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Патент USA US2500330

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March 14, [email protected]
2,500,330
H. I. STOVER
GRILLE
Filed Jan. l5, 1947
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H770 NEX'
Patented Mar. 14, 1950
'2,500,330
UNITED STATES PATENT OFFICE
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'2,500,330
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GRILLE
Hugh I. s't'qver, Glendale, Calif'.
Application January 13, wirfse‘riainm 721,746
1_
1 Claim.
2
. The principai object army invention istiìe pro
in either direction up to an angle of 45° as in
vision of an air ñow grille wherein structural
characteristics make possible reduced static pres
dicated by broken lines in Fig. 4.
The blades I3 are in general, tear drop shaped
with long trailing sides so that air currents break
ing against the thick edge of said blades are in
duced to iiow freely past the blades with a vac
uum pull at the trailing edges and with less static
sure, an increased volume of air and greater
C. F. M. at the face of the grille than is possible
with any standard grille the open market affords;
An important object of the herein invention
is the provision of a grille providing dual deflec
pressure due to vacuum and the center line trail
ing edges as herein provided.
»
tion of the air stream regulatory at will so as to
deñect the air stream upwardly, straight ahead, 10
A movable louver is provided at the intake side
or downwardly, at the same time left or right as
of the grille. It is designed to direct the ñow
may be desired;
of air current in the box or to stop said flow
entirely.
A further object of the invention is the pro
vision of a grille providing a greatly increased
The louver embodies a plurality of blades I9
Volume of air at any given foot velocity over 15 pivoted at their ends as at 20 so as to overlap
standard grilles and registers the market affords,
when the louver is closed as indicated by broken
and wherein adjustment of the movable blades
lines in Fig. 2. It is provided with a bar 2|
to direct the direction of air flow may readily be
pivoted to the blades I9 as at 22 so that the blades
accomplished without resort to a wrench as is
I9 are moved in unison.
commonly necessary with all grilles heretofore
produced;
shown as bulbous at their leading edge 23 to
And a further object of the herein invention is
the provision of a grille highly eñioient in ac
The latter blades are
provide a streamline eiîect on the air currents.
A modification of the blade I3 is shown in Fig. 6
where said blade designated as I3’ as shown as
tion, and structurally designed to present a pleas
formed from sheet metal.
ing appearance.
The grille is structurally produced from light
25
I attain these objects by the grille disclosed in
materials readily obtainable in the open market
the accompanying drawings in which:
and at no great cost.
Figure 1 is an elevation of the grille with a
The blades are arranged , to frictionally ride
part thereof broken away to more advantageously
freely and may be moved with one’s iinger or
disclose its structure;
30 any suitable object, a lead pencil for example, no
Figure 2 is an end elevation partly broken away
wrench being required. They are secured in ad
to better disclose the interior of the grille;
justable position and may be used interchange
Figure 3 is a side elevation;
ably in associated arrangement with one another,
Figure 4 is a section on line 4_4 of Fig. 1;
a portion thereof, for example, may be set to de
Figure 5 is a section on line 5_5 of Fig. 1, and 35 flect the air current one way, the balance to dì
Figure 6 is an end View of a modified form oi
rect it another. Moreover, the horizontally posi
blade adaptable to the grille.
tioned blades may be used independently from
Similar numerals of reference indicate like
the vertically positioned blades, or vice-versa.
parts throughout the several views.
The grille is ideal for air conditioning systems,
The grille proper is provided with a conven 40 for example, and may be »produced in varying
tional grille box IU open at front and back to pro
sizes, and assembled at low cost.
vide for the passage of air. It has a flange II
As numerous apparently diirerent embodiments
designed to frame the opening wheresoever pro
and changes in structure may from time to time
vided for setting the grille.
suggest themselves without departing, however,
A transverse bar I2 having its ends fixed
from the scope thereof herein shown and de
against two walls of the box I0 provides a stabili
scribed, it is intended that the description and
zation of said walls and divides the face of the
drawings thereof shall be interpreted as illus
grille.
A plurality of pivoted blades I3 are provided
transverse the grille at right angles to said bar
I2 and are notched at I4 to receive said bar. The
latter is loose fitted into the notch I4.
The blades I3 are pivoted upon blisters I5 pro
vided on two walls of the box I0, said blisters
acting as pivots inserted into holes I6 provided
on the ends of the blades I3.
Other holes I'I are provided in the ends of the
trative and not in a limiting sense.
What I do claim, however, is:
In an airiiow grille, a grille box open at its front
and «back for passage of air therethrough, a rigid
cross bar carried by and dividing said box, and
a plurality 'of grille blades extending across said
box at right angles to said bar and being pivoted
i; at their ends to vopposite sides of said box so asy
to lie in spaced parallel relation to one another
blades I3 to receive dentitive blisters I8 provided
subject to individual tilting in opposite direction,
said blades having rounded wider edges disposed
as stops on the same walls of the box Il) carrying
the yblisters I5 so that the blades I3 may be set
tions extending therefrom and provided with slots
innermost in said box and narrow trailing por
2,500,3so
3
4
in which said cross bar extends, the outer edges
UNITED STATES PATENTS
of said blades being in the same plane with the
Number
Name
Date
l
outer edge of said bar and the outer edges of the
Tuttle ___________ __ Nov. 14, 1871
120,912
grille box, and a plurality of integral projections
Sternberg ________ __ Apr. 9, 1929
on said box, said blades having openings in the 5 1,708,243
Molina ___________ __ June 25, 1929
1,718,754
ends thereof in which said projections are mount
Le Grand _________ __ Aug. 16, 1932
1,872,599
ed to form pivots for said blades, said #blades
Fox _____________ __ Mar. 17, 1936.
2,034,231
having additional openings in the ends thereof
and additional integral projections on said box
arranged to extend into said additional open- 10
ings for holding the blades in adjusted positions.
HUGH I. STOVER.
2,090,908
2,310,843
2,349,544
2,395,319
Anderson _________ __ Aug. 24,
Ditzler ___________ __ Feb. 9,
Fiedler ___________ __ May 23,
Davis ____________ _„ Feb. 19,
1937
1943
1944
1946
FOREIGN PATENTS
REFERENCES CITED
The following references are of record in the 15
ñle of this patent:
Number
107,1 12
533,139
Country
Date
Great Britain _____ -_ June 21, 1917
Great Britain ______ __ Feb. 6, 1941
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