|Publication number||US2991707 A|
|Publication date||Jul 11, 1961|
|Filing date||May 18, 1959|
|Priority date||Aug 20, 1957|
|Publication number||US 2991707 A, US 2991707A, US-A-2991707, US2991707 A, US2991707A|
|Inventors||Goettl Albert B|
|Original Assignee||Mc Graw Edison Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (1), Referenced by (4), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
July 11, 1961 A. B. GOETTL AIR DIRECTING LOUVER DEVICE Original Filed Aug. 20, 1957 INVENTOR. A LBERT B. GOETTL United States Patent 2,991,707 AIR DIRECTING LOUV'ER DEVICE Albert B. Goettl, Phoenix, Ariz., assignor to McGraw- Edison Company, Elgin, 111., a corporation of Delaware Original application Aug. 20, 1957, Ser. No. 679,223,
now Patent No. 2,895,401, dated July 21, 1959. Divided and this application May 18, 1959, Ser. No. 813,836
2 Claims. (Cl. 98-40) The present invention relates to an air directing louver device.
This application is a division of my copending application for Air Directing Louver Device, Serial No. 679,223, filed August 20, 1957, now Patent No. 2,895,401, dated July 21, 1959.
In the construction of air directing louver devices employing intersecting notched slats various devices have been employed for holding the notches of such intersecting slats in mesh or engaged relation with each other during the fiow of air between the slats. Furthermore, it has been a problem to provide simple means for holding such slats in various adjusted positions relative to each other and within a frame which circumscribes the assembly of the intersecting slats.
According to the present invention a plurality of intersecting louver slats are provided with meshing notch portions having inwardly directed notch extremities wherein arcuate bearings interconnect the slats. The centers of the arcuate bearings form pivotal axes for the slats and permit them to pivot within the angular limits of the notches of these slats while the arcuate bearings also provide frictional interengagement of the slats to hold them in various angularly adjusted positions relative to each other.
The present improvements in air directing louver construction are particularly adapted to the use of plastic materials which may have sufficient resilience to provide for frictional loading of interengaging arcuate bearings which interconnect the slats at their intersecting notch portions.
It is an object of the present invention to provide an air directing louver device wherein arcuate bearings, at the inner extremities of meshing notches in intersecting slats, interconnect the intersecting slats on their pivotal axes.
Another object of the invention is to provide an improved air directing louver construction particularly for use in the assembly of slats in frames.
Further objects and advantages of the present invention may be apparent from the following specification, appended claims and accompanying drawings in which:
FIG. 1 is a fragmentary side elevational view of an air directing louver device including a plurality of intersect ing slats contained in a substantially rectangular frame.
FIG. 2 is a fragmentary sectional view taken from the line 22 of FIG. 1; and
FIG. 3 is a fragmentary sectional view taken from the line 33 of FIG. 1.
As shown in FIG. 1 of the drawings, the present air directing louver device is provided with a frame which is substantially rectangular and is provided with side elements 12 having flange portions 14 adapted to surround an opening in which the frame 10 may be inserted. The frame is provided with a plurality of integral spaced parallel slats 16 having substantially V-shaped notch portions 18 therein. These V-shaped notch portions are provided with arcuate concave cylindrical bearing portions 20 at their inner extremities and the notches 18 diverge outwardly to a common edge 22 of the slats 16.
2,991,707 Patented July 11, 1961 A plurality of slats 24 are disposed at substantially right angles to the slats 16 and intersect the same. The slats 24 are provided with U-shaped notch portions 26 having parallel sides which straddle the slats 16 and at the inner extremity of the notch portions 26 are arcuate in cross section convex surfaced cylindrical bearing portions 28 which are integral with the slats 24.
The arcuate bearings 28 are engaged in the arcuate recesses of the slats 16 and the arcuate bearing portions 20 extend substantially more than degrees around the arcuate bearing portions 28. It will be noted that the bearings 28 are tightly fitted in the arcuate recesses 20*. The resilience of the plastic material of the slats 16 at the arcuate bearing portions 20 grip the bearing portions 28, provide sufiicient friction so that the slats 24, when pivoted within the angular notch portions '18, will remain in adjusted position.
In operation, the slats 24 may be pivoted relative to the slats 16 within the angular limits of the V-shaped notches 18 while the arcuate bearing portions 20 grip the arcuate bearing portions 28 due to resilience of the plastic material in the slats 16. Thus, the slats 24 may be pivoted to various angular positions at which they will remain during vigorous flow of air through the louver slats; thus the slats are prevented from buffeting or moving out of adjusted position while air is being directed through the louver slats to a location in a building room as desired. The bearing portions 28, which are resilient, are snapped into the concave arcuate bearing portions and provide a very simple arrangement for initial assembly of the louver slats in intersecting relationship with each other.
Various modifications of the present invention may be resorted to in a manner limited only by a just interpretation of the following claims.
1. In a louver slat construction the combination of: a frame; a first slat fixed in said frame and having a substantially V-shaped notch; a second slat intersecting said first slat and having a U-shaped notch meshing with the V-shaped notch of said first slat; inner portions of said notches of said slats being adjacent each other and each provided with arcuate cylindrically shaped bearing structure, said arcuate bearing structures having a concentric pivotal axis for one of said slats relative to the other and permitting movement of one slat within the angular limits of said V-shaped notch in the other slat, said arcuate cylindrically shaped bearing structure of one slat being frictionally engaged for more than 180 degrees around the arcuate cylindrical bearing structure of the other one of said slats thereby pivotally interconnecting said first and second slats and maintaining them in engagement at their meshing notch portions.
2. In a louver slat construction the combination of: a frame; first slats stationary in said frame and each having a substantially V-shaped notch; second slats intersecting said first slats and each having U-shaped notches meshing with the V-shaped notches of said first slats; inner portions of said notches of said second slats provided with an arcuate integral cylindrical bearing structure, said first slats at the apex portion of said V-shaped notches having arcuate cylindrical recesses conforming with and frictionally engaging said cylindrical bearing structure for more than 180 degrees about their arcuate structure.
References Cited in the file of this patent UNITED STATES PATENTS 2,895,401 Goettl July 21, 1959
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2895401 *||Aug 20, 1957||Jul 21, 1959||Internat Metal Products Compan||Air directing louver device|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3145642 *||Jun 8, 1960||Aug 25, 1964||Air Guide Plastics Corp||Multi-louver grill|
|US4970947 *||Sep 25, 1989||Nov 20, 1990||Siemens Aktiengesellschaft||Air outlet for interior spaces, particularly for the interior space of a motor vehicle|
|US5364303 *||Jul 9, 1993||Nov 15, 1994||Summit Polymers, Inc.||Air vent adjustable vanes for controlling air flow direction|
|US6315657||Jan 24, 2000||Nov 13, 2001||E. H. Price Limited||Air outlet grille with louver indexing adjustment means|
|International Classification||F24F13/075, F24F13/06|