U.S. patent number 3,709,532 [Application Number 05/198,140] was granted by the patent office on 1973-01-09 for split tee device.
Invention is credited to Joseph Caligiuri.
United States Patent |
3,709,532 |
Caligiuri |
January 9, 1973 |
SPLIT TEE DEVICE
Abstract
This invention relates to a two-piece removable split-tee device
adapted to removably hold a rod disposed transversely to a pair of
parallel rods as in a jungle gym or a store display fixture. The
device comprises two substantially mirror image half pieces
slidably disposed along a fixed rod and adapted to secure a second
rod at a right angle thereto. Hook means are provided in the two
half pieces to produce a co-acting locking engagement
therebetween.
Inventors: |
Caligiuri; Joseph (Bronx,
NY) |
Family
ID: |
22732147 |
Appl.
No.: |
05/198,140 |
Filed: |
November 12, 1971 |
Current U.S.
Class: |
403/233;
182/228.6; 285/133.11 |
Current CPC
Class: |
F16B
7/0486 (20130101); F16B 7/22 (20130101); F16B
7/00 (20130101) |
Current International
Class: |
F16B
7/00 (20060101); F16B 7/22 (20060101); F16b
007/00 () |
Field of
Search: |
;285/156,373,419
;182/228 ;287/56,54A,54B,54C |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Kundrat; Andrew V.
Claims
I claim:
1. A T-shaped two piece holder adapted to secure a rung to a pair
of opposed ladder supports comprising a pair of substantially alike
T-shaped half sections adapted to embrace a support and a rung; and
hook and pin locking means disposed respectively in said half
sections to effect locking engagement therebetween and to said
ladder support and rung; the T-shaped half sections are each
provided with a cavity in the wall portion opposed to a rung
embracing portion of said half section and a hook fixedly secured
within one cavity and a co-acting locking pin secured within the
co-acting cavity of a co-acting half section.
2. The holder of claim 1 wherein the portions of the half-section
embracing the ladder support are provided with suitable cavities
adapted to receive rubber friction pads to effect seizure of said
half sections to said ladder supports.
Description
The conventional plumber's type display T-fitting is of integral
construction and can not be easily removed from the ends of a
fixture having fixed ornamental balls on the ends thereof.
As a statement of this invention, the invention consists of the
provision of split T-shaped removable holders for ladder rungs, so
that the rungs may be selectively disposed and selectively spaced
upon the parallel longitudinal ladder supports.
An objective of this invention is to provide rung supporting means
for rapidly adding, subtracting or spacing ladder rungs.
Another objective is to provide a two-piece lockable T-shaped
holder adapted to be selectively mounted on a ladder support to
hold a rung thereto.
These and other objectives of this invention will become apparent
when reading the following disclosure of an illustrative embodiment
shown in the accompanying drawing in which;
FIG. 1 is a perspective view of a rung selectively secured to a
pair of removable split T-shaped holders of this invention securing
a rung to a pair of parallel supports,
FIG. 2 is an end view of a split T-shaped holder,
FIG. 3 is a side view of said T-shaped holder,
FIG. 4 is a front view of said holder for receiving a rung,
FIG. 5 is a section view taken on line 5--5 of FIG. 6 of the
seperated split T-shaped holder, showing the fixed hook means of
one half section in relationship to the pin for engaging said hook
disposed in the co-acting half section,
FIG. 6 is a section view taken on line 6--6 of FIG. 5 and showing
the manner of securing the hook within a cavity by means of a rivet
pin in one section and the location of the locking pin for engaging
said hook in a cavity of the other section of the holder,
FIG. 7 is a view taken along the split face and on line 7--7 of
FIG. 1 and showing the cavities for receiving rubber pads to effect
rigid seizure of said holder to said ladder rung and support,
and
FIG. 8 is a section view taken on line 8--8 of FIG. 7 showing the
depth of the seizure rubber receiving cavities.
This invention consists of two preferably metal half sections each
having a T-shaped configuration. The half section 10 has a hook 10X
and the half section 11 is provided with a co-acting locking pin
11X for said hook. Otherwise the two half sections are
substantially mirror images and can be made in a single mold since
the cavities for both the hook and its co-acting locking pin in the
respective sections are substantially alike.
As shown in FIG. 1 a ladder rung 12 is movably and removably
selectively secured to a pair of opposed ladder supports 13. For
display type ladders mounted at right angles to a store wall, the
ends of the supports are provided with ornamental fixed balls
14.
As shown in FIG. 3, the half sections are each provided with a
central substantially hemi-spherical dome 20 integral to a pair of
opposed ladder support embracing extensions 21 and integral also
with a rung embracing extension 22.
The cavity of the hook holding section is provided with a hook
holder rivet pin 23 holding said hook 10X in place. The
corresponding cavity molded in the co-acting holder half section,
is provided with a suitably located locking pin 11X so that the
hook 10X may be inserted into said cavity along side said pin 11X
and thereafter moved into hook locking engagement with said pin
11X.
The holder sections may be made of plastic if desired. When made of
metal, preferably the sections 21 are each provided with a
plurality of rectangular cavities 24 in said extensions 21 and 22
for receiving relatively thin rubber pads 25 to frictionally size
the ladder support 13.
Additionally, the extensions 22 may be provided with apertures for
set screws or locking pins, if desired.
* * * * *