surface L16 of the angularly offset portion 112 is so arranged that it provides a cammin-g action at the edge 114- when normal resilience of the latch lever tends to force it in a direction of the arrow L, shown in FIG. 3 of the drawings. This latch lever, at its angular portion 112, projects through an opening 113 in a side wall of the pad frame 28.
The latch lever extends backwardly to the: rear of the frame 28 and is integral with a torsion bar portion .12 which extends downwardly therefrom along the back of the frame and is provided with an inwardly extending portion 122 which is anchored at its end 124 in a slat 126 in the side wall of the cooler pad frame 28.
The latch lever 110- at its outer end is provided with a loop 128 which serves as a handle for actuation thereof.
In operation, the latch lever 128 is manually shifted rom the solid line position to a broken line position M which moves the angular latch portion 112 out of interference with the edge portion 114 of the corner frame member 26 thereby permitting pivotal removal of the pad frame 28 outwardly in the direction of the arrow A, as shown in FIG. 2 of the drawings.
The torsion bar spring portion of the latch lever 1:10 always tends to maintain the latch lever 128 in the solid line position wherein the angular latch portion 112 at its angular cam surf-ace L16 engages the edge 114 of the corner frame member 26.
It will be obvious to those skilled in the art that various modifications of the present invention may be resorted to in a manner limited only by a just interpretation of the following claims.
We claim:
1. in a pad frame latch means for evaporative coolers the combination of: an evaporative cooler main frame having a pad frame latch portion; an evaporative cooler pad frame supported therein; a latch lever secured in said evaporative cooler pad frame; spring means tending to hold said latch lever in one direction; a latch portion of said latch lever normally projecting from said cooler pad frame and engaging said latch portion of said main frame; said latch lever manually movable to deflect said latch portions thereof away from said latch portion of said main frame to permit removal of said pad frame relative thereto; said spring means being an integral torsion bar portion of said latch lever; upper, lower and side edges of said pad frame surrounded by said main frame, thereby normally obstructing manual access to the inner side of said pad frame; said pad frame having an opening in its outer sides; a handle portion of said latch lever operable through said opening and forming a handle for manual operation of said latch lever from the outer side of said pad frame.
2. In a pad frame latch means for evaporative coolers the combination of: an evaporative cooler main frame provided with corner members, each having a latch portion; an evaporative cooler pad frame adjacent thereto; a latch lever secured in each evaporative cooler pad frame; spring means of said latch lever tending to hold it in one direction; a latch portion of said latch lever normally projecting from said cooler pad frame in said one direction and engaging said latch portion of a respective corner frame member; said latch lever manually movable to deflect said latch portion thereof away from said latch portion of said respective corner frame member to permit removal of said pad frame relative thereto; said spring means being an integral torsion bar portion of said latch lever; upper, lower and side edges of said pad frame surrounded by said main frame, thereby normally obstructing manual access to the inner side of said pad frame; said pad frame having an opening in its outer sides; a handle of said latch lever operable through said opening and fonming a handle for manual operation of said latch lever from the outer sides of said pad frame.
3. In a pad frame latch means for evaporative coolers the combination of: an evaporative cooler main frame provided with corner frame members, each having a latch portion; an evaporative cooler pad frame adjacent thereto; a latch lever secured in said evaporative cooler pad frame; said latch lever provided with spring means tending to hold it in one direction; a latch portion of said latch lever normally projecting from said cooler pad frame to the outer side theerof and in one direction and engaging a latch 'portion of said corner frame member; said latch lever manually movable to deflect the latch portion thereof away from said latch portion of said corner frame member to permit removal of said pad frame relative thereto; upper, lower and side edges of said pad frame surrounded by said main frame, thereby normally obstructing manual access to the inner side of said pad frame; said pad frame having an opening in its outer side; a handle of said latch lever projecting and operable through said opening and forming a handle for manual operation of said latch lever from the outer side of said pad frame.
References Cited in the file of this patent UNITED STATES PATENTS 2,289,214 Schultz July 7, 1942 2,497,453 Hazen Feb. 14, 1950 2,560,506 Despard July 10, 1951 2,610,893 Collins Sept. 16, 1952 2,637,540 Rowe May 5, 1953 2,856,166 Goettl Oct. 14, 1958

Claims (1)

1. IN A PAD FRAME LATCH MEANS FOR EVAPORATIVE COOLERS THE COMBINATION OF: AN EVAPORATIVE COOLER MAIN FRAME HAVING A PAD FRAME LATCH PORTION; AN EVAPORATIVE COOLER PAD FRAME SUPPORTED THEREIN; A LATCH LEVER SECURED IN SAID EVAPORATIVE COOLER PAD FRAME; SPRING MEANS TENDING TO HOLD SAID LATCH LEVER IN ONE DIRECTION; A LATCH PORTION OF SAID LATCH LEVER NORMALLY PROJECTING FROM SAID COOLER PAD FRAME AND ENGAGING SAID LATCH PORTION OF SAID MAIN FRAME; SAID LATCH LEVER MANUALLY MOVABLE TO DEFLECT SAID LATCH PORTIONS THEREOF AWAY FROM SAID LATCH PORTION OF SAID MAIN FRAME TO PERMIT REMOVAL OF SAID PAD FRAME RELATIVE THERETO; SAID SPRING MEANS BEING AN INTEGRAL TORSION BAR PORTION OF SAID LATCH LEVER; UPPER, LOWER AND SIDE EDGES OF SAID PAD FRAME SURROUNDED BY SAID MAINE FRAME, THEREBY NORMALLY OBSTRUCTING MANUAL ACCESS TO THE INNER SIDE OF
US18758662 1959-12-28 1962-04-16 Evaporative cooler and pad frame latch means therefor Expired - Lifetime US3121480A (en)

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US18758662 US3121480A (en) 1959-12-28 1962-04-16 Evaporative cooler and pad frame latch means therefor

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US862396A US3071218A (en) 1959-12-28 1959-12-28 Evaporative cooler and pad frame latch means therefor
US18758662 US3121480A (en) 1959-12-28 1962-04-16 Evaporative cooler and pad frame latch means therefor

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714780A (en) * 1971-06-30 1973-02-06 Gen Motors Corp Vehicle brake control module and mounting means
EP0070560A2 (en) * 1981-07-21 1983-01-26 Laurentius Pohlmeyer Water heating installation
US4673100A (en) * 1985-10-25 1987-06-16 Burroughs Corporation Equipment enclosure fastening means

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289214A (en) * 1940-09-20 1942-07-07 Stratton & Terstegge Company Top pan member for minnow buckets
US2497453A (en) * 1948-09-17 1950-02-14 Hazen Adelbert Gorden Knockdown box construction
US2560506A (en) * 1948-06-18 1951-07-10 Pass & Seymour Inc Mounting strap for interchangeable wiring devices
US2610893A (en) * 1949-01-11 1952-09-16 Owens Corning Fiberglass Corp Gas and liquid contact pad
US2637540A (en) * 1949-05-05 1953-05-05 Res Prod Corp Gas-liquid contact apparatus
US2856166A (en) * 1956-09-06 1958-10-14 Internat Metal Products Co Evaporative cooler and bleedoff means therefor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289214A (en) * 1940-09-20 1942-07-07 Stratton & Terstegge Company Top pan member for minnow buckets
US2560506A (en) * 1948-06-18 1951-07-10 Pass & Seymour Inc Mounting strap for interchangeable wiring devices
US2497453A (en) * 1948-09-17 1950-02-14 Hazen Adelbert Gorden Knockdown box construction
US2610893A (en) * 1949-01-11 1952-09-16 Owens Corning Fiberglass Corp Gas and liquid contact pad
US2637540A (en) * 1949-05-05 1953-05-05 Res Prod Corp Gas-liquid contact apparatus
US2856166A (en) * 1956-09-06 1958-10-14 Internat Metal Products Co Evaporative cooler and bleedoff means therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714780A (en) * 1971-06-30 1973-02-06 Gen Motors Corp Vehicle brake control module and mounting means
EP0070560A2 (en) * 1981-07-21 1983-01-26 Laurentius Pohlmeyer Water heating installation
EP0070560A3 (en) * 1981-07-21 1983-08-03 Laurentius Pohlmeyer Water heating installation
US4673100A (en) * 1985-10-25 1987-06-16 Burroughs Corporation Equipment enclosure fastening means

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Owner name: ARVIN INDUSTRIES, INC.; 1531 EAST 13TH ST., COLUMB

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MCGRAW-EDISON COMPANY;REEL/FRAME:004004/0154

Effective date: 19820604