U.S. patent number 3,614,046 [Application Number 04/875,690] was granted by the patent office on 1971-10-19 for hanger for supporting light fixtures, etc..
Invention is credited to Melvin T. Lehman.
United States Patent |
3,614,046 |
Lehman |
October 19, 1971 |
HANGER FOR SUPPORTING LIGHT FIXTURES, ETC.
Abstract
A hanger for supporting light fixtures, electrical conduit,
etc., that consists of a single member provided with pointed ends
which may be driven into a supporting member, such as plywood, and
which has a central depending U-shaped portion for supporting a
jack chain. In one form of the bracket the depending U-shaped
portion extends through an opening in the plywood and in a modified
form the U-shaped portion registers with the plywood opening while
the jack chain extends through the opening.
Inventors: |
Lehman; Melvin T. (Hayward,
CA) |
Family
ID: |
25366203 |
Appl.
No.: |
04/875,690 |
Filed: |
November 12, 1969 |
Current U.S.
Class: |
248/343 |
Current CPC
Class: |
F21V
21/02 (20130101) |
Current International
Class: |
F21V
21/02 (20060101); E04g 017/18 (); E04b
005/52 () |
Field of
Search: |
;248/58,59,62,216,217,219,220,302,303,317,318,339,342,343
;52/475,467 ;85/5P |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Schultz; William H.
Claims
I claim:
1. A hanger for supporting light fixtures and the like,
comprising:
a. an elongated member having a medial looped portion with
outwardly projecting arms that extend at right angles to the looped
portion; and
b. the two outer ends of said arms being pointed and extending in
the same direction as the U-shaped portion of the loop;
c. the medial looped portion having parallel sides that lie in a
plane that also extends through the pointed ends of said
member.
2. The combination as set forth in claim 1: and in which
a. the pointed ends of said arms extending at right angles to the
lengths of said arms.
3. The combination as set forth in claim 1 and in which
a. a jack chain has an end link connected to sad looped portion of
said elongated member.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
In the construction of buildings it is necessary to support light
fixtures, electrical conduit, etc., at specified distances below a
ceiling or roof, I have provided two forms of a single piece
hanger. A hole is drilled through the plywood, decking or sheeting
and the U-shaped portion of one form of the hanger is inserted
through this opening from the upper surface of the plywood. The
U-shaped hanger portion supports a jack chain and the pointed ends
of the hanger are driven into the plywood to anchor the hanger in
place.
2. Description of Prior Art
The U.S. Pat. to Martin Dehn, No. 1,039,367 is for a hook for
hanging pictures in which the hook is provided with looped portions
that may be elongated slightly for adjusting the effective length
of the hook. The U.S. Pat. to Donald J. Smith, No. 3,219,302 is for
a wall hanger which has a horizontal portion designed to extend
through an opening in a dry wall. One end of the hanger contacts
with the inner surface of the dry wall while the other end of the
hanger overlies the outer surface of the dry wall and is provided
with a picture-supporting portion. Neither of these patents can be
used as a hanger that will overlie the upper surface of a
horizontal piece of plywood and has a central U-shaped portion
registering with an opening in the plywood, and a jack chain
hanging from the U-shaped portion and extending below the
undersurface of the plywood so as to support a light fixture,
etc.
SUMMARY OF THE INVENTION
An object of my invention s to provide a hanger for supporting
light fixtures, etc., that is preferably made from a single piece
of galvanized no. 9 gage wire. The device has two arms extending
outwardly from a centrally disposed and downwardly directed
U-shaped portion from which is suspended a jack chain. The two
outwardly extending arms have pointed ends that are bent at right
angles to the lengths of the arms and extend in the same direction
as the U-shaped portion.
There are two forms of the invention. In the preferred form the
U-shaped portion is made long enough to extend entirely through the
opening provided in the plywood or other hanger supporting member.
The modified form has a slight dip in the wire that lies between
the two oppositely extending arms. This dip or U-shaped portion is
registered with the opening in the hanger supporting member so that
the jack chain which depends from the dip will extend through the
opening. The dip has a sufficient depth so that the uppermost link
on the jack chain that is suspended from this dip will not project
above the plane occupied by the two hanger arms.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a front elevation of the hanger showing the central
U-shaped portion extending entirely through an opening provided in
the hanger-supporting member and further showing the pointed ends
of the hanger arms embedded in the supporting member.
FIG. 2 is a transverse section through the hanger and is taken
along the line 2-2 of FIG. 1.
FIG. 3 is a front elevation of a modified form of hanger and shows
the central U-shaped portion as a slight dip in the wire forming
the hanger, this dip registering with an opening provided in the
hanger-supporting member so that the jack chain which hangs from
the dip will extend through the opening in the hanger-supporting
member.
FIG. 4 is a transverse section through the hanger and is taken
along the line 4-4 of FIG. 3.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In carrying out my invention, I provide a hanger preferably made
from No 9 gage galvanized wire. This hanger has a central or medial
U-shaped portion A, and two outwardly extending arms B an C, see
FIG. 1. The axes of the two arms coincide with each other and each
arm has a pointed end that is bent at right angles to the arm and
extends in the same direction as the central U-shaped portion. The
pointed end 1 of the arm B is embedded in a hanger supporting
member D, such as plywood, while the pointed end 2 for the arm C is
embedded in the same hanger supporting member.
The central U-shaped portion A extends through an opening 3
provided in the hanger supporting member D, see FIGS. 1 and 2. The
opening is large enough in diameter to receive both parallel sides
4 and 5 of the U-shaped portion A, and this portion extends
entirely through the opening. A jack chain E is composed of a
series of inter connected links and the uppermost link 6 is
threaded over either one of the hanger arms B or C and is slid down
into the closed end 7 of the U-shaped portion A before the hanger
is placed in position on the hanger supporting member D.
Both FIGS. 1 an 2 show the hanger positioned on the plywood, D, or
other hanger supporting material such as decking or sheeting. The
U-shaped portion A extends through the opening 3 in the hanger
supporting member D and the pointed ends 1 and 2 of the hanger are
embedded in the member. The jack chain extends downwardly from the
closed end 7 of the U-shaped portion A, and the chain can support
any desired device, such as a light fixture indicated generally at
F in FIGS. 1 and 2. It is possible to have the jack chain E
separate into two branches, as shown in FIG. 1, if desired.
The embedded pointed ends 1 and 2 of the hanger prevent the lateral
displacement of the hanger on the hanger supporting member D. Also,
in case the member D forms a part of the roofing which is to
receive a tar and gravel coating, the embedded pointed hanger ends
will prevent the hanger from popping out of position when rolls of
tar paper are dropped upon the member D. Furthermore, the embedded
pointed hanger ends will prevent the hanger from being pulled
through the opening 3 in the member D should a pull on the jack
chain E tend to bend the hanger arms B and C and swing them
upwardly into substantial alignment with the sides 4 and 5 of the
U-shaped portion A so that the entire hanger could be pulled
through the opening. The longer U-shaped portion A causes the
closed end 7 to project below the member D so that the jack chain E
can be changed at a later time if desired without disturbing the
hanger.
A modified form of the invention is disclosed in FIGS. 2 and 4.
This form is similar to the preferred form except that the central
U-shaped portion of the hanger is made much shorter so that it more
nearly resembles a slight dip in the wire portion that
interconnects the two arms. The dip in the wire is shown at G, and
since all other parts of the modified form of hanger are similar to
the equivalent parts in the preferred form , the same reference
letters and numerals will be used except that they will be
primed.
The dip G, in the hanger will register with an opening 3' in the
hanger supporting member D' ,and this opening may be of a smaller
diameter than the opening 3' in the member D, because it is made
only large enough to receive the jack chain E' . The arms B' and C'
overlie the upper surface of the hanger supporting member D' , and
the pointed ends 1' and 2' are embedded in the member. The jack
chain E' has its link 6' supported by the dipped portion G of the
hanger and the chain extends downwardly through the opening 3' and
supports a light fixture or other device, none being indicated in
FIGS. 3 and 4.
The short loop or dip G in the hanger is to prevent the top link 6'
of the jack chain E' from projecting conduits, the arms 1' and 2'
where it would likely rupture any tar paper, not shown, that was
applied to the upper surface of the member D' the jack The dip G
does not extend entirely through the opening 3' and that is why the
diameter of this opening may be made smaller than the diameter of
the opening 3 in the member D.
It is obvious that the jack chains E or E' could support a drop
ceiling, not shown, if desired. They could also support electric
conuits, water or gas pipes, none being show, This is why I do not
wish to be confined to any particular type of item that is to be
supported by thejack chain. I have shown the electric light fixture
F, merely by way of example.
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